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dc.contributor.authorPROTZEK, G. R.eng
dc.contributor.authorMAGALHAES, W. L. E.eng
dc.contributor.authorBITTENCOURT, P. R. S.eng
dc.contributor.authorCLARO NETO, S.eng
dc.contributor.authorVILLANOVA, R. L.eng
dc.contributor.authorAZEVEDO, E. C.eng
dc.date.accessioned2019-07-03T00:40:47Z-
dc.date.available2019-07-03T00:40:47Z-
dc.date.created2019-07-02
dc.date.issued2019
dc.identifier.citationPolímeros: Ciência e Tecnologia, v. 29, n. 2, e2019025, 2019. 9 p.eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1110313-
dc.descriptionThe use of araucaria pine nut shell in polymer composites may increase the pine nut value and help protec araucaria (Araucaria angustifolia) itself, which is an endangered species. The aim of this work is to study the influence of the size of pine nut shell fiber on the mechanical properties of composites made of this shell and polyurethane derived from castor oil. Composites with different polyurethane contents were manufactured with dried untreated pine nut shell sieved through 30 and 50 mesh sieves (0.6 and 0.3 mm, respectively). Composites were shaped by mechanical mixing of the components followed by hot pressing. Properties such as density, water absorption, and flexural strength were measured. Specimens were also characterized by SEM, FTIR, and TGA. The flexural strength of PU/0.3mm pine nut shell composites with 30% PU (wt%) was 57.7 MPa, and their water absorption was 7.37% after 24 hours of immersioneng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectAraucaria pine nut shelleng
dc.subjectCompositeeng
dc.subjectPoliuretanoeng
dc.subjectCompósitoeng
dc.subjectCasca de pinhãoeng
dc.titleThe influence of fiber size on the behavior of the araucaria pine nut shell/PU composite.eng
dc.typeArtigo de periódicoeng
dc.date.updated2019-10-30T11:11:11Z
dc.subject.nalthesaurusCastor oileng
dc.subject.nalthesaurusPolyurethaneseng
dc.subject.nalthesaurusMechanical propertieseng
riaa.ainfo.id1110313eng
riaa.ainfo.lastupdate2019-10-30 -03:00:00
dc.identifier.doi10.1590/0104-1428.01218eng
dc.contributor.institutionGiuliana Ribeiro Protzek, Programa de Pós-graduação da UTFPR; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Paulo Rodrigo Stival Bittencourt, UTFPR; Salvador Claro Neto, USP; Rodrigo Lupinacci Villanova, UTFPR; Elaine Cristina Azevedo, Programa de Pós-graduação da UTFPR.eng
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