Polyurethane foams (PFs) are widely used in mattresses, upholstery, and insulation, but disposal is difficult due to the disintegration time and environmental hazards of synthetic polyol. This work investigates a sustainable alternative by replacing poly(ethylene glycol) (PEG) with corn cob fibers and incorporating antibacterial silver nanoparticles (AgNPs). Corn cob fibers and sodium hydroxide-treated fibers were used to make foams, with corn cob fibers substituting PEG at 5–30 wt %. In terms of durability and elastic modulus, low-fiber-content foams matched nonfiber counterparts. Higher fiber content (more than 20%) resulted in divergent properties with potential benefits. In terms of viscoelastic qualities, foams with a 15% fiber content outperformed nonfiber foam. Antimicrobial testing revealed that AgNP-infused foams with 15% corn cob fibers effectively inhibited microbiological growth.
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