| Influence of Liquid Phase Oil-Extending on Properties of Functionalized SSBR Compounds |
| Received:August 29, 2024 Revised:October 11, 2024 |
| DOI：10.12136/j.issn.1000-890X.2026.08.0587 |
| Key Words: functionalized SSBR；liquid phase oil-extension；aromatic oil；naphthenic oil；wear resistance；dynamic mechanical property |
| Author Name | Affiliation | E-mail | | CAI Haodong | Beijing University of Chemical Technology | chd3169@163.com | | YAO Hong* | Beijing University of Chemical Technology | 1997500035@buct.edu.cn | | SHI Dengfeng | Beijing University of Chemical Technology | | | WANG Yiqing | Beijing University of Chemical Technology | |
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| Abstract: |
| The influence of liquid phase oil-extension（with the simultaneous incorporation of reinforcing filler silica） on the properties of functionalized solution-polymerized styrene-butadiene rubber（SSBR） compounds was investigated.The results showed that compared to unextended functionalized SSBR（hereinafter referred to as SSBR） compound and vulcanizate，the Mooney viscosities of oil-extended（aromatic oil-extended and naphthenic oil-extended） SSBR compounds significantly decreased，and the processabilities were significantly improved.The Payne effects of oil-extended SSBR compounds and vulcanizates were weakened，indicating improved silica dispersion.The Shore A hardnesses of oil-extended SSBR vulcanizates decreased，tensile strengths changed little，tear strengths increased，compression fatigue temperature rise was reduced，and wear resistance was improved.Compared to aromatic oil-extended SSBR compound and vulcanizate，the naphthenic oil-extended compound exhibited a reduced Mooney viscosity，the vulcanizate displayed a increased 300% modulus，reduced compression fatigue temperature rise，improved wear resistance，10% decrease in loss factor at 60 ℃，and reduced rolling resistance. |
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