Excellent-exhausting acrylic protection film and production method thereof

A technology of acrylic and protective film, applied in the direction of pressure-sensitive film/sheet, adhesive type, adhesive additive, etc., which can solve the problem of low peeling force of acrylic protective film, poor resistance to high temperature and high humidity, and normal use of the screen. Problems, to achieve the effect of excellent reworkability, low peeling force and cost advantage

Pending Publication Date: 2018-08-07
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

[0004] Aiming at the deficiencies of the prior art, the present invention provides an excellent exhaust acrylic protective film and its production method, which effectively solves the problem of poor resistance to high temperature and high humidity that cannot be solved by ordinary acrylic protective films, which affects the normal use of the screen At the same time, the acrylic protective film has low peeling force, excellent air release, low air bubble generation rate, reduces the difficulty of film sticking, and has excellent reworkability

Method used

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  • Excellent-exhausting acrylic protection film and production method thereof
  • Excellent-exhausting acrylic protection film and production method thereof
  • Excellent-exhausting acrylic protection film and production method thereof

Examples

Experimental program
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Effect test

example 1

[0040] Add 20g of acrylic resin to 20g of ethyl acetate to dilute, add 1g of curing agent, 0.5g of curing retarder, 0.1g of catalyst, 5g of exhaust accelerator in sequence, stir well and mix evenly to obtain a pressure-sensitive adhesive; use a 45μm wire bar to coat Coating the above mixture on the corona-treated side of the 36 μm PET substrate 1 to form a pressure-sensitive adhesive layer 2, and then drying it in a dryer at 105°C for 1 min. After leaving the oven, remove the release film 3 The molded surface is laminated on the pressure-sensitive adhesive layer 2 to obtain a finished acrylic protective film with excellent exhaust and exhaust.

example 2

[0042] Add 40g of acrylic resin to 20g of ethyl acetate to dilute, add 3g of curing agent, 2g of curing retarder, 0.2g of catalyst, 15g of exhaust accelerator in sequence, stir well and mix evenly to obtain a pressure-sensitive adhesive; The mixture is coated on the side of the 50 μm PET substrate 1 that has undergone corona treatment to form a pressure-sensitive adhesive layer 2, and then dried in a dryer at 105°C for 1 min. After leaving the dryer, remove the release film 3 The surface is covered with the pressure-sensitive adhesive layer 2 to obtain a finished acrylic protective film with excellent exhaust and exhaust.

example 3

[0044] Add 30g of acrylic resin to 20g of ethyl acetate to dilute, then add 1g of curing agent, 0.8g of curing retarder, 0.15g of catalyst, 10g of exhaust accelerator, stir well and mix evenly to obtain a pressure-sensitive adhesive; use a 45μm wire bar to coat Coating the above mixture on the corona-treated side of 25 μm PET substrate 1 to form a pressure-sensitive adhesive layer 2, and then drying it in a dryer at 105°C for 1 min. After leaving the oven, remove the release film 3 The molded surface is laminated on the pressure-sensitive adhesive layer 2 to obtain a finished acrylic protective film with excellent exhaust and exhaust.

[0045] The performance comparison between the excellent exhaust acrylic protective film provided by the present invention and the ordinary protective film is shown in the table below. It can be seen that, compared with the prior art, the excellent exhaust acrylic protective film provided by the present invention has the advantages of low peelin...

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Abstract

The invention discloses an excellent-exhausting acrylic protection film and a production method thereof. The excellent-exhausting acrylic protection film is composed of a PET base material, a pressure-sensitive adhesive layer and a release film, one side of the PET base material is subjected to corona treatment, the PET base material is fitted with the release film through the pressure-sensitive adhesive layer, and a pressure-sensitive adhesive comprises acrylic resin, solvate, curing agent, exhausting promoter and additive. The protection film ensures weatherability and is low in stripping force and excellent in exhausting.

Description

technical field [0001] The invention relates to the field of protective films, in particular to an acrylic protective film with excellent exhaust and a production method thereof. Background technique [0002] During the process of handling or production, the surface of the screen of electronic and electrical products is extremely susceptible to contact pollution or scratches. It is necessary to use a protective film to cover the surface to prevent it from being polluted or damaged. At the same time, in order to ensure that the product will not affect its own use after the protective film is applied, and out of heavy industrial considerations, there are certain requirements for the weather resistance, air release, peeling force and cleanliness of the protective film itself. [0003] Traditional acrylic protective films do not have excellent weather resistance and cannot be used for a long time in high temperature and high humidity environments, and the exhaust performance is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/38C09J133/00C09J133/12C09J133/10C09J11/06C09J11/00
CPCC09J11/00C09J11/06C09J133/00C09J133/10C09J133/12C08K5/10C08K5/29C09J2433/00C09J2467/006C09J2467/005C09J2301/312
Inventor 孙攀王玺王健
Owner 上海精珅新材料有限公司
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