Journal
SCIENCE CHINA-MATERIALS
Volume 62, Issue 9, Pages 1332-1340Publisher
SCIENCE PRESS
DOI: 10.1007/s40843-019-9421-y
Keywords
CNTs nanocomposite fibers; hydrogel surfaces; flow-induced assembly; super-toughness
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Funding
- National Key R&D Program of China [2017YFA0207800]
- National Natural Science Foundation of China [21574004]
- National Natural Science Funds for Distinguished Young Scholar [21725401]
- 111 project [B14009]
- Fundamental Research Funds for the Central Universities
- National Young Thousand Talents Program
- China Postdoctoral Science Foundation [2017M620012]
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Nanocomposite fibers have attracted intensive attentions owing to their promising applications in various fields. However, the fabrication of nanocomposite fibers with super toughness and strong strength under mild conditions remains a great challenge. Here we present a facile flow-induced assembly strategy for the development of super-tough and strong nanocomposite fibers with highly ordered carbon nanotubes (CNTs), which can be induced by directional and fast flow on a grooved hydrogel surface. The prepared nanocomposite fibers show excellent mechanical properties, with a tensile strength up to 64327 MPa and toughness as high as 77.3 +/- 3.4 MJ m(-3) at ultimate strain of 14.8 +/- 1.5%. This versatile and efficient flow-induced alignment strategy represents a promising direction for the development of high-performance nanocomposites for practical applications.
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