Furfuryl alcohol condensate (furan resin) is commonly uses as a matrix precursor [1] of carbon fiber/carbon matrix composites because of the convenience at carbonization process due to thermosetting properties. However, its curing and carbonization process take a long period to prevent the formation of cracks and to remove out the induced pores. Recently, on the other hand, Park et al. added small amount of inorganic fine particles in firran resin to control the microstructure of the furan resin derived carbon or to improve the oxidation resistance of carbon. They reported that even though mixed furan resin with additives were ball-milled for 24 hours, powder sedimented after pouring into polystyrene container. Increasing in the reaction temperature and the amount of catalyst to furan resin did not result in homogeneous and crack free carbon materials. To solve these problems, the authors applied high power ultrasound for the curing process of furan resin. The purpose of this study is to clarify the effect of ultrasonic treatment (sonication) on the curing process in furan resin, and to show the potential method for the homogeneous preparation of cured resin.
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