丁苯橡胶接枝马来酸酐对白炭黑/丁苯橡胶复合材料性能的影响

研究丁苯橡胶接枝马来酸酐（SBR-g-MAH）用量对白炭黑/丁苯橡胶（SBR）复合材料性能的影响。结果表明：随着SBR-g-MAH用量的增大，胶料的t₁₀缩短，t₉₀延长，M_L和M_H先增大后减小；复合材料的邵尔A型硬度、300%定伸应力和拉断伸长率呈增大趋势，拉伸强度和撕裂强度先增大后减小；白炭黑在SBR胶料中的分散性及界面结合明显改善；当SBR/SBR-g-MAH并用比为50/50时，复合材料的综合性能最佳。;The effect of the addition level of SBR-g-MAH on the properties of silica/SBR compo site was investigated.The results showed that， as the addition level of SBR-g-MAH increased， t₁₀ of the compound was reduced，t₉₀ was extended，M_L andM_H increased at first and then decreased.The Shore A hardness，the modulus at 300% elongation and the elongation at break of composite tended to increase，and the tensile strength and tear strength increased at first and then decreased.The dispersion of silica in SBR and their interfacial bonding were improved significantly.When the blend ratio of SBR/SBR-g-MAH was 50/50，the comprehensive properties of composite were the best