Multifunctional epoxy resin/polyacrylonitrile-lithium trifluoromethanesulfonate composites films with very high transparency, high dielectric permittivity, breakdown strength and mechanical properties
Multifunctional epoxy resin/polyacrylonitrile-lithium trifluoromethanesulfonate composites films with very high transparency, high dielectric permittivity, breakdown strength and mechanical properties
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多功能环氧树脂/聚丙烯腈-三氟甲磺酸锂复合薄膜具有极高的透明度、高介电常数、击穿强度和机械性能
DOI：
10.1002/app.45218
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发表时间：
2017-09
影响因子：
3
通讯作者：
Aijuan Gu
中科院分区：
文献类型：
--
作者：
Sheng Sun;Longhui Zheng;Li Yuan;Qingbao Guan;Guozheng Liang;Aijuan Gu
尖端领域迫切需要具有高介电常数（high-k）、击穿强度和机械性能的多功能透明复合膜。本文以环氧树脂（EP）和聚丙烯腈（PAN）-三氟甲烷磺酸锂（LiTf）复合物为基础，通过构建独特的交联结构，制备了新型多功能薄膜。与以前报道的高k材料相比，EP/（PAN-LiTf）薄膜同时显示出非常高的透明度、良好的柔韧性、高拉伸强度和击穿强度。对于0.22EP/当EP含量为22wt%时，PAN-LiTf薄膜的平均透过率和断裂伸长率高达91%（600-800 nm）和12.7%;其介电常数、交流击穿强度和最大能量密度分别约为EP树脂的4.9、1.8和15.2倍，完全克服了导体/聚合物复合材料中的粘性问题。深入讨论了EP/（PAN-LiTf）薄膜的这些优异性能的原因，认为是由于EP/（PAN-LiTf）薄膜的独特结构所致。© 2017 Wiley Periodicals，Inc. J.应用聚合物Sci. 2017，134，45218。
Multifunctional transparent composite films with high dielectric permittivity (high-k), breakdown strength, and mechanical properties are urgently required by cutting-edge fields. Herein, novel multifunctional films were facilely prepared through building unique cross-linked structure based on epoxy resin (EP) and polyacrylonitrile (PAN)-lithium trifluoromethane sulfonate (LiTf) complex. Compared with high-k materials reported previously, EP/(PAN-LiTf) films simultaneously show very high transparency, good flexibility, high tensile, and breakdown strengths. For 0.22EP/(PAN-LiTf) film with 22 wt % EP, its average transmittance and elongation at break are as high as 91% (600–800 nm) and 12.7%, respectively; moreover, its dielectric permittivity, AC breakdown strength and the maximum energy density are severally about 4.9, 1.8, and 15.2 times of those of EP resin, completely overcoming the sticky problems in conductor/polymer composites. The origin behind these attractive properties is intensively discussed, and believed to be attributed to the unique structure of EP/(PAN-LiTf) films. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45218.
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DOI：
10.1109/tdei.2014.004415
发表时间：
2014-04
影响因子：
3.1
作者：
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影响因子：
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作者：
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