A new approach to construct three dimensional segregated graphene structures in rubber composites for enhanced conductive, mechanical and barrier properties. Issue 12 (9th March 2016)

• Record Type: Journal Article
• Authors: Lin, Yong; Liu, Shuqi; Liu, Lan
• Is Part Of: Journal of materials chemistry. Volume 4:Issue 12(2016)
• Page Start: 2353
• Page End: 2358
• Publication Date: 2016-03-09
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c5tc04376j
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : A novel pre-construction method was reported for the first time to fabricate conductive rubber composites with a conductive 3D-graphene segregated network. Abstract : Styrene butadiene rubber/graphene (SBR3GE-DH) composites with a segregated graphene network, synchronously having high electrical conductivity, mechanical strength and gas barrier properties, were fabricated for the first time using a pre-construction strategy combined with static hot pressing. A "three dimensional graphene (3D-GE) network" with percolation conductive paths was efficiently constructed with an extremely low percolation threshold of 0.55 vol%. Remarkably, a conductivity of 0.033 S m −1 at a 3D-GE content of 1.66 vol% was 8 orders of magnitude higher than that of the sheet-like GE-based composites (SBRGE) prepared by conventional latex compounding. All those outstanding properties were attributable to the well-constructed "3D-GE segregated networks" in the SBR matrix and the strong interfacial adhesion between 3D-GE and the SBR matrix resulting from the geometric confinement of 3D-GE networks. Such performances make SBR3GE-DH composites very competitive for potential applications in high conductive sealing gaskets in the aerospace industry, sealed packages, and gas transport and storage devices.