Effect of carbonization temperature on the structure and microwave absorbing properties of hollow carbon fibres
Effect of carbonization temperature on the structure and microwave absorbing properties of hollow carbon fibres
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碳化温度对中空碳纤维结构及吸波性能的影响
DOI：
10.1016/j.ceramint.2011.02.017
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发表时间：
2011-08
影响因子：
5.2
通讯作者：
Long, Chunguang
中科院分区：
文献类型：
--
作者：
Xie, Wei;Cheng, Haifeng;Chu, Zengyong;Chen, Zhaohui;Long, Chunguang
通过在氮气中在550至950 °C范围内的温度下碳化聚丙烯腈（PAN）中空固化纤维1小时来制备一系列聚丙烯腈基中空碳纤维（PAN-HCF）。研究了炭化温度对PAN高导电性纤维的结构、元素组成、表面电导率、电磁参数和反射率的影响。结果表明，所制备的PAN-HCF未发生石墨化，碳含量和表面电导率随炭化温度的升高而增加。当碳化温度为750 °C时，PAN-HCF/树脂复合材料在6.06 GHz处的反射率为−7.50 dB，反射率低于−5 dB的频段为6 GHz。
A series of polyacrylonitrile-based hollow carbon fibres (PAN-HCFs) were prepared by carbonizing polyacrylonitrile (PAN) hollow cured fibres at temperature ranging from 550 to 950 °C for 1 h in nitrogen. The effects of carbonization temperature on the structure, elemental compositions, surface electrical conductivity, electromagnetic parameters and reflectivity of PAN-HCFs were investigated. Results indicate that the obtained PAN-HCFs have not been graphitized and the C content and surface electrical conductivity increases as the carbonization temperature increases. The reflectivity of composites of PAN-HCFs and resin is −7.50 dB at 6.06 GHz and the band of the reflectivity under −5 dB is 6 GHz when the carbonization temperature is 750 °C.
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影响因子：
10.9
作者：
Elisa Barbosa-Coutinho;V. Salim;C. P. Borges
通讯作者：
Elisa Barbosa-Coutinho;V. Salim;C. P. Borges
影响因子：
4.3
作者：
VANZURA, EJ;BAKERJARVIS, JR;JANEZIC, MD
通讯作者：
JANEZIC, MD
影响因子：
9.5
作者：
J. Su;A. Lua
通讯作者：
J. Su;A. Lua
影响因子：
10.9
作者：
Cláudio de Almeida Filho;A. Zarbin
通讯作者：
Cláudio de Almeida Filho;A. Zarbin
影响因子：
2.1
作者：
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通讯作者：
C. Neo;V. Varadan