将O,O'-二辛基二硫代磷酸镨(PrDODP)用作天然橡胶(NR)硫黄硫化的促进剂.结果显示,PrDODP对NR硫化有显著促进效果;硫化动力学研究表明,含PrDODP的NR硫化反应活化能E为87.2 kJ/mol;PrDODP用量为3.36 (质量份)的硫化胶100%定伸强度、300%定伸强度、拉伸强度和撕裂强度等力学性能最高,而扯断伸长率最小.
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