Preparation of TiO_2/Natural Rubber Composite Material and Study on Its Thermal Effect Dynamics

The TiO2/natural rubber nano-composite material was prepared by latex blending method.The results of DMA analysis showed that the glass transition temperature and activation energy of TiO2/natural rubber composite material were all higher than those of pure natural rubber.According to the dynamic model of thermal decomposition,the decomposition activation energy of blank sample(vulcanized rubber)and the samples which contained TiO2 with 0.1%,0.5%,1.0%,2.0% were 229.699,231.085,201.727,219.107,208.249 kJ/mol resp.,and their pre exponential factor of dynamic model were 5.07×1017,8.46×1017,2.94×1015,8.03×1016,1.04×1016/s resp.