| 聚羧酸超塑化剂的性能研究 |
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| 引用本文： | 郭雅妮,刘长生,丁庆军.聚羧酸超塑化剂的性能研究[J].武汉化工学院学报,2007,29(3):46-48,51. |
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| 作者姓名： | 郭雅妮 刘长生 丁庆军 |
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| 作者单位： | [1]武汉工程大学材料科学与工程学院,湖北武汉430074 [2]武汉理工大学材料学院,湖北武汉430070 |
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| 基金项目： | 国家“863”计划项目（2002AA335080） |
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| 摘 要： | 研究了含有亲水性羧基、酸酐基团、磺酸基、聚环氧乙烷侧链的三种羧酸类共聚物对水泥浆体流变性能和水泥粒子表面Zeta电位的影响，并与萘系高效减水剂进行了对比．在改善水泥浆体的流变性能方面，三种聚羧酸超塑化剂的最佳掺量和饱和掺量均为0．3％～0．45％；对水泥粒子表面Zeta电位的影响方面聚羧酸超塑化剂远小于萘系高效减水剂，证实了两类减水剂的分散作用机理的区别．编者按]
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| 关 键 词： | 聚羧酸超塑化剂 流变性 Zeta电位 |
| 文章编号： | 1004-4736（2007）03-0046-03 |
| 收稿时间： | 2007-01-30 |
| 修稿时间： | 2007年1月30日 |
Characteristic studies of polycarboxylate-type superpl asticizers |
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| GUO Ya-ni,LIU Chang-sheng,DING Qing-jun.Characteristic studies of polycarboxylate-type superpl asticizers[J].Journal of Wuhan Institute of Chemical Technology,2007,29(3):46-48,51. |
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| Authors: | GUO Ya-ni LIU Chang-sheng DING Qing-jun |
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| Abstract: | Three polycarboxylic superplasticizers with hydrophilic radical such as carboxyl group, sulfonate, anhydride and polyethylene oxide branched chain were synthesized by free radical copolymerization and esterification graft reaction. The effects of superplasticiers on rheological behaviour of cement paste and Zeta -potential of cement particles were discussed and contrasted with naphthalene sulfonate superplasticizer. The results show that the optimum dosages and the saturation dosages of the polycarboxylic superplasticizers to improve the rheological behavior are between 0.30%-0. 45%. it is proved that there are differences in the dispersal mechanism by the facts that the effects of polycarboxylic superplasticizers on Zeta-potential of cement particles are much less than that of naphthalene sulfonate superplasticizer. |
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| Keywords: | polyearboxylic superplastieizers rheological behavior Zeta-potential |
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