均质化(气候)
材料科学
木质素
纳米颗粒
复合材料
剪切(地质)
化学工程
纳米技术
化学
有机化学
工程类
生物多样性
生态学
生物
作者
Xiaoqian Gai,Chao Liu,Zhaochuan Yu,Yu Li,Yuting Wang,Chao Deng,Haiying Wei,Yuqian Liu,Huining Xiao
出处
期刊:Resources chemicals and materials
[Elsevier]
日期:2024-06-16
卷期号:3 (3): 167-174
标识
DOI:10.1016/j.recm.2024.06.002
摘要
Paper-based materials made from cellulose have been sought after as a sustainable and inexpensive packaging option. However, the porous structure and high hydrophilicity of paper-based materials result in inadequate water and oil repellency, as well as a limited water vapor barrier. In this work, lignin nanoparticles (LNPs) were prepared using a high-speed homogenizer, and subsequently coated on base paper along with cationic starch to enhance its multi-barrier performance to facilitate the packaging application. The LNPs obtained through such a facile process formed stable colloidal dispersion in water, which exhibited excellent interfacial compatibility with cationic starch. During the coating process, a highly adhesive emulsion consisting of cationic starch and LNPs were coated on the surface of base paper, imparting good hydrophobic properties to the paper. The resulting paper material exhibited good water resistance (Cobb value of 37.5 g m−2), high oil resistance (Kit rating 9) and tensile strength (48.93 MPa). The reduction in water vapor transmission rate (WVTR) exceeds sixfold. This study provides a new avenue for the application of lignin in high-barrier, fluorine-free, water-and oil-resistant packaging materials.
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