Expediting the Formation of Cellulose Nanopaper by Heterocoagulation of Oppositely Charged Cellulose Nanofibers 


Vol. 23,  No. 7, pp. 1846-1855, Jul.  2022
10.1007/s12221-022-4087-2


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  Abstract

Cellulose nanopaper has attracted tremendous attention as an alternative to fossil-based flexible substrates. However, the fabrication of nanopaper from cellulose nanofibers (CNFs) is a time-consuming process. Herein, positively charged CNFs (PCNFs) were employed to heterocoagulate negatively charged CNFs (NCNFs) at various PCNF-to-NCNF ratios in order to decrease the formation time of nanopaper. At a PCNF-to-NCNF ratio of 1:1, the formation time was reduced from 98 min to 20 min. Although heterocoagulation increases the roughness of cellulose nanopaper, nanopapers made from a mixture of NCNFs and PCNFs still possess a nanosized network structure and therefore show similar transparency to nanopapers made of pure NCNFs. Compared to the nanopaper made from pure NCNFs, the nanopaper made from the mixture of NCNFs and PCNFs showed reduced tensile strength but improved resistance to deformation. This study provides a practical method for the production of cellulose nanopaper.

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  Cite this article

[IEEE Style]

M. Kang, C. Li, D. Yu, G. Li, Z. Song, H. Wang, W. Liu, "Expediting the Formation of Cellulose Nanopaper by Heterocoagulation of Oppositely Charged Cellulose Nanofibers," Fibers and Polymers, vol. 23, no. 7, pp. 1846-1855, 2022. DOI: 10.1007/s12221-022-4087-2.

[ACM Style]

Meng Kang, Chenglong Li, Dehai Yu, Guodong Li, Zhaoping Song, Huili Wang, and Wenxia Liu. 2022. Expediting the Formation of Cellulose Nanopaper by Heterocoagulation of Oppositely Charged Cellulose Nanofibers. Fibers and Polymers, 23, 7, (2022), 1846-1855. DOI: 10.1007/s12221-022-4087-2.

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pISSN : 1229 - 9197
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