Ageing Characteristics of Novel Polyurethanes and Its Composites Based on Cardanol
Keywords:
Cardanol, 4,4'-methylenebis(cyclohexyl) isocyanate, polyethylene glycol-4000, coir fiber, ageing.Abstract
Synthesis of novel polyurethanes and its composites from cardanol-based polyols were reported. Polyurethanes were synthesized from cardanol-based polyols with 4,4’-methylenebis(cyclohexyl) isocyanate and polyethylene glycol-4000. Polyurethane composites were synthesized using coir fiber with the above system. The ageing characteristics of the newly prepared polyurethanes and its composites has been studied. These studies revealed better hydrolytic, chemical and environmental resistance of rigid polyurethane and its composites when compared to tough polyurethane and its composites.
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