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Comprehensive silica gel release film application

A release film, silicone technology, applied in the direction of adhesives, adhesive additives, film/sheet release liners, etc., can solve the problems of reverse peeling, affecting the performance, and low residual adhesion rate of the release film.

Pending Publication Date: 2021-05-18
合肥美凯电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the low residual adhesion rate of the existing release film, anti-peeling often occurs, which seriously affects its performance.

Method used

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  • Comprehensive silica gel release film application
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Examples

Experimental program
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Effect test

Embodiment 2

[0026] Completely prepared according to the method of Example 1, the difference from Example 1 is: the coating amount of the silica gel adhesive layer is 7g / m3, and the silica gel adhesive layer includes the following raw materials in parts by mass: 55-58 parts of organic silica gel adhesive , 2-3 parts of coupling agent, 2-4 parts of antistatic agent, 8-10 parts of anchoring agent, 3-5 parts of catalyst, 4-6 parts of polycarbonate.

Embodiment 3

[0028] Completely prepared according to the method of Example 1, the difference between Example 1 and Example 2 is: the coating amount of the silica gel adhesive layer is 3g / m3, and the silica gel adhesive layer includes the following raw materials in parts by mass: organic silica gel adhesive 50-55 parts, 1-3 parts of coupling agent, 2-3 parts of antistatic agent, 7-10 parts of anchoring agent, 3-4 parts of catalyst, 3-5 parts of polycarbonate.

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Abstract

The invention relates to the technical field of release films, in particular to a comprehensive silica gel release film application, one side of a base material layer is coated with a silica gel adhesive layer by adopting a micro-concave coating method, and the base material layer and the silica gel adhesive layer are cross-linked, cured, dried, laminated with a release layer and cured. The release film is novel in design and exquisite in material and process, the high-viscosity silica gel and the tackifying resin are matched to promote a cross-linking reaction, the residual adhesion rate is increased to the maximum extent, the adhesive force of the silica gel adhesive layer and the base material layer is increased, the problem of reverse stripping or desiliconization caused by insufficient residual adhesion rate of a traditional release film is solved, and the overall quality of the release film is improved. By adding the polycarbonate, the molding shrinkage rate can be reduced, good dimensional stability can be realized, meanwhile, the impact resistance effect can be achieved through the high elastic coefficient of the release film, and the practicability is improved.

Description

technical field [0001] The invention relates to the technical field of release films, in particular to the application of a comprehensive silica gel release film. Background technique [0002] The release film refers to a film that can be distinguished on the surface of the film. The release film is not sticky or slightly sticky after contacting with specific materials under limited conditions. It is also called peeling film, isolation film, separation film, and adhesive film. , release film, thin film, plastic film, hole-masking film, silicone oil film, silicone oil paper, anti-adhesive film, pattern paper, slip film, thinner paper, release paper; [0003] Usually, in order to increase the release force of the plastic film, the plastic film will be treated with plasma, or coated with fluorine, or coated with a silicon release agent on the surface of the film material, such as PET, PE, OPP, etc., to make it For various organic pressure-sensitive adhesives (such as hot-melt ...

Claims

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Application Information

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IPC IPC(8): C09J7/25C09J7/30C09J7/40C09J11/08C09J183/04
CPCC09J11/08C09J183/04C09J2467/005C09J2467/006C09J7/255C09J7/30C09J7/40C09J7/403C08L69/00
Inventor 徐星
Owner 合肥美凯电子有限公司
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