| 一种两性聚羧酸系减水剂对水泥分散性能的影响 |
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| 引用本文： | 曹强,田小娟.一种两性聚羧酸系减水剂对水泥分散性能的影响[J].渭南师范学院学报,2014(7):24-27. |
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| 作者姓名： | 曹强 田小娟 |
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| 作者单位： | [1]渭南师范学院化学与生命科学学院,陕西渭南714099 [2]陕西省石油化工研究设计院,西安710054 |
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| 摘 要： | 以甲基丙烯酸（AA）、烯丙基聚乙二醇（APEG）和二烯丙基二甲基氯化铵（DMDAAC）为原料通过溶液共聚制备出了一种两性聚羧酸系减水剂（APCs）．研究了单体对APCs性能的影响，测定了Zeta电位和吸附特性．结果表明引人阳离子单体可以增加饱和吸附量和分散性能．Zeta电位测定表明吸附着聚合物的水泥粒子之间的空间位阻是主要的分散机理．
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| 关 键 词： | 两性 减水剂 分散性能 吸附 |
Effect of an Amphoteric Polycarboxylate Superplasticizer on Dispersion Properties of Cement |
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| CAO Qiang,TIAN Xiao-juan.Effect of an Amphoteric Polycarboxylate Superplasticizer on Dispersion Properties of Cement[J].Journal of Weinan Teachers College,2014(7):24-27. |
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| Authors: | CAO Qiang TIAN Xiao-juan |
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| Institution: | 1. School of Chemistry and Life Science, Weinan Normal University,Weinan 714099, China; 2. Shaanxi Research Design Institute of Petroleum and Chemical Industry, Xi＇an 710054, China) |
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| Abstract: | A novel amphoteric polycarboxylate superplasticizer was prepared by solution copolymerization from Acrytic acid （AA）, allyl polyethylene glycol （APEG）, Diallyldimethyl ammonium chloride （DMDAAC）. Effects of monomers on performance of APCs were investigated. Zeta potential and adsorption characteristics were also tested. Results indicated that introducing of cat- ionic monomer can increase the saturation adsorption amount and dispersion properties. Zeta potential measurements indicated steric repulsion between the cement particles carrying adsorbed polymer molecules is the main mechanism for dispersion. |
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| Keywords: | amphoteric superplasticizer dispersion properties adsorption |
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