A kind of UV adhesion-reducing protective film that is easy to peel off and preparation method thereof

A protective film and easy-peeling technology, which is applied in the direction of film/sheet adhesives, adhesives, adhesive types, etc., can solve the problems of restricting UV adhesion-reducing protective films, low initial peeling force, and damage to electronic products. Achieve excellent UV viscosity reduction effect, long shelf life, and improve work efficiency

Active Publication Date: 2021-12-03
广东硕成科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many problems in the commonly used UV adhesion-reducing protective films in the world, such as low initial peeling force, high initial viscosity, easy to automatically reduce viscosity after film formation, short validity period, easy to stick to dust, static electricity, residual glue, etc.
The existence of these problems will easily cause damage to electronic products when the UV anti-adhesive protective film is peeled off from the surface of electronic products, which seriously restricts the application of UV anti-adhesive protective film in semiconductors of electronic products, wafer protection, etc.

Method used

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  • A kind of UV adhesion-reducing protective film that is easy to peel off and preparation method thereof

Examples

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preparation example Construction

[0047] Second aspect of the present invention provides a kind of preparation method of easy-peelable UV debonding protective film, comprises the following steps:

[0048] 1) coating the cross-linking agent and primer on the surface of the substrate layer, drying and curing to form a primer layer on the surface of the substrate layer;

[0049] 2) Weigh the raw materials of each component of the adhesive layer according to the formula, add the acrylic acid monomer, accelerator, initiator, and diluent to the reaction vessel, then add ethyl acetate, mix and stir evenly, and evenly spread the obtained mixture on An adhesive layer is formed on the primer layer; a release film layer is pasted on the surface of the adhesive layer, and after reacting for 1.5-2 hours, it is cured to obtain the UV mucous-reducing film.

[0050] Preferably, the material of the protective film substrate layer includes but is not limited to polyethylene terephthalate, polyolefin, polyimide, polyether ether ...

Embodiment 1

[0062] An easy-peelable UV adhesion-reducing protective film comprises a protective film substrate layer, a primer layer, an adhesive layer and a release film layer from bottom to top.

[0063] The raw materials of the adhesive layer include, in parts by weight, 45 parts of acrylic acid monomer, 5 parts of accelerator, 2 parts of initiator and 30 parts of diluent.

[0064] The acrylic monomers include isooctyl acrylate, n-butyl acrylate, acrylic acid, methyl acrylate, and methyl methacrylate. The weight ratio of isooctyl acrylate, n-butyl acrylate, methacrylic acid, ethylene glycol dimethacrylate and methyl methacrylate is 10:8:3:5:0.8.

[0065] The accelerator includes tertiary amine compound, liquid paraffin and organic acid. The weight ratio of the tertiary amine compound, liquid paraffin and organic acid is 3:1:0.7.

[0066] The tertiary amine compound is N,N-dimethylaniline. The liquid paraffin was purchased from Xinji Haorui Petrochemical Co., Ltd.; the organic acid w...

Embodiment 2

[0080] An easy-peelable UV adhesion-reducing protective film, the specific implementation is the same as in Example 1, the difference is that the raw materials of the adhesive layer include, in parts by weight, 50 parts of acrylic acid monomers, 10 parts of accelerators, triggering 2 parts of agent, 40 parts of diluent.

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Abstract

The invention relates to the technical field of protective films, in particular to an easy-peelable UV adhesion-reducing protective film and a preparation method thereof. The UV adhesion-reducing protective film that is easy to peel is successively a protective film substrate layer, a primer layer, an adhesive layer and a release film layer from bottom to top. The easy-peelable UV viscosity-reducing protective film provided by the invention has an excellent UV viscosity-reducing effect after UV irradiation, effectively prevents damage to products after the protective film is peeled off, and has good stability and long shelf life.

Description

technical field [0001] The invention relates to the technical field of protective films, in particular to an easy-peelable UV adhesion-reducing protective film and a preparation method thereof. Background technique [0002] With the development of society, the preparation quality of electronic products is also required to be higher and higher, which also increases the requirements for materials closely related to the production of auxiliary electronic products. Among them, in the production process of electronic products, such as patch electronic components, processing of the surface of semiconductor wafers, positioning and cutting in the production process of chip inductors, etc., the role of protective film is inseparable. Auxiliary materials. [0003] UV viscosity-reducing protective film has many excellent properties such as fast curing speed, simple curing equipment, and complete peeling in a short time, and is widely used by people. However, there are many problems i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/25C09J7/30C09J7/50C09J133/08C09J11/08C09J11/06
CPCC09J11/06C09J11/08C09J133/064C09J2433/00C09J2467/006C09J2475/003C09J7/255C09J7/30C09J7/50C08L91/06C08K5/09C08K5/18
Inventor 柯跃虎诸葛锋宋亦健曾庆明
Owner 广东硕成科技股份有限公司
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