Protonation Process to Enhance the Water Resistance of Transparent and Hazy Paper
Protonation Process to Enhance the Water Resistance of Transparent and Hazy Paper
复制标题
质子化工艺增强透明纸和雾纸的耐水性
DOI：
10.1021/acssuschemeng.8b02900
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发表时间：
2018-09-01
影响因子：
8.4
通讯作者：
Liu, Yingyao
中科院分区：
文献类型：
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作者：
Hu, Wen;Fang, Zhiqiang;Liu, Yingyao
将随机分布的木纤维网络与羧甲基纤维素钠（CMC-Na）浸渍结合是一种可扩展的制备具有优异力学性能的高透明雾纸（TH）的方法。然而，这种TH纸的耐水性较差，阻碍了它的实际应用。本研究提出了一种易质子化脱盐工艺，通过降低CMC分子链之间的静电斥力，同时加强CMC分子链之间以及CMC- h分子链与水中木纤维之间的物理交联，来消除上述障碍。因此，质子化的TH纸不仅具有增强的耐水性，而且与未经处理的TH纸相比，其光学和机械性能的恶化可以忽略不计。此外，还研究了不同基材（PET薄膜、未经处理的TH纸和质子化的TH纸）的耐水性对喷墨印刷银膜电导率的影响。
Marrying a randomly distributed network of wood fibers with sodium carboxymethyl cellulose (CMC-Na) by impregnation is a scalable method to prepare highly transparent and hazy (TH) paper with superior mechanical properties. However, the poor water resistance of this TH paper is a hindrance for its practical applications. In this study, a facile protonation process along with desalination is proposed to remove the above obstacle by reducing electrostatic repulsion among CMC molecular chains while strengthening the physical cross-linking among CMC molecular chains and also between CMC-H molecular chains and wood fibers in water. Consequently, the protonated TH paper not only presents an enhanced water resistance but also shows a negligible deterioration in optical and mechanical properties compared with the untreated TH paper. Moreover, the influence of the water resistance of various substrates (PET film, untreated TH paper, and protonated TH paper) on the electrical conductivity of inkjet-printed silver n...