石墨烯/聚丙烯纳米复合材料组织与性能研究

Study on Microstructure and Mechanical Properties of Graphene/Polypropylene Nanocomposites

随着石墨烯制备水平和石墨烯应用技术水平的发展,使用石墨烯增强聚合物基纳米复合材料已成为当前研究的一个趋势。石墨烯(Graphene)根据不同的尺寸、类型和工艺可以分为很多不同的类型,本实验中使用的石墨烯纳米微片就是其中的一种。本实验将石墨烯纳米微片(GNP)涂覆在聚丙烯(PP)母料表面,通过热压工艺制备复合片,研究石墨烯纳米微片的不同添加量对复合片表面性能的影响。上述实验表明,石墨烯对聚丙烯自增强复合材料的表面吸热和散热性能有明显影响。与碳纳米管等纳米增强材料相比,石墨烯的成本较低,且该技术对石墨烯含量要求不高。随着航空航天、交通运输、体育休闲等诸多领域对产品轻量化的迫切需求,该成果具有巨大的经济价值和应用前景。

With the development of the level of graphene preparation and the level of graphene application technology, the use of graphene-reinforced polymer-based nanocomposites has become a trend of current research. Graphene can be classified into many different types according to different sizes, types and processes, and the graphene nanosheets used in this experiment are one of them. In this experiment, graphene nanosheets (GNP) were coated on the surface of polypropylene (PP) masterbatch and the composite sheets were prepared by hot pressing process to study the effect of different additions of graphene nanosheets on the surface properties of the composite sheets. The above experiments show that graphene has a significant effect on the surface heat absorption and heat dissipation properties of polypropylene self-reinforced composites. Compared with nano-reinforced materials such as carbon nanotubes, the cost of graphene is lower, and the technology does not require high graphene content. With the urgent demand for product lightweighting in many fields such as aerospace, transportation, sports and leisure, the results all have great economic value and application prospects.