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早强型聚羧酸减水剂的分子设计与性能研究
引用本文:张力冉,王栋民,刘治华,石晶,郝兵,昂源,张伟利.早强型聚羧酸减水剂的分子设计与性能研究[J].新型建筑材料,2012,39(3):73-77.
作者姓名:张力冉  王栋民  刘治华  石晶  郝兵  昂源  张伟利
作者单位:中国矿业大学(北京),北京,100083
基金项目:国家自然科学基金项目(50872151)
摘    要:基于聚羧酸减水剂的分子可设计性,引入一些特殊基团,优化梳形共聚物分子结构以开发早强型聚羧酸减水剂。在固定甲基丙烯酸酸钠(SMAS)与丙烯酸(AA)摩尔比的条件下,研究丙烯酰胺(AM)、2-丙烯酰胺-2-甲基丙磺酸(AMPS)以及马来酸酐与三乙醇胺酯化物(TEA-MA)在不同替代率下对早期强度的影响,并进行了相关性能测试,得出AMPS替代率为25%时具有较好的早强效果。

关 键 词:早强型聚羧酸减水剂  合成  早期强度  替代率

Molecular design and performance research of early-type polycarboxylate superplasticizer
ZHANG Liran , WANG Dongmin , LIU Zhihua , SHI Jing , HAO Bing , ANG Yuan , ZHANG Weili.Molecular design and performance research of early-type polycarboxylate superplasticizer[J].New Building Materials,2012,39(3):73-77.
Authors:ZHANG Liran  WANG Dongmin  LIU Zhihua  SHI Jing  HAO Bing  ANG Yuan  ZHANG Weili
Affiliation:[China University of Mining and Technology(Beijing),Beijing 100083,China]
Abstract:Based on the designability of polycarboxylate superplasticizer molecules,a new kind of polyearboxylate superplasticizer with early strength has been developed by introducing some special groups to optimize the molecular structure of a comb-copolymer.In the condition of the certain mol ratio of SMAS and AA,exploring the influence of the different replacement rate of AM,AMPS,TEA-MA to early age strength,and do that relevant performance tests to 25% replacement rate of AMPS has good early strength effect.
Keywords:early-type polycarboxylate superplasticizer  synthesis  early age strength  replacement rate
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