Study on preparation method and properties of solid polycarboxylate water reducing agent
LIU Meili
PEI Jikai
WANG Ziwei
REN Jianguo
Abstract：In this paper,solid polycarboxylate water reducing agent were prepared by bulk polymerization using maleic acid (maleic acid)and allyl polyethylene glycol(APEG) as raw materials and azobisisobutyronitrile(AIBN) as initiator. The effects of molar ratio of acid and ether,polymerization temperature,reaction time,initiator dosage and the mode of adding initiator on the performance of the products was researched. The results show that the polycarboxylate superplasticizer has the advantages of strong disperse ability and excellent slump retention. IR results show that the molecular structure of polycarboxylate water reducing agent is consistent with the expectation.
Keywords：polycarboxylate water reducing agentsolidbulk polymerizationperformance
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 45-48 )