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Defoaming agent and preparation method thereof

A defoamer and antistatic agent technology, applied in the field of defoamer and its preparation, can solve the problems of prolonged cycle, waste of raw materials and products, production capacity limitation, etc., and achieves strong foam suppression ability, fast defoaming speed, excellent The effect of defoaming

Inactive Publication Date: 2020-01-17
青岛中宝硅材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing defoamers often cause waste of raw materials and products when used, and prolong the reaction cycle, which finally leads to greatly limited production capacity and affects the quality of products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0016]The invention provides a technical solution: a defoamer and its preparation method, including water-soluble silicone oil: polysiloxane is firstly hydrolyzed by chlorosilane, and then condensed with polyether, yellow or brown oily viscous Viscous transparent liquid, relative density (25℃ / 25℃) 1.04~1.08, acid value<0.2mgKOH / g, viscosity (50℃)(1.5~5)×10-4m2 / s; silicone grease: refined synthetic oil As a base oil thickening inorganic thickener, refined with structural stabilizers and anti-corrosion additives; Span S-80: yellow oily liquid, dispersible in warm water and ethanol, soluble in propylene glycol, liquid paraffin, ethanol , methanol or ethyl acetate and other organic solvents, HLB=4.3; Tween T-80: easily soluble in water, soluble in ethanol, vegetable oil, ethyl acetate, methanol, toluene, insoluble in mineral oil, gelatinous at low temperature , recovered after heating, with special odor and slightly bitter taste; myristyl alcohol ether MOA-4: easily soluble in oil...

Embodiment 1

[0031] 1) First add 13kg of water into the heating kettle, then add 2.2kg of stearic acid, heat, stir, and then ready to use;

[0032] 2) Water-soluble silicone oil: It is firstly hydrolyzed by chlorosilane to form polysiloxane, and then condensed with polyether, yellow or brown oily viscous transparent liquid, relative density (25°C / 25°C) 1.04~1.08 , acid value <0.2mgKOH / g, viscosity (50°C) (1.5~5)×10-4m2 / s, 201-500CS silicone oil and 201-1000CS silicone oil, composed of 200kg silicone mixture and silicone grease 4kg, Span S- 80 8.4kg, Tween T-804kg, myristyl ether MOA-4 2.6kg and antistatic agent SE-103kg form an emulsifier mixture, add it to the emulsifier and stir evenly;

[0033] 3) Then add the solution in the above step 1), stir and emulsify;

[0034] 4) Then add 240ml of propylene glycol;

[0035] 5) Pour cooling water into the interlayer of the emulsifying machine and cool it down to normal temperature to produce finished products.

Embodiment 2

[0037] 1) First add 3.25kg of water into the heating kettle, then add 0.55kg of stearic acid, heat, stir, and then use it;

[0038] 2) Water-soluble silicone oil: It is firstly hydrolyzed by chlorosilane to form polysiloxane, and then condensed with polyether, yellow or brown oily viscous transparent liquid, relative density (25°C / 25°C) 1.04~1.08 , acid value <0.2mgKOH / g, viscosity (50°C) (1.5~5)×10-4m2 / s, 201-500CS silicone oil and 201-1000CS silicone oil, composed of 50kg of silicone mixture and 1kg of silicone grease, Span S- 80 2.1kg, Tween T-80 1kg, tetradecyl alcohol ether MOA-4 0.65kg and antistatic agent SE-100.75kg to form an emulsifier mixture, add it to the emulsifier and stir evenly;

[0039] 3) Then add the solution in the above step 1), stir and emulsify;

[0040] 4) Then add propylene glycol 60ml;

[0041] 5) Pour cooling water into the interlayer of the emulsifying machine and cool it down to normal temperature to produce finished products.

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Abstract

The invention discloses a defoaming agent and a preparation method thereof. The defoaming agent comprises water-soluble silicone oil, silicone grease, Span-80, Tween-80, tetradecyl alcohol ether MOA-4, an anti-static agent SE-10, water, stearic acid, propylene glycol, 201-500 CS silicone oil and 201-1000 CS silicone oil. The preparation method comprises following steps: preparing an organic silicon mixture from water-soluble silicone oil, 201-500 CS silicone oil and 201-1000 CS silicone oil; preparing an emulsifier mixture from silicone grease, span-80, Tween-80, tetradecyl alcohol ether MOA-4and antistatic agent SE-10, wherein adding 6.5 kg of water into a heating kettle, adding 1.1 kg of stearic acid, heating, and stirring for later use; preparing 100kg of the organic silicon mixture from water-soluble silicone oil, 201-500CS silicone oil and 201-1000CS silicone oil; adding the emulsifier mixture composed of 2 kg of silicone grease, 4.2 kg of Span S-80, 2 kg of Tween T-80, 1.3 kg oftetradecyl alcohol ether MOA-4 and 1.5kg of the antistatic agent SE-10 into an emulsifying machine to be uniformly stirred; adding the solution obtained in the step (1), stirring, and emulsifying; adding 120ml of propylene glycol; introducing cooling water into an interlayer of the emulsifying machine, and cooling to normal temperature to obtain a finished product.

Description

technical field [0001] The invention relates to the technical field of defoamers, in particular to a defoamer and a preparation method thereof. Background technique [0002] At present, there are many types of defoamers at home and abroad, also known as defoamers, which are food additives that reduce surface tension during food processing, inhibit foam generation or eliminate foam that has already occurred. The defoamers approved for use in my country include emulsified silicone oil, high-carbon alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene alcohol amine ether, polyoxypropylene glyceryl ether and polyoxypropylene polyoxygen There are 7 types of vinyl glyceryl ether and polydimethylsiloxane, and most of the defoamers are liquid compound products, which are mainly divided into three categories: mineral oil, silicone, and polyether. Mineral oil defoamers are usually composed of carrier, active agent a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04
CPCB01D19/0409
Inventor 刘在东朗月风朗显峰
Owner 青岛中宝硅材料科技有限公司
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