引用本文:
董先明, 张淑婷, 罗颖, 符若文, 章明秋. 炭黑/炭纤维/聚甲基丙烯酸丁酯导电复合材料的导电性和气敏性[J]. 应用化学,
2006, 23(11): 1301-1303.
Citation: DONG Xian-Ming, ZHANG Shu-Ting, LUO Yinga, FU Ruo-Wen, ZHANG Ming-Qiu. Conducting and Gas-Sensing Properties of CB/VGCF/PBMA Conductive Composites[J]. Chinese Journal of Applied Chemistry, 2006, 23(11): 1301-1303.
Citation: DONG Xian-Ming, ZHANG Shu-Ting, LUO Yinga, FU Ruo-Wen, ZHANG Ming-Qiu. Conducting and Gas-Sensing Properties of CB/VGCF/PBMA Conductive Composites[J]. Chinese Journal of Applied Chemistry, 2006, 23(11): 1301-1303.
炭黑/炭纤维/聚甲基丙烯酸丁酯导电复合材料的导电性和气敏性
摘要:
研究了原位聚合法制备的炭黑/气相生长炭纤维/聚甲基丙烯酸丁酯(CB/VGCF/PBMA)复合材料的导电性和在饱和有机蒸气中的电阻响应性能。结果表明,通过加入质量分数为1%的VGCF即可使炭黑/聚甲基丙烯酸丁酯复合材料的电阻率1 040Ω·m降至195Ω·m,在这种三元复合体系中存在一种二阶逾渗效应;而且能使复合材料的负蒸气系数效应(NVC)强度从15.6降至2.2。
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关键词:
- 炭黑
- / 气相生长炭纤维
- / 聚合物基导电复合材料
- / 气敏性
English
Conducting and Gas-Sensing Properties of CB/VGCF/PBMA Conductive Composites
Abstract:
Carbon black/vapor-grown carbon fibres/poly(butyl methacrylate)(CB/VGCF/PBMA) conductive composite was fabricated by polymerization filling.Conducting property and electrical resistance responsivity of the composite in saturated organic vapors were investigated.The experimental results indicate that 1%(mass fraction) of VGCF was able to decrease the electrical resistivity of the composite from 1 040 Ω·cm to 195 Ω·cm,probably due to an additional percolation process.Adding small amount of VGCF into the composites notably decrease the negative vapor coefficient(NVC) intensity of the composites from 15.6 to 2.2.
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