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Non-silicon composite emulsion type antifoaming agent and preparation method thereof

A technology of composite emulsion and defoamer, which is applied in the direction of foam dispersion/prevention, can solve the problems of poor stability and delamination, and achieve the effects of good stability, excellent defoaming and antifoaming performance, and easy mass production

Active Publication Date: 2012-08-29
安徽銮威化工科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the storage time increases, delamination will occur, and the stability will be poor.

Method used

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  • Non-silicon composite emulsion type antifoaming agent and preparation method thereof
  • Non-silicon composite emulsion type antifoaming agent and preparation method thereof
  • Non-silicon composite emulsion type antifoaming agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]In parts by weight, 14 parts of No. 15 white oil were added to the reactor, and 3.7 parts of magnesium stearate, 7 parts of glyceryl polyether tristearate (CH 2 CHCH 2 {O(EO)x(PO)yOCC 17 h 35} 3 ) (x=5, Y=10), 1 part of EBO (ethylene bisoleic acid amide), warming up to 130±2°C, and after keeping warm for 1.5 hours, add 1 part of sorbitan trioleate, 80±2°C Incubate at 2°C for 0.5 hours, add 34 parts of thickener aqueous solution mixture (3.7 parts of polyoxyethylene sorbitan trioleate, 1.6 parts of hydroxyethyl cellulose) while stirring (stirring speed is 300-400rpm) 62.7 parts of water are pre-mixed evenly and kept at 85°C for 1.5 hours to form a stable colloid, which is the thickener aqueous solution mixture), after adding, keep warm for 0.5 hours and enter the pre-coarse emulsion obtained after homogenization in a homogenizer before adding 34 parts of the thickener aqueous solution mixture were stirred evenly and then homogenized in a homogenizer to obtain the non-...

Embodiment 2

[0042] In parts by weight, take 20.8 parts of No. 15 white oil and add it into a steam jacketed reactor, and add 1.6 parts of zinc stearate and 5.1 parts of glyceryl polyether tristearate under stirring conditions (stirring speed is 80-100rpm). Esters (CH 2 CHCH 2 {O(EO)x(PO)yOCC 17 h 35} 3 ) (x=5, Y=10), heat up to 130±2°C, keep warm for 1.5 hours, add 0.8 parts of sorbitan trioleate, keep warm at 80±2°C for 0.8 hours, stir after the heat preservation is over (stirring speed 300-400rpm) while adding 34 parts of thickener aqueous solution mixture (3 parts of polyoxyethylene sorbitan trioleate, 0.7 parts of carboxymethyl cellulose sodium into 64.3 parts of water, premixed and kept at 85 ° C 1.5 hours, in the form of a stable colloid, which is the thickener aqueous solution mixture), after adding, keep warm for 0.5 hours and enter the pre-coarse emulsion obtained after homogenization in a homogenizer, then add 34 parts of thickener aqueous solution mixture, stir evenly and t...

Embodiment 3

[0046] In parts by weight, take 19.2 parts of No. 15 white oil and add it into a reactor with a steam jacket, and add 2 parts of magnesium stearate and 6.4 parts of glycerol polyether tristearate under stirring conditions (stirring speed is 80-100rpm). Esters (CH 2 CHCH 2 {O(EO)x(PO)yOCC 17 h 35} 3 ) (x=5, Y=10), 1.2 parts of EBO (ethylene bisoleic acid amide), warming up to 130±2°C, after 1.5 hours of heat preservation, adding 0.5 parts of sorbitan trioleate, 80±2 Incubate at 2°C for 0.8 hours, and add 34 parts of thickener aqueous solution mixture (2 parts of polyoxyethylene sorbitan trioleate, 0.7 parts of hydroxyethyl cellulose) while stirring (stirring speed is 300-400rpm) 65.3 parts of water are pre-mixed evenly and kept at 85°C for 1.5 hours to form a stable colloid, which is the thickener aqueous solution mixture), after adding, keep warm for 0.8 hours and enter the pre-coarse emulsion obtained after homogenization in a homogenizer before adding 34 parts of the th...

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Abstract

The invention discloses a non-silicon composite emulsion type antifoaming agent. The stock solution of the non-silicon composite emulsion type antifoaming agent comprises the following components in percentage by mass: 30-70 percent of alkymer, 3-15 percent of antifoaming active ingredient, 5-15 percent of lipophilic emulsifier and hydrophilic emulsifier, 1-5 percent of thickening agent and 15-50 percent of antifoaming auxiliary agent, wherein the antifoaming auxiliary agent is tripolyglycerol ether fatty acid ester; and mixture of aqueous solution of the emulsifier and the thickening agent is added into the stock solution of the non-silicon antifoaming agent to emulsify under certain technological conditions to prepare the stable non-silicon composite emulsion antifoaming agent. The non-silicon antifoaming agent prepared by the invention is milk white liquid with viscous appearance, and has viscosity of 80-200 mpa.s, high stability and superior antifoaming performance.

Description

technical field [0001] The invention relates to the preparation of an emulsion type defoamer, in particular to a non-silicon composite emulsion type defoamer and a preparation method thereof. It belongs to the technical field of fine chemical additives. Background technique [0002] In many industrial production processes, a large amount of foam is often generated due to stirring, vibration, boiling and the addition of surfactants. If not properly suppressed, the foam will cause product quality and production capacity to decline. The most effective and economical method is Add defoamer. At present, there are many types of defoamers in the market, which can be divided into alcohols, fatty acids, amides, polyethers, polysiloxanes, etc. according to their chemical composition; according to the different active components, they can be divided into silicone defoamers, non- Silicon defoamer. Silicone defoaming additives are small, low surface tension, non-physiological toxicity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04
Inventor 朱明琴
Owner 安徽銮威化工科技开发有限公司
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