Study of thermochemical treatments of cork in the 150-400ºC range using colour analysis and FTIR spectroscopy

Detalhes bibliográficos
Autor(a) principal: Sen, Ali
Data de Publicação: 2012
Outros Autores: Marques, António Velez, Gominho, Jorge, Pereira, Helena
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/4300
Resumo: Available at SciVerse ScienceDirect
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spelling Study of thermochemical treatments of cork in the 150-400ºC range using colour analysis and FTIR spectroscopyQuercus cerriscorkheat treatmentcolour analysisFTIRAvailable at SciVerse ScienceDirectA study of chemical transformations of cork during heat treatments was made using colour variation and FTIR analysis. The cork enriched fractions from Quercus cerris bark were subjected to isothermal heating in the temperature range 150–400 ◦C and treatment time from 5 to 90 min. Mass loss ranged from 3% (90 min at 150 ◦C) to 71% (60 min at 350 ◦C). FTIR showed that hemicelluloses were thermally degraded first while suberin remained as the most heat resistant component. The change of CIE-Lab parameters was rapid for low intensity treatments where no significant mass loss occurred (at 150 ◦C L* decreased from the initial 51.5 to 37.3 after 20 min). The decrease in all colour parameters continued with temperature until they remained substantially constant with over 40% mass loss. Modelling of the thermally induced mass loss could be made using colour analysis. This is applicable to monitoring the production of heat expanded insulation agglomerates.ElsevierRepositório da Universidade de LisboaSen, AliMarques, António VelezGominho, JorgePereira, Helena2012-04-27T10:11:52Z20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/4300eng"Industrial Crops and Products". ISSN 0926-6690. 38 (2012) 132-1380926-6690info: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:RCAAP2023-03-06T14:35:18Zoai:www.repository.utl.pt:10400.5/4300Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:51:59.683251Repositório 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 Study of thermochemical treatments of cork in the 150-400ºC range using colour analysis and FTIR spectroscopy
title Study of thermochemical treatments of cork in the 150-400ºC range using colour analysis and FTIR spectroscopy
spellingShingle Study of thermochemical treatments of cork in the 150-400ºC range using colour analysis and FTIR spectroscopy
Sen, Ali
Quercus cerris
cork
heat treatment
colour analysis
FTIR
title_short Study of thermochemical treatments of cork in the 150-400ºC range using colour analysis and FTIR spectroscopy
title_full Study of thermochemical treatments of cork in the 150-400ºC range using colour analysis and FTIR spectroscopy
title_fullStr Study of thermochemical treatments of cork in the 150-400ºC range using colour analysis and FTIR spectroscopy
title_full_unstemmed Study of thermochemical treatments of cork in the 150-400ºC range using colour analysis and FTIR spectroscopy
title_sort Study of thermochemical treatments of cork in the 150-400ºC range using colour analysis and FTIR spectroscopy
author Sen, Ali
author_facet Sen, Ali
Marques, António Velez
Gominho, Jorge
Pereira, Helena
author_role author
author2 Marques, António Velez
Gominho, Jorge
Pereira, Helena
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Sen, Ali
Marques, António Velez
Gominho, Jorge
Pereira, Helena
dc.subject.por.fl_str_mv Quercus cerris
cork
heat treatment
colour analysis
FTIR
topic Quercus cerris
cork
heat treatment
colour analysis
FTIR
description Available at SciVerse ScienceDirect
publishDate 2012
dc.date.none.fl_str_mv 2012-04-27T10:11:52Z
2012
2012-01-01T00:00:00Z
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/10400.5/4300
url http://hdl.handle.net/10400.5/4300
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Industrial Crops and Products". ISSN 0926-6690. 38 (2012) 132-138
0926-6690
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 Elsevier
publisher.none.fl_str_mv Elsevier
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
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str 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
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