SciELO - Scientific Electronic Library Online

 
vol.18 número4Wood under fresh water: Effect on the chemical properties and on decay resistance índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Compartir


Maderas. Ciencia y tecnología

versión On-line ISSN 0718-221X

Resumen

KORD, Behzad; MALEKIAN, Behrouz; YOUSEFI, Hossein  y  NAJAFI, Abdollah. Preparation and characterization of nanofibrillated Cellulose/Poly (Vinyl Alcohol) composite films. Maderas, Cienc. tecnol. [online]. 2016, vol.18, n.4, pp.743-752. ISSN 0718-221X.  http://dx.doi.org/10.4067/S0718-221X2016005000065.

Poly (vinyl alcohol) based composite films with different loadings of cellulose nanofibrils were prepared using a solvent casting method and their tensile, optical and wettability properties were tested. The morphology of both neat poly (vinyl alcohol) and nanocomposites was explored by using a field emission scanning electron microscope technique. Results indicated that the tensile strength and Young's modulus of poly (vinyl alcohol) composite films were significantly improved with the increase of cellulose nanofibrils loading. However, the percentage of elongation at break decreased with increasing of cellulose nanofibrils. The films became increasingly opaque with increasing cellulose nanofibrils contents, although the composites also retained moderate transparency. The samples containing cellulose nanofibrils exhibited higher hydrophobicity compared with that of neat poly (vinyl alcohol). Field emission scanning electron microscope micrographs revealed that the cellulose nanofibrils were homogeneously dispersed in the poly (vinyl alcohol) matrix.

Palabras clave : Cellulose nanofibril; color measurement; contact angle; tensile properties; transparency.

        · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons