Preparation of flat porous carbon films from paper-thin wood shavings and control of their mechanical, electrical and magnetic properties

Masao Kitajima, Masamichi Sato, Hiroyuki Nishide

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A method for preparing flat porous carbonized films (FPCFs) by carbonizing paper-thin wood shavings was developed, and their structures and properties were investigated. The FPCFs were binder-free and had horizontal honeycomb structures consisting of macropores of 2-50 μm arising from tracheids and pittings. The FPCFs with approximate dimensions of 120 mm × 104 mm × 113 μm showed some flexibility. They were effectively reinforced and became twistable by introducing styrene-butadiene rubber (SBR) into the macropores via impregnation. The SBR-modified FPCFs carbonized at 1023 K retained electrical conductivity on the order of 10-3 S/m with the inclusion of SBR concentrations up to 15 mg/cm2. The electrical conductivity of FPCFs carbonized at 773 K changed from nonconductive to 10- 2 S/m by impregnating the macropores with electrically conductive carbon paste or to 105 S/m with Cu chemical plating. The FPCFs became responsive to a magnetic field by impregnating the macropores with a magnetic fluid or by creating ferrites through chemical reactions within the macropores.

Original languageEnglish
Pages (from-to)260-269
Number of pages10
JournalCarbon
Volume61
DOIs
Publication statusPublished - 2013 Sep

Fingerprint

Carbon films
Magnetic properties
Wood
Electric properties
Mechanical properties
Butadiene
Styrene
Rubber
Honeycomb structures
Magnetic fluids
Ferrites
Ointments
Pitting
Plating
Impregnation
Binders
Chemical reactions
Carbon
Magnetic fields
styrene-butadiene rubber

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Preparation of flat porous carbon films from paper-thin wood shavings and control of their mechanical, electrical and magnetic properties. / Kitajima, Masao; Sato, Masamichi; Nishide, Hiroyuki.

In: Carbon, Vol. 61, 09.2013, p. 260-269.

Research output: Contribution to journalArticle

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