Production and Properties of Nanocellulose-Reinforced Methylcellulose-Based Biodegradable Films

Abstract

Methylcellulose (MC)-based films were prepared by casting from its 1% aqueous solution containing 0.5% vegetable oil, 0.25% glycerol, and 0.025% Tween 80. Puncture strength (PS), puncture deformation (PD), viscoelasticity coefficient, and water vapor permeability (WVP) were found to be 147 N/mm, 3.46 mm, 41%, and 6.34 g.mm/m(2).day.kPa, respectively. Aqueous nanocellulose (NC) solution (0.1-1%) was incorporated into the MC-based formulation, and it was found that PS was improved (117%) and WVP was decreased (26%) significantly. Films containing 0.25% NC were found to be the optimum. Then films were exposed to gamma radiation (0.5-50 kGy), and it was revealed that mechanical properties of the films were slightly decreased after irradiation, whereas barrier properties were further improved with a decrease of WVP to 28.8% at 50 kGy. Molecular interactions due to incorporation of NC were supported by FTIR spectroscopy. Thermal properties of the NC-containing films were improved, confirmed by TGA and DSC. Crystalline peaks appeared due to NC addition, found by XRD. Micrographs of films containing NC were investigated by SEM.

Nanocellulose in Thin Films, Coatings, and Plies for Packaging Applications: A Review

“…Secondly, the tiny dimensions of nanocellulose imply a high exposure to its surroundings. The issue of biodegradation has been emphasized in studies in which nanocellulose was used in composite structures with other natural film-forming materials (Lu et al 2008;Ma et al 2008;Cheng et al 2009;Wan et al 2009; Azeredo et al 2010;Bras et al 2010;Khan et al 2010Khan et al , 2012Khan et al , 2014bSiro and Plackett 2010;da Silva et al 2012;Hassan et al 2012;Johnsy and Siddaramaiah 2012;Tang et al 2012; Baheti and Militky 2013; ChingaCarrasco et al 2013;Ollier et al 2013; Bhardwaj et al 2014;Dehnad et al 2014a;Fortunati et al 2014;Ghaderi et al 2014;Khalil et al 2014;Kumar et al 2014;Marais et al 2014;Reddy and Rhim 2014;Song et al 2014;Yang et al 2014; Azizi Samir et al 2015; Feng et al 2015a;Figueiredo et al 2015;Honorato et al 2015;Lavoine et al 2015;Li et al 2015a;Lu et al 2015; Youssef et al REVIEW ARTICLE bioresources.com . "Nanocellulose in packaging," BioResources 12(1), 2143-2233.…”

Immobilization of Tyrosinase in Nanocrystalline Cellulose/Chitosan Composite Film for Amperometric Detection of Phenol

“…A broad peak appeared at 3287 cm -1 , which was not present in the control chitosan film. The band intensity 3287 cm -1 increased suggesting hydrogen bonding which occurred between chitosan and NCC [14]. Band at 1569 cm -1 and 1397 cm -1 , their intensity was increased after NCC addition due to the bending of C-H and -OH group.…”

Coir Fiber Reinforced Polypropylene Composites: Eco-friendly Byproducts

“…Natural and renewable-based bio-materials have greater attention to the scientists and environmental engineers due to their lightweight, low-cost, hazardless, bio-degradability and other eco-friendly nature (Albertson et al, 1994;Raghavan, 1995;Yoon et al, 2007;Khan et al, 2010;Yan et al, 2013). Therefore, various ligno-cellulosic natural fibers have been identified as a potential substitute for commonly applied man made synthetic fibers for the last few decades.…”