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05.07.2018 | Original Paper

Enzyme-assisted mechanical production of cellulose nanofibrils: thermal stability

verfasst von: Kun Zhang, Yuehua Zhang, Depeng Yan, Chenyuan Zhang, Shuangxi Nie

Erschienen in: Cellulose | Ausgabe 9/2018

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Abstract

The influence of enzymatic treatment on the thermal stability of cellulose nanofibrils (CNFs) was investigated. The unbleached bagasse pulp was treated with different dosages of xylanase, and samples were taken at different grinding stages. The produced CNF were characterized by Malvern Zetasizer, TEM, ATR-FTIR and XRD, and the thermal stability of the CNF was evaluated using TGA. The mechanism of enzymatic treatment on the thermal stability of CNF was proposed. The results indicated that all the diameters of produced CNF were < 100 nm. The CNF produced from original pulp has higher thermal stability than those from enzymatic-treated pulp, and the thermal stability of CNF was decreased with the increase of enzyme dosage. The practical application of CNF was actually limited by the reduction of pyrolysis sites, so the proper retention of hemicellulose and lignin in the process of preparing CNF contributes to the improvement of the thermal stability.

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Vorheriger Artikel A novel effective approach of nanocrystalline cellulose production: oxidation–hydrolysis strategy

Nächster Artikel Highly transparent chitin nanofiber/gelatin nanocomposite with enhanced mechanical properties

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Titel: Enzyme-assisted mechanical production of cellulose nanofibrils: thermal stability
verfasst von: Kun Zhang
Yuehua Zhang
Depeng Yan
Chenyuan Zhang
Shuangxi Nie
Publikationsdatum: 05.07.2018
Verlag: Springer Netherlands
Erschienen in: Cellulose / Ausgabe 9/2018
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI: https://doi.org/10.1007/s10570-018-1928-7

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