Synergistic toughening of composite fibres by self-alignment of reduced graphene oxide and carbon nanotubes.

Nature Communications
Min Kyoon ShinSeon Jeong Kim

Abstract

The extraordinary properties of graphene and carbon nanotubes motivate the development of methods for their use in producing continuous, strong, tough fibres. Previous work has shown that the toughness of the carbon nanotube-reinforced polymer fibres exceeds that of previously known materials. Here we show that further increased toughness results from combining carbon nanotubes and reduced graphene oxide flakes in solution-spun polymer fibres. The gravimetric toughness approaches 1,000 J g(-1), far exceeding spider dragline silk (165 J g(-1)) and Kevlar (78 J g(-1)). This toughness enhancement is consistent with the observed formation of an interconnected network of partially aligned reduced graphene oxide flakes and carbon nanotubes during solution spinning, which act to deflect cracks and allow energy-consuming polymer deformation. Toughness is sensitive to the volume ratio of the reduced graphene oxide flakes to the carbon nanotubes in the spinning solution and the degree of graphene oxidation. The hybrid fibres were sewable and weavable, and could be shaped into high-modulus helical springs.

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Citations

Jan 8, 2013·ACS Nano·Yuanyuan ShangAnyuan Cao
Jan 20, 2016·ACS Applied Materials & Interfaces·Chao ZhangXuechao Hu
Apr 3, 2016·Advanced Drug Delivery Reviews·Su Ryon ShinAli Khademhosseini
May 22, 2013·Carbohydrate Polymers·Mohammad Shateri-Khalilabad, Mohammad E Yazdanshenas
Dec 12, 2012·Ecotoxicology and Environmental Safety·Lixia JinHaegeun Chung
Sep 30, 2016·Nano Letters·Mochen LiJinliang Qiao
Mar 4, 2017·ACS Applied Materials & Interfaces·Fucong LyuZhouguang Lu
Jan 14, 2017·Chemical Communications : Chem Comm·Chengmin JiangAngel A Martí
Feb 25, 2017·Advanced Materials·Yingjun LiuChao Gao
Apr 5, 2016·Chemical Society Reviews·Yuanyuan ZhangQunfeng Cheng
May 8, 2018·Proceedings of the National Academy of Sciences of the United States of America·Sijie WanRay H Baughman
Aug 8, 2015·Advanced Materials·Fancheng MengTsu-Wei Chou
Aug 30, 2012·Advanced Materials·Nathan O WeissXiangfeng Duan
Feb 13, 2016·Advanced Materials·Yuanyuan ZhangQunfeng Cheng
Sep 25, 2014·Advanced Materials·Miao ZhangGaoquan Shi
Apr 3, 2014·Advanced Materials·Qinghai MengZhengxiao Guo
Jul 30, 2014·Chemical Society Reviews·Huai-Ping CongShu-Hong Yu
Jan 17, 2020·Advanced Healthcare Materials·Yongdeok KimRashid Bashir

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Methods Mentioned

BETA
scanning electron microscopy
X-ray
transmission electron microscopy
scanning tunnelling microscopy
thermal treatments
thermal treatment

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