Thermal conductivity performance of PTFE-based modification composites
A finite element numerical model was established in this paper to simulate a two-dimensional steady-state thermal conductivity measurement based on Fouriers law.The reliability of the numerical model was verified using the comprehensive experimental results and the theoretical model based on the thermal conductivity prediction of particle-filled composites.A systematic study was conducted through numerical simulation to examine the impact of graphite particle size,volume fraction,and distribution style on the thermal conductivity of polytetrafluoroethylene (PTFE) modification composites.The correlated equation of the predicted thermal conductivity of carbon-fiber-reinforced PTFE-based modification composites was obtained.According to the correlated equation and the numerical simulation results,the correlated equation of the predicted thermal conductivity of PTFE-based modification composites with graphite and carbon fiber was obtained by fitting,which leads to a prediction that has less than 10% deviation from the real value.
PTFE composite thermal conductivity
Jin Zunlong Chen Xiaotang Liu Minshan Li Zhao
Key Laboratory of Process Heat Transfer and Energy Saving of Henan Province, Zhengzhou University,Zhengzhou 450002, China
国际会议
上海
英文
221-221
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）