| 引用本文: | 李爱平,宋永才.聚钛碳硅烷的结构与性能研究.[J].国防科技大学学报,1991,13(1):25-30.[点击复制] |
| Li Aiping,Song Yongcai.Studies on the Structure and Properties of Polytitanocarbosilanes[J].Journal of National University of Defense Technology,1991,13(1):25-30[点击复制] |
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| 聚钛碳硅烷的结构与性能研究 |
| 李爱平, 宋永才 |
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(材料科学与应用化学系)
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| 摘要: |
| 通过聚碳硅烷与四丁氧基钛的反应，可以制得含钛碳化硅纤维的先驱体聚钛碳硅烷。反应物配比Ti(OBu)4/PC将直接影响产物的结构与性能。随这一比例的增加，聚钛碳硅烷的可纺性与熔点将有规律地变化。这可归因于以-Ti–O-为桥的交联结构和以-Ti(OBu)3为侧基的悬挂结构的形成。本文研究了聚钛碳硅烷的结构与性能的关系，并以具有良好成丝性的PTC-0.02与PTC-0.04为先驱体，制得了含钛碳化硅纤维。 |
| 关键词: 复合材料，先驱体，碳化硅纤维/聚钛碳硅烷 |
| DOI： |
| 投稿日期：1989-05-05 |
| 基金项目: |
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| Studies on the Structure and Properties of Polytitanocarbosilanes |
| Li Aiping, Song Yongcai |
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(Department of Materials Science and Applied Chemistry)
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| Abstract: |
| Polytitanocarbosilane(PTC)，the precursors of SiC fibers containing，Ti，was synthesized by the reaction between polycarbosilane (PC) and tetrabutoxititanium (Ti(OBu)4). The structure and properties of PTC depend directly on the molar ratio of Ti(OBu)4/PC. The spinnability and the melting point of PTC change regularly with this ratio. It is attributed to the formation of the crosslinked structure by-Ti-O-as bridge group and the pendant structure by-Ti(OBu)3 as side group. The relation between structure and properties of PTC has been studied in this paper. SiC fiber containing Ti has been obtained from PTC-0.02 and PTC-0.04 with good spinnability as their precursors. |
| Keywords: composite,precursor,SiC fiber/polytitanocarbosilanes |
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