Preparation and properties of elastomeric graphene aerogel thermal interface materials
HOU Dewang
XU Yuze
GUO Cong
LIU Lin
LI Chengjie
Abstract：Graphene aerogel is a material with a continuous 3D network structure formed via intermolecu-lar forces between graphene sheets.It exhibits advantages such as lightweight,low density,and excellent thermal conductivity,showing great potential for application in high-performance thermal interface materi-als.However,the high porosity and poor mechanical elasticity of pure graphene aerogels limit their practi-cal use in such applications.To address this,this study employed graphene oxide(GO)and natural rubber latex(NRL)as raw materials to fabricate a graphene/natural rubber latex composite aerogel(GNA)through chemical reduction and self-assembly.By leveraging the π-π interactions between graphene layers,a continuous three-dimensional thermally conductive pathway was successfully constructed,achieving a vertical thermal conductivity of 0.35 W/(m·K)in the composite.Meanwhile,the incorporation of natu-ral rubber latex into the pores of the graphene aerogel endowed the composite with outstanding mechanical strength and elasticity,including a tensile strength of over 3.0 MPa and an elongation at break exceeding 400%.This work provides a new strategy for the application of graphene aerogel-based composites in ther-mal management.
Keywords：graphene aerogelnatural rubber latexthermal interface materialsthermal conductivity
Publication Date：2026-08-25
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：8( 565-572 )