聚醚类减水剂的合成及性能

Journal of Jilin University Science Edition

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Synthesis and Properties of PolyetherBased Superplasticizer

WANG Yan¹, REN Dianfu¹, TIAN Weixing², WANG Hong²,CHEN Zhong², HAN Zhaorang¹

1. College of Chemistry, Jilin University, Changchun 130012, China；2. Computation Center of Jilin Province, Changchun 130012, China

Received:2012-11-21 Online:2013-09-26 Published:2013-09-17
Contact: HAN Zhaorang E-mail:hanzr@jlu.edu.cn

Abstract

Abstract:

HPEG/AMPS/MA/AA polyetherbased superplasticizer was synthesized with free radical copolymerization method. Monomer ratio and the synthesis process were discussed. Its structure, molecular weight and distribution were tested by FTIR, 1H NMR and GPC; the effects of the superplasticizer dosage and
temperature on cement paste fluidity and waterreducing ratio were investigated; and the adaptability of the superplasticizer in different cement application was investigated. This kind of superplasticizer has high dispersion, the initial fluidity of cement paste and that of it left for 1 h could reach 310 and 300 mm respectively, and the waterreducing ratio could reach 35%. The superplasticizer shows excellent properties in compatibility with reference cement, Dinglu cement and Shanlü cement.

Key words: PEO, superplasticizer, synthesis, cement, paste fluidity, waterreducing ratio, dispersion

CLC Number:

O631.5

WANG Yan, REN Dianfu, TIAN Weixing, WANG Hong,CHEN Zhong, HAN Zhaorang. Synthesis and Properties of PolyetherBased Superplasticizer[J].Journal of Jilin University Science Edition, 2013, 51(05): 949-954.

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Synthesis and Properties of PolyetherBased Superplasticizer

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