【摘要】：以十六烷基三甲基溴化銨(CTAB)為改性劑改性鈉基蒙脫土,基于均勻設(shè)計(jì)和多元非線性回歸法考察了去離子水用量、CTAB用量、攪拌速度、攪拌溫度和滴加時(shí)間對(duì)改性鈉基蒙脫土片層間距的影響,表征了改性鈉基蒙脫土的組成、結(jié)構(gòu)和微觀形貌.結(jié)果表明,改性鈉基蒙脫土的相容性提高,片層間距顯著增加,各因素對(duì)改性鈉基蒙脫土片層間距的影響程度為CTAB用量?攪拌溫度?攪拌速度?去離子水用量?滴加時(shí)間.優(yōu)化的改性鈉基蒙脫土方案為:去離子水用量358 g,CTAB用量0.47 g,攪拌速度2853 r/min,攪拌溫度75.6℃,滴加時(shí)間128 min.
[Abstract]:Sodium montmorillonite was modified with cetyltrimethylammonium bromide (CTAB) as modifier. The dosage and stirring rate of deionized water were investigated based on uniform design and multivariate nonlinear regression method. The effects of stirring temperature and dropping time on the interlamellar spacing of modified sodium montmorillonite were investigated. The composition, structure and microstructure of modified sodium montmorillonite were characterized. The results showed that the compatibility of modified sodium montmorillonite was improved and the interlamellar spacing was significantly increased. The effect of various factors on the interlamellar spacing of modified sodium montmorillonite was the amount of CTAB. Stirring temperature? Stirring speed? Deionized water? Add time. The optimized modified sodium montmorillonite was as follows: the dosage of deionized water was 358g CTAB 0.47g, the stirring speed was 2853 r / min, the stirring temperature was 75.6 鈩，

本文編號(hào)：2221654