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Quick powder defoamer

A technology of defoaming agent and powder, which is applied in the direction of liquid degassing, foam dispersion/prevention, chemical instruments and methods, etc. It can solve the problems of slow defoaming speed and poor water solubility, and achieve strong foam suppression and heat resistance Good, simple process effect

Inactive Publication Date: 2017-06-09
广东中联邦精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above deficiencies in the prior art, the object of the present invention is to provide a fast powder defoamer and a preparation method thereof, aiming at solving the problems of slow defoaming speed and poor water solubility in the powder defoamer of the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A fast powder defoamer, by weight percentage, comprising:

[0017] Dimethicone 11.5%;

[0018] Polyether modified silicone oil 6.1%;

[0019] Sodium sulfate 81.5%;

[0020] Silicone resin 0.4%;

[0021] White carbon black 0.3%;

[0022] Dispersant 0.2%.

[0023] First, mix polyether modified silicone oil, polydimethyl silicone oil, silicone resin, white carbon black, and dispersant in proportion to make a silicone paste with a viscosity of 100-1000mPa.s. Add sodium sulfate to the vessel, add silicone paste while stirring, heat to 60°C, keep stirring for 46 minutes, cool to room temperature, and obtain the product. Wherein the dispersant is a dispersant containing active groups.

Embodiment 2

[0025] A kind of rapid powder defoamer provided by the present invention, by weight percentage, comprises:

[0026] Dimethicone 12.1 %;

[0027] Polyether modified silicone oil 6.5%;

[0028] Sodium sulfate 80.5%;

[0029] Silicone resin 0.4%;

[0030] White carbon black 0.3%;

[0031] Dispersant 0.2%.

[0032] First, mix polyether modified silicone oil, polydimethyl silicone oil, silicone resin, white carbon black, and dispersant in proportion to make a silicone paste with a viscosity of 100-1000mPa.s.

[0033] Add sodium sulfate to the container, add silicone paste while stirring, heat up to 60°C, continue stirring for 46 minutes, cool to room temperature, and obtain the product; the dispersant is a dispersant containing active groups.

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PUM

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Abstract

The invention discloses a quick powder defoamer, comprising, by weight, 10-15% of polydimethyl silicone oil, 6-8% of polyether-modified silicone oil, 75-82% of sodium sulfate, 0.1-0.4% of silicon resin, 0.2-0.4 part of white carbon black, and 0.15-0.2% of a dispersant. The quick powder defoamer is prepared by: mixing the polyether-modified silicone oil, polydimethyl silicone oil, silicon resin, white carbon black and dispersant according to a certain proportion to obtain silicone cream having viscosity of 100-1000 mPa.s; adding sodium sulfate into a vessel, adding the silicone cream in sequence white stirring, heating to 60 DEG C, stirring continuously for 46 min, and cooling to normal temperature to obtain the finished product, the quick powder defoamer.

Description

technical field [0001] The invention relates to the field of defoamers, in particular to fast powder defoamers in the fields of industrial cleaning, cleaning, metal cleaning agent production and the like. Background technique [0002] In the fields of industrial cleaning, washing, metal cleaning, etc., a large amount of surfactants are used, and there are certain high pressure and fast flow in the process of these fields, resulting in a large amount of harmful foam, which will adhere to objects, water treatment When the water quality is not up to standard, it will have a harmful impact on the environment. At present, there are many types of defoamers on the market, but their water solubility is not good, which has also created an increase in defective products in industrial cleaning, washing, and metal cleaning. The low speed leads to high cost. The product of the present invention has very fast defoaming speed, very good water solubility, and good foam suppression performan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04
CPCB01D19/0404B01D19/0409B01D19/0422
Inventor 王梅玲
Owner 广东中联邦精细化工有限公司
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