Author:
Hult Eva-Lena,Koivu Klaus,Asikkala Janne,Ropponen Jarmo,Wrigstedt Pauli,Sipilä Jussi,Poppius-Levlin Kristiina
Abstract
Abstract
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.
Reference54 articles.
1. Extracting value - added products before pulping : hemicellulosic ethanol fromEucalyptus globuluswood;Rodríguez;Holzforschung,2012
2. Sustainable films and coatings from hemicelluloses a;Hansen;review Biomacromolecules,2008
3. tetramethyl dioxaphospholane a reagent for the accurate determination of the uncondensed and condensed phenolic moieties in lignins;Granata;Agric Food Chem,1995
4. Lignin derivatives;Glasser;Holzforschung,1993
5. Recent innovations in barrier technologies for plastic packaging a;Lynge;review Packag Technol Sci,2003
Cited by
40 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献