"Production of lignin-containing cellulose nanofibers using deep eutect" by Chaozheng Liu, Mei-Chun Li et al.

Faculty Publications

Title

Production of lignin-containing cellulose nanofibers using deep eutectic solvents for UV-absorbing polymer reinforcement

Authors

Chaozheng Liu, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037 China; School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, USA.
Mei-Chun Li, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037 China. Electronic address: mli@njfu.edu.cn.
Weimin Chen, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037 China.
Runzhou Huang, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037 China.
Shu Hong, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037 China.
Qinglin Wu, School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, USA.
Changtong Mei, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037 China. Electronic address: mei@njfu.edu.cn.

Document Type

Article

Publication Date

10-15-2020

Abstract

Lignin-containing cellulose nanofibers (LCNFs) from energy cane bagasse (ECB), were prepared using microwave assisted deep eutectic solvent (MV-DES) treatment in combination with ultrasonication. The yield of lignocellulose is up to 45.2 % with 81.0 % delignification under the optimal reaction condition (110 ℃, 30 min). The resulting LCNF exhibited a highly entangled network, which was caused by the binder role of lignin between cellulose nanofibers. The addition of LCNFs improved the stability of the polyanionic cellulose (PAC) film-forming suspension, which was confirmed by the increased zeta potential and viscosity values. The LCNF / PAC films showed tunable mechanical and UV-resistant properties, depending on the amount and type of LCNFs. PAC films with the addition of 5 % LCNFs (PEF-5 %) showed good mechanical properties (a tensile strength of 55.8 MPa with a 26.3 % strain to break) and high UV protection ability (a UV-transmittance of 2.9 %).

Publication Source (Journal or Book title)

Carbohydrate polymers

First Page

116548

Recommended Citation

Liu, C., Li, M., Chen, W., Huang, R., Hong, S., Wu, Q., & Mei, C. (2020). Production of lignin-containing cellulose nanofibers using deep eutectic solvents for UV-absorbing polymer reinforcement. Carbohydrate polymers, 246, 116548. https://doi.org/10.1016/j.carbpol.2020.116548

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