Mass transfer in medium density fiberboard (MDF) modified by Na+ montmorillonite (NA+MMT) nanoclay

• Autores: Reza Zahedsheijani, Hadi Gholamiyan, Asghar Tarmian, Hossein Yousefi
• Localización: Maderas: Ciencia y tecnología, ISSN 0717-3644, ISSN-e 0718-221X, Vol. 13, Nº. 2, 2011, págs. 163-172
• Idioma: inglés
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• Resumen

  • The potential use of nanoclay was examined to modify fluid transfer properties of medium densityfiberboard (MDF). For this, Na+ montmorillonite (Na+MMT) nanoclay was added to urea formaldehyderesin to produce MDF. Then, the air permeability and mass diffusivity of MDF were evaluated. Scanningelectron microscope (SEM) images and X-ray diffraction (XRD) confirmed a dispersion and exfoliationof Na+MMT in the modified MDF. The air permeability presented a systematic decrease with increasingnanoclay amount. This reduction agreed with the simple ��tortuous path�� model. The nanoclay had noeffect on the mass diffusivity.