摘要：研究制备蒙脱石-十八烷基三甲基铵复合粉体时,温度条件、插层物用量、洗涤水温、分散振荡时间、振荡强度、使用温度以及交换液pH等条件对复合粉体稳定性的影响规律。结果表明:蒙脱石-十八烷基三甲基铵复合粉体制备时的温度、十八烷基三甲基铵插层剂用量、交换液pH及复合粉体的洗涤水温对复合粉体的稳定性影响显著;在较高的交换温度、较小的插层剂用量、较大的交换液pH和较低的洗涤水温条件下制备的蒙脱石-十八烷基三甲基铵复合粉体的稳定性较好;粉体使用时的分散振荡时间、振荡强度以及使用温度对复合粉体的稳定性影响不大。

关键词：蒙脱石；十八烷基三甲基氯化铵；复合粉体；稳定性

Abstract : The effect of adsorption temperature ， octadearyldimethyl - ammonium dosage， washing temperature， oscillation time， oscillation intensity， using temperature and pH value of exchange fluid on the stability of the composite powders was studied. The results show that the effect of adsorption temperature， octadearyldimethylammonium dosage， pH value of exchange fluid and washing temperature on the stability of the composite powders is significant. The stability of the composite powders is better with higher adsorption temperature， smaller octadearyldimethyl -ammonium dosage， larger pH and lower washing temperature. The dispersion time， oscillation intensity and using temperature have less influence. 

Keywords: montmorillonite； octadecyltrimethylammonium chloride； composite powder； stability