CN104129134A - Anti-aging protective film - Google Patents
Anti-aging protective film Download PDFInfo
- Publication number
- CN104129134A CN104129134A CN201410374972.7A CN201410374972A CN104129134A CN 104129134 A CN104129134 A CN 104129134A CN 201410374972 A CN201410374972 A CN 201410374972A CN 104129134 A CN104129134 A CN 104129134A
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- China
- Prior art keywords
- aging
- parts
- diaphragm
- protective film
- polyurethane coating
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Abstract
The invention discloses an anti-aging protective film, which includes a PET base membrane. The surface of the base membrane is coated with a polyurethane coating, and the polyurethane coating comprises the following components mixed by weight: 50-55 parts of a polyurethane prepolymer; 3-5 parts of 2, 2, 6, 6-tetramethyl piperidine-1-oxygen free radical; 35-40 parts of a plasticizer; and 6-8 parts of a coupling agent. According to the anti-aging protective film provided by the invention, the 2, 2, 6, 6-tetramethyl piperidine-1-oxygen free radical has a very obvious inhibition effect on PET polymerization, and can generate a synergistic effect with the plasticizer and coupling agent so as to make the obtained PET film have good aging resistance. The aging speed of the film drops greatly in the process of using, and the service life of the anti-aging protective film is prolonged.
Description
Technical field
The present invention relates to a kind of anti-aging diaphragm.
Background technology
In prior art, in long-term use procedure, due to by constantly radiation, can there is aging jaundice in the diaphragm on LCDs, causes light transmittance to decline, and affects sight line, easily produces refraction and the irregular reference of light, user's eyes fatiguability.
Summary of the invention
In order to prevent that diaphragm is aging, extend diaphragm service life, the invention provides a kind of anti-aging diaphragm.
In order to solve above technical problem, technical scheme of the present invention is: a kind of anti-aging diaphragm, the basement membrane that comprises PET (PETG) material, the surface of described basement membrane scribbles polyurethane coating, and described polyurethane coating comprises the following component of mixing by weight: base polyurethane prepolymer for use as: 50～55 parts; 3～5 parts of 2,2,6,6-tetramethyl piperidine-1-oxygen radicals; 35～40 parts, plasticizer; 6～8 parts of coupling agents; 2～3 parts of light triggers.
As preferably, in technique scheme, 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.
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, in technique scheme, described coupling agent is selected from any one in trimethoxy monosilane, VTES, 3-trimethoxy silane propyl acrylate.
Described coupling agent can promote base polyurethane prepolymer for use as, 2,2,6, and the materials such as 6-tetramethyl piperidine-1-oxygen radical, plasticizer are uniformly dispersed.
Technical scheme provided by the present invention, 2,2,6, to PET, polymerization has very significantly inhibition to 6-tetramethyl piperidine-1-oxygen radical, adopts 2,2, PET film prepared by 6,6-tetramethyl piperidine-1-oxygen radical, and in raw material, add plasticizer, coupling agent; 2,2,6,6-tetramethyl piperidine-1-oxygen radical and plasticizer, coupling agent produce synergy, make the PET film obtaining have good ageing resistace, aging speed in use occurs and greatly decline, and have extended the service life of anti-aging diaphragm.
The specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
An anti-aging diaphragm, comprises the basement membrane of PET material, and the surface of described basement membrane scribbles polyurethane coating, and described polyurethane coating comprises the following component of mixing by weight:
Comparative example 1
An anti-aging diaphragm, comprises the basement membrane of PET material, and the surface of described basement membrane scribbles polyurethane coating, and described polyurethane coating comprises the following component of mixing by weight:
Base polyurethane prepolymer for use as: 55 parts;
40 parts of phthalic acid esters;
8 parts of trimethoxy monosilanes.
Embodiment 2
An anti-aging diaphragm, comprises the basement membrane of PET material, and the surface of described basement membrane scribbles polyurethane coating, and described polyurethane coating comprises the following component of mixing by weight:
Comparative example 2
An anti-aging diaphragm, comprises the basement membrane of PET material, and the surface of described basement membrane scribbles polyurethane coating, and described polyurethane coating comprises the following component of mixing by weight:
Base polyurethane prepolymer for use as: 50 parts;
35 parts of phthalic acid esters;
6 parts of trimethoxy monosilanes.
By conventional coating method, above-mentioned polyurethane coating is evenly applied to respectively to the surface of PET basement membrane, coating layer thickness 0.5mm, is placed in baking oven and heats 5～10 minutes, dries, and makes surface completely curing.
Anti-yellowing property method of testing: sample is put into UV ageing oven, following condition: 0.85w/cm is set
2, 60 ℃, place yellow colour index and light transmittance after test sample is aging 500 hours.
Light transmittance method of testing: with reference to the mensuration > > of standard GB/T/T 2410-2008 < < transparent plastic light transmittance and mist degree, adopt light transmittance mist degree tester to measure.
Test data is in Table 1:
Table 1: anti-aging diaphragm performance comparison data.
| ? | Yellow colour index | Light transmittance |
| Embodiment 1 | 0.25 | 99％ |
| Embodiment 2 | 0.28 | 99％ |
| Comparative example 1 | 0.61 | 87％ |
| Comparative example 2 | 0.68 | 88％ |
From table 1 data; after aging; the light transmittance of anti-aging diaphragm provided by the present invention is all greater than 99%, and yellow colour index is little, owing to having added 2 in anti-aging diaphragm provided by the present invention; 2; 6,6-tetramethyl piperidine-1-oxygen radical, in use there is the aging speed of yellowing and greatly decline in anti-aging diaphragm; 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 within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these change and modification.
Claims (3)
1. an anti-aging diaphragm, is characterized in that, comprises the basement membrane of PET material, and the surface of described basement membrane scribbles polyurethane coating, and described polyurethane coating comprises the following component of mixing by weight:
2. anti-aging diaphragm according to claim 1, 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.
3. anti-aging diaphragm according to claim 1, is characterized in that, described coupling agent is selected from any one in trimethoxy monosilane, VTES, 3-trimethoxy silane propyl acrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374972.7A CN104129134A (en) | 2014-08-01 | 2014-08-01 | Anti-aging protective film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374972.7A CN104129134A (en) | 2014-08-01 | 2014-08-01 | Anti-aging protective film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104129134A true CN104129134A (en) | 2014-11-05 |
Family
ID=51802107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410374972.7A Pending CN104129134A (en) | 2014-08-01 | 2014-08-01 | Anti-aging protective film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104129134A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877971A (en) * | 2017-11-03 | 2018-04-06 | 云梦县德邦实业有限责任公司 | A kind of anti-aging Matte films of PET |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602917A (en) * | 2009-07-10 | 2009-12-16 | 中国乐凯胶片集团公司 | A kind of ultraviolet-curing paint |
| US20130233488A1 (en) * | 2010-12-20 | 2013-09-12 | Dow Global Technologies Llc | Curable Compositions Containing Isocyanate Functional Components Having Improved Durability |
| CN103374323A (en) * | 2013-07-31 | 2013-10-30 | 深圳市安立新材料有限公司 | Preparation method of yellowing resistant liquid optical adhesive |
| CN103640292A (en) * | 2013-11-27 | 2014-03-19 | 常熟市富邦胶带有限责任公司 | Mobile phone film |
| CN103820037A (en) * | 2014-03-12 | 2014-05-28 | 深圳市中显微电子有限公司 | Yellowing-resistant liquid optical adhesive and a preparation method thereof |
-
2014
- 2014-08-01 CN CN201410374972.7A patent/CN104129134A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602917A (en) * | 2009-07-10 | 2009-12-16 | 中国乐凯胶片集团公司 | A kind of ultraviolet-curing paint |
| US20130233488A1 (en) * | 2010-12-20 | 2013-09-12 | Dow Global Technologies Llc | Curable Compositions Containing Isocyanate Functional Components Having Improved Durability |
| CN103374323A (en) * | 2013-07-31 | 2013-10-30 | 深圳市安立新材料有限公司 | Preparation method of yellowing resistant liquid optical adhesive |
| CN103640292A (en) * | 2013-11-27 | 2014-03-19 | 常熟市富邦胶带有限责任公司 | Mobile phone film |
| CN103820037A (en) * | 2014-03-12 | 2014-05-28 | 深圳市中显微电子有限公司 | Yellowing-resistant liquid optical adhesive and a preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877971A (en) * | 2017-11-03 | 2018-04-06 | 云梦县德邦实业有限责任公司 | A kind of anti-aging Matte films of PET |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141105 |