Effect of hemicellulose hydrolysate addition on the dehydration and redispersion characteristic of cellulose nanofibrils
Nanocellulose, owing to its environmentally friendly and unique attributes, is gaining traction in various industries. However, commercialization of nanocellulose faces challenges due to structural alterations during drying process, leading to irreversible aggregation. This study, inspired by wood...
Saved in:
Published in | Carbohydrate polymers Vol. 334; p. 122036 |
---|---|
Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
England
Elsevier Ltd
15.06.2024
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Nanocellulose, owing to its environmentally friendly and unique attributes, is gaining traction in various industries. However, commercialization of nanocellulose faces challenges due to structural alterations during drying process, leading to irreversible aggregation. This study, inspired by wood's natural structure, introduces a cellulose nanofibril (CNF) drying system using hemicellulose hydrolysate (HH) as a capping agent. The addition of only 1 wt% of HH to the CNF suspension not only prevents aggregation among CNFs during dehydration and drying but also dramatically enhances the redispersion rate and dispersion stability of the dried CNFs. The redispersed CNF/HH suspension exhibits physicochemical properties comparable to the original CNF suspension before drying. This confirms that HH inhibits irreversible hydrogen bonding among CNFs, leading to the restoration of the nanostructure during redispersion. Moreover, HH in the CNF suspension after redispersion can be easily removed through a simple water rinsing process, highlighting HH as a highly suitable candidate for preventing aggregation of CNFs.
[Display omitted]
•Hemicellulose hydrolysate (HH) was used as an anti-aggregation agent for CNF drying.•The addition of HH effectively prevented the aggregation of CNFs during the drying.•The added HH dramatically improved the redispersion rate and stability of dried CNFs.•HH was easily removed by washing process with water from the redispersed CNFs. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0144-8617 1879-1344 |
DOI: | 10.1016/j.carbpol.2024.122036 |