Facile fabrication of lignin containing cellulose films using water as green solvent

[Display omitted] •Film fabrication used water as green solvent.•Crosslinking process benefits the structural compatibility.•Intermolecular hydrogen bonds improve film tensile strength (62.68 MPa).•SLS addition benefits antibacterial performance. Sodium lignin sulfonate (SLS) containing α-cellulose...

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Bibliographic Details
Published in:European polymer journal 2022-04, Vol.168, p.111097, Article 111097
Main Authors: Lu, Xinyu, Que, Han, Gu, Xiaoli
Format: Article
Language:English
Subjects:
Cellulose
Crosslinking
Crosslinking polymerization
Hydrogen bonds
Lignin
SLS
Sodium
Solvents
Tensile strength
Thermal resistance
Water treatment
α-cellulose
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Summary:[Display omitted] •Film fabrication used water as green solvent.•Crosslinking process benefits the structural compatibility.•Intermolecular hydrogen bonds improve film tensile strength (62.68 MPa).•SLS addition benefits antibacterial performance. Sodium lignin sulfonate (SLS) containing α-cellulose film with high compatibility was fabricated via crosslinking process using water as green solvent. FTIR analysis showed that intramolecular/intermolecular hydrogen bonds were formed after water treatment. In addition, physicochemical and antibacterial properties were analyzed comprehensively and results presented that the crosslinked film showed stronger tensile strength, higher water and heat resistance as compared to the pure sample. Better UV blocking capacity and antibacterial performance were derived from the addition of SLS. After water treatment, antibacterial performance was deteriorated with the consumption of sulfonate groups to form intermolecular hydrogen bonds.
ISSN:0014-3057
1873-1945
DOI:10.1016/j.eurpolymj.2022.111097