Stiffening of biopolymer aerogel networks upon wetting: a model-based study

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dc.contributor.authorRege, Ameya
dc.contributor.authorRatke, Lorenz
dc.contributor.authorKülcü, İsmail Doğan
dc.contributor.authorGurikov, Pavel
dc.date.accessioned2021-01-08T21:51:20Z
dc.date.available2021-01-08T21:51:20Z
dc.date.issued2020
dc.departmentTAÜ, Mühendislik Fakültesi, Makine Mühendisliği Bölümüen_US
dc.descriptionKulcu, Ismail Dogan/0000-0001-5431-7802; Rege, Ameya/0000-0001-9564-5482en_US
dc.descriptionWOS:000527022700017en_US
dc.description.abstractThe mechanism behind the stiffening effect observed in the stress-strain response of alginate-starch aerogels upon being exposed to wetting is investigated in this paper, via a physically motivated model approach. A network decomposition concept is introduced, whereby the highly nanoporous network is decomposed into a swollen aerogel network and a hydrogel-like network. The aerogel network is modeled by considering idealized square-shaped microcells of varying sizes. An attempt is made to explain the stiffening of the network, upon wetting, based on changes in the fibril characteristics of the aerogel network upon swelling and formation of a hydrogel-like phase in the microporous region. In this first approach, the aerogel network is described based on a micro-mechanical model, while the hydrogel-like network is described using a phenomenological one. The results of the proposed model idea are in very good agreement with the experimental data of alginate-starch aerogels under different degrees of wetting.
dc.identifier.doi10.1016/j.jnoncrysol.2019.119859
dc.identifier.issn0022-3093
dc.identifier.issn1873-4812
dc.identifier.scopus2-s2.0-85076860301
dc.identifier.scopusqualityQ2
dc.identifier.urihttp://doi.org/10.1016/j.jnoncrysol.2019.119859
dc.identifier.urihttps://hdl.handle.net/20.500.12846/157
dc.identifier.volume531en_US
dc.identifier.wosWOS:000527022700017
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorKülcü, İsmail Doğan
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal Of Non-Crystalline Solids
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBiopolymeren_US
dc.subjectWettingen_US
dc.subjectAerogelen_US
dc.subjectHydrogelen_US
dc.subjectModelen_US
dc.titleStiffening of biopolymer aerogel networks upon wetting: a model-based study
dc.typeArticle

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