| Study on EPDM/CR Blend |
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| DOI： |
| Key Words: EPDM；CR；blending technology；acid resistance；radiation resistance；compatibility |
| Author Name | Affiliation | | Zhang Xiangfu | Shanghai Jiaotong University | | Zhang Yinxi | Shanghai Jiaotong University | | He Yunxiang | Shanghai Jiaotong University | | Zhu Yutang | Shanghai Jiaotong University |
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| Abstract: |
| The effects of blending ratio，curing system，HAF content and mixing technology on the properties of EPDM/CR blends were studied.The physical properties，hot nitric acid resistance，hot air aging property，radiation resistance and compatibili ty of the blends were investigated.The test results showed that the physical properties of the blend vulcanizate surpassed the additive physical properties of two rubber vulcanizates when EPDM was mixed with all black and then blended with CR；the good physical properties could be obtained only when EPDM in the blend was cured with sulfur.The study on vulcanization kinetics revealed that the dependence of vulcanization rate of CR on the temperarure was less than that of EPDM.The results from DSC and DVA analysis showed that the blend possessed two distinguished glass t ransit ion temperatures and was a thermo-mechanically incompatible system .The developed EPDM/CR blend featured good aging property，hot nitric acid resistance，radiation resistance and adhesion. |
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