Remarkably anisotropic conductive MWCNTs/polypropylene nanocomposites with alternating microlayers
Remarkably anisotropic conductive MWCNTs/polypropylene nanocomposites with alternating microlayers
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具有交替微层的显着各向异性导电 MWCNT/聚丙烯纳米复合材料
DOI：
10.1016/j.cej.2018.10.078
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发表时间：
2019-02
影响因子：
15.1
通讯作者：
Zhanhu Guo
中科院分区：
文献类型：
--
作者：
Kang Zhao;Suishui Li;Ming Huang;Xianzhang Shi;Guoqiang Zheng;Chuntai Liu;Kun Dai;Changyu Shen;Rui Yin;Zhanhu Guo
多层物体是自然界中最常见的复合材料，具有单个组件无法实现的出色性能。为了扩大具有优异各向异性性能的多层复合材料的应用，无疑需要简便、环保的制造方法和低成本的原材料。中国传统食品“千层饼”就是这种多层结构复合材料的一个例子，具有视觉吸引力和味道鲜美。借鉴这种食品的制备方法，通过组合聚合物熔融加工技术制备了具有纯聚丙烯（PP）和PP填充多壁碳纳米管（PPCNT）交替微层的各向异性导电聚合物复合材料（ACPC）。多层结构赋予ACPC内层导电、层间绝缘的特性。 X方向的电导率达到1S/m，比Z方向的电导率高出近16个数量级，与报道的同类材料相比，这是迄今为止最显着的导电各向异性。 ACPC 的各向异性功能使其能够用于电气和热管理应用，例如超小型集成电路、高度可靠的电气互连和各向异性热传导。考虑到所使用的原材料成本低廉且制备过程简便，该方法可以扩大规模用于工业生产，促进这种具有高性能和功能的ACPC在各种应用中实现。
Multilayered objects are some of the most common composites in nature with outstanding performance that cannot be achieved by a single component. To expand the application of multilayered composites with excellent anisotropic properties, facile and environmental friendly fabrication methods and low-cost raw materials are unambiguously required. The Chinese traditional food called “thousand-layer pie” is an example of such composites with multilayered structure, showing visual attractiveness and having delicious taste. Borrowing the idea from the method of preparing this food, anisotropic conductive polymer composites (ACPCs) with alternating microlayers of pure polypropylene (PP) and PP filled multi-walled carbon nanotubes (PPCNTs) were prepared by a combined polymer melt processing technique. The multilayered structure endowed the ACPCs with inner layer conduction but interlayer insulation. The electrical conductivity in X direction reached up to 1 S/m and exhibited a value almost 16 orders of magnitude higher than the value in Z direction, which was by far the most remarkable conductive anisotropy compared with the reported counterparts. The anisotropic functionality of the ACPCs enabled them to be used in electrical and thermal management applications, such as subminiature integrated circuits, highly reliable electrical interconnects and anisotropic thermal conduction. Considering the low-cost raw materials used and the facile preparation process, this approach can be scaled up for industrial production, promoting such ACPCs with high performance and functionality to be implemented in a variety of applications.
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影响因子：
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作者：
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作者：
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