Development of biomass-based packaging with interface control for better adhesion and barrier properties
발표자
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초록
내용
The growing environmental concerns associated with petroleum-based polymer usage have led researchers to focus on biomass-based biodegradable polymers as sustainable alternatives. Polylactic acid (PLA) has garnered significant attention due to its favorable mechanical properties and ease of processing. However, its application in packaging films is limited due to its inadequate barrier properties concerning oxygen transmission rate (OTR) and water vapor transmission ratio (WVTR). In this study, we propose a novel approach to enhance the barrier properties of PLA films by incorporating a composite film consisting of cellulose nanofibers (CNFs) and Polyvinyl alcohol (PVA). Furthermore, we address the issue of low adhesion between PLA and the barrier film by introducing a specially designed biomass-based amphiphilic polymer layer. The resulting PLA packaging film exhibits significantly improved barrier properties and enhanced adhesion, rendering it a promising solution for sustainable packaging applications.