Comb type carboxylate ternary copolymer and preparation technology thereof

A technology of terpolymer and carboxylate, which is applied in the field of copolymer dispersants and comb-type carboxylate terpolymer dispersants, which can solve the problems of difficulty in controlling the molecular weight of dispersants, high viscosity of the system, and production costs. Expensive and other issues, to achieve the effect of being suitable for industrial scale production, simple preparation process and good adaptability
CN104587891AInactive Publication Date: 2015-05-06SHANGHAI SHIDA POLYMER MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI SHIDA POLYMER MATERIAL
Publication Date
2015-05-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a comb type carboxylate ternary copolymer and a preparation technology thereof. The comb type carboxylate ternary copolymer is synthesized by taking an acrylic acid homologue, mono polyethylene glycol maleate and an acrylate as monomers, and performing free radical copolymerization in a water-phase system. The advantages comprise that the carboxylate ternary copolymer dispersant containing the acrylic acid unit has relatively good water solubility and has good adaptability on pH value of a dispersion system; the dispersant has ideal polymerization degree and carboxyl and polyethylene glycol grafting degree, stabilizes dispersed substances through steric hinerance effect and electrostatic repulsion, and is low in system viscosity; and the dispersant has good dispersing effect on inorganic powders and pesticides.
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Description

technical field

[0001] The invention relates to a copolymer dispersant, in particular to a comb-shaped carboxylate terpolymer dispersant and its application, which belongs to the invention technology in the field of new materials. Background technique

[0002] Polymer dispersants play a role in dispersing and stabilizing the dispersed substances, and are widely used in pigments, dyes, aqueous coal slurry, pesticides and other industries. The disadvantages of traditional small molecule dispersants are: the adsorption on the surface of solid particles is not firm, and it is easy to dissociate from the surface to cause re-aggregation or precipitation. The carboxylate copolymer dispersant can stabilize the system through steric hindrance and electrostatic repulsion, it is insensitive to the temperature, pH value and ionic strength of the system, and can significantly reduce the viscosity of the system. It can maximize the dispersing ability in the water-based system. It has bet...

Claims

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