Abstract
The present study was aimed to investigate the novel approach for the promotion of leather finishing properties through the incorporation of copper nanoparticles (Cu nanoparticles). Cu nanoparticles were synthesized by chemical reduction method, and particle sizes were in the range of 25–50 nm. X-ray diffraction, transmission electron microscope, ultra violet-vis spectrometry and scanning electron microscopy were used to characterize the Cu nanoparticles. The ascorbic acid was used as a protective agent to prevent the oxidation. Polyvinylpyrrolidone used as a stabilizing and dispersing agent, whereas sodium borohydride was used as a reducing agent. Spray coatings were carried out with Cu nanoparticles on both base and top coat formulations to evaluate their performance properties. Interestingly, the Cu nanoparticles coated leather samples showed the improved wet and rub fastness, color fastness to water and adhesion strength.
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