Journal
CARBON
Volume 184, Issue -, Pages 409-417Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2021.08.053
Keywords
Inverse vulcanised polysulfide; Interfacial modifier; Rubber composites; Dispersion; Hysteresis loss
Funding
- National Science Fund for Distinguished Young Scholars [51825303]
- National Natural Science Foundation of China [51790503, 52073097]
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In this study, the use of an inverse vulcanised polysulfide (SP) significantly decreased hysteresis loss in NR/CB composites by enhancing interfacial adhesion and improving CB dispersion. The modified composites showed reduced rolling resistance and heat build-up, demonstrating advantages in tire application such as reducing fuel consumption and extending service life.
We reported the use of an inverse vulcanised polysulfide (SP) as an intelligent interfacial modifier in the NR/CB composites to remarkably decrease the hysteresis loss by enhancing the interfacial adhesion and improving CB dispersion. Specifically, SP synthesized by the bulk copolymerization of sulfur and styrene was grafted onto CB surface by trapping the sulfur radicals generated from SP, and the grafted poly-sulfides can participate in the crosslinking reaction with NR, which greatly improves CB dispersion and strengthens interfacial adhesion in the composites. As a consequence, the rolling resistance and heat build-up of the modified composites are remarkably decreased, showing great advantages in tire application in term of reducing fuel consumption and extending service life. (c) 2021 Elsevier Ltd. All rights reserved.
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