石墨烯及其衍生物改性聚酰亚胺的研究进展

摘要

The polyimide provides high thermal stability ,mechanical properties ,electrical properties and chemical stability. Graphene which exhibits excellent physical properties and chemical properties is an excellent reinforcing material of composite. Filling of graphene into polyimide to make composite can improve the properties of polyimide composite to a large extent ,which can meet the requirements of the high-tech product manufacture on material property. This paper presented a review of the research progress of polyimide modified with graphene and its derivative at home and abroad in recent years ,and discussed emphatically on the preparation and modify methods of graphene ,preparation method and properties of graphene-polyimide composite. Finally we prospected the development tendency of application of graphene-polyimide composite.%聚酰亚胺（polyimide，PI）具有优异的热稳定性、机械性能、电学性能和化学稳定性。石墨烯（Graphene， G）具有优良的物理和化学特性，是一种良好的复合材料的增强材料。将石墨烯及其衍生物纳米片填充到聚酰亚胺材料中，制备复合材料，能很大程度提升聚酰亚胺复合材料的性能（力学、热力学、电学等性能），以满足随着高新科技的发展带来产品制造对材料性能的要求。综述了近年来国内外有关石墨烯及其衍生物改性聚酰亚胺制备复合材料的研究进展，重点阐述了石墨烯的制备及改性方法、复合材料的制备方法及性能，最后对复合材料的发展趋势和应用前景进行了展望。