摘要
以钙基膨润土为原料,经提纯钠化改性,用十六烷基三甲基氯化铵对其进行有机改性。研究了改性剂用量、反应温度和反应时间对改性膨润土有机化程度的影响,得到了最佳实验条件:改性剂用量为35%(以钠基膨润土质量计)、反应温度为70℃、反应时间为2 h。利用红外光谱仪和X射线衍射仪对最优样品进行测试分析,结果表明:季铵盐插层进入了膨润土的晶层间,层间距明显增大,改性效果良好。
Na-bentonite from purified and modified Ca-bentonite was modified with organic hexadecyl trimethyl ammonium chloride （CTAC）.Influences of dosage of CTAC ,reaction temperature, and reaction time on organic degree were discussed and optimal experiment conditions were as follows： the dosage of CTAC was 35% （mass fraction） of Na-bentonite, reaction temperature was 70 ℃ ,and reaction time was 2 h.The best sample was characterized by IR and XRD.Results showed that the CTAC cations were successfully absorbed in the layers of bentonite clay and the layers＇ distance was obviously expanded, and the modification effect was well.
出处
《无机盐工业》
CAS
北大核心
2012年第2期27-29,共3页
Inorganic Chemicals Industry
基金
陕西省教育厅自然科学专项项目(2010JK450)
陕西科技大学科研启动基金项目(BJ08-13)
