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Antistatic optical release film for polaroid and preparation method of antistatic optical release film

An antistatic, polarizer technology, applied in conductive coatings, coatings, etc., can solve the problems of increasing the product cost of polarizer enterprises, unstable release force, low antistatic performance, etc. Low force, fast peel effect with low force

Pending Publication Date: 2021-08-27
浙江日久新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The full name of the polarizer is a polarizer, which is generally composed of a protective film layer, a TAC film layer, a PVA film layer, a TAC film layer, a pressure-sensitive adhesive layer, and a release film layer. It is an important part of liquid crystal display imaging. In order to protect the polarizer The medium pressure-sensitive adhesive layer will not be polluted during the product transportation and manufacturing process. It is necessary to attach a suitable optical release film to protect the pressure-sensitive adhesive layer in the polarizer product; this layer of optical release film requires Stable release force, strong PSA adaptability, high residual adhesion rate, high flatness, antistatic, large width, etc.; and the pressure-sensitive adhesive layer of the release film on the polarizer can meet the requirements of rapid peeling. At present, the width of the release film for polarizers required by some domestic polarizer companies has reached 2200mm. Due to the late start of the development of optical release films for polarizer products by domestic release film companies, and the width of the coating line And precision issues, most of the polarizer companies currently use release films rely on Japanese and Korean companies, which greatly increases the cost of domestic polarizer companies' products, and it is important to prepare and research antistatic optical release films for localized polarizers significance
[0003] Existing antistatic optical release films for polarizers have the disadvantages of insufficient release force, high rapid peeling force, and low antistatic performance

Method used

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  • Antistatic optical release film for polaroid and preparation method of antistatic optical release film

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A antistatic optical exemplary membrane with a polarizer, from top to bottom, including a layered layer, a substrate layer, and an antistatic layer comprising a component of the following weight: 100 parts of toluene, ethyl acetate 30 Series, vinyl polymethylsiloxane, 3 parts of ethyl hydrogen-containing polysiloxane, 0.5 parts of silane coupling agent KH-560, and 50 nm of diak coupling agent KH-570 modified 50 nm diamel 0.05 Series, fluorine-modified silicone resin, 2 parts of the Karstedt catalyst of 5%; the vinyl polymethylsiloxane is 300,000, the ethyl hydrogen-containing polysiloxicoxy The weight average molecular weight of the alkane is 15,000; the method of preparing the fluorine-modified organic silicone resin is as follows: 20 parts, 1, 3, 5- three (3,3,3-trifluoropropyl) -1, 3 at room temperature. , 5-trimethylcyclic triaxies and 3 parts of calcium carbonate, inserted into a stirred tank, warmed to 90 ° C, stir well, vacuum removal of the system moisture, cool to ...

Embodiment 2

[0036]One kind of an optical polarizer with an antistatic release film, the release layer comprises from top to bottom, an antistatic layer and a base layer, said release layer comprising by weight parts of the following components: 100 parts of toluene, ethyl acetate 30 parts of a vinyl polydimethylsiloxane 40 parts, 8 parts of phenyl hydrogen polysiloxane, silane coupling agent KH-560 1.5 parts of silane coupling agent KH-570 alumina-modified 100nm diameter particles 0.2 parts, 8 parts of fluorine-modified silicone resin, mass fraction of 5% Karstedt catalyst 4 parts; weight of the vinyl dimethicone average molecular weight of 1,000,000, said phenyl hydrogen polysiloxane a weight average molecular weight of alumoxane 25000; the fluorine-modified organic silicone resin prepared as follows: a mixture of 20 parts of 1,3,5-tris (3,3,3-trifluoropropyl) -1, 3,5-trimethyl-cyclotrisiloxane, and 3 parts of calcium carbonate, into a stirred tank and heated to 130. deg.] C, stirred uniform...

Embodiment 3

[0044] One kind of an optical polarizer with an antistatic release film, the release layer comprises from top to bottom, an antistatic layer and a base layer, said release layer comprising by weight parts of the following components: 100 parts of toluene, ethyl acetate 30 parts, vinyl dimethicone 30 parts, 5 parts of methyl hydrogen polysiloxane, silane coupling agent KH-560 1 parts of silane coupling agent KH-570 modified 150nm diameter silica particles 0.1 parts of silicon, 5 parts of fluorine-modified silicone resin, mass fraction of 5% Karstedt catalyst 3 parts; weight of the vinyl dimethicone average molecular weight of 600,000, a poly methyl hydrogen a weight average molecular weight of the siloxane 20,000; the fluorine-modified organic silicone resin prepared as follows: a mixture of 20 parts of 1,3,5-tris (3,3,3-trifluoropropyl) -1 , 3,5-trimethyl-cyclotrisiloxane, and 3 parts of calcium carbonate, into a stirred tank and heated to 110 deg.] C, stirred uniformly, the syste...

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Abstract

The invention discloses an antistatic optical release film for a polaroid. The antistatic optical release film comprises a release layer, a base material layer and an antistatic layer from top to bottom, and the release layer comprises the following components in parts by weight: 20-40 parts of vinyl polydimethylsiloxane, 3-8 parts of hydrogen-containing polysiloxane, 0.5-1.5 parts of an anchoring agent, 0.05-0.2 part of chemically modified inorganic particles, 3-8 parts of fluorine modified organic silicon resin, 2-4 parts of a platinum catalyst and 130 parts of an organic solvent. The release film has the characteristics of stable release force, low quick release force, antistatic property, high light transmittance, high residual adhesion rate and the like, is mainly used for protecting and transporting pressure-sensitive adhesive layers of polaroid products, does not generate static electricity to adsorb dust in polaroid transportation and downstream production, does not generate bad bubbles in use, and the release film cannot be quickly stripped in the downstream manufacturing process to cause poor stripping and influence the yield.

Description

[Technical field] [0001] The present invention relates to the technical field of exemplary membranes, in particular, a preparation method thereof, in particular, of the preparation method thereof. 【Background technique】 [0002] The polarizing plate is called a partial light sheet, typically consisting of a protective film layer, a TAC film layer, a PVA film layer, a TAC film layer, a pressure-sensorized layer, a membrane layer, and is an important part of a liquid crystal display imaging, in order to protect polarizing plates. The medium pressure sensitive adhesive layer is not contaminated during the product transportation process and the production process, and it is necessary to bond the appropriate optical release film to protect the pressure sensitive adhesive layer in polarizer products; this layer of optical release film requirement Stable induction force, strong PSA adapter, high residual start rate, high level of flatness, high wideness, etc.; and need to leave the memb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08J7/044C09D183/07C09D5/20C09D5/24C09D7/62C09D7/65C08L67/02
CPCC08J7/042C08J7/044C09D183/04C09D5/20C09D5/24C09D7/62C09D7/65C08J2467/02C08J2465/00C08J2483/07C08K2003/2241C08K2003/2227
Inventor 裴建军
Owner 浙江日久新材料科技有限公司
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