Position: Home > Articles > Conductive Properties of UF Adhesive Sheets Filled with Copper Fiber
Scientia Silvae Sinicae
2009,45
(7)
169-174
铜纤维/脲醛树脂复合膜片的导电性能
作 者：
卢克阳;傅峰;蔡智勇;张恩玖
单 位：
中国林业科学研究院木材工业研究所美国林产品研究所浙江久盛地板有限公司;中国林业科学研究院木材工业研究所;美国林产品研究所
关键词：
铜纤维;脲醛树脂;导电膜片;渗滤效应;三维导电网络
摘 要：
Conductive sheets consisting of copper fibers,urea formaldehyde resins and decorative papers were prepared by hot pressing.The results showed that the sheet resistance of composites had mutations with the increasing of copper fiber filling ratio.The sheets exhibited percolation threshold effect.The threshold of sheets filled with 5 mm copper fibers was about 16% and the threshold of sheets filled with 10 mm or 15 mm copper fibers were about 8.7%.Meanwhile,the sheets showed piezoresistive characteristics and the conductive structure of sheets have been gradually developped into "three-dimensional conductive network" from "two-dimensional conductive network".Moreover,the length of copper fibers showed strong effects to the conductivity.Under the same fiber filling ratio,the larger length of fiber was,the higher conductivity and the lower percolation threshold could be.
译 名：
Conductive Properties of UF Adhesive Sheets Filled with Copper Fiber
作 者：
Lu Keyang1 Fu Feng1 Cai Zhiyong2 Zhang Enjiu3(1.Research Institute of Wood Industry,CAF Beijing 100091;2.USDA Forest Service,Forest Products Laboratory,WI USA Madison 53726-2398;3.Zhejiang Jiusheng Floor Co.,Ltd Huzhou 313009)
关键词：
copper fiber;urea formaldehyde resin;conductive sheet;percolation threshold effect;three-dimensional conductive network
摘 要：
Conductive sheets consisting of copper fibers,urea formaldehyde resins and decorative papers were prepared by hot pressing.The results showed that the sheet resistance of composites had mutations with the increasing of copper fiber filling ratio.The sheets exhibited percolation threshold effect.The threshold of sheets filled with 5 mm copper fibers was about 16% and the threshold of sheets filled with 10 mm or 15 mm copper fibers were about 8.7%.Meanwhile,the sheets showed piezoresistive characteristics and the conductive structure of sheets have been gradually developped into "three-dimensional conductive network" from "two-dimensional conductive network".Moreover,the length of copper fibers showed strong effects to the conductivity.Under the same fiber filling ratio,the larger length of fiber was,the higher conductivity and the lower percolation threshold could be.
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