| Effect of Ingredient Dosages on Dynamic Mechanical Properties of IIR |
| Received:August 31, 2021 Revised:August 31, 2021 |
| DOI：10.12136/j.issn.1000-890X.2022.11.0841 |
| Key Words: IIR；carbon black；naphthenic oil；tackifying resin；dynamic mechanical property |
| Author Name | Affiliation | E-mail | | SUN Pan* | SINOPEC Beijing Research Institute of Chemical Industry Yanshan Branch,National Engineering Research Center for Synthesis of Novel Rubber and Plastic Materials | sunpan101@126.com | | LI Jing | SINOPEC Beijing Research Institute of Chemical Industry Yanshan Branch,National Engineering Research Center for Synthesis of Novel Rubber and Plastic Materials | | | XIE Ximing | SINOPEC Beijing Research Institute of Chemical Industry Yanshan Branch,National Engineering Research Center for Synthesis of Novel Rubber and Plastic Materials | | | LIU Ping | SINOPEC Beijing Research Institute of Chemical Industry Yanshan Branch,National Engineering Research Center for Synthesis of Novel Rubber and Plastic Materials | |
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| Abstract: |
| The effects of the carbon black N774，naphthenic oil and tackifying resin dosages on the
dynamic mechanical properties of butyl rubber （IIR） compound with sulfur curing system were studied.
The results showed that with the increase of carbon black N774 dosage，the shear storage modulus（G′ ）
and loss factor（tanδ） of the IIR compound increased，the loss peak value（tanδmax） of the vulcanizate
decreased，and the temperature of the tanδmax（Tp） moved towards the high temperature direction. With the
increase of naphthenic oil dosage，the G′ of the IIR compound decreased，theδ increased，the tanδmax of
the vulcanizate increased，and the Tp moved towards the low temperature direction. With the increase of
tackifying resin dosage，theG′ of the IIR compound decreased，the tanδ increased，the tanδ-temperature curve
of the vulcanizate was bimodal，and the Tp moved towards the high temperature direction |
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