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Aqueous emulsion non-silicon defoamer and preparation method thereof

A technology of defoamer and water emulsion, which is applied in the field of water emulsion type non-silicon defoamer and its preparation, which can solve the problems of performance limitation or inhibition, and achieve low molecular weight, good wetting performance and long foam suppression time Effect

Active Publication Date: 2012-01-04
JIANGSU SAIOUXINYUE DEFOAMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The acetylene alcohol surfactant introduced in the patent CN95101894.9 is a new type of nonionic surfactant developed in the past ten years. The nonionic surfactant has the functions of washing, dispersing, wetting and solubilizing, but a certain Surfactants often can only play one role in practical applications, while other properties will be limited or inhibited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Mix 1 part of ethylene glycol with 48 parts of water to form an aqueous solution, raise the temperature of the aqueous solution to 30°C and keep it, add 8 parts of 4-octylphenol ethoxylate, 8 parts of methyl butynol, 15 parts of 4-methyl -2-hexanol and 20 parts of polyoxypropylene polyoxyethylene glyceryl ether were added to the system, stirred at 600 rpm for 1 hour to form a pre-emulsion, and the pre-emulsion was homogenized for 2.5 hours to obtain a defoamer with a particle size of 200 nm.

Embodiment 2

[0029] Mix 1 part of ethylene glycol with 62 parts of water to form an aqueous solution, raise the temperature of the aqueous solution to 50°C and keep it, add 6 parts of sodium fatty acid methyl ester sulfonate, 7 parts of 2,5-dimethyl-3-hexyne-2, Add 5-diol, 9 parts of isooctyl alcohol and 15 parts of polyoxypropylene glyceryl ether to the system, stir at 600 rpm for 0.5 hours to form a pre-emulsion, and homogenize the pre-emulsion for 2 hours to obtain a defoamer with a particle size of 200 nm.

Embodiment 3

[0031] Mix 1 part of ethylene glycol with 69 parts of water to form an aqueous solution, raise the temperature of the aqueous solution to 40°C and keep it, add 5 parts of sorbitan monostearate, 5 parts of 3,5-dimethyl-1-hexyne -3-alcohol, 5 parts of 3-heptanol and 15 parts of polyoxypropylene polyoxyethylene glyceryl ether were added to the system, stirred at 600rpm for 2 hours to form a pre-emulsion, and the pre-emulsion was homogenized for 3 hours to obtain a 200nm particle size. foaming agent.

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Abstract

The invention discloses an aqueous emulsion non-silicon defoamer and a preparation method thereof. The defoamer consists of a material with defoaming activity, an emulsifying material and a dispersion medium, wherein the material with defoaming activity consist of alkynol, higher aliphatic alcohol and glyceryl polyether; the emulsifying material consists of anionic emulsifier and non-ionic emulsifier; and the dispersion medium consists of water and glycol. The defoamer of the invention has excellent defoaming and anti-foaming functions and high wettability and stability and is particular suitable for water-based paint, oil ink and other systems.

Description

technical field [0001] The invention relates to a defoamer and a preparation method thereof, in particular to an aqueous emulsion type non-silicon defoamer applied to a water-based system and a preparation method thereof. Background technique [0002] As we all know, the solvent system has entered a mature period and has begun to transition to a recession period. In recent years, under the market requirements of environmental protection, safety and health, water-based coatings and inks have become the most promising development due to their unique advantages. Variety, the water-based system is in the growth stage, the development speed is very fast, the quality of the variety is becoming more and more perfect, its status and technology are constantly improving, it is very likely to completely replace other inks and occupy the printing market, more and more attention is being paid, and the use surface is gradually increasing. expand. In China, the proportion of water-based s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/42B01D19/04C09K23/42
Inventor 杨柏忠
Owner JIANGSU SAIOUXINYUE DEFOAMER
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