Journal
NANOMATERIALS
Volume 11, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/nano11123426
Keywords
lignin-cellulose composite; bagasse; cellulose; lignin; enzymolysis
Categories
Funding
- Guangxi Natural Science Foundation [2018GXNSFAA294074]
- Guangxi Key Laboratory of Clean Pulp & Papermaking, Pollution Control
- Guangxi Natural Fund
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A strong and water-stable lignin-cellulose composite (LCC) was developed using nanocellulose hybrid lignin complex (CHLC), significantly increasing the dry strength and wet strength compared to a typical lignin-free cellulose sheet. The LCC is an eco-friendly and biodegradable alternative to plastic, providing a solution for the mechanical properties' degradation and uncontrolled deformation challenges in cellulose as a replacement for plastic.
The significant challenges in the use of cellulose as a replacement for plastic are its mechanical properties' degradation and uncontrolled deformation during the rewetting process. Herein, inspired by the reinforcement of cellulose by lignin in natural plant tissue, a strong and water-stable lignin-cellulose composite (LCC) was developed. A nanocellulose hybrid lignin complex (CHLC) created from bagasse residue after enzymatic hydrolysis was added into a pulp of bleached fibre extracted from pine to produce a lignin-cellulose sheet. The lignin as a water-stable reinforcing matrix, via the hydrogen bonding of the nanocellulose in the CHLC with the fibre was efficiently introduced onto the fibres and the fibre network voids. Compared with a typical lignin-free cellulose sheet, the dry strength and wet strength of the LCC were 218% and 2233% higher, respectively. The developed LCC is an eco-friendly and biodegradable alternative to plastic.
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