{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T20:20:59Z","timestamp":1778098859459,"version":"3.51.4"},"reference-count":53,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2020,8,26]],"date-time":"2020-08-26T00:00:00Z","timestamp":1598400000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100014717","name":"Programa Operacional Regional do Centro","doi-asserted-by":"publisher","award":["Centro-01-0145-FEDER-000017"],"award-info":[{"award-number":["Centro-01-0145-FEDER-000017"]}],"id":[{"id":"10.13039\/501100014717","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>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 \u00b0C, and 60 \u00b0C, and post-cures at 40 \u00b0C and 60 \u00b0C, 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 \u00b0C. Compared to the resin cured at room temperature, the bending strength increased by 36.5% at 40 \u00b0C and 88.6% at 60 \u00b0C. 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 \u00b0C.<\/jats:p>","DOI":"10.3390\/polym12091927","type":"journal-article","created":{"date-parts":[[2020,8,26]],"date-time":"2020-08-26T09:05:37Z","timestamp":1598432737000},"page":"1927","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Effect of Post-Cure on the Static and Viscoelastic Properties of a Polyester Resin"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4466-7275","authenticated-orcid":false,"given":"Marco P.","family":"Silva","sequence":"first","affiliation":[{"name":"C-MAST, Department of Electromechanical Engineering, University of Beira Interior, Cal\u00e7ada Fonte do Lameiro, 6201-100 Covilha, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9026-5966","authenticated-orcid":false,"given":"Paulo","family":"Santos","sequence":"additional","affiliation":[{"name":"C-MAST, Department of Electromechanical Engineering, University of Beira Interior, Cal\u00e7ada Fonte do Lameiro, 6201-100 Covilha, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4875-5838","authenticated-orcid":false,"given":"Jo\u00e3o M.","family":"Parente","sequence":"additional","affiliation":[{"name":"C-MAST, Department of Electromechanical Engineering, University of Beira Interior, Cal\u00e7ada Fonte do Lameiro, 6201-100 Covilha, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8285-1332","authenticated-orcid":false,"given":"Sara","family":"Valvez","sequence":"additional","affiliation":[{"name":"C-MAST, Department of Electromechanical Engineering, University of Beira Interior, Cal\u00e7ada Fonte do Lameiro, 6201-100 Covilha, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5203-3670","authenticated-orcid":false,"given":"Paulo N. B.","family":"Reis","sequence":"additional","affiliation":[{"name":"C-MAST, Department of Electromechanical Engineering, University of Beira Interior, Cal\u00e7ada Fonte do Lameiro, 6201-100 Covilha, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1588-0640","authenticated-orcid":false,"given":"Ana P.","family":"Piedade","sequence":"additional","affiliation":[{"name":"University of Coimbra, CEMMPRE, Department of Mechanical Engineering, 3030-788 Coimbra, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2020,8,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1739","DOI":"10.1002\/(SICI)1097-4628(19970531)64:9<1739::AID-APP10>3.0.CO;2-T","article-title":"Mechanical properties of pineapple leaf fiber-reinforced polyester composites","volume":"64","author":"Devi","year":"1997","journal-title":"J. Appl. Polym. 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