| 聚硅乙炔改性硅硼碳氮前驱体的合成与性能研究 |
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| 引用本文： | 王怀荣,葛凯凯,韩伟健,赵京波,赵,彤.聚硅乙炔改性硅硼碳氮前驱体的合成与性能研究[J].宇航材料工艺,2011,41(6):59-62. |
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| 作者姓名： | 王怀荣 葛凯凯 韩伟健 赵京波 赵 彤 |
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| 作者单位： | 1. 北京化工大学,北京,100029
2. 中国科学院化学研究所,北京,100190 |
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| 摘 要： | 以聚硅乙炔(PMSA)为交联剂,改性硅硼碳氮(SiBCN)陶瓷前驱体,对前驱体的合成与裂解行为进行了详细研究.该前驱体陶瓷产率高(＞80wt％),并且陶瓷产物致密、抗氧化性能优良.采用FT-IR对改性前驱体的结构进行了表征,采用DSC、TGA、XRD、马弗炉煅烧等方法对改性前驱体固化行为及其裂解产物的高温稳定性能、抗氧...
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| 关 键 词： | 聚硅乙炔 硅硼碳氮 陶瓷前驱体 抗氧化性能 |
SynthesisandPropertiesofSiBCNPrecursorsModifiedbyPMSA |
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| Wang Huairong,Ge Kaikai,Han Weijian,Zhao Jingbo,Zhao Tong.SynthesisandPropertiesofSiBCNPrecursorsModifiedbyPMSA[J].Aerospace Materials & Technology,2011,41(6):59-62. |
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| Authors: | Wang Huairong Ge Kaikai Han Weijian Zhao Jingbo Zhao Tong |
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| Institution: | Wang Huairong1 Ge Kaikai2 Han Weijian2 Zhao Jingbo1 Zhao Tong2(1 Beijing University of Chemical and Technology,Beijing 100029)(2 Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190) |
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| Abstract: | A novel modified SiBCN precursors(SiBCN/PMSA)were obtained by blending SiBCN with polymethylsilylacetylene(PMSA)as cross-linking agent.The structure of the modified precursors was characterized by FT-IR.The curing behavior of the modified precursor and the thermal stability,oxidative resistance of the ceramic residues were evaluated by DSC,TGA,XRD and muffle furnaces calcination methods.The results show that PMSA was compatible with SiBCN precursor.The ceramic yields increased significantly due to the cross... |
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| Keywords: | Blends Polysilylacetylene Ceramic Precursor Oxidative stability |
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