Interfacial mechano-chemical grafting in styrene-butadiene rubber/halloysite nanotubes composites |
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| Affiliation: | 1. Department of Management and Engineering, University of Padova, Stradella S. Nicola 3, 36100, Vicenza, Italy;2. Robert Bosch GmbH, Corporate Sector Research and Advance Engineering, Plastics Engineering, Robert-Bosch-Campus 1, 71272, Renningen, Germany;1. Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic;2. Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, nám. TGM 5555, 760 01 Zlin, Czech Republic;1. Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;2. Department of Chemical Engineering, University of Waterloo, ON N2L3G1, Canada;1. Key Lab of GD High Property and Functional Macromolecular Materials, Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, PR China;2. Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Department of Polymeric Material and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, PR China |
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| Abstract: | SBR/unmodified HNT composites were prepared by open-mill mixing and vulcanization. The results showed that HNT could decrease the scorch and optimum cure time, and play a significant role in reinforcing SBR vulcanizates. Mechano-chemical grafting at the interface between HNT and SBR was investigated by using infrared spectroscopy, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), solid-state 13C NMR spectra and bonded rubber content, etc. The results showed the shearing force during the mixing process can impel the grafting reaction of SBR onto the surfaces of HNT, which leads to interfacial chemical bonding between phenyl’s α-H of SBR and the surface groups of HNT with Si-OH or Al-OH. Thus, the mechanical properties of the composites were significantly enhanced. |
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| Keywords: | Styrene-butadiene rubber Halloysite nanotubes Mechano-chemical grafting Interface |
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