Effect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/184483 |
Resumo: | Wood flour composites main applications are represented by outdoor furnishing. Therefore, it is important to evaluate their behavior under natural ageing conditions. This work aims to investigate the natural ageing impact on the mechanical, physical, thermal e morphological properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites (PP/EVA/ITA). Samples were exposed to natural ageing for 12 months in Porto Alegre (BR). Mezilaurus itauba (ITA) wood flour was used at 30 % w/w. Results showed that PP filled wood flour retained a higher fraction of the original mechanical properties after natural ageing. Crystallinity degree for composites increased from 30.9 up to 37.5% Climatic conditions affected the colorimetric and morphological characteristics of composites, indicating that there was not only photo-degradation but also thermo-oxidative and hydrolytic degradation. In this way, the use of antioxidant additives and UV photo- absorbers is recommended to avoid stress-cracking, discoloration and loss the mechanical properties. |
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Silva, Caroline Barbosa daMartins, Andréa BerciniCatto, André LuisSantana, Ruth Marlene Campomanes2018-11-08T02:47:00Z20171517-7076http://hdl.handle.net/10183/184483001079822Wood flour composites main applications are represented by outdoor furnishing. Therefore, it is important to evaluate their behavior under natural ageing conditions. This work aims to investigate the natural ageing impact on the mechanical, physical, thermal e morphological properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites (PP/EVA/ITA). Samples were exposed to natural ageing for 12 months in Porto Alegre (BR). Mezilaurus itauba (ITA) wood flour was used at 30 % w/w. Results showed that PP filled wood flour retained a higher fraction of the original mechanical properties after natural ageing. Crystallinity degree for composites increased from 30.9 up to 37.5% Climatic conditions affected the colorimetric and morphological characteristics of composites, indicating that there was not only photo-degradation but also thermo-oxidative and hydrolytic degradation. In this way, the use of antioxidant additives and UV photo- absorbers is recommended to avoid stress-cracking, discoloration and loss the mechanical properties.application/pdfengRevista matéria [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 22, n. 2 (2017), artigo e-11835, [12 p.]EngenhariaWood plastic compositeRecycled PPRecycled EVANatural ageingEffect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour compositesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001079822.pdf.txt001079822.pdf.txtExtracted Texttext/plain38587http://www.lume.ufrgs.br/bitstream/10183/184483/2/001079822.pdf.txt01cb38dd2339a87e20bb86634be2af7fMD52ORIGINAL001079822.pdfTexto completo (inglês)application/pdf834960http://www.lume.ufrgs.br/bitstream/10183/184483/1/001079822.pdf8597fb44149a4043dee56b88a6704b32MD5110183/1844832018-11-09 02:46:04.918298oai:www.lume.ufrgs.br:10183/184483Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-11-09T04:46:04Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Effect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites |
title |
Effect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites |
spellingShingle |
Effect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites Silva, Caroline Barbosa da Engenharia Wood plastic composite Recycled PP Recycled EVA Natural ageing |
title_short |
Effect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites |
title_full |
Effect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites |
title_fullStr |
Effect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites |
title_full_unstemmed |
Effect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites |
title_sort |
Effect of natural ageing on the properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites |
author |
Silva, Caroline Barbosa da |
author_facet |
Silva, Caroline Barbosa da Martins, Andréa Bercini Catto, André Luis Santana, Ruth Marlene Campomanes |
author_role |
author |
author2 |
Martins, Andréa Bercini Catto, André Luis Santana, Ruth Marlene Campomanes |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Silva, Caroline Barbosa da Martins, Andréa Bercini Catto, André Luis Santana, Ruth Marlene Campomanes |
dc.subject.por.fl_str_mv |
Engenharia |
topic |
Engenharia Wood plastic composite Recycled PP Recycled EVA Natural ageing |
dc.subject.eng.fl_str_mv |
Wood plastic composite Recycled PP Recycled EVA Natural ageing |
description |
Wood flour composites main applications are represented by outdoor furnishing. Therefore, it is important to evaluate their behavior under natural ageing conditions. This work aims to investigate the natural ageing impact on the mechanical, physical, thermal e morphological properties of recycled polypropylene/ethylene vinyl acetate/wood flour composites (PP/EVA/ITA). Samples were exposed to natural ageing for 12 months in Porto Alegre (BR). Mezilaurus itauba (ITA) wood flour was used at 30 % w/w. Results showed that PP filled wood flour retained a higher fraction of the original mechanical properties after natural ageing. Crystallinity degree for composites increased from 30.9 up to 37.5% Climatic conditions affected the colorimetric and morphological characteristics of composites, indicating that there was not only photo-degradation but also thermo-oxidative and hydrolytic degradation. In this way, the use of antioxidant additives and UV photo- absorbers is recommended to avoid stress-cracking, discoloration and loss the mechanical properties. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2018-11-08T02:47:00Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
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/10183/184483 |
dc.identifier.issn.pt_BR.fl_str_mv |
1517-7076 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001079822 |
identifier_str_mv |
1517-7076 001079822 |
url |
http://hdl.handle.net/10183/184483 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Revista matéria [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 22, n. 2 (2017), artigo e-11835, [12 p.] |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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