Abstract
The objective of this study is to investigate the effect of sonication time on the morphology and properties of PVA cellulose nanocomposite. PVA nanocomposite films were prepared by reinforcement of cellulose nanofibers into a PVA matrix with different sonication time. Two series of poly(vinyl alcohol) (PVA) films with and without cellulose nanofibers were prepared by varying the sonication time. The effect of sonication time on the morphology and properties of the films were investigated by SEM, FTIR and Raman spectroscopy, TGA, and tensile test. The results showed that the mechanical property of the nanocomposite films increased with increasing sonication time until 9 min.
Highlights
Numerous efforts have been focused on using materials from renewable resources for nanocomposite reinforcement
There are intended to investigate the effect of sonication time on the properties of poly(vinyl alcohol) (PVA)-nanocomposites
The transparency of the resulting PVA cellulose nanofibers with different sonication time films confirms the homogeneous dispersion of cellulose nanofibers in PVA
Summary
Numerous efforts have been focused on using materials from renewable resources for nanocomposite reinforcement. Cellulose, which is known due its availability and excellent properties, especially when in the form of nanofibers, has attracted much attention from many researchers. The addition of cellulose nanofibers in polymer matrix is a great interest to replace the nanofiller from non-renewable materials. The utilization of OPEFBs has attracted a great deal of interest as a reinforcing agent in composite materials (Fahma et al, 2010). The cellulose nanofibers were successfully isolated and characterized from oil palm empty-fruit-bunch (OPEFB) (Fahma et al, 2010) and coconut husk (Fahma et al, 2011).
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