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Composite materials made from polymer waste and wasted fillers as thermal insulation materials

Jacek Iwko, Beata Anwajler, Oliwia Trzaska, Paweł Noszczyk, Roman Wróblewski, Piotr Szulc

Rynek Energii

2024

Nr 6

93--103

This paper describes an experimental study to determine the mechanical properties and thermal conductivity of recycled polymer waste with the addition of recycled fillers. The influence of different preparation methods for the composites (processing by pressing and processing by pressing with extrusion) and the type of additives used (ground Tetra Pak™ cardboard and sawdust) along with their volume fractions (0, 10, 20, and 30%) in the produced materials on their thermal conductivity, impact strength, bending strength, and deflection temperature was analyzed. The results show comparable thermal insulation to materials commonly used in the construction industry as energy-efficient masonry substrates. The material was coherent, had significant bending strength and sufficient impact strength. It was characterized by a low thermal conductivity coefficient of around 0.15 W/(m K). Through their research, the authors have demonstrated the feasibility of various plastic waste materials with used fillers, indicating their potential future use in the construction industry as thermal insulation materials.