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

A technology of hydroxyethyl acrylate and methacrylic acid, applied in carboxylate polyelectrolyte dispersant and its preparation process and application field, can solve the problems of weak adsorption, dissociation, particle re-aggregation or precipitation, etc. Low activation energy, good disintegration, and short cycle effects
CN102585082AActive Publication Date: 2012-07-18SHANGHAI NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI NORMAL UNIVERSITY
Publication Date
2012-07-18

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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 present invention relates to a carboxylate type polyelectrolyte dispersant and its preparation process and application. Specifically, it relates to a carboxylate type 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. Traditional small-molecule dispersants are not firmly adsorbed on the surface of solid particles, and are easy to dissociate from the surface to cause the particles to re-aggregate or precipitate. The carboxylate copolymer dispersant stabilizes the system through steric hindrance and electrostatic repulsion. Compared with small molecule dispersants, it has better dispersion effect; compared with lignin sulfonate and naphthalene sulfonate formaldehyde con...

Claims

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