期刊
CERAMICS INTERNATIONAL
卷 41, 期 9, 页码 11550-11554出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.05.048
关键词
Polymeric precursor; Co-polymerization; Melt spinning; Pyrolysis; SiBNC ceramic fiber
资金
- Fundamental Research Funds for the Central Universities [14D110626]
- Natural Science Foundation of Shanghai [15ZR1400400]
- plan of action for the innovation of Science And Technology in Basic Research of Shanghai [14JC1400100]
- Scientific Research Plan Project of Shanghai [12DZ1100502]
A novel precursor for preparing SiBNC ceramic fibers was successfully prepared via co-polymerization of ttichlorosilane (SiHCl3), boron trichloride (BCl3) and methyl amine (MeNH2). The polymeric precursor exhibited good melt spinnability due to its relatively linear-chain chemical structure, which could be easily melt spun into green fibers with a diameter of 28 mu m. The green fibers were subsequently pyrolyzed to SiBNC ceramic fibers with ca. 24 mu m in diameter and 750 MPa in tensile strength. The polymer-to-ceramic conversion was investigated by the means of thermogravimetric analysis (TGA) and nuclear magnetic resonance spectroscopy (NMR). (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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