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a wetting agent

A technology of wetting agent and defoamer, which is applied in the application field of water-based coating preparation, can solve the problems of high dynamic surface tension, inconvenient use of coating, and reduced wetting effect, and achieve low static/dynamic surface tension and reduce foam stability performance, improve the effect of dispersion

Active Publication Date: 2016-11-30
SHENYANG SHUNFENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the commonly used wetting agent in the paint industry is alkylphenol polyoxyethylene ether, which is replaced by fatty alcohol polyoxyethylene ether due to environmental protection reasons, but the pour point of fatty alcohol polyoxyethylene ether is relatively high, usually lower than 10 degrees Celsius It will lose fluidity, which brings inconvenience to the use of coatings in areas with four distinct seasons; in addition, such substances have high foaming properties and high dynamic surface tension, which will cause negative effects on foam stabilization for high-speed grinding, dispersion or application
Branched chain alkyl polyol comb structure ethoxy ether contains more hydroxyl groups, which is easy to be oxidized and the wetting effect is reduced

Method used

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Embodiment 1

[0018] The invention provides a wetting agent, which is composed of the following raw materials in parts by weight: 60 parts of branched chain alkyl polyol comb structure ethoxy ether, 20 parts of fatty alcohol polyoxyethylene ether, and 10 parts of catechin , 0.3 parts of thearubigin, 3 parts of nano-molecular sieves, 5 parts of Nordes C15 bactericidal preservative, 3 parts of higher carbon alcohol, and 2 parts of water.

[0019] The structure of the branched chain alkyl polyol comb structure ethoxy ether is:

[0020]

[0021] R is greater than or equal to 3 alkyl branched chains (n1, n2, n3, n4 are positive integers).

[0022] The branched alkyl polyol comb structure ethoxy ether does not contain APEO, does not contain solvent, has good water solubility, can effectively improve the dispersibility of pigments, improve the color development performance of water-based coatings, and can help improve the coating film luster.

[0023] The structure of the fatty alcohol polyox...

Embodiment 2

[0036] The invention provides a wetting agent, which is composed of the following raw materials in parts by weight: 50 parts of branched chain alkyl polyol comb structure ethoxy ether, 28 parts of fatty alcohol polyoxyethylene ether, and 7.5 parts of catechin , 0.4 parts of thearubigin, 4 parts of nano-molecular sieves, 3 parts of 1,2-benzisothiazolin-3-one, 1.5 parts of glycerol trihydroxypolyether, and 1.1 parts of water.

Embodiment 3

[0038] The invention provides a wetting agent, which is composed of the following raw materials in parts by weight: 41 parts of branched chain alkyl polyol comb structure ethoxy ether, 30 parts of fatty alcohol polyoxyethylene ether, and 6.5 parts of catechin , 0.5 parts of thearubigin, 5 parts of nano-molecular sieves, 1 part of Dovihill-75, 3 parts of GP type defoamer, and 1 part of water.

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Abstract

The invention discloses a wetting agent. The wetting agent is prepared from the following raw materials in parts by weight: 40-50 parts of branched alkyl polyol comb-like ethyoxyl ether, 20-40 parts of fatty alcohol-polyoxyethylene ether, 6-10 parts of catechinic acid. 0.1-0.5 part of thearubigin, 3-10 parts of a nanometer molecular sieve, 1-5 parts of an anticorrosive agent, 1-5 parts of a defoaming agent and 0.5-2 parts of water. The nanometer molecular sieve is composed of mesoporous silica particles of which the particle size is within a range from 60nm to 100nm, a pore channel is of a regular porous structure and the pore diameter is 2nm to 10nm. The wetting agent disclosed by the invention is used for preparing a compound by using different nonionic surface active substances; the pour point of the wetting agent is reduced below -12 DEG C, and the foam stability is effectively reduced as well, so pumping and feeding can be realized in a low-temperature environment, and the requirements of industrial automatic metering are satisfied.

Description

technical field [0001] The invention relates to the application field of water-based paint preparation, in particular to a wetting agent. Background technique [0002] Water-based coatings refer to coatings that use water as a solvent or as a dispersion medium, including water-soluble coatings, water-dilutable coatings, and water-dispersible coatings (latex coatings). Water-soluble coatings use water-soluble resins as film-forming materials, represented by polyvinyl alcohol and its various modified products, in addition to water-soluble alkyd resins, water-soluble epoxy resins, and inorganic polymer water-based resins. The pigments and fillers used in water-based paints must maintain high chemical stability in water. Therefore, the pigments and fillers are preferably inert and not too water-soluble, and different particle sizes and shapes are selected according to the use and performance requirements of the paint. filler. [0003] Grinding and wetting agent for pigments an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/12
CPCC08K5/06C08K7/26C08K13/04C08K2201/011C09D7/63C09D7/65C09D7/67C09D7/70
Inventor 刘春峰吴晓天李德刚张伟
Owner SHENYANG SHUNFENG NEW MATERIAL CO LTD