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SiC-Based Fibers Synthesized from Hybrid Polymer of Polycarbosilane and Polyvinylsilane

机译:聚碳硅烷和聚乙烯基硅烷杂化聚合物合成的SiC基纤维

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摘要

The ceramization mechanism of the irradiated porycarbosilane-20mass%polyvinylsilane hybrid polymer was investigated in the converting process from polymer to ceramic. In the heat treatment of the irradiated hybrid polymer, hydrogen gas evolution occurs in the three temperature ranges around 850, 1050, and 1370K. In the temperature range above 1000K, the radicals are accumulated rapidly by restriction of molecular motion in converting from polymer to ceramic. Change of the FT-IR spectra of the fibers by heat treatment after irradiation is also measured.
机译:研究了从聚合物到陶瓷的转化过程中,辐照的聚丙烯酰胺-20质量%聚乙烯基硅烷杂化聚合物的陶瓷化机理。在辐照的杂化聚合物的热处理中,氢气在850、1050和1370K的三个温度范围内逸出。在高于1000K的温度范围内,自由基在从聚合物转变为陶瓷的过程中受分子运动的限制而迅速积累。还测量了辐射后通过热处理的纤维的FT-IR光谱的变化。

著录项

  • 来源
  • 会议地点 Osaka(JP);Osaka(JP);Osaka(JP);Osaka(JP)
  • 作者单位

    Department of Metallurgy and Materials Science, College of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan;

    Department of Metallurgy and Materials Science, College of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan;

    Department of Metallurgy and Materials Science, College of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan;

    Takasaki Radiation Chemistry Research Establishment, Japan Atomic Energy Research Institute, Takasaki, Gunma 370-1292, Japan;

    Takasaki Radiation Chemistry Research Establishment, Japan Atomic Energy Research Institute, Takasaki, Gunma 370-1292, Japan;

    Takasaki Radiation Chemistry Research Establishment, Japan Atomic Energy Research Institute, Takasaki, Gunma 370-1292, Japan;

    Central Research Laboratory, Mitsui;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TQ174.58;
  • 关键词

    silicon carbide fiber; polycarbosilane; polyvinylsilane; radiation curing; gas analysis; electron spin resonance (ESR) measurement;

    机译:碳化硅纤维;聚碳硅烷聚乙烯基硅烷辐射固化气体分析电子自旋共振(ESR)测量;

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