Tough protein-carbon nanotube hybrid fibers comparable to natural spider silks

	Tough protein-carbon nanotube hybrid fibers comparable to natural spider silks
	Fang, GQ; Zheng, ZK; Yao, JR; Chen, M; Tang, YZ; Zhong, JJ; Qi, ZM; Li, Z; Shao, ZZ; Chen, X
刊名	JOURNAL OF MATERIALS CHEMISTRY B
	2015
卷号	3 期号:19 页码:3940-3947
通讯作者	Chen, X (reprint author), Fudan Univ, Collaborat Innovat Ctr Polymers & Polymer Composi, Dept Macromol Sci, Adv Mat Lab,State Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China.,chenx@fudan.edu.cn
英文摘要	Animal silks, especially spider dragline silks, have an excellent portfolio of mechanical properties, but it is still a challenge to obtain artificial silk fibers with similar properties to the natural ones. In this paper, we show how to extrude tough regenerated silk fibers by adding a small amount of commercially available functionalized multiwalled carbon nanotubes (less than 1%) through an environmentally friendly wet-spinning process reported by this laboratory previously. Most of the resulting regenerated silk fibers exhibited a breaking energy beyond 130 MJ m(-3), which is comparable to spider dragline silks (similar to 160 MJ m(-3)). The best of these fibers in terms of performance show a breaking stress of 0.42 GPa, breaking strain of 59%, and breaking energy of 186 MJ m(-3). In addition, we used several advanced characterization techniques, such as synchrotron radiation FTIR microspectroscopy and synchrotron radiation X-ray diffraction, to reveal the toughening mechanism in such a protein-inorganic hybrid system. We believe our attempt to produce such tough protein-based hybrid fibers by using cheap, abundant and sustainable regenerated silkworm protein and commercially available functionalized carbon nanotubes, with simplified industrial wet-spinning apparatus, may open up a practical way for the industrial production of super-tough fiber materials.
学科主题	Materials Science
类目[WOS]	Materials Science, Biomaterials
关键词[WOS]	BOMBYX-MORI-SILK ; SYNCHROTRON FTIR MICROSPECTROSCOPY ; RAMAN-SPECTROSCOPY ; STRUCTURAL-CHARACTERIZATION ; MECHANICAL-PROPERTIES ; AQUEOUS-SOLUTIONS ; COMPOSITE FIBERS ; FIBROIN SOLUTION ; ARTIFICIAL SILK ; SINGLE
收录类别	SCI
语种	英语
WOS记录号	WOS:000354208900005
内容类型	期刊论文
版本	出版稿
源URL	[http://202.127.25.143/handle/331003/99]
专题	上海生化细胞研究所_上海生科院生化细胞研究所
推荐引用方式 GB/T 7714	Fang, GQ,Zheng, ZK,Yao, JR,et al. Tough protein-carbon nanotube hybrid fibers comparable to natural spider silks[J]. JOURNAL OF MATERIALS CHEMISTRY B,2015,3(19):3940-3947.
APA	Fang, GQ.,Zheng, ZK.,Yao, JR.,Chen, M.,Tang, YZ.,...&Chen, X.(2015).Tough protein-carbon nanotube hybrid fibers comparable to natural spider silks.JOURNAL OF MATERIALS CHEMISTRY B,3(19),3940-3947.
MLA	Fang, GQ,et al."Tough protein-carbon nanotube hybrid fibers comparable to natural spider silks".JOURNAL OF MATERIALS CHEMISTRY B 3.19(2015):3940-3947.