{"title":"Recyclable oil resistant paper with enhanced water resistance based on alkyl ketene dimer modified sodium alginate","authors":"Liyan Ma, Shuai Liu, Jiahui Shi, Rina Wu, Peng Lu","doi":"10.1515/npprj-2023-0047","DOIUrl":null,"url":null,"abstract":"Abstract Sustainable coatings exhibit potential in enhancing oil resistance of packaging paper. Alkyl ketone dimer (AKD) was used to esterify sodium alginate (SA) to prepare water and oil resistant agent SAD. As SAD was coated on paper, it reduced the surface energy and blocked the fiber pores of paper, thus improving the barrier performance of paper. The oil resistance grade can reach grade 6 at coating amount of 2.13 ± 0.26 g/m 2 , which is qualified for food packaging. The coated paper also showed good barrier to hot castor oil. Resistance to organic solvent and water were also enhanced with initial water contact angle (WCA) increased to 69.2°. Compared with base paper, SAD coated paper had better mechanical properties and more importantly, coated paper can be effectively recycled to achieve green recycling.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"3 4","pages":"0"},"PeriodicalIF":0.9000,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nordic Pulp & Paper Research Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/npprj-2023-0047","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract Sustainable coatings exhibit potential in enhancing oil resistance of packaging paper. Alkyl ketone dimer (AKD) was used to esterify sodium alginate (SA) to prepare water and oil resistant agent SAD. As SAD was coated on paper, it reduced the surface energy and blocked the fiber pores of paper, thus improving the barrier performance of paper. The oil resistance grade can reach grade 6 at coating amount of 2.13 ± 0.26 g/m 2 , which is qualified for food packaging. The coated paper also showed good barrier to hot castor oil. Resistance to organic solvent and water were also enhanced with initial water contact angle (WCA) increased to 69.2°. Compared with base paper, SAD coated paper had better mechanical properties and more importantly, coated paper can be effectively recycled to achieve green recycling.
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.
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