文献类型：期刊文献

中文题名：聚硼硅氮烷杂化芳炔基树脂制备及抗热氧化性能

英文题名：Preparation and thermal-oxidation resistance of polyborosilazane hybrid polyarylacetylene resin

作者：王沪东[1];郭康康[1];周晖[1];朱亚平[1];王帆[1];齐会民[1]

机构：[1]华东理工大学材料科学与工程学院特种功能高分子材料及其相关技术教育部重点实验室,上海200237

年份：2016

卷号：33

期号：5

起止页码：962

中文期刊名：复合材料学报

外文期刊名：Acta Materiae Compositae Sinica

收录：CSTPCD;;EI(收录号：20162402489913);Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金(90816021)

语种：中文

中文关键词：聚硼硅氮烷;芳炔树脂;有机-无机杂化;热稳定性能;抗热氧化性能

外文关键词：polyborosilazane; polyarylacetylene resin; organic-inorganic hybrid; thermostability; thermal-oxidation resistance;

摘要：合成带乙炔基聚硼硅氮烷（PBSZ），并与含硅芳炔树脂（PSA）进行杂化制备聚硼硅氮烷杂化芳炔基（PBSZ/PSA）树脂，以改善芳炔基树脂的抗热氧化性能。采用 FTIR、NMR 和凝胶渗透色谱（GPC）对合成的PBSZ进行结构表征；采用旋转流变和 DSC对 PBSZ/PSA 树脂的工艺性能进行研究；采用 TGA、SEM和 EDS对PBSZ/PSA树脂固化物的热稳定性和抗热氧化性能进行了研究。结果表明：PBSZ/PSA 树脂具有良好的加工性能，树脂固化放热量较低，可在210℃下固化；树脂固化物在空气气氛1000℃下的残留率为38.0%，且其氧化后表面形成了60～80μm厚致密的保护层，可起到良好的隔绝氧气作用；改性树脂固化物1200℃烧结物展现出优异的抗热氧化性能，烧结物1200℃氧化后表面形成约10μm厚的致密陶瓷保护层，可有效地阻止氧气对材料的侵蚀。
Polyborosilazane with ethynyl group （PBSZ）was synthesized and hybrided with poly（silicon-containing arylacetylene）（PSA）resin to improve thermal-oxidation resistance of polyarylacetylene resin.The structure of PBSZ was characterized by FTIR,NMR and gel permeation chromatography （GPC）.The processing properties of PBSZ/PSA resin were investigated by rotational rheometer and DSC,and the thermostability and thermal-oxidation resistance of PBSZ/PSA resin were examined by TGA,SEM and EDS.The results show that PBSZ/PSA resin of-fers good processability,and could be cured at 210 ℃ with low exothermal heat.The cured resin residual yields up to 38.0% at 1 000 ℃ under air,and a dense protective layer about 60-80μm thickness is formed after being oxi-dized,which inhibits the materials from being oxidized by oxygen.Besides,the sinter of cured resin by 1 200 ℃ also has thermal-oxidation resistance,and a dense ceramic protective layer about 10μm thickness is produced after being oxidized at 1 200 ℃ and effectively keeps the materials from being oxidized by oxygen.