Optically transparent pectin/poly(methyl methacrylate) composite with thermal insulation and UV blocking properties based on anisotropic pectin cryogel

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorZou, Fangxinen_US
dc.contributor.authorLi, Hailongen_US
dc.contributor.authorDong, Yujiaoen_US
dc.contributor.authorTewari, Girish C.en_US
dc.contributor.authorVapaavuori, Jaanaen_US
dc.contributor.departmentDepartment of Chemistry and Materials Scienceen
dc.contributor.groupauthorMultifunctional Materials Designen
dc.contributor.organizationAlbaNova University Centeren_US
dc.date.accessioned2022-04-06T06:29:07Z
dc.date.available2022-04-06T06:29:07Z
dc.date.issued2022-07-01en_US
dc.descriptionFunding Information: This work was supported by the Academy of Finland projects “SUBSTAINABLE” (Decision number 334818) and "SUPER-WEAR" (decision number: 322214). We acknowledge BioEconomy and RawMatTERS Finland infrastructure (RAMI) facilities based at Aalto University for measurements. Funding Information: This work was supported by the Academy of Finland projects ?SUBSTAINABLE? (Decision number 334818) and ?SUPER-WEAR? (decision number: 322214). We acknowledge BioEconomy and RawMatTERS Finland infrastructure (RAMI) facilities based at Aalto University for measurements. Publisher Copyright: © 2022 The Authors
dc.description.abstractBioderived polysaccharide-based cryogels prepared via freeze-casting method not only mimic the highly aligned anisotropic pore structure of plant stems but also offer other benefits as compared to biological structures, such as lower density, higher porosity, better permeability, and lower thermal conductivity. However, the application of polysaccharide cryogels to fabricate multifunctional composites is still at its infancy. In this study, a novel class of optically transparent pectin/poly(methyl methacrylate) (PMMA) composite (with optical transmittance as high as 84% and haze of 38% ∼ 73%) combined with thermal insulation outperforming conventional glass has been prepared by using freeze-casted pectin cryogel as template. The final pectin/PMMA has comparable optical transmittance and comparable or lower haze as contrasted with most reported studies on transparent wood/bamboo. Astonishingly, this type of composite has very good UV blocking ability both as compared to glass and nanocellulose-based polymer composites. Overall, the optical properties of these composites can be optimized via controlling the pectin concentration and freeze-casting temperature. Furthermore, pectin/PMMA composites can reach much lower thermal conductivity (0.110 ∼ 0.126 W/(m·K)) than glass. Therefore, these multifunctional pectin/PMMA composites could be beneficial in many applications, such as optically transparent materials, solar cell substrates, and UV protective displays.en
dc.description.versionPeer revieweden
dc.format.extent10
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationZou, F, Li, H, Dong, Y, Tewari, G C & Vapaavuori, J 2022, ' Optically transparent pectin/poly(methyl methacrylate) composite with thermal insulation and UV blocking properties based on anisotropic pectin cryogel ', Chemical Engineering Journal, vol. 439, 135738 . https://doi.org/10.1016/j.cej.2022.135738en
dc.identifier.doi10.1016/j.cej.2022.135738en_US
dc.identifier.issn1385-8947
dc.identifier.otherPURE UUID: 96101763-cf9f-41a2-87f4-6d1ef2947698en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/96101763-cf9f-41a2-87f4-6d1ef2947698en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85126573054&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/81273966/CHEM_Zou_et_al_Optically_transparent_pectin_2022_Chemical_Engineering_Journal.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/113877
dc.identifier.urnURN:NBN:fi:aalto-202204062753
dc.language.isoenen
dc.publisherElsevier Science
dc.relation.ispartofseriesChemical Engineering Journalen
dc.relation.ispartofseriesVolume 439en
dc.rightsopenAccessen
dc.subject.keywordBiocompositeen_US
dc.subject.keywordOptically transparenten_US
dc.subject.keywordPectin cryogelen_US
dc.subject.keywordThermal insulationen_US
dc.subject.keywordUltraviolet blockingen_US
dc.titleOptically transparent pectin/poly(methyl methacrylate) composite with thermal insulation and UV blocking properties based on anisotropic pectin cryogelen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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