Graphene modified organosilicone liquid defoaming agent

A liquid defoamer, graphene modification technology, applied in liquid degassing, foam dispersion/prevention, chemical instruments and methods, etc., can solve the problems of high temperature resistance, high price, acid and alkali resistance, etc. The effect of fast foaming, moderate price and low surface tension

Inactive Publication Date: 2017-12-15
徐州中泰能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Defoamers are mainly divided into mineral oils, silicones and polyethers, and these three types of defoamers have the following defects to some extent: (1) The defoaming performance and foam suppression of polyether defoamers Compared with silicone defoamers, its production performance is poor, but its toxicity is small, and it can withstand high temperature, acid and alkali; (2) The defoaming performance and antifoaming performance of silicone defoamers are better, but they are not High temperature resistance, not acid and alkali resistance; (3) The performance of mineral oil defoamers is between polyether defoamers and silicone defoamers, but its price is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A graphene-modified silicone liquid defoamer, consisting of the following components in parts by weight: 50 parts of silicone active matter, 20 parts of emulsifier, 2 parts of graphene, 1 part of thickener, and 1 part of coupling agent .

[0015] The silicone active substance includes one or more compounds of methyl silicone oil, methyl phenyl silicone oil, ethyl silicone oil, polyether modified silicone oil, and dimethylsiloxane hydrolyzate; the emulsification The auxiliary agent is a nonionic surfactant, and the nonionic surfactant includes one or more compounds of alkylphenol polyoxyethylene ether, polyoxyethylene ether, and fatty alcohol polyoxyethylene ether; the graphene size 25-35μm; the thickener is one or more of hydroxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose; the coupling agent is A-151, A One or more compound of -171, A-172, A-174, A-187.

Embodiment 2

[0017] A graphene-modified silicone liquid defoamer, consisting of the following components in parts by weight: 60 parts of silicone active matter, 25 parts of emulsifier, 3 parts of graphene, 1.2 parts of thickener, 1.2 parts of coupling agent .

[0018] The silicone active substance includes one or more compounds of methyl silicone oil, methyl phenyl silicone oil, ethyl silicone oil, polyether modified silicone oil, and dimethylsiloxane hydrolyzate; the emulsification The auxiliary agent is a nonionic surfactant, and the nonionic surfactant includes one or more compounds of alkylphenol polyoxyethylene ether, polyoxyethylene ether, and fatty alcohol polyoxyethylene ether; the graphene size 25-35μm; the thickener is one or more of hydroxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose; the coupling agent is A-151, A One or more compound of -171, A-172, A-174, A-187.

Embodiment 3

[0020] A graphene-modified silicone liquid defoamer, consisting of the following components in parts by weight: 70 parts of silicone active matter, 30 parts of emulsifier, 5 parts of graphene, 1.5 parts of thickener, 1.5 parts of coupling agent .

[0021] The silicone active substance includes one or more compoundings of methyl silicone oil, methylphenyl silicone oil, ethyl silicone oil, polyether modified silicone oil, and dimethylsiloxane hydrolyzate; the emulsifying The auxiliary agent is a nonionic surfactant, and the nonionic surfactant includes one or more compounds of alkylphenol polyoxyethylene ether, polyoxyethylene ether, and fatty alcohol polyoxyethylene ether; the graphene size 25-35μm; the thickener is one or more of hydroxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose; the coupling agent is A-151, A One or more compound of -171, A-172, A-174, A-187.

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Abstract

Disclosed is a graphene modified organosilicone liquid defoaming agent. The agent is prepared from, by weight, 50-70 parts of organosilicone active matter, 20-30 parts of emulgator, 2-5 parts of graphene, 1-1.5 parts of thickening agent and 1-1.5 parts of coupling agent. The organosilicone active matter is formed by compounding one or more of methyl silicone oil, methyl phenyl silicone oil, ethyl silicone oil, polyether modified silicone oil and dimethyl siloxane hydrolysate; the emulgator is a non-ionic surface active agent and is formed by compounding one or more of alkylphenol polyoxyethylene ether, polyoxyethylene ether and fatty alcohol-polyoxyethylene ether; the thickening agent is formed by compounding one or more of hydroxymethyl cellulose, hydroxyethyl cellulose and hydroxypropyl cellulose. The defoaming agent has the performance of high temperature resistance, acid and alkali resistance and hydrophile of oxidized graphene, the defoaming performance of the defoaming agent can be enhanced, and the foam generating performance is inhibited. The invention further provides a preparation method of the defoaming agent.

Description

technical field [0001] The invention relates to the field of fine chemical additives, in particular to a graphene-modified organosilicon liquid defoamer. Background technique [0002] Defoamers are mainly divided into mineral oils, silicones and polyethers, and these three types of defoamers have the following defects to some extent: (1) The defoaming performance and foam suppression of polyether defoamers Compared with silicone defoamers, its production performance is poor, but its toxicity is small, and it can withstand high temperature, acid and alkali; (2) The defoaming performance and antifoaming performance of silicone defoamers are better, but they are not High temperature resistance, not acid and alkali resistance; (3) The performance of mineral oil defoamers is between polyether defoamers and silicone defoamers, but its price is higher. [0003] Therefore, it is necessary to develop a moderately priced defoamer, so that it can not only play the characteristics of f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04
CPCB01D19/0409B01D19/0404
Inventor 林爱平
Owner 徐州中泰能源科技有限公司
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