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

A technology of hydraulic pressure and preparation steps, which is applied in the direction of pressure-sensitive films/sheets, adhesives, film/sheet-shaped adhesives, etc. It can solve problems such as complex processes and environmental pollution, improve compatibility, and reduce glue mixing processes. , the effect of stable performance

Active Publication Date: 2020-11-03
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 emulsion pressure-sensitive adhesive for the problems of complex process and environmental pollution in the prior art

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

Embodiment 1

[0028] (1) 100 g of deionized water and 0.5 g of sodium vinyl sulfonate were stirred and mixed evenly to obtain a prefabricated solution;

[0029] (2) Weighing 20.1g of the prefabricated solution is used to dissolve 0.5g ammonium persulfate to obtain an initiator solution; 2g diacetone acrylamide, 15g isooctyl acrylate, 5g vinyl acetate, 4g 2-hydroxyethyl acrylate , 2.5g of zinc oxide with a particle diameter of 50nm modified by triethylvinylsilane, 0.5g of tin oxide with a particle diameter of 200nm modified by methylstyrene silane, stirred and mixed evenly to obtain an intermediate solution;

[0030] (3) Add 0.5g sodium bicarbonate and 2.9g intermediate solution to the remaining pre-preparation solution, pre-emulsify for 20 minutes, raise the temperature to 85°C, and add the initiator solution dropwise, until the pre-emulsion turns blue, add the remaining initiator solution dropwise at the same time agent solution and the remaining intermediate solution, after both additions...

Embodiment 2

[0033] (1) 150g of deionized water, 0.5g of sodium vinylsulfonate, and 0.5g of sodium p-styrenesulfonate were stirred and mixed evenly to obtain a prefabricated solution;

[0034] (2) Weighing 45.2g of the prefabricated solution is used to dissolve 0.75g ammonium persulfate and 0.75 potassium persulfate to obtain an initiator solution; , 15g lauryl methacrylate, 6g n-butyl methacrylate, 6g vinyl acetate, 2g-2-hydroxyethyl acrylate, 5g-2-hydroxypropyl methacrylate, 0.3g methyl styrene silane modified Zinc oxide with a particle size of 80nm, 0.37g tin oxide with a particle size of 100nm modified by triethylvinylsilane, 0.13g tin oxide with a particle size of 250nm modified with methylvinyldiethoxysilane, 0.2g formazan Zinc oxide with a particle size of 300nm modified by phenylvinyl styrene silane was stirred and mixed evenly to obtain an intermediate solution;

[0035](3) Add 0.4g sodium bicarbonate, 0.6g ammonium bicarbonate and 10.04g intermediate solution to the remaining pr...

Embodiment 3

[0038] (1) 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 methylpropene sulfonate were mixed rapidly to obtain a prefabricated solution;

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

[0040] (3) Add 1.25g of ammonium bicarbonate and 8....

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