Please use this identifier to cite or link to this item: http://dspace.ucuenca.edu.ec/handle/123456789/22081
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dc.contributor.authorPelaez Samaniego, Manuel Raul
dc.date.accessioned2018-01-11T21:21:56Z-
dc.date.available2018-01-11T21:21:56Z-
dc.date.issued2013-02-01
dc.identifier.issn183830
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84873896858&doi=10.1515%2fhf-2012-0071&partnerID=40&md5=3d5473bde4c3ec4bca91a1fd7aab3b09
dc.identifier.urihttp://dspace.ucuenca.edu.ec/handle/123456789/22081-
dc.description.abstractUndebarked ponderosa pine chips were treated by hot water extraction to modify the chemical composition. In the treated pine (TP), the mass was reduced by approximately 20 %, and the extract was composed mainly of degradation products of hemicelluloses. Wood flour produced from TP and unextracted chips (untreated pine, UP) was blended with high-density polyethylene (HDPE) and polypropylene (PP) and was extruded into wood plastic composites (WPCs). Formulations for WPCs consisted of 58 % pine, 32 % plastic, and 10 % other additives. WPC based on HDPE? + ?TP and PP? +?TP absorbed 46-45% less water than did WPC based on HDPE? +?UP and PP? + ?UP, respectively. Thickness swelling was reduced by 45-59%, respectively, after 2520 h of immersion. The diffusion constant decreased by approximately 36 %. Evaluation of mechanical properties in flexure and tension mode indicated improvements in TP-WPC properties, although the data were not statistically significant in all cases. Results showed that debarking of ponderosa pine is not required for WPC production.
dc.language.isoen_US
dc.sourceHolzforschung
dc.subjectExtrusion
dc.subjectHot water extraction
dc.subjectHygroscopicity
dc.subjectWood plastic composites (WPC)
dc.titleHot water extracted wood fiber for production of wood plastic composites (WPCs)
dc.typeArticle
dc.ucuenca.idautor0301219309
dc.identifier.doi10.1515/hf-2012-0071
dc.ucuenca.embargoend2022-01-01 0:00
dc.ucuenca.afiliacionpelaez-samaniego, m.r., biological systems engineering department, washington state university, pullman, wa, united states, faculty of chemical sciences, universidad de cuenca, cuenca, ecuador
dc.ucuenca.correspondenciaYadama, V.; Composite Materials and Engineering Center, Washington State University, Pullman, WA 99164, United States; email: vyadama@wsu.edu
dc.ucuenca.volumen67
dc.ucuenca.indicebibliograficoSCOPUS
dc.ucuenca.factorimpacto0.89
dc.ucuenca.cuartilQ2
dc.ucuenca.numerocitaciones25
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