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Hardened protective film and production method thereof

A technology of protective film and hardened layer, which is applied in the direction of chemical instruments and methods, layered products, and synthetic resin layered products, etc. Effects and other problems, to achieve excellent resistance, reduce the difficulty of film sticking, and low bubble generation effect

Inactive Publication Date: 2016-11-23
上海精珅新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional protective film does not have the characteristics of wear resistance and scratch resistance, and it is very easy to cause surface damage during use, which will affect the visual effect and even affect the normal use of the pasting.

Method used

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  • Hardened protective film and production method thereof
  • Hardened protective film and production method thereof
  • Hardened protective film and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Add 20g of hexafunctional aliphatic urethane acrylate, 5g of ethoxylated pentaerythritol tetraacrylate, 1g of benzophenone and 0.5g of smoothing agent into 63.5g of butyl acetate, stir and mix uniformly to prepare a hardening solution; use a 12μm wire The bar coater coats the hardening liquid on one surface of the PET substrate 1, and then it is dried in a dryer at 80°C for 1 min, and then cured by ultraviolet light (the irradiating brightness of ultraviolet light is 600mj / cm 2 ), the semi-finished hardened protective film coated with the hardened layer 4 is prepared.

[0041] Add 20g of aromatic isocyanate, 2g of polyester polyol curing agent and 0.2g of conductive agent to 40g of ethyl acetate, stir and mix uniformly to prepare a pressure-sensitive adhesive; apply the pressure-sensitive adhesive with a 45μm wire rod applicator Cover the other side of the PET substrate 1 coated with the hardened layer, and dry it in a dryer at 80°C for 1 min. After leaving the oven, cover ...

Embodiment 2

[0043] Add 20g of hexafunctional aliphatic urethane acrylate, 7g of ethoxylated pentaerythritol tetraacrylate, 1.2g of benzophenone and 0.3g of smoothing agent to 50g of butyl acetate, stir and mix uniformly to prepare a hardening solution; use a 12μm wire The bar coater coats the hardening liquid on one surface of the PET substrate 1, and then it is dried in a dryer at 80°C for 1 min, and then cured by ultraviolet light (the irradiating brightness of ultraviolet light is 600mj / cm 2 ), the hardened protective film semi-finished product coated with the hardened layer 4 is prepared.

[0044] Add 20g of aromatic isocyanate, 2g of polyester polyol curing agent and 0.2g of conductive agent to 40g of ethyl acetate, stir and mix uniformly to prepare a pressure-sensitive adhesive; apply the pressure-sensitive adhesive with a 45μm wire rod applicator Coated on the other side of the PET substrate 1 with the hardened layer, dried in a dryer at 80°C for 1 min, after leaving the oven, the rele...

Embodiment 3

[0046] Add 20g of hexafunctional aliphatic urethane acrylate, 5g of ethoxylated pentaerythritol tetraacrylate, 1g of benzophenone and 0.5g of smoothing agent into 63.5g of butyl acetate, stir and mix uniformly to prepare a hardening solution; use a 12μm wire The bar coater coats the hardening liquid on one surface of the PET substrate 1, and then it is dried in a dryer at 80°C for 1 min, and then cured by ultraviolet light (the irradiating brightness of ultraviolet light is 600mj / cm 2 ), the hardened protective film semi-finished product coated with the hardened layer 4 is prepared.

[0047] Add 20g of aromatic isocyanate, 3g of polyester polyol curing agent and 0.5g of conductive agent to 30g of ethyl acetate, stir and mix uniformly to prepare a pressure-sensitive adhesive; use a 45μm wire rod applicator to coat the pressure-sensitive adhesive Coated on the other side of the PET substrate 1 with the hardened layer, dried in a dryer at 80°C for 1 min, after leaving the oven, the r...

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Abstract

The invention discloses a hardened protective film and a production method thereof. The hardened protective film is composed of a PET substrate, a pressure-sensitive rubber layer, a release film and a hardened layer, wherein one side of the PET substrate is a hardened treatment layer, and the other side of the PET substrate is bonded with the pressure-sensitive rubber layer through the release film. The protective film is high in surface hardness and has the advantages of being scratch-proof, excellent in abrasion resistance and the like. In addition, the protective film is high in light transmittance and excellent in exhausting property and weatherability and does not cause pollution to an adhered object.

Description

Technical field [0001] The invention relates to the field of protective films, in particular to a hardened protective film and a production method thereof. Background technique [0002] In the process of transportation or production and use of electronic and electrical products, the surface of the screen is very susceptible to contact pollution or abrasion scratches. A protective film must be used to cover the surface to prevent contamination or damage. At the same time, in order to ensure that the product does not affect its own use after being covered with the protective film, there are certain requirements for the permeability, wear resistance and cleanliness of the protective film itself. [0003] The traditional protective film does not have the characteristics of abrasion resistance and scratch resistance, and it is easy to cause surface damage during use, which will affect the visual effect and even affect the normal use of the sticker. Especially for the protective film us...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J175/06C09J175/08C09D175/14B32B27/06B32B33/00
Inventor 孙攀王玺
Owner 上海精珅新材料有限公司
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