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

Autor: Reza Zahedsheijani, Hadi Gholamiyan, Asghar Tarmian, Hossein Yousefi
Jazyk: English<br />Spanish; Castilian
Rok vydání: 2014
Předmět:
Zdroj: Maderas: Ciencia y Tecnología, Vol 13, Iss 2 (2014)
Druh dokumentu: article
ISSN: 0717-3644
0718-221X
Popis: The potential use of nanoclay was examined to modify fluid transfer properties of medium density fiberboard (MDF). For this, Na+ montmorillonite (Na+MMT) nanoclay was added to urea formaldehyde resin to produce MDF. Then, the air permeability and mass diffusivity of MDF were evaluated. Scanning electron microscope (SEM) images and X-ray diffraction (XRD) confirmed a dispersion and exfoliation of Na+MMT in the modified MDF. The air permeability presented a systematic decrease with increasing nanoclay amount. This reduction agreed with the simple "tortuous path" model. The nanoclay had no effect on the mass diffusivity.
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