Effects of high-temperature thermal annealing on properties of aligned multi-walled carbon nanotube sheets and their composites

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dc.contributor.authorNam, Tran Huu
dc.contributor.authorGoto, Ken
dc.contributor.authorShimamura, Yoshinobu
dc.contributor.authorInoue, Yoku
dc.contributor.authorYamamoto, Go
dc.contributor.authorShirasu, Keiichi
dc.contributor.authorHashida, Toshiyuki
dc.date.accessioned2019-10-08T06:04:00Z
dc.date.available2019-10-08T06:04:00Z
dc.date.issued2019
dc.description.abstractAligned multi-walled carbon nanotube (MWCNT) sheets were thermally annealed at high temperatures of 1800 degrees C, 2200 degrees C, and 2600 degrees C. Pristine and thermally annealed MWCNT/epoxy composites were fabricated using hot-melt prepreg processing. Effects of thermal annealing on properties of aligned MWCNT sheets and their composites were examined. Transmission electron microscope images and Raman spectra measurements of the aligned MWCNT sheets showed an improvement of the MWCNT nanostructure after high-temperature thermal annealing. High-temperature thermal annealing did not cause the change in microstructural morphologies of the MWCNT sheets. Although the strength of the MWCNT sheets after high-temperature thermal annealing did not improve, their stiffness enhanced significantly. Particularly, high-temperature thermal annealing increased markedly both the tensile strength and elastic modulus of the aligned MWCNT/epoxy composites. The enhancement in the tensile strength and elastic modulus of the composites is mainly attributed to significant improvement of the MWCNT nanostructure by high-temperature thermal annealing. Generally, high-temperature thermal annealing improved the stiffness of the aligned MWCNT sheets and their composites considerably.cs
dc.format.extent19 strancs
dc.identifier.doi10.1080/09276440.2019.1670000
dc.identifier.urihttps://dspace.tul.cz/handle/15240/153856
dc.identifier.urihttps://www.tandfonline.com/doi/full/10.1080/09276440.2019.1670000
dc.language.isocscs
dc.publisherTAYLOR & FRANCIS LTD, 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND
dc.relation.ispartofCOMPOSITE INTERFACES
dc.subjectCarbon nanotubescs
dc.subjectnanocompositescs
dc.subjectmechanical propertiescs
dc.subjectheat treatmentcs
dc.subjectsurface modificationcs
dc.titleEffects of high-temperature thermal annealing on properties of aligned multi-walled carbon nanotube sheets and their compositescs
local.identifier.publikace7164
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