Modelling the mechanical behaviour of biodegradable foams - from physical fundamentals to applications

Starch Protective Loose-Fill Foams

“…The high foam density and cost of the materials, however, have somewhat restricted their widespread applications in packaging. Block foams have been made by combination of extrusion foaming and adhesion technology (Wang et al, 2001). The foams are of lower density and made from low cost wheat flours.…”

Structure and Compression Behavior of Macro-composite Starch Foams

“…Using low-cost wheat flours, the authors have demonstrated a process known as Regular Packaging and Stacking (RPS) technology to produce low density block foams by combination of extrusion foaming and self-adhesion, taking advantage of starch as a natural adhesive when moistened [19,20]. The foams consist of low-density domains reinforced by a network of relatively strong and rigid interfaces and behave as lightweight macro-composites, the properties of which can be manipulated by designing the distribution (i.e., geometry of the interface network) and thickness of the bonding interfaces.…”