中文摘要：

应用差示扫描量热（DSC）技术研究了超声电机驱动用的TGDDM/MTHPA环氧摩擦材料的固化动力学.对添加了聚四氟乙烯（PTFE）、碳纤维、石墨、MoS2等填料的环氧摩擦材料固化体系在不同升温速率下得到的DSC曲线进行分析,运用Kissinger方程和Crane方程确定了体系反应级数和表观活化能,并将峰温Tp和结束温度Te外推至升温速率为零,得到理论固化温度Tcure和固化后处理温度Ttreat.结果表明反应级数与二甲基苄胺（DMBA）用量无关,约为0.90;表观活化能随着DMBA量的增加先降后升,用量为1.0%时达到最小;Tcure、Ttreat分别为130℃、153.8℃.按照上述优化配方和固化工艺制备的环氧摩擦材料装配行波超声电机（TRUMΦ-60）机械性能良好,使用寿命可达8000h以上.

英文摘要：

Epoxy resin matrix composite for friction material of ultrasonic motor driving was prepared by tetraglycidyl-4,4＇-diaminodiphenylmethane （TGDDM）/methyl tetrahydrophthalic anhydride （MTHPA） filled with polytetrafluoroethylene（PTFE）,carbon fibre,graphite,MoS2 powder et al. The non-isothermal cure kinetic of this composite was studied by means of differential scanning calorimetry （DSC）. The apparent activation energy and kinetic order of curing reaction were evaluated by Kissinger equation and Crane equation,and theoretic gelling temperature,curing temperature and heat-treating temperature were obtained by linearly extrapolating the curves of peak temperature and end temperature of cure reaction vs. heating rate （Tp—β and Te—β）. The reaction order n was calculated to be about 0.90 independent of dimethyl benzyl amine（DMBA） dosage,and the apparent activation energy decreased firstly and then increased with the increase of the accelerant DMBA percentage and it showed a minimum in one percent DMBA dosage. The extrapolated curing temperature （Tcure） and heat treating temperature （Ttreat） are 130 ℃ and 153.8 ℃,respectively. The Mechanical properties of ultrasonic motor,TRUM Φ-60,equipped with this epoxy composite friction material performed very well with lifetime longer than 8 000 h.