Improvement of mechanical and oxygen barrier properties of cellulose films by controlling drying conditions of regenerated cellulose hydrogels

Cellulose ◽  
2012 ◽  
Vol 19 (3) ◽  
pp. 695-703 ◽  
Author(s):  
Quanling Yang ◽  
Shuji Fujisawa ◽  
Tsuguyuki Saito ◽  
Akira Isogai
BioResources ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. 2735-2746
Author(s):  
Qianqian Zhu ◽  
Jingjing Wang ◽  
Jianzhong Sun ◽  
Qianqian Wang

The application of cellulose materials for packaging usage has attracted a large amount of attention in recent years. In this study, cellulose was dissolved in a cold NaOH/urea solution. Transparent, strong, and flexible regenerated cellulose/polyvinyl alcohol (PVOH) films were fabricated via a solution blending and casting process. The physicochemical properties of the neat RC films, PVOH films, and RC-PVOH blend films were characterized via scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, tensile tests, gas permeability, and ultraviolet-visible spectroscopy. The results of the physicochemical characterizations indicated that the RC-PVOH composite films with various PVOH contents yielded strong properties in terms of optical transparency, thermal stability, mechanical strength, and oxygen barrier performance. The RC-PVOH films with 8% PVOH loading exhibited a peak degradation temperature of 362 °C, a tensile strength of 80.8 MPa ± 0.3 MPa, and an oxygen permeability of 2.40 cm3 x μm/m2 x 24 h x kPa. The RC-PVOH composite films could be a competitive alternative as a packaging material to replace petroleum-based plastics.


2018 ◽  
Vol 19 (7) ◽  
pp. 2969-2978 ◽  
Author(s):  
Sven F. Plappert ◽  
Sakeena Quraishi ◽  
Nicole Pircher ◽  
Kirsi S. Mikkonen ◽  
Stefan Veigel ◽  
...  

Nanoscale ◽  
2016 ◽  
Vol 8 (2) ◽  
pp. 973-978 ◽  
Author(s):  
Shaoling Cheng ◽  
Yapei Zhang ◽  
Ruitao Cha ◽  
Jinliang Yang ◽  
Xingyu Jiang

By mixing a guar gum (GG) solution with a nanocrystalline cellulose (NCC) dispersion using a novel circular casting technology, we manufactured biodegradable films as packaging materials with improved optical and mechanical properties.


Nanoscale ◽  
2015 ◽  
Vol 7 (42) ◽  
pp. 17957-17963 ◽  
Author(s):  
Quanling Yang ◽  
Tsuguyuki Saito ◽  
Lars A. Berglund ◽  
Akira Isogai

Transparent all-cellulose composites prepared from cellulose nanofibrils and regenerated cellulose exhibit high mechanical strength, stiffness, thermal stability, and oxygen barrier properties with only 1% cellulose nanofibril content, resulting from the nano-reinforcement mechanism and nanofibril-induced crystallization of cellulose molecules in the matrix.


RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12543-12548
Author(s):  
Simi Poulose ◽  
Ilari Jönkkäri ◽  
Mikael S. Hedenqvist ◽  
Jurkka Kuusipalo

Valorization of potato fruit juice, a potato starch industry by-product, by developing biopolymer films that could replace petroleum based alternatives in packaging, providing a greener and sustainable solution to industrial waste management.


2014 ◽  
Vol 30 (8) ◽  
pp. 791-795 ◽  
Author(s):  
Sarat K. Swain ◽  
Satyabrata Dash ◽  
Sudhir K. Kisku ◽  
Rajesh K. Singh

2016 ◽  
Vol 81 (5) ◽  
pp. 589-605 ◽  
Author(s):  
Nenad Djordjevic ◽  
Aleksandar Marinkovic ◽  
Jasmina Nikolic ◽  
Sasa Drmanic ◽  
Milica Rancic ◽  
...  

The morphological, thermal and barrier properties of low-density polyethylene/polycaprolactone-modified nanocellulose hybrid materials were investigated in this paper. Nanonocelulose/magnetite (NC-Fe3O4) nanocomposite and maleic acid functionalized NC/magnetite (NCMA-Fe3O4) nanocomposite were prepared and used as filler at various concentrations (5, 10 and 15 wt. %) in polycaprolactone (PCL) layer. PE was coated with PCL/NC/magnetite layer. The addition of the filler did not unfavorably affect the inherent properties of the polymer, especially its barrier properties. Oxygen permeation measurements show that the oxygen barrier properties of magnetite enriched PCL film were improved due to chemical activity of added material. The highest level of barrier capacity was observed for PE samples coated with PCL based composite with NCMA-Fe3O4 micro/-nanofiller, which implies the significant contribution of nanocellulose surface modification with maleic anhydride residue to improved barrier properties.


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