| Study on Practical Formulation of Naphthenic Oil-extended SSBR |
| Received:June 09, 2020 Revised:June 09, 2020 |
| DOI：10.12136/j.issn.1000-890X.2021.05.0323 |
| Key Words: SBR；naphthenic oil；oil-extended rubber；reinforcing system；raw rubber blending；curing system；dynamic mechanical property |
| Author Name | Affiliation | E-mail | | Hu Baoli* | Yanshan Branch，SINOPEC Beijing Research Institute of Chemical Industry | hubl.bjhy@sinopec.com | | Lv Wanshu | Yanshan Branch，SINOPEC Beijing Research Institute of Chemical Industry | | | Wang Xue | Yanshan Branch，SINOPEC Beijing Research Institute of Chemical Industry | | | Xu Lin | Yanshan Branch，SINOPEC Beijing Research Institute of Chemical Industry | |
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| Abstract: |
| The effects of reinforcing system，raw rubber blending and curing system on the properties of solution polymerized styrene butadiene rubber（SSBR） filled with naphthenic oil were studied.The results showed that，for the pure carbon black reinforcing system，the comprehensive properties of the compound with 75 phr carbon black were better，and the comprehensive properties of the compound with two kinds of carbon black blending system were improved，but the wear resistance was slightly poor.For the carbon black/silica blending reinforcing system，the comprehensive properties of the compound with 20 phr silica were excellent.With the increased of silica amount，the dispersion of fillers and the properties of compound decreased.When SSBR was blended with 20 phr cis-1，4-polybutadiene rubber，the compression heat build-up and rolling resistance of the compound were decreased，the wear resistance was improved，the aging resistance was excellent and the other properties met the use requirements.In the curing system，the amount of sulfur had the greatest influence on the properties of SSBR compound，and the suitable amount of sulfur was 1.4～1.6 phr. |
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