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Emulsion type release agent and preparation method thereof

A release agent and emulsion type technology, applied in the field of emulsion release agent and its preparation, can solve the problems of residual adhesive force, no mention of foaming performance of anchoring working fluid, no mention of release force, etc.

Inactive Publication Date: 2019-03-22
杭州崇耀科技发展有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no mention of the release force, the value of the residual adhesive force, and the anchoring property and the foaming performance of the working fluid are not mentioned in the patent.

Method used

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  • Emulsion type release agent and preparation method thereof
  • Emulsion type release agent and preparation method thereof
  • Emulsion type release agent and preparation method thereof

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preparation example Construction

[0050] The application also provides a preparation method of emulsion type release agent, comprising the following steps:

[0051] 20-50wt% vinyl silicone oil, 0.5-10wt% hydrogen-containing silicone oil, 5-20wt% polyvinyl alcohol aqueous solution, 6-15wt% stabilizer, 0.3-3wt% emulsifier, 0.5-1.0wt% Add 30-50wt% deionized water after mixing the inhibitor and 5-10wt% anchoring agent, and homogenize after phase inversion to obtain component A;

[0052] Mix 5-20wt% vinyl silicone oil, 60-2520ppm catalyst, 10-20wt% polyvinyl alcohol aqueous solution and 0.3-3wt% emulsifier, add 30-50wt% deionized water, and homogenize after phase inversion , get B component;

[0053] Mix component A, component B and deionized water in a mass ratio of 20:1:100 to obtain an emulsion release agent.

[0054] In the process of preparing emulsion-type release agent, firstly prepare component A according to the above ratio, that is, vinyl silicone oil, hydrogen-containing silicone oil, polyvinyl alcohol...

Embodiment 1

[0061] 40wt% of vinyl-terminated vinyl silicone oil with a viscosity of 500cps and a mass content of vinyl group of 1.2%, 3wt% of a hydrogen-containing silicone oil with a viscosity of 25cps and a mass content of hydrogen group of 0.6%, a viscosity of 40cps, a degree of alcoholysis of 88%, and a molecular weight of 100000~ 120000 polyvinyl alcohol aqueous solution 8wt%, water-based alkyd resin (brand YG-AK337) 9wt%, polyether modified silicone oil (brand 7123) 0.5wt%, 3-methyl-1-butyn-3-ol 0.5wt %, vinyltriethoxysilane 5.0wt%, and add it into a high-speed disperser to disperse evenly, then slowly add deionized water 34wt%, after the phase inversion is completed, transfer it to a high-pressure homogenizer at 30MPa for 3 times to obtain group A Minute;

[0062] 15wt% of vinyl-terminated vinyl silicone oil with a viscosity of 500cps and a vinyl mass content of 1.2%, 1560ppm of a platinum-vinylsiloxane complex, 15wt of a polyvinyl alcohol aqueous solution with a viscosity of 40cps...

Embodiment 2

[0067] 39.5wt% of vinyl-terminated vinyl silicone oil with a viscosity of 500cps and a vinyl mass content of 1.2%, 3.5wt% of a hydrogen-containing silicone oil with a viscosity of 25cps and a hydrogen-based mass content of 0.6%, a viscosity of 40cps, an alcoholysis degree of 88%, and a molecular weight of 100000~120000 polyvinyl alcohol aqueous solution 8wt%, water-based alkyd resin (brand YG-AK337) 9wt%, polyether modified silicone oil (brand 7123) 0.5wt%, 3-methyl-1-butyn-3-ol 0.5wt%, vinyl triethoxysilane 5.0wt%, add in the high-speed disperser and disperse evenly, then slowly add deionized water 34wt%, after the phase inversion is completed, transfer to the high-pressure homogenizer for 3 times at 30MPa to obtain A component;

[0068] 15wt% of vinyl-terminated vinyl silicone oil with a viscosity of 500cps and a vinyl mass content of 1.2%, 1560ppm of a platinum-vinylsiloxane complex, 15wt of a polyvinyl alcohol aqueous solution with a viscosity of 40cps, an alcoholysis degr...

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Abstract

The invention provides an emulsion type release agent. The emulsion type release agent is prepared from the following raw materials of 20 to 50wt% of vinyl silicone oil, 0.5 to 10wt% of hydrogen-containing silicone oil, 5 to 20wt% of polyvinyl alcohol water solution, 6 to 15wt% of a stabilizer, 0.3 to 3wt% of an emulsifier, a 0.5 to 20 ppm catalyst, 0.5 to 1.0wt% of an inhibitor, 5 to 10wt% of ananchoring agent, and 30 to 50wt% of deionized water, wherein the molar ratio of the hydrogen group in the hydrogen-containing silicone oil to the vinyl group in the vinyl silicone oil is (2.0 to 3.5):1. The emulsion type release agent is a safe and environment-friendly type emulsion type release agent with the advantages that the curing speed is quick, the anchoring property is good, the release force is light, and the grafting rate of residue is high.

Description

technical field [0001] The present invention relates to the field of release agent technology, in particular to an emulsion type release agent and a preparation method thereof. Background technique [0002] Silicone release agent, also known as silicone anti-sticking agent, is coated on a specific substrate (such as paper, film, etc.) and undergoes a certain curing reaction to form a layer of coating with isolation and anti-sticking effects. Strictly speaking, silicone release agent can be regarded as a coating with silicone as a film-forming substance. Paper or film is called release paper or release film after coating and curing silicone release agent, which has a very wide range of market applications, whether it is labels, tapes, advertising materials, or medical supplies, hygiene products, food processing and packaging In the fields of express envelopes and electronic mold stickers, release paper or release film plays an important role in protecting adhesives from poll...

Claims

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Application Information

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IPC IPC(8): C09D183/07C09D183/05C09D129/04C09D7/63C09D7/65
CPCC08L2205/025C08L2205/035C09D7/63C09D7/65C09D183/04C08L83/04C08L29/04C08K5/5425C08K5/05C08K5/5435
Inventor 刘常峰江小牛余逸梵钱国胜宋新锋张小娜
Owner 杭州崇耀科技发展有限公司
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