TANSO
Online ISSN : 1884-5495
Print ISSN : 0371-5345
ISSN-L : 0371-5345
Short Paper
Wear properties of carbon composites reinforced by carbon nanofibers derived from iodine-treated bacterial cellulose
Kazumasa Nakamura Masatoshi SatoRie MatsuzakiTsugiko Takase
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JOURNAL FREE ACCESS

2016 Volume 2016 Issue 274 Pages 139-144

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Abstract

Bacterial cellulose (BC) fibers which are produced by acetic acid bacteria and are a well-known biomass resource were used to synthesize carbon nanofibers (CNFs) as a filler of C/C composites. The iodine treatment of BC resulted in large improvements in carbonization yield and surface textural-changes during CNF preparation in comparison with raw BC. The C/C composites were prepared from furan resin with BC fibers and CNFs derived from raw or iodine-treated BC, and their wear properties were examined. Composites filled with 0.5 wt% or more of CNFs obtained from iodine-treated BC showed a lower relative wear volume than C/C composites with BC fiber or CNFs from raw BC. Taking into account the densities, electrical conductivities and SEM observations of the C/C composites with different fillers, it is suggested that the higher wear resistance is related to the unique surface texture of CNFs obtained from iodine-treated BC which improved interface adhesion between the fibers and the matrix.

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© 2016 The Carbon Society of Japan
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