| Study on Peroxide Curing Systerm of HNBR Compound |
| Received:March 31, 2021 Revised:March 31, 2021 |
| DOI：10.12136/j.issn.1000-890X.2022.02.0115 |
| Key Words: HNBR；peroxide curing system；compression set；heat-oxygen aging resistance；oil resistance |
| Author Name | Affiliation | E-mail | | WANG Leilei* | SINOPEC Beijing Research Institute of Chemical Industry Yanshan Branch/National Engineering Research Center for Synthesis of Novel Rubber and Plastic Materials | wangll.bjhy@sinopec.com |
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| Abstract: |
| The effects of the amounts of curing agent DCP and cocrosslinking agent TAC on the
properties of hydrogenated nitrile rubber（HNBR） compound were studied. The results showed that when
the amount of cocrosslinking agent TAC was 3 phr，with the increase of the amount of curing agent DCP，
the scorch time and optimal curing time of HNBR compound were shortened，the physical properties
of the vulcanizate were improved，the compression set was significantly reduced，and the heat-oxygen
aging resistance was improved. When the amount of curing agent DCP was 4 phr，with the increase of the
amount of cocrosslinking agent TAC，the Mooney viscosity of HNBR compound decreased，the modulus
of the vulcanizate increased，the compression set decreased，and the heat-oxygen aging resistance changed
little. The amounts of curing agent DCP and cocrosslinking agent TAC had a certain effect on the physical
properties of HNBR vulcanizate after oil immersion，but had little effect on the volume expansion rate. |
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