Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/106634
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Silva, Marco P. | - |
dc.contributor.author | Santos, Paulo | - |
dc.contributor.author | Parente, João M. | - |
dc.contributor.author | Valvez, Sara | - |
dc.contributor.author | Reis, Paulo N. B. | - |
dc.contributor.author | Piedade, A. P. | - |
dc.date.accessioned | 2023-04-13T10:13:44Z | - |
dc.date.available | 2023-04-13T10:13:44Z | - |
dc.date.issued | 2020-08-26 | - |
dc.identifier.issn | 2073-4360 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/106634 | - |
dc.description.abstract | This work intends to study the effect of the curing parameters on the mechanical properties of a polyester resin without a complete curing reaction process. For this purpose, cures at room temperature, 40 °C, and 60 °C, and post-cures at 40 °C and 60 °C, with different exposure times, were considered. Three-point bending tests were performed to assess the bending properties and both stress relaxation and creep behavior. The degree of crosslinking was estimated by evaluating the C = C ester bond, by Fourier infrared spectroscopy and complemented with the thermal characterization made by differential scanning calorimetry. The results showed that higher curing temperatures are preferable to methods involving curing and post-curing, which can be confirmed by the higher degree of conversion of unsaturated ester bonds at 60 °C. Compared to the resin cured at room temperature, the bending strength increased by 36.5% at 40 °C and 88.6% at 60 °C. A similar effect was observed for bending stiffness. In terms of stress relaxation and creep strain, the lowest values were obtained for samples cured at 60 °C. | pt |
dc.language.iso | eng | pt |
dc.publisher | MDPI | pt |
dc.relation | Centro-01-0145-FEDER-000017—EMaDeS—Energy, Materials and Sustainable Development | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject | polyester resin | pt |
dc.subject | post-cure | pt |
dc.subject | mechanical properties | pt |
dc.subject | mechanical testing | pt |
dc.title | Effect of Post-Cure on the Static and Viscoelastic Properties of a Polyester Resin | pt |
dc.type | article | - |
degois.publication.firstPage | 1927 | pt |
degois.publication.issue | 9 | pt |
degois.publication.title | Polymers | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.3390/polym12091927 | pt |
degois.publication.volume | 12 | pt |
dc.date.embargo | 2020-08-26 | * |
uc.date.periodoEmbargo | 0 | pt |
item.openairetype | article | - |
item.fulltext | Com Texto completo | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.author.orcid | 0000-0002-1588-0640 | - |
Appears in Collections: | I&D CEMMPRE - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Effect-of-postcure-on-the-static-and-viscoelastic-properties-of-a-polyester-resinPolymers.pdf | 11.63 MB | Adobe PDF | View/Open |
WEB OF SCIENCETM
Citations
6
checked on Oct 2, 2023
Page view(s)
44
checked on Jul 16, 2024
Download(s)
31
checked on Jul 16, 2024
Google ScholarTM
Check
Altmetric
Altmetric
This item is licensed under a Creative Commons License