Cellulose Nanocrystals (CNCs) Induced Crystallization of Polyvinyl Alcohol (PVA) Super Performing Nanocomposite Films

2019 ◽  
Vol 19 (3) ◽  
pp. 1800347 ◽  
Author(s):  
Tal Ben Shalom ◽  
Yuval Nevo ◽  
David Leibler ◽  
Zvi Shtein ◽  
Clarite Azerraf ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Cellulose Nanocrystals ◽  
Nanocomposite Films ◽  
Induced Crystallization

Bio-nanocomposite films based on cellulose nanocrystals filled polyvinyl alcohol/chitosan polymer blend

2015 ◽  
Vol 132 (22) ◽  
pp. n/a-n/a ◽  
Author(s):  
Nassima El Miri ◽  
Karima Abdelouahdi ◽  
Mohamed Zahouily ◽  
Aziz Fihri ◽  
Abdellatif Barakat ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Polymer Blend ◽  
Cellulose Nanocrystals ◽  
Nanocomposite Films

scholarly journals Lignin–Cellulose Nanocrystals from Hemp Hurd as Light-Coloured Ultraviolet (UV) Functional Filler for Enhanced Performance of Polyvinyl Alcohol Nanocomposite Films

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3425
Author(s):  
Yi Zhang ◽  
Abu Naser Md Ahsanul Haque ◽  
Maryam Naebe
Keyword(s):  
Polyvinyl Alcohol ◽  
Cellulose Nanocrystals ◽  
Nanocomposite Film ◽  
Nanocomposite Films ◽  
Uv Shielding ◽  
Light Region ◽  
Food Package ◽  
Potential Applications ◽  
Extraction Processes ◽  
Hemp Hurd

Lignin is a natural light-coloured ultraviolet (UV) absorber; however, conventional extraction processes usually darken its colour and could be detrimental to its UV-shielding ability. In this study, a sustainable way of fabricating lignin–cellulose nanocrystals (L-CNCs) from hemp hurd is proposed. A homogeneous morphology of the hemp particles was achieved by ball milling, and L-CNCs with high aspect ratio were obtained through mild acid hydrolysis on the ball-milled particles. The L-CNCs were used as filler in polyvinyl alcohol (PVA) film, which produced a light-coloured nanocomposite film with high UV-shielding ability and enhanced tensile properties: the absorption of UV at wavelength of 400 nm and transparency in the visible-light region at wavelength of 550 nm was 116 times and 70% higher than that of pure PVA, respectively. In addition to these advantages, the nanocomposite film showed a water vapour transmission property comparable with commercial food package film, indicating potential applications.

Development of polyvinyl alcohol/chitosan bio-nanocomposite films reinforced with cellulose nanocrystals isolated from rice straw

2018 ◽  
Vol 449 ◽  
pp. 591-602 ◽  
Author(s):  
Anand Babu Perumal ◽  
Periyar Selvam Sellamuthu ◽  
Reshma B Nambiar ◽  
Emmanuel Rotimi Sadiku
Keyword(s):  
Polyvinyl Alcohol ◽  
Rice Straw ◽  
Cellulose Nanocrystals ◽  
Nanocomposite Films

Novel superabsorbent membranes made of PVA and Ziziphus spina-christi cellulose for agricultural and horticultural applications

2017 ◽  
Vol 41 (18) ◽  
pp. 9688-9700 ◽  
Author(s):  
E. M. Abdel Bary ◽  
Ahmed Fekri ◽  
Yaser A. Soliman ◽  
Ammar N. Harmal
Keyword(s):  
Polyvinyl Alcohol ◽  
Cellulose Nanocrystals ◽  
Hot Press

Novel superabsorbent membranes consisting of polyvinyl alcohol (PVA), cellulose nanocrystals (CNCs) from Ziziphus spina-christi fibers (ZSP-fibers), glutaraldehyde (GLA) and glycerin (G) were prepared using a Hydraulic Lamination Hot Press machine.

Enhanced functional properties of biodegradable Polyvinyl alcohol /carboxymethyl cellulose (PVA/CMC) composite films reinforced with L-alanine surface modified CuO nanorods

2021 ◽  
Author(s):  
Yamanappagouda Amaregouda ◽  
Kantharaju Kamanna ◽  
Tilak Gasti ◽  
Vijay Kumbar
Keyword(s):  
Polyvinyl Alcohol ◽  
Carboxymethyl Cellulose ◽  
Food Packaging ◽  
Composite Films ◽  
Nanocomposite Films ◽  
Soil Burial ◽  
High Antibacterial Activity ◽  
Active Food Packaging ◽  
Surface Modified ◽  
Cuo Nanorods

Abstract Herein, we described novel biogenic preparation of the CuO nanorods and its surface modification with L-alanine amino acid accelerated by microwave irradiation. The effect of surface functionalized CuO nanorods on the polyvinyl alcohol/carboxymethyl cellulose film physico-mechanical properties were investigated through various characterization techniques. The tensile strength was improved from 28.58 ± 0.73 MPa to 43.40 ± 0.93 MPa, UV shielding ability and barrier to the water vapors were highly enhanced when PVA/CMC matrices filled with 8 wt% of CuO-L-alanine. In addition, the prepared films exhibited acceptable overall migration limit and readily undergoes soil burial degradation. Nevertheless, CuO-L-alanine incorporated films showed potent antioxidant activity against DPPH radicals and had high antibacterial activity against Staphylococcus aureus and Escherichia coli, and antifungal activity against Candida albicans and Candida tropicalis. Furthermore, the nanocomposite films showed negligible cytotoxic effect on HEK293 and Caco-2 cell lines. In these contexts, the developed nanocomposite films can be implementing as an active food packaging material.

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