2024-03-28T09:26:01Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00027057
2023-01-16T04:17:50Z
320:321:322
Dispersion of carbon nanofibers modified with polymer colloids to enhance mechanical properties of PVA nanocomposite film
Toyoda, Naoya
Yamamoto, Tetsuya
open access
© 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Polymer colloid
Nanocomposite film
Carbon nanofiber
Dispersion
Polymer colloids have been used to modify the surface of carbon nanofibers (CNFs), to enhance the mechanical properties of polyvinyl alcohol (PVA) resin/CNF nanocomposite materials prepared by the solution casting method. However, the CNFs showed uneven dispersal within, and adhesion to, the PVA resin. In this study, the colloidal technique using polymer particles was applied to achieve more uniform dispersion of CNFs in PVA resin. This results in the polymeric particles functioning as spacers, thereby inhibiting CNF clustering; and in hydrogen bonding between PVA and polymer particles, thereby increasing surface adhesion between CNF and PVA. Polymer colloids prepared by the emulsion polymerization of styrene and N-vinylacetamide showed particularly notable enhancements of dispersion and surface adhesion in the composites. Consequently, PVA composite film containing uniformly distributed CNFs showed significantly enhanced tensile strength and modulus even at CNF mass fraction of 5.0 wt%.
ファイル公開:2020-11-05
Elsevier
2018-11-05
eng
journal article
AM
http://hdl.handle.net/2237/00029257
https://nagoya.repo.nii.ac.jp/records/27057
https://doi.org/10.1016/j.colsurfa.2018.08.017
0927-7757
Colloids and Surfaces A: Physicochemical and Engineering Aspects
556
248
252
https://nagoya.repo.nii.ac.jp/record/27057/files/Ymanuscript.pdf
application/pdf
534.5 kB
2020-11-05