| Property of SBR Filled with SBR Ground Rubber Desulfurized by Sphingomonas sp. |
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| DOI： |
| Key Words: Sphingomonas sp.；SBR ground rubber；desulfurizing；physical property；dynamic property |
| Author Name | Affiliation | | SHAO Jing-chun | Beijing University of Chemical Technology | | ZHAO Su-he | Beijing University of Chemical Technology | | LUO Jing-yuan | Beijing University of Chemical Technology | | WANG Ya-qin | Beijing University of Chemical Technology | | ZHOU Quan-sheng | Beijing University of Chemical Technology | | ZHANG Cui-ru | Beijing University of Chemical Technology |
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| Abstract: |
| SBR ground rubber was desulfurized using Sphingomonas sp.，and the properties of desulfurized SBR ground rubber filled SBR were investigated and compared to regular SBR ground rubber filled SBR.The results showed that，Sphingomonas sp. not only could break sulfur crosslinked bond，but also might partially rupture the carbon-carbon double bonds in rubber main chain.Compared with SBR ground rubber filled SBR compound，the torque and apparent crosslink density of desulfurized SBR ground rubber filled SBR decreased，tensile strength and elongation at break increased，Shore A hardness and tear strength kept at same levels，and Akron abrasion loss decreased.Desulfurized SBR ground rubber bound much stronger with SBR matrix，and the dynamic hysteresis loss was lower. |
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