摘要
用磁场控制激光-感应复合法制备的纳米铁在环氧树脂中的排列,制备了具有优异电学性能的一维有序纳米复合材料。在环氧树脂中加入重量百分数为2.8%～8%的纳米铁粉时,磁场作用下固化后的有序纳米复合材料的体积电阻率较无磁场作用下固化的降低了2个数量级,介电常数增加了50%,介电损耗增加了163%。
A one-dimensional ordered nanocomposite was fabricated by utilizing magnetic field to control the alignment of iron nanoparticles prepared by hybrid laser and induction in epoxy resin. It exhibits an excellent improvement in volume resistivity, dielectric constant and dielectric loss of the nanocomposite. With the loading weight fraction of 2.8%-8% nano-Fe, the volume resistivity of the nanocomposite decreases by 2 orders of magnitude, and the dielectric constant and dielectric loss of the nanocomposite increase 50% and 163% with respect to the unaligned nanocomposite, respectivity.
出处
《中国粉体工业》
2008年第4期11-15,共5页
China Powder Industry
基金
西安交通大学电力设备电气绝缘国家重点实验室开放基金(06-04)
华中科技大学材料成形与模具技术国家重点实验室开放基金(05-14)联合资助
关键词
纳米铁颗粒
聚合物纳米复合材料
磁场
排列
Iron nanoparticle
Polymer nanocomposite
Magnetic field
Alignment
