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首页> 外文期刊>Journal of Applied Polymer Science >Studies on conductivity of acrylonitrile-butadiene rubber/LiCl0_4 composite and its modification by adding epoxy resin
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Studies on conductivity of acrylonitrile-butadiene rubber/LiCl0_4 composite and its modification by adding epoxy resin

机译：丙烯腈-丁二烯橡胶/ LiCl0_4复合材料的电导率及其添加环氧树脂的改性研究

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摘要

Solid polymer electrolytes based on acrylonitrile-butadiene rubber (NBR) and LiClO_4 were prepared and their conductivity was evaluated. The effect of nitrile group - CN/LiClO_4 mole ratio on the conductivity was investigated. The maximum conductivity of 1.21 × 10~(-4) Scm~(-1) (20°C) was achieved in the NBR/LiClO_4 composite at the - CN/LiClO_4 mole ratio of 1/2.5, which was in accordance with the strongest coordination between - CN and Li+ indicated by Fourier transform infrared spectrometry measurement. The conductivity was further increased by two to three times when 30 phr epoxy resin was introduced into NBR, and the conductivity could retain around the maximum value with the - CN/LiClO _4 mole ratio ranged from 1/2.5 to 1/3.5, while the conductivity of NBR/LiClO_4 composite existed a decrease in the same range. Field emission scanning electron microscopy and atomic force microscopy characterization showed that epoxy resin significantly improved the dispersion of LiClO_4, leading to better surface smoothness of NBR/epoxy resin/LiClO_4 composite film and contributing to the increase of ionic conductivity.
机译：制备了基于丙烯腈-丁二烯橡胶（NBR）和LiClO_4的固体聚合物电解质，并评估了它们的电导率。研究了腈基-CN / LiClO_4摩尔比对电导率的影响。在NBR / LiClO_4复合材料中，CN / LiClO_4摩尔比为1 / 2.5时，最大电导率达到1.21×10〜（-4）Scm〜（-1）（20°C），这与傅立叶变换红外光谱法测量表明-CN和Li +之间的最强配位。当将30 phr环氧树脂引入NBR中时，电导率进一步提高了2到3倍，并且-CN / LiClO _4摩尔比为1 / 2.5至1 / 3.5时，电导率可以保持在最大值附近。在相同范围内，NBR / LiClO_4复合材料的电导率均有所下降。场发射扫描电子显微镜和原子力显微镜表征表明，环氧树脂显着改善了LiClO_4的分散性，从而使NBR /环氧树脂/ LiClO_4复合膜具有更好的表面光滑度，并有助于提高离子电导率。

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