CN104149449A - Anti-static and anti-aging protective film - Google Patents
Anti-static and anti-aging protective film Download PDFInfo
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- CN104149449A CN104149449A CN201410374297.8A CN201410374297A CN104149449A CN 104149449 A CN104149449 A CN 104149449A CN 201410374297 A CN201410374297 A CN 201410374297A CN 104149449 A CN104149449 A CN 104149449A
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- aging
- diaphragm
- antistatic
- basement membrane
- static
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Abstract
The invention discloses an anti-static and anti-aging protective film which comprises a base film made of a polyethylene terephthalate (PET) material; one surface of the base film is coated with poly-pyridine, and the other surface of the base film is coated with a polyurethane (PU) coating; the PU coating comprises 2-hydroxyl-4-methoxy-benzophenone. The anti-static and anti-aging protective film is high in anti-static performance, so that dust is prevented from being absorbed by the anti-static and anti-aging protective film when the film is stuck, and electrostatic adsorption can be avoided. The ageing resistance is improved, the yellowing and aging speed can be greatly reduced when the anti-static and anti-aging protective film is used, the light transmittance is well maintained, and the service life of the protective film is prolonged.
Description
Technical field
The present invention relates to the anti-aging diaphragm of a kind of antistatic.
Background technology
Along with the development of electronics, communications industry, various mobile phones, computer, game machine have become an indispensable part in people's life.But most mobile phones, computer, game machine etc. adopt liquid crystal material as display floater on the market, along with the prolongation of service time, liquid crystal panel easily wears, makes dirty, affects liquid crystal panel service life.Therefore, for the protection of the diaphragm of the liquid crystal panel of mobile phone, computer, game machine, as a kind of periphery industry, its application and research is more and more extensive.
Diaphragm of the prior art generally adopts PET (PETG) material as base material, then the preparation of coated material, and diaphragm antistatic property is poor, easily absorbs dust in attaching use procedure; And due to by constantly radiation, can there is aging jaundice, cause light transmittance to decline, affect sight line, easily produce refraction and the irregular reference of light, user's eyes fatiguability.
Summary of the invention
In order to improve the antistatic property of diaphragm, strengthen ageing resistace, the invention provides the anti-aging diaphragm of a kind of antistatic.
In order to solve above technical problem; technical scheme of the present invention is: the anti-aging diaphragm of a kind of antistatic; comprise the basement membrane of PET material; surface of described basement membrane scribbles polypyridine; another surface of described basement membrane scribbles polyurethane coating, in described polyurethane coating, includes ESCALOL 567.
As preferably, polyurethane coating described in technique scheme comprises the following component of mixing by weight: base polyurethane prepolymer for use as: 50～60 parts; 10～15 parts of ESCALOL 567s; 3～5 parts, plasticizer; 1～3 part of chain extender; 1～3 part of defoamer; 1～2 part of catalyst.
As preferably, plasticizer described in technique scheme is one or more the mixture in phthalic acid ester, phosphate, alkyl sulfonic ester, fatty group dibasic acid, benzene polyacid ester and epoxide.Described plasticizer is inserted between polyurethane molecular chain, has weakened the stress of polyurethane molecular interchain, has increased the mobility of polyurethane molecular chain, has reduced the degree of crystallinity of polyurethane molecular chain, thereby the plasticity of polyurethane is increased.
As preferably, chain extender described in technique scheme is one or more mixtures with arbitrary proportion in ethylene glycol, BDO, pentanediol, 1,3-PD, methyl propanediol.Chain extender contributes to increase length and the hardness of molecule in polyurethane material.
As preferably, defoamer described in technique scheme is polyether antifoam agent.Described defoamer is preferably polyether antifoam agent GP6303, belongs to biofermentation polyether antifoam agent GP6303, the trade name that this title is known to the skilled person, and its chemical composition comprises: glycerine, polyethers, epoxy the third gastral cavity, second gastral cavity, surfactant etc.; Belong to nonionic type defoamer; Outward appearance: water white transparency thick liquid (25 DEG C of range estimations); Acid number :≤0.5mgKOH/g; Hydroxyl value: 52～60mgKOH/g; There is following characteristics: 1, aspect thermophilic digestion, can be resistance to 320 degree left and right, and defoaming effect is splendid; 2, have than vegetable oil or the more effective froth breaking effect of higher alcohol, it is lasting that froth breaking presses down bubble; 3, be widely used in making defoamer in oil field petroleum refining, rubber tyre industry, pharmacy, salt deep processing industry, strain fermentation, monosodium glutamate, coating, Closed Circulation in Sugar Production, there is the effect of eliminating foam, and the usefulness that has inhibition foam to produce again.
The anti-aging diaphragm of antistatic provided by the present invention comprises the basement membrane of PET material; surface of described basement membrane scribbles polypyridine; the surperficial polypyridine of described PET basement membrane has antistatic property; improve the antistatic property of the anti-aging diaphragm of antistatic; the anti-aging diaphragm sheet resistance of antistatic is reduced; antistatic property improves greatly, effectively prevents that the anti-aging diaphragm of antistatic from absorbing dust in attaching process, avoids producing Electrostatic Absorption.In addition; another surface of described basement membrane scribbles polyurethane coating; in described polyurethane coating, include ESCALOL 567; described ESCALOL 567 has ageing resistace; strengthen the ageing resistace of the anti-aging diaphragm of antistatic; the yellow colour index of the anti-aging diaphragm of antistatic of process burin-in process is less; in use there is the aging speed of yellowing and greatly decline in the anti-aging diaphragm of antistatic; it is good that light transmittance keeps, the service life of having improved diaphragm.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
The anti-aging diaphragm of a kind of antistatic, comprises the basement membrane of PET material, and surface of described basement membrane scribbles polypyridine, and another surface of described basement membrane scribbles polyurethane coating, and described polyurethane coating comprises the following component of mixing by weight:
The anti-aging diaphragm preparation method of above-mentioned antistatic:
Step 1: by polypyridine dilution, viscosity is at 10mpas/25C
Step 2: the polypyridine after dilution is evenly applied to PET membrane surface by conventional coating method;
Step 3: the product that step 2 is obtained is placed in baking oven and heats 5 minutes, dries, and makes surface completely curing.
Step 4: polyurethane coating is evenly applied to another surface of PET basement membrane, coating layer thickness 0.5mm by conventional coating method;
Step 5: dry, the product that step 4 is obtained is placed in baking oven and heats 5 minutes, dries, and makes surface completely curing.
Comparative example 1
The anti-aging diaphragm of a kind of antistatic, comprises the basement membrane of PET material, and surface of described basement membrane scribbles polyurethane coating, and described polyurethane coating comprises the following component of mixing by weight:
Preparation method:
Step 1: polyurethane coating is evenly applied to surface of PET basement membrane, coating layer thickness 0.5mm by conventional coating method;
Step 2: the product that step 1 is obtained is placed in baking oven and heats 5 minutes, dries, and makes surface completely curing.
Embodiment 2
The anti-aging diaphragm of a kind of antistatic, comprises the basement membrane of PET material, and surface of described basement membrane scribbles polypyridine, and another surface of described basement membrane scribbles polyurethane coating, and described polyurethane coating comprises the following component of mixing by weight:
The anti-aging diaphragm preparation method of above-mentioned antistatic:
Step 1: by polypyridine dilution, viscosity is at 100mpas/25C
Step 2: the polypyridine after dilution is evenly applied to PET membrane surface by conventional coating method;
Step 3: the product that step 2 is obtained is placed in baking oven and heats 10 minutes, dries, and makes surface completely curing.
Step 4: polyurethane coating is evenly applied to another surface of PET basement membrane, coating layer thickness 0.5mm by conventional coating method;
Step 5: dry, the product that step 4 is obtained is placed in baking oven and heats 10 minutes, dries, and makes surface completely curing.
Comparative example 2
The anti-aging diaphragm of a kind of antistatic, comprises the basement membrane of PET material, and surface of described basement membrane scribbles polyurethane coating, and described polyurethane coating comprises the following component of mixing by weight:
Preparation method:
Step 1: polyurethane coating is evenly applied to surface of PET basement membrane, coating layer thickness 0.5mm by conventional coating method;
Step 2: the product that step 1 is obtained is placed in baking oven and heats 10 minutes, dries, and makes surface completely curing.
Anti-aging antistatic prepared embodiment 1～2 diaphragm and the prepared diaphragm of comparative example 1～2 are done to following test:
(1) sheet resistance test: use PC68 type numeral megger, meter surface resistance;
(2) coating layer thickness: use interfere type thickness instrument tester (FILMETRICS company of the U.S.: model: F20-UV) to measure coating layer thickness;
(3) anti-yellowing property test: sample is put into UV ageing oven, following condition: 0.85w/cm is set
2, 60 DEG C, place yellow colour index and light transmittance after test sample is aging 500 hours.
Light transmittance method of testing: with reference to standard GB/T/T2410-2008 " mensuration of transparent plastic light transmittance and mist degree ", adopt light transmittance mist degree tester to measure.
Test data is in table 1:
Table 1: the test data of the anti-aging diaphragm of antistatic provided by the present invention and comparative example diaphragm.
| ? | Embodiment 1 | Comparative example 1 | Embodiment 2 | Comparative example 2 |
| Sheet resistance (Ω) | 7.0×10 8 | 4.6×10 11 | 3.6×10 8 | 8.6×10 11 |
| Yellow colour index | 0.26 | 0.65 | 0.29 | 0.67 |
| Light transmittance | 99％ | 85％ | 99％ | 89％ |
From table 1 data; the anti-aging diaphragm of antistatic provided by the present invention comprises the basement membrane of PET material; surface of described basement membrane scribbles polypyridine; the surperficial polypyridine of described PET basement membrane has antistatic property; improved the antistatic property of the anti-aging diaphragm of antistatic, the anti-aging diaphragm sheet resistance of antistatic is reduced, antistatic property improves greatly; effectively prevent that the anti-aging diaphragm of antistatic from absorbing dust in attaching process, avoids producing Electrostatic Absorption.In addition; another surface of described basement membrane scribbles polyurethane coating; in described polyurethane coating, include ESCALOL 567; described ESCALOL 567 has ageing resistace; strengthen the ageing resistace of the anti-aging diaphragm of antistatic; the yellow colour index of the anti-aging diaphragm of antistatic of process burin-in process is less; in use there is the aging speed of yellowing and greatly decline in the anti-aging diaphragm of antistatic; it is good that light transmittance keeps, the service life of having improved diaphragm.
Those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to including these changes and modification.
Claims (6)
1. the anti-aging diaphragm of antistatic; it is characterized in that, comprise the basement membrane of PET material, surface of described basement membrane scribbles polypyridine; another surface of described basement membrane scribbles polyurethane coating, in described polyurethane coating, includes ESCALOL 567.
2. the anti-aging diaphragm of antistatic according to claim 1, is characterized in that, described polyurethane coating comprises the following component of mixing by weight:
3. the anti-aging diaphragm of antistatic according to claim 2, is characterized in that, described plasticizer is one or more the mixture in phthalic acid ester, phosphate, alkyl sulfonic ester, fatty group dibasic acid, benzene polyacid ester and epoxide.
4. the anti-aging diaphragm of antistatic according to claim 2, is characterized in that, described chain extender is one or more mixtures with arbitrary proportion in ethylene glycol, BDO, pentanediol, 1,3-PD, methyl propanediol.
5. the anti-aging diaphragm of antistatic according to claim 2, is characterized in that, described defoamer is polyether antifoam agent.
6. the anti-aging diaphragm of antistatic according to claim 2, is characterized in that, described catalyst is triethylene diamine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374297.8A CN104149449A (en) | 2014-08-01 | 2014-08-01 | Anti-static and anti-aging protective film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374297.8A CN104149449A (en) | 2014-08-01 | 2014-08-01 | Anti-static and anti-aging protective film |
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| CN104149449A true CN104149449A (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410374297.8A Pending CN104149449A (en) | 2014-08-01 | 2014-08-01 | Anti-static and anti-aging protective film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773648A (en) * | 2022-05-09 | 2022-07-22 | 南通天晟塑料包装有限责任公司 | Production process of anti-aging plastic film |
Citations (6)
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| KR20060107673A (en) * | 2005-04-11 | 2006-10-16 | 주식회사 엘지화학 | A film for protecting a surface for a polarizing plate and method for manufacturing the same |
| CN101557934A (en) * | 2006-09-20 | 2009-10-14 | 三菱丽阳株式会社 | Resin laminate, process for production thereof, and transfer film for use in the production of resin laminate |
| CN102277122A (en) * | 2011-03-30 | 2011-12-14 | 烟台联成高分子材料有限公司 | Waterborne polyurethane adhesive and manufacturing method thereof |
| CN102585685A (en) * | 2011-01-14 | 2012-07-18 | 周太峰 | Single-component polyurethane waterproof paint and preparation process thereof |
| CN103641975A (en) * | 2013-11-27 | 2014-03-19 | 常熟市富邦胶带有限责任公司 | Mobile phone film and preparation technology of PU coating thereof |
| CN103805119A (en) * | 2012-11-06 | 2014-05-21 | 日东电工株式会社 | Urethane-based pressure-sensitive adhesive and surface protective film using the pressure-sensitive adhesive |
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2014
- 2014-08-01 CN CN201410374297.8A patent/CN104149449A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060107673A (en) * | 2005-04-11 | 2006-10-16 | 주식회사 엘지화학 | A film for protecting a surface for a polarizing plate and method for manufacturing the same |
| CN101557934A (en) * | 2006-09-20 | 2009-10-14 | 三菱丽阳株式会社 | Resin laminate, process for production thereof, and transfer film for use in the production of resin laminate |
| CN102585685A (en) * | 2011-01-14 | 2012-07-18 | 周太峰 | Single-component polyurethane waterproof paint and preparation process thereof |
| CN102277122A (en) * | 2011-03-30 | 2011-12-14 | 烟台联成高分子材料有限公司 | Waterborne polyurethane adhesive and manufacturing method thereof |
| CN103805119A (en) * | 2012-11-06 | 2014-05-21 | 日东电工株式会社 | Urethane-based pressure-sensitive adhesive and surface protective film using the pressure-sensitive adhesive |
| CN103641975A (en) * | 2013-11-27 | 2014-03-19 | 常熟市富邦胶带有限责任公司 | Mobile phone film and preparation technology of PU coating thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773648A (en) * | 2022-05-09 | 2022-07-22 | 南通天晟塑料包装有限责任公司 | Production process of anti-aging plastic film |
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Application publication date: 20141119 |