CN106275678A - A kind of foaming bottle and preparation method thereof - Google Patents
A kind of foaming bottle and preparation method thereof Download PDFInfo
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- CN106275678A CN106275678A CN201510293020.7A CN201510293020A CN106275678A CN 106275678 A CN106275678 A CN 106275678A CN 201510293020 A CN201510293020 A CN 201510293020A CN 106275678 A CN106275678 A CN 106275678A
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Abstract
The invention provides a kind of foaming bottle and preparation method thereof, described bottle bottle wall is multiple structure, including at least one of which foaming layer and at least one of which nonfoamed layer；The most described foaming bottle is food packaging foaming bottle；Preferably bottle wall gross thickness is 0.2-0.9mm, and foaming layer gross thickness is the 40%-80% of total thickness.Fretting map bottle in the present invention, has good deflection and preferable sealing property, and the container ratio of employing sheet forming, the mode of spiral cover can be used to seal bottle.
Description
Technical field
The present invention relates to plastic bottles production field, specifically, relate to a kind of foaming bottle and preparation method thereof, this
The foaming bottle of invention is particularly suited for packaging for foodstuff.
Background technology
Along with multiformity, the personalized development of food, requirement and challenge to packaging for foodstuff also get more and more, multilamellar
High-barrier, high lucifuge functional bottle goods needs in plastic bottles field increasing.Multi-layer co-extruded system
The development of product promotes the multi-layer co-extruded or development of injection-moulded plastic forming machine.In recent years, multi-layer co-extruded or injection-moulded plastic becomes
Quickly, the most quickly, plastic bottles bottle wall accomplishes 7 layers technically from 1 layer to the type machine speed of development in technological progress simultaneously
Have been provided with the possibility realized.
And on the premise of Current resource consumes excess, as a kind of technique and the packing method of lightweight packaging, not
Change material thickness, in the case of keeping material deflection, reduce density of material, to reach to alleviate the effect of weight, carry
High insulating property, reduces production cost extremely urgent simultaneously, by adding fine foamer in bottle raw materials for production,
In heating process, heat produces CO2And H2O, forms the pore of densification in the polymer melt after plasticizing,
And reduce the effect of bottle density, complete to pack light-weighted purpose.
But it is poor that the fretting map bottle of single layer structure there are rough surface, product wall built-up, bandwagon effect when actually used
Etc. problem, it is badly in need of solving.
Summary of the invention
It is an object of the present invention to provide a kind of foaming bottle；The foaming bottle cost performance of the present invention is higher, tool
Having low grammes per square metre, high thickness, smooth surface does not has leachy advantage, is suitable for packing the food such as milk, beverage and water.
Another object of the present invention is to provide the preparation method of described foaming bottle.
For reaching above-mentioned purpose, on the one hand, the invention provides a kind of foaming bottle, described bottle bottle wall is multiple structure,
Including at least one of which foaming layer and at least one of which nonfoamed layer.
According to foaming bottle of the present invention, the most preferred described foaming bottle is food packaging foaming bottle.
According to foaming bottle of the present invention, wherein preferably bottle wall gross thickness is 0.2-0.9mm, foaming layer gross thickness
40%-80% for bottle wall gross thickness.
According to foaming bottle of the present invention, described foaming layer is fretting map polymeric layer, and its density is 0.6-0.9g/
m3。
According to foaming bottle of the present invention, described fretting map polymer is this area conventional material, for this area skill
Known to art personnel, commercially available any fretting map polymer is used equally to the present invention；Refer in particular to polymeric material be
Matrix, wherein contains abscess-size from the porous polymer material less than a micron to tens micron.
According to foaming bottle of the present invention, described bottle wall is at least three-decker, the both sides of wherein said foaming layer
It is respectively arranged with one layer of nonfoamed layer.
According to foaming bottle of the present invention, the most described nonfoamed layer outer surface is visible by naked eyes micropore.
According to foaming bottle of the present invention, preferably inside and outside two-layer nonfoamed layer accounts for nonfoamed layer gross thickness the most respectively
30%-70%.
According to foaming bottle of the present invention, described bottle wall construction is layer A/ layer B, layer A/ layer B/ layer A, layer A/
Layer B/ layer C, layer A/ layer B/ layer A/ layer C or layer A/ layer B/ layer C/ layer A arrangement；Its middle level B is foaming layer, layer
A and layer C each represents different nonfoamed layers.
According to the foaming bottle described in any one of the present invention, the material of described foaming layer and nonfoamed layer is the most independently selected
One or more mixing in high density polyethylene (HDPE), polypropylene and polystyrene.
High density polyethylene (HDPE) of the present invention is this area conventional material, is often referred to density at 0.93-0.96g/m3's
Polythene material.Any commercially available high-density polyethylene material meeting above-mentioned standard is used equally to the present invention.I.e. this area
The high-density polyethylene material being commercially available for preparing bottle (the most food packaging bottle) is used equally to the present invention.
Polypropylene of the present invention and polystyrene are this area conventional material, any commercially available polypropylene and polystyrene
Material is used equally to the present invention.I.e. this area is commercially available for preparing poly-the third of bottle (the most food packaging bottle)
Alkene and polystyrene material are used equally to the present invention.
According to the foaming bottle described in any one of the present invention, described foaming layer is to prepare with carbonate foaming agent.
The most preferred described carbonate is sodium bicarbonate.
Wherein said foam process can be prior art conventional method, prepares according to the foam process of existing routine
Obtain the foaming layer for the present invention.
The most described foaming layer is fretting map polymeric layer.
According to the foaming bottle described in any one of the present invention, described foaming bottle by each raw material by including extrusion blow or note
The method of stretch blow step prepares.
According to the foaming bottle described in any one of the present invention, described foaming bottle is prepared by the method comprised the steps
Obtain: the raw material of each layer is stirred in respective mixed-hopper in proportion, the most after drying, then uses extruding machine
The each layer raw material distributed is expressed in same allotter, extrudes through die orifice, shape and i.e. obtain product.
According to foaming bottle of the present invention, during preparation, extruding machine body temperature controls at 170-250 DEG C.
On the other hand, present invention also offers the preparation method of described foaming bottle, described method comprises the steps:
The raw material of each layer is stirred in respective mixed-hopper in proportion, the most after drying, then will distribution with extruding machine
Good each layer raw material is expressed in same allotter, extrudes through die orifice, shapes and i.e. obtain product.
According to preparation method of the present invention, described foaming layer is to prepare with sodium bicarbonate foaming agent.
In sum, the invention provides a kind of foaming bottle and preparation method thereof.The foaming bottle of the present invention have as
Lower advantage:
1, the present invention can the rigidity of equilibrium product and toughness on demand, make cost more optimize, fall can be recycled
Low production cost；
2, the container that the present invention prepares relative to sheet material is more readily processed, and reduces processing technique, shortens the production cycle,
And less demanding to process equipment, it is not necessary to special inflation foam device；
3, the fretting map bottle in the present invention, has good deflection and preferable sealing property, becomes with using sheet material
The container ratio of type, can use the mode of spiral cover to seal bottle.
4, the bottle of same material same thickness, the fretting map bottle of the present invention is slower than the heat transfer of unexpanded bottle, dress
Temperature drift or food on the low side, can avoid scalding one's hand or freezing cold.
Accompanying drawing explanation
Fig. 1 is bottle schematic diagram；
Fig. 2 is bottle bottle wall construction partial enlarged drawing；Wherein 1 is outer layer, and 2 is fretting map layer, and 3 is internal layer；
Fig. 3 is bottle bottle wall microscope enlarged drawing.
Detailed description of the invention
Implementation process and the beneficial effect of generation of the present invention is described in detail, it is intended to help to read below by way of specific embodiment
Reader is more fully understood that essence and the feature of the present invention, not as can the restriction of practical range to this case.
Embodiment 1
Bottle uses the technique of extrusion blow to produce, and bottle wall arranges according to layer A/ layer B, and its middle level A is the non-foamed of outer layer
Layer, the thickness of layer A accounts for the 20% of gross thickness, and layer B is foaming layer, accounts for the 80% of gross thickness, and bottle gross thickness is
0.5mm.Bottles vertical pressure-bearing is 210N.
Described layer A is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, color masterbatch 1；
Described layer B is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, color masterbatch 0.5,
Sodium bicarbonate foaming agent 1.5；
The high density polyethylene (HDPE) used in described layer A, layer B has characteristics that at 190 DEG C, and 2160g's is negative
Under lotus, mensuration melt index is 0.33g/10min；Melt temperature is 132 DEG C, rigidity is 8045/2。
Preparation method is: use twin screw bottle blowing machine, the raw material that every layer is used in respective mixed-hopper in proportion
Stirring, the most after drying, three bringing-up section temperature that extruding machine is extruded A layer screw rod control respectively 175
DEG C, 180 DEG C, 180 DEG C, extrusion B layer screw rod three bringing-up section temperature control respectively 175 DEG C, 210 DEG C, 180
DEG C, the more each layer raw material distributed is expressed into die head, die head temperature controls at 180 DEG C, extrudes to die orifice through die head,
Blowing is shaped and is i.e. obtained this goods.
As a example by the embodiment 1 prepared wall thickness bottle as 0.5mm, if filling the pure water of 4 DEG C in bottle, it is placed on
In the water-bath of 60 DEG C, water in bottle temperature often raises slower than unexpanded bottle 4 seconds of bottle of time foaming once.
Embodiment 2
Bottle uses the technique of extrusion blow to produce, and bottle wall arranges according to layer A/ layer B/ layer A, and its middle level A is the non-of outer layer
Foaming layer, the thickness of layer A accounts for the 20% of gross thickness, and layer B is foamed core layer, accounts for the 80% of gross thickness, and bottle is total
Thickness is 0.6mm.Obtained by bottle as it is shown in figure 1, bottle wall construction is as in figure 2 it is shown, bottle wall foamed core layer microcosmic
Figure is as shown in Figure 3.Bottles vertical pressure-bearing is 270N.
Described layer A is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, color masterbatch 1；
Described layer B is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, color masterbatch 0.5,
Foaming agent 1.5；
The high density polyethylene (HDPE) used in described layer A, layer B has characteristics that at 190 DEG C, and 2160g's is negative
Under lotus, mensuration melt index is 0.33g/10min；Melt temperature is 132 DEG C, rigidity is 8045/2。
Preparation method is: use twin screw bottle blowing machine, raw material that every layer is used in respective mixed-hopper in proportion
Stirring, the most after drying, three bringing-up section temperature that extruding machine is extruded A layer screw rod control respectively 175
DEG C, 180 DEG C, 180 DEG C, extrusion three bringing-up section temperature of B layer screw rod control respectively 175 DEG C, 210 DEG C, 180
DEG C, the more each layer raw material distributed is expressed into die head, die head temperature controls at 180 DEG C, extrudes to die orifice through die head,
Blowing is shaped and is i.e. obtained this goods.
As a example by the embodiment 2 prepared wall thickness bottle as 0.6mm, if filling the pure water of 4 DEG C in bottle, it is placed on
In the water-bath of 60 DEG C, water in bottle temperature often raises slower than unexpanded bottle 4.5 seconds of bottle of time foaming once.
Embodiment 3
Bottle uses the technique of extrusion blow to produce, and bottle wall arranges according to layer A/ layer B/ layer C, and its middle level A is the non-of outer layer
Foaming layer, the thickness of layer A accounts for the 15% of gross thickness, and layer B is foamed core layer, accounts for the 75% of gross thickness, and layer C is
The nonfoamed layer of internal layer, the thickness of layer C accounts for the 10% of gross thickness, and bottle gross thickness is 0.6mm.Bottles vertical holds
Pressure is 270N.
Described layer A is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, color masterbatch 0.5；
Described layer B is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, color masterbatch 0.5,
Foaming agent 2；
Described layer C is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, color masterbatch 0.5；
The high density polyethylene (HDPE) used in described layer A, layer B, layer C has characteristics that at 190 DEG C, 2160g
Load under, mensuration melt index is 0.31g/10min；Melt temperature is 134 DEG C, rigidity is 9021/2。
Preparation method is: use three screw rod bottle blowing machines, the raw material that every layer is used in respective mixed-hopper in proportion
Stirring, the most after drying, three bringing-up section temperature that extruder screw is extruded A layer screw rod control respectively
175 DEG C, 180 DEG C, 180 DEG C, extrusion three bringing-up section temperature of B layer screw rod control respectively 175 DEG C, 210 DEG C, 180
DEG C, three bringing-up section temperature of extrusion C layer screw rod control respectively at 175 DEG C, 180 DEG C, 180 DEG C, then will distribute
Each layer raw material be expressed into die head, die head temperature controls at 180 DEG C, and through die head extrusion to die orifice, blowing is shaped and get final product
These goods.
As a example by the embodiment 3 prepared wall thickness bottle as 0.6mm, if filling the pure water of 4 DEG C in bottle, it is placed on
In the water-bath of 60 DEG C, water in bottle temperature often raises slower than unexpanded bottle 4.5 seconds of bottle of time foaming once.
Embodiment 4
Bottle uses the technique of extrusion blow to produce, and bottle wall arranges according to layer A/ layer B/ layer A/ layer C, and its middle level A is outer layer
Nonfoamed layer, the thickness of layer A accounts for the 15% of gross thickness, and layer B is foamed core layer, accounts for the 75% of gross thickness, layer
C is the nonfoamed layer of internal layer, and the thickness of layer C accounts for the 10% of gross thickness, and bottle gross thickness is 0.6mm.Bottle hangs down
Straight pressure-bearing is 250N.
Described layer A is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, color masterbatch 0.5；
Described layer B is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, color masterbatch 0,
Foaming agent 1.5；
Described layer C is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, color masterbatch 0.5；
The high density polyethylene (HDPE) used in described layer A, layer B, layer C has characteristics that at 190 DEG C, 2160g
Load under, mensuration melt index is 0.31g/10min；Melt temperature is 134 DEG C, rigidity is 9021/2。
Preparation method is: use three screw rod bottle blowing machines, the raw material that every layer is used in respective mixed-hopper in proportion
Stirring, the most after drying, three bringing-up section temperature that extruder screw is extruded A layer screw rod control respectively
175 DEG C, 180 DEG C, 180 DEG C, extrusion three bringing-up section temperature of B layer screw rod control respectively 175 DEG C, 210 DEG C, 180
DEG C, three bringing-up section temperature of extrusion C layer screw rod control respectively at 175 DEG C, 180 DEG C, 180 DEG C, then will distribute
Each layer raw material be expressed into die head, die head temperature controls at 180 DEG C, and through die head extrusion to die orifice, blowing is shaped and get final product
These goods.
As a example by the embodiment 4 prepared wall thickness bottle as 0.6mm, if filling the pure water of 4 DEG C in bottle, it is placed on
In the water-bath of 60 DEG C, water in bottle temperature often raises slower than unexpanded bottle 4.5 seconds of bottle of time foaming once.
Embodiment 5
Bottle uses the technique of extrusion blow to produce, and bottle wall arranges according to layer A/ layer B/ layer C/ layer A, and its middle level A is outer layer
Nonfoamed layer, the thickness of A accounts for the 10% of gross thickness the most layer by layer, and the thickness of interior-layer layer A accounts for the 10% of gross thickness,
Layer B is foamed core layer, accounts for the 50% of gross thickness, and layer C is the nonfoamed layer of internal layer, and the thickness of layer C accounts for gross thickness
30%, bottle gross thickness is 0.8mm.Bottles vertical pressure-bearing is 260N.
Described layer A is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, color masterbatch 0.5；
Described layer B is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100, foaming agent 2；
Described layer C is made up of the raw material of following weight parts: high density polyethylene (HDPE) (HDPE) 100 (wherein adds
The secondary material of 50).
The high density polyethylene (HDPE) used in described layer A, layer B, layer C has characteristics that at 190 DEG C, 2160g
Load under, mensuration melt index is 0.31g/10min；Melt temperature is 134 DEG C, rigidity is 9021/2；
The secondary material used in described layer C, for layer A, layer B, the regrinding-material of layer C same physical index.
Preparation method is: use three screw rod bottle blowing machines, the raw material that every layer is used in respective mixed-hopper in proportion
Stirring, the most after drying, three bringing-up section temperature that extruder screw is extruded A layer screw rod control respectively
175 DEG C, 180 DEG C, 180 DEG C, extrusion three bringing-up section temperature of B layer screw rod control respectively 175 DEG C, 210 DEG C, 180
DEG C, three bringing-up section temperature of extrusion C layer screw rod control respectively at 175 DEG C, 185 DEG C, 180 DEG C, then will distribute
Each layer raw material be expressed into die head, die head temperature controls at 180 DEG C, and through die head extrusion to die orifice, blowing is shaped and get final product
These goods.
As a example by the embodiment 5 prepared wall thickness bottle as 0.8mm, if filling the pure water of 4 DEG C in bottle, it is placed on
In the water-bath of 60 DEG C, water in bottle temperature often raises slower than unexpanded bottle 5 seconds of bottle of time foaming once.
Embodiment 6
Bottle uses the technique of extrusion blow to produce, and bottle wall arranges according to layer A/ layer B, and its middle level A is the non-foamed of outer layer
Layer, the thickness of layer A accounts for the 20% of gross thickness, and layer B is foaming layer, accounts for the 80% of gross thickness, and bottle gross thickness is
0.5mm.Bottles vertical pressure-bearing is 270N.
Described layer A is made up of the raw material of following weight parts: polypropylene (PP) 100, color masterbatch 1；
Described layer B is made up of the raw material of following weight parts: polypropylene (PP) 100, color masterbatch 0.5, bicarbonate
Sodium foaming agent 1.5；
The polypropylene used in described layer A, layer B has characteristics that at 190 DEG C, under the load of 2160g,
Mensuration melt index is 0.38g/10min；Melt temperature is 165 DEG C, rigidity is 11412/2。
Preparation method is: use twin screw bottle blowing machine, the raw material that every layer is used in respective mixed-hopper in proportion
Stirring, the most after drying, three bringing-up section temperature that extruding machine is extruded A layer screw rod control respectively 185
DEG C, 195 DEG C, 190 DEG C, extrusion B layer screw rod three bringing-up section temperature control respectively 185 DEG C, 210 DEG C, 190
DEG C, the more each layer raw material distributed is expressed into die head, die head temperature controls at 185 DEG C, extrudes to die orifice through die head,
Blowing is shaped and is i.e. obtained this goods.
As a example by the embodiment 6 prepared wall thickness bottle as 0.5mm, if filling the pure water of 4 DEG C in bottle, it is placed on
In the water-bath of 60 DEG C, water in bottle temperature often raises slower than unexpanded bottle 3.5 seconds of bottle of time foaming once.
Embodiment 7
Bottle uses the technique of extrusion blow to produce, and bottle wall arranges according to layer A/ layer B/ layer C/ layer A, and its middle level A is outer layer
Nonfoamed layer, the thickness of A accounts for the 10% of gross thickness the most layer by layer, and the thickness of interior-layer layer A accounts for the 10% of gross thickness,
Layer B is foamed core layer, accounts for the 50% of gross thickness, and layer C is the nonfoamed layer of internal layer, and the thickness of layer C accounts for gross thickness
30%, bottle gross thickness is 0.5mm.Bottles vertical pressure-bearing is 310N.
Described layer A is made up of the raw material of following weight parts: polypropylene (PP) 100, color masterbatch 0.5；
Described layer B is made up of the raw material of following weight parts: polypropylene (PP) 100, foaming agent 2；
Described layer C is made up of the raw material of following weight parts: polypropylene (PP) 100 (wherein adds the secondary of 50
Material)；
The polypropylene used in described layer A, layer B, layer C has characteristics that at 190 DEG C, and 2160g's is negative
Under lotus, mensuration melt index is 0.38g/10min；Melt temperature is 165 DEG C, rigidity is 11412/2；
The secondary material used in described layer C, for layer A, layer B, the regrinding-material of layer C same physical index.
Preparation method is: use three screw rod bottle blowing machines, and the raw material used every layer stirs in respective mixed-hopper in proportion
Mix uniformly, the most after drying, extruder screw is extruded three bringing-up section temperature of A layer screw rod control respectively 185 DEG C,
195 DEG C, 190 DEG C, extrusion three bringing-up section temperature of B layer screw rod control at 185 DEG C, 210 DEG C, 190 DEG C respectively, extrusion
Three bringing-up section temperature of C layer screw rod control respectively at 185 DEG C, 195 DEG C, 185 DEG C, the more each layer raw material that will distribute
Being expressed into die head, die head temperature controls at 180 DEG C, and through die head extrusion to die orifice, blowing is shaped and i.e. obtained this goods.
As a example by the embodiment 7 prepared wall thickness bottle as 0.5mm, if filling the pure water of 4 DEG C in bottle, it is placed on
In the water-bath of 60 DEG C, water in bottle temperature often raises slower than unexpanded bottle 3 seconds of bottle of time foaming once.
Embodiment 8
Bottle uses the technique of extrusion blow to produce, and bottle wall arranges according to layer A/ layer B, and its middle level A is the non-foamed of outer layer
Layer, the thickness of layer A accounts for the 20% of gross thickness, and layer B is foaming layer, accounts for the 80% of gross thickness, and bottle gross thickness is
0.5mm.Bottles vertical pressure-bearing is 240N.
Described layer A is made up of the raw material of following weight parts: polypropylene (PP) 80, high density polyethylene (HDPE) (HDPE)
20, color masterbatch 1；
Described layer B is made up of the raw material of following weight parts: polypropylene (PP) 80, high density polyethylene (HDPE) (HDPE)
20, color masterbatch 0.5, sodium bicarbonate foaming agent 1.5；
The high density polyethylene (HDPE) used in described layer A, layer B has characteristics that at 190 DEG C, and 2160g's is negative
Under lotus, mensuration melt index is 0.33g/10min；Melt temperature is 132 DEG C, rigidity is 8045/2；
The polypropylene used in described layer A, layer B has characteristics that at 190 DEG C, under the load of 2160g,
Mensuration melt index is 0.38g/10min；Melt temperature is 165 DEG C, rigidity is 11412/2。
Preparation method is: use twin screw bottle blowing machine, the raw material that every layer is used in respective mixed-hopper in proportion
Stirring, the most after drying, three bringing-up section temperature that extruding machine is extruded A layer screw rod control respectively 175
DEG C, 190 DEG C, 180 DEG C, extrusion B layer screw rod three bringing-up section temperature control respectively 175 DEG C, 210 DEG C, 180
DEG C, the more each layer raw material distributed is expressed into die head, die head temperature controls at 180 DEG C, extrudes to die orifice through die head,
Blowing is shaped and is i.e. obtained this goods.
As a example by the embodiment 8 prepared wall thickness bottle as 0.5mm, if filling the pure water of 4 DEG C in bottle, it is placed on
In the water-bath of 60 DEG C, water in bottle temperature often raises slower than unexpanded bottle 3 seconds of bottle of time foaming once.
Claims (10)
1. a foaming bottle, it is characterised in that described bottle bottle wall is multiple structure, including at least one of which
Foaming layer and at least one of which nonfoamed layer；The most described foaming bottle is food packaging foaming bottle；Preferably bottle wall is total
Thickness is 0.2-0.9mm, and foaming layer gross thickness is a bottle 40%-80% for wall gross thickness.
Foaming bottle the most according to claim 1, it is characterised in that described foaming layer is fretting map polymer
Layer, its density is 0.6-0.9g/m3。
Foaming bottle the most according to claim 1, it is characterised in that described bottle wall is at least three-decker,
The both sides of wherein said foaming layer are respectively arranged with one layer of nonfoamed layer；The most described nonfoamed layer outer surface is visible by naked eyes micro-
Hole；The most inside and outside two-layer nonfoamed layer accounts for the 30%-70% of nonfoamed layer gross thickness the most respectively.
Foaming bottle the most according to claim 1, it is characterised in that described bottle wall construction be layer A/ layer B,
Layer A/ layer B/ layer A, layer A/ layer B/ layer C, layer A/ layer B/ layer A/ layer C or layer A/ layer B/ layer C/ layer A arrangement；Its
Middle level B is foaming layer, and layer A and layer C each represents different nonfoamed layers.
5. according to the foaming bottle described in Claims 1 to 4 any one, it is characterised in that described foaming layer and non-
The material of foaming layer is each independently selected from one or more in high density polyethylene (HDPE), polypropylene and polystyrene
Mixing.
6. according to the foaming bottle described in Claims 1 to 4 any one, it is characterised in that described foaming layer be with
Carbonate is that foaming agent prepares；The most described carbonate is sodium bicarbonate.
7. according to the foaming bottle described in Claims 1 to 4 any one, it is characterised in that described foaming bottle by
Each raw material is prepared by the method including extrusion blow or note stretch blow step.
Foaming bottle the most according to claim 7, it is characterised in that described foaming bottle walks as follows by including
Rapid method prepares: stirred in proportion in respective mixed-hopper by the raw material of each layer, the most after drying,
With extruding machine, each layer raw material distributed is expressed in same allotter again, extrudes through die orifice, shape and i.e. obtain product；
When preferably preparing, extruding machine body temperature controls at 170-250 DEG C.
9. described in claim 7 or 8 foaming bottle preparation method, it is characterised in that described method include as
Lower step: the raw material of each layer is stirred in respective mixed-hopper in proportion, the most after drying, then uses extrusion molding
The each layer raw material distributed is expressed in same allotter by machine, extrudes through die orifice, shapes and i.e. obtain product.
Preparation method the most according to claim 9, it is characterised in that described foaming layer is to send out with carbonate
Infusion prepares.
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| CN201510293020.7A CN106275678A (en) | 2015-06-02 | 2015-06-02 | A kind of foaming bottle and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283972A (en) * | 2017-06-30 | 2017-10-24 | 湖南中南楷思科技发展有限公司 | A kind of composite plastic of polypropylene, plastic bowl and preparation method thereof |
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