Papers by Author: Lucretia Miu

Abstract: A comprehensive investigation has been made of a set of historical leather samples from the 17th – 20th centuries. For the investigation of the degradation degree spectral techniques in IR (MID and NIR) and UV-VIS have been used, and collateral Micro Hot Table (MHT) determination as well. Changes in the physical and chemical characteristics values of the leather issues due to the interaction with the environmental factors during a long period of time were used in order to identify the possible deterioration ways.

Abstract: In the research work some thermoplastic elastomers have been obtained by compounding the ethylene-propylene terpolymer (EPDM) rubber with melt platicized PVC. The influence of every constituent level on the polymer compound characteristics was measured. The two polymers are incompatible, for the improvement of the EPDM/ PVC blends two methods of compatibility improvement have been used: 1) using compatibilizing agents (CPE was the selected compatibilizing agent); 2) electron beam irradiation (the optimum irradiation dose determined was 5 Mrad). The resulted products showed specific elastomer characteristics and can be processed by commonly used techniques for thermoplastic materials like as injection and injection molding.