Methacrylic acid-styrene-hydroxyethyl acrylate copolymer dispersant and preparation method and application thereof

A technology of hydroxyethyl acrylate and methacrylic acid, which is applied to carboxylate polyelectrolyte dispersants and their preparation process and application fields, can solve problems such as weak adsorption, re-agglomeration or precipitation, and dissociation of particles, and achieve total Low activation energy, short cycle, good disintegration effect
CN102585082BActive Publication Date: 2014-02-26SHANGHAI NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI NORMAL UNIVERSITY
Publication Date
2014-02-26

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Abstract

The invention relates to a methacrylic acid-styrene-hydroxyethyl acrylate copolymer dispersant and a preparation method and application thereof. The methacrylic acid-styrene-hydroxyethyl acrylate copolymer dispersant is synthesized with styrene, methacrylic acid and hydroxyethyl acrylate as monomers, and cerous chloride-2-isopropyl-thioxanthone complex, cerous chloride-anthraquinone complex or cerous chloride-diphenyl ketone complex as a photoinitiator through photo initiated radical copolymerization. The dispersant provided by the invention can have a good dispersion effect on inorganic powder and pesticide preparations, and can be compounded with a wetter to take good dispersion effect on pesticide water-borne preparations.
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Description

technical field

[0001] The invention relates to a carboxylate polyelectrolyte dispersant and its preparation process and application, in particular to a carboxylate terpolymer dispersant (methacrylic acid-benzene Ethylene-hydroxyethyl acrylate copolymer dispersant) and its preparation process and application. Background technique

[0002] Dispersants have important applications in pigments, dyes, pesticides and other industries, and play a role in dispersing and stabilizing the dispersed substances. The adsorption of traditional small molecule dispersants on the surface of solid particles is not strong, and they are easily dissociated from the surface, resulting in re-agglomeration or precipitation of particles. Carboxylate copolymer dispersants stabilize the system through steric hindrance and electrostatic repulsion. Compared with small molecule dispersants, it has a better dispersion effect; compared with lignosulfonate and naphthalenesulfonate formaldehyde condensate d...

Claims

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