Abiotic degradation of recycled polymer/wood composites exposed to outdoor applications
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/213909 |
Resumo: | Wood-plastic composites (WPCs) have received increasing attention during the last decades, because of many advantages related to their use. Some of their main applications are represented by outdoor furnishing and decking; therefore, it is important to assess their behavior under Ultra Violet (UV) exposure. In this work, polypropylene/wood flour composites were prepared and their resistance to photo-oxidation investigated. The composites were prepared by extrusion and injection molding, and were subjected to mechanical and rheological tests, chemical analysis and colorimetric measurements. The results showed that the composites retained a higher fraction of the original mechanical properties after natural weathering. The study showed that for natural weathering, longer exposure time increased the degree of color change (and lightness). Weathering WPC exhibited decreased in mechanical properties when compared to no weathering WPCs respectively. From this study, relationships between chemical and color changes that occurred during exterior weathering of composites were too established. Climatic conditions directly affect the characteristics of all composites, thus indicating a significant photo-oxidation of the samples with a longer time of exposure to weathering. |
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Catto, André LuisAlmeida, Scheyla Hermann deSantana, Ruth Marlene Campomanes2020-09-30T04:05:46Z20142161-6213http://hdl.handle.net/10183/213909000956156Wood-plastic composites (WPCs) have received increasing attention during the last decades, because of many advantages related to their use. Some of their main applications are represented by outdoor furnishing and decking; therefore, it is important to assess their behavior under Ultra Violet (UV) exposure. In this work, polypropylene/wood flour composites were prepared and their resistance to photo-oxidation investigated. The composites were prepared by extrusion and injection molding, and were subjected to mechanical and rheological tests, chemical analysis and colorimetric measurements. The results showed that the composites retained a higher fraction of the original mechanical properties after natural weathering. The study showed that for natural weathering, longer exposure time increased the degree of color change (and lightness). Weathering WPC exhibited decreased in mechanical properties when compared to no weathering WPCs respectively. From this study, relationships between chemical and color changes that occurred during exterior weathering of composites were too established. Climatic conditions directly affect the characteristics of all composites, thus indicating a significant photo-oxidation of the samples with a longer time of exposure to weathering.application/pdfengJournal of Materials Science and Engineering A [recurso eletrônico]. Wilmington, Germany. Vol. 4, no. 11 (2014), p. 321-329Madeira plásticaIntemperismoAnálise químicaReologiaPropriedades mecânicasWood plastic compositeColor changeMechanical propertiesSurface propertiesNatural weatheringAbiotic degradation of recycled polymer/wood composites exposed to outdoor applicationsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT000956156.pdf.txt000956156.pdf.txtExtracted Texttext/plain29335http://www.lume.ufrgs.br/bitstream/10183/213909/2/000956156.pdf.txt95634a63a4a5f8f948eab13aaf8ec0edMD52ORIGINAL000956156.pdfTexto completo (inglês)application/pdf416807http://www.lume.ufrgs.br/bitstream/10183/213909/1/000956156.pdf5d76b7b727acec8965b3744c1d3688a8MD5110183/2139092020-10-01 04:03:09.293422oai:www.lume.ufrgs.br:10183/213909Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2020-10-01T07:03:09Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Abiotic degradation of recycled polymer/wood composites exposed to outdoor applications |
title |
Abiotic degradation of recycled polymer/wood composites exposed to outdoor applications |
spellingShingle |
Abiotic degradation of recycled polymer/wood composites exposed to outdoor applications Catto, André Luis Madeira plástica Intemperismo Análise química Reologia Propriedades mecânicas Wood plastic composite Color change Mechanical properties Surface properties Natural weathering |
title_short |
Abiotic degradation of recycled polymer/wood composites exposed to outdoor applications |
title_full |
Abiotic degradation of recycled polymer/wood composites exposed to outdoor applications |
title_fullStr |
Abiotic degradation of recycled polymer/wood composites exposed to outdoor applications |
title_full_unstemmed |
Abiotic degradation of recycled polymer/wood composites exposed to outdoor applications |
title_sort |
Abiotic degradation of recycled polymer/wood composites exposed to outdoor applications |
author |
Catto, André Luis |
author_facet |
Catto, André Luis Almeida, Scheyla Hermann de Santana, Ruth Marlene Campomanes |
author_role |
author |
author2 |
Almeida, Scheyla Hermann de Santana, Ruth Marlene Campomanes |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Catto, André Luis Almeida, Scheyla Hermann de Santana, Ruth Marlene Campomanes |
dc.subject.por.fl_str_mv |
Madeira plástica Intemperismo Análise química Reologia Propriedades mecânicas |
topic |
Madeira plástica Intemperismo Análise química Reologia Propriedades mecânicas Wood plastic composite Color change Mechanical properties Surface properties Natural weathering |
dc.subject.eng.fl_str_mv |
Wood plastic composite Color change Mechanical properties Surface properties Natural weathering |
description |
Wood-plastic composites (WPCs) have received increasing attention during the last decades, because of many advantages related to their use. Some of their main applications are represented by outdoor furnishing and decking; therefore, it is important to assess their behavior under Ultra Violet (UV) exposure. In this work, polypropylene/wood flour composites were prepared and their resistance to photo-oxidation investigated. The composites were prepared by extrusion and injection molding, and were subjected to mechanical and rheological tests, chemical analysis and colorimetric measurements. The results showed that the composites retained a higher fraction of the original mechanical properties after natural weathering. The study showed that for natural weathering, longer exposure time increased the degree of color change (and lightness). Weathering WPC exhibited decreased in mechanical properties when compared to no weathering WPCs respectively. From this study, relationships between chemical and color changes that occurred during exterior weathering of composites were too established. Climatic conditions directly affect the characteristics of all composites, thus indicating a significant photo-oxidation of the samples with a longer time of exposure to weathering. |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014 |
dc.date.accessioned.fl_str_mv |
2020-09-30T04:05:46Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/213909 |
dc.identifier.issn.pt_BR.fl_str_mv |
2161-6213 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000956156 |
identifier_str_mv |
2161-6213 000956156 |
url |
http://hdl.handle.net/10183/213909 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of Materials Science and Engineering A [recurso eletrônico]. Wilmington, Germany. Vol. 4, no. 11 (2014), p. 321-329 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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