scholarly journals Optimization of preparation of thermally stable cellulose nanofibrils via heat‐induced conversion of ionic bonds to amide bonds

2017 ◽  
Vol 55 (10) ◽  
pp. 1750-1756 ◽  
Author(s):  
Nathalie Lavoine ◽  
Julien Bras ◽  
Tsuguyuki Saito ◽  
Akira Isogai
Keyword(s):  
Cellulose Nanofibrils ◽  
Thermally Stable ◽  
Amide Bonds ◽  
Ionic Bonds

scholarly journals Mechanically strong, flexible and thermally stable graphene oxide/nanocellulosic films with enhanced dielectric properties

RSC Advances ◽  
2016 ◽  
Vol 6 (54) ◽  
pp. 49138-49149 ◽  
Author(s):  
Yasir Beeran P. T. ◽  
Vid Bobnar ◽  
Selestina Gorgieva ◽  
Yves Grohens ◽  
Matjaž Finšgar ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Dielectric Properties ◽  
Cellulose Nanofibrils ◽  
Thermally Stable ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Flexible Films ◽  
Storage Ability

Mechanically strong and flexible films with dielectric properties and energy storage ability have been fabricated from ammonia-functionalized graphene oxide (NGO) nanoplatelets and cellulose nanofibrils (CNFs) vs. TEMPO pre-oxidized CNFs (TCNFs).

Thermally stable, enhanced water barrier, high strength starch bio-composite reinforced with lignin containing cellulose nanofibrils

2020 ◽  
Vol 230 ◽  
pp. 115626 ◽  
Author(s):  
Chuan-wei Zhang ◽  
Sandeep S. Nair ◽  
Heyu Chen ◽  
Ning Yan ◽  
Ramin Farnood ◽  
...  
Keyword(s):  
Cellulose Nanofibrils ◽  
High Strength ◽  
Thermally Stable ◽  
Water Barrier

scholarly journals Cellulose nanofibril core–shell silica coatings and their conversion into thermally stable nanotube aerogels

2015 ◽  
Vol 3 (30) ◽  
pp. 15745-15754 ◽  
Author(s):  
Dongming Liu ◽  
Qiong Wu ◽  
Richard L. Andersson ◽  
Mikael S. Hedenqvist ◽  
Stefano Farris ◽  
...  
Keyword(s):  
Cellulose Nanofibrils ◽  
Supercritical Drying ◽  
Core Shell ◽  
Low Density ◽  
Thermally Stable ◽  
Cellulose Nanofibril ◽  
Silica Coatings

Thermally stable, ultra-low density, silica-nanotube-based aerogels created via templating from cellulose nanofibrils without relying on energy intensive supercritical drying.

scholarly journals High wet-strength, thermally stable and transparent TEMPO-oxidized cellulose nanofibril film via cross-linking with poly-amide epichlorohydrin resin

RSC Advances ◽  
2017 ◽  
Vol 7 (50) ◽  
pp. 31567-31573 ◽  
Author(s):  
Weisheng Yang ◽  
Huiyang Bian ◽  
Liang Jiao ◽  
Weibing Wu ◽  
Yulin Deng ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Water Resistance ◽  
Cellulose Nanofibrils ◽  
Cross Linking ◽  
Oxidized Cellulose ◽  
Thermally Stable ◽  
Cellulose Nanofibril ◽  
Wet Strength

TEMPO-oxidized cellulose nanofibrils (TOCNs) films cross-linked with different dosages of polyamide epichlorohydrin resin (PAE) show a great water-resistance and thermal stability.

Facile preparation of nanofiller-paper using mixed office paper without deinking

TAPPI Journal ◽  
2015 ◽  
Vol 14 (3) ◽  
pp. 167-174 ◽  
Author(s):  
QIANQIAN WANG ◽  
J.Y. ZHU
Keyword(s):  
Cellulose Nanofibrils ◽  
Ash Content ◽  
Raw Material ◽  
Mechanical Grinding ◽  
Microscope Imaging ◽  
Facile Preparation ◽  
Electron Microscope Imaging ◽  
Thermal Stability Of ◽  
Scanning Electron ◽  
Office Paper

Mixed office paper (MOP) pulp without deinking with an ash content of 18.1 ± 1.5% was used as raw material to produce nanofiller-paper. The MOP pulp with filler was mechanically fibrillated using a laboratory stone grinder. Scanning electron microscope imaging revealed that the ground filler particles were wrapped by cellulose nanofibrils (CNFs), which substantially improved the incorporation of filler into the CNF matrix. Sheets made of this CNF matrix were densified due to improved bonding. Specific tensile strength and modulus of the nanofiller-paper with 60-min grinding reached 48.4 kN·m/kg and 8.1 MN·m/kg, respectively, approximately 250% and 200% of the respective values of the paper made of unground MOP pulp. Mechanical grinding duration did not affect the thermal stability of the nanofiller-paper.

An effective method for determining the retention and distribution of cellulose nanofibrils in paper handsheets by dye labeling

TAPPI Journal ◽  
2018 ◽  
Vol 17 (03) ◽  
pp. 157-164 ◽  
Author(s):  
Shengdan Wang ◽  
Wenhua Gao ◽  
Kefu Chen ◽  
Jinsong Zeng ◽  
Jun Xu ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Congo Red ◽  
Kraft Pulp ◽  
Cellulose Nanofibrils ◽  
Standard Curve ◽  
Congo Red Dye ◽  
Mechanical Disintegration ◽  
Softwood Kraft Pulp ◽  
White Water ◽  
Red Dye

Cellulose nanofibrils (CNF) were prepared by cellulase in conjunction with mechanical disintegration from the bleached softwood kraft pulp and labelled by Congo red dye. The labelled CNF were used to investigate the retention and distribution of CNF in paper handsheets. The retention of the labelled CNF was obtained by measuring the absorbance of white water using an ultraviolet-visible spectrophotometer. The results showed that this method for measuring the retention was rapid, feasible, and sensitive, owing to the high correlation coefficient R2 (0.9993) of the standard curve. The labelled CNF showed even distribution in paper handsheets. The colorimetric values of paper handsheets were explored with a residual ink analyzer.

Investigation of the V4+-Centre in 6H- and 4H-SIC by the Method of Spectral-Hole Burning

1998 ◽  
Vol 512 ◽  
Author(s):  
C. Hecht ◽  
R. Kummer ◽  
A. Winnacker
Keyword(s):  
Electronic Properties ◽  
Room Temperature ◽  
Hole Burning ◽  
Band Offset ◽  
Spectral Hole Burning ◽  
Type Ii ◽  
Thermally Stable ◽  
Spectral Hole

ABSTRACTIn the context of spectral-hole burning experiments in 4H- and 6H-SiC doped with vanadium the energy positions of the V4+/5+ level in both polytypes were determined in order to resolve discrepancies in literature. From these numbers the band offset of 6H/4H-SiC is calculated by using the Langer-Heinrich rule, and found to be of staggered type II. Furthermore the experiments show that thermally stable electronic traps exist in both polytypes at room temperature and considerably above, which may result in longtime transient shifts of electronic properties.

Advanced Thermally Stable Jet Fuels Development Program Annual Report. Volume 1. Model and Experiment System Development

1990 ◽  
Author(s):  
Elmer Klavetter ◽  
Tim O'Hern ◽  
Bill Marshall ◽  
Merrill Jr. ◽  
Frye Ray ◽  
...  
Keyword(s):  
Annual Report ◽  
System Development ◽  
Development Program ◽  
Jet Fuels ◽  
Thermally Stable ◽  
Experiment System
Sign in / Sign up

Export Citation Format

Share Document