CN101451052B - Adhesive agent production method for polaroid - Google Patents
Adhesive agent production method for polaroid Download PDFInfo
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- CN101451052B CN101451052B CN200810220588A CN200810220588A CN101451052B CN 101451052 B CN101451052 B CN 101451052B CN 200810220588 A CN200810220588 A CN 200810220588A CN 200810220588 A CN200810220588 A CN 200810220588A CN 101451052 B CN101451052 B CN 101451052B
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- polyvinyl alcohol
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- polaroid
- bridging agent
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- Manufacture Of Macromolecular Shaped Articles (AREA)
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Abstract
The invention provides a method for preparing an adhesive for a polaroid. The method is characterized in that firstly, deionized water at normal temperature is used to wash, soak, re-wash and re-soak polyvinyl alcohol powder for 5 to 6 times for not less than 1 to 3 hours in total so as to reduce the content of alkali composition in the polyvinyl alcohol powder; secondly, the polyvinyl alcohol powder is dissolved according to a certain dissolution curve and is stored at constant temperature; thirdly, before the polyvinyl alcohol adhesive is used, a selected catalyst and a bridging agent are added into the polyvinyl alcohol powder and is stirred simultaneously; and finally, the mixture rolls in a dripping form to be spread between a polarized element polyvinyl alcohol film treated through dyeing and stretching and a TAC film treated through alkalinization, and is adhered, roasted and dried. The preparation method has the advantages of improving the performance of polyvinyl alcohol PVC hydrogel as well as weather resistance of the iodine polaroid.
Description
Technical field
The present invention relates to solid, the high-molecular polyvinyl alcohol water soluble glue prescription of polaroid, particularly relate to the making method of the high-molecular polyvinyl alcohol water soluble glue on a kind of polaroid that is used for liquid-crystal display with high moisture-resistant heat resistance.
Background technology
Polaroid is logical normally to be oriented on the light polarizing film that polyvinyl alcohol resin forms in the iodine of dichroism pigment or dichroic dye absorption, with dyestuff be Polarizer relatively, the iodine polarizing plate has advantages such as high permeability and high degree of polarization; But on optical durability, being not so good as dyestuff is Polarizer, and many pieces of documents are respectively in the thickening of cellulosetri-acetate protective membrane, and acid solution stretches; In the oxidation liquid of regulating, handle before stretching; Add boric acid and zinc chloride in the PVAC polyvinylalcohol glue, add in the PVAC polyvinylalcohol glue oxalic dialdehyde, LUTARALDEHYDE etc. improves, moisture-resistant heat resistanceheat resistant effect is all not really remarkable; The weather-proof polarisation sub-prime of 60 ℃ of * 90%*500Hr of ubiquity shrinks 100-500nm; The application of polaroid is very limited, and traditional PVAC polyvinylalcohol glue making method is the PVAC polyvinylalcohol powder directly to be connect be dissolved in the hot water, can make part alkaline matter and PVAC polyvinylalcohol in the PVAC polyvinylalcohol powder produce bridging action like this and increases the initial viscosity of the PVAC polyvinylalcohol aqueous solution; At this moment adding bridging agent more then can make the PVAC polyvinylalcohol solution viscosity too high; Unfavorable to product appearance, simultaneously, with alkaline matter bridge formation part the effective quantity of hydroxyl is reduced in the PVAC polyvinylalcohol; Be unfavorable for the firmness that card closes, close the article weathering resistance thereby influence card.
Summary of the invention
The object of the invention just provides a kind of PVAC polyvinylalcohol glue performance that makes and improves, and improves a kind of efficient linking agent and catalyzer that iodine polarizing sheet weathering resistance is used, and a kind of adhesive agent production method that is used for polaroid is provided.
The present invention adopts following technical solution to realize above-mentioned purpose: the present invention washs the PVAC polyvinylalcohol powder with deionized water at normal temperature earlier; Interpolation has the titanium compound bridging agent and the catalyzer that can between PVAC polyvinylalcohol film and TAC film, produce chemical bond again, and the product weather resistance is improved; Its concrete process step is following:
Earlier with deionized water at normal temperature to the Z 150PH powder wash-soak-wash-soak several more again 5 to 6 times, be no less than 1-3 hour when shared, with minimizing Z 150PH powder neutral and alkali component content;
With certain solubility curve rising temperature for dissolving Z 150PH powder, constant temperature is preserved then, and concrete heating schedule is: stirring at normal temperature added the Z 150PH powder 15-30 minute; Slowly be warming up to 85-95 ℃ in 60-120 minute; Constant temperature 30-60 minute, plunged 30 ℃ in 60-120 minute, filter constant temperature and preserve;
Then before the Z 150PH solid uses by a certain amount of selected catalyzer and the bridging agent of being added into; Catalyzer and bridging agent drip with the interpolation speed priority plain silk fabrics that PM 50-100 drips slowly; Implement simultaneously to stir, added fully to stir again making it transparent even in 15-60 minute, stirring velocity 200-1000 rev/min; Rolling with the drippage form then spreads out in the polarisation sub-prime polyvinyl alcohol film of dyed stretch processing with between the TAC of alkalinisation treatment film, and it is dry that card closes baking.
As further specifying of such scheme, selected catalyzer is the pure edta edta of top grade, and addition is that 0.01-10% is by the Z 150PH powder.Said bridging agent is a titanate coupling agent, and addition is 0.1～6.0% by the Z 150PH powder.
Said bridging agent is selected silane coupling agent or organic chelated zirconium for use, and addition is 0.1～6.0% by the Z 150PH powder.The said Z 150PH powder polymerization degree is: 1700-3000 ten thousand molecular weight, and alcoholysis degree: 78%-100%, selected concentration is: 3%-4%.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is: the present invention uses a kind of metal-chelating linking agent; Can impel metal-chelating linking agent and PVAC polyvinylalcohol film and through the reaction of building bridge of the cellulosetri-acetate TAC of alkalinisation treatment protective membrane between the two through heating and solvent evaporates; Produce chemical bond, thereby improve the moisture-resistant heat resistanceheat resistant effect of polaroid greatly.Through the experiment contrast, the moisture-resistant heat resistance of preferred for this invention instance: 60 ℃ of weather-proof polarisation sub-primes of * 90%*500Hr shrink and are reduced to below the 100 μ m from ordinary tablet 100-500 μ m; 25 ℃ of soaked layering tests from the 8-16hr of ordinary tablet be increased to＞7 days.Its performance index are better than prior art far away.
Embodiment
The adhesive agent production method specific embodiment that is used for polaroid of the present invention comprises that the following technology step gathers:
Earlier with deionized water at normal temperature to the PVAC polyvinylalcohol powder wash-soak-wash-soak several more again 5 to 6 times, be no less than 1-3 hour when shared, with minimizing PVAC polyvinylalcohol powder neutral and alkali component content; Wherein selected PVAC polyvinylalcohol powder model is the polymerization degree: 1700-3000 ten thousand molecular weight, preferred 1700-2600 ten thousand molecular weight, and alcoholysis degree: 78%-100%, preferred 87%-100%, selected concentration is: 3%-4%, preferred 3.3%-4.0%;
With certain solubility curve rising temperature for dissolving PVAC polyvinylalcohol powder, constant temperature is preserved then again, and concrete heating schedule is: stirring at normal temperature added the PVAC polyvinylalcohol powder 20 minutes; Slowly be warming up to 90 ℃ in 80 minutes; Constant temperature 45 minutes plunged 30 ℃ with 45 minutes again, filtered constant temperature and preserved;
By a certain amount of selected catalyzer and the bridging agent of being added into, catalyzer is the pure edta edta of top grade, is 5% by PVAC polyvinylalcohol grain weight amount addition before the PVAC polyvinylalcohol solid uses; Bridging agent is a titanate coupling agent; By PVAC polyvinylalcohol grain weight amount addition is 4.0%, and catalyzer and bridging agent drip with the interpolation speed priority plain silk fabrics of 80 of PMs slowly, implement simultaneously to stir; Added fully to stir again and made it transparent even in 40 minutes; Stirring velocity 200-1000 rev/min, rolling with the drippage form then spreads out in the polarisation sub-prime PVAC polyvinylalcohol film of dyed stretch processing with between the TAC of alkalinisation treatment film, and it is dry that card closes baking.
The selected bridging agent of the present invention is for also selecting silane coupling agent or organic chelated zirconium for use.
Be merely one of preferred embodiment of the present invention shown in the above embodiment of the present invention and the accompanying drawing, can not limit to the present invention with this, under the condition that does not break away from marrow of the present invention, any change that those skilled in the art did all belongs to protection scope of the present invention.
Claims (1)
1. preparation method who is used for the solid of polaroid, it is characterized in that: it comprises following process step:
Earlier with deionized water at normal temperature to the Z 150PH powder wash-soak-wash-soak again again 5 to 6 times, be no less than 3 hours when shared, with minimizing Z 150PH powder neutral and alkali component content;
With certain solubility curve rising temperature for dissolving Z 150PH powder, constant temperature is preserved then, and concrete heating schedule is: stirring at normal temperature added the Z 150PH powder 15-30 minute; Slowly be warming up to 85-95 ℃ in 60-120 minute; Constant temperature 30-60 minute, plunged 30 ℃ in 60-120 minute, filter constant temperature and preserve;
, the Z 150PH solid is added into selected catalyzer and bridging agent before using then; Catalyzer and bridging agent successively slowly drip with the interpolation speed that PM 50-100 drips; Implement simultaneously to stir, added fully to stir again making it transparent even in 15-60 minute, stirring velocity 200-1000 rev/min; Rolling with the drippage form then spreads out in the polarisation sub-prime polyvinyl alcohol film of dyed stretch processing with between the TAC of alkalinisation treatment film, and it is dry that card closes baking;
Selected catalyzer is pure YD 30, and addition is that 0.01-10% is by Z 150PH grain weight amount;
Said bridging agent is a titanate coupling agent, and addition is 0.1～6.0% by Z 150PH grain weight amount; Perhaps, said bridging agent is selected silane coupling agent or organic chelated zirconium for use, and addition is 0.1～6.0% by Z 150PH grain weight amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810220588A CN101451052B (en) | 2008-12-30 | 2008-12-30 | Adhesive agent production method for polaroid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810220588A CN101451052B (en) | 2008-12-30 | 2008-12-30 | Adhesive agent production method for polaroid |
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| Publication Number | Publication Date |
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| CN101451052A CN101451052A (en) | 2009-06-10 |
| CN101451052B true CN101451052B (en) | 2012-08-29 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5665622B2 (en) * | 2011-03-09 | 2015-02-04 | 株式会社サンリッツ | Polarizing plate manufacturing apparatus, polarizing plate manufacturing method, polarizing plate, and liquid crystal display device using the same |
| CN103472520B (en) * | 2013-08-30 | 2016-02-17 | 佛山纬达光电材料有限公司 | A kind of high temperature resistant iodine polarizing slice processing method |
| CN107459951B (en) * | 2017-09-05 | 2019-03-01 | 江南大学 | A kind of preparation method of polyvinyl alcohol-nanocrystalline cellulose PVA-CNC adhesive |
| CN108047987B (en) * | 2017-12-28 | 2019-11-22 | 南京汉旗新材料股份有限公司 | A kind of sun polarized ophthalmic lenses glue and preparation method thereof |
| CN110221376B (en) * | 2019-06-28 | 2022-07-05 | 昆山工研院新型平板显示技术中心有限公司 | Polaroid, display panel and preparation method of polaroid |
| CN110387201B (en) * | 2019-07-26 | 2020-11-13 | 合肥德瑞格光电科技有限公司 | Thermally stable adhesive for polaroid and preparation method thereof |
| CN112341957A (en) * | 2020-10-21 | 2021-02-09 | 齐皓宇 | Metal complex type high-strength polyvinyl alcohol glue and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096579A (en) * | 2006-06-26 | 2008-01-02 | 达信科技股份有限公司 | Glue material, polarization plate jointed by the same and manufacturing method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096579A (en) * | 2006-06-26 | 2008-01-02 | 达信科技股份有限公司 | Glue material, polarization plate jointed by the same and manufacturing method thereof |
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| CN101451052A (en) | 2009-06-10 |
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