Expanded graphite/polydimethylsiloxane composites with high thermal conductivity
Expanded graphite(EG)/polydimethylsiloxane(PDMS)composites are prepared through a solution method.Exfoli-ated graphite derived from natural graphite flake is infiltrated in PDMS prepolymer solution and then hot pressed in a steel mould at 80 ℃for 2 h.The expanded graphite self-agglomerate into a continuous network,and the PDMS also crosslink into a complete ma-trix.Optical microscope investigation reveals the interpenetrating network structures in the composites.There is a linear relationship between thermal conductivity and mass fraction of EG.The composites with EG mass fraction of 10.0%exhibit 5.79 W/m·K which should be attributed to the interconnect graphite network.Meanwhile,the composites have good flexibility because of its con-tinuous PDMS network.
Polymer-Matrix composites (PMCs) Thermal conductivity Compression moulding.
Zechao Tao Hongbao Wang Xianglei Wang Quangui Guo
Key Laboratory of Carbon Materials,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China
国内会议
长沙
英文
1-4
2015-11-05（万方平台首次上网日期，不代表论文的发表时间）