氧化锌硫化溴化丁基橡胶的性能研究

试验研究硫化剂氧化锌和硬脂酸用量对溴化丁基橡胶（BIIR）性能的影响。结果表明：当硬脂酸用量为1份时，随着氧化锌用量的增大，BIIR胶料的门尼粘度总体增大，硫化特性、交联密度和物理性能变化不大；当氧化锌用量为1份时，随着硬脂酸用量的增大，BIIR胶料的门尼粘度总体减小，硫化时间缩短，硫化胶的交联密度先增大后减小，物理性能呈下降趋势。;The effects of the addition level of curing agent zinc oxide and stearic acid on the properties of BIIR were investigated.The results showed that，when the addition level of stearic acid was 1 phr，as the addition level of zinc oxide increased，the Mooney viscosity of BIIR compound generally increased，while the curing behavior，crosslink density and physical properties changed little.When the addition level of zinc oxide was 1 phr，as the addition level of stearic acid increased，the Mooney visco-sity of BIIR compound generally decreased，the curing time shortened，the crosslink density of the vulcanizates increased at first and then decreased，and the physical properties tended to decrease