BaTiO_3与BaTiO_3／PP复合膜的电性能关系的研究

Study on the Electrical Conductivity of BaTiO_3 and BaTiO_3/PP Compound Film

以聚丙烯（ＰＰ）为基材与高介电常数的ＢａＴｉＯ３复合而成的ＢａＴｉＯ３／ＰＰ复合膜是一种电性能优异的高频、交频电介质绝缘材料，它具有介质损耗小、介电常数不随频率而变化、防潮性能优良及价廉等优点．通过ＢａＴｉＯ３／ＰＰ复合膜的试制，研究了填料ＢａＴｉＯ３的表面处理，含量及介电常数等因素与ＢａＴｉＯ３／ＰＰ复合膜电性能间的关系．

The compound film of BaTiO3 /PP with PP as matrix is an excellent frequency,dielectric material. It has advantages of low dielectric loss, constant dielectric property under changing frequency, good moisture-resistant and low cost. The relationship between the surface treatment, BaTiO3 content, and dielectric constant of BaTiO3 powder and electrical conductivity of BaTiO3/PP compound film was studied and reported in this paper.