High?Temperature and Chemically Resistant Foams from Sustainable Nanostructured Protein

Covalently crosslinked protein networks produced from whey nanofibrils (PNFs) are demonstrated to be sustainable high-performance foams that show chemical resistance and mechanical strength, stiffness, toughness on harsh aging at 150 °C. The aged able retain their properties 180 °C for as long 24 h, far exceeding the of most classical petroleum-based thermoplastics. further developed into soft by addition glycerol a plasticizer. improvement in performance with aging, which is equivalent an increase one order magnitude modulus yield confirmed associated (iso)peptide crosslinks. results open way using protein-based foam materials severe/corrosive environments such filtration, thermal insulation, fluid absorption. suggested suitable alternatives porous polymers.