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不锈钢纤维填充导电膜片的性能研究

侯俊峰 俞友明 卢克阳 傅峰

侯俊峰, 俞友明, 卢克阳, 傅峰. 不锈钢纤维填充导电膜片的性能研究[J]. 北京林业大学学报, 2015, 37(9): 78-84. doi: 10.13332/j.1000-1522.20150103
引用本文: 侯俊峰, 俞友明, 卢克阳, 傅峰. 不锈钢纤维填充导电膜片的性能研究[J]. 北京林业大学学报, 2015, 37(9): 78-84. doi: 10.13332/j.1000-1522.20150103
HOU Jun-feng, YU You-ming, LU Ke-yang, FU Feng. Properties of conductive films filled with stainless steel fiber.[J]. Journal of Beijing Forestry University, 2015, 37(9): 78-84. doi: 10.13332/j.1000-1522.20150103
Citation: HOU Jun-feng, YU You-ming, LU Ke-yang, FU Feng. Properties of conductive films filled with stainless steel fiber.[J]. Journal of Beijing Forestry University, 2015, 37(9): 78-84. doi: 10.13332/j.1000-1522.20150103

不锈钢纤维填充导电膜片的性能研究

doi: 10.13332/j.1000-1522.20150103
基金项目: 

林业公益性行业科研专项(201104004)。

详细信息
    作者简介:

    侯俊峰。主要研究方向:木质功能材料。Email:chinajunfeng2008@163.com 地址:100091 北京市颐和园后中国林业科学研究院木材工业研究所。

    责任作者:

    傅峰,博士,研究员。主要研究方向:木质功能材料。Email: feng@caf.ac.cn 地址:同上。

Properties of conductive films filled with stainless steel fiber.

  • 摘要: 为探究不锈钢纤维长度与填充量对导电膜片导电性能与电磁屏蔽性能的影响,将不锈钢纤维均匀地铺撒在涂有脲醛树脂和丙烯酸树脂的表层纸上热压,制备具有电磁屏蔽功能的不锈钢纤维填充导电膜片。首先通过微观结构表征,分析不锈钢纤维在导电膜片平面和断面内的搭接状况;然后采用四电极法与同轴线法测试导电膜片的体积电阻率及电磁屏蔽效能;最后通过理论模拟探究不锈钢纤维填充导电膜片的电磁屏蔽机理。结果表明:1)随着不锈钢纤维填充量的增加,导电膜片平面和断面内不锈钢纤维之间交叉排列的混乱程度不断增加,并以随机排列的形式相互交织形成了有效的“三维导电网络”。2)随着不锈钢纤维长度和填充量的不断增加,导电膜片的体积电阻率逐渐减小,而其电磁屏蔽效能逐渐增大。3)不锈钢纤维的填充量、导电膜片厚度对导电膜片的导电性能影响显著。4)当不锈钢纤维长度为15 mm、填充量为250 g/m2时,导电膜片的体积电阻率降低为6.493×10-3 Ω·cm,电磁屏蔽效能为37.77~51.42 dB,达到中等屏蔽效果,适用于对电磁兼容要求较高的场合。5)理论模拟结果表明,吸收损耗在导电膜片对电磁辐射的屏蔽效果中占有很大的比重,导电膜片表现出了很好的吸波特性。

     

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出版历程
  • 收稿日期:  2015-04-03
  • 刊出日期:  2015-09-30

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