纳米纤维素
材料科学
极限抗拉强度
纳米纤维
复合材料
纤维素
湿强度
扫描电子显微镜
透气比表面积
基质(水族馆)
背景(考古学)
化学工程
图层(电子)
古生物学
工程类
地质学
海洋学
生物
作者
Waldemar Perdoch,Zhuoran Cao,Patryk Florczak,Roksana Markiewicz,Marcin Jarek,Konrad Olejnik,Bartłomiej Mazela
出处
期刊:Molecules
[MDPI AG]
日期:2022-07-22
卷期号:27 (15): 4696-4696
被引量:9
标识
DOI:10.3390/molecules27154696
摘要
This article describes how crystalline or fibrous nanocellulose influences the mechanical properties of paper substrate. In this context, we used commercially available cellulose nanocrystals, mechanically prepared cellulose nanofibers dispersed in water or ethanol, and carboxy cellulose nanofibers. Selective reinforcement of the paper treated with the nanocellulose samples mentioned above was observed. The change in the fibre structure was assessed using scanning electron microscopy, roentgenography, and spectroscopy techniques. In addition, the effect of nanocellulose coating on physical properties was evaluated, specifically tensile index, elongation coefficient, Elmendorf tear resistance, Bendtsen surface roughness, Bendtsen air permeability, and bending strength. It can be concluded that the observed decrease in the strength properties of the paper after applying some NC compositions is due to the loss of potential disturbances in hydrogen bonds between the nanocellulose dispersed in ethanol and the paper substrate. On the other hand, significantly increased strength was observed in the case of paper reinforced with nanocellulose functionalized with carboxyl groups.
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