| 张剑,陈楚童,韩耀,张冰清,罗永明,徐彩虹.化学通报,2023,86(6):755-760. |
| 聚硼硅氮烷前驱体的合成及性能研究 |
| Synthesis and Study of polyborosilazane precursor |
| 投稿时间：2022-11-24 修订日期：2022-12-28 |
| DOI： |
| 中文关键词: 聚硅硼氮烷 陶瓷前驱体 氨气 介电性能 |
| 英文关键词:Polyborosilazane, Precusor, Ammonia atmosphere, Dielectric properties |
| 基金项目:国家自然科学基金项目(52002364)和 山东省自然科学基金项目(ZR2020LFG012)资助 |
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| 中文摘要: |
| 以三氯化硼和甲基氢二氯硅烷为原料，采用共氨解的方式合成了聚硼硅氮烷前驱体，并采用核磁共振波谱仪、傅里叶红外光谱仪、差式扫描量热仪、热重分析仪、光电子能谱、网络矢量分析仪等仪器对前驱体及其热解产物进行了表征。前驱体在1000 oC、氮气气氛下热解的陶瓷产率为71.1 %。在氨气气氛下热解可以有效降低热解产物中的碳含量，聚硼硅氮烷在900 oC氨气气氛下热解产物的碳含量低于1 %，并且该热解产物具有高的结晶温度、良好的抗氧化性能和介电性能，有望用于耐高温陶瓷基透波复合材料。 |
| 英文摘要: |
| Polyborosilazane precursor was synthesized by co-aminolysis reaction of BCl3 and MeHSiCl2. The precursor was characterized by NMR、IR、DSC and TGA. The ceramic yield of the precursor is 71.1 % upon pyrolysis at 1000 oC in N2. The carbon content in the pyrolytic product can be effectively reduced when the precursor was pyrolyzed under NH3 atmosphere, and which is less than 1 % for the sample obtained at 900 oC. The pyrolytic product has high crystallization temperature, good oxidation resistance and dielectric properties, suggesting high potential application for high temperature wave-transparent composites. |
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