Study on Synthesis and Properties of Low Sensitive Type Polycarboxylate Superplasticizer

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Jiang, Zhuojun^1

KZJ New Materials Group Co., Ltd., Xiamen, Fujian

361101, China^1

关键词: Chain transfer agents;    Methoxypolyethylene glycol;    Monomer conversions;    Polycarboxylate superplasticizer;    Polyoxyethylene ether;    Redox initiation systems;    Temperature sensitivity;    Water consumption;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/3/032001/pdf
DOI  :  10.1088/1757-899X/392/3/032001

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Low sensitive type polycarboxylate superplasticizer P-DM is composed of methoxy polyethylene glycol methacrylate, 3-methyl-3-butene-1-ol polyoxyethylene ether, acrylic acid, ester type small monomers A, sulfonic acid type small monomer B, amide type small monomer C, phosphoric acid type small monomer D and silane type small monomer E. The initiator system is hydrogen peroxide-sodium formaldehydesulfoxylate dihydrate redox initiation system. The chain transfer agent is mercaptoethanol. The test results show that the monomer conversion rate of the synthesized P-DM is high and the dosage sensitivity of P-DM is significantly better than that of the conventional ether type polycarboxylate superplasticizer and the conventional ester type polycarboxylate superplasticizer, and the water consumption sensitivity and temperature sensitivity of P-DM is slightly better than that of the conventional ether type polycarboxylate superplasticizer and the conventional ester type polycarboxylate superplasticizer.