| 含促进剂M与DM胶料的硫化特性 |
| Vulcanization Behaviour of M or DM Containing Compounds |
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| DOI： |
| 中文关键词: 硫化 促进剂 硫化活化能 |
| 英文关键词: cure accelerator activation energy |
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| 中文摘要: |
| 研究了促进剂M与DM在NR中的硫化特性，并深入探讨了它们对胶料加工性能及物性影响的差异。试验结果表明，促进剂M的焦烧速度、硫化速度比DM快，硫化平坦性比DM差，在较低温度下促进剂M对NR的增塑效果高于DM，但随着温度的升高，DM的增塑效果可超过M。促进剂M的活化能比DM低得多，说明其硫化速度对温度的依赖性小于DM。此外，含促进剂M胶料的拉伸强度、定伸应力、抗撕裂性、弹性等均略低于含DM的胶料，而耐热老化性能却比DM胶料好。 |
| 英文摘要: |
| The vulcanization behaviour of M or DM containing NR compounds was studied and their effects on the processibility and physical properties were in detail respectively investigated.The results showed that the accelerator M gave more rapid scorch rate and cure rate，but worse cure plateau than the accelerator DM.The accelerator M gave larger plastication to NR than DM at lower temperature，but DM would give larger plastication than M as the temperature increased.The fact that the activation energy of M was much lower than that of DM implied less dependence of its cure rate on temperature than that of DM.In addition，the tensile strength，modulus，tear resistance and rebound resilience of M containing compound were somewhat lower than those of DM containing compound，but the former gave better heat-aging resistance than the latter. |
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