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Solvent-free organic silicon release agent and preparation method thereof

A silicone, solvent-free technology, applied in the direction of coating, etc., can solve the problems of endangering human health, safety problems, environmental pollution, etc., and achieve the effects of low production cost, easy peeling, and simple preparation method

Inactive Publication Date: 2016-02-24
SUZHOU XINDEJIE ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The volatilization of the solvent in the solvent-based stripping agent will endanger human health and pollute the environment. At the same time, it is flammable, and it needs to be equipped with flame-proof equipment. There are safety problems in use, and it is no longer used in developed countries.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A solvent-free silicone release agent, comprising in parts by weight: 45 parts of vinyl-terminated polydimethylsiloxane, 45 parts of vinyl-terminated polymethylvinylsiloxane, and 1 part of sodium methyl silicate , 1 part of ethyl sodium silicate, 1 part of methyl hydrogen silicone oil, 1 part of acrylic acid, 1 part of sodium chloroplatinate, 2 parts of 1,3-divinyltetramethyldisiloxane, 1 part of sodium bicarbonate , 5 parts of ethanol, 1 part of methyl salicylate, 1 part of pentaerythritol, and 0.1 part of diphenylamine.

[0014] The preparation method of the above-mentioned solvent-free silicone stripping agent is as follows: first mix sodium chloroplatinate, 1,3-divinyltetramethyldisiloxane, sodium bicarbonate and ethanol, heat to 70°C and stir for 10 minutes, wait for After cooling the resulting mixture to 25°C, add vinyl-terminated polydimethylsiloxane, vinyl-terminated polymethylvinylsiloxane, sodium methyl silicate, sodium ethyl silicate, methyl hydrogen silicone...

Embodiment 2

[0016] A solvent-free silicone release agent, comprising in parts by weight: 47 parts of vinyl-terminated polydimethylsiloxane, 47 parts of vinyl-terminated polymethylvinylsiloxane, and 1.5 parts of sodium methyl silicate , 1.5 parts of sodium ethyl silicate, 1.5 parts of methyl hydrogen silicone oil, 1.5 parts of acrylic acid, 1.2 parts of sodium chloroplatinate, 2.5 parts of 1,3-divinyltetramethyldisiloxane, 1.2 parts of sodium bicarbonate , 6 parts of ethanol, 1.2 parts of methyl salicylate, 1.2 parts of pentaerythritol, and 0.2 parts of diphenylamine.

[0017] The preparation method of the above-mentioned solvent-free silicone stripping agent is as follows: first mix sodium chloroplatinate, 1,3-divinyltetramethyldisiloxane, sodium bicarbonate and ethanol, heat to 72°C and stir for 12 minutes, wait for After cooling the resulting mixture to 27°C, add vinyl-terminated polydimethylsiloxane, vinyl-terminated polymethylvinylsiloxane, sodium methyl silicate, sodium ethyl silicat...

Embodiment 3

[0019] A solvent-free silicone release agent, comprising in parts by weight: 53 parts of vinyl-terminated polydimethylsiloxane, 53 parts of vinyl-terminated polymethylvinylsiloxane, and 2.5 parts of sodium methyl silicate , 2.5 parts of ethyl sodium silicate, 2.5 parts of methyl hydrogen silicone oil, 2.5 parts of acrylic acid, 1.8 parts of sodium chloroplatinate, 3.5 parts of 1,3-divinyltetramethyldisiloxane, 1.8 parts of sodium bicarbonate , 9 parts of ethanol, 1.8 parts of methyl salicylate, 1.8 parts of pentaerythritol, and 0.4 parts of diphenylamine.

[0020] The preparation method of the above-mentioned solvent-free silicone stripping agent is as follows: first mix sodium chloroplatinate, 1,3-divinyltetramethyldisiloxane, sodium bicarbonate and ethanol, heat to 78°C and stir for 18 minutes, wait for After cooling the resulting mixture to 33°C, add vinyl-terminated polydimethylsiloxane, vinyl-terminated polymethylvinylsiloxane, sodium methyl silicate, sodium ethyl silicat...

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Abstract

The invention provides a solvent-free organic silicon release agent and a preparation method thereof. The solvent-free organic silicon release agent comprises the following raw materials: vinyl-terminated polydimethylsiloxane, vinyl-terminated polymethylvinylsiloxane, sodium methyl silicate, sodium ethyl silicate, methyl hydrogen silicone oil, acrylic acid, sodium chloroplatinate, 1,3-divinyltetramethyldisiloxane, sodium bicarbonate, ethanol, methyl salicylate, pentaerythritol and diphenylamine. The preparation method comprises the following steps: mixing sodium chloroplatinate, 1,3-divinyltetramethyldisiloxane, sodium bicarbonate and ethanol; heating the obtained mixture to be 70-80 DEG C; stirring for 10-20 min; adding the remaining ingredients after cooling to be 25-35 DEG C; uniformly stirring to obtain the solvent-free organic silicon release agent . The solvent-free organic silicon release agent is good in coating property, favorable in release effect and smooth in release surface, and the preparation method is simple in step, easy to control, easy for industrial production and low in production cost.

Description

technical field [0001] The invention relates to the field of stripping agents, in particular to a solvent-free silicone stripping agent and a preparation method thereof. Background technique [0002] Stripping agent is also called release agent, anti-sticking agent and release agent. From the type of product, silicone release agents can be divided into three categories: solvent type, emulsion type and solvent-free type. The volatilization of the solvent in the solvent-based stripping agent will endanger human health, pollute the environment and be flammable. It also needs to be equipped with flame-proof equipment. There are safety problems in use, and developed countries are no longer using it. In addition, there is the problem of solvent recovery. To solve this problem, it takes a lot of manpower and material resources; while the emulsion type stripper consumes a lot of energy for drying, and the production is inconvenient; It has the advantages of no pollution to the env...

Claims

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Application Information

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IPC IPC(8): C09D183/07C09D5/20C09D7/12
Inventor 郑春秋
Owner SUZHOU XINDEJIE ELECTRONICS CO LTD
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