Abstract
AbstractThe main goal of this study is to make new waterborne polyurethane polymers (WPUCs) using bioresources like curcumin as a chain extender and castor oil as a polyol. We explored different mole ratios of curcumin during the synthesis of WPUC polymers. The WPUC dispersions were well‐defined and had nanoparticle sizes that ranged from 80.1 to 48.2 nm. Their zeta potentials were between −61.7 and − 52.2 mV, which showed that they were more stable. The absence of a phenolic hydroxyl band in the synthesized WPUC's IR spectrum indicated the insertion of curcumin into the PU chain. The coating of WPUCs on polyester/cotton (PE/C) blend fabric showed an improvement in colorfastness properties and reduced air permeability. The enhanced bending modulus (enhanced stiffness), improved abrasion resistance, and higher tensile strength were also observed. Furthermore, the WPUC‐coated fabric samples showed a bacterial inhibition percentage of 83.12%–99.9999% (p < 0.001) compared with blank fabric against bacterias' because of the inherent nature of curcumin. Inserting a higher amount of curcumin in the polymer chain of WPUC improved the antibacterial effects. Overall, our findings provide valuable insights for the possible antibacterial textile applications of synthesized WPUCs.
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