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Mechanical and optical properties assessment of an innovative PDMS/beeswax composite for a wide range of applications

2024Journal article Unknown
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dc.contributor.authorAriati, Ronaldo
dc.contributor.authorSouza, Andrews
dc.contributor.authorSouza, Maria S.
dc.contributor.authorZille, Andrea
dc.contributor.authorSoares, Delfim
dc.contributor.authorLima, Rui A.
dc.contributor.authorRibeiro, J.E.
dc.date.accessioned2024-10-16T15:02:33Z
dc.date.available2024-10-16T15:02:33Z
dc.date.issued2024
dc.description.abstractPolydimethylsiloxane (PDMS) is an elastomer that has received primary attention from researchers due to its excellent physical, chemical, and thermal properties, together with biocompatibility and high flexibility properties. Another material that has been receiving attention is beeswax because it is a natural raw material, extremely ductile, and biodegradable, with peculiar hydrophobic properties. These materials are applied in hydrophobic coatings, clear films for foods, and films with controllable transparency. However, there is no study with a wide range of mechanical, optical, and wettability tests, and with various proportions of beeswax reported to date. Thus, we report an experimental study of these properties of pure PDMS with the addition of beeswax and manufactured in a multifunctional vacuum chamber. In this study, we report in a tensile test a 37% increase in deformation of a sample containing 1% beeswax (BW1%) when compared to pure PDMS (BW0%). The Shore A hardness test revealed a 27% increase in the BW8% sample compared to BW0%. In the optical test, the samples were subjected to a temperature of 80 ◦C and the BW1% sample increased 30% in transmittance when compared to room temperature making it as transparent as BW0% in the visible region. The thermogravimetric analysis showed thermal stability of the BW8% composite up to a temperature of 200 ◦C. The dynamic mechanical analysis test revealed a 100% increase in the storage modulus of the BW8% composite. Finally, in the wettability test, the composite BW8% presented a contact angle with water of 145◦. As a result of this wide range of tests, it is possible to increase the hydrophobic properties of PDMS with beeswax and the composite has great potential for application in smart devices, food and medicines packaging films, and films with controllable transparency, water-repellent surfaces, and anti-corrosive coatings.pt_PT
dc.description.sponsorshipFinancial support was provided by Portugal’s national funding FCT/MCTES (PIDDAC) to Centro de Investigação de Montanha (CIMO) (UIDB/00690/2020 and UIDP/00690/2020), 2C2T (UID/CTM/00264/2021) and SusTEC (LA/P/0007/2020). Additionally, this work was partially supported by Portuguese FCT, under the reference projects UIDB/04077/2020, UIDP/04077/2020, UIDB/00532/2020, UIDB/04436/2020 and LA/P/0045/2020 (ALiCE). This research was also partially funded by EXPL2021CIMO_01, EXPL/EMEEME/0732/2021, 2022.06207.PTDC (https://doi.org/10.5449/2022.06207.PTDC) and PTDC/EEI-EEE/2846/2021 (https://doi.org/10.54499/PTDC/EEI-EEE/2846/2021) and project ARCHKNIT (POCI-01-0247-FEDER-039733) financed by FCT, FEDER, and POCI of Portugal (2020). Andrews Souza was supported by the doctoral Grant 2021.07961.BD financed by the Portuguese Foundation for Science and Technology (FCT).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAriati, Ronaldo; Souza, Andrews; Souza, Maria; Zille, Andrea; Soares, Delfim; Lima, Rui; Ribeiro, João (2024). Mechanical and optical properties assessment of an innovative PDMS/beeswax composite for a wide range of applications. Journal of the Mechanical Behavior of Biomedical Materials. ISSN 1751-6161. 160, p. 1-12pt_PT
dc.identifier.doi10.1016/j.jmbbm.2024.106716pt_PT
dc.identifier.issn1751-6161
dc.identifier.urihttp://hdl.handle.net/10198/30441
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationMountain Research Center
dc.relationMountain Research Center
dc.relationMechanical Engineering and Resource Sustainability Center
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
dc.relationMechanical Engineering and Resource Sustainability Center
dc.relationTransport Phenomena Research Center
dc.relationMicroelectromechanical Systems Research Unit
dc.relationALICE - Associate Laboratory in Chemical Engineering
dc.relationMultiplexed micro(bio)sensors array integrated into an organ-on-a-chip device for assessing cancer NANOtherapy
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPolydimethylsiloxane (PDMS)pt_PT
dc.subjectBeeswaxpt_PT
dc.subjectMechanical propertiespt_PT
dc.subjectOptical propertiespt_PT
dc.subjectWettabilitypt_PT
dc.subjectBiocompatibilitypt_PT
dc.subjectBiodegradablept_PT
dc.titleMechanical and optical properties assessment of an innovative PDMS/beeswax composite for a wide range of applicationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleMountain Research Center
oaire.awardTitleMechanical Engineering and Resource Sustainability Center
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
oaire.awardTitleMechanical Engineering and Resource Sustainability Center
oaire.awardTitleTransport Phenomena Research Center
oaire.awardTitleMicroelectromechanical Systems Research Unit
oaire.awardTitleALICE - Associate Laboratory in Chemical Engineering
oaire.awardTitleMultiplexed micro(bio)sensors array integrated into an organ-on-a-chip device for assessing cancer NANOtherapy
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso de Projetos de I&D em Todos os Domínios Científicos - 2022/2022.06207.PTDC/PT
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oaire.citation.endPage12pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of the Mechanical Behavior of Biomedical Materialspt_PT
oaire.citation.volume160pt_PT
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oaire.fundingStreamConcurso de Projetos de I&D em Todos os Domínios Científicos - 2022
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person.familyNameSouza
person.familyNameRibeiro
person.givenNameAndrews
person.givenNameJ.E.
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