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Utilizing and Valorizing Oat and Barley Straw as an Alternative Source of Lignocellulosic Fibers
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2022 (engelsk)Inngår i: Materials, E-ISSN 1996-1944, Vol. 15, nr 21, artikkel-id 7826Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The transition to sustainable, biodegradable, and recyclable materials requires new sources of cellulose fibers that are already used in large volumes by forest industries. Oat and barley straws provide interesting alternatives to wood fibers in lightweight material applications because of their similar chemical composition. Here we investigate processing and material forming concepts, which would enable strong fiber network structures for various applications. The idea is to apply mild pretreatment processing that could be distributed locally so that the logistics of the raw material collection could be made efficient. The actual material production would then combine foam-forming and hot-pressing operations that allow using all fractions of fiber materials with minimal waste. We aimed to study the technical features of this type of processing on a laboratory scale. The homogeneity of the sheet samples was very much affected by whether the raw material was mechanically refined or not. Straw fibers did not form a bond spontaneously with one another after drying the sheets, but their effective bonding required a subsequent hot pressing operation. The mechanical properties of the formed materials were at a similar level as those of the conventional wood-fiber webs. In addition to the technical aspects of materials, we also discuss the business opportunities and system-level requirements of using straw as an alternative source of lignocellulosic fibers. 

sted, utgiver, år, opplag, sider
2022. Vol. 15, nr 21, artikkel-id 7826
Emneord [en]
bonding, business, cellulose, fiber, foam forming, hot pressing, logistics, material, pretreatment, straw
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Identifikatorer
URN: urn:nbn:se:miun:diva-46533DOI: 10.3390/ma15217826ISI: 000884012500001Scopus ID: 2-s2.0-85141826363OAI: oai:DiVA.org:miun-46533DiVA, id: diva2:1714613
Tilgjengelig fra: 2022-11-30 Laget: 2022-11-30 Sist oppdatert: 2024-07-04bibliografisk kontrollert

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