Regenerated cellulose aerogel: Morphology control and the application as the template for functional cellulose nanoparticles

2020 ◽  
Vol 137 (38) ◽  
pp. 49127
Author(s):  
Yue Tang ◽  
Han‐Qing Wang ◽  
De‐Fa Hou ◽  
Huang Tan ◽  
Ming‐Bo Yang
Keyword(s):  
Morphology Control ◽  
Regenerated Cellulose ◽  
Cellulose Nanoparticles ◽  
Cellulose Aerogel

scholarly journals Fabrication of regenerated cellulose nanoparticles by mechanical disintegration of cellulose after dissolution and regeneration from a deep eutectic solvent

2019 ◽  
Vol 7 (2) ◽  
pp. 755-763 ◽  
Author(s):  
Juho Antti Sirviö
Keyword(s):  
Room Temperature ◽  
Deep Eutectic Solvent ◽  
Regenerated Cellulose ◽  
Mechanical Disintegration ◽  
Cellulose Nanoparticles

Regenerated cellulose nanoparticles were produced by mechanical disintegration of regenerated cellulose obtained from room temperature dissolution in a deep eutectic solvent.

scholarly journals One-Pot Processing of Regenerated Cellulose Nanoparticles/Waterborne Polyurethane Nanocomposite for Eco-friendly Polyurethane Matrix

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 356 ◽  
Author(s):  
Soon Choi ◽  
Min Lee ◽  
Eun Shin
Keyword(s):  
Waterborne Polyurethane ◽  
Mechanical Analysis ◽  
Urea Solution ◽  
Infrared Analysis ◽  
Regenerated Cellulose ◽  
One Pot ◽  
Cellulose Nanoparticles ◽  
Waterborne Polyurethanes ◽  
Stability Of A Solution ◽  
Novel Interactions

Regenerated cellulose nanoparticles (RCNs) reinforced waterborne polyurethanes (WPU) were developed to improve mechanical properties as well as biodegradability by using a facile, eco-friendly approach, and introducing much stronger chemical bonding than common physical bonding between RCNs and WPU. Firstly, RCNs which have an effect on improving the solubility and stability of a solution, thereby resulting in lower crystallinity, were fabricated by using a NaOH/urea solution. In addition, the stronger chemical bond between RCNs and WPU was here introduced by regarding at which stage in particular added RCNs worked best on strengthening their bond in the process of WPU synthesis. The chemical structure, mechanical, particle size and distribution, viscosity, and thermal properties of the resultant RCNs/WPU nanocomposites were investigated by Fourier transform infrared analysis (FTIR), Zeta-potential analysis, viscometer, thermogravimetric analysis (TGA), Instron, and dynamic mechanical analysis (DMA). The results of all characterizations indicated that the RCNs/WPU-DMF associated with the addition of RCNs in DMF-dispersed step resulted in more effectively crosslinked between WPU and nano-fillers of nanocellulose particles in the dispersion than Acetone and Water-dispersed steps, thereby attributing to novel interactions formed between RCNs and WPU.

scholarly journals High Efficiency Conversion of Regenerated Cellulose Hydrogel Directly to Functionalized Cellulose Nanoparticles

2017 ◽  
Vol 38 (23) ◽  
pp. 1700409 ◽  
Author(s):  
Han-Qing Wang ◽  
Huang Tan ◽  
Sun Hua ◽  
Zheng-Ying Liu ◽  
Wei Yang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Regenerated Cellulose ◽  
Cellulose Nanoparticles ◽  
Cellulose Hydrogel ◽  
Efficiency Conversion

A morphological and energy-dispersive x-ray spectroscopy (EDS) investigation of separator-grade cellophane

1994 ◽  
Vol 52 ◽  
pp. 430-431
Author(s):  
Michael E. Rock ◽  
Vern Kennedy ◽  
Bhaskar Deodhar ◽  
Thomas G. Stoebe
Keyword(s):  
Extrusion Process ◽  
Morphological Characterization ◽  
Energy Dispersive ◽  
Regenerated Cellulose ◽  
Battery System ◽  
X Ray ◽  
Functional Differences ◽  
Transmission Electron ◽  
Separator Material ◽  
Underwater Target

Cellophane is a composite polymer material, made up of regenerated cellulose (usually derived from wood pulp) which has been chemically transformed into "viscose", then formed into a (1 mil thickness) transparent sheet through an extrusion process. Although primarily produced for the food industry, cellophane's use as a separator material in the silver-zinc secondary battery system has proved to be another important market. We examined 14 samples from five producers of cellophane, which are being evaluated as the separator material for a silver/zinc alkaline battery system in an autonomous underwater target vehicle. Our intent was to identify structural and/or chemical differences between samples which could be related to the functional differences seen in the lifetimes of these various battery separators. The unused cellophane samples were examined by transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS). Cellophane samples were cross sectioned (125-150 nm) using a diamond knife on a RMC MT-6000 ultramicrotome. Sections were examined in a Philips 430-T TEM at 200 kV. Analysis included morphological characterization, and EDS (for chemical composition). EDS was performed using an EDAX windowless detector.

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