Vapor grown carbon fiber composites with epoxy and poly(phenylene sulfide) matrices

摘要: Abstract Vapor grown carbon fibers (VGCF, Pyrograf III™ from Applied Sciences, Inc.), with 100–300 nm diameters and ∽10–100 μm lengths, were formulated in various fiber volume fractions into epoxy (thermoset) poly(phenylene sulfide) (thermoplastic) composites. Increases stiffness observed as previous VGCF/organic matrix Large increases flexural strengths achieved both systems demonstrating for the first time that discontinuous randomly oriented can give strength has substantial potential a reinforcement Here-to-fore, addition of VGCF caused decreases. Voids, residual thermal strains (as surface area is ∽35 times greater than 7 μm-diameter PAN fiber), or uncertainties about strength, fiber–matrix bonding degree dispersion, could cause losses strength. Thermal conductivity properties VGCF/ABS (acrylonitrile–butadiene–styrene GE Plastics) VGCF/epoxy composites measured. increased an increase fraction. However, these not significant enough to make fiber/organic candidates thermally conductive materials.