The Dispersion of SiC Nanopowders in Ethanol

摘要：

　　The dispersion of SiC nanopowders in ethanol solution was studied by sedimentation test,particle size measurement and TEM analysis.The dispersion behavior of SiC nanopowders in ethanol solution was strongly dependent on the pH values,types and amounts of dispersant.PEI was found to be effective for the dispersion of SiC nanopowders in ethanol solution.With the addition of PEI,the isoelectric points of SiC nanopowders in ethanol solution were at pH 9.5,and shift to pH 12.3.The stability of SiC suspension increased with the dispersant content increasing until reached 2.5 wt% PEI.The suitable pH value for the dispersion of SiC nanopowders should lower than 10.

关键词： Dispersion suspension SiC pH value

作者: Yang Hou Ping Hu Wenbo Han

作者单位: National Key laboratory of Science and Technology on advanced composites in Special Environment,Harbin Institute of Technology,Harbin 150001,P.R.China

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 779-784

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）