PMID- 31071523 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20191120 IS - 1095-7103 (Electronic) IS - 0021-9797 (Linking) VI - 550 DP - 2019 Aug 15 TI - Immobilization of rubber additive on graphene for high-performance rubber composites. PG - 190-198 LID - S0021-9797(19)30544-2 [pii] LID - 10.1016/j.jcis.2019.05.006 [doi] AB - It is still a challenge to achieve simultaneous improvements in aging resistance, mechanical strength, thermal conductivity and dielectric constant of rubber composites via incorporation of graphene obtained by conventional methods. Herein, an effective and green method was proposed to simultaneously reduce and functionalize graphene oxide (GO) with 2-mercaptobenzimidazole (antioxidant MB) via a one-pot method. GO was successfully reduced by MB which was also chemically grafted on the reduced GO (G-MB). G-MB sheets were uniformly dispersed in rubber with strong interfacial interaction, and graphene-graphene conductive paths were formed through intermolecular H-bonding between the grafted antioxidant molecules. Consequently, rubber composites with G-MB showed higher thermal conductivity, mechanical strength and dielectric constant than rubber composites with hydrazine hydrate reduced GO (rGO). Moreover, the thermo-oxidative aging resistance of rubber composites with G-MB was also superior to that of rubber composites with rGO because of the elimination of blooming effect of the grafted MB molecules. Thus, this work may open a new way for the eco-friendly functionalization and reduction of GO and may boost the development of high-performance, functional graphene-elastomer composites. CI - Copyright (c) 2019 Elsevier Inc. All rights reserved. FAU - Zhong, Bangchao AU - Zhong B AD - College of Chemistry, Chongqing Normal University, Chongqing 401331, China; Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address: pcbczhong@163.com. FAU - Luo, Yongyue AU - Luo Y AD - Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences (CATAS), Zhanjiang 524001, China. FAU - Chen, Wanjuan AU - Chen W AD - College of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China. FAU - Luo, Yuanfang AU - Luo Y AD - Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China. FAU - Hu, Dechao AU - Hu D AD - Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China. FAU - Dong, Huanhuan AU - Dong H AD - Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China. FAU - Jia, Zhixin AU - Jia Z AD - Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address: 18620901980m@sina.cn. FAU - Jia, Demin AU - Jia D AD - Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China. LA - eng PT - Journal Article DEP - 20190502 PL - United States TA - J Colloid Interface Sci JT - Journal of colloid and interface science JID - 0043125 OTO - NOTNLM OT - Aging resistance OT - Graphene OT - Interfacial enhancement OT - Rubber nanocomposites OT - Thermal conductivity EDAT- 2019/05/10 06:00 MHDA- 2019/05/10 06:01 CRDT- 2019/05/10 06:00 PHST- 2019/03/14 00:00 [received] PHST- 2019/04/28 00:00 [revised] PHST- 2019/05/01 00:00 [accepted] PHST- 2019/05/10 06:00 [pubmed] PHST- 2019/05/10 06:01 [medline] PHST- 2019/05/10 06:00 [entrez] AID - S0021-9797(19)30544-2 [pii] AID - 10.1016/j.jcis.2019.05.006 [doi] PST - ppublish SO - J Colloid Interface Sci. 2019 Aug 15;550:190-198. doi: 10.1016/j.jcis.2019.05.006. Epub 2019 May 2.