BR/炭黑/OMMT纳米复合材料的制备与性能研究

采用溶液插层法与两辊混炼法制备BR/炭黑/有机蒙脱土(OMMT)纳米复合材料，并对其微观结构和性能进行研究。结果表明，BR/炭黑/OMMT复合材料为插层型纳米复合材料；采用OMMT等量替代炭黑可明显降低胶料的门尼粘度，改善加工性能，提高胶料的硫化速度；OMMT用量不大于4份时可显著增大复合材料的拉伸强度、拉断伸长率和撕裂强度。;The BR/carbon black/organomontmorillonite(OMMT) nano-composite was prepared by solution intercalating and two-roll mixing methods，and its micro-structure and properties were investigated.The results showed that the BR/carbon black/OMMT composite was an intercalated nano-composite.By using OMMT to replace the equal amount of carbon black，the Mooney viscosity was decreased，the processability and the vulcanization rate were improved；in addition，the tensile strength，tear strength and elongation at break were significantly increased when the addition level of OMMT was within 4 phr