Enzyme-assisted mechanical production of cellulose nanofibrils: thermal stability
Enzyme-assisted mechanical production of cellulose nanofibrils: thermal stability
复制标题
酶辅助机械生产纤维素纳米原纤维：热稳定性
DOI：
10.1007/s10570-018-1928-7
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发表时间：
2018-07
期刊：
影响因子：
5.7
通讯作者：
Nie Shuangxi
中科院分区：
文献类型：
--
作者：
Zhang Kun;Zhang Yuehua;Yan Depeng;Zhang Chenyuan;Nie Shuangxi
摘要研究了酶处理对纤维素纳米原纤维热稳定性的影响。采用不同剂量的木聚糖酶对未漂白甘蔗渣浆进行处理，并在不同的研磨阶段取样。采用Malvern Zetasizer、TEM、ATR-FTIR和XRD对制备的CNF进行了表征，并用TGA对其热稳定性进行了评价。提出了酶处理对CNF热稳定性影响的机理。结果表明，制备的CNF直径均小于100 nm。原浆制备的CNF的热稳定性高于经酶处理的CNF，但随着酶用量的增加，CNF的热稳定性降低。CNF的实际应用实际上受到热解位点减少的限制，因此在制备CNF过程中适当保留半纤维素和木质素有助于提高其热稳定性。图形抽象
AbstractThe 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.Graphical abstract
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DOI：
--
发表时间：
2010-09
期刊：
--
影响因子：
--
作者：
Salim Khouri
通讯作者：
Salim Khouri
影响因子：
6
作者：
Zhu Guangyong;X. Zhu;Zuobing Xiao;Fengping Yi
通讯作者：
Zhu Guangyong;X. Zhu;Zuobing Xiao;Fengping Yi
影响因子：
15
作者：
Nishiyama, Y;Sugiyama, J;Langan, P
通讯作者：
Langan, P
影响因子：
11.4
作者：
Shen, D. K.;Gu, S.
通讯作者：
Gu, S.
影响因子：
11.2
作者：
Kumar, V;Yang, TR
通讯作者：
Yang, TR