High-molecular copolymer dispersing agent for water-based paint and preparation method of high-molecular copolymer dispersing agent

A high molecular copolymer, water-based coating technology, applied in the direction of coating, etc., can solve the problems of weak steric hindrance and repulsion, reduce the hydrophilic effect of dispersant, uneven length of hydrophilic chain, etc., and achieve fast and excellent viscosity reduction. Adsorption and fixation sites, simple and easy-to-operate production process

Pending Publication Date: 2022-08-09
SHANGHAI BAOLIJIA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some unstructured traditional small-molecule dispersants and common high-molecular dispersants used in the prior art have too few adsorption points and weak adsorption force for anchor groups to disperse coatings, and the length of the hydrophilic chain Inhomogeneity, on the contrary, reduces the hydrophilic effect of the dispersant, resulting in weaker steric hindrance and repulsion

Method used

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  • High-molecular copolymer dispersing agent for water-based paint and preparation method of high-molecular copolymer dispersing agent
  • High-molecular copolymer dispersing agent for water-based paint and preparation method of high-molecular copolymer dispersing agent
  • High-molecular copolymer dispersing agent for water-based paint and preparation method of high-molecular copolymer dispersing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Example 1 The first aspect of the embodiment provides a hydraulic co -parts polymer dispersing agent. The raw materials include the following weights: 23.4 copies of acrylic, 1.3 copies of methyl acrocylite, 1.3 sodium lycrazethylene sulfonate, 1.5 parts over 1.5 parts too much Ammonium sulfate, 1.2 sodium virgins, 27.5 parts of ammonia, and 43.8 parts of deodorite water.

[0049] In this embodiment, the mass score of ammonia water is 25 %.

[0050] In this embodiment, the solid content of polymer cluster dispersers is 30 %.

[0051] The second aspect of this embodiment provides a preparation method for water -based coatings to use polymer cluster dispersing agents. The steps include the following steps: (1) Mixing acrylic and methampitorate, mixing uniformly, mixing the single body, mixing a single body mix Liquid; (2) Sulfate ammonium sulfate in 10 parts of ionic water to make dissolved liquid A; dissolve sodium sodium phosphate in 10 copies of ionic water to make dissolv...

Embodiment 2

[0053] Example 2 provides a hydraulic co -parts polymer dispersant for the first aspect. The raw materials include the following weights: 22 parts of acrylic, 0.5 parts of styrene, sodium methyl acrylic sulfate, and 0.6 ammonium sulfate. 3 sodium sodium sodium sulfate, 26 parts of ammonia, 45.4 part of ionic water.

[0054] In this embodiment, the mass score of ammonia water is 25 %.

[0055] In this embodiment, the solid content of polymer cluster dispersers is 31 %.

[0056] The second aspect of this embodiment provides a preparation method for water -based coatings to use polymer cluster dispersers. The steps include the following steps: (1) mixing acrylic and styrene, mixing uniformly, and mixing solution; 2) Solubbing ammonium sulfate in 10 parts of ionic water to make dissolved liquid A; dissolve sodium coke sulfate in 10 copies of ionic water to make dissolved solution B; (3) with condenser, thermometer, mixer, mixer The reaction bottle is added with sodium acrylic sulfate ...

Embodiment 3

[0058] Example 3 provides a hydraulic co-parts polymer dispersant for water-based coatings. The raw materials include the following weights: 20.8 copies of acrylic, 1.3 parts of methyl acrylic, 1.3 parts of acrylic acid, 2.6 parts of 2-acrylamidel- 2-methyl propyaline, 1.45 parts of ammonium sulfate, 1.35 sodium sodium phosphate, 27.5 parts of ammonia water, and 43.7 parts of ionic water.

[0059] In this embodiment, the mass score of ammonia water is 25 %.

[0060] In this embodiment, the solid content of polymer cluster dispersers is 30 %.

[0061] The second aspect of this embodiment provides a preparation method for water -based coatings for a polymer cluster dispersing agent. The steps include the following steps: (1) the acrylic, methyl acrylic, and acrylic acid, mix and mix well, and make a single order. Body mixed liquid; (2) dissolved ammonium sulfate in 10 parts of ionic water to make dissolved solution A; dissolved sodium sodium phosphate in 10 parts of ionic water, and...

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Abstract

The invention discloses a high-molecular copolymer dispersing agent for water-based paint. The high-molecular copolymer dispersing agent is prepared from the following raw materials in parts by weight: 10-50 parts of carboxyl monomer, 0.1-10 parts of ester monomer / styrene, 0.1-15 parts of auxiliaries, 0.1-10 parts of peroxide / persulfide, 0.1-10 parts of sodium salt, 10-50 parts of alkaline agent and 20-80 parts of deionized water. The prepared high-molecular copolymer dispersing agent has good stability and dispersity, effectively enhances the using effect of the water-based paint, prolongs the service life of the water-based paint, is suitable for being popularized in the field of paint, and has wide development prospects.

Description

Technical field [0001] The present invention involves the field of coating, especially for a hypertrophic co -polymer scattered agent and its preparation method. Background technique [0002] In a broad sense, decentrals are chemical reagents that can uniformly divide the material particles in the solvent and form a stable suspension solution. In the process of using it, it can significantly improve and improve the decentralized effect of solid or liquid. For example, when some solid dyes are grinded, adding dispersers can help the particles of particles and prevent the fragmented particles that have been crushed. , Maintain a stable diversified system; when the two phases of water and oil exist at the same time, the phenomenon of rapid layering of water and oil is very easy to occur without stirring, and the addition of decentralizers can effectively reduce the water and oil interface through its hydrophilic oil. The interface tension is formed to form a stable non -layered wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08F220/14C08F212/14C08F212/08C08F228/02C08F220/18C08F220/58C09D7/65
CPCC08F220/06C09D7/65C08F220/14C08F212/30C08F212/08C08F228/02C08F220/1804C08F220/585
Inventor 史俊苗
Owner SHANGHAI BAOLIJIA NEW MATERIAL CO LTD
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