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Composite material of PDMS with interchangeable transmittance: study of optical, mechanical properties and wettability

2021Journal article Open access
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dc.contributor.authorSales, Flaminio
dc.contributor.authorSouza, Andrews
dc.contributor.authorAriati, Ronaldo
dc.contributor.authorNoronha, Verônica Teixeira
dc.contributor.authorGiovanetti, Elder Gulick
dc.contributor.authorLima, Rui A.
dc.contributor.authorRibeiro, J.E.
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2021-11-23T12:12:41Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2021-11-23T12:12:41Z
dc.date.issued2021
dc.description.abstractPolydimethylsiloxane (PDMS) is a polymer that has attracted the attention of researchers due to its unique properties such as transparency, biocompatibility, high flexibility, and physical and chemical stability. In addition, PDMS modification and combination with other materials can expand its range of applications. For instance, the ability to perform superhydrophobic coating allows for the manufacture of lenses. However, many of these processes are complex and expensive. One of the most promising modifications, which consists of the development of an interchangeable coating, capable of changing its optical characteristics according to some stimuli, has been underexplored. Thus, we report an experimental study of the mechanical and optical properties and wettability of pure PDMS and of two PDMS composites with the addition of 1% paraffin or beeswax using a gravity casting process. The composites’ tensile strength and hardness were lower when compared with pure PDMS. However, the contact angle was increased, reaching the highest values when using the paraffin additive. Additionally, these composites have shown interesting results for the spectrophotometry tests, i.e., the material changed its optical characteristics when heated, going from opaque at room temperature to transparent, with transmittance around 75%, at 70 °C. As a result, these materials have great potential for use in smart devices, such as sensors, due to its ability to change its transparency at high temperatures.en_EN
dc.description.sponsorshipThis research was partially funded by Portuguese national funds of FCT/MCTES (PIDDAC) through the base funding from the following research units: UIDB/00690/2020 (CIMO) and UIDB/04077/2020 (MEtRICs). The authors are also grateful for the funding of FCT through the projects NORTE-01-0145-FEDER-029394, NORTE-01-0145-FEDER-030171, funded by COMPETE2020, NORTE2020, PORTUGAL2020, and FEDER.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationSales, Flaminio; Souza, Andrews; Ariati, Ronaldo; Noronha, Verônica; Giovanetti, Elder; Lima, Rui; Ribeiro, João (2021). Composite material of PDMS with interchangeable transmittance: Study of optical, mechanical properties and wettability. Journal of Composites Science. ISSN 2504-477X. 5:4, p. 1-13en_EN
dc.identifier.doi10.3390/jcs5040110en_EN
dc.identifier.issn2504-477X
dc.identifier.urihttp://hdl.handle.net/10198/24366
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.relationMountain Research Center
dc.relationMechanical Engineering and Resource Sustainability Center
dc.subjectBeeswaxen_EN
dc.subjectInterchangeable transparencyen_EN
dc.subjectParaffinen_EN
dc.subjectPDMS compositesen_EN
dc.subjectPolydimethylsiloxane (PDMS)en_EN
dc.titleComposite material of PDMS with interchangeable transmittance: study of optical, mechanical properties and wettabilityen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleMechanical Engineering and Resource Sustainability Center
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04077%2F2020/PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameSales
person.familyNameSouza
person.familyNameRibeiro
person.givenNameFlaminio
person.givenNameAndrews
person.givenNameJ.E.
person.identifierR-000-6Y8
person.identifier.ciencia-id671C-9D57-91AA
person.identifier.ciencia-idD81A-5D25-86CD
person.identifier.ciencia-id0F15-FB62-29DB
person.identifier.orcid0000-0003-2042-0830
person.identifier.orcid0000-0001-6300-148X
person.identifier.ridG-3839-2018
person.identifier.scopus-author-id25638652400
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
relation.isAuthorOfPublicationc1f93daf-8bb3-490e-8415-0dd98535f093
relation.isAuthorOfPublicationb9a2c0e7-74fc-424e-bc40-ebf23c4bafbe
relation.isAuthorOfPublicationc90169e6-7889-4270-a096-35b98c75f9f9
relation.isAuthorOfPublication.latestForDiscoveryc90169e6-7889-4270-a096-35b98c75f9f9
relation.isProjectOfPublication29718e93-4989-42bb-bcbc-4daff3870b25
relation.isProjectOfPublication252ef9af-138c-4280-a4fb-260cfd2eed89
relation.isProjectOfPublication.latestForDiscovery252ef9af-138c-4280-a4fb-260cfd2eed89

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