The Preparation and Characterization of Vermiculite Hydrosol  

作　　者：毛庆辉 阚泓 徐红 毛志平 曹欢天 

机构地区：[1]School of Textile and Clothing,Nantong University [2]Key Laboratory of Science & Technology of Eco-Textile,Ministry of Education,Donghua University [3]Department of Fashion and Apparel Studies,University of Delaware

出　　处：《Journal of Donghua University(English Edition)》2010年第6期753-759,共7页东华大学学报（英文版）

基　　金：National High Technology Research and Development Program(863 Program),China(No.2007AA03Z336);Program for New Century Excellent Talents in University,China(No.NCET-07-0174)

摘　　要：The dispersibility of vermiculite is the key factor that affects the application of vermiculite.In this paper,the milled natural vermiculite was pillared by organic quaternary ammonium salts.Then the pillared vermiculite was ground and homogenized under the existence of dispersive agent to form a stable vermiculite hydrosol system.Small angle X-ray diffraction(SA-XRD),fourier transform infrared spectroscopy(FTIR),and thermogravimetric analyses(TGA)were used to characterize the structure and thermal property of the vermiculite.The results indicate that the exfoliated vermiculite is successfully obtained.The analyses of laser particle size analyzer,transmission electron microscope(TEM),and Tyndall phenomenon analyzer demonstrate that the vermiculite hydrosol prepared is a stable hydrosol system.The dispersibility of vermiculite is the key factor that affects the application of vermiculite.In this paper,the milled natural vermiculite was pillared by organic quaternary ammonium salts.Then the pillared vermiculite was ground and homogenized under the existence of dispersive agent to form a stable vermiculite hydrosol system.Small angle X-ray diffraction（SA-XRD）,fourier transform infrared spectroscopy（FTIR）,and thermogravimetric analyses（TGA）were used to characterize the structure and thermal property of the vermiculite.The results indicate that the exfoliated vermiculite is successfully obtained.The analyses of laser particle size analyzer,transmission electron microscope（TEM）,and Tyndall phenomenon analyzer demonstrate that the vermiculite hydrosol prepared is a stable hydrosol system.

关 键 词：organic quaternary ammonium salt pillaring action VERMICULITE vermiculite hydrosol 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业] X703.3[环境科学与工程—环境工程]