TY - JOUR
T1 - Water-soluble polysaccharides promoting production of redispersible nanocellulose
AU - Hu, Liqiu
AU - Xu, Wenyang
AU - Gustafsson, Jan
AU - Koppolu, Rajesh
AU - Wang, Qingbo
AU - Rosqvist, Emil
AU - Sundberg, Anna
AU - Peltonen, Jouko
AU - Willför, Stefan
AU - Toivakka, Martti
AU - Xu, Chunlin
N1 - Funding Information:
Mr. Liqiu Hu and Mr. Qingbo Wang would like to acknowledge the financial support from the China Scholarship Council (Student ID 201908120107 for Liqiu Hu and Student ID 201907960002 for Qingbo Wang) to his doctoral study at ÅAU, Finland. All researchers in Laboratory of Natural Materials Technology are acknowledged for research assistance to support the current work. This work is also part of activities within the Johan Gadolin Process Chemistry Centre (PCC) at ÅAU.
Funding Information:
Mr. Liqiu Hu and Mr. Qingbo Wang would like to acknowledge the financial support from the China Scholarship Council (Student ID 201908120107 for Liqiu Hu and Student ID 201907960002 for Qingbo Wang) to his doctoral study at ÅAU, Finland. All researchers in Laboratory of Natural Materials Technology are acknowledged for research assistance to support the current work. This work is also part of activities within the Johan Gadolin Process Chemistry Centre (PCC) at ÅAU.
Publisher Copyright:
© 2022
Copyright © 2022. Published by Elsevier Ltd.
PY - 2022/12/1
Y1 - 2022/12/1
N2 - To date, the energy-intensive production and high-water content severely limits nanocellulose applications on a large scale off-site. In this study, adding water-soluble polysaccharides (PS) to achieve an integrated process of water-redispersible nanocellulose production was well established. The addition of PS, in particular carboxymethylated-galactoglucomannan (cm-GGM), facilitates fibre fibrillation enabling homogenization at a higher solid content at 1.5 wt% compared with around 0.4 wt% for neat fibre. More importantly, the addition of cm-GGM saved 73 % energy in comparison without PS addition. Good water redispersibility of thus-prepared nanocellulose was validated in viewpoints of size distribution, morphology, viscosity and film properties as compared with neat nanocellulose. The tensile strength and optical transmittance of nanocellulose films increased to 116 MPa and 77 % compared to those without PS addition of 62 MPa and 74 %, respectively. Collectively, this study provides a new avenue for large-volume production of redispersible nanocellulose at a high solid content with less energy-consumption.
AB - To date, the energy-intensive production and high-water content severely limits nanocellulose applications on a large scale off-site. In this study, adding water-soluble polysaccharides (PS) to achieve an integrated process of water-redispersible nanocellulose production was well established. The addition of PS, in particular carboxymethylated-galactoglucomannan (cm-GGM), facilitates fibre fibrillation enabling homogenization at a higher solid content at 1.5 wt% compared with around 0.4 wt% for neat fibre. More importantly, the addition of cm-GGM saved 73 % energy in comparison without PS addition. Good water redispersibility of thus-prepared nanocellulose was validated in viewpoints of size distribution, morphology, viscosity and film properties as compared with neat nanocellulose. The tensile strength and optical transmittance of nanocellulose films increased to 116 MPa and 77 % compared to those without PS addition of 62 MPa and 74 %, respectively. Collectively, this study provides a new avenue for large-volume production of redispersible nanocellulose at a high solid content with less energy-consumption.
KW - Fibre-to-fibre interaction, Energy consumption decrease
KW - Nanocellulose
KW - Redispersibility
KW - Water-soluble polysaccharides
KW - Tensile Strength
KW - Water
KW - Polysaccharides
KW - Cellulose
UR - http://www.scopus.com/inward/record.url?scp=85136135979&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2022.119976
DO - 10.1016/j.carbpol.2022.119976
M3 - Article
C2 - 36184128
AN - SCOPUS:85136135979
SN - 0144-8617
VL - 297
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
M1 - 119976
ER -