Usage of Cellulose Acetate Butyrate Based Oligomeric Structures on Cotton Fabric Coatings

Abstract

In this study, the hydroxyl groups of cellulose acetate butyrate (CAB) oligomer were reacted withtoluene diisocyanate-hydroxyethyl methacrylate (TDI-HEMA) adduct, in order to improve properties of CABsuch as flexibility, thermal stability, etc. Then the obtained modified CAB oligomer was characterized by FTIRand 1H NMR analysis. UV-curable coating formulations were prepared by using the modified CAB oligomer,and then applied on cotton fabrics in order to reinforce cotton fabrics and make them durable in outdoorenvironments. Cotton fabrics were treated with a commercial washing detergent, alkaline solution, and anenzyme prior to the UV-coating, in order to increase the adhesion between the cotton fabric and coatinglayer. Washed and coated fabrics were evaluated in terms of absorbency, tensile, and adhesion properties,respectively. Light microscopy was employed to observe the effects of washing processes on fiber, and toshow the abrasion deformation on coated fabric. Results proved that the best washing process in fibrillationwas found as enzymatic washing due to the highest adhesion strength and the least deformation againstabrasion.