INVESTIGATION OF THE EFFECTS OF DIFFERENT PLASTICIZERS ON THE PHYSICAL AND BARRIER PROPERTIES OF THE FILMS PRODUCED WITH HYDROLYSATE OBTAINED FROM THE TRIMMING WASTES.
Project no. 1342 · Status: Kapanmış · 2018
Summary
Leather manufacture involves the conversion of raw hides and hides to leather by a series of mechanical and chemical processes. Among the leather industry solid wastes include trimming, fleshing and shaving wastes. Today, landfill and incineration methods are highly preferred for the disposal of these solid wastes. Due to the fact that solid wastes are rich in collagen in recent years, promising studies have been carried out to turn them into high value added by-products. These studies also help ensure sustainability in the leather industry. Plastic packaging is widely criticized for causing environmental pollution. Collagen hydrolysate-based biodegradable films from leather industry trimming waste can provide an environmentally friendly alternative to plastic films. However, due to the fragility of pure protein based films, they need efficient, sustainable, non-toxic plasticizers for practical applications. In this research, collagen hydrolysate was extracted from the trimming wastes of the leather industry and collagen hydrolysate based films were obtained using the casting method. The effect of plasticizer type (glycerol, PEG-300 and sorbitol) and concentration (0%, 10%, 20% and 30%, (w/w)) used in film production on thickness, tensile strength, elongation at break (%), solubility (%) and color properties of collagen hydrolysate based films were investigated. In addition, interactions between plasticizer and collagen hydrolysate were investigated using FTIR analysis.