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Preparation method of pressure sensitive adhesive for polaroid protection film and protection film thereof

A technology of protective film and pressure-sensitive adhesive, applied in pressure-sensitive films/sheets, adhesives, film/sheet-like adhesives, etc. Excellent conductivity and electrical conductivity, saving the effect of glue dispensing process

Inactive Publication Date: 2018-08-10
昆山乐凯锦富光电科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problems to be solved in the present invention Aiming at problems such as complex process and unstable performance of pressure-sensitive adhesive in the prior art, a method for preparing pressure-sensitive adhesive for polarizer protective film is provided, and the adhesive layer resistance of the protective film is 10 10 Ω or less

Method used

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  • Preparation method of pressure sensitive adhesive for polaroid protection film and protection film thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Mix 10 g of lauryl methacrylate, 10 g of ethyl methacrylate, 5 g of styrene, 4 g of trifluoroethyl methacrylate, and 0.5 g of azobisisobutyronitrile uniformly to obtain a pre-prepared solution.

[0033] 10g of ethyl acetate, 15g of butyl acetate, and 5g of acetone were added to the reactor, the temperature was raised to 75°C, 7.38g of prefabricated solution was added to the reactor, and the reaction was incubated for 25min; 0.8g of trimethylolpropane triacrylate, 0.8 g of dimethyl (dimethylamino) vinyl silane, 0.53 g of polythiophene, and 0.27 g of silver nanowires were added to the remaining pre-prepared solution to obtain an intermediate solution.

[0034] Add the intermediate solution to the reactor, keep the reaction for 1.5h, cool down to 50°C, then add 50g ethyl acetate, 75g butyl acetate, 10g acetone, 15g butanone, 1g MF-K60X (Japan Asahi Kasei Chemical), get polarizer protection Pressure sensitive adhesive for film.

[0035] Coat the pressure-sensitive adhesive...

Embodiment 2

[0037] 20 g of lauryl methacrylate, 20 g of 2-ethylhexyl acrylate, 10 g of ethyl methacrylate, 5 g of styrene, 2 g of trifluoroethyl acrylate, and 1 g of dibenzoyl peroxide were mixed uniformly to obtain a pre-prepared solution.

[0038] 64g of ethyl acetate, 10g of acetone and 6g of butanone were added to the reactor, the temperature was raised to 85°C, 9.67g of prefabricated solution was added to the reactor, and the reaction was kept for 15min; 2g of trimethylolpropane triacrylate, 1g of dimethacrylate Propylene glycol diacrylate, 0.7g dimethyl(dimethylamino)vinylsilane, 0.7g vinyltriacetylsilane, 0.6g diethylmethylvinylsilane, 1.67g polythiophene, 0.33g nano silver wire were added into the remaining prefabricated solution to obtain an intermediate solution.

[0039] Add the intermediate solution to the reactor, keep the reaction temperature for 3h, cool down to 60°C, then add 80g ethyl acetate, 20g acetone, 20g butanone, 4g BL3370MPA (Bayer) to obtain a pressure-sensitive ...

Embodiment 3

[0042] 30g 2-ethylhexyl acrylate, 5g ethyl methacrylate, 5g styrene, 3g trifluoroethyl methacrylate, 3g trifluoroethyl acrylate, 0.3g azobisisobutyronitrile, 0.3g The dibenzoyl oxide is mixed uniformly to obtain a pre-prepared solution.

[0043] 45g of butyl acetate and 15g of butanone were added to the reactor, the temperature was raised to 80°C, 9.32g of prefabricated solution was added to the reactor, and the reaction was kept for 25min; 1.5g of dipropylene glycol diacrylate, 1g of dimethyl (dimethyl) Amino) vinylsilane, 0.5 g of diethylmethylvinylsilane, 1.2 g of polythiophene, and 0.3 g of silver nanowires were added to the remaining pre-prepared solution to obtain an intermediate solution.

[0044] Add the intermediate solution to the reactor, keep the reaction for 2h, cool down to 55℃, then add 20g ethyl acetate, 40g butyl acetate, 20g butanone, 1g MF-K60X (Asahi Kasei Chemical), 1g BL3370MPA (Bayer), 1g B1358 (Degu Sa) to obtain a pressure-sensitive adhesive for polar...

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Abstract

The invention discloses a preparation method of a pressure sensitive adhesive for a polaroid protection film and a protection film thereof. The pressure sensitive adhesive is prepared from the following raw materials in parts by weight: 10 to 40 weight parts of soft monomers, 5 to 15 weight parts of hard monomers, 2 to 6 weight parts of fluorine containing acrylate monomers, 0.8 to 3 weight partsof crosslinking monomers, 0.8 to 2 weight parts of vinylsilane, 0.5 to 2 weight parts of anti-static agents, 0.5 to 1.5 weight parts of initiators and 80 to 190 weight parts of solvents. The pressuresensitive adhesive can be directly covered on the surface of a polyester film; the additional addition of the curing agents and the anti-static agents is not needed; the adhesive layer resistance is 1010 ohm or less; the anti-static performance is realized. When the polaroid protection film adhesive layer is pasted on the surface of a polaroid, after the high-temperature and high-humidity tests for 500h, the protection film and the polaroid are tightly attached; no bubble bulges exist; no adhesive is remained when the protection film is torn away; defects such as hard shadow do not exist.

Description

technical field [0001] The invention relates to the technical field of films, in particular to a pressure-sensitive adhesive for polarizer protective films. Background technique [0002] The polarizer is an important part of the liquid crystal display. In order to prevent the polarizer from contaminating or damaging the surface during the assembly or transportation process, a protective film needs to be attached to the surface of the polarizer. After assembling the polarizer into the liquid crystal display, peel off the surface protective film from the surface of the polarizer. During the process of tearing off the surface protective film, the resistance value on the protective film is high, which will generate electrostatic voltage, which will damage the liquid crystal display. Liquid crystal molecules and components such as the driving circuit that controls the liquid crystal display, so the adhesive layer of the protective film needs a certain resistance value to prevent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/38C08F220/18C08F212/08C08F220/22C08F265/06C08F265/04C08F222/14C08F230/08C09J151/00C09J11/04C09J11/08
CPCC09J7/255C09J7/381C09J11/04C09J11/08C09J151/003C08F2/44C08F220/18C08F265/04C08F265/06C08L2201/04C08K2201/001C08K2201/011C08K2201/017C09J2203/318C09J2451/00C09J2467/006C08F220/1812C09J2301/414C09J2301/122C09J2301/408C09J2301/312C08F230/08C08L65/00C08K7/06C08F222/103C08F212/08C08F220/22
Inventor 安佳丽周守发牛正富何晶晶王辉
Owner 昆山乐凯锦富光电科技有限公司
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