Open-cell foams have better sound absorption abilities over conventional closed-cell foams. One approach to develop new foamed materials with improved acoustic abilities is to control their cellular-structural properties through the manipulation of processing parameters. This paper presents a novel method to process open-cell polymeric foams. A combined process of rotational foam molding and paniculate leaching was used to produce open-cell foams for acoustic absorption. Foamed samples were characterized on their cellular morphologies and acoustic properties.
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