Investigação de revestimentos de painéis de Pinus oocarpa à base de nanofibras de poliestireno e poliestireno com óxido de zinco

Abstract

The search for sustainable materials and the optimization of natural resources are industrial priorities. This study proposes the development of polystyrene (PS) nanofiber-based coatings for Pinus oocarpa panels, aiming to utilize recycled materials and increase their added value. Recycled expanded polystyrene (r-EPS) was used, valorizing the waste and promoting the circular economy. The Solution Blow Spinning (SBS) technique was employed for nanofiber production. Additionally, the incorporation of zinc oxide (ZnO) into the polystyrene nanofibers was investigated to enhance their thermal and mechanical properties. The objective of this study is to evaluate the influence of the PS nanofiber coating, with and without ZnO, on the thermal properties of Pinus oocarpa particleboards. The methodology involves the production of Pinus oocarpa panels, the synthesis of ZnO nanoparticles, and the preparation of recycled PS solutions with different ZnO concentrations (100 mg, 500 mg, and 1000 mg). The coating was applied via SBS. Analyses included the characterization of thermal properties (thermal conductivity and thermal resistance), Raman spectroscopy for molecular characterization and verification of the PS-ZnO interaction, Scanning Electron Microscopy (SEM) for morphological analysis, and Energy Dispersive Spectroscopy (EDS) for compositional analysis.The development of coatings via SBS using recycled EPS represents an advancement in polymer waste management, providing a new technological utility to the material and promoting the closure of the production cycle through its integration into wood panels. The results of this study contribute to the development of enhanced-functionality biomaterials and more sustainable solutions for the construction and furniture industries.