Session 5: Wood-based Foams and Packaging Films
Wednesday, November 4th • 11:00am – 12:30pm
Session Chair: Sudhagar Mani, University of Georgia
Strong, Lightweight Lignin‐based Foams
Ramakrishna Trovagunta, Stephen S. Kelley and Nathalie Lavoine, North Carolina State University
Technical lignin is obtained as a byproduct of the pulping process. Most technical lignins are burned for energy generation in the mills, with only 2% of the total production being used as value-added products. The intrinsic properties offered by lignin e.g. high stiffness, resistance to moisture and fungus, can potentially be exploited for use in packaging foams or insulating materials. However, foams made of lignin alone lack structural integrity and mechanical strength mostly due their low molecular weight and rigid structure.
Attendees will learn how combining lignin with cellulose nanofibrils (CNFs) i.e. nanosized cellulose particles obtained by high-shear mechanical treatments, can create composites useful as foam materials.
Additional Session Presentations:
Lifecycle assessment and techno‐economic analysis of producing lignin‐based carbon‐foam
Kamalakanta Sahoo, USDA‐ Forest Products Laboratory
Life Cycle Assessment (LCA) of Chitosan – CNF Composite Film Manufacturing Processes for Packaging Applications
Prabaharan Ponnusamy, University of Georgia
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