Effect of the Preparation Conditions on Potassium Acetate-Intercalated Metakaolinite Composites

摘要：

A useful and desirable method of preparing intercalated composites as an intermediate is to directly intercalate potassium acetate into metakaolinite by grinding method. The effects of grinding times, potassium acetate content and heat treatment on the direct intercalation of potassium acetate into metakaolinite were investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM). XRD shows that the intensity of the characteristic peak of metakaolinite decreases with heat treatment and increase of grinding times and potassium acetate content. TEM shows that the clay platelets of metakaolinite are delaminated after intercalation of potassium acetate. These results indicate that heating and increase of grinding times and potassium acetate content can be most beneficial for the intercalation of potassium acetate into metakaolinite, and result in the exfoliation of metakaolinite layers.

关键词： metakaolinite potassium acetate intercalation composites

作者: Tao Xu Wei Han Zhen Li Zaiqin Wang

作者单位: School of Materials Science and Chemical Engineering, China University of Geosciences, 388 Lumo Road Materials and Structural Engineering Department, Changjiang River Scientific Research Institute, 23

会议类型: 国际会议

会议名称: 6th Asian Symposium on Polymers in Concrete(第六届亚洲聚合物混凝土国际会议)

会议地点: 上海

会议语种:英文

页码: 162-167

在线出版日期: 2009-10-29（万方平台首次上网日期，不代表论文的发表时间）