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PET (polyester) release film

A release film and film layer technology, applied in the field of release film, can solve the problems that mechanical properties cannot meet the needs of the industry, poor heat sealing performance of PET release film, low thermal shrinkage rate, etc., to achieve good thermal stability and The effect of thermal shrinkage rate, more diversified functions, and simple synthesis method

Inactive Publication Date: 2016-11-23
JIXIANGBAO TAICANG RELEASE MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing PET release film has poor heat sealing performance, low heat shrinkage rate, is not easy to recycle, and its mechanical properties cannot meet the needs of industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of PET release film, comprises film layer, and described film layer comprises following weight ratio raw material:

[0028] PET: 105 parts, PC: 11 parts, 2-ethyl methacrylate: 9.5 parts, polyurethane: 4.2 parts, polyimide: 2.58 parts, natural latex: 4.6 parts, calcium stearate: 2 parts, ethylene glycol Alcohol: 26 parts, silane coupling agent: 2.58 parts, antioxidant: 0.54 parts, light stabilizer: 0.6 parts, defoamer: 0.3 parts, thickener: 0.28 parts.

Embodiment 2

[0030] A kind of PET release film, comprises film layer, and described film layer comprises following weight ratio raw material:

[0031] PET: 95 parts, PC: 13 parts, 2-ethyl methacrylate: 10.5 parts, polyurethane: 4.5 parts, polyimide: 2.9 parts, natural latex: 3.4 parts, calcium stearate: 1.8 parts, ethylene glycol Alcohol: 20 parts, silane coupling agent: 2.3 parts, antioxidant: 0.35 parts, light stabilizer: 0.9 parts, defoamer: 0.15 parts, thickener: 0.36 parts.

Embodiment 3

[0033] A kind of PET release film, comprises film layer, and described film layer comprises following weight ratio raw material:

[0034] PET: 100 parts, PC: 10 parts, 2-ethyl methacrylate: 9 parts, polyurethane: 3 parts, polyimide: 2 parts, natural latex: 5.6 parts, calcium stearate: 1.5 parts, ethylene glycol Alcohol: 30 parts, silane coupling agent: 2.92 parts, antioxidant: 0.67 parts, light stabilizer: 0.15 parts, defoamer: 0.47 parts, thickener: 0.13 parts.

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PUM

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Abstract

The invention provides a PET release film, comprising a film layer, and the film layer includes the following raw materials by weight: PET, PC, 2-ethyl methacrylate, polyurethane, polyimide, natural latex, stearic acid Calcium, ethylene glycol, silane coupling agent, antioxidant, light stabilizer, defoamer and thickener; the PET release film has a smooth surface and good peel strength and tensile strength; The PET release film described has good thermal stability and thermal shrinkage rate, is resistant to light aging and can be used repeatedly; in addition, the PET release film provided by the present invention is environmentally friendly and non-toxic, has a simple synthesis method, and is easy to operate. The conditions are mild and suitable for industrial production.

Description

technical field [0001] The invention relates to a release film, in particular to a PET release film. Background technique [0002] Release film, also known as peeling film, isolation film, separation film, barrier film, release film, film, plastic film, hole masking film, silicone oil film, silicone oil paper, anti-adhesive film, slip film, Tianna paper, release film Paper, silliconfilm, release film, release. 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 silicon (silicone) release agent on the surface of the film material, such as PET, PE, OPP, etc.; It can show extremely light and stable release force for various organic pressure-sensitive adhesives (such as hot-melt adhesives, acrylic adhesives and rubber-based pressure-sensitive adhesives). [0003] Because the release film has the advantages of isolation, filling, protection, and easy peeling, it is widely used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L69/00C08L75/04C08L79/08C08L7/02C08K5/00C08K5/098C08K5/053C08K5/5425C08K5/544C08K5/134
CPCC08L67/02C08J5/18C08J2367/02C08J2469/00C08L2201/08C08L2203/16C08L2205/035
Inventor 於险峰
Owner JIXIANGBAO TAICANG RELEASE MATERIAL TECH CO LTD
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