Fluorine release coating and preparation method thereof

A technology of fluorine and coatings, which is applied in the field of fluorine release coatings and its preparation, can solve the problems of unstable release force, low temperature resistance, and large release force, and achieve high release force and improved storage stability. The effect of stability and stable release force

Inactive Publication Date: 2021-07-30
TAIHU JINZHANG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the release agents currently used in the market have one or more defects such as easy silicon transfer, high temperature resistance, large release force and unstable release force.

Method used

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  • Fluorine release coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A fluorine release coating proposed by the present invention is obtained by mixing the main glue A and the main glue B according to the weight ratio of 4:1;

[0022] The main glue A is composed of raw materials including the following weight percentages: 6.5% of fluorine release agent I, 0.2% of crosslinking agent, 0.025% of catalyst I, and the balance is organic solvent; wherein, the fluorine The release agent I is polytetrafluoroethylene alkoxy resin, the organic solvent includes ethyl acetate and butanone, and its weight ratio is 1:3, the catalyst I is Dow 4000, and the crosslinking agent is Tao Shi 7560;

[0023] The main rubber B is composed of raw materials including the following weight percentages: 33% of fluorine release agent II, 0.27% of catalyst II, and the balance is fluorine-containing solvent; wherein, the fluorine release agent II is fluorine-containing polymer Acrylate, the fluorine-containing solvent includes tetrafluoropropanol and perfluorotrialkyla...

Embodiment 2

[0030] A fluorine release coating proposed by the present invention is obtained by mixing the main glue A and the main glue B according to the weight ratio of 7:1;

[0031] The main rubber A is composed of raw materials including the following weight percentages: 8% fluorine release agent I, 0.3% crosslinking agent, 0.03% catalyst I, and the balance is organic solvent; wherein, the fluorine release agent Agent I is fluorine-containing acrylate, the organic solvent includes ethyl propionate and methyl ethyl ketone, the weight ratio is 3:1, the catalyst I is Betley F50040, and the crosslinking agent is Jishike H- 165;

[0032] The main rubber B is composed of raw materials including the following weight percentages: 30% fluorine release agent II, 0.3% catalyst II, and the balance is fluorine-containing solvent; wherein, the fluorine release agent II is tetrafluoroethylene - Hexafluoropropylene copolymer, the fluorine-containing solvent includes tetrafluoropropanol and tridecafl...

Embodiment 3

[0036] A kind of fluorine release coating proposed by the present invention is obtained by mixing the main glue A and the main glue B according to the weight ratio of 10:1;

[0037] The main rubber A is composed of raw materials including the following weight percentages: 5% fluorine release agent I, 0.1% crosslinking agent, 0.01% catalyst I, and the balance is organic solvent; wherein, the fluorine release agent The agent I is polyvinylidene fluoride hexafluoropropylene polymer, the organic solvent includes ethyl acetate and methyl isobutyl ketone, the weight ratio is 4:1, the catalyst I is Betley F50040, and the cross-linked The agent is double 25;

[0038] The main rubber B is composed of raw materials including the following weight percentages: 25% of fluorine release agent II, 0.1% of catalyst II, and the balance is fluorine-containing solvent; wherein, the fluorine release agent II is polytetrafluoroethylene Ethylene, the fluorine-containing solvent includes octafluorop...

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Abstract

The invention discloses a fluorine release coating and a preparation method thereof, and relates to the technical field of release liners.The fluorine release coating is obtained by mixing a main adhesive A and a main adhesive B according to the weight ratio of (1-10): 1; the main adhesive A is prepared from the following raw materials in percentage by weight: 5 to 10 percent of fluorine release agent I, 0.1 to 0.5 percent of cross-linking agent, 0.01 to 0.05 percent of catalyst I and the balance of organic solvent; and the main adhesive B is prepared from the following raw materials in percentage by weight: 25 to 40 percent of fluorine release agent II, 0.1 to 0.4 percent of catalyst II and the balance of fluorine-containing solvent. The invention provides a double-component formula, the main adhesive B with low release force is obtained by selecting the fluorine release agent and the solvent in the main adhesive B, the main adhesive B is added to fill the microcosmic flatness problem formed by the main adhesive A, and the compounded fluorine release coating is stable in release force and adjustable in release force.

Description

technical field [0001] The invention relates to the technical field of release films, in particular to a fluorine release coating and a preparation method thereof. Background technique [0002] Release film refers to a special film with a lower surface energy than conventional films. The release film has no stickiness or slight stickiness after contact with specific materials under limited conditions. Usually, in order to increase the release force of the plastic film, a release agent is coated on the surface of the film (PET, PE, OPP, etc.) to make it suitable for various pressure-sensitive adhesives (such as silicone-based pressure-sensitive adhesives). adhesives, acrylic pressure sensitive adhesives and rubber based pressure sensitive adhesives) exhibit extremely light and consistent release force. According to the viscosity of the isolation pressure-sensitive adhesive, the release force is adjusted accordingly to achieve an extremely light and stable release force duri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/18C09D133/16C09D127/16C09D7/20
CPCC09D127/16C09D127/18C09D133/16C09D7/20C08L33/16C08L27/18C08L27/16
Inventor 施克炜王淦崧
Owner TAIHU JINZHANG TECH CO LTD
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