O. Weichold<\/p>\n\n\n\n
European Polymer Congress, 13. Juni 2019<\/strong>, Kreta<\/p>\n\n\n\n Fighting fire with feathers \u2013 transforming natural waste into flame-retardant materials<\/em><\/p>\n\n\n\n ABSTRACT:\n Keratin is a natural fibre protein widely found in the animal kingdom, \nwhere it is the basis of e. g. wool and hair, horns, scales, and \nfeathers. Besides its broad spectrum of mechanical properties, keratin \nis particularly characterized by its poor flammability and even \nself-extinguishing behaviour. Most approaches which use keratin as a \nchemical feedstock require a solubilisation step, and this can be \naccomplished by either alkaline hydrolysis or reduction of the \ndisulphide bridges. We have refined the latter to be more convenient and\n economical, but more importantly to produce two kreatin fractions, \nwhich were both found to be valuable intermediates in producing \nflame-retarding materials. The first fraction consists of water-soluble \nprotein hydrolysates, which can be used as impregnation for particle and\n fibre boards. The second fraction is a gel, which can be transformed \ninto foamed boards. These materials match commercial EPS\/XPS boards in \nterms of their thermal conductivities, but will not ignite or burn when \nsubjected to an open flame. The contribution will present our latest \nresults on the preparation and application of these two fractions.<\/p>","protected":false},"excerpt":{"rendered":" O. Weichold European Polymer Congress, 13. Juni 2019, Kreta Fighting fire with feathers \u2013 transforming natural waste into flame-retardant materials ABSTRACT: Keratin is a natural fibre protein widely found in the animal kingdom, where it is the basis of e. g. wool and hair, horns, scales, and feathers. Besides its broad spectrum of mechanical properties, […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"cybocfi_hide_featured_image":"","footnotes":""},"categories":[12,16],"tags":[],"class_list":["post-2253","post","type-post","status-publish","format-standard","hentry","category-poly-news","category-poly-news2019"],"_links":{"self":[{"href":"https:\/\/www.ibac-cp.rwth-aachen.de\/en\/wp-json\/wp\/v2\/posts\/2253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ibac-cp.rwth-aachen.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ibac-cp.rwth-aachen.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ibac-cp.rwth-aachen.de\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ibac-cp.rwth-aachen.de\/en\/wp-json\/wp\/v2\/comments?post=2253"}],"version-history":[{"count":1,"href":"https:\/\/www.ibac-cp.rwth-aachen.de\/en\/wp-json\/wp\/v2\/posts\/2253\/revisions"}],"predecessor-version":[{"id":2254,"href":"https:\/\/www.ibac-cp.rwth-aachen.de\/en\/wp-json\/wp\/v2\/posts\/2253\/revisions\/2254"}],"wp:attachment":[{"href":"https:\/\/www.ibac-cp.rwth-aachen.de\/en\/wp-json\/wp\/v2\/media?parent=2253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ibac-cp.rwth-aachen.de\/en\/wp-json\/wp\/v2\/categories?post=2253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ibac-cp.rwth-aachen.de\/en\/wp-json\/wp\/v2\/tags?post=2253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}