| Activation of Crumb Rubber with RD-F Mechanical-Chemical Method |
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| DOI： |
| Key Words: crumb rubber activation；mechanical-chemical method；activator；crumb rubber |
| Author Name | Affiliation | | Zhou Wen | Beijing University of Chemical Technology | | Zhao Suhe | Beijing University of Chemical Technology | | Bai Guochun | Beijing University of Chemical Technology | | Zhou Yanhao | Beijing University of Chemical Technology | | Zhang Yanhui | Beijing University of Chemical Technology | | Liu Qiuhua | Beijing University of Chemical Technology |
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| Abstract: |
| The activator is uniformly applied to the surface of crumb rubber with a high speed agitator，the strong shearing and fine grinding effect is applied to the crumb rubber by an open mill to facilitate the bonding between activator and crumb rubber.The activator is composed of curing agent，peptizer，antioxidant and phenolic resin.The curing agent is used to increase the crosslink density at the interface between crumb rubber and rubber matrix；the antioxidant is used to increase the dynamic properties of the compound；the phenolic resin is used to increase the “adhesion” at the interface between crumb rubber and rubber matrix.RD-F activator system include antioxidant RD l，phenolic resin l，420# oil l.5，accelerator H 0.4，sulfur 0.5，accelerator CZ 0.5，vinyl tar 8.The wear resistance of tire tread can be significantly improved by using the crumb rubber activated with RD-F activator system. |
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