Effects of multilayered cellulose-based coatings on the barrier properties of paperboard

IF 4.9 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD

Cellulose Pub Date : 2025-02-15 DOI:10.1007/s10570-025-06416-y

Johanna Lyytikäinen, Krista Koljonen, Ville Leminen

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Abstract

Coating a paperboard is the most important finishing process to achieve a good barrier against oxygen, water vapor and grease, which are typically obtained with fossil-based plastics. In this study, three different cellulose-based coating components—methyl nanocellulose (MeNC), microfibrillated cellulose (MFC) and hydrophobically modified ethyl(hydroxyethyl) cellulose (HM-EHEC)—were investigated. One to five coating layers were applied to the paperboard using spray and rod coating. Combinations of different coating components, coat weights, and barrier properties at different temperatures and relative humidities were studied. Scanning electron microscopy, air permeance and contact angle measurements using water and oil were used to characterize the uncoated and coated surfaces. It was shown that the MeNC and MFC layers increased the surface wettability. On contrary, HM-EHEC coating provided surface hydrophobicity, but reduced oil repellence. According to oxygen barrier measurements, HM-EHEC seemed to provide resistance at high humidities. In addition, a coating with a low weight could not close the surface completely and resulted in a poor grease barrier. However, high-weight coatings with MFC and HM-EHEC layers were greaseproof, even at elevated temperature and humidities.

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来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.