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| Research Progress on the Water Vapor Barrier Properties of Paper-based Packaging Materials Coated by Polysaccharide Polymers |
| Received:April 24, 2021 |
| DOI：10.11981/j.issn.1000-6842.2021.04.76 |
| Key Words:paper-based packaging material;polysaccharide polymer;water vapor barrier;chemical modification;nanofillers |
| Fund Project:国家自然科学基金青年科学基金项目（项目号32001276）。 |
| Author Name | Affiliation | Postcode | | LIU Xiaofei* | China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 | 100102 | | ZHANG Xue | China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 | 100102 | | CHENG Yun | China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 | 100102 | | ZHANG Hongjie | China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 | 100102 |
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| Abstract: |
| Paper-based packaging materials have high water vapor permeability in humid environment， which greatly limits their wide application in food packaging areas. Paper-based packaging materials coated by polysaccharide polymers fully utilize the film-forming property and biocompatibility of polysaccharide polymers and the strength properties of lignocellulosic fiber materials， which possess application potentials in high-barrier materials for water vapor. In this study， the physicochemical properties of four kinds of polysaccharide polymers （cellulose， starch， chitosan， and alginate） were introduced. The structural characteristics of polysaccharide polymers and its disadvantages in water vapor barrier were analyzed in terms of properties （polar or nonpolar） of small mass transfer molecule. The research progress of polysaccharide polymer-based composite coating improving water vapor barrier properties of materials through chemical modification （esterification， etherification， grafting， and cross-linking， etc.） and mixing with organic/inorganic nano-fillers （cellulose nanocrystals， nanoclay， and nanometal oxide， etc.） were accentuated. The research direction and development trend of polysaccharide polymer paper-based packaging materials were proposed. |
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