| Modification of Compatibility between NBR and EPDM by CSM |
| Received:November 02, 2021 Revised:November 02, 2021 |
| DOI：10.12136/j.issn.1000-890X.2023.03.0189 |
| Key Words: CSM；NBR；EPDM；compatibility；physical property；dynamic mechanical property；heat aging resistance |
| Author Name | Affiliation | E-mail | | LIU Jinpeng* | CRRC Qingdao Sifang Rolling Stock Research Institute Co.，Ltd | ljp0103840@126.com | | WU Tianhao | CRRC Qingdao Sifang Rolling Stock Research Institute Co.，Ltd | | | SONG Chuanyun | CRRC Qingdao Sifang Rolling Stock Research Institute Co.，Ltd | | | ZHANG Zhuo | Qingdao University of Science and Technology | | | XIAO Jianbin | Qingdao University of Science and Technology | |
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| Abstract: |
| In this study，chlorosulfonated polyethylene rubber（CSM），chlorinated polyethylene rubber，
and ethylene-vinyl acetate copolymer were applied to improve the compatibility between nitrile rubber（NBR）
and ethylene-propylene-diene rubber（EPDM）. The modification effects were investigated and the effects
of curing systems on the properties of the NBR/EPDM/CSM blends were studied. The results showed that
the addition of CSM could improve the compatibility between NBR and EPDM and improve the physical
properties of the NBR/EPDM blends. With the increase of accelerator DPTT dosage，the physical properties
of NBR/EPDM/CSM blends were improved. The physical properties of the NBR/EPDM/CSM blends with
sulfur and peroxide combined curing system were the best，and the heat aging resistance of the NBR/EPDM/
CSM blends only with peroxide curing system was the best. |
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