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Open AccessArticle

Improved Dispersion of Bacterial Cellulose Fibers for the Reinforcement of Paper Made from Recycled Fibers

1
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
2
Nanjing High Tech University Biological Technology Research Institute Co., Ltd., Nanjing 211899, China
3
Guangdong Engineering Research Center for Green Fine Chemicals, Guangzhou 510640, China
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(1), 58; https://doi.org/10.3390/nano9010058
Received: 28 November 2018 / Revised: 22 December 2018 / Accepted: 29 December 2018 / Published: 4 January 2019
(This article belongs to the Special Issue Nanocelluloses: Synthesis, Modification and Applications)
Bacterial cellulose (BC) can be used to improve the physical properties of paper. However, previous studies have showed that the effectiveness of this improvement is impaired by the agglomeration of the disintegrated BC fibers. Effective dispersion of BC fibers is important to their reinforcing effects to paper products, especially those made of recycled fibers. In this study, carboxymethyl cellulose, xylan, glucomannan, cationized starch, and polyethylene oxide were used to improve the dispersion of BC fibers. With dispersed BC fibers, the paper made of recycled fiber showed improved dry tensile strength. The best improvement in dry tensile index was 4.2 N·m/g or 12.7% up, which was obtained by adding BC fibers dispersed with glucomannan. Glucomannan had the highest adsorption onto BC fibers, i.e., 750 mg/g at 1000 mg/L concentration, leading to the best colloidal stability of BC fiber suspension that had no aggregation in 50 min at 0.1 weight ratio of glucomannan to BC. TEMPO-mediated oxidation of BC was effective in improving its colloidal stability, but not effective in improving the ability of BC fiber to enhance paper dry tensile index while the wet tensile index was improved from 0.89 N·m/g to 1.59 N·m/g, i.e., ~80% improvement. View Full-Text
Keywords: bacterial cellulose; dispersion; recycled fiber; reinforcement; tensile strength bacterial cellulose; dispersion; recycled fiber; reinforcement; tensile strength
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MDPI and ACS Style

Xiang, Z.; Zhang, J.; Liu, Q.; Chen, Y.; Li, J.; Lu, F. Improved Dispersion of Bacterial Cellulose Fibers for the Reinforcement of Paper Made from Recycled Fibers. Nanomaterials 2019, 9, 58. https://doi.org/10.3390/nano9010058

AMA Style

Xiang Z, Zhang J, Liu Q, Chen Y, Li J, Lu F. Improved Dispersion of Bacterial Cellulose Fibers for the Reinforcement of Paper Made from Recycled Fibers. Nanomaterials. 2019; 9(1):58. https://doi.org/10.3390/nano9010058

Chicago/Turabian Style

Xiang, Zhouyang; Zhang, Jie; Liu, Qingguo; Chen, Yong; Li, Jun; Lu, Fachuang. 2019. "Improved Dispersion of Bacterial Cellulose Fibers for the Reinforcement of Paper Made from Recycled Fibers" Nanomaterials 9, no. 1: 58. https://doi.org/10.3390/nano9010058

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