Flexible and Tailorable Alkylviologen/Cellulose Nanocrystals Composite Films for Sustainable Applications in Electrochromic Devices

2018 ◽  
Vol 5 (10) ◽  
pp. 1407-1414 ◽  
Author(s):  
Yun Su ◽  
Fei Yang ◽  
Lijuan Zhou ◽  
Yong Geng ◽  
Jianming Zhang ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Composite Films ◽  
Electrochromic Devices

scholarly journals From Structure to Properties of Composite Films Derived from Cellulose Nanocrystals

ACS Omega ◽  
2017 ◽  
Vol 2 (9) ◽  
pp. 5928-5934 ◽  
Author(s):  
Brandon Vollick ◽  
Pei-Yu Kuo ◽  
Moien Alizadehgiashi ◽  
Ning Yan ◽  
Eugenia Kumacheva
Keyword(s):  
Cellulose Nanocrystals ◽  
Composite Films

scholarly journals Cellulose nanocrystals effect on the stabilization of polyacrylonitrile composite films

Carbon ◽  
2018 ◽  
Vol 134 ◽  
pp. 92-102 ◽  
Author(s):  
Jeffrey Luo ◽  
Huibin Chang ◽  
Po-Hsiang Wang ◽  
Robert J. Moon ◽  
Satish Kumar
Keyword(s):  
Cellulose Nanocrystals ◽  
Composite Films

Composite Films of Poly(vinyl alcohol) and Bifunctional Cross-linking Cellulose Nanocrystals

2015 ◽  
Vol 7 (35) ◽  
pp. 19691-19699 ◽  
Author(s):  
Juho Antti Sirviö ◽  
Samuli Honkaniemi ◽  
Miikka Visanko ◽  
Henrikki Liimatainen
Keyword(s):  
Cellulose Nanocrystals ◽  
Vinyl Alcohol ◽  
Composite Films ◽  
Poly Vinyl Alcohol ◽  
Cross Linking

Coassembly of Gold Nanoparticles and Cellulose Nanocrystals in Composite Films

Langmuir ◽  
2015 ◽  
Vol 31 (18) ◽  
pp. 5033-5041 ◽  
Author(s):  
Ariella Lukach ◽  
Héloïse Thérien-Aubin ◽  
Ana Querejeta-Fernández ◽  
Natalie Pitch ◽  
Grégory Chauve ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Cellulose Nanocrystals ◽  
Composite Films

Preparation and properties of cellulose nanocrystals reinforced collagen composite films

2013 ◽  
Vol 102 (4) ◽  
pp. 1131-1139 ◽  
Author(s):  
Weichang Li ◽  
Rui Guo ◽  
Yong Lan ◽  
Yi Zhang ◽  
Wei Xue ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Composite Films

scholarly journals Layer-by-Layer Assembly of Cationic Guar Gum, Cellulose Nanocrystals and Hydroxypropyl Methylcellulose based Multilayered Composite Films

2021 ◽  
Author(s):  
Arun Saini ◽  
Deepak Sharma ◽  
Yuanyuan Xia ◽  
Aman Saini ◽  
Xiangyu You ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Guar Gum ◽  
Hydroxypropyl Methylcellulose ◽  
Composite Films ◽  
Film Surface ◽  
Strength Properties ◽  
Layer By Layer ◽  
Multilayer Composite ◽  
Nonrenewable Resource ◽  
Multilayered Composite

Abstract Eco-friendly sustainable materials provide an appealing template to replace contemporary synthetic-nonrenewable resource-based materials while maintaining the acceptable material properties to meet the performance requirements. Here, a layer-by-layer (LBL) self-assembly technique was used for fabricating multilayer composite films using all bio-based polymers/polysaccharides, i.e. cationic guar gum (CGg), carboxylated cellulose nanocrystals (cCNCs) and hydroxypropyl methylcellulose (HPMC). A five layered composite film was fabricated by depositing polymeric layers as follows: CGg→cCNCs→HPMC→cCNCs→CGg. The structural analysis of CGg/cCNCs/HPMC multilayered composite films indicated the existence of electrostatic interaction as well as H-bonding between polymeric layers that resulted in homogenous, dense and compact film surface with improved smoothness and strength properties. As compared to pure CGg film, the CGg/cCNCs/HPMC multilayered composite films showed improved tensile strength (84.8% increment) and modulus (29.19% improvement). Importantly, the deposition of HPMC layer contributed in achieving multilayer composite films with more flexible behavior (46.55% improvement in elongation at break). Furthermore, owing to the high transparency (89.5% transmittance), appreciable gas and oil barrier performance and resistance to various solvents (e.g. acetone, THF and DMAc), these multilayer films are promising candidates for various applications including renewable/sustainable packaging materials.

Humidity and Heat Dual Response Cellulose Nanocrystals/Poly(N-Isopropylacrylamide) Composite Films with Cyclic Performance

2019 ◽  
Vol 11 (42) ◽  
pp. 39192-39200 ◽  
Author(s):  
Chengyuan Sun ◽  
Dandan Zhu ◽  
Haiyan Jia ◽  
Kun Lei ◽  
Zhen Zheng ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Composite Films ◽  
Cyclic Performance ◽  
Dual Response

scholarly journals Flexible and Structural Coloured Composite Films from Cellulose Nanocrystals/Hydroxypropyl Cellulose Lyotropic Suspensions

Crystals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 122 ◽  
Author(s):  
Diogo V. Saraiva ◽  
Ricardo Chagas ◽  
Beatriz M. de Abreu ◽  
Cláudia N. Gouveia ◽  
Pedro E. S. Silva ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Near Infrared ◽  
Colloidal Suspension ◽  
Aqueous Suspension ◽  
Composite Films ◽  
Helical Structure ◽  
Infrared Region ◽  
Hydroxypropyl Cellulose ◽  
Chiral Nematic ◽  
Chiral Nematic Structure

Lyotropic colloidal aqueous suspensions of cellulose nanocrystals (CNCs) can, after solvent evaporation, retain their chiral nematic arrangement. As water is removed the pitch value of the suspension decreases and structural colour-generating films, which are mechanically brittle in nature, can be obtained. Increasing their flexibility while keeping the chiral nematic structure and biocompatible nature is a challenging task. However, if achievable, this will promote their use in new and interesting applications. In this study, we report on the addition of different amounts of hydroxypropyl cellulose (HPC) to CNCs suspension within the coexistence of the isotropic-anisotropic phases and infer the influence of this cellulosic derivative on the properties of the obtained solid films. It was possible to add 50 wt.% of HPC to a CNCs aqueous suspension (to obtain a 50/50 solids ratio) without disrupting the LC phase of CNCs and maintaining a left-handed helical structure in the obtained films. When 30 wt.% of HPC was added to the suspension of CNCs, a strong colouration in the film was still observed. This colour shifts to the near-infrared region as the HPC content in the colloidal suspension increases to 40 wt.% or 50 wt.% The all-cellulosic composite films present an increase in the maximum strain as the concentration of HPC increases, as shown by the bending experiments and an improvement in their thermal properties.

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