Microwave Absorbing Property of Pre-oxidized PAN Fibers Carbonized in BCl3
Source abstract
Abstract
PAN预氧丝在BCl 3 气氛中进行碳化处理, 研究了处理温度与时间对纤维B元素含量的影响. 采用X射线光电子能谱(XPS)、傅立叶红外分析(FTIR)、扫描电镜(SEM)对碳化后纤维的形貌与结构进行表征, 并对其吸波性能进行分析. 结果表明: PAN预氧丝在BCl 3 气氛下碳化后, 纤维表面生成了BCN包状附着物, 纤维中有B?N键的生成. 与氮气中碳化的碳纤维相比, 纤维的介电常数有所降低, 介电常数虚部降低得较快, 有利于改善纤维的吸波性能.
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Source: openalex_inverted_index · Quality: short
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Fiber-reinforced polymer composites · Advancements in Battery Materials
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References (4)
Show source-provided references
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