An antistatic protective film

An antistatic and protective film technology, applied in conductive coatings, coatings, etc., can solve the problems of loss of antistatic performance, antistatic coating peeling, stains, etc., to achieve good antistatic effect, stable antistatic performance, The effect of reducing surface resistance

Active Publication Date: 2020-03-24
HEFEI LUCKY SCI & TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the use of these antistatic protective films, stains will inevitably be stained on the surface. In the process of using solvents to clean the outer layer of the protective film, ordinary antistatic protective films will easily cause the antistatic coating to fall off and lose the antistatic performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Prepare acrylate resin with 10g methyl methacrylate, 5g sodium p-styrene sulfonate, 5g ethyl acrylate, 5g acrylic acid, 2.5g hydroxyethyl acrylate, 2.5g diacetone acrylamide, the preparation method of acrylate resin and CN103554340B In the same way, polymerize at 70°C for 4 hours, then lower the temperature of the synthesized acrylate resin to 50°C, add 2.25g of poly-3,4-dioxyethylenethiophene and continue stirring for 1.5 hours before discharging to obtain conductive acrylic acid ester resin.

[0028] Take the above-mentioned 15g conductive acrylate resin and 2.5g methyl etherified hexamethylolmelamine formaldehyde resin, 2.5g BYK348, 20g isopropanol and 60g deionized water, and mix them uniformly to obtain an antistatic coating solution. Coated on optical grade polyester film and dried to obtain an antistatic protective film.

[0029] The performance test results are shown in Table 1.

Embodiment 2

[0031] Prepare acrylate resin with 25g vinyl acetate, 55g butyl acrylate, 10g sodium p-styrenesulfonate, 5g methacrylic acid, 10g hydroxypropyl acrylate, 5g diacetone acrylamide, the preparation method of acrylate resin is the same as CN103554340B, Polymerize at 75°C for 3.5 hours, then lower the temperature of the synthesized acrylate resin to 50°C, add 0.8g polythiophene-3-[2-(2-methoxyethoxy)ethoxy]-2,5 -Dibase, 3.9g poly-3,4-dioxyethylenethiophene, 0.8g poly-3-thiophene acetic acid were stirred and kept for 1 hour, and then discharged to obtain conductive acrylate resin.

[0032] Weigh the above 35g conductive acrylate resin, 0.4g trimethylolmelamine formaldehyde resin, 0.4g methylolated hexamethylolmelamine formaldehyde resin, 1.5g BYK333, 1g BYK380N, 40g isopropanol and 20g deionized water, mix well Finally, an antistatic coating solution is obtained, and the coating solution is coated on an optical-grade polyester film, and dried to obtain an antistatic protective film....

Embodiment 3

[0034] Acrylate resin is prepared with 10g methyl methacrylate, 45g butyl acrylate, 25g isooctyl acrylate, 15 p-styrene sodium sulfonate, 7g acrylic acid, 15g hydroxyethyl acrylate, 8g hydroxypropyl acrylate. The preparation method is the same as that of CN103554340 B, polymerize at 80°C for 3 hours, then lower the temperature of the synthesized acrylate resin to 45°C, add 2.7g of polythiophene-3-[2-(2-methoxyethoxy)ethyl Oxy]-2,5-diyl, 8.9g of poly-3,4-dioxyethylenethiophene, and 0.9g of poly-3-thiopheneacetic acid were stirred and kept for 1 hour, and then discharged to obtain a conductive acrylate resin.

[0035] Weigh the above-mentioned 20g conductive acrylate resin, 0.1g methylolated hexamethylolmelamine formaldehyde resin, 0.1g trimethylolmelamine formaldehyde resin, 1g BYK348, 0.5g BYK380N, 10g isopropanol, 5g butanol, 5g ethylene glycol Alcohol and 40g of deionized water were mixed evenly to obtain an antistatic coating solution, which was coated on an optical-grade p...

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Abstract

The invention relates to an antistatic protective film, which coats a layer of antistatic coating on the surface of a polyester film, and the antistatic coating is composed of a conductive acrylic resin, a curing agent, a leveling agent and a solvent, wherein the conductive acrylic The content of the ester resin is 15-35 parts by weight, the curing agent is 0.2-2.5 parts by weight, the leveling agent is 1.5-2.5 parts by weight, and the solvent is 60-80 parts by weight. The antistatic coating of the antistatic protective film is wiped with deionized water, ethanol, isopropanol, toluene, butanone and ethyl acetate, and the antistatic coating does not fall off, and has solvent resistance.

Description

technical field [0001] The invention relates to an antistatic protective film and a preparation method thereof, belonging to the technical field of thin films. Background technique [0002] With the rapid development of the display industry, production and transportation of optical films such as polarizers, retardation plates, lens films for displays, anti-reflection films, hard coat films, transparent conductive films for touch panels, and products using them For optical products such as displays, the outermost layer is covered with an antistatic protective film to avoid misjudgment by optical inspection due to contamination during manufacturing and transportation. In the use of these antistatic protective films, stains will inevitably be stained on the surface. In the process of cleaning the outer layer of the protective film with solvents, the antistatic coating is easy to cause the antistatic coating to fall off, and the antistatic performance is lost. [0003] Chinese ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/12C09D133/08C09D5/24C08F220/18C08F220/14C08F230/04C08F220/06C08F220/28C08F220/54C08F218/08
CPCC09D133/08C09D133/12C08F220/14C08F220/18C09D5/24C08L2205/02C08L2205/03C08L2201/04C08F220/1804C08L61/32C08L61/28C08F220/06C08F220/281C08F220/54C08F230/04C08F220/1808C08F220/1802C08F218/08
Inventor 周守发牛正富安佳丽何晶晶郑云霞王辉崔书海
Owner HEFEI LUCKY SCI & TECH IND
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