Grafting nanocellulose with diethylenetriaminepentaacetic acid and chitosan as additive for enhancing recycled OCC pulp fibres
Publication Date
2022-02Journal Title
Cellulose
ISSN
0969-0239
Publisher
Springer Science and Business Media LLC
Volume
29
Issue
3
Pages
2017-2032
Language
en
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Li, A., Xu, D., Zhang, M., Wu, S., Li, Y., Sun, W., Zhou, Y., et al. (2022). Grafting nanocellulose with diethylenetriaminepentaacetic acid and chitosan as additive for enhancing recycled OCC pulp fibres. Cellulose, 29 (3), 2017-2032. https://doi.org/10.1007/s10570-021-04390-9
Abstract
<jats:title>Abstract</jats:title><jats:p>This paper develops a novel paper additive for effectively recycling old corrugated container (OCC) by functionalizing nanocellulose (NC) with diethylenetriaminepentaacetic acid (DTPA) and chitosan (CS), and investigate the reinforcing mechanisms and effect of the developed additive on the physical properties of recycled OCC pulp handsheets. The tensile, tear and burst index, air permeability, tensile energy absorption (TEA), and drainage performance of the recycled OCC handsheets are examined. Fourier transform infrared FTIR) spectroscopy, thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM) are used for the chemical and microstructure characterization of both NC based additives and paper from recycled OCC pulp. The results show that functional groups on the NC based additive, such as carboxyl, amino and hydroxyl groups, can bond with the hydroxyl groups on the recycled OCC fibres to generate a chemical bond. This leads to an increase in the crosslinks and bonding area between the fibres, which increases their tensile strength and improves their recycling rate. SEM shows that the paper with NC based additives had tighter inter-fibre bonds and smaller paper pore structure. Addition of 0.3% NC-DTPA-CS additive results in optimal properties of the recycled OCC paper with an increase by 31.64%, 22.28% and 36.6% of tensile index, tear index, burst index respectively, and the air permeability decreases by 36.92%.</jats:p>
<jats:p><jats:bold>Graphical Abstract</jats:bold></jats:p>
Keywords
Original Research, Nanocellulose (NC), Old corrugated container (OCC), NC-DTPA-CS, Additive, Paper property
Identifiers
s10570-021-04390-9, 4390
External DOI: https://doi.org/10.1007/s10570-021-04390-9
This record's URL: https://www.repository.cam.ac.uk/handle/1810/334230
Rights
Licence:
http://creativecommons.org/licenses/by/4.0/
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