Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical properties

Detalhes bibliográficos
Autor(a) principal: Lazzari,Lívia
Data de Publicação: 2019
Outros Autores: Domingos,Eloilson, Silva,Letícia, Kuznetsov,Alexei, Romão,Wanderson, Araujo,Joyce
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Polímeros (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282019000400405
Resumo: Abstract In this work, bottle-grade poly(ethylene terephthalate) (PETR), kraft lignin (KL), and chemically modified lignin (ML) were used to form blends to improve the mechanical and thermal properties of pure PET. The PET/KL and PETR/ML blends were produced with 0.5, 1, 3, and 5 wt.% of lignin via melt extrusion and injection molding. The produced blends and PETR were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TGA), differential scanning calorimetry (DSC) and mechanical properties testing. The FTIR measurements confirmed the chemical modifications of the ML samples, while the TGA results showed KL to be thermally more stable than ML. The glass transition temperature of PETR changed as a function of the amount of lignin, as revealed by the DSC measurements. The PET/KL blends demonstrated their potential for use as an engineering material due to their improved thermal and mechanical properties compared to those of PETR.
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spelling Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical propertiesblendskraft ligninmechanical propertiespoly(ethylene terephthalate)Abstract In this work, bottle-grade poly(ethylene terephthalate) (PETR), kraft lignin (KL), and chemically modified lignin (ML) were used to form blends to improve the mechanical and thermal properties of pure PET. The PET/KL and PETR/ML blends were produced with 0.5, 1, 3, and 5 wt.% of lignin via melt extrusion and injection molding. The produced blends and PETR were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TGA), differential scanning calorimetry (DSC) and mechanical properties testing. The FTIR measurements confirmed the chemical modifications of the ML samples, while the TGA results showed KL to be thermally more stable than ML. The glass transition temperature of PETR changed as a function of the amount of lignin, as revealed by the DSC measurements. The PET/KL blends demonstrated their potential for use as an engineering material due to their improved thermal and mechanical properties compared to those of PETR.Associação Brasileira de Polímeros2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282019000400405Polímeros v.29 n.4 2019reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.1590/0104-1428.06618info:eu-repo/semantics/openAccessLazzari,LíviaDomingos,EloilsonSilva,LetíciaKuznetsov,AlexeiRomão,WandersonAraujo,Joyceeng2020-04-23T00:00:00Zoai:scielo:S0104-14282019000400405Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2020-04-23T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false
dc.title.none.fl_str_mv Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical properties
title Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical properties
spellingShingle Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical properties
Lazzari,Lívia
blends
kraft lignin
mechanical properties
poly(ethylene terephthalate)
title_short Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical properties
title_full Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical properties
title_fullStr Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical properties
title_full_unstemmed Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical properties
title_sort Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical properties
author Lazzari,Lívia
author_facet Lazzari,Lívia
Domingos,Eloilson
Silva,Letícia
Kuznetsov,Alexei
Romão,Wanderson
Araujo,Joyce
author_role author
author2 Domingos,Eloilson
Silva,Letícia
Kuznetsov,Alexei
Romão,Wanderson
Araujo,Joyce
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Lazzari,Lívia
Domingos,Eloilson
Silva,Letícia
Kuznetsov,Alexei
Romão,Wanderson
Araujo,Joyce
dc.subject.por.fl_str_mv blends
kraft lignin
mechanical properties
poly(ethylene terephthalate)
topic blends
kraft lignin
mechanical properties
poly(ethylene terephthalate)
description Abstract In this work, bottle-grade poly(ethylene terephthalate) (PETR), kraft lignin (KL), and chemically modified lignin (ML) were used to form blends to improve the mechanical and thermal properties of pure PET. The PET/KL and PETR/ML blends were produced with 0.5, 1, 3, and 5 wt.% of lignin via melt extrusion and injection molding. The produced blends and PETR were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TGA), differential scanning calorimetry (DSC) and mechanical properties testing. The FTIR measurements confirmed the chemical modifications of the ML samples, while the TGA results showed KL to be thermally more stable than ML. The glass transition temperature of PETR changed as a function of the amount of lignin, as revealed by the DSC measurements. The PET/KL blends demonstrated their potential for use as an engineering material due to their improved thermal and mechanical properties compared to those of PETR.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv 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://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282019000400405
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282019000400405
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0104-1428.06618
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Polímeros
publisher.none.fl_str_mv Associação Brasileira de Polímeros
dc.source.none.fl_str_mv Polímeros v.29 n.4 2019
reponame:Polímeros (São Carlos. Online)
instname:Associação Brasileira de Polímeros (ABPol)
instacron:ABPO
instname_str Associação Brasileira de Polímeros (ABPol)
instacron_str ABPO
institution ABPO
reponame_str Polímeros (São Carlos. Online)
collection Polímeros (São Carlos. Online)
repository.name.fl_str_mv Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)
repository.mail.fl_str_mv ||revista@abpol.org.br
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