Preparation method of emulsion pressure-sensitive adhesive and polarizer protective film

A protective film, hydraulic technology, applied in the direction of pressure-sensitive film/sheet, adhesive, film/sheet adhesive, etc., can solve the problems of environmental pollution, complex process, etc., to improve compatibility, stable performance, reduce The effect of the glue dispensing process

Active Publication Date: 2018-08-24
HEFEI LUCKY SCI & TECH IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to provide a preparation method of emulsi

Method used

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  • Preparation method of emulsion pressure-sensitive adhesive and polarizer protective film
  • Preparation method of emulsion pressure-sensitive adhesive and polarizer protective film

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] (1) Mix 100 g of deionized water and 0.5 g of sodium vinyl sulfonate quickly to obtain a preformed liquid;

[0029] (2) Weigh 20.1g of preformed liquid to dissolve 0.5g of ammonium persulfate to obtain an initiator solution; mix 2g of diacetone acrylamide, 15g of isooctyl acrylate, 5g of vinyl acetate, 4g of 2-hydroxyethyl acrylate , 2.5g triethylvinylsilane modified zinc oxide with a particle size of 50nm, 0.5g methylstyrene silane modified tin oxide with a particle size of 200nm, quickly stir and mix uniformly to obtain an intermediate solution;

[0030] (3) Add 0.5g of sodium bicarbonate and 2.9g of intermediate solution to the remaining preformed solution. After pre-emulsification for 20 minutes, the temperature is raised to 85°C, and the initiator solution is added dropwise until the pre-emulsion turns blue. After the addition of the solvent solution and the remaining intermediate solution, the emulsion is incubated and reacted for 1.5 hours, then the ...

Example Embodiment

[0032] Example 2

[0033] (1) Quickly stir and mix 150 g of deionized water, 0.5 g of sodium vinyl sulfonate, and 0.5 g of sodium p-styrene sulfonate to obtain a preformed liquid;

[0034] (2) Weigh 45.2g of preformed liquid to dissolve 0.75g ammonium persulfate and 0.75 potassium persulfate to obtain an initiator solution; combine 1g N-methylolacrylamide, 1.5g diacetone acrylamide, and 10g isooctyl acrylate , 15g lauryl methacrylate, 6g n-butyl methacrylate, 6g vinyl acetate, 2g 2-hydroxyethyl acrylate, 5g 2-hydroxypropyl methacrylate, 0.3g methylstyrene silane modification Zinc oxide with a particle size of 80nm, 0.37g of tin oxide with a particle size of 100nm modified by triethylvinylsilane, 0.13g of tin oxide with a particle size of 250nm modified with methylvinyldiethoxysilane, 0.2g of tin oxide Zinc oxide with a particle size of 300nm modified by styrene silane is quickly stirred and mixed uniformly to obtain an intermediate solution;

[0035] (3) Add 0.4g of sodium bicarbon...

Example Embodiment

[0037] Example 3

[0038] (1) Mix 125 g of deionized water, 0.5 g of sodium vinyl sulfonate, 0.5 g of sodium p-styrene sulfonate, and 0.5 g of sodium methacrylate sulfonate quickly to obtain a preformed liquid;

[0039] (2) Weigh 25.3g of the preformed liquid to dissolve 1.25g potassium persulfate to obtain an initiator solution; mix 3g diacetone acrylamide, 30g lauryl methacrylate, 15g n-butyl methacrylate, 6g methacrylic acid -2-hydroxypropyl ester, 0.5g triethylvinylsilane modified zinc oxide with a particle size of 50nm, 0.5g methylstyrene silane modified tin oxide with a particle size of 70nm, 0.5g methyl vinyl diethyl Zinc oxide with a particle size of 100nm modified by oxysilane, 0.25g tin oxide with a particle size of 200nm modified with methylvinyldiethoxysilane, 0.25g of zinc oxide with a particle size of 250nm modified with methylstyrene silane , Quickly stir and mix evenly to obtain intermediate liquid;

[0040] (3) Add 1.25g of ammonium bicarbonate and 8.4g of intermed...

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Abstract

The invention discloses a preparation method of an emulsion pressure-sensitive adhesive and a polarizer protective film. The pressure-sensitive adhesive is prepared from the following raw materials inparts by weight: 100-200 parts of deionized water, 0.5-1.5 parts of sulfonate reactive emulsifier, 2-5 parts of acyl-containing acrylic monomer, 15-40 parts of soft monomer, 5-15 parts of hard monomer, 4-8 parts of functional monomer and 1-4 parts of modified antistatic agent; the pressure-sensitive adhesive can directly coat the surface of a polyester film without additionally adding a curing agent and the antistatic agent, has the adhesive layer resistance below 109ohm and has antistatic property. When an adhesive layer of the polarizer protective film is pasted to the surface of a polarizer, after being subjected to high-temperature and high-humidity experiments for 500h, the protective film tightly pasted to the polarizer, and the defects such as air bubbles as well as residual adhesives and dark shadows during protective film tearing are avoided.

Description

technical field [0001] The invention relates to the field of film technology, in particular to an emulsion pressure-sensitive adhesive and a polarizer protective film prepared therefrom. Background technique [0002] The polarizer is an important part of the liquid crystal display. In order to prevent the surface of the polarizer from being polluted or damaged during the assembly process or transportation, it is necessary to attach a protective film to the surface of the polarizer. After the polarizer is assembled into the liquid crystal display, the surface protective film is peeled off 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. Electrostatic voltage will destroy the liquid crystal molecules of the liquid crystal display and the drive circuit that controls the liquid crystal display and other components, so the adhesive layer...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F218/08C08F220/20C08F220/58C08F2/26C09J7/38C09J7/25C09J9/02
CPCC08F2/26C08F220/18C08K9/06C08K2003/2231C08K2003/2296C09J9/02C09J2467/006C09J7/255C09J7/385C08F220/1808C08F220/1812C09J2301/122C09J2301/304C09J2301/312C09J2301/408C08F218/08C08F220/20C08F220/58C08F220/1804
Inventor 安佳丽周守发牛正富王旭亮
Owner HEFEI LUCKY SCI & TECH IND
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