硅硼碳氮陶瓷前驱体聚硼硅氮烷的合成与表征
Synthesis and Characterization of Polyborosilazane for Silicoboron-Carbonitride Ceramic
MALIK Hamza 1申键 1唐滋成 1刘勇2
作者信息
- 1. 东华大学材料科学与工程学院纤维材料改性国家重点实验室,上海 201620
- 2. 东华大学材料科学与工程学院纤维材料改性国家重点实验室,上海 201620;东华大学高性能纤维及制品教育部重点实验室,上海 201620
- 折叠
摘要
以三氯化硼(BCl3)、三氯硅烷(HSiCl3)和六甲基二硅氮烷(Me6Si2NH)为原料,通过聚合物前驱体转化陶瓷(polymer-derived ceramics,PDCs)法成功合成了硅硼碳氮(SiBNC)陶瓷前驱体——聚硼硅氮烷(PBSZ).采用傅里叶变换红外光谱、核磁共振、X射线光电子能谱、热重分析和差示扫描量热对PBSZ的结构和热性能进行分析.结果表明,PBSZ结构中存在硅氮硼(Si—N—B)网络和六元硼氮(B-N)环.在氮气中,800 ℃时PBSZ的陶瓷产率为53.9％.
Abstract
A silicoboron-carbonitride(SiBNC)ceramic precursor,polyborosilazane(PBSZ),was successfully synthesized using boron trichloride(BC13),trichlorosilane(HSiCl3)and hexamethyldisilazane(Me6Si2NH)as raw materials through the polymer-derived ceramics(PDCs)method.Fourier transform infrared(FTIR)spectroscopy,nuclear magnetic resonance(NMR),X-ray photoelectron spectroscopy(XPS),thermogravimetric analysis(TGA)and differential scanning calorimeter(DSC)were used to analyze the structure and high-temperature performance of the obtained PBSZ.Results showed that the network of silicon nitrogen boron(Si—N—B)and six-membered boron nitrogen(B—N)rings were presented in the PBSZ structure.The ceramic yield of the synthesized PBSZ at 800℃ in a nitrogen atmosphere was 53.9％.
关键词
硅硼碳氮(SiBNC)陶瓷/陶瓷前驱体/聚硼硅氮烷(PBSZ)/聚合物前驱体转化陶瓷(PDCs)法Key words
silicoboron-carbonitride(SiBNC)ceramic/ceramic precursor/polyborosilazane(PBSZ)/polymer-derived ceramics(PDCs)method引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据