Macromolecular cement grinding aid and preparation method thereof

By using modified alcohol amine compounds and acrylic copolymers in cement aids, the compatibility of cement aids and cement mineral particles is improved, and the problem of poor compatibility of existing aids is solved, and the strength performance and quality of cement products are improved are improved.

CN119707347APending Publication Date: 2025-03-28HANGZHOU LIPING IND & TRADE CO LTD
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Patent Information

Application Number
CN202411735556.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The compatibility of existing cement agitators with cement mineral particles is poor, which limits the strength and performance of cement products and makes it difficult to fully improve the quality of cement products.

Method used

Modified alcohol amine compounds and acrylic copolymers are used as main components, and the complexation and electrostatic adsorption of the modified alcohol amine compounds with cement mineral particles is improved by combining the hydrophilic and lipophilic segment adjustment of the acrylic copolymers to improve the compatibility of the abrasive agent and cement mineral particles.

Benefits of technology

While improving the cement grinding effect, it can effectively improve the strength and performance of cement and improve the quality of cement products.

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Abstract

The invention relates to the technical field of cement additives, and particularly discloses a macromolecular cement grinding aid and a preparation method thereof. The high-molecular cement grinding aid comprises the following components in parts by weight: 10-15 parts of a modified alcohol amine compound, 6-8 parts of an acrylic copolymer and 70-80 parts of a solvent, the modified alcohol amine compound is a copolymer of maleic acid alcohol amine ester and an auxiliary modified monomer, and the auxiliary modified monomer comprises vinyl silicone oil, sodium methylallyl sulfonate, acrylic acid and polyunsaturated fatty acid; the acrylic copolymer is formed by copolymerizing acrylic monomers including acrylic acid and methyl acrylate. The polymer cement grinding aid disclosed by the invention has good compatibility with cement mineral particles, can effectively improve the strength performance of cement while exerting a grinding aiding effect, and is beneficial to fully improving the quality of a cement product.
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