Hydrophobized lignin nanoparticle-stabilized Pickering foams : building blocks for sustainable lightweight porous materials

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorZou, Taoen_US
dc.contributor.authorKimiaei, Erfanen_US
dc.contributor.authorMadani, Zahraen_US
dc.contributor.authorKaraaslan, Muzaffer A.en_US
dc.contributor.authorVapaavuori, Jaanaen_US
dc.contributor.authorFoster, Johanen_US
dc.contributor.authorRenneckar, Scotten_US
dc.contributor.authorÖsterberg, Monikaen_US
dc.contributor.departmentDepartment of Bioproducts and Biosystemsen
dc.contributor.departmentDepartment of Chemistry and Materials Scienceen
dc.contributor.groupauthorBioproduct Chemistryen
dc.contributor.groupauthorMultifunctional Materials Designen
dc.contributor.organizationUniversity of British Columbiaen_US
dc.date.accessioned2024-08-21T07:42:38Z
dc.date.available2024-08-21T07:42:38Z
dc.date.issued2024-07-21en_US
dc.descriptionPublisher Copyright: © 2024 RSC.
dc.description.abstractPickering particles play an essential role in stabilizing Pickering foams that can be utilized as templates for making lightweight porous materials for thermal insulation purposes. With the shift from petroleum to renewable-source-derived materials, particles synthesized from biomass are emerging but are typically too hydrophilic to function as Pickering particles in foams. Here, we report the hydrophobization of lignin nanoparticles (LNPs) by adsorption of an oppositely charged surfactant for air-in-water Pickering foam stabilization. The surface tension and complex viscoelasticity of the aqueous dispersions were tunable by varying the concentration of LNPs and the adsorption ratio of hexadecyltrimethylammonium bromide (CTAB) onto LNPs, which were systematically studied with the pendant drop technique (DPT). Under the optimum conditions, the achieved air-in-water Pickering foams were remarkably stable against coalescence and coarsening, i.e., the bubble size distribution remained unchanged over 30 days. We further utilized the Pickering foams as templates for making dry lightweight composite foams with the introduction of cellulose nanofibrils (CNFs). The closed-cell composite foams, with lignin as the major component, exhibited good thermal insulation properties and mechanical properties that were comparable to commercial rigid polyurethane (PU) foams. We envision that the renewable Pickering particles could find applications in many other areas beyond the templates for porous materials such as enhanced oil recovery.en
dc.description.versionPeer revieweden
dc.format.extent11
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationZou, T, Kimiaei, E, Madani, Z, Karaaslan, M A, Vapaavuori, J, Foster, J, Renneckar, S & Österberg, M 2024, ' Hydrophobized lignin nanoparticle-stabilized Pickering foams : building blocks for sustainable lightweight porous materials ', Materials Advances, vol. 5, no. 14, pp. 5802-5812 . https://doi.org/10.1039/d4ma00295den
dc.identifier.doi10.1039/d4ma00295den_US
dc.identifier.issn2633-5409
dc.identifier.otherPURE UUID: e2aa5a52-7d53-4daf-b94c-4b3e03e3211een_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/e2aa5a52-7d53-4daf-b94c-4b3e03e3211een_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85196040099&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/153928127/CHEM_Zou_et_al_Hydrophobized_lignin_2024_Materials_Advances.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/130011
dc.identifier.urnURN:NBN:fi:aalto-202408215574
dc.language.isoenen
dc.publisherRoyal Society of Chemistry
dc.relation.ispartofseriesMaterials Advances
dc.relation.ispartofseriesVolume 5, issue 14, pp. 5802-5812
dc.rightsopenAccessen
dc.titleHydrophobized lignin nanoparticle-stabilized Pickering foams : building blocks for sustainable lightweight porous materialsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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