摘要
用ＳｉＣ纤维的先驱体聚碳硅烷与碳纤维先驱体沥青共混得到叮制备ＳｉＣ－Ｃ纤维的先驱体ＰＣ－Ｐ共混物。它的流变纺丝性与组份聚碳硅烷和沥青的性质相关，只有两组份的可纺丝温度区间叠合，才可以得到可纺性好的ＰＣ－Ｐ共混先驱体。此研究结果对ＳｉＣ－Ｃ纤维选择聚碳硅烷和沥青组份及共混工艺有指导意义。
The precursor PC-P blenders that can be used to prepare SiC-C fibers wereobtained by blending the precursor polycarbosilane of SiC fibers and the precursor pitch ofcarbon fibers.The rheological and spinning behaviour of blenders is related to these twocomponents. So long as the spinability temperature regions of polycarbosilane and pitchcoincide with each other, there can be a good spinable PC-P blender. This research will be ofvalue to the selection of components and to the blending process in manufacturing SiC-Cfibers.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
1995年第3期46-52,共7页
Acta Materiae Compositae Sinica
基金
国家自然科学基金资助项目
关键词
流变
可纺丝性
碳化硅
碳纤维
先驱体
silicon carbide fiber precursor,rheology,spinability
