Degradation study of polypropylene (PP) and bioriented polypropylene (BOPP) in the environment

Detalhes bibliográficos
Autor(a) principal: Longo,Carina
Data de Publicação: 2011
Outros Autores: Savaris,Michele, Zeni,Mára, Brandalise,Rosmary Nichele, Grisa,Ana Maria Coulon
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000400003
Resumo: Polymers are vastly employed for numerous purposes in different industrial segments and generate soaring quantities of discarding in the environment. This research analyzed the degradability/biodegradability of polypropylene films (PP) and Bioriented polypropylene (BOPP) polymers after 11 months interred in the São Giácomo landfill in Caxias do Sul. Comparing the buried PP film to a sample of virgin PP, two peaks of degrading activity appeared at the TG curve as well as structure modification typified by occurrence of new absorption bands at FTIR, which can be credited to changes in crystallinity. Thermal analysis carried out on the buried PP and BOPP showed decreases in the percentage of crystallinity due to chain scission. The major reduction was observed in the PP, since its crystallinity is a consequence of polymerization instead of chain orientation processes, as in BOPP. Cracks and erosion of the polymer surface were detected in both PP and BOPP, indicating degrading processes by microorganisms.
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spelling Degradation study of polypropylene (PP) and bioriented polypropylene (BOPP) in the environmentpolypropylenebioriented polypropylenedegradationlandfillPolymers are vastly employed for numerous purposes in different industrial segments and generate soaring quantities of discarding in the environment. This research analyzed the degradability/biodegradability of polypropylene films (PP) and Bioriented polypropylene (BOPP) polymers after 11 months interred in the São Giácomo landfill in Caxias do Sul. Comparing the buried PP film to a sample of virgin PP, two peaks of degrading activity appeared at the TG curve as well as structure modification typified by occurrence of new absorption bands at FTIR, which can be credited to changes in crystallinity. Thermal analysis carried out on the buried PP and BOPP showed decreases in the percentage of crystallinity due to chain scission. The major reduction was observed in the PP, since its crystallinity is a consequence of polymerization instead of chain orientation processes, as in BOPP. Cracks and erosion of the polymer surface were detected in both PP and BOPP, indicating degrading processes by microorganisms.ABM, ABC, ABPol2011-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000400003Materials Research v.14 n.4 2011reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392011005000080info:eu-repo/semantics/openAccessLongo,CarinaSavaris,MicheleZeni,MáraBrandalise,Rosmary NicheleGrisa,Ana Maria Couloneng2011-12-13T00:00:00Zoai:scielo:S1516-14392011000400003Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2011-12-13T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Degradation study of polypropylene (PP) and bioriented polypropylene (BOPP) in the environment
title Degradation study of polypropylene (PP) and bioriented polypropylene (BOPP) in the environment
spellingShingle Degradation study of polypropylene (PP) and bioriented polypropylene (BOPP) in the environment
Longo,Carina
polypropylene
bioriented polypropylene
degradation
landfill
title_short Degradation study of polypropylene (PP) and bioriented polypropylene (BOPP) in the environment
title_full Degradation study of polypropylene (PP) and bioriented polypropylene (BOPP) in the environment
title_fullStr Degradation study of polypropylene (PP) and bioriented polypropylene (BOPP) in the environment
title_full_unstemmed Degradation study of polypropylene (PP) and bioriented polypropylene (BOPP) in the environment
title_sort Degradation study of polypropylene (PP) and bioriented polypropylene (BOPP) in the environment
author Longo,Carina
author_facet Longo,Carina
Savaris,Michele
Zeni,Mára
Brandalise,Rosmary Nichele
Grisa,Ana Maria Coulon
author_role author
author2 Savaris,Michele
Zeni,Mára
Brandalise,Rosmary Nichele
Grisa,Ana Maria Coulon
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Longo,Carina
Savaris,Michele
Zeni,Mára
Brandalise,Rosmary Nichele
Grisa,Ana Maria Coulon
dc.subject.por.fl_str_mv polypropylene
bioriented polypropylene
degradation
landfill
topic polypropylene
bioriented polypropylene
degradation
landfill
description Polymers are vastly employed for numerous purposes in different industrial segments and generate soaring quantities of discarding in the environment. This research analyzed the degradability/biodegradability of polypropylene films (PP) and Bioriented polypropylene (BOPP) polymers after 11 months interred in the São Giácomo landfill in Caxias do Sul. Comparing the buried PP film to a sample of virgin PP, two peaks of degrading activity appeared at the TG curve as well as structure modification typified by occurrence of new absorption bands at FTIR, which can be credited to changes in crystallinity. Thermal analysis carried out on the buried PP and BOPP showed decreases in the percentage of crystallinity due to chain scission. The major reduction was observed in the PP, since its crystallinity is a consequence of polymerization instead of chain orientation processes, as in BOPP. Cracks and erosion of the polymer surface were detected in both PP and BOPP, indicating degrading processes by microorganisms.
publishDate 2011
dc.date.none.fl_str_mv 2011-12-01
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=S1516-14392011000400003
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000400003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392011005000080
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.14 n.4 2011
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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