6-5-4 リサイクル炭素繊維の省エネ再生技術(6-5 省エネ技術1,Session 6 省エネルギー)

概要

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It is expected for carbon fiber reinforced plastic (CFRP) to be used as the composite materials of automobiles and aircrafts to significantly reduce the transportation energy. However, the waste CFRP is at present landfilled because it is difficult to be recycled. If a resin component in CFRP can be used as energy, it can significantly reduce the energy in process for recovering the carbon fiber. In the present research based on the material balance and the energy balance using a small electric furnace and a laboratory-scale carbonizing furnace, it was confirmed that the heat capacity of the product gases and tar after thermally decomposed the resin components could cover the amount of heat required to the CFRP pyrolysis and that the energy saving of 38% for a small furnace and of 56% for a large furnace. The recycled carbon fiber was confirmed to have more than 80 % strength of the treated virgin carbon fiber.
2012-07-30