Production of Flaky Graphite Particles by the Exfoliation Method and their Application to Electrical Conductive Composite Films

Hirabayashi, Yasushi; Nishino, Tomoe; Fujiwara, Yasunori; Fujimoto, Toshiyuki; Kuga, Yoshikazu

doi:10.4164/sptj.47.684

Cited by 6 publications

(1 citation statement)

References 13 publications

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“…The resulting composite resin was coated onto a commercial glass slide, dried at 60°C for 1 18 hour, and heated to 130°C in 5 min in order to polymerize the resin. This method of 1 preparing the composite resin is suitable for measuring electrical conductivity [22]. To 2 investigate the electrical conductivity of the composite resin, the average resistance was 3 measured at 10 sampling points by using two kinds of resistance instruments.…”

Section: Electrical Conductivity Measurement 14mentioning

confidence: 99%

Production of thin graphite sheets for a high electrical conductivity film by the mechanical delamination of ternary graphite intercalation compounds

Yamanaka

Nishino

Fujimoto

et al. 2012

Carbon

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1Herein we propose a production scheme for conductive films composed of thin graphite 2 sheets with high crystallinity and polymeric resin. The crystalline graphite sheets were 3 successfully produced from natural graphite powder by solution-phase synthesis of graphite 4 intercalation compounds (GICs), following a wet planetary-ball milling under mild 5 conditions. The shear forces in the milling pot lead to a peeling of graphite flakes. Taking 6 into consideration the interlayer bonding force, the delamination should be preferentially 7 done from the expanded GICs interlayer rather than intrinsic graphite one. Some composite 8 films derived from the phenolic resin and flaky graphite sheets displayed much higher 9 electrical conductivities compared to the film from the feed graphite particles. We also 10 demonstrate the stage structure of synthetic GICs affected the film conductivity. The 11 composite films made from exfoliated products of ground (around stage IV) GICs exhibited 12 high electrical conductivity with a small amount of the graphite sheets. 13 14 15 16

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Section: Electrical Conductivity Measurement 14mentioning

confidence: 99%