摘要
以甘肃平凉膨润土原矿粉为原料,研究了最优制备有机膨润土的工艺条件:温度为60℃,溶液pH值为2,插层剂(CTAB)用量为80mmol/100gMMT,反应时间为2h。对比了阳离子、两性和非离子表面活性剂有机插层剂对钠基土有机改性的影响。由XRD谱图及根据Bragg方程计算有机土的层间距可知,阳离子有机插层剂可显著增大膨润土的层间距,有机土的层间距可达2.016nm。由红外光谱(FTIR)分析可知,有机插层剂已经进入钠基土层间。
The best organic-preparation technological on Ca-bentonite from Pingliang, Gansu Province were temperature of 60℃; pH=2; dosage of organic insertion reagent with 80mmol/100g MMT; time of reaction in 211. Comparing with all kinds of surface active agent, in according to Bragg equation and XRD analysis, the layer space of positive ion surface active agent could obviously increase to 2.016nm The result of the FT IR could prove that organic insertion reagent had gone into the laver space.
出处
《非金属矿》
CAS
CSCD
北大核心
2008年第5期20-22,25,共4页
Non-Metallic Mines
基金
国家教育部"春晖计划"基金资助项目(Z2005-1-62016)
甘肃省自然科学基金资助项目(3ZS062-B25-027)
关键词
钠基土
有机插层剂
层间距
有机膨润土
Na-bentonite organic insertion reagent layer space organic-bentonite
