Enhancing the performance properties of ester-cross-linked cotton fabrics using Al ₂ O ₃ -NPs

Abstract

In this research, use of aluminum oxide nano-particles (Al 2 O 3 -NPs) as a catalyst and co-catalyst in the wrinkle-resistant finishing of cotton fabric with 1,2,3,4-butanetetracarboxylic acid (BTCA), was investigated. For this, cotton fabrics were cross-linked with BTCA catalyzed by Al 2 O 3 -NPs or sodium hypophosphite (SHP) in the presence of Al 2 O 3 -NPs as the co-catalyst. Surface morphology and chemical composition of the treated fabrics beside the fabric properties, such as wrinkle resistance, flame retardancy, yellowing, and air permeability, were also evaluated. Scanning electron microscope and energy-dispersive X-ray microanalysis proved the presence of Al 2 O 3 -NPs on the fabric structure. The cross-linking of the fabrics with BTCA catalyzed by Al 2 O 3 -NPs or SHP was identified by Fourier transform infrared spectroscopy. The fabric test results indicated that the Al 2 O 3 -NPs co-catalyst could act as a multifunctional finishing material. The flame retardant property of the fabric, besides wrinkle resistance, was improved. It was also concluded that Al 2 O 3 -NPs could enhance the finishing performance and minimize the side effect of SHP.