一种具有抗泥功能的混凝土吸附牺牲剂、其制备方法及应用
By designing a concrete adsorbent sacrificial agent that combines electrostatic adsorption and intercalation adsorption, the problem of decreased fluidity caused by the adsorption of polycarboxylate superplasticizer by clay was solved, achieving efficient fluidity improvement and cost reduction at low dosage.
CN117186379BActive Publication Date: 2026-07-17JIANGSU SOBUTE NEW MATERIALS CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU SOBUTE NEW MATERIALS CO LTD
- Filing Date
- 2022-05-31
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The adsorption of polycarboxylate superplasticizer by clay in existing concrete leads to a decrease in fluidity. Traditional adsorption sacrificial agents have high dosage, high cost, and unstable anti-mud effect.
Method used
A concrete adsorbent sacrificial agent with positively charged quaternary ammonium salt groups and flexible polyether long chains was developed. Through a combination of electrostatic adsorption and intercalation adsorption, the adsorption amount of polycarboxylate superplasticizer was reduced and the fluidity was improved.
Benefits of technology
It significantly improves the fluidity of fresh concrete at low dosages, reduces the amount of polycarboxylate superplasticizer used, lowers costs, and enhances economic benefits.
✦ Generated by Eureka AI based on patent content.
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Abstract
本发明公开了一种具有抗泥功能的混凝土吸附牺牲剂、其制备方法及应用。本发明所述混凝土吸附牺牲剂分子由2~4个吸附单元共价连接得到，每个吸附单元由带正电荷的季铵盐基团及带有10~100个环氧乙烷重复单元的柔性聚醚长链通过化学键共价连接起来。本发明所述具有抗泥功能的混凝土吸附牺牲剂，相比于传统的吸附牺牲剂，在粘土上具有更强的吸附能力，能够更有效地降低聚羧酸减水剂在粘土上的吸附，从而更显著地提高新拌混凝土的流动性。
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