静电纺丝法制备SiC纤维及其表征

人工晶体学报, 2010, 39(6): 1559-1563.

静电纺丝法制备SiC纤维及其表征

孙东飞 ^1, , 于升学 ^2, , 谢丹阳 ^3, , 阎兴斌 ^4, , 谢征芳 ^5, , 薛群基 ^6,

1.燕山大学环境与化学工程学院,秦皇岛,066004;中国科学院兰州化学物理研究所固体润滑国家重点实验室,兰州,730000

2.燕山大学环境与化学工程学院,秦皇岛,066004

3.燕山大学环境与化学工程学院,秦皇岛,066004

4.中国科学院兰州化学物理研究所固体润滑国家重点实验室,兰州,730000

5.国防科技大学新型陶瓷纤维及其复合材料国防科技重点实验室,长沙,410073

6.中国科学院兰州化学物理研究所固体润滑国家重点实验室,兰州,730000

基金项目: 中国科学院"百人计划"资金项目

关键词：碳化硅纤维 , 聚碳硅烷 , 静电纺丝

Preparation and Characterization of SiC Fibers by Electrospinning

以聚乙烯吡咯烷酮(PVP)与聚碳硅烷(PCS)为原料,利用静电纺丝法制得PCS/PVP复合纤维,通过空气交联,氩气(Ar)气氛下高温(1000～1400 ℃)处理以及空气中500 ℃除碳,最终得到碳化硅(SiC)纤维.利用场发射扫描电镜(FE-SEM)、X射线衍射仪(XRD)、傅里叶变换红外光谱(FT-IR)及X射线光电子能谱(XPS)等对所得纤维进行形貌、微观结构和成分分析,并研究了不同处理温度对SiC纤维结构和形貌的影响.结果表明,利用静电纺丝法可以得到质量较好的SiC纤维,热处理温度为1000 ℃和1200 ℃时得到无定形的SiC纤维,热处理温度为1400 ℃时可以得到结晶较好的β-SiC纤维.

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