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›› 2017, Vol. 17 ›› Issue (1): 188-192.DOI: 10.12034/j.issn.1009-606X.216259CSTR: 32067.14.jproeng.216259

• 材料工程专栏 • 上一篇    下一篇

基于均匀设计和多元非线性回归法优化制备改性钠基蒙脱土

张浩,刘秀玉,宗志芳   

  1. 安徽工业大学建筑工程学院
  • 收稿日期:2016-07-26 修回日期:2016-08-08 出版日期:2017-02-20 发布日期:2017-02-22
  • 通讯作者: 张浩 fengxu19821018@163.com

Optimizing Preparation of Modified Na-Montmorillonite Based on Uniform Design and Multivariate Nonlinear Regression

ZHANG Hao ,LIU Xiu-yu ,ZONG Zhi-fang   

  1. School of Civil Engineering and Architecture, Anhui University of Technology
  • Received:2016-07-26 Revised:2016-08-08 Online:2017-02-20 Published:2017-02-22
  • Contact: ZHANG Hao fengxu19821018@163.com

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摘要： 以十六烷基三甲基溴化铵(CTAB)为改性剂改性钠基蒙脱土，基于均匀设计和多元非线性回归法考察了去离子水用量、CTAB用量、搅拌速度、搅拌温度和滴加时间对改性钠基蒙脱土片层间距的影响，表征了改性钠基蒙脱土的组成、结构和微观形貌. 结果表明，改性钠基蒙脱土的相容性提高，片层间距显著增加，各因素对改性钠基蒙脱土片层间距的影响程度为CTAB用量?搅拌温度?搅拌速度?去离子水用量?滴加时间. 优化的改性钠基蒙脱土方案为：去离子水用量358 g, CTAB用量0.47 g，搅拌速度2853 r/min，搅拌温度75.6℃，滴加时间128 min.

关键词: 钠基蒙脱土, 均匀设计, 改性, 优化

Abstract: Modified Na-montmorillonite was prepared with cetyl trimethyl ammonium bromide (CTAB) as modifier. The effect of deionized water amount, CTAB amount, stirring speed, mixing temperature and drop in time on modified Na-montmorillonite interlamellar spacing was studied by uniform design and multivariate nonlinear regression. Composition, structure and microstructure of modified Na-montmorillonite were characterized. The results showed that compatibility of modified Na-montmorillonite increased, interlamellar spacing increased significantly. Primary and secondary sequence of factors on modified Na-montmorillonite interlamellar spacing is CTAB amount>mixing temperature>stirring speed>deionized water amount>drop in time. The optimization pconditions of modified Na-montmorillonite is deionized water amount 358 g, CTAB amount 0.47 g, stirring speed 2853 r/min, mixing temperature 75.6℃ and drop in time 128 min.

Key words: Na-montmorillonite, uniform design, modified, optimizing

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