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Carbon/liquid-crystal polymer composites were formulated. Composites containing one of three types of carbon filler, composites containing two types of carbon filler, and composites containing all three types of carbon filler were prepared to test not only the effect of each filler on the thermal conductivity of the composite, but also the effect of combining fillers. The anisotropic method on a TPS system was used for the thermal conductivity measurements. ...
Adding conductive fillers to polymer resins improves the thermal conductivity of the polymers. In this study, Thermocarb TC-300 synthetic graphite and Fortafil 243 carbon fiber were added to Vectra A950RX liquid crystal polymer (LCP) to produce anisotropic single and multiple filler composites. A Thermal Constants Analyzer measured the thermal conductivity of the composites using the transient plane source (TPS) technique. The formulations that contained Thermocarb fillers had higher in- and ...
Through the addition of synthetic graphite particles and carbon fiber to nylon 6,6 in amounts of 10-40 wt.% and 5-40 wt.% respectively, nylon composites were prepared. These composites were then analyzed using the guarded heat flow apparatus to measure through-plane thermal conductivity. Then the transient plane source (TPS) technique was used to measure the through-plane and in-plane thermal conductivities of the composites to compare to the guarded heat flow apparatus. A ...
Three different carbons (carbon black, synthetic graphite particles and carbon fiber) were added to Vectra A950RX Liquid Crystal Polymer in order to synthesize different composites for use in fuel cells. The carbon fillers were used individually and also in combination with other carbon fillers. A TPS was used to measure the thermal conductivities of the synthesized composites. It was found that the use of synthetic graphite particles as the ...
Two different types of polyacrylonitrile carbon fibers (Fortafil 243 and Panex 30) were added to thermoplastic matrix (Vectra A950RX Liquid Crystal Polymer) in order to generate carbon fiber/liquid-crystal polymer composites. The in plane and through-plane thermal conductivities of these composites were then evaluated and compared to values generated from a theoretical model, with good agreement. Panex 30 gave higher in-plane thermal conductivity than Fortafil 243 for all volume fractions studied....
