Document Type

Article

Disciplines

2. ENGINEERING AND TECHNOLOGY, Chemical engineering (plants, products)

Publication Details

https://www.sciencedirect.com/science/article/pii/S1385894722045922

https://doi.org/10.1016/j.cej.2022.139113

Abstract

The hazard to the ecosystem caused by rubber microparticles generated from tire abrasion has been a constant concern. Therefore, to protect this ecosystem, the development of a tire tread with high abrasion resistance is especially significant. Herein, γ-aminopropyltriethoxysilane (APTES) was used to modify graphene oxide (GO) and silica (SiO2) to obtain GO and SiO2 with positive charges (NG and NS). Furthermore, NG and NS were electrostatically self-assembled by using maleic anhydride (MAH) hydrolysis, thereby obtaining composite particles (NG-NS) with “bridged structures”. Also, the NG-NS/styrene butadiene rubber (SBR) compounds possessing fine dispersion of NG-NS were prepared by the aqueous compounding method. During the crosslinking process, the vinyl groups in NG-NS reacted with the vinyl groups of the SBR molecule chains, thus forming strong chemical interfacial interactions between the NG-NS and rubber macromolecules. Compared with an SiO2/SBR composite, the 300 % modulus, tensile strength, abrasion resistance of the NG-NS/SBR composite were improved by 125 %, 122 %, 83.3 %, respectively. Compared with a GO/SiO2/SBR composite, heat build-up in the NG-NS/ SBR was decreased by 8.2 ◦C.

DOI

https://doi.org/10.1016/j.cej.2022.139113

Funder

This work was supported by the National Key R&D Program of China, China (2017YFE0126800) and the National Natural Science Foundation of China, China (51790504).

Creative Commons License

Creative Commons Attribution-Share Alike 4.0 International License
This work is licensed under a Creative Commons Attribution-Share Alike 4.0 International License.

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