Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (1): 83-87. Previous Articles     Next Articles


冯猛, 赵春贵, 巩方玲, 阳明书   

  1. 中国科学院化学研究所分子科学中心, 工程塑料国家重点实验室, 北京, 100080
  • 投稿日期:2003-05-26 修回日期:2003-08-22 发布日期:2014-01-26
  • 通讯作者: 阳明书

Study on the Modification of Sodium Montmorillonite with Amino Silanes

FENG Meng, ZHAO Chun-Gui, GONG Fang-Ling, YANG Ming-Shu   

  1. State Key Laboratory of Engineering Plastics, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080
  • Received:2003-05-26 Revised:2003-08-22 Published:2014-01-26

Modification of sodium montmorillonite (MMT) with amino silanes was investigated by infrared spectrum (FT-IR), wide-angle X-ray diffraction (WAXD) and thermogravimetric analysis (TGA) methods. The weakening effects of aluminum hydroxyl group at 3620 cm-1 proved that the surface modification had taken place. In the presence of acetic acid, the basal spacing of MMT modified with the amino silanes was increased to approximate 1.76 nm, which indicated the intercalation of amino silanes. TGA results confirmed the intercalation. Thus, intercalated/surface modified MMT could be obtained by using montmorillonite and amino silanes under the treatment of acetic acid. The dispersion results of MMT in different solvents showed that the intercalated/surface modified MMT had improved dispersion ability in ethanol.

Key words: montmorillonite, surface modification, intercalation, amino silane