Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy composites
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/46336 |
Resumo: | Surface modification of jute fibers is necessary to improve the adhesion and interfacial compatibility between fibers and resin matrix before using fibers in polymer composites. In this study, dodecyl gallate (DG) was enzymatically grafted onto the jute fiber by laccase to endow the fiber with hydrophobicity. A hand lay-up technique was then adopted to prepare jute/epoxy composites. Contact angle and wetting time measurements showed that the surface hydrophobicity of the jute fabric was increased after the enzymatic graft modification. The water absorption and thickness swelling of the DG-grafted jute fabric/epoxy composite were lower than those of the other composites. The tensile and dynamic mechanical properties of the jute/epoxy composites were enhanced by the surface modification. Scanning electron microscopy images revealed stronger fibermatrix adhesion in composites with modified fibers. Therefore, the enzymatic graft modification increased the fibermatrix interface area. The fibermatrix adhesion was enhanced, and the mechanical properties of the composites were improved. |
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Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy compositesScience & TechnologySurface modification of jute fibers is necessary to improve the adhesion and interfacial compatibility between fibers and resin matrix before using fibers in polymer composites. In this study, dodecyl gallate (DG) was enzymatically grafted onto the jute fiber by laccase to endow the fiber with hydrophobicity. A hand lay-up technique was then adopted to prepare jute/epoxy composites. Contact angle and wetting time measurements showed that the surface hydrophobicity of the jute fabric was increased after the enzymatic graft modification. The water absorption and thickness swelling of the DG-grafted jute fabric/epoxy composite were lower than those of the other composites. The tensile and dynamic mechanical properties of the jute/epoxy composites were enhanced by the surface modification. Scanning electron microscopy images revealed stronger fibermatrix adhesion in composites with modified fibers. Therefore, the enzymatic graft modification increased the fibermatrix interface area. The fibermatrix adhesion was enhanced, and the mechanical properties of the composites were improved.Contract grant sponsor: National Natural Science Foundation of China; contract grant number: 51173071; contract grant sponsor: Program for New Century Excellent Talents in University; contract grant number: NCET-12-0883; contract grant sponsor: Fundamental Research Funds for the Central Universities; contract grant sponsor: JUSRP51312B.info:eu-repo/semantics/publishedVersionJohn Wiley and SonsUniversidade do MinhoNi, XiaoyanDong, AixueFan, XuerongWang, QiangYu, YuanyuanCavaco-Paulo, Artur2017-072017-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/46336engNi, Xiaoyan; Dong, Aixue; Fan, Xuerong; Wang, Qiang; Yu, Yuanyuan; Cavaco-Paulo, Artur, Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy composites. Polymer Composites, 38(7), 1327-1334, 20170272-83971548-056910.1002/pc.23699http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1548-0569info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T11:58:01Zoai:repositorium.sdum.uminho.pt:1822/46336Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:47:42.843277Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy composites |
title |
Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy composites |
spellingShingle |
Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy composites Ni, Xiaoyan Science & Technology |
title_short |
Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy composites |
title_full |
Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy composites |
title_fullStr |
Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy composites |
title_full_unstemmed |
Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy composites |
title_sort |
Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy composites |
author |
Ni, Xiaoyan |
author_facet |
Ni, Xiaoyan Dong, Aixue Fan, Xuerong Wang, Qiang Yu, Yuanyuan Cavaco-Paulo, Artur |
author_role |
author |
author2 |
Dong, Aixue Fan, Xuerong Wang, Qiang Yu, Yuanyuan Cavaco-Paulo, Artur |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Ni, Xiaoyan Dong, Aixue Fan, Xuerong Wang, Qiang Yu, Yuanyuan Cavaco-Paulo, Artur |
dc.subject.por.fl_str_mv |
Science & Technology |
topic |
Science & Technology |
description |
Surface modification of jute fibers is necessary to improve the adhesion and interfacial compatibility between fibers and resin matrix before using fibers in polymer composites. In this study, dodecyl gallate (DG) was enzymatically grafted onto the jute fiber by laccase to endow the fiber with hydrophobicity. A hand lay-up technique was then adopted to prepare jute/epoxy composites. Contact angle and wetting time measurements showed that the surface hydrophobicity of the jute fabric was increased after the enzymatic graft modification. The water absorption and thickness swelling of the DG-grafted jute fabric/epoxy composite were lower than those of the other composites. The tensile and dynamic mechanical properties of the jute/epoxy composites were enhanced by the surface modification. Scanning electron microscopy images revealed stronger fibermatrix adhesion in composites with modified fibers. Therefore, the enzymatic graft modification increased the fibermatrix interface area. The fibermatrix adhesion was enhanced, and the mechanical properties of the composites were improved. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-07 2017-07-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/46336 |
url |
http://hdl.handle.net/1822/46336 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ni, Xiaoyan; Dong, Aixue; Fan, Xuerong; Wang, Qiang; Yu, Yuanyuan; Cavaco-Paulo, Artur, Enzyme-mediated surface modification of jute and its influence on the properties of jute/epoxy composites. Polymer Composites, 38(7), 1327-1334, 2017 0272-8397 1548-0569 10.1002/pc.23699 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1548-0569 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
John Wiley and Sons |
publisher.none.fl_str_mv |
John Wiley and Sons |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799132236292816896 |