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Thermochromic polyester release film and preparation method thereof

A thermochromic and release film technology, applied in the direction of coating, can solve the problems of irreversible color and unfavorable product application, and achieve the effect of good heat resistance, good camouflage and warning effect, and stable release force

Pending Publication Date: 2021-12-31
JIANGSU SHUANGXING COLOR PLASTIC NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that the thermochromic compound used in the thermochromic release film is one of triaryl methane compounds, spiropyran compounds or Schiff base compounds, and these compounds can only be used under high temperature conditions. Color change occurs, and the color is irreversible, which is not conducive to the application of the product

Method used

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  • Thermochromic polyester release film and preparation method thereof
  • Thermochromic polyester release film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A thermochromic polyester release film, comprising a polyester base film and a release coating coated on one side of the polyester base film, the polyester base film is made of anti-aging polyester resin, antistatic polyester resin It is composed of thermochromic polyester resin, and the weight percentage of each component is: 80% of anti-aging polyester resin, 10% of antistatic polyester resin and 10% of thermochromic polyester resin.

[0025] The polyester base film has a single-layer structure, which is prepared by melt extrusion and biaxial stretching, and has a thickness of 40 microns.

[0026] The release coating is formed by coating the release coating liquid, and then baked and cured, with a thickness of 2 microns.

[0027] The release coating liquid is prepared by main agent, auxiliary agent and solvent, wherein the main agent is polyacrylate resin, octadecyltrimethoxysilane, fluorine-containing polymer, and the weight percentage accounts for about 20% of the r...

Embodiment 2

[0033]A thermochromic polyester release film, comprising a polyester base film and a release coating coated on one side of the polyester base film, the polyester base film is made of anti-aging polyester resin, antistatic polyester resin It is composed of thermochromic polyester resin, and the weight percentage of each component is: 85% of anti-aging polyester resin, 8% of antistatic polyester resin and 7% of thermochromic polyester resin.

[0034] The polyester base film has a single-layer structure, which is prepared by melt extrusion and biaxial stretching, and has a thickness of 60 microns.

[0035] The release coating is formed by coating the release coating solution, and then baked and cured, with a thickness of 5 microns.

[0036] The release coating liquid is prepared by main agent, auxiliary agent and solvent, wherein the main agent is polyacrylate resin, octadecyltrimethoxysilane, fluorine-containing polymer, and the weight percentage accounts for about 25% of the re...

Embodiment 3

[0042] A thermochromic polyester release film, comprising a polyester base film and a release coating coated on one side of the polyester base film, the polyester base film is made of anti-aging polyester resin, antistatic polyester resin It is composed of thermochromic polyester resin, and the weight percentage of each component is: 90% of antiaging polyester resin, 5% of antistatic polyester resin and 5% of thermochromic polyester resin.

[0043] The polyester base film has a single-layer structure, which is prepared by melt extrusion and biaxial stretching, and has a thickness of 100 microns.

[0044] The release coating is formed by coating the release coating solution, and then baked and cured, with a thickness of 10 microns.

[0045] The release coating liquid is prepared by main agent, auxiliary agent and solvent, wherein the main agent is polyacrylate resin, octadecyltrimethoxysilane, fluorine-containing polymer, and the weight percentage accounts for about 30% of the ...

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Abstract

The invention relates to a thermochromic polyester release film. The thermochromic polyester release film comprises a polyester base film and a release coating which coats the surface of one side of the polyester base film; the polyester base film is composed of anti-aging polyester resin, antistatic polyester resin and thermochromic polyester resin, the weight percentage of each component is as follows: 80-90% of anti-aging polyester resin, 5-10% of antistatic polyester resin and 5-10% of thermochromic polyester resin; the polyester base film is of a single-layer structure and is prepared through melt extrusion and two-way stretching, and the thickness of the polyester base film is 50-200 microns; and the release coating is formed by coating release coating liquid and carrying out baking and curing treatment, and the thickness of the release coating is 2-8 microns. The thermochromic polyester release film provided by the invention is prepared by the processes of preparation of the release coating liquid and the base film, single-layer extrusion, coating curing and the like, not only has better heat resistance, antistatic property, aging resistance and migration resistance, but also can develop and change color at normal temperature and high temperature.

Description

technical field [0001] The invention relates to a functional polyester release film, in particular to a thermochromic polyester release film and a preparation method thereof, belonging to the technical field of polymer thermochromic materials. Background technique [0002] Release film, also known as peeling film, isolation film, release film, separation film, adhesive barrier film, silicone oil film, anti-adhesive film, slip film, thinner paper, silicone oil paper, release paper, etc., refers to the specific material Thin films that are separable upon contact under limited conditions. The polyester release film prepared by PET resin has the advantages of high transparency, good gloss, and stable release force, so it has been widely used in the fields of electronics, communications, machinery, and decoration. [0003] In recent years, with the progress of science and technology, functional polyester release film has been developed and applied. Thermochromic polyester relea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08J5/18C08L67/00
CPCC08J7/0427C08J5/18C08J2367/00C08J2467/00C08J2433/04
Inventor 吴培服吴迪王琪池卫钱向飞
Owner JIANGSU SHUANGXING COLOR PLASTIC NEW MATERIALS
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