湿法混炼氧化石墨烯/天然橡胶复合材料的性能研究

Properties of Graphene Oxide/NR Composites Prepared by Wet Mixing Method

采用湿法混炼工艺制备氧化石墨烯(GO)/天然橡胶(NR)复合材料,并对其性能进行研究。结果表明:加入GO的胶料门尼粘度增大,t_(10)和t_(90)延长,硫化胶的物理性能、导电性能和导热性能提高,储能模量增大,损耗因子减小;随着GO用量的增大,胶料的t_(10)和t_(90)先延长后缩短,硫化胶的定伸应力增大,拉伸强度和撕裂强度先增大后减小,导电性能变化不大,导热性能总体提高;当GO用量为2份时,复合材料的综合性能最佳,GO在复合材料中的分散性最好。

The graphene oxide（GO）/NR composites were prepared by wet mixing method,and their properties were investigated. The results showed that,with the addition of GO,the Mooney viscosity of the compound increased,t10 and t90 were extended,the physical properties,electrical conductivity and thermal conductivity of the vulcanizate were improved,the storage modulus increased and loss factor decreased. As the addition level of GO increased,the t10 and t90 of the compound were first extended and then shortened,the modulus of the vulcanizate increased,tensile strength and tear strength first increased and then decreased,electrical conductivity changed little,and thermal conductivity improved. When the addition level of GO was 2 phr,the properties of the composite and the dispersion of GO in NR matrix were the best.