| Study on structure and properties of HNBR/EPDM blends |
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| DOI： |
| Key Words: HNBR；EPDM；blend；compatibility |
| Author Name | Affiliation | | LEI Chang-chun | Beijing University of Chemical Technology | | ZHANG Li-qun | Beijing University of Chemical Technology | | LI Hong-fu | Beijing University of Chemical Technology | | WU You-ping | Beijing University of Chemical Technology | | FENG Yu-xing | Beijing University of Chemical Technology |
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| Abstract: |
| The influence of the blending ratio on the properties of HNBR/EPDM blend was investigated by using peroxide DCP and sulfur donor DTDM as crosslinking agents respectively，the compatibility of two polymers was analysed by means of DSC and TEM,and their covulcanization was also discussed.The results showed that the elongation retentions after thermal-oxidative aging of the blends cured with two different curing systems respectively were higher than 60%；the modulus，tensile strength and tear strength of blend improved，but the abrasion resistance decreased as the HNBR proportion in the blend increased；and HNBR/EPDM was an uncompatible system，but the curing rates of two polymers were closer on the rheometer curve，therefore the two polymers in the blend could well be covulcanized. |
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