Zinc sorbate(ZDS)reinforced hydro-genated nitrile rubber was prepared using sorbic acid and zinc oxide as raw materials by in situ generation method,and the in situ reaction mechanism of sorbic acid and effect of zinc sorbate on physical and me-chanical properties of the hydrogenated nitrile rubber were investigated.The results showed that zinc sor-bate could be generated in situ during the vulcaniza-tion stage.With increase of addition of sorbic acid and zinc oxide,the crosslinking degree of vulcanizate gradually increased,and tensile strength showed a trend of first increasing and then decreasing.When the addition amount of sorbic acid and zinc oxide were 23 g and 10 g,respectively,the tensile strength reached maximum of 24.5 MPa.Pretreatment of the rubber compound could significantly improve its me-chanical properties,but the pretreatment time should not be too long,otherwise the mechanical properties would decrease.
关键词
氢化丁腈橡胶/原位生成/山梨酸锌/硫化特性/物理机械性能
Key words
hydrogenated nitrile rubber/in situ generation/zinc sorbate/curing characteristics/physical and mechanical property
维普
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