Polymer-based conductive composites were broadly applied in many fields

such as electromagnetic shielding

electric conduction

antistatic materials

self-limiting temperature heating

heat conduction and so on. Currently

the fillers used in electrically conductive polymer composites are in solid state during the processing

including metal

carbon black

graphite and graphene. In contrast to this

the low melting point metals are in liquid state as conductive fillers during the processing

which allows to reduce the viscosity of the composites

improve the processability

reduce the wear on equipment

reduce the particle size of fillers and increase the length-diameter ratio of particle. In this paper

LMPM/polymer composites’ preparation methods

and the main features of composite’s structure

conductivity

rheology and mechanical properties were reviewed

LMPM/polymer conductive composite’s superiority compared with other polymer-based conductive composites were introduced

and some deficiencies in this field were pointed out.