The crystallinity degree influence on the weather resistance of CF/PPS composites

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dc.contributor.authorBatista, N. L. [UNESP]
dc.contributor.authorRezende, M. C.
dc.contributor.authorBotelho, E. C. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2018-12-11T16:47:05Z
dc.date.available2018-12-11T16:47:05Z
dc.date.issued2016-01-01
dc.description.abstractPolyphenylene sulphide (PPS) is a semi-crystalline high-performance thermoplastic used in the aeronautic field as a composite usually reinforced with carbon fibers. The crystallinity of semi-crystalline thermoplastics can alter significantly their mechanical properties and weather resistance. In this work, carbon fiber/polyphenylene sulphide (CF/PPS) composites were processed by hot compression molding with three different crystallinity degrees. Hygrothermal, salt spray and ultraviolet radiation climatic chambers were used to evaluate the influence of the crystallinity degree on CF/PPS composites weather resistance. The thermal and mechanical properties of the processed laminates, as obtained and weathered, were investigated by differential scanning calorimetry (DSC), interlaminar shear strength (ILSS) and acoustic vibration damping tests. The results showed that the less crystalline CF/PPS samples had their crystallinity degree increased after weathering. Salts spray exposure affected the reinforcement/matrix interphase and reduced the Young's modulus. In addition, the ultraviolet radiation reduced the Young's modulus and the interlaminar shear strength due to photooxidation. The samples with higher crystalline content were more were more severely photodegradated. In conclusion, the composites with higher crystalline degree showed to be more resistant to humidity and salinity. However, those with lower crystalline degree were more resistant to the effects of the ultraviolet radiation.en
dc.description.affiliationDepartment of Materials Sao Paulo State University (UNESP), Av. Ariberto Pereira, 333
dc.description.affiliationInstitute of Science and Technology Federal University of Sao Paulo (UNIFESP), R. Talim, 330
dc.description.affiliationUnespDepartment of Materials Sao Paulo State University (UNESP), Av. Ariberto Pereira, 333
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCAPES: 12357-13-8
dc.description.sponsorshipIdFAPESP: 2012/12207-6
dc.description.sponsorshipIdCNPq: 303287/2013-6
dc.description.sponsorshipIdCNPq: 303559/2012-8
dc.identifier.citationECCM 2016 - Proceeding of the 17th European Conference on Composite Materials.
dc.identifier.lattes4378078337343660
dc.identifier.orcid0000-0001-8338-4879
dc.identifier.scopus2-s2.0-85018571690
dc.identifier.urihttp://hdl.handle.net/11449/169666
dc.language.isoeng
dc.relation.ispartofECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCF/PPS
dc.subjectCrystallinity degree
dc.subjectThermoplastic
dc.subjectWeather resistance
dc.titleThe crystallinity degree influence on the weather resistance of CF/PPS compositesen
dc.typeTrabalho apresentado em evento
unesp.author.lattes4378078337343660[3]
unesp.author.orcid0000-0001-8338-4879[3]

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