CN102886952B - Comprise the film laminates with damping capacity of the sublayer being made up of polyvinyl alcohol contracting (different) aldehyde of plasticizer-containing - Google Patents

Comprise the film laminates with damping capacity of the sublayer being made up of polyvinyl alcohol contracting (different) aldehyde of plasticizer-containing Download PDF

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Publication number
CN102886952B
CN102886952B CN201210252492.4A CN201210252492A CN102886952B CN 102886952 B CN102886952 B CN 102886952B CN 201210252492 A CN201210252492 A CN 201210252492A CN 102886952 B CN102886952 B CN 102886952B
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polyvinyl alcohol
aldehyde
different
layer
film laminates
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CN102886952A (en
Inventor
M.迈泽
J.贝克胡伊岑
M.施托伊尔
U.凯勒
M.弗兰克
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Kuraray Co Ltd
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Kuraray Co Ltd
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Abstract

The present invention relates to comprise the film laminates with damping capacity of the sublayer being made up of polyvinyl alcohol contracting (different) aldehyde of plasticizer-containing.Specifically, the present invention relates to a kind of film laminates, become with C-shaped with layer A, B of at least one Pioloform, polyvinyl acetal by each at least one plasticizer self-contained of at least three, two of which outer layer A and C comprises the identical or different Pioloform, polyvinyl acetal of at least one PVA-based ratio with 18.5 to 23 weight %, at least one inner layer B comprises the Pioloform, polyvinyl acetal of the PVA-based ratio with 12 to 18 weight %, and at least one of layer A, B or C comprises at least one polyvinyl alcohol contracting (different) aldehyde.This film laminates may be used for manufacturing for automobile, aircraft, boats and ships, architectural glazings, the glass film layered product/glass composite of facade parts, or is used for manufacturing photovoltaic module.

Description

Comprise, by what the polyvinyl alcohol of plasticizer-containing contracted the sublayer made of (different) aldehyde, there is damping The film laminates of performance
Technical field
The present invention relates to one be such as suitable as in composite safe glass (Verbundsicherheitsgl ser) The film laminates in intermediate layer, described film laminates is by least three polyvinyl alcohol based on plasticizer-containing contracting (just) aldehyde The layer of (Polyvinyl (n) acetal) and/or polyvinyl alcohol contracting (different) aldehyde (Polyvinyl (iso) acetal) is formed and to sound The damping capacity that sound has had.
The present invention relates to the film laminates in a kind of intermediate layer being such as suitable as in composite safe glass, described film is laminated Body is formed by the layer of at least three polyvinyl alcohol based on plasticizer-containing contracting (just) aldehyde and/or polyvinyl alcohol contracting (different) aldehyde and is had Excellent penetration performance (Penetrationseigenschaft).
Prior art
Composite safe glass is generally made up of the intermediate coat of two glass plates and connection glass plate.Mainly make as membrane material With the polyvinyl butyral resin (PVB) of plasticizer-containing, it can react acquisition by making polyvinyl alcohol and hutanal.
The feature become more and more important of compound window glass is its sound insulation value, and it can be adjusted by corresponding interlayer film Joint.
To this end, the commonly used intermediate coat with 2 to 5 sublayers, the most each sublayer has difference in terms of its mechanical strength, And realize sound insulation from there through mechanical decoupled conjunction.
Can such as by PVA-based in the plasticizer loading of described film or the Pioloform, polyvinyl acetal of use or The ratio of polyvinyl acetate ester group, sets the different mechanical strengths of the film of Pioloform, polyvinyl acetal based on plasticizer-containing.
Generally, the mechanical strength of PVB film can be passed through in its plasticizer loading, or the Pioloform, polyvinyl acetal by use Polyvinyl alcohol group or the ratio of polyvinyl acetate ester group regulated.
Such as, therefore US 5,340,654 or WO 2006/102049 describes multilayer system, and wherein ground floor comprises and has The polyvinyl butyral resin of high residue acetate content, the second layer comprises the polyvinyl alcohol contracting fourth with low-residual acetate content Aldehyde.
Similarly, WO 2008/137367 describes multilayer system, the sublayer being wherein made up of polyvinyl butyral resin (Teilschicht) different in terms of polyvinyl alcohol content.
Due to different residual acetate content and/or different polyvinyl alcohol group ratios, each sublayer has different Plasticizer loading, and therefore there is different mechanical strengths.It is achieved in mechanical decoupled conjunction and the sound insulation therefore improved.
Known multilayer film is based on the polyvinyl butyral resin that can obtain by making polyvinyl alcohol and hutanal react.Use There is polyvinyl alcohol contracting (just) butyraldehyde of different polyvinyl alcohol or polyvinyl acetate contents, it is thus achieved that the different plasticizer of each layer Content.The mechanical performance so causing each layer is different, and these differences are the biggest, and the sound insulation of layered product is the best.Excellent sound insulation is usual Cause the mechanical performance of difference.Additionally, each layer is incompatible, there's almost no mechanical adhesion the most betwixt, and may be each other Relatively slide.Incompatible each layer no longer can be mixed with each other, and therefore these film laminates can only be recycled in technique with differing from.
Therefore the purpose of the present invention is the film laminates manufacturing and having sound insulation value, due to gathering the plasticizer-containing used Vinyl acetal is selected, and described film has high plasticizer compatbility and therefore shows excellent sound insulation.
Have now unexpectedly been found that the film laminates comprising at least one layer based on polyvinyl alcohol contracting (different) aldehyde has excellent Plasticizer compatbility and owing to different mechanical strengths has excellent damping capacity.
Do not use the film laminates of polyvinyl alcohol contracting (different) aldehyde such as by WO 2006/102049 A1, WO 2011/ 078314 A1, WO 2011/081190 A1, WO 2011/024788 A1, US 2007014976 and JP 2011042552 Know.The advantageous property of polyvinyl alcohol contracting (different) aldehyde is not the most described.
Present invention is accordingly directed to the film laminates become by least three layer A, B with C-shaped, each layer comprises at least one plasticizer With at least one Pioloform, polyvinyl acetal, wherein
-two outer layer A with C comprise the most identical of at least one PVA-based ratio with 18.5 to 23 weight % Or different Pioloform, polyvinyl acetals
-at least one inner layer B comprises the Pioloform, polyvinyl acetal of the PVA-based ratio with 12 to 18 weight %, and
At least one of-layer A, B or C comprises at least one polyvinyl alcohol contracting (different) aldehyde.
The film laminates of the present invention preferably containing at least one, particularly two are contracted (just) containing at least one polyvinyl alcohol The layer of aldehyde.Therefore, the film laminates of the present invention can have at least one, and particularly two comprise the contracting of at least one polyvinyl alcohol The layer of (different) aldehyde.
In this flexible program of the present invention, film laminates can be formed by this way so that two outer layer A and C comprises polyvinyl alcohol contracting (different) aldehyde that at least one is the most identical or different, and inner layer B comprises at least one polyvinyl alcohol contracting (just) Aldehyde.Alternatively, two outer layer A and C can comprise at least one the most identical or different polyvinyl alcohol contracting (just) aldehyde, and internal layer B can comprise at least one polyvinyl alcohol contracting (different) aldehyde.
In another embodiment of the present invention, the film laminates of the present invention can be only by comprising at least one polyethylene Layer A, B of alcohol contracting (different) aldehyde become with C-shaped, and i.e. two outer layer A and C comprise at least one the most identical or different polyvinyl alcohol contracting (different) aldehyde, and inner layer B comprises at least different from layer A and C polyvinyl alcohol contracting (different) aldehyde.
According to ISO 16940:2008, based on damping capacity, to by 0.8 be laminated between two glass plates thick for 2 mm The test sample that interlayer film thick for mm is formed measures the deadening of the film laminates of the present invention.Measure first in every case Pattern.
The deadening of the film laminates of the present invention should be maximum at a temperature of the application of follow-up glass laminate.At vapour In glass for vehicle window, because plate is heated in the winter time, freeze by air conditioning system in summer, so application temperature is about 20 DEG C.? During above-mentioned measurement is arranged, preferably the temperature range of 17.5 to 22.5 DEG C, the damping of the film display maximum of the present invention, particularly hinders Buddhist nun's value for more than 19%, preferably greater than 20% and more preferably above 23%.
Each layer that the present invention uses comprises by every case with " n-" (i.e. straight chain compound) or " iso-" aldehydes or ketones Compound (i.e. branched chain compound) makes the Pioloform, polyvinyl acetal that Polyvinyl acetal obtains.
Polyvinyl alcohol contracting (different) aldehyde that the present invention uses is preferably by making at least one polyvinyl alcohol wrap with one or more Containing 4 to 10 carbon atoms and there is at the α position or β position of ketone groups at least one branched aliphatic ketone compound reaction obtain ?.The aliphatic ketone compound being used for manufacturing polyvinyl alcohol contracting (different) aldehyde in layers can be identical or different.Poly-for manufacturing The aliphatic ketone compound of vinyl alcohol contracting (different) aldehyde is the most identical;Polyvinyl alcohol contracting (different) in different layers Aldehyde is the most chemically uniform, and i.e. they have identical PVA-based and polyvinyl acetate ester group ratio and identical The degree of polymerization.Especially, isobutylaldehyde is used to manufacture polyvinyl alcohol contracting (different) aldehyde.
When manufacturing polyvinyl alcohol contracting (different) aldehyde that the present invention uses, in addition to described side chain ketonic compound, it is possible to additionally Use one or more nonbranched aliphatic ketone compounds comprising 2 to 10 carbon atoms for acetalation.Just it is preferably used The mixture of butyraldehyde and/or acetaldehyde and isobutylaldehyde.Acetal radical in polyvinyl alcohol contracting (different) aldehyde produced by side chain ketonic compound Ratio should be greater than 60 mol% of branched and nonbranched acetal radical summation, preferably greater than 80 mol%.
The present invention use polyvinyl alcohol contracting (just) aldehyde especially by least one polyvinyl alcohol with one or more comprise 2 to The aliphatic nonbranched ketonic compound reaction of 10 carbon atoms produces.Hutanal is preferably used for this.
When manufacturing polyvinyl alcohol contracting (just) aldehyde that the present invention uses, in addition to described nonbranched ketonic compound, it is possible to Additionally use one or more branced aliphatic ketonic compounds comprising 4 to 10 carbon atoms for acetalation.Just it is preferably used The mixture of butyraldehyde and/or acetaldehyde and isobutylaldehyde.Contracting in polyvinyl alcohol contracting (just) aldehyde produced by nonbranched ketonic compound Aldehyde radical ratio should be greater than 60 mol% of branched and nonbranched acetal radical summation, preferably greater than 80 mol%.
In the different layers manufacturing Pioloform, polyvinyl acetal (polyvinyl alcohol contracting (different) aldehyde and polyvinyl alcohol contracting (just) aldehyde) Polyvinyl alcohol can be the most identical or different, for the form of pure material or for have the different degree of polymerization or degree of hydrolysis The form of mixtures of polyvinyl alcohol.
The poly-acetic acid second of the Pioloform, polyvinyl acetal (polyvinyl alcohol contracting (different) aldehyde and polyvinyl alcohol contracting (just) aldehyde) in different layers Alkene ester content can be hydrolyzed into the polyvinyl alcohol of corresponding proportion by use and regulate.The polarity of Pioloform, polyvinyl acetal is by poly-acetic acid The impact of vinyl acetate content, plasticizer compatbility and the mechanical strength of the most each sub-film also change.Be used as multiple aldehyde or The mixture of ketonic compound carries out the acetalation of polyvinyl alcohol.
Each layer preferably comprises based on this layer, and polyvinyl acetate ester group ratio is the most identical or different, is 0.1 to 15 weight Amount %, polyvinyl alcohol contracting (different) aldehyde of preferably 0.1 to 8 weight % and particularly 0.1 to 3 weight % and/or polyvinyl alcohol contracting (just) Aldehyde.The polyvinyl acetate ester group ratio of 0.1 to 2 weight % is the most particularly preferred.
Layer A and C preferably comprises based on each layer, has the most identical or different PVA-based of 19.0 to 21 weight % Polyvinyl alcohol contracting (different) aldehyde of ratio and/or polyvinyl alcohol contracting (just) aldehyde.Layer B preferably comprise based on described layer, have 14.0 to Polyvinyl alcohol contracting (different) aldehyde of the PVA-based ratio of 16.0 weight % or 16.1 to 18 weight % and/or polyvinyl alcohol contracting (just) Aldehyde.
Each layer preferably comprises uncrosslinked polyvinyl alcohol contracting (different) aldehyde and/or polyvinyl alcohol contracting (just) aldehyde.It is used as handing over Polyvinyl alcohol contracting (different) aldehyde of connection and/or polyvinyl alcohol contracting (just) aldehyde of crosslinking.The method of cross-linked pioloform such as exists EP 1527107 B1 and WO 2004/063231 A1 (wraps the hot self-crosslinking of carboxylic Pioloform, polyvinyl acetal), EP 1606325 A1 (with the Pioloform, polyvinyl acetal of polyacetals crosslinking) and the WO 03/020776 A1 (polyethylene with glyoxalic acid crosslinking Acetal) described in.
The polyvinyl alcohol using crosslinking in inner layer B contract (different) aldehyde and/or crosslinking polyvinyl alcohol contracting (just) aldehyde be special Preferably.In this case, using compared with the material that each is uncrosslinked especially, solution viscosity increases by the crosslinking of 25 to 200% Polyvinyl alcohol contracting (different) aldehyde and/or crosslinking polyvinyl alcohol contracting (just) aldehyde.Such as, therefore uncrosslinked material can have 80 The solution viscosity of mPas, the material of crosslinking can have the solution viscosity of 100 to 250 mPas.According to WO 03/020776 A1, It is applicable to manufacture crosslinking with the common polyvinyl alcohol of acetalization of the mixture of above-mentioned ketonic compound and dialdehyde or three aldehyde, such as glutaraldehyde Polyvinyl alcohol contracting (different) aldehyde and polyvinyl alcohol contracting (just) aldehyde.
The Pioloform, polyvinyl acetal (polyvinyl alcohol contracting (different) aldehyde and polyvinyl alcohol contracting (just) aldehyde) used in layer A, B and C is permissible Have less than 3000, the identical or different average degree of polymerization of preferably 200 to 2800.Preferably, use in layer A, B and C is poly- Vinyl acetal (polyvinyl alcohol contracting (different) aldehyde or polyvinyl alcohol contracting (just) aldehyde) has the average degree of polymerization of 900 to 2500.
Generally, the compatibility between plasticizer and Pioloform, polyvinyl acetal reduces along with the decline of plasticizer polarity.Therefore Compared with those plasticizers with relatively low polarity, the plasticizer with high polarity is the most compatible with Pioloform, polyvinyl acetal. It addition, the compatibility of the plasticizer of low polarity rises along with acetalizing degree and improves, i.e. along with hydroxy number declines and thus gathers Vinyl acetal polarity declines and improves.
Due to the different Pioloform, polyvinyl acetal group (just with different) of each layer, described layer can be identical PVA-based Accommodate different plasticising dosage in the case of group's number, there is no plasticizer exudation or migration.Different plasticising dosage also causes each layer Mechanical performance is different, therefore layer mechanical performance and thus film laminates mechanical performance can by selection plasticizer and/or The polyvinyl alcohol content of the Pioloform, polyvinyl acetal used regulates.
Each layer can each self-contained identical or different plasticizer (first, second or the 3rd).Useization in all layers Plasticizer identical on is preferred.
Each layer can comprise the plasticizer of following plasticizer becoming known for PVB film from least one or plasticizer mixing Thing:
-polyhydric aliphatic race or the ester of aromatic acid, such as hexanedioic acid dialkyl ester, such as dihexyl adipate, adipic acid Dioctyl ester, adipic acid hexyl cyclohexyl, adipic acid-heptyl ester and the mixture of nonyl ester, diisononyl adipate, adipic acid heptyl nonyl Ester, and the ester of the ester alcohol of adipic acid and alicyclic ester alcohol or ether-containing key, DAS di alkyl sebacate, such as dibutyl sebacate, and The ester of the ester alcohol of decanedioic acid and alicyclic ester alcohol or ether-containing key, the ester of phthalic acid, phthalic acid butyl benzyl ester or Double-2-the butoxyethyl of phthalic acid, the ester of cyclohexane dicarboxylic acid, such as 1,2-cyclohexane dicarboxylic acid dinonyl
-there is the one or more unbranched or polyhydric aliphatic race of branced aliphatic or aromatic substituents or aromatic series Alcohol or the ester of oligo-ether glycol or ether, such as diethylene glycol, 2,2'-ethylenedioxybis(ethanol). or tetraethylene glycol (TEG) and straight chain or branced aliphatic or alicyclic carboxylic The ester of acid;The example of later group is it can be mentioned that diethylene glycol-bis--(2-ethylhexanoate), 2,2'-ethylenedioxybis(ethanol) .-bis--(2 ethyl hexanoic acid Ester), 2,2'-ethylenedioxybis(ethanol) .-bis--(2 Ethylbutanoic acid ester), tetraethylene glycol (TEG)-bis--positive heptanoate, 2,2'-ethylenedioxybis(ethanol) .-bis--positive heptanoate, 2,2'-ethylenedioxybis(ethanol) .-bis-- N-caproate, tetraethylene glycol dimethyl ether and/or dipropyleneglycol benzoate
-there is aliphatic or aromatic ester alcohol phosphate, such as three (2-ethylhexyl) phosphate ester (TOF), tricresyl phosphate Ethyl ester, diphenyl-ethylhexyl dihydrogen phosphate, and/or tricresyl phosphate
The ester of-citric acid, succinic acid and/or fumaric acid.
Particularly preferably one or more following plasticizers of use: Diisooctyl Sebacate (DOS), adipic acid two-2- Octyl Nitrite (DOA), dihexyl adipate (DHA), dibutyl sebacate (DBS), 2,2'-ethylenedioxybis(ethanol) .-bis--positive heptanoate (3G7), four Glycol-bis--positive heptanoate (4G7), 2,2'-ethylenedioxybis(ethanol) .-bis--2-ethylhexanoate (3GO or 3G8), tetraethylene glycol (TEG)-bis--n-2-ethyl hexyl Acid esters (4GO or 4G8), two-2-butoxyethyl group adipate ester (DBEA), two-2-Butoxyethoxy ethyl adipate esters (DBEEA), two-2-butoxyethyl group sebacate (DBES), two-2-ethylhexyl phthalate (DOP), two-different nonyl Base phthalic acid ester (DINP), 2,2'-ethylenedioxybis(ethanol) .-bis--different pelargonate, 2,2'-ethylenedioxybis(ethanol) .-bis--2-propyl group alkyl caproates, 1,2-hexamethylene dicarboxyl Acid diisononyl esters (DINCH), three (2-ethylhexyl) phosphate ester (TOF) and dipropyleneglycol benzoate.
Additionally, each layer can comprise other additive, such as quantity of residual, UV absorbent, antioxidant, adhesiveness regulates Agent, fluorescent whitening agent, stabilizer, coloring agent, processing aid, organic or inorganic nano-particle, pyrolytic silicon dioxide and/or surface Active substance.
In a kind of flexible program of the present invention, all layers comprise above-mentioned additive with essentially identical concentration.At this In bright a kind of particular variation scheme, at least one layer does not comprise any adhesiveness regulator (antiplastering aid).In the scope of the invention In, antiplastering aid is understood to mean that the Polyvinyl acetal film that can use it to the regulate plasticizer-containing adhesiveness to glass surface Compound.This compounds is well known by persons skilled in the art;Alkali metal for this most commonly used organic acid Or alkali salt, such as potassium acetate/magnesium.
For improving rigidity, at least one layer also can comprise 0.001 to 20 weight %, preferably 1 to 15 weight %, particularly 5 to The SiO of 10 weight %2, it is optionally doped with Al2O3Or ZrO2
Each layer in film laminates can almost use with any thickness, and condition is not change sound-proofing in disadvantageous mode Energy.Therefore all layers can have identical thickness, but each layer of different-thickness also be can be combined.With three layers of complex form Inventive film layered product preferably layout in, outer layer A and C has identical thickness substantially, and puigging B can be as much as possible Thin.Therefore puigging B can have the thickness of 0.05 to 0.20 mm in the case of the gross thickness of film laminates is 0.76 mm.
The film laminates of the present invention preferably has the gross thickness of industrial routine, and such as 0.38,0.76 and 1.14 mm are (i.e. Many times of 0.38 mm).
For manufacturing the film laminates of the present invention, each layer can first pass through extrusion and manufacture respectively, the most such as by together It is wound up in film roll and mechanically engages, form the interlayer film of the present invention.Also can by while each layer of coextrusion manufacture film layer Laminate.It is, for example possible to use multilamellar nozzle or the feed block of equipment carry out coextrusion for this.
In automotive field, it is often used in upper area the film with what is called " colour band ".To this end, the top of film is permissible With the polymer melt coextrusion coloured for this, or in multilayer system, one of each layer can different colors.At this In bright, this point can realize by completely or partially making at least one layer of coloring.
Film laminates or each layer of the present invention are generally manufactured by extrusion or co-extrusion, and (melted at certain condition Pressure, melt temperature and mold temperature) under formed melt fractured surface, the most random surface roughness.
It is alternatively possible to be imprinted with this that process (Pr gevorgang) makes to have manufactured between at least one pair of roller Bright film laminates imprints with regular nonrandom roughness.The film of impressing generally shows during compound glass manufacture The exhaust performance (Entl ü ftungsverhalten) improved, and it is preferred for automotive field.Independent of manufacture method, this Bright film laminates has and is applied to side or the more preferably surface texture on bilateral, and described surface texture has 15 to 150 μ M, preferably 15 to 100 μm, more preferably 20 to 80 μm, and roughness R of particularly 40 to 75 μmz
The principle manufacture of film based on Pioloform, polyvinyl acetal and composition are at such as EP 185 863 B1, EP 1 118 258 B1, WO 02/102591 A1, EP 1 118 258 described in B1 or EP 387 148 B1.
The film laminates of the present invention is suitable for manufacturing glass film layered product/glass, glass film layered product/plastics are combined Body, or plastics/film laminates/Plastic composite body.Especially, the plastic plate being made up of Merlon, PET or PMMA is used.
Film laminates is particularly well-suited to manufacture for automobile, aircraft, boats and ships, architectural glazings, the glass film of facade parts Layered product/glass, glass film layered product/Plastic composite body, or plastics/film laminates/Plastic composite body, or be used for manufacturing light Volt module.
Especially, the film laminates of the present invention can be by mode well known by persons skilled in the art and one or more glass Glass flaggy pressure, is used for manufacturing composite safe glass.Composite safe glass may be used for automotive field, is used for example as windshield, With for building field, such as window or transparent facade parts, or it is used for manufacturing furniture.
For having the functional windshield of HUD, advantageously provide at least one layer of A, B or the C with wedge-shaped cross section. Especially, layer B has wedge-shaped cross section and layer A with C has uniformly (face is parallel) section.
Detailed description of the invention
Measuring method
According to ASTM D 1396-92Measure polyvinyl alcohol content and the polyvinyl acetate contents of PVB.Acetalizing degree (= Butyral content) can total as the polyvinyl alcohol content measured according to ASTM D 1396-92 and polyvinyl acetate contents Calculate with the differential section of distance 100.By formula well known by persons skilled in the art, weight % is converted into mol%.
By being dissolved in ethanol by film, and follow-up quantitative gas chromatography method determines filmPlasticizer loading.For Determine the plasticizer loading of each sub-film, it is necessary to after the conditioning time of about a week, i.e. the most basic in the migration of plasticizer After end, multilayer film is the most separated, and measures respectively.
The measurement of damping capacity
By according to ISO 16940:2008, measuring the damping capacity of machinery impedance measuring film.To this end, film is laminated to 2 Between two glass plates that mm is thick, and therefrom cut lengths are the sample of 300 × 25 mm.By means of the cyano group third in reagent Bonding ailhead screw (UA0866 type/Br ü el & Kjaer) is put on this glass specimen by olefin(e) acid ester adhesive, and so making can By means of screw thread, sample is connected directly to reluctance head (8001 types/Br ü el & Kjaer GmbH).So can 1 to 10, Measure the power at the point of glass specimen and acceleration in the frequency range of 000 Hz simultaneously.Reluctance head is directly placed at vibration swash Send out device (4809 types/Br ü el & Kjaer GmbH) sway on platform, transmit required power whereby.To both be placed on can In the heat insulation heating cupboard (Binder company) of regulation, so make to measure damping and amortization the temperature range of preferably 0 to 40 DEG C Energy.Manufacture by means of noise signal generator (PULSE Frontend type 3560B-040/Br ü el & Kjaer GmbH) now Noise, this noise signal generator also serves as signal receiver.Noise is via power amplifier (2718 types/Br ü el & Kjaer GmbH) it is sent to oscillatory excitation device.Frequency range is 0 to 5,000 Hz.Now, absorb by means of power/acceleration, directly Connect via reluctance head, measure the response of the glass specimen vibration to producing at different temperatures, and use analysis software (PULSE FFT Analysis 7770N2 type/Br ü el & Kjaer GmbH) it is evaluated.By the conversion letter of the power measured and acceleration Number, determines the different natural frequency of vibration mode n of glass specimenAnd half breadth.3dB under signal maximum Place selects half breadth.Use formulaDetermine the loss factor under different natural frequenciesOr damping.High Loss factor or high damping percentage ratio can serve as the quality metrics of sound insulation value.At the temperature model considered of 0 to 40 DEG C Damping curve the widest in enclosing is valuable.
Because the damping capacity of material depends on temperature, so measuring this sample in the selected temperature scope at 5 DEG C of intervals, Described temperature range covers the range of application of sound-absorbing glass in principle.
The measurement of the tensile property of film
According to ISO 527, with the speed of 200 mm/min, measure the tear of film by means of tester for elongation (TIRA company) Intensity and the value of elongation at break.
Embodiment
1) the general synthesis step of polyvinyl alcohol contracting (just) aldehyde
The polyvinyl alcohol Mowiol 28-99 (from the commodity of Kuraray Europe GmbH) of 100 weight portions is dissolved in In the water of 975 weight portions, it is simultaneously heated to 90 DEG C.The hutanal of 57.5 weight portions is added, the temperature of 12 DEG C the temperature of 40 DEG C Degree under agitation adds 20% hydrochloric acid of 75 weight portions.73 are heated the mixture to after polyvinyl butyral resin (PVB) precipitates DEG C, and stirring 2 hours at such a temperature.After cooling to room temperature, separate PVB, be washed with water to neutrality, and be dried.Obtain There is the polyvinyl alcohol content of 20.3 weight % and the PVB of the polyvinyl acetate contents of 0.9 weight %.
2) there is the synthesis step of polyvinyl alcohol contracting (just) aldehyde of the polyvinyl alcohol content of 14.1 weight %
By the polyvinyl alcohol Mowiol 30-92 of 100 weight portions (from the commodity of Kuraray Europe GmbH, averagely The degree of polymerization is 2100) it is dissolved in the water of 975 weight portions, it is simultaneously heated to 90 DEG C.56.8 weight portions are added the temperature of 40 DEG C The glutaraldehyde b of hutanal and 0.06 weight portion, and 20% hydrochloric acid of 100 weight portions is under agitation added the temperature of 12 DEG C.Poly- 69 DEG C are heated the mixture to after vinyl butyral (PVB) precipitation, and stirring two hours at such a temperature.It is being cooled to room After using warming therapy, separate PVB, be washed with water to neutrality, and be dried.Obtain polyvinyl alcohol content and 8.8 weights with 14.1 weight % The PVB of the polyvinyl acetate contents of amount %.
3) there is the synthesis step of polyvinyl alcohol contracting (just) aldehyde of the polyvinyl alcohol content of 15.1 weight %
By the polyvinyl alcohol Mowiol 30-92 of 100 weight portions (from the commodity of Kuraray Europe GmbH, averagely The degree of polymerization is 2100) it is dissolved in the water of 975 weight portions, it is simultaneously heated to 90 DEG C.55.5 weight portions are added the temperature of 40 DEG C The glutaraldehyde b of hutanal and 0.06 weight portion, and 20% hydrochloric acid of 100 weight portions is under agitation added the temperature of 12 DEG C.Poly- 69 DEG C are heated the mixture to after vinyl butyral (PVB) precipitation, and stirring two hours at such a temperature.It is being cooled to room After using warming therapy, separate PVB, be washed with water to neutrality, and be dried.Obtain polyvinyl alcohol content and 8.5 weights with 15.1 weight % The PVB of the polyvinyl acetate contents of amount %.
4) there is the synthesis step of polyvinyl alcohol contracting (different) aldehyde of the polyvinyl alcohol content of 14.4 weight %
The polyvinyl alcohol Mowiol 30-92 (from the commodity of Kuraray Europe GmbH) of 100 weight portions is dissolved in In the water of 975 weight portions, it is simultaneously heated to 90 DEG C.Isobutylaldehyde and 0.06 weight portion of 68.6 weight portions is added the temperature of 40 DEG C Glutaraldehyde, and under agitation add 20% hydrochloric acid of 100 weight portions the temperature of 12 DEG C.At polyvinyl butyral resin (PVB) 69 DEG C are heated the mixture to after precipitation, and stirring 2 hours at such a temperature.After cooling to room temperature, separate PVB, use Water washing is to neutral, and is dried.The polyvinyl acetate obtaining the polyvinyl alcohol content and 8.7 weight % with 14.4 weight % contains The PVB of amount.
5) there is the synthesis step of polyvinyl alcohol contracting (different) aldehyde of the polyvinyl alcohol content of 15.6 weight %
The polyvinyl alcohol Mowiol 30-92 (from the commodity of Kuraray Europe GmbH) of 100 weight portions is dissolved in In the water of 975 weight portions, it is simultaneously heated to 90 DEG C.Isobutylaldehyde and 0.06 weight portion of 67.6 weight portions is added the temperature of 40 DEG C Glutaraldehyde, and under agitation add 20% hydrochloric acid of 100 weight portions the temperature of 12 DEG C.Sink at polyvinyl butyral resin (PVB) 69 DEG C are heated the mixture to after shallow lake, and stirring two hours at such a temperature.After cooling to room temperature, separate PVB, use water Washing is to neutral, and is dried.Obtain polyvinyl alcohol content and the polyvinyl acetate contents of 8.6 weight % with 15.6 weight % PVB.
6) there is the synthesis step of polyvinyl alcohol contracting (different) aldehyde of the polyvinyl alcohol content of 16.4 weight %
The polyvinyl alcohol Mowiol 30-92 (from the commodity of Kuraray Europe GmbH) of 100 weight portions is dissolved in In the water of 975 weight portions, it is simultaneously heated to 90 DEG C.Isobutylaldehyde and 0.06 weight portion of 66.6 weight portions is added the temperature of 40 DEG C Glutaraldehyde, and under agitation add 20% hydrochloric acid of 100 weight portions the temperature of 12 DEG C.Sink at polyvinyl butyral resin (PVB) 69 DEG C are heated the mixture to after shallow lake, and stirring two hours at such a temperature.After cooling to room temperature, separate PVB, use water Washing is to neutral, and is dried.Obtain polyvinyl alcohol content and the polyvinyl acetate contents of 8.5 weight % with 16.4 weight % PVB.
7) there is the synthesis step of polyvinyl alcohol contracting (different) aldehyde of the polyvinyl alcohol content of 17.9 weight %
The polyvinyl alcohol Mowiol 30-92 (from the commodity of Kuraray Europe GmbH) of 100 weight portions is dissolved in In the water of 975 weight portions, it is simultaneously heated to 90 DEG C.Isobutylaldehyde and 0.06 weight portion of 60.8 weight portions is added the temperature of 40 DEG C Glutaraldehyde, and under agitation add 20% hydrochloric acid of 100 weight portions the temperature of 12 DEG C.At polyvinyl butyral resin (PVB) 69 DEG C are heated the mixture to after precipitation, and stirring two hours at such a temperature.After cooling to room temperature, separate PVB, use Water washing is to neutral, and is dried.The polyvinyl acetate obtaining the polyvinyl alcohol content and 8.6 weight % with 17.9 weight % contains The PVB of amount.
The manufacture of film
By combining, manufacture by the film formed according to the sublayer formed of table 1.3G8 (2,2'-ethylenedioxybis(ethanol) .) is used as plasticising Agent.
The film of embodiment 1 to the 4 display present invention, its have polyvinyl alcohol contracting (just) butyraldehyde/polyvinyl alcohol contracting (different) butyraldehyde/ Polyvinyl alcohol contracting (just) butyraldehyde structure, has identical polyvinyl alcohol in outer layer in every case and polyvinyl acetate contains Amount.
Comparative example 1 and 2 display the film of non-invention, it has polyvinyl alcohol contracting (just) butyraldehyde/polyvinyl alcohol contracting (just) Butyraldehyde/polyvinyl alcohol contracting (just) butyraldehyde structure, has, for internal layer and outer layer, the polyvinyl alcohol provided and polyvinyl acetate contains Amount.
Table 2 shows the physical data about film.Its display is compared with the comparative example with the PVA content that may compare, originally The film of invention has preferably damping at 20 DEG C.The PVA content of the Pioloform, polyvinyl acetal used is certainly for the damping capacity of film Qualitatively.Compared with the film with low PVA content, based on identical MW content, there is the film of high PVA content to fixed temperature Poor damping is generally shown under (being 20 DEG C in this case).But in embodiment 3 and 4, contain even having high PVA Amount, the film of the present invention still shows good damping capacity at 20 DEG C.This point is the plasticizer phase due to inventive film Capacitive improve, damping maximum can towards lower temperature elapse the fact.Higher plasticizer absorption generally means that the machine of film Tool performance, such as tearing strength are impaired.But, it has now been found that compared with the comparative example 1 and 2 with similar PVA content, implement The film of the present invention in example 1 and 2 has even preferably tearing strength.

Claims (8)

1. film laminates, is become with C-shaped by least three layer A, B, and each layer comprises at least one plasticizer and at least one polyethylene Acetal, it is characterised in that
-two outer layer A with C comprise the most identical of at least one PVA-based ratio with 18.5 to 23 weight % or not Same Pioloform, polyvinyl acetal
-at least one inner layer B comprises the Pioloform, polyvinyl acetal of the PVA-based ratio with 12 to 18 weight %, and
At least one of-layer A, B or C comprises at least one polyvinyl alcohol contracting (different) aldehyde,
Two of which outer layer A, C comprise at least one the most identical or different polyvinyl alcohol contracting (different) aldehyde, and inner layer B comprise to Few a kind of polyvinyl alcohol contracting (just) aldehyde, or
Two outer layers A, C comprise at least one the most identical or different polyvinyl alcohol contracting (just) aldehyde, and inner layer B comprises at least one Plant polyvinyl alcohol contracting (different) aldehyde, or
Two outer layers A, C comprise at least one the most identical or different polyvinyl alcohol contracting (different) aldehyde, and inner layer B comprises at least one Plant polyvinyl alcohol contracting (different) aldehyde being different from layer A and C.
Film laminates the most according to claim 1, it is characterised in that at least one layer of A, B or C comprise at least one polyvinyl alcohol Contracting (just) aldehyde.
3. according to the film laminates of one of claim 1 to 2, it is characterised in that by make at least one polyvinyl alcohol with a kind of or Multiple comprise 4 to 10 carbon atoms and there is at the α position or β position of ketone group at least one branched aliphatic ketone compound reaction Obtain polyvinyl alcohol contracting (different) aldehyde.
4. according to the film laminates of one of claim 1 to 2, it is characterised in that by make at least one polyvinyl alcohol with a kind of or The multiple aliphatic nonbranched ketonic compound reaction comprising 2 to 10 carbon atoms obtains polyvinyl alcohol contracting (just) aldehyde.
5. according to the film laminates of one of claim 1 to 2, it is characterised in that according to the state by July 16th, 2002 ISO/PAS 16940, the temperature range of 17.5 to 22.5 DEG C, with this film laminates manufacture by 2 mm glass/0.8 mm films The sample that layered product/2 mm glass is formed has the first mode damping value more than 19%.
6. according to the film laminates of one of claim 1 to 2, it is characterised in that manufacture film laminates by each layer of coextrusion.
7. according to the film laminates of one of claim 1 to 2, it is characterised in that manufacture film laminates by combining each layer.
8. it is used for automobile, aircraft, boats and ships, architectural glazings according to the film laminates of one of claim 1 to 7 for manufacture, stands Glass film layered product/the glass composite of face component, or for manufacturing the purposes of photovoltaic module.
CN201210252492.4A 2011-07-22 2012-07-20 Comprise the film laminates with damping capacity of the sublayer being made up of polyvinyl alcohol contracting (different) aldehyde of plasticizer-containing Expired - Fee Related CN102886952B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11175084.0 2011-07-22
EP20110175084 EP2548728A1 (en) 2011-07-22 2011-07-22 Film laminates with damping characteristics containing a sub-layer of polyvinyl(iso)acetal containing plasticizers

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CN102886952A CN102886952A (en) 2013-01-23
CN102886952B true CN102886952B (en) 2016-11-30

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2328646A (en) * 1940-03-02 1943-09-07 Du Pont Polyvinyl butyral sheet material
US5190826A (en) * 1990-05-14 1993-03-02 Sekisui Chemical Co., Ltd. Interlayers for use in sound-insulating laminated glasses
JPH0797240A (en) * 1993-09-28 1995-04-11 Sekisui Chem Co Ltd Interlayer for laminated glass
CN101137501A (en) * 2005-03-17 2008-03-05 索罗蒂亚公司 Sound reducing polymer interlayers
CN101637991A (en) * 2008-08-01 2010-02-03 可乐丽欧洲有限责任公司 Multilayer films of plasticizer-containing polyvinyl acetal with sound-absorbing properties

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2328646A (en) * 1940-03-02 1943-09-07 Du Pont Polyvinyl butyral sheet material
US5190826A (en) * 1990-05-14 1993-03-02 Sekisui Chemical Co., Ltd. Interlayers for use in sound-insulating laminated glasses
JPH0797240A (en) * 1993-09-28 1995-04-11 Sekisui Chem Co Ltd Interlayer for laminated glass
CN101137501A (en) * 2005-03-17 2008-03-05 索罗蒂亚公司 Sound reducing polymer interlayers
CN101637991A (en) * 2008-08-01 2010-02-03 可乐丽欧洲有限责任公司 Multilayer films of plasticizer-containing polyvinyl acetal with sound-absorbing properties

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