BIIR/BR并用橡胶鞋底材料的制备及性能研究

Preparation and properties of BIIR/BR rubber sole material

采用了2种硫化体系(2,2'-二硫代二苯并噻唑/一硫化四甲基秋兰姆/硫磺,DM/TMTM/S和2,2'-二硫代二苯并噻唑/一硫化四甲基秋兰姆/N-叔丁基-2-苯/硫磺,DM/TMTM/NS/S)对溴化丁基橡胶/顺丁橡胶(BIIR/BR)进行了密炼和硫化成型加工,制备了2种BIIR/BR并用胶鞋底材料.考察了BIIR/BR配比对2种并用胶鞋底材料的硫化特性、加工性能、力学性能、耐磨性能和止滑性能的影响,同时对2种不同硫化体系并用胶鞋底材料的物性进行了对比.结果表明,DM/TMTM/S体系并用胶硫化速度和交联程度整体高于DM/TMTM/NS/S体系;DM/TMTM/NS/S体系并用胶拉伸强度、撕裂强度和断裂伸长率整体高于DM/TMTM/S体系,但硬度和耐磨性能低于后者.随着BR比例的增加,DM/TMTM/NS/S体系并用胶干滑性能的变化不大,但湿滑性能却明显下降.

Two sets blends of brombutyl rubber/1, 4-cis polybutadiene rubber(BIIR/BR) were prepared by banburying and vulcanization molding methods, using two sets vulcanization systems of 2,2’-dibenzothiazoledisulfde/tetramethyl thiuram monosulfide/sulphur(DM/TMTM/S)and 2,2’-dibenzothiazoledisulfde/tetramethyl thiuram monosulfide/N-tert-butylbenzothiazole-2-sulphenamide/sulphur(DM/TMTM/NS). The effects of the BIIR/BR ratios on curing properties,processability, mechanical properties, wear-resisting properties and slip resistance of the two sets BIIR/BR rubber sole materials were investigated. The physical properties of the BIIR/BR sole materials with two curing systems were compared. Results indicate that the curing rate and crosslink density of DM/TMTM/S system are higher than that of the system of DM/TMTM/NS/S. The tensile strength, tearing strength and elongation at break of DM/TMTM/NS/S are higher than that of the DM/TMTM/S system, while the hardness and wear-resisting properties are lower. The curing time of BIIR/BR is shorten, processability and wear-resisting properties are improved with the increasing of BR ratios, also the mechanical properties are affected slightly. While there is no signif icant effect on the dry-slip properties, and the wet-slip resistance performance is declined clearly.