Journal
SCIENTIFIC REPORTS
Volume 3, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/srep03438
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Funding
- Australian Research Council (ARC)
- ARC Federation Fellowship
- UOW
- ARC
- AIIM
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With the aim of fabricating multifunctional fibers with enhanced mechanical properties, electrical conductivity and electrochemical performance, we develop wet-spinning of composite formulation based on functionalized PEG-SWNT and PEDOT:PSS. The method of addition and loading are directly correlated to the quality and the ease of spinnability of the formulation and to the mechanical and electrical properties of the resultant fibers. Both the fiber modulus (Y) and strength (sigma) scaled linearly with PEG-SWNT volume fraction (V-f). A remarkable reinforcement rate of dY/dV(f) = 417 GPa and d sigma/dV(f) = 4 GPa were obtained when PEG-SWNTs at V-f <= 0.02. Further increase of PEG-SWNTs loading (i.e. up to V-f 0.12) resulted in further enhancements up to 22.8 GPa and 254 MPa in Modulus and ultimate stress, respectively. We also show the enhancement of electrochemical supercapacitor performance of composite fibers. These outstanding mechanical, electrical and electrochemical performances place these fibers among the best performing multifunctional composite fibers.
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