摘要
以聚硅烷 (PS)、聚氯乙烯 (PVC)和钛酸四丁酯 [Ti(OBu) 4 ]合成含碳量不同的聚钛碳硅烷 (PTC)先驱体 ,运用IR、GPC、VPO、TG等分析手段系统地研究了富碳PTC先驱体的合成及其组成结构 ,讨论了加入PVC含量不同对PTC合成及其结构、性能的影响。经熔融纺丝、不熔化处理、高温烧成制备出具有较好工艺性能和电阻率为 10 0 Ω·cm～ 10 3Ω·cm的富碳含钛碳化硅纤维 (Si -Ti -C -O纤维 )。
Polytitanocarbosilanes(PTC) with different C content are synthesized by polysilane(LPS),polyvinyl chloride(PVC) and Ti(OBu) 4. The syntheses,composition and structure of the PTC with rich carbon are studied and the influence of PVC content on the syntheses,composition,structure and properties of PTC is discussed by IR,GPC,VPO,TG. From these precursors,Si Ti C O fibers with specific resistance of 1 Ω·cm～10 3 Ω·cm are manufactured by melt spinning,curing in air and sintering at high temperature.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2001年第2期24-27,共4页
Aerospace Materials & Technology
基金
863计划项目! :715 0 170 16
