石墨烯定向排列增强聚合物基复合材料研究进展

摘要/Abstract

摘要： 在树脂基体中引入以石墨烯为代表的碳纳米材料可显著改善复合材料的力学性能、导热性能以及多功能性,从而为传统的复合材料注入新的内涵。纳米材料在复合材料中的排列形式将直接影响复合材料的性能。据文献报道,相比随机排列增强的复合材料,石墨烯定向排列增强的石墨烯/聚合物复合材料的强度可提高0.5倍,韧性提高约1.2倍,热导率提高约1倍。对此,本文总结了石墨烯定向排列增强聚合物复合材料的制备方法,包括层层自组装法、流动剪切诱导法、抽滤诱导定向法、外场诱导定向法等;并简述了每种制备方法的优缺点;分析了石墨烯定向排列对复合材料力学性能、导热性能、导电性能的增强效果,在此基础上,展望了石墨烯定向排列增强聚合物复合材料的发展前景。

关键词: 定向排列, 石墨烯, 聚合物基复合材料

Abstract: The introduction of carbon nanomaterials, such as graphene, in the resin matrix can significantly improve the mechanical properties, thermal conductivity and versatility of the composites, consequently introducing innovation into the traditional composites. The orientation of nanomaterial in composites will directly affect the properties of the composites. According to the data in literatures, compared to randomly oriented nanocomposites, the strength of graphene/polymer composites reinforced with aligned graphene is 50% higher, and the thermal conductivity of those is approximately 100% higher. What is more, the aligned graphene reinforced polymer composites can see an increase in toughness by approximately 1.2 times compared to randomly aligned graphene reinforced polymer composites. In this regard, this paper summarizes the preparation methods of aligned-graphene/polymer composites, including layer-by-layer self-assembly method, flow-shear induced orientation method, vacuum-assisted self-assembly method, external field induced orientation method, etc., and briefly describes the advantages and disadvantages of each preparation method. The enhancement in the mechanical property, thermal conductivity and electrical conductivity of the composites caused by aligned graphene is analyzed. On this basis, the development and prospects of the development of aligned-graphene/polymer nanocomposites are discussed.

Key words: alignment, graphene, polymer composites

中图分类号:

TB332

杨士萱, 矫维成, 楚振明, 张辰威. 石墨烯定向排列增强聚合物基复合材料研究进展[J]. 玻璃钢/复合材料, 2019, 0(3): 92-100.

YANG Shi-xuan, JIAO Wei-cheng, CHU Zhen-ming, ZHANG Chen-wei. RESEARCH PROGRESS OF ALIGNED GRAPHENE REINFORCED POLYMER COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2019, 0(3): 92-100.

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