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Fluorine-containing polysiloxane release agent and preparation method thereof

A polysiloxane and release agent technology, applied in the direction of coating, etc., can solve the problems of fluorine release agent containing harmful solvents, insufficient adhesion fastness of substrates, etc., to avoid pollution, reduce costs, and simple process Effect

Active Publication Date: 2014-04-02
SHENZHEN GUANHENG NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, to provide a fluorine-containing polysiloxane release agent and a preparation method thereof, to solve the problem that the fluorine release agent contains harmful solvents and is bonded to the base material in the prior art. Technical problems of insufficient fastness

Method used

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  • Fluorine-containing polysiloxane release agent and preparation method thereof
  • Fluorine-containing polysiloxane release agent and preparation method thereof
  • Fluorine-containing polysiloxane release agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0073] A fluorine-containing polysiloxane release agent, comprising the following components by weight:

[0074] 100g viscosity is the vinyl fluorosilicone oil of 390mPa s (its structural formula is as shown in formula (1) below);

[0075] 3.25g hydrogen-containing silicone oil (its structure is shown in the following formula (2));

[0076] 0.1g fluorine-containing acetylenic alcohol inhibitor (its structure is shown in the following formula (3));

[0077] 500 ppm Karstedt platinum catalyst.

[0078]

[0079] The preparation method of this fluorine-containing polysiloxane release agent is:

[0080] Weigh each component respectively according to the formula of the above-mentioned fluorine-containing polysiloxane release agent;

[0081] The components are mixed to obtain a mixed material.

Embodiment 2

[0083] The fluorine-containing polysiloxane release agent was prepared according to the formulation components and steps of the above-mentioned Example 1, wherein the structure of the hydrogen-containing silicone oil remained unchanged, and the amounts of the fluorine-containing acetylenic alcohol and the platinum catalyst remained unchanged. Compared with Example 1, the difference is that the degree of polymerization of the chain unit of the vinyl fluorosilicone oil in this example changes, that is, a=60, b=10, d=8, f=180, and the a, b, d , f value and Si-H and CH=CH 2 Based on the molar ratio of 2:1, add the corresponding mass of hydrogen-containing silicone oil.

Embodiment 3

[0085] The fluorine-containing polysiloxane release agent was prepared according to the formulation components and steps of the above-mentioned Example 2. Compared with Example 2, the difference is that the degree of polymerization of the chain unit of vinyl fluorosilicone oil in this example changes, that is, a=90, b=11, d=5, f=220, and the a, b, d , f value and Si-H and CH=CH 2 Based on the molar ratio of 2:1, add the corresponding mass of hydrogen-containing silicone oil.

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Abstract

The invention discloses a fluorine-containing polysiloxane release agent and a preparation method thereof. The fluorine-containing polysiloxane release agent is prepared from vinyl fluoride silicone oil with an imide heterocyclic ring as a matrix matched with hydrogen-containing silicone oil, an inhibitor and a catalyst in a mixing manner. The fluorine-containing polysiloxane release agent does not utilize any solvent, so that the damage to the environment and a human body caused by an organic solvent is effectively avoided; the cured release film has a good anti-sticking effect by introducing a fluorine-containing long-chain substituent. Meanwhile, improvement of the adhesive fastness between the release agent and a polyester or polyimide film base material is facilitated by the imide heterocyclic substituent added to the vinyl fluoride silicone oil.

Description

technical field [0001] The invention relates to the field of release materials, in particular to a fluorine-containing polysiloxane release agent and a preparation method thereof. Background technique [0002] Pressure sensitive adhesive is the abbreviation of pressure sensitive adhesive, which is a kind of adhesive that is sensitive to pressure. Silicone pressure-sensitive adhesives generally refer to pressure-sensitive adhesives mainly composed of silicone polymers, or acrylic-silicone-modified rubber-type pressure-sensitive adhesives modified by silicone polymers. Compared with traditional acrylic pressure-sensitive adhesives and rubber-type pressure-sensitive adhesives, acrylic-silicone modified rubber-type pressure-sensitive adhesives have excellent chemical resistance, water resistance, oil resistance, solvent resistance, and oxidation resistance. Adhesive bonding of a variety of difficult-to-stick materials is widely used in transformers, circuit boards, mica pressur...

Claims

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Application Information

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IPC IPC(8): C09D183/07C09D183/08C09D183/05
Inventor 徐涛杨冲陈秀杰
Owner SHENZHEN GUANHENG NEW MATERIALS TECH
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