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2 PTFE及其复合材料的平均线膨胀系数及玻璃化温度
Table 2 Average values of coefficient of linear expansion and glass transition temperature of PTFE and PTFE-mullite composites
Sample Coefficient of linear
expansion (×10-4-1)(30-160℃)
Glass transition
temperature/℃
PTFE 1.31 307.4
PTFE+10% Mul 1.24 311.3
PTFE+20% Mul 1.31 309.0
PTFE+30% Mul 1.26 310.6
PTFE+40% Mul 1.31 310.0
PTFE+50% Mul 1.10 311.0