Polycarboxylate-type water reducer and preparation method thereof
By combining modified talc powder with specific monomers and additives, a polycarboxylate superplasticizer was prepared, which solved the problem of poor compatibility of polycarboxylate superplasticizer in different cement systems, improved fluidity and dispersibility, and enhanced the stability and mechanical properties of concrete.
Patent Information
- Application Number
- CN202511207554.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2025-12-23
AI Technical Summary
Polycarboxylate superplasticizers have poor compatibility in different cement systems, resulting in large differences in dispersibility and holding capacity. Furthermore, concrete suffers severe slump loss during transportation, affecting its fluidity and mechanical strength.
A polycarboxylate superplasticizer was prepared by combining modified talc powder with specific monomers and additives via solution free radical polymerization. This enhanced the superplasticizer's affinity and dispersibility with cement. Modifying components such as serine and vanillin were added to improve its fluidity and stability.
It improves the fluidity, dispersibility and mechanical strength of polycarboxylate superplasticizer, enhances its compatibility with cement, reduces slump loss, and improves the overall performance of concrete.