Show simple item record

dc.contributor.authorCarvalho, Kelly C. C. [UNESP]
dc.contributor.authorMulinari, Daniella R. [UNESP]
dc.contributor.authorVoorwald, Herman Jacobus Cornelis [UNESP]
dc.contributor.authorCioffi, Maria O. H. [UNESP]
dc.date.accessioned2014-05-20T13:28:17Z
dc.date.available2014-05-20T13:28:17Z
dc.date.issued2010-01-01
dc.identifierhttp://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_05_2_1143_Carvalho_MVC_Chem_Mod_HIPS_coconut_composites
dc.identifier.citationBioresources. Raleigh: North Carolina State Univ Dept Wood & Paper Sci, v. 5, n. 2, p. 1143-1155, 2010.
dc.identifier.issn1930-2126
dc.identifier.urihttp://hdl.handle.net/11449/9403
dc.description.abstractLignocellulosic fibers from green coconut fruit were treated with alkaline solution (NaOH 10% m/v) and then bleached with sodium chlorite (NaClO(2)) and acetic acid (CH(3)COOH). Alkali-treated and bleached fibers were mixed with high impact polystyrene (HIPS) and placed in an injector chamber in order to obtain specimens for tensile tests. Specimens of HIPS/alkali-treated and bleached coconut fiber composites were tested in tensile mode, and the fracture surfaces of the composites were analyzed by scanning electron microscopy. Untreated, alkali-treated, and bleached coconut fibers were analyzed by scanning electron microscopy and X-ray diffraction. Alkaline treatment was effective for removing the extractives and increasing the roughness of surfaces, while the bleaching treatment intensified the effect of alkaline treatment, while increasing the crystallinity index and surface energy of fibers. Results of tensile tests showed that the addition of 30% alkali-treated and bleached fibers reinforcing the HIPS matrix provided considerable changes in the mechanical properties of composites in comparison with the pure HIPS. on the other hand, chemical treatments were not totally effective for improving the adhesion between the fiber and matrix, as was observed in the analysis of the fracture surfaces of composites materials.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent1143-1155
dc.language.isoeng
dc.publisherNorth Carolina State Univ Dept Wood & Paper Sci
dc.relation.ispartofBioResources
dc.sourceWeb of Science
dc.subjectPolymer-matrix compositesen
dc.subjectLignocellulosic fiberen
dc.subjectInjection mouldingen
dc.subjectMechanical propertiesen
dc.titleCHEMICAL MODIFICATION EFFECT on THE MECHANICAL PROPERTIES of HIPS/COCONUT FIBER COMPOSITESen
dc.typeArtigo
dcterms.licensehttp://ojs.cnr.ncsu.edu/index.php/BioRes/about/submissions#copyrightNotice
dcterms.rightsHolderNorth Carolina State Univ Dept Wood & Paper Sci
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationUNESP Univ Estadual Paulista, Dept Mat & Technol, Guaratingueta, SP, Brazil
dc.description.affiliationUnespUNESP Univ Estadual Paulista, Dept Mat & Technol, Guaratingueta, SP, Brazil
dc.identifier.wosWOS:000278317900002
dc.rights.accessRightsAcesso aberto
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Guaratinguetápt
dc.identifier.lattes3511534795805776
unesp.author.lattes3511534795805776
dc.relation.ispartofjcr1.202
dc.relation.ispartofsjr0,405
Localize o texto completo

Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record