用在不同温度下热处理的方法制备了具有不同结晶度的尼龙1010试样,通过测量热释电流研究了试样的分子链段运动与电荷存储输运特性.热释电流谱上显示两个电流峰,通过研究峰电流与极化场强的关系发现,62℃左右的α峰为偶极松弛峰,109℃左右的ρ峰为空间电荷峰.随着结晶度从0.05%增加到46.3%,尼龙1010的偶极松弛活化能由0.98增加到1.18eV,显示分子链段运动变得困难;陷阱深度则变浅,由1.36降低到1.13eV,表明适当的结晶度可提高对载流子的俘获能力,改变材料中电荷的存储与输运特性.
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