期刊
CARBOHYDRATE POLYMERS
卷 314, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2023.120933
关键词
Water- and oil-repellent; Coated paper; Food packaging; Degradation
Due to the environmental and health hazards caused by traditional food packaging materials, paper-based packaging materials have become increasingly popular. This study focused on the fabrication of fluorine-free degradable water- and oil-repellent paper using low-cost bio-based polymers. The coatings made of carboxymethyl cellulose (CMC), collagen fiber (CF), and modified polyvinyl alcohol (MPVA) provided excellent water and oil repellency to the paper. The resulting paper showed excellent water repellency, oil repellency, low air permeability, and strong mechanical properties, making it suitable for food packaging applications.
Due to the increasingly serious environmental and human health hazards brought by traditional food packaging materials, paper-based packaging materials have become increasingly popular among consumers in recent years. Currently, the fabrication of fluorine-free degradable water- and oil-repellent paper using low-cost bio-based polymers by a simple method is a hot subject in the field of food packaging. In this work, we used carboxymethyl cellulose (CMC), collagen fiber (CF), and modified polyvinyl alcohol (MPVA) to create coatings that were impervious to water and oil. The homogeneous mixture of CMC and CF generated electrostatic adsorption to impart excellent oil repellency to the paper. PVA was chemically modified by sodium tetraborate decahydrate, and the MPVA coating imparted excellent water-repellent properties to the paper. Finally, the water- and oil-proof paper showed excellent water repellency (Cobb value: 1.12 g/m(2)), oil repellency (kit rating: 12/12), low air permeability (0.3 mu m/Pa.s), and stronger mechanical properties (4.19 kN/m). This non-fluorinated degradable water- and oil-repellent paper with high barrier properties prepared by a convenient method is expected to be in widespread use in the food packaging field.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据