Plastic-free, oil- and water-resistant paper for food packing

IF 0.9 4区农林科学 Q3 MATERIALS SCIENCE, PAPER & WOOD

Nordic Pulp & Paper Research Journal Pub Date : 2024-06-24 DOI:10.1515/npprj-2024-0022

Peiyi Li, Xinyao Zhou, Boxing Jian, Miaomiao Zhou, Ruiyan Liu, Bolong Sun, Xinping Li, Yun Wang, Bingyao Zhou

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引用次数: 0

Abstract

Traditional food packaging coated paper is not environmentally friendly, and there have been many studies on oil- and water-resistant paper for food packaging. However, preparing oil- and water-resistant paper that is plastic-free, fluorine-free, and environmentally friendly is still a significant challenge. In this study, oil- and water-resistant paper for food packaging are prepared by layer-by-layer assembly and mixing coating methods. The layer-by-layer assembly coated paper exhibits excellent water resistance (Cobb 60 value of 20.5 g/m2, water contact angle value of 132°). The mixed coated paper not only has good water resistance (Cobb 60 value of 27.1 g/m2, water contact angle value of 131°), but also has excellent oil resistance (kit rating value of 8/12). The oil-resistant and waterproof mechanism of the coated paper is confirmed through scanning electron microscopy. In addition, the mechanical performance and coating adhesion of the mixed coated paper are the best, with an increase in the tensile index of 73.1 %. This study provides a feasible strategy for preparing biodegradable, plastic-free, and fluorine-free food packaging oil- and water-resistant paper, which is beneficial for reducing plastic pollution.

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用于食品包装的无塑料防油防水纸

传统的食品包装铜版纸并不环保，有关食品包装用耐油耐水纸的研究也很多。然而，如何制备无塑料、无氟且环保的耐油耐水纸仍是一项重大挑战。本研究采用逐层组装法和混合涂布法制备了食品包装用耐油耐水纸。逐层组装涂布纸具有优异的耐水性（Cobb 60 值为 20.5 g/m2，水接触角值为 132°）。混合涂布纸不仅具有良好的耐水性（Cobb 60 值为 27.1 g/m2，水接触角值为 131°），还具有出色的耐油性（套件评级值为 8/12）。通过扫描电子显微镜证实了涂布纸的耐油和防水机理。此外，混合涂布纸的机械性能和涂层附着力最好，抗张指数提高了 73.1%。该研究为制备可生物降解、无塑料、无氟的食品包装耐油耐水纸提供了可行的策略，有利于减少塑料污染。

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来源期刊

Nordic Pulp & Paper Research Journal 工程技术-材料科学：纸与木材

CiteScore

2.50

自引率

16.70%

发文量

审稿时长

1 months

期刊介绍： Nordic Pulp & Paper Research Journal (NPPRJ) is a peer-reviewed, international scientific journal covering to-date science and technology research in the areas of wood-based biomass: Pulp and paper: products and processes Wood constituents: characterization and nanotechnologies Bio-refining, recovery and energy issues Utilization of side-streams from pulping processes Novel fibre-based, sustainable and smart materials. The editors and the publisher are committed to high quality standards and rapid handling of the peer review and publication processes. Topics Cutting-edge topics such as, but not limited to, the following: Biorefining, energy issues Wood fibre characterization and nanotechnology Side-streams and new products from wood pulping processes Mechanical pulping Chemical pulping, recovery and bleaching Paper technology Paper chemistry and physics Coating Paper-ink-interactions Recycling Environmental issues.