CN100544662C - Biodegradation type insulated cleaning towel - Google Patents
Biodegradation type insulated cleaning towel Download PDFInfo
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- CN100544662C CN100544662C CNB2006100621835A CN200610062183A CN100544662C CN 100544662 C CN100544662 C CN 100544662C CN B2006100621835 A CNB2006100621835 A CN B2006100621835A CN 200610062183 A CN200610062183 A CN 200610062183A CN 100544662 C CN100544662 C CN 100544662C
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- cleaning towel
- type insulated
- biodegradation type
- towel
- cloth
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Abstract
The present invention relates to a kind of biodegradation type insulated cleaning towel, comprise cloth, be evenly distributed on the cleaning agent on the cloth, and described cloth is to be made by the fiber of polylactic resin, and described cleaning agent comprises the surfactant of volatile organic solvent and nonionic.Biodegradation type insulated cleaning towel of the present invention has following advantage: its insulation clean-up performance and traditional insulated cleaning towel quite or more excellent and have biodegradation and eco-friendly advantage.
Description
Technical field
The present invention relates to a kind of chemical products that is used for power industry and electronic equipment, more particularly, the present invention relates to a kind of insulation cleaning chemistry goods that are used for power industry and electronic equipment.
Background technology
For the permanently effective operation that guarantees power industry and electronic equipment, prevent that fault from taking place, must often clean insulating properties to their device and the surface that has a common boundary of conductor and air with maintenance device and conductor.
For example: the high-tension bus-bar cable must carry out conscientious careful insulation cleaning to the cable insulation laminar surface in the assembling connection procedure, prevent that semiconductive particle and dust etc. from sticking to surface of insulating layer, thereby reduce the insulating capacity of insulating barrier.
Again for example: operating power equipment, electronic equipment, communication equipment and household electrical appliance etc., because the micronic dust in the environment is deposited on the external insulation surface and forms one deck dunghill, comprise metal particle, oil, dust in the dunghill and be subjected to the materials such as salt, acid, bases of tidal energy dissolving, when running into wet conditions such as mist, dew and drizzle, dunghill makes moist, and electricity is led increase, decreasing insulating, the danger that causes accident is just arranged, therefore must regularly clean and the cleaning that insulate them.
What at present, power industry article and electronic equipment are implemented that above-mentioned insulation cleans main use is insulated cleaning towel.And traditional insulated cleaning towel is the polypropylene spun-bonded non-woven fabrics that is immersed in the insulation impregnant usually.This product is sealed in the aluminium foil bag before using, and tears aluminium foil bag during use, takes out moistening cleaning tissue, operates getting final product according to operation instruction.Because aluminium foil is arranged in the sealing bag, and the sealing bag of disassembling is not dirty, thus enterprise and individual to recovery all have economically enthusiasm, do not have the recovery problem of usefulness again.
The polypropylene spun-bonded non-woven fabrics of tradition insulated cleaning towel is to be primary raw material with the acrylic resin, is formed by the directly auxilliary net hot adhesion of polypropylene spinning.It is fibrous by 100%, the tool porous, and gas permeability is good, and intensity is higher than general short fiber product, and vertical, horizontal intensity is close, about 160 ℃ of softening points, the product pliability is moderate.Use nonwoven cloth material later very dirty, be difficult to clean, reclaiming does not have economic stimuli yet.
But, the moistening cleaning tissue that traditional nonwoven is made, maximum shortcoming is exactly not environmental protection, can't biodegradation.Behind this moistening cleaning tissue of a large amount of uses, can be at a large amount of discarded moistening cleaning tissue that is stained with dirt of the on-the-spot generation of construction cleaning, along with the enhancing of people's environmental consciousness, seek the environment-friendly degradable moistening cleaning tissue and proposed by relevant departments, and in the technology of exported product and environmental requirement, make cogent provision.Yet, up to the present, do not see the open source information and the product of the biodegradable insulated cleaning towel of energy both at home and abroad as yet.
Summary of the invention
Above-mentioned shortcoming at prior art, the objective of the invention is to provide a kind of biodegradation type insulated cleaning towel, have following advantage: its insulation clean-up performance and traditional insulated cleaning towel quite or more excellent and have biodegradation and eco-friendly advantage.
For this reason, technical solution of the present invention is a kind of biodegradation type insulated cleaning towel, this insulated cleaning towel comprises cloth, is evenly distributed on the cleaning agent on the cloth, and described cloth is to be made by the fiber of polylactic resin, and described cleaning agent comprises the surfactant of volatile organic solvent and nonionic; Described polylactic resin comprises 60-90% laevoisomer, 10-40% mesoisomer, and its weight average molecular weight range is 10-40 ten thousand.Described polylactic resin has following character: the melting range scope is the 160-185 degree, and glass temperature range is the 55-58 degree, and fracture strength is greater than 15MPa.
Insulated cleaning towel of the present invention adopts the fiber of polylactic resin to replace traditional polypropylene spun-bonded non-woven fabrics, the ester bond that has easy hydrolysis on the polymeric chain of PLA, and the end carboxyl of PLA has autocatalysis to the hydrolysis of ester bond, and its degradation rate is easy to obtain the influence and the promotion of hydrolysis environment; And PLA is a heat-labile compound, and also relatively more responsive to temperature, its degradation rate is easy to be subjected to the influence and the promotion of environment temperature, can degrade down at high temperature (200 degree), and molecular weight significantly reduces.For example: PLA can resolve into H in 10-20 days under the compost bacterial action
2O and CO
2In 60 ℃ aqueous slkali, just began degraded in 1 hour, traditional PLA (PLA) just began slow degraded in 18 months under common condition.Adopt the polylactic resin of suitable configuration, under the prerequisite that guarantees suitable biodegradability, can guarantee fully that the polymer crystallization that suits is an excellent mechanical intensity, and then also can make PLA and other natural fiber or staple fibre blending final products also have biodegradability.
Today in the world, several biodegradable plastics kinds have been arranged, wherein mainly comprise polyhydroxyalkanoate or title " polyhydroxycarboxyliacid acid ester " (PHA), PLA (PLA), full starch plastic and plastic of soybean protein etc.And the natural decomposition of the cloth made from PLA can be divided into two types: a class material directly biodegradation after abandoning, and another kind of material natural decomposition after processing.The former buries after use in the process by natural decomposition, and the latter is underground decomposition in agricultural or civil engineering field mainly.
Wherein, polyhydroxyalkanoate (PHA) must adopt microbial fermentation technology, is biological degredation plastic with the agricultural product feedstock conversion of corn and so on.Owing to have many premium properties such as biodegradability, biocompatibility, piezoelectricity, this plastics are used widely at aspects such as various fields such as biological degradability packaging material, tissue engineering material and electricity materials.This type of high molecular synthetic material has 100 Yu kinds at present.The microbial gene synthetic relevant with PHA come out by the clone more and more, by to the molecular evolution mutagenesis of these microbial genes and the exchange of gene, might obtain the bacterial classification of high yield PHA and new PHA.The high molecule plastic that adopts PHA to process can be degraded into small-molecule substances such as carbon dioxide, water gradually by several aquatic bacterias.But, the synthetic process modification of PHA microorganism is but lagged far behind the exploitation of PHA new material.The real mass-produced PHA of realization does not realize producing in batches, has limited its application and development.
And the agricultural product fermenting raw materials that adopts corn and so on is produced lactic acid and then adopt comparatively traditional chemical engineering unit operation to produce PLA (PLA), this PLA (PLA) process route, equipment and the relatively easy realization of parameter control, and, because PLA factory can not exhaust natural resources, thereby this raw material of the acceptant employing of the downstream product manufacturer of PLA develops new product, thereby PLA production technology and product are more prone to implement and promote.
Though compare with the nonwoven that non-biodegradable material is made at present, it is high that PLA nonwoven cost is wanted, and promotes the use of thereby influence it.But in the long run, the source of the raw materials for production of China's PLA---corn is abundant, has a extensive future in China development PLA industrial market.The present invention uses biodegradable PLA to make nonwoven, and PLA will be saved energy consumption 30%-50% as a kind of high molecular polymer that can regenerate naturally and obtain than the polymer that with the oil product is raw material production.Before non-renewable petroleum resources dry spells arrived, the oil and the derivative market price thereof went up, and the reproducible poly-lactic acid products of raw material will show environment and resources advantage that it is powerful day by day.
The catabolite of laevoisomer L-PLA is the hypocrystalline macromolecule, makes easily, can be by the biological and complete metabolism of human body, and nontoxic, inorganization is reacted, and physical strength, toughness are all good, are the polylactic resin of better configuration.Mesoisomer is the left and right noncrystalline macromolecule that revolves the isomers combination, can accelerated degradation.
And cleaning agent of the present invention mainly comprises the surfactant of volatile organic solvent and nonionic, therefore has the following advantages: 1, do not damage the surface that is cleaned.2, wide soluble end and strong dissolving power.3, dielectric voltage withstand, volatility are good.4, the volatilization residue is few.This shows that cleaning agent of the present invention is through guaranteeing that the insulation clean-up performance of insulated cleaning towel integral body also can guarantee its eco-friendly performance.
To sum up, insulated cleaning towel of the present invention had not only had good physical property and insulation clean-up performance, but also had had good biodegradation and eco-friendly advantage.
Be the above-mentioned principal advantages of further optimization and refinement goods of the present invention, the present invention improves and also comprises:
The component of described organic solvent comprise as next the group organic matter in any two or three: aliphatic hydrocarbon, fatty alcohol, fatty acid ester.
The percentage by weight of each component is in the described organic solvent: aliphatic hydrocarbon 5-65%, fatty alcohol 15-95%, fatty acid ester 0-20%.
In the described cleaning agent, be radix with the total amount of described organic solvent, the weight proportion of described surfactant is 0.5-1.0%.
Because when insulated cleaning towel used, cleaning agent comprises an amount of volatilizable insulation impregnant.Before use, must guarantee that these solvents are non-volatile; And according to normal instructions for use, the time limit that product effectively uses can not be shorter than 2 years, and therefore under the moderate prerequisite of insulation impregnant volatility, the present invention further adopts and packs.And the requirement that the structural material and the thickness thereof of aluminium foil bag is had the comparison strictness.
For this reason, described insulated cleaning towel also comprises the sealing bag that plastics are compound, and described cloth and the sealed bag of described cleaning agent exist in the sealing bag.
Described sealing bag comprise aluminium foil the intermediate layer, be compounded in the internal layer and the skin of the plastics on two sides, aluminium foil intermediate layer.
Described outer field material is BOPET (biaxial stretching polyester) or BOPP (Biaxially oriented polypropylene), and the material of described internal layer is that LDPE (low density polyethylene (LDPE)), HDPE (high density polyethylene (HDPE)), PP (polypropylene) are wherein a kind of.
From the structure of aluminium foil bag, cladding material should have printing performance and optical property preferably; The intensity height is difficult for scuffing, sanding; Characteristics such as heat resistance is good; Be fit to be used as having of cladding material: BOPP, BOPET film, metallized film, paper and glassine paper etc.
Middle layer material should have barrier property preferably, as low to the transmitance of gas, smell, aqueous vapor, and energy shading etc., layer material has in being fit to do: aluminium foil, metallized film etc.
It is good that inner layer material should have heat sealability; Tasteless, nontoxic; Oil resistant, water-fast, characteristics such as chemical proofing is good; Inner layer material commonly used has: LDPE, HDPE, CPP (cast polypropylene), PVDC (polyvinylidene chloride), EVA (ethene-vinyl acetate copolymer) film, Ionomer film etc.
The research of process several years and on probation, the sealing bag composite construction that the present invention selects for use has following several: BOPET (outward)/AL (aluminium foil)/LDPE (interior), BOPP (outward)/AL (aluminium foil)/HDPE (interior), BOPP (outward)/AL (aluminium foil)/PP (interior) etc., and wherein BOPP, BOPET film provide higher intensity, printing and the transparency for aluminium foil bag; Aluminium foil provides rigidity and barrier; HDPE, LDPE and PP film are made inner layer material and are then had heat sealability and chemical stability preferably.
And then described outer field THICKNESS CONTROL is at 10-20 μ m, and the THICKNESS CONTROL of described aluminium foil is at 5-10 μ m, and the THICKNESS CONTROL of described internal layer is at 50-100 μ m.
Through experiment confirm: insulated cleaning towel of the present invention can be broken through European Union's technology and environmental protection barrier, can satisfy the requirement of the RoHS of European Union (The Restriction of the use of certain Hazardous substancesin Electrical and Electronic Equipment i.e. " some harmful substance instruction is used in restriction in electronic electric equipment ") instruction.This proves that fully Biodegradable insulated cleaning towel of the present invention is to meet the modern demand for development and the guiding of recycling economy in the world.
The invention will be further described below in conjunction with specific embodiment.
The specific embodiment
Insulated cleaning towel embodiment 1:
1) sealing bag composite construction:
Material-thickness, distinguish each layer by expression is outer certainly from left to right to the order of internal layer and with oblique line:
BOPET-12/A1-7/LDPE-60 (the thickness arithemetic unit is: μ m),
The size dimension of sealing bag (mm): 950 * 750,
2) composition of insulation cleaning agent:
Organic solvent:
N-hexane 15% (mass percent, down together),
Isopropyl alcohol 75%,
Propoxylation isopropyl alcohol 10%;
Surfactant:
NPE 0.6% (the organic solvent quality is 100),
The content (gram) of solvent in every bag of insulated cleaning towel product: 〉=5.0,
The volatilization time (second) of solvent in every insulated cleaning towel: 〉=20.0;
3) cloth:
The material of PLA spun-bonded non-woven fabrics and specification: (white, 50 gram/rice
2), comprise 80% laevoisomer, 20% mesoisomer in the polyester material of PLA spun-bonded non-woven fabrics.Weight average molecular weight range is about 350,000; The melting range scope is the 170-180 degree, and glass temperature range is 56 degree, fracture strength 30MPa.
The size dimension of every nonwoven moistening cleaning tissue (mm): 180 ± 5 * 200 ± 5,
The volatilization residue (gram) of every insulated cleaning towel :≤0.05,
Throw aside nonwoven under the compost state, can decompose disappearance substantially in 15 days.
Insulated cleaning towel embodiment 2:
1) sealing bag composite construction:
Material-thickness, distinguish each layer by expression is outer certainly from left to right to the order of internal layer and with oblique line:
BOPP-16/A1-6/HDPE-70 (the thickness arithemetic unit is: μ m),
The size dimension of sealing bag (mm): 950 * 750,
2) composition of insulation cleaning agent:
Organic solvent:
Normal octane 45% (mass percent, down together),
Isopropyl alcohol 45%,
Ethyl acetate 10%;
Surfactant:
NPE 0.8% (the organic solvent quality is 100);
The content (gram) of solvent in every bag of insulated cleaning towel product: 〉=5.0,
The volatilization time (second) of solvent in every insulated cleaning towel: 〉=20.0;
3) cloth:
The material of PLA spun-bonded non-woven fabrics and specification: (white, 70 gram/rice
2), comprise 70% laevoisomer, 30% mesoisomer in the polyester material of PLA spun-bonded non-woven fabrics.Weight average molecular weight range is about 250,000; The melting range scope is the 165-170 degree, and glass temperature range is 56 degree, fracture strength 20MPa.
The size dimension of every nonwoven moistening cleaning tissue (mm): 180 ± 5 * 200 ± 5,
The volatilization residue (gram) of every insulated cleaning towel :≤0.05,
Throw aside nonwoven under the compost state, can decompose disappearance substantially in 12 days
Claims (8)
1, a kind of biodegradation type insulated cleaning towel, this insulated cleaning towel comprises cloth, is evenly distributed on the cleaning agent on the cloth, it is characterized in that: described cloth is to be made by the fiber of polylactic resin, and described cleaning agent comprises the surfactant of volatile organic solvent and nonionic; Described polylactic resin comprises 60-90% laevoisomer, 10-40% mesoisomer, and its weight average molecular weight range is 10-40 ten thousand; Described polylactic resin has following character: the melting range scope is the 160-185 degree, and glass temperature range is the 55-58 degree, and fracture strength is greater than 15MPa.
2, biodegradation type insulated cleaning towel as claimed in claim 1 is characterized in that: the component of described organic solvent comprise as next the group organic matter in any two or three: aliphatic hydrocarbon, fatty alcohol, fatty acid ester.
3, biodegradation type insulated cleaning towel as claimed in claim 1 is characterized in that: the percentage by weight of each component is in the described organic solvent: aliphatic hydrocarbon 5-65%, fatty alcohol 15-95%, fatty acid ester 0-20%.
4, biodegradation type insulated cleaning towel as claimed in claim 1 is characterized in that: in the described cleaning agent, be radix with the total amount of described organic solvent, the weight proportion of described surfactant is 0.5-1.0%.
5, biodegradation type insulated cleaning towel as claimed in claim 1 is characterized in that: described insulated cleaning towel also comprises the sealing bag that plastics are compound, and described cloth and the sealed bag of described cleaning agent exist in the sealing bag.
6, biodegradation type insulated cleaning towel as claimed in claim 5 is characterized in that: described sealing bag comprise aluminium foil the intermediate layer, be compounded in the internal layer and the skin of the plastics on two sides, aluminium foil intermediate layer.
7, biodegradation type insulated cleaning towel as claimed in claim 6 is characterized in that: described outer field material is BOPET or BOPP, and the material of described internal layer is that LDPE, HDPE, PP are wherein a kind of.
8, biodegradation type insulated cleaning towel as claimed in claim 6 is characterized in that: described outer field THICKNESS CONTROL is at 10-20 μ m, and the THICKNESS CONTROL of described aluminium foil is at 5-10 μ m, and the THICKNESS CONTROL of described internal layer is at 50-100 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100621835A CN100544662C (en) | 2006-08-17 | 2006-08-17 | Biodegradation type insulated cleaning towel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100621835A CN100544662C (en) | 2006-08-17 | 2006-08-17 | Biodegradation type insulated cleaning towel |
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| CN1907207A CN1907207A (en) | 2007-02-07 |
| CN100544662C true CN100544662C (en) | 2009-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100621835A Expired - Fee Related CN100544662C (en) | 2006-08-17 | 2006-08-17 | Biodegradation type insulated cleaning towel |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109266470A (en) * | 2018-09-20 | 2019-01-25 | 重庆丝玛帛科技有限公司 | A kind of fibre with cleaning function |
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2006
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Patent Citations (7)
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| US4719246A (en) * | 1986-12-22 | 1988-01-12 | E. I. Du Pont De Nemours And Company | Polylactide compositions |
| EP0314245A1 (en) * | 1987-10-28 | 1989-05-03 | Purac Biochem B.V. | Method for the preparation of a polymer lactide |
| CN2130510Y (en) * | 1992-06-21 | 1993-04-28 | 杨伟义 | Medical alcohol sterilized article |
| CN1120922A (en) * | 1994-10-17 | 1996-04-24 | 潘杰权 | Cleaning towel |
| CN1100086C (en) * | 1996-12-31 | 2003-01-29 | 金伯利-克拉克环球有限公司 | Thermoplastic compsn. |
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| CN1907207A (en) | 2007-02-07 |
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