Mass transfer in medium density fiberboard (MDF) modified by NA+ montmorillonite (NA+MMT) nanoclay
Autor: | Reza Zahedsheijani, Hadi Gholamiyan, Asghar Tarmian, Hossein Yousefi |
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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. |
Databáze: | Directory of Open Access Journals |
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