Wood-polymer composite from secondary thermoplastics with enhanced properties

This article presents the development of novel wood-polymer composites and the investigation of their properties. The study aimed to optimize the composition of wood-polymer composites based on secondary raw materials to achieve improved physical and mechanical characteristics. The effect of modification on the physical and mechanical properties of wood-polymer composites was analyzed in comparison with conventional industrial samples. The dependences of impact strength and static yield strength on the amount of the mixture of petroleum-polymer resin and expanded polystyrene were studied. Additionally, the influence of petroleum-polymer resin content on drying time was evaluated. Key physical and mechanical properties, including impact strength, bending stress, and microhardness, were assessed. The study also explored the climatic effects on wood-polymer composites, particularly the impact of moisture and temperature. Water absorption, wear resistance, and dimensional stability were tested within a temperature range of +300C to –150C. A comparative analysis of the main performance indicators of the proposed composite and existing industrial samples was conducted.