The synthesis of carboxyl calcium lignosulfonate and its applications as water reducer

被引：11
|
作者：
Pei, Meishan [1 ]
Li, Cheng [1 ]
Wang, Zhenfei [1 ]
Zhang, Jin [1 ]
Qin, Xiaojuan [1 ]
Liu, Lijuan [1 ]
机构：
[1] Univ Jinan, Coll Chem & Chem Engn, Jinan 250022, Shandong, Peoples R China
来源：
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2008年 / 29卷 / 04期
基金：
中国国家自然科学基金;
关键词：
carboxyl group; steric hindrance effect; dispersing ability; surface activity; viscosity;
D O I：
10.1080/01932690701716143
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
p-Aminobenzoic acid and calcium lignosulfonate (CL) are used as main raw materials in the synthesis of carboxyl calcium lignosulfonate (CCL). The surface activity of CCL is measured, and the properties of cement particles with CCL are investigated such as adsorption quantity and Zeta potential. Test results show that CCL has higher surface tension, lower adsorption quantity on cement than CL, the Zeta potential of cement particles with CCL is similar to that of cement particles with CL, the dispersing ability of CCL is stronger than that of CL, the viscosity loss of cement paste with CCL is less than that with CL, and the compressive and flexural strength of mortars with CCL are higher than that with CL.
引用
收藏
页码：530 / 534
页数：5
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