化工进展2011，Vol.30Issue(4)：813-819,841,8.
丁基磺酸纤维素醚减水剂的制备及其减水机理
Synthesis of sulfobutylated cellulose ether and study of its mechanism of water reduction
摘要
Abstract
Sulfobutylated cellulose ether ( SBC ) was synthesized with cotton pulp ( cellulose ) and 1,4-butanesuitone ( BS ) as raw materials. The structure of SBC was characterized by means of FT-IR,13 CP MAS, SEM, and XRD. The effects of degree of polymerization of cellulose, mol ratio of raw materials, reaction temperature and reaction time on water freduction unction were investigated. The mechanism of water reduction of the SBC was studied by investigating surface tension of the water-reducing agent aqueous solution and ζ-potential of water-SBC-cement system. The water-reducing agent hardly changed the water surface tension, its tropism on the interface of gasliquid was very small, and there was a lack of the effect of attracting gas for the cement. The result of attaching SBC to the surface of cement particles made the cement particles carry identical electric charge and repulse each other, and finally become well dispersed to cause water reduction.关键词
纤维素/丁基磺酸纤维素醚/减水剂/减水机理Key words
cellulose/ sulfobutylated cellulose ether/ water-reducing agent/ mechanism of water reduction分类
化学化工引用本文复制引用
哈丽丹·买买提,库尔班江·肉孜,王昕,陈松林..丁基磺酸纤维素醚减水剂的制备及其减水机理[J].化工进展,2011,30(4):813-819,841,8.基金项目
国家科技部科技人员服务企业项目(SQ2009GJG4004704). （SQ2009GJG4004704）
