Esterified lignin coating as water vapor and oxygen barrier for fiber-based packaging
| Autor: | Jussi Sipilä, Eva-Lena Hult, Jarmo Ropponen, Pauli Wrigstedt, Janne Asikkala, Klaus A. Y. Koivu, Kristiina Poppius-Levlin |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Materials science
engineering.material moisture barrier complex mixtures gas barrier properties oxygen transmission rate (OTR) Biomaterials chemistry.chemical_compound Coating Moisture barrier Lignin Fiber Composite material kraft lignin lignin palmitate Kraft lignin technology industry and agriculture Industrial chemistry food and beverages coating lignin laurate Chemical engineering chemistry Oxygen barrier packaging material engineering Water vapor transmission rate (WVTR) Water vapor lignin utilization |
| Zdroj: | Hult, E-L, Koivu, K, Asikkala, J, Ropponen, J, Wrigstedt, P, Sipilä, J & Poppius-Levlin, K 2013, ' Esterified lignin coating as water vapor and oxygen barrier for fiber-based packaging ', Holzforschung, vol. 67, no. 8, pp. 899-905 . https://doi.org/10.1515/hf-2012-0214 |
| ISSN: | 1437-434X 0018-3830 |
| DOI: | 10.1515/hf-2012-0214 |
| Popis: | Lignin, esterified with palmitic and lauric acid chloride, has been studied for the application as coating on fiber-based packaging material. The aim was to improve the barrier properties against water vapor and oxygen of paperboard. The esterification was followed by Fourier transform infrared spectroscopy, 31P nuclear magnetic resonance spectroscopy, and gel permeation chromatography measurements. The lignin esters were applied on paperboard and formed a continuous film. The moisture barrier property of the coated paperboards was characterized by the water vapor transmission rate (WVTR). A significant decrease in WVTR was observed, for example, 40 g m-2 (for 24 h) for a paperboard coated with 10.4 g m-2 hardwood kraft lignin palmitate. The contact angle of water on the lignin ester coatings was high and stable. For all paperboard samples coated with lignin esters, a significant decrease in oxygen transmission rate was observed. Accordingly, lignin palmitate and laurate have a high potential as a barrier materials in packaging applications. |
| Databáze: | OpenAIRE |
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