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A kind of transparent PET optical hardening film based on radiation curing and preparation method thereof

A radiation curing and hardening film technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of low hardness and low longitudinal shrinkage rate of PET optical hardened film, achieve low longitudinal shrinkage rate, increase compatibility, The effect of high hardness

Active Publication Date: 2022-07-29
佛山市菲锐表面科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a transparent PET optical hardening film based on radiation curing and its preparation method, which solves the problem of low hardness of the existing PET optical hardening film. The PET optical hardening film has high hardness, scratch resistance, transparent , high light transmittance, and low longitudinal shrinkage

Method used

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  • A kind of transparent PET optical hardening film based on radiation curing and preparation method thereof
  • A kind of transparent PET optical hardening film based on radiation curing and preparation method thereof
  • A kind of transparent PET optical hardening film based on radiation curing and preparation method thereof

Examples

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Embodiment 1

[0031] A transparent PET optical hardening film based on radiation curing, the optical hardening film is composed of a PET base film and a high hardness transparent coating coated on the base film. The high-hardness transparent coating contains the following components by weight: 35% photocurable organosilazane resin (OPSZ, acrylic acid is 30% by weight, weight average molecular weight is 200,000), 10% Sartomer's CN9013NS (aliphatic urethane acrylate oligomer, functionality=9, as UV-curable acrylic resin), 15% nano-silica, 35% flake nano-ceria, 2.5% dipentaerythritol hexaacrylate (DPHA , as reactive diluent), 2% Irgacure184 (as photoinitiator), 0.15% TEGO4000 (as leveling agent), 0.25% BYK2150 (as dispersant) and 0.1% BYK051 (as defoamer). Among them, D50=10nm and D90=50nm of nano-silica. D50=30nm, D90=100nm of nano ceria.

[0032] The preparation method of the above-mentioned optical hardened film is proportioned according to the content of the above components, and the det...

Embodiment 2

[0041] A transparent PET optical hardening film based on radiation curing, which is basically the same as that of Example 1, except that the high-hardness transparent coating of this example does not contain OPSZ, and the weight percentage of Sartomer's CN9013NS is 45% , other components and contents are the same as in Example 1.

[0042] The preparation process steps of this example are the same as those of Example 1, and the prepared PET optical hardened film is denoted as product 2.

Embodiment 3

[0044] A transparent PET optical hardening film based on radiation curing, which is basically the same as that of Example 1, except that in the high-hardness transparent coating of this example, the weight percent of OPSZ is 10%, and the weight percent of Sartomer's CN9013NS is 10%. is 35%, and other components and contents are the same as those in Example 1.

[0045] The preparation process steps of this example are the same as those of Example 1, and the prepared PET optical hardening film is denoted as product 3.

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Abstract

The invention discloses a transparent PET optical hardened film based on radiation curing and a preparation method thereof. The PET optical hardened film is composed of a PET base film and a high-hardness transparent coating coated on the base film; the high-hardness transparent The coating comprises the following components by weight: 0-60% of photocurable organosilazane resin, 10-70% of UV-curable acrylic resin, 5-60% of nano-silica, 5-50% of flakes Nano ceria, 0-20% active diluent, 1-10% photoinitiator, 0-5% auxiliary agent; wherein, the auxiliary agent includes: any one or two of leveling agent, dispersant and defoamer more than one species. The PET optical hardening film of the present invention has the characteristics of high light transmittance, low haze, high hardness, scratch resistance, and low longitudinal shrinkage.

Description

technical field [0001] The invention relates to a PET optical hardening film, in particular to a transparent PET optical hardening film based on radiation curing and a preparation method thereof. Background technique [0002] PET (polyethylene terephthalate) is a hard coating layer coated on the PET base film to improve the hardness of the film and prevent it from being damaged and affecting its function. At present, PET surface hardening film is widely used on the surface of mobile phones, displays, electrical appliances and decorative materials, etc., which play the role of scratch resistance and anti-cracking. However, the surface hardness of pencil scratches of PET surface hardening film is up to 3-4H. In actual use, some sharp objects can still scratch the surface. If you want to achieve high scratch resistance hardness, such as 8H, 9H , Generally speaking, the thickness of the coating film should reach about 30 μm, but the thicker the coating film thickness, the highe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/046C08J5/18C09D183/16C09D175/14C09D7/61C08L67/02
CPCC08J7/046C08J7/0427C08J5/18C09D183/16C09D7/61C09D7/70C09D7/67C08J2367/02C08J2483/16C08J2475/14C08K2201/011C08L2201/10C08L75/14C08K7/00C08K3/36
Inventor 刘庆会彭晓翊
Owner 佛山市菲锐表面科技有限公司
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