Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/74764
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Campo DC | Valor | Idioma |
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dc.contributor.author | Abbass, Ali | por |
dc.contributor.author | Paiva, Maria C. | por |
dc.contributor.author | Oliveira, Daniel V. | por |
dc.contributor.author | Lourenço, Paulo B. | por |
dc.contributor.author | Fangueiro, Raúl | por |
dc.date.accessioned | 2021-11-23T10:02:57Z | - |
dc.date.available | 2021-11-23T10:02:57Z | - |
dc.date.issued | 2021-09-01 | - |
dc.identifier.citation | Abbass, A.; Paiva, M.C.; Oliveira, D.V.; Lourenço, P.B.; Fangueiro, R. Insight into the Effects of Solvent Treatment of Natural Fibers Prior to Structural Composite Casting: Chemical, Physical and Mechanical Evaluation. Fibers 2021, 9, 54. https://doi.org/10.3390/fib9090054 | por |
dc.identifier.uri | https://hdl.handle.net/1822/74764 | - |
dc.description.abstract | This paper presents an optimized washing protocol for as-received natural fibers, prior to large-scale composite manufacturing, for the structural strengthening of historic masonry. The aim was to achieve a simple protocol for standard cleaning of fiber surfaces from low molecular weight constituents that may be detrimental towards interfacial strength without damaging the fibers. The proposed procedure employs the application of the solvent sequence: ethanol, acetone, hexane, with optimized incubation times and stirring conditions. Additionally, this procedure may change the surface of the fiber, thereby enhancing the durability of the fiber-matrix interface. The washing protocol resulted in an increase of tensile strength by 56%, 52% and 22% for flax, hemp and sisal fibers, respectively, as compared to the corresponding non-washed fibers, without loss of elongation. The static contact angle measurements confirmed exposure of a higher fraction of the hydrophilic crystalline cellulose, with a higher wettability observed after washing protocols. | por |
dc.description.sponsorship | This work was partly financed by the Portuguese Foundation for Science and Technology (FCT/MCTES) through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE) under reference UIDB/04029/2020. IPC acknowledges the support of FCT through National Funds References UIDB/05256/2020 and UIDP/05256/2020. The authors wish to acknowledge FCT for the PhD scholarship granted to the first author (SFRH/BD/144106/2019). | por |
dc.language.iso | eng | por |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) | por |
dc.relation | UIDB/04029/2020 | por |
dc.relation | UIDB/05256/2020 | por |
dc.relation | UIDP/05256/2020 | por |
dc.relation | SFRH/BD/144106/2019 | por |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | Built heritage | por |
dc.subject | Masonry | por |
dc.subject | Natural fibers | por |
dc.subject | NTRM | por |
dc.subject | Surface modification | por |
dc.subject | FTIR | por |
dc.subject | Contact angle | por |
dc.subject | Tensile test | por |
dc.subject | Archimedes | por |
dc.title | Insight into the effects of solvent treatment of natural fibers prior to structural composite casting: chemical, physical and mechanical evaluation | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.mdpi.com/2079-6439/9/9/54 | por |
oaire.citationStartPage | 1 | por |
oaire.citationEndPage | 18 | por |
oaire.citationIssue | 9 | por |
oaire.citationVolume | 9 | por |
dc.date.updated | 2021-09-25T23:33:51Z | - |
dc.identifier.eissn | 2079-6439 | - |
dc.identifier.doi | 10.3390/fib9090054 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Fibers | por |
oaire.version | VoR | por |
Aparece nas coleções: | IPC - Artigos em revistas científicas internacionais com arbitragem ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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fibers-09-00054-v2.pdf | 14,08 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons