Microwave-crosslinked Bio-based Starch/Clay aerogels

Foam-like robust starch/sodium montmorillonite (Na+-MMT) aerogels were fabricated through a freeze-drying process. Glutaraldehyde (GL) was used to crosslink the starch aerogels with the assistance of radiation supplied by a domestic microwave oven. The chemical reaction between GL and starch was ana...

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Autores: Wang, Liang, Sánchez Soto, Miguel|||0000-0002-0023-5059, Maspoch Rulduà, M. Lluïsa|||0000-0002-4813-6412, Santana Pérez, Orlando Onofre|||0000-0003-3040-6848
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/87523
Acceso en línea:https://hdl.handle.net/2117/87523
https://dx.doi.org/10.1002/pi.5104
Access Level:acceso abierto
Palabra clave:Aerogels
Biodegradable plastics
starch
aerogel
crosslink
microwave
biodegradability
Aerogels -- Biodegradació
Àrees temàtiques de la UPC::Enginyeria dels materials
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oai_identifier_str oai:upcommons.upc.edu:2117/87523
network_acronym_str ES
network_name_str España
repository_id_str
spelling Microwave-crosslinked Bio-based Starch/Clay aerogelsWang, LiangSánchez Soto, Miguel|||0000-0002-0023-5059Maspoch Rulduà, M. Lluïsa|||0000-0002-4813-6412Santana Pérez, Orlando Onofre|||0000-0003-3040-6848AerogelsBiodegradable plasticsstarchaerogelcrosslinkmicrowavebiodegradabilityAerogels -- BiodegradacióÀrees temàtiques de la UPC::Enginyeria dels materialsFoam-like robust starch/sodium montmorillonite (Na+-MMT) aerogels were fabricated through a freeze-drying process. Glutaraldehyde (GL) was used to crosslink the starch aerogels with the assistance of radiation supplied by a domestic microwave oven. The chemical reaction between GL and starch was analysed using Fourier transform infrared spectroscopy and water swelling tests. The microstructures and mechanical properties of the resultant crosslinked starch aerogels changed with GL concentration. By incorporating 5% (w/w) GL, the specific compressive modulus and absorbed energy increased by 2.4 and 3.3 times, respectively. In regard to starch/clay aerogel composites, Na+-MMT clay played the role of reinforcement. Moreover, clay addition created more porous structures and hence decreased the thermal conductivity of the aerogels. The biodegradability of the aerogels was studied using a homemade micro-respirometer. The starch aerogels exhibited higher biodegradability than poly(vinyl alcohol)-based ones and their corresponding films.Peer Reviewed20162016-08-0120162016-05-31journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/87523https://dx.doi.org/10.1002/pi.5104reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/875232026-05-27T15:37:01Z
dc.title.none.fl_str_mv Microwave-crosslinked Bio-based Starch/Clay aerogels
title Microwave-crosslinked Bio-based Starch/Clay aerogels
spellingShingle Microwave-crosslinked Bio-based Starch/Clay aerogels
Wang, Liang
Aerogels
Biodegradable plastics
starch
aerogel
crosslink
microwave
biodegradability
Aerogels -- Biodegradació
Àrees temàtiques de la UPC::Enginyeria dels materials
title_short Microwave-crosslinked Bio-based Starch/Clay aerogels
title_full Microwave-crosslinked Bio-based Starch/Clay aerogels
title_fullStr Microwave-crosslinked Bio-based Starch/Clay aerogels
title_full_unstemmed Microwave-crosslinked Bio-based Starch/Clay aerogels
title_sort Microwave-crosslinked Bio-based Starch/Clay aerogels
dc.creator.none.fl_str_mv Wang, Liang
Sánchez Soto, Miguel|||0000-0002-0023-5059
Maspoch Rulduà, M. Lluïsa|||0000-0002-4813-6412
Santana Pérez, Orlando Onofre|||0000-0003-3040-6848
author Wang, Liang
author_facet Wang, Liang
Sánchez Soto, Miguel|||0000-0002-0023-5059
Maspoch Rulduà, M. Lluïsa|||0000-0002-4813-6412
Santana Pérez, Orlando Onofre|||0000-0003-3040-6848
author_role author
author2 Sánchez Soto, Miguel|||0000-0002-0023-5059
Maspoch Rulduà, M. Lluïsa|||0000-0002-4813-6412
Santana Pérez, Orlando Onofre|||0000-0003-3040-6848
author2_role author
author
author
dc.subject.none.fl_str_mv Aerogels
Biodegradable plastics
starch
aerogel
crosslink
microwave
biodegradability
Aerogels -- Biodegradació
Àrees temàtiques de la UPC::Enginyeria dels materials
topic Aerogels
Biodegradable plastics
starch
aerogel
crosslink
microwave
biodegradability
Aerogels -- Biodegradació
Àrees temàtiques de la UPC::Enginyeria dels materials
description Foam-like robust starch/sodium montmorillonite (Na+-MMT) aerogels were fabricated through a freeze-drying process. Glutaraldehyde (GL) was used to crosslink the starch aerogels with the assistance of radiation supplied by a domestic microwave oven. The chemical reaction between GL and starch was analysed using Fourier transform infrared spectroscopy and water swelling tests. The microstructures and mechanical properties of the resultant crosslinked starch aerogels changed with GL concentration. By incorporating 5% (w/w) GL, the specific compressive modulus and absorbed energy increased by 2.4 and 3.3 times, respectively. In regard to starch/clay aerogel composites, Na+-MMT clay played the role of reinforcement. Moreover, clay addition created more porous structures and hence decreased the thermal conductivity of the aerogels. The biodegradability of the aerogels was studied using a homemade micro-respirometer. The starch aerogels exhibited higher biodegradability than poly(vinyl alcohol)-based ones and their corresponding films.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-08-01
2016
2016-05-31
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/87523
https://dx.doi.org/10.1002/pi.5104
url https://hdl.handle.net/2117/87523
https://dx.doi.org/10.1002/pi.5104
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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