石墨烯的功能化及其水泥基复合材料的研究进展

Research Progress on Functionalization of Graphene Sheet for Cementitious Composites

石墨烯具有优越的力学、热学、电学等性能,目前已经成为材料科学领域的研究热点。将石墨烯掺入水泥基复合材料中预期将能够提高其强度、改善其耐久性能,并使水泥基复合材料具有优异的的导电性能和压敏性能。石墨烯与水泥基材料复合的过程中仍存在许多亟需解决的问题,包括如何抑制石墨烯的团聚,如何优化石墨烯与基体的界面性能等等。本研究在现有功能化石墨烯及其水泥基复合材料研究成果的基础上,综述了石墨烯的功能化及基于石墨烯的水泥基复合材料的性能研究,为进一步开展水泥基石墨烯复合材料的研究提供参考。

Graphene sheet(GS)is a two-dimensional carbon material,which is composed of monolayers of carbon atoms tightly packed into six fold symmetry.Because of its extraordinary mechanical,thermal and electrical properties,GS has become a hot topic in material science.However,the incorporation of GS into cementitious composites still faces several challenges to be solved.,The main challenges include how to prevent the agglomeration of GS in cement matrices and how to optimize the interfacial properties between the nanofiller and cement hosts.Graphene can be used in cementitious composite material to increase strength,to improve durability,and to make electricity conductivity and pressure sensitiveity better.In this paper,the present research achievements in this field are summarized,particularly functionalization of Graphene and its cementitious composites,providing reference for further study on this topic.