FEASIBILITY ANALYSIS OF COMPOSITE MATERIALS ON THE BASIS OF SECONDARY POLYMERS
Composite materials were obtained from such secondary materials as polyethylene terephthalate, polyethylene and polypropylene. Melt flow index of the melt was determined using IIRT – 5 apparatus. By the value of the melt flow index it was that the composite materials can be processed by the injection moulding method. Processing of polymer compound by extrusion is quite difficult as the high temperature of polyethylene terephthalate processing causes destruction of polyethylene and polypropylene thus influencing the final product quality. Optimum share of secondary polymers in the composite materials was determined experimentally. Mechanical and physical properties of the obtained samples were studied. The results of the chemical stability tests made it possible to refer these composite materials to the chemically resistant class. The research group proved that polymer compounds can be used to manufacture packaging materials.