Waste cooking oil of renewable polymer foam composite as sound absorbent materials

The acoustics of renewable polymer foam composite as sound absorption materials has been developed. The beginning stage is started by converting waste cooking oil into renewable monomer, added with waste fillers and crosslink with hardener to solidify as polymer foam composites. The sound absorption coefficient (α) at different frequency range revealed that the renewable polymer foam of 10.0 % fillers shows highest α of 0.963. This is contributing to the acoustic application of car dashboards, door panels, cushion and etc.