Reinforcement of hydrogenated carboxylated nitrile–butadiene rubber with exfoliated graphene oxide

Bai, Xin, Wan, Chaoying, Zhang, Yong and Zhai, Yinghao (2011) Reinforcement of hydrogenated carboxylated nitrile–butadiene rubber with exfoliated graphene oxide. Carbon, 49 (5). pp. 1608-1613. ISSN 0008-6223

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Graphene oxide (GO)/hydrogenated carboxylated nitrile–butadiene rubber (HXNBR) composites were prepared by a solution-blending method. The GO monolayers with 0.9 nm in thickness, more than 2.5 μm in width and 3 μm in length were exfoliated from natural flake graphite by a modified Hummers method and could be further dispersed homogeneously in HXNBR matrix even for the GO contents up to 1.3 vol.%. The addition of 0.44 vol.% of GO nanosheets enhanced the tensile strength and modulus at 200% elongation of HXNBR by more than 50% and 100%. This is believed to be due to strong interfacial interactions between the oxygen-containing functional groups on the surfaces of GO nanosheets and the carboxyl groups in HXNBR. Moreover, this general observation is further supported by the increase of the glass transition temperature of HXNBR from −23.2 to −21.6 °C, at a GO content of 1.3 vol.%. The results indicated that GO efficiently reinforced HXNBR due to the good dispersion and strong interfacial interactions.

Item Type: Article
Subjects: H700 Production and Manufacturing Engineering
H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Ellen Cole
Date Deposited: 12 Dec 2011 13:40
Last Modified: 24 Oct 2017 08:53

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