Improving the extensibility of thermoformable web structures with polymer dispersions
| Autor: | Kouko, Jarmo, Setälä, Harri, Ropponen, Jarmo, Retulainen, Elias |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Kouko, J, Setälä, H, Ropponen, J & Retulainen, E 2016, Improving the extensibility of thermoformable web structures with polymer dispersions . in Progress in Paper Physics Seminar 2016 : Conference proceedings . Technische Universität Darmstadt, pp. 16-22, Progress in Paper Physics Seminar, PPPS 2016, Darmstadt, Germany, 22/08/16 . < http://tuprints.ulb.tu-darmstadt.de/id/eprint/5636 > |
| Popis: | Paper-based packaging materials as renewable materials ha packaging. The objective of this study was to produce a thermoformable network composed of cellulosic fibers and bio-based thermoplastic polymers with high formability. Bleached softwood kraft pulp was mechanically treated in two stages using high and low consistency refining sequentially. Chemical treatment using oxyalkylation method was applied to modify the fiber material, especially the fiber surface and its compatibility with polymer dispersions. This study presents laboratory scale manufacturing methods for compositions that improved the extensibility of paper. The extensibility of the paper was measured with a novel experimental method that simulated the process conditions in thermoforming. The results showed that by choosing the pulp treatment method, the chemical composition and the thermoforming of the paper is not a direct function of the extensibility of the applied polymer. |
| Databáze: | OpenAIRE |
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