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THE USE OF NANO-SILVER PARTICLES TO DETERMINE THE ROLE OF THE REVERSE TEMPERATURE GRADIENT IN MOISTURE FLOW IN WOOD DURING LOW-INTENSITY CONVECTIVE DRYING

Volumen 3, Edición 2, 2012, pp. 149-156
DOI: 10.1615/SpecialTopicsRevPorousMedia.v3.i2.60
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SINOPSIS

The potential use of nanotechnology was employed to accurately determine the role of the reverse temperature gradient as a driving force for moisture transfer in wood during a low-temperature convective drying process. Poplar boards treated with nano-silver (nano-Ag) particle suspension were conventionally dried at a constant mild drying condition. In contrast to untreated boards, a reverse temperature gradient developed in the nano-Ag-treated boards; i.e., a greater temperature value in the core compared to the surface developed within the treated boards due to the distinct thermal conductivity of the nanoparticles. The insignificant effect of nano-Ag treatment on the drying rate of wood in the domain of bound water diffusion reflects that the temperature gradient cannot be considered as an effective driving force for moisture flow in wood during a low-intensity convective drying process.

CITADO POR
  1. Salem Mohamed Z.M., Silver nanoparticle applications in wood, wood-based panels, and textiles, in Silver Nanomaterials for Agri-Food Applications, 2021. Crossref

  2. Gaitán-Alvarez Johanna, Moya Roger, Mantanis George I., Berrocal Alexander, Furfurylation of tropical wood species with and without silver nanoparticles: Part I: Analysis with confocal laser scanning microscopy and FTIR spectroscopy, Wood Material Science & Engineering, 2021. Crossref

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