| Properties of Thiobacillus Ferrooxidans Desulfurized Ground Tire Rubber/SBR Blends |
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| DOI： |
| Key Words: ground tire rubber；thiobacillus ferrooxidans；microbial desulfurization；SBR；crosslink density；physical property |
| Author Name | Affiliation | | LI Yuan-hu | Beijing University of Chemical Technology | | ZHAO Su-he | Beijing University of Chemical Technology | | JIANG Guang-ming | Beijing University of Chemical Technology | | YU Shu | Beijing University of Chemical Technology | | WANG Ya-qin | Beijing University of Chemical Technology | | YU Wang-yang | Beijing University of Chemical Technology |
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| Abstract: |
| Desulfurized ground tire rubber（DGTR） was produced by thiobacillus ferrooxidans de-sulfurization and blended with SBR，and the properties of DGTR/SBR composites were investigated.The results showed that，in the desulfurization regeneration of ground tire rubber（GTR），combined sulfur on the surface of GTR was oxidized by thiobacillus ferrooxidans，and the sol fraction of DGTR was increased.Compared with GTR/SBR blend，the DGTR/SBR blend possessed lower crosslink density and significantly better physical properties.DMA test results indicated that the molecular chain friction of DGTR/SBR blend was decreased and the glass transition temperature was reduced.It was also found by SEM that，compared with GTR/SBR，the interfacial cohesion between DGTR and SBR was better. |
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