宇航材料工艺2024，Vol.54Issue(4)：43-50,8.DOI:10.12044/j.issn.1007-2330.2024.04.006
SiBCN陶瓷前驱体改性邻苯二甲腈树脂的制备及性能研究
Study on Preparation and Properties of Phthalonitrile Resin Modified by SiBCN Ceramic Precursor
熊靖芸 1王子龙 2刘文彬 3周恒 4赵彤4
作者信息
- 1. 机械科学研究总院集团有限公司先进成形技术与装备国家重点实验室,北京 100083
- 2. 哈尔滨工程大学材料科学与化学工程学院,哈尔滨 150001||中国科学院化学研究所,北京 100190
- 3. 哈尔滨工程大学材料科学与化学工程学院,哈尔滨 150001
- 4. 中国科学院化学研究所,北京 100190
- 折叠
摘要
Abstract
With the rapid development of advanced equipements,it is of great significance to improve the heat resistance for polymer to expand its application in aerospace field.In this paper,4,4'-(1,3-phenoxy)phthalonitrile resin(APN)was modified with SiBCN ceramic precursor to produce high heat resistant material(CPN)and the heat resistance property and mechanism of the modified resin were studied.The results show that when SiBCN mass fraction is 20％,the Td10 of the CPN is 608.07 ℃(N2).According to the dynamic mechanical analysis(DMA)results,the glass transition temperature of CPN carbon fiber composites is higher than 500 ℃,which is 100 ℃ higher than that of APN-NH2carbon fiber composites.When SiBCN mass fraction is 40％,the CPN can maintain the integrity of appearance morphology after 30 min treatment at 900 ℃ under aerobic environment.The ceramic precursors can form Si-O and B-O bonds in the modified resin under high temperature conditions,which significantly improves the heat resistance.关键词
邻苯二甲腈树脂/陶瓷前驱体/耐热性能/固化/热氧稳定性Key words
Phthalonitrile resin/Ceramic precursor/Heat-resistance/Curing/Thermal oxygen stability分类
通用工业技术引用本文复制引用
熊靖芸,王子龙,刘文彬,周恒,赵彤..SiBCN陶瓷前驱体改性邻苯二甲腈树脂的制备及性能研究[J].宇航材料工艺,2024,54(4):43-50,8.
