| Study on Reclaiming of Ground Radial Tire Rubber |
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| DOI： |
| Key Words: ground radial tire rubber；reclaiming agent；reclaimed rubber；NR compound |
| Author Name | Affiliation | | CHEN Dai-mei | China University of Geosciences（Beijing） | | ZHU Qian | China University of Geosciences（Beijing） | | LIU Juan | China University of Geosciences（Beijing） | | WU Li-mei | China University of Geosciences（Beijing） | | CHEN Jian | China University of Geosciences（Beijing） |
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| Abstract: |
| The ground radial tire rubber was reclaimed by self-prepared reclaiming agent，and the effects of the particle size of ground radial tire rubber，additon level of reclaiming agent and softener on the physical properties of reclaimed rubber were investigated.The results showed that，with increase of the particle size of ground radial tire rubber，the tensile strength and elongation at break of reclaimed rubber decreased，while the Shore A hardness changed a little.With the addition level of reclaimed agent increasing，the Mooney viscosity of reclaimed rubber decreased，and the tensile strength and elongation at break firstly increased and then decreased.With the addition level of softener increasing，the tensile strength and elongation at break of reclaimed rubber firstly increased and then decreased.The optimized reclaiming effect could be obtained when the particle size of ground radial tire rubber was 0.45 mm，and addition levels of reclaimed rubber，reclaiming agent and softener were 100，7 and 3 phr respectively.Theaddition level of reclaimed rubber had significant effect on the physical properties of NR compound. |
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