Nanocomposite Materials Absorb Heat from Solar Energy Based on Polyurethane Resin and Nanoparticles: Fabrication and Application
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The report mentioned the foam nanocomposites based on polyurethane resin and nanoparticles that used to absorb solar energy to provide heat for drying oven. We synthesized ferrite nanoparticles and carbon-based materials including: graphite, carbon nanotubes, graphene as heat absorbent materials for foam nanocomposites. The morphology and structure of the obtained nanoparticles were characterized by using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Raman spectroscopy, Zeta-potential measurements and thermal conductivity. Interestingly, the presence of nanoparticles allows the temperature at surface of foam nanocomposites reach approximately 70 °C under sunlight. The nanocomposite material applied as heat absorbent plate for the experimental drying oven with volume about 1 m3. This model makes wood drying convenient, energy-saving and cost-effective compared to steam and electric drying.