莫来石填充的聚四氟乙烯复合材料及其摩擦学性能*

李翠, 孙桃, 石国军, 袁月, 张辰恺

Polytetrafluoroethylene Composites Filled with Mullite and their Tribological Performance

LI Cui, SUN Tao, SHI Guojun, YUAN Yue, ZHANG Chenkai

表1 PTFE及其复合材料的量热性质

Table 1 Thermal properties of PTFE and PTFE-mullite composites

Sample Glass transition temperature /℃ Melting point /℃ Melting heat /(J/g) Degree of crystallinity/% PTFE 322.8 327.4 20.73 30.04 PTFE+10%Mul 322.1 327.6 23.26 37.08 PTFE+20%Mul 323.0 327.9 17.31 30.10 PTFE+30%Mul 323.2 327.8 16.95 31.93 PTFE+40%Mul 322.4 327.3 15.34 31.12 PTFE+50%Mul 322.4 327.3 13.73 29.85