【摘要】 用电声脉冲法(PEA)测量了纯环氧试样在313K(玻璃化温度以下)及343K(玻璃化温度以上)时的空间电荷分布,并测量了两种温度不同电场强度下的空间电荷特性。实验发现两种温度下的空间电荷特性具有明显的差异。并对环氧树脂表面水分对空间电荷特性的影响进行了讨论。更多还原

【Abstract】 The space charge distribution of filler free epoxy resin at temperature below 313K and above 343K are measured with the pulsed electro-acoustic(PEA) method.The space charge distributions under different electrical field at each temperature are also investigated.The results show that the space charge characteristics at each temperature had obvious diversity.The influence of the water content on the space charge generation is also shown and discussed.更多还原