THERMAL-ANALYSIS OF POLYMERIC MATERIALS LOOKED AT FROM THE ENVIRONMENTAL AND RECYCLING POINT-OF-VIEW

This paper presents DSC investigations on the curing kinetics of an ep oxy-polyester (EP/PE) powder coating system with two different acceler ator, and on the crystallization behaviour of a semicrystalline thermo plastic containing regranulate. In addititon thermal degradation and e ntropy relaxation effects of an amorphous thermoplastic due to differe nt injection moulding parameters are discussed. Thermogravimetry resul ts are presented for quantitative analysis of rubber, and for elucidat ing problems which may arise during the injection moulding of thermopl astic regranulate which is obtained from painted rejects. Tle measurem ents were carried out using NETZSCH DSC 200 (heat flux DSC) and thermo balances TG 439 and TG 209.