| 氟橡胶/EPDM动态硫化共混物的研究 |
| Study on Dynamically Vulcanized Fluoro Rubber/EPDM Blends |
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| DOI： |
| 中文关键词: 氟橡胶 EPDM 动态硫化 共混物 |
| 英文关键词: fluoro rubber EPDM dynamic vulcanization blend |
| 基金项目: |
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| 中文摘要: |
| 研究了动态硫化工艺条件和共混比对氟橡胶(FKM)/EPDM共混物拉伸性能拉、热油老化性能和应力松弛性能的影响。结果表明：与直接静态硫化相比，动态硫化可避免两种硫化体系的相互影响；静态硫化共混物拉伸强度只有2 MPa，而动态硫化共混物可达10 MPa以上；工艺条件对动态硫化共混物性能的影响不大；随共混物中EPDM用量的增大，共混物的热空气老化和热油老化性能均有所下降。 |
| 英文摘要: |
| The influence of the dynamic vulcanizing conditions and blending ratio on the tensile strength，hot oil resistance and compression stress relaxation of the fluoro rubber/EPDM blends was investigated.The results showed that the interference of two curing systems in the static vulcanization of fluoro rubber/EPDM blend was eliminated by using dynamic vulcanization；the tensile strength of the statically vulcanized blend was only about 2 MPa，while that of the dynamically vulcanized blend could reach over 10 MPa；the vulcanizing conditions had little influence on the physical properties of blends；and the hot air and hot oil aging properties of blends decreased as the EPDM proportion in the blends increased. |
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