Study on the Gel Point of the Precursor Sol of Mullite Fiber

摘要：

Using water as disperse medium, aluminum nitrate (AN), aluminum isopropoxide (AIP) and tetraethoxysilane (TEOS) as raw materials, polyvinylpyrrolidone (PVP) as modifier, the precursor sol of mullite fiber was synthesized by sol-gel method. Through dynamic theological measurements, the gel points of the different systems were determined according to Chambon-Winter (CW) criterion. The influences of PVP and aging temperature on the gel point of the precursor sol were also investigated. They exert great influences on the gel point of the specific system. From these work, it may provide scientific basis for the preparation of the continuous mullite fiber.

关键词： mullite fiber precursor sol gel point rheological measurement

作者: LIU Meirong CHEN Xintuo GU Liqin GU Lixia

作者单位: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, P. R. China

会议类型: 国际会议

会议名称: 2007年先进纤维与聚合物国际会议

会议地点: 上海

会议语种:英文

页码: 458-460

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）