高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (3): 470.

• 研究简报 • 上一篇    

一类新型PTC复合材料的制备及性能

杜伟坊, 杜海清   

  1. 湖南大学材料科学及应用化学研究所, 长沙, 410082
  • 收稿日期:1993-07-10 出版日期:1994-03-24 发布日期:1994-03-24
  • 通讯作者: 杜伟坊,男,30岁,博士,讲师
  • 作者简介:杜伟坊,男,30岁,博士,讲师

Preparation and Properties of a New Series of PTC Composites

DU Wei-Fang, DU Hai-Qing   

  1. Institute of Materials Science and Applied Chemistry, Hunan University, Changsha, 410082
  • Received:1993-07-10 Online:1994-03-24 Published:1994-03-24

PDF (PC)

被引次数

6

关键词: 正温度系数, 聚乙烯, YBa2Cu3O7-x

Abstract: A new series of composites exhibiting a large positive temperature coefficient (PTC)of resistivity effect have been prepared by incorporating YBa2Cu3O7-x particles into polyethylene matrix.The PTCeffect of YBa2Cu3O7-x/polyethylene composites, which was caused by the volume effect of polyethylene, was maximum with 10 orders of magnitude at specimen with 30 vol% YBa2Cu3O7-x.The temperature at which resistivity increases rapidly depends on the melting point of polyethylene.

Key words: PTC, Polyethylene, YBa2Cu3O7-x

TrendMD: