Influence of the maturation time on the physico-chemical properties of nanocellulose and associated constituents isolated from pseudostems of banana plant c.v. Valery

摘要: Environmental concerns inherent to the manufacture and disposal of synthetic polymers have generated a strong interest toward renewable polymers. Among these materials, nanocellulose is one most studied options due its mechanical, thermal biodegradability properties. It usually isolated from wood. However, use non-woody lignocellulosics, such as banana plant wastes, has been reported. Industrial applications sources require further analysis, for instance, modifications in composition, morphology structure cellulose during maturation their influence on performance. These changes were by isolating c.v. Valery pseudostems harvested at 8, 16 24 weeks. The extracted product was observed field-emission scanning electron microscopy transmission microscopy, analyzed Fourier-transform infrared spectroscopy (FTIR), thermogravimetry X-ray diffraction. Polydisperse nanosized bundles observed, distribution changed with time. contribution non-cellulosic constituents FTIR spectra increased well, while stability decreased. Results indicate that could decrease allomorph ratio sample, modifying performance final product.