YAN Gancai1 ， MO Dongli1 ， ZHU Yong1 ， CHEN Yewen1 ， LIN Jinchao1 ， YUAN Aiqun2
（1. Guangxi Huana New Materials Sci. & Tech. Co.， Ltd.， Nanning 530103， China； 2. School of Chemistry and Chemical Engineering， Guangxi University for Nationalities， Nanning 530006， China）
Abstract：Experiments were conducted to investigate the rheopectical properties of nano-scale calcium carbonate filled dioctyl phthalate （DOP） suspensions. The calcium carbonate was coated with various amounts sodium stearate. The results show that，if the calcium carbonate is coated with more sodium stearate，less hydroxyl is on the calcium carbonate surface，the surface is more lipophilic， and the dispersion of the calcium carbonate is improved.When the calcium carbonate is coated with 0 or more than 4.5% sodium stearate，the recovery of suspension network is faster than the destruction，and the suspension showed rheopectical.
Keywords: nano-scale calcium carbonate; dioctylphthalate suspensions; rheopectical
文章编号：1008-5548（2016）04-0074-04
DOI：10.13732/j.issn.1008-5548.2016.04.017
收稿日期：2015-06-29， 修回日期：2016-04-10，在线出版时间：2016-08-02。
第一作者简介：颜干才（1988—），男，助理工程师，研究方向为纳米碳酸钙改性与应用。E-mail：yangancai@hnu.edu.cn。
通信作者简介：朱勇（1976—），男，博士，高级工程师，研究方向为高分子复合材料。E-mail：505353463@qq.com。
