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LED UV curing permanent antistatic hardened coating for TAC film

A hard coating and antistatic technology, which is applied in the field of LEDUV curing permanent antistatic hard coating, can solve the problems of easy generation of static electricity, easy deformation of TAC, low thermal effect, etc., and achieve rapid curing, low price and light color Effect

Inactive Publication Date: 2019-11-29
无锡阿尔梅新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention compounded an initiator mixture suitable for LED UV light sources, and adopted a fluorine-containing sulfonimide salt compound as an antistatic additive. The prepared coating not only meets the requirements of permanent antistatic, high hardness, antistatic Scratch, high transparency and other requirements, especially can be cured by LED UV light source, low thermal effect, fast curing, especially suitable for TAC and other substrates that are easily deformed by heat, and can solve the problems of TAC easy to deform and easy to generate static electricity

Method used

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  • LED UV curing permanent antistatic hardened coating for TAC film
  • LED UV curing permanent antistatic hardened coating for TAC film

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Embodiment 1～5 and comparative example 1～2

[0035] Add high-functionality aliphatic urethane acrylate, alicyclic monofunctional acrylate monomer, photoinitiator, photosensitizer, antistatic agent and auxiliary agent sequentially according to the ratio shown in Table 1.

[0036] CN8885 obtained from Sartomer Company was used as acrylate oligomer A1;

[0037] 6195 obtained from Changxing Company was used as acrylate oligomer A2;

[0038] Em265 obtained from Changxing Company was used as acrylate monomer B1;

[0039] IBOA obtained from Akeli Company was used as acrylate monomer B2;

[0040] TPO obtained from Double Bond Corporation was used as photoinitiator C1;

[0041] 907 obtained from the market is used as photoinitiator C2;

[0042] Commercially available ITX was used as photosensitizer C3;

[0043] The 1-ethyl-3-methylimidazole bis-trifluoromethylsulfonimide salt obtained from the market is used as antistatic agent D;

[0044] Tego 432 obtained from Evonik was used as leveling agent E.

[0045] Formulation tabl...

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Abstract

The invention relates to an antistatic coating, in particular to an LED UV curing permanent antistatic hardened coating for a TAC film. The LED UV curing permanent antistatic hardened coating is prepared from the components: 5-55wt% of aliphatic polyurethane acrylate with the high functional degree, 5-45wt% of acrylate monomers, 1-8wt% of a photoinitiator, 1-8wt% of a photosensitizer, 0.1-5wt% ofan antistatic agent and 0.01-1wt% of an additive. The coating is cured by adopting an LED UV light source, and the prepared coating has a good leveling property, high transmittance, no Newton rings, high hardness and small shrinkage. The coating is cured by the LED UV light source, curing is fast, the thermal effect is low, and the coating is suitable for the optical-grade films of PET, TAC (triacetate fibers) and the like. The coated optical films have almost no curl, and the antistatic property is permanently maintained at 10<5>-10<8>[ohm] / cm<2> under low humidity.

Description

technical field [0001] The invention relates to an antistatic coating, in particular to an LED UV curing permanent antistatic hard coating for TAC film. [0002] technical background [0003] TAC, also known as triacetate fiber, is a material with excellent optical properties, high transmittance, and low birefringence. It is widely used in LCD and sunglasses industries. Behind its excellent performance, there are also some disadvantages, such as: It generates static electricity, is easily deformed by heat, has low surface hardness and high brittleness, so the TAC film is usually hardened. [0004] UV-curable coatings have the advantages of scratch resistance, high hardness, and good fullness after curing, and are widely used in the field of optical films. At present, the common light-cured coatings are cured by mercury lamp light source. The biggest disadvantage of mercury lamp curing is the thermal effect, high energy consumption, unpleasant ozone, and high-radiation glow t...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D5/24
CPCC09D5/24C09D175/14C08K5/435
Inventor 强志炯
Owner 无锡阿尔梅新材料有限公司
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