The presence of a polyethylene (PE) fraction in recycled polypropylene (PP) will influence the processing as well mechanical and thermal properties polypropylene. objective this work has been to compare methods used determine PE PP, establishing calibration curves for each method. Plastics waste be mix different grades – homopolymers copolymers. It therefore tested how specific material affect ...

THE PHYSICOCHEMICAL CHARACTERISTICS OF RECYCLED-PLASTIC PELLETS OBTAINED FROM DISPOSABLE FACE MASK WASTES. The government policy to wear a face mask during the COVID-19 pandemic has increased disposable wastes. Thus, reduce such wastes, it is necessary evaluate physicochemical characteristics of masks wastes before recycling process and recycled products. In this study, characterization 3-ply p...

The main objective of the presented scientific article is to define mechanical properties polypropylene homopolymer with a prescribed percentage ratio recycled granulate. chosen material intended for injection molding and especially production products made by additive technologies. Experimental verification was realized testing samples produced various concentrations material. underwent tests ...

Four sustainable materials including a recycled polypropylene blend, polybutylene adipate terephthalate, and two grades of polylactic acid are compared to reference isotactic polypropylene. Tensile specimens were produced using two-cavity, hot runner mold with fully automatic cycles per standard industrial practices investigate the effect melt temperature, injection velocity, cycle time, screw ...