| 橡胶型乙烯-醋酸乙烯共聚物配方及老化性能研究 |
| Study on Formulation and Aging Properties of Rubber-like EVM |
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| DOI： |
| 中文关键词: 橡胶型乙烯-醋酸乙烯共聚物 配合 热空气老化性能 |
| 英文关键词: rubber-like EVM formulation hot air aging property |
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| 中文摘要: |
| 研究了橡胶型乙烯-醋酸乙烯共聚物（EVM）的配方及热氧老化性能。试验结果表明：EVM具有优异的热空气老化性能，经175℃×72h老化后仍有很高的拉伸强度和扯断伸长率保持率；需采用过氧化物进行硫化，同时并用适量的三烯丙基异氰脲酸酯可以显著改善EVM的压缩永久变形性能；它是一种典型非自补强性橡胶，需加入适量的补强填充剂；聚酯增塑剂可以在一定程度上降低EVM的硬度，而对老化性能影响不大；防老剂RD可赋予胶料更优良的热空气老化性能和耐水解性能。 |
| 英文摘要: |
| The formulation and the thermal and oxidative aging properties of rubber-like EVM were investigated.The test results showed that EVM featured excellent hot air aging property and had very high retentions of the tensile strength and the elongation at break；the compression set of EVM could be significantly improved when cured with DCP and appropriate TAIC；it was a typical non-self-reinforcing rubber and required appropriate reinforcing filler to be added；the polyester plasticizer could lower the hardness of EVM to a certain degree without affecting the aging properties significantly；antioxidant RD could provide EVM compound better hot air aging property and hydrolytic stability. |
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