The study on the synthesis and action mechanism of starch succinate half ester as water-reducing agent with super retarding performance

The study on the synthesis and action mechanism of starch succinate half ester as water-reducing agent with super retarding performance
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超缓凝减水剂淀粉琥珀酸半酯的合成及作用机理研究

DOI:
10.1016/j.carbpol.2007.05.020
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发表时间:
2008-01
影响因子:
11.2
通讯作者:
Zhang, D. -F.
Zhang, D. -F.
中科院分区:
化学1区
文献类型:
--
作者:
Ju, B. -Z.;Yang, J. -Z.;Zhang, S. -F.;Zhang, D. -F.

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本文以一种简单的方法合成了琥珀酸淀粉半酯(SSHE),并将其用作减水剂。研究了SSHE用量和存放时间对水泥净浆流动性和水泥颗粒ζ-电位的影响,并与主要依靠空间位阻效应进行分散的羧甲基淀粉进行了比较。结果表明,SSHE是一种具有良好缓凝性能的新型减水剂。SSHE的主要分散能力来自空间位阻排斥力,而不是静电排斥力,而超强的缓凝性能是由于以酸性形式引入了反应性琥珀酸半酯基团。
In this paper, starch succinate half ester (SSHE) was synthesized by a simple method and used as water-reducing agent. The effects of both dosage of SSHE and storing time on the fluidity of cement paste and ζ-potential of cement particles were studied in comparison with that of carboxymethyl starch (CMS) whose dispersion ability mainly depends on steric hindrance effect. The results indicate that SSHE is a novel kind of water-reducing agent with super retarding performance. The main dispersion capacity of SSHE comes from steric hindrance repulsion rather than electrostatic repulsive force and the super retarding performance results from the introduction of reactive succinate half ester groups in acid form.
DOI: 10.1016/j.cemconres.2003.10.017
发表时间: 2004-04-01
影响因子: 11.4
作者:
Altun, IA;Sert, Y
通讯作者: Sert, Y
DOI: 10.1016/j.cemconres.2004.09.022
发表时间: 2005-05
影响因子: 11.4
作者:
M. C. Vieira;D. Klemm;L. Einfeldt-;G. Albrecht
通讯作者: M. C. Vieira;D. Klemm;L. Einfeldt-;G. Albrecht
DOI: --
发表时间: 2006
期刊: Fine chemicals
影响因子: --
作者:
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通讯作者: Cheng Fa
DOI: 10.1016/j.cemconres.2004.04.016
发表时间: 2005-03-01
影响因子: 11.4
作者:
Peng, JH;Qu, JD;Wan, TZ
通讯作者: Wan, TZ
DOI: 10.1021/jf0102160
发表时间: 2001-06-01
影响因子: 6.1
作者:
Chong, CK;Xing, J;Corke, H
通讯作者: Corke, H