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Paint anti-foaming agent

A defoamer and paint technology, applied in the field of paint defoamers, can solve the problems of slow defoaming speed, poor solubility, poor foam suppression, etc., and achieve good compatibility, low raw material cost, good economic and social benefits Effect

Inactive Publication Date: 2017-01-11
刘夕平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicone-based defoamers have poor solubility, and have the characteristics of fast defoaming speed and good foam suppression at room temperature, but delamination occurs at high temperature, slow defoaming speed, and poor foam suppression.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0012] It includes the following components in parts by mass: 20 parts of polydimethylsiloxane, 5 parts of silicone paste, 5 parts of acrylate polymer, 10 parts of polyethylene glycol ether, 4 parts of hydrophobic white carbon black, distearin 10 parts of diethylamide, 10 parts of epichlorohydrin.

Embodiment approach 2

[0014] It includes the following components in parts by mass: 35 parts of polydimethylsiloxane, 10 parts of silicone paste, 13 parts of acrylate polymer, 15 parts of polyethylene glycol ether, 10 parts of hydrophobic white carbon black, distearin Acyl diethylamide 15 parts, epichlorohydrin 15 parts.

Embodiment approach 3

[0016] It includes the following components in parts by mass: 25 parts of polydimethylsiloxane, 6 parts of silicone paste, 8 parts of acrylate polymer, 11 parts of polyethylene glycol ether, 5 parts of hydrophobic white carbon black, distearin 11 parts of diethylamide, 11 parts of epichlorohydrin.

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PUM

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Abstract

The invention relates to the technical field of anti-foaming agents for industrial use, and especially relates to a paint anti-foaming agent. The paint anti-foaming agent comprises the following components in parts by mass: 20-35 parts of polydimethylsiloxane, 5-10 parts of silicon paste, 5-13 parts of acrylate polymers, 10-15 parts of polyglycol ether, 4-10 parts of hydrophobic white carbon black, 10-15 parts of ethylene distearamide and 10-15 parts of epichlorohydrin. By adopting the formula, the paint anti-foaming agent is not liable to demulsify, and has relatively good intermiscibility in the paint, so that no shrinkage cavity of the paint is caused; moreover, the paint anti-foaming agent disclosed by the invention is low in raw-material cost and free of pollution emission. Thus, the paint anti-foaming agent has good economic benefits and social benefits.

Description

technical field [0001] The invention relates to the technical field of defoamers for industrial use, in particular to a paint defoamer. Background technique [0002] Most defoamers are liquid compound products, which are mainly divided into three categories: mineral oils, silicones, and polyethers. Mineral oil defoamers are usually composed of carrier, active agent and so on. The carrier is a substance with low surface tension, and its function is to carry and dilute. The commonly used carriers are water, fatty alcohol, etc.; the function of the active agent is to suppress and eliminate foam, and the commonly used ones are wax, aliphatic amide, fat, etc. Silicone defoamers generally include polydimethylsiloxane and the like. Silicone-based defoamers have poor solubility, and have the characteristics of fast defoaming speed and good foam suppression at room temperature, but delamination occurs at high temperature, slow defoaming speed, and poor foam suppression. Polyether ...

Claims

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Application Information

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IPC IPC(8): C09D7/12
Inventor 刘夕平
Owner 刘夕平
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