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Environment-friendly release film

A release film, environmentally friendly technology, used in coatings, polyurea/polyurethane coatings, etc., can solve the problems of low tensile properties, low peel strength, high toxicity, etc., to improve flexibility, uniform strength, and improve affinity. Effect

Inactive Publication Date: 2016-07-06
李文东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solvent type has high cost, high toxicity, and serious pollution; while the emulsion type has the characteristics of non-toxic, non-polluting, and low cost, but it also has the defects of low peel strength and low tensile properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A kind of environment-friendly release film of the present invention will be further described below in combination with specific examples.

[0016] A kind of environment-friendly release film of the present invention comprises a film layer and a release layer positioned above the film layer, and the release layer comprises the following components in proportion by weight:

[0017] 40 parts of water-based polyethylene wax emulsion;

[0018] 50 parts of aqueous polyurethane emulsion;

[0019] 25 parts of water-based modified polyvinyl alcohol solution;

[0020] 7 parts of natural latex;

[0021] 4 parts of 3-aminopropyltriethoxysilane coupling agent;

[0022] Defoamer S120.4 parts;

[0023] 0.4 parts of methyl hydroxyethyl cellulose;

[0024] The weight ratio of the water-based modified polyvinyl alcohol solution includes the following components:

[0025] 90 parts of polyvinyl alcohol;

[0026] 750 parts of deionized water;

[0027] Modified calcium carbonate (p...

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Abstract

The invention discloses an environmentally friendly release film, which comprises a film layer and a release layer located on the film layer. The release layer comprises the following components in proportion by weight: 40 parts of water-based polyethylene wax emulsion; water-based polyurethane emulsion 50 parts; 25 parts of water-based modified polyvinyl alcohol solution; 7 parts of natural latex; 4 parts of silane coupling agent; 0.4 part of defoamer; 0.4 part of thickener; It includes the following components: 90 parts of polyvinyl alcohol; 750 parts of deionized water; 40 parts of modified calcium carbonate. The environmentally friendly release film of the invention has the characteristics of high peel strength and high tensile performance, and can be widely used in various fields of electronics, communication, machinery and the like.

Description

technical field [0001] The invention relates to a release film, in particular to an environment-friendly release film. Background technique [0002] Because the release film has the advantages of isolation, filling, protection, and easy peeling, it is widely used in various fields such as electronics, communications, and machinery. At present, the release film on the market mainly includes a film layer and a release layer coated on the film layer, wherein the release layer plays an important role in the release force (peelability, peel strength) of the release film. The existing release layer can be roughly divided into two types: solvent type and emulsion type. The solvent type has high cost, high toxicity, and serious pollution; while the emulsion type has the characteristics of non-toxic, non-polluting, and low cost, but it also has the defects of low peel strength and low tensile properties. With the development of social economy, people's awareness of environmental pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D123/06C09D129/04C09D7/12
CPCC09D175/04C08K2201/003C08L2205/035C09D7/62C09D7/63C09D7/65
Inventor 李文东
Owner 李文东
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