Nowadays people have a fancy for good electrically and thermally conductivity adhesives because they have wide applications compared with the ordinary adhesives, especially in the field of electronic packaging. However, the cost is subject to high volume content of the metal fillers, which can't be reduced effectively. This review summarizes the latest research work and analyzes the reported methods aimed to solve this kind of problem in recent years. Nanocarbon materials, such as carbon nanotubes (CNTs) and graphene, have excellent electrical, mechanical and thermal properties, which have been widely used as fillers in the composites. By mixing them with metal fillers, it is able to reduce 10 wt% ~20 wt% content of metal fillers. Especially, CNTs as one-dimensional nano material could bridge the neighboring conductive metal fillers for both reducing the metal content and effectively improving the electrical, mechanical and thermal properties of as-prepared composites. By choosing different polymer matrixes such as thermal plastic and thermal set resin, the mechanical properties of the adhesive can be further improved and satisfy with the packaging requirements of flexible electrical devices. In addition, we think that it is a good way to improve the electrical and thermal properties by sintering the nanoparticles at high temperature, which are synthesized by chemistry reaction.

Contents
1 Introduction
2 The performance of CNTs modified adhesives
2.1 Electrical and mechanical properties
2.2 Thermal properties
3 The performance of graphite and graphene modified adhesives
4 Conclusion and outlook