LDPE/PHB blends filled with castor oil pressed cake
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | |
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=S1516-14392014000100027 |
Resumo: | Blends of PHB and LDPE were prepared by melt mixing in a twin screw extruder. Castor oil pressed cake (CC) was used as filler for the blends. The mixture design technique was used to evaluate the effect of the components proportion on the materials flexural properties. The results show that superior LDPE flexural properties may be obtained by the addition of PHB or castor oil cake to LDPE. Biodegradation was evaluated burying the samples in simulated soil for different periods of time. The ternary mixtures with higher content of PHB showed more pronounced degradation. Under the experimental conditions studied the LDPE/CC compositions presented no degradation. However, the loss of mass of the LDPE/PHB/CC ternary mixtures was higher than the loss of mass of the corresponding LDPE/PHB binary mixture. This result suggests that the castor oil cake accelerates the degradation of the LDPE/PHB mixtures. |
id |
ABMABCABPOL-1_49834502bed5bc19409a596fc8d71165 |
---|---|
oai_identifier_str |
oai:scielo:S1516-14392014000100027 |
network_acronym_str |
ABMABCABPOL-1 |
network_name_str |
Materials research (São Carlos. Online) |
repository_id_str |
|
spelling |
LDPE/PHB blends filled with castor oil pressed cakelow density polyethylenecastor oil pressed cakepoly (3-hydroxybutyrate) flexural propertiesmixture design of experimentsbiodegradationBlends of PHB and LDPE were prepared by melt mixing in a twin screw extruder. Castor oil pressed cake (CC) was used as filler for the blends. The mixture design technique was used to evaluate the effect of the components proportion on the materials flexural properties. The results show that superior LDPE flexural properties may be obtained by the addition of PHB or castor oil cake to LDPE. Biodegradation was evaluated burying the samples in simulated soil for different periods of time. The ternary mixtures with higher content of PHB showed more pronounced degradation. Under the experimental conditions studied the LDPE/CC compositions presented no degradation. However, the loss of mass of the LDPE/PHB/CC ternary mixtures was higher than the loss of mass of the corresponding LDPE/PHB binary mixture. This result suggests that the castor oil cake accelerates the degradation of the LDPE/PHB mixtures.ABM, ABC, ABPol2014-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000100027Materials Research v.17 n.1 2014reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392013005000166info:eu-repo/semantics/openAccessBurlein,Gustavo A. D.Rocha,Marisa C. G.eng2014-03-13T00:00:00Zoai:scielo:S1516-14392014000100027Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2014-03-13T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
LDPE/PHB blends filled with castor oil pressed cake |
title |
LDPE/PHB blends filled with castor oil pressed cake |
spellingShingle |
LDPE/PHB blends filled with castor oil pressed cake Burlein,Gustavo A. D. low density polyethylene castor oil pressed cake poly (3-hydroxybutyrate) flexural properties mixture design of experiments biodegradation |
title_short |
LDPE/PHB blends filled with castor oil pressed cake |
title_full |
LDPE/PHB blends filled with castor oil pressed cake |
title_fullStr |
LDPE/PHB blends filled with castor oil pressed cake |
title_full_unstemmed |
LDPE/PHB blends filled with castor oil pressed cake |
title_sort |
LDPE/PHB blends filled with castor oil pressed cake |
author |
Burlein,Gustavo A. D. |
author_facet |
Burlein,Gustavo A. D. Rocha,Marisa C. G. |
author_role |
author |
author2 |
Rocha,Marisa C. G. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Burlein,Gustavo A. D. Rocha,Marisa C. G. |
dc.subject.por.fl_str_mv |
low density polyethylene castor oil pressed cake poly (3-hydroxybutyrate) flexural properties mixture design of experiments biodegradation |
topic |
low density polyethylene castor oil pressed cake poly (3-hydroxybutyrate) flexural properties mixture design of experiments biodegradation |
description |
Blends of PHB and LDPE were prepared by melt mixing in a twin screw extruder. Castor oil pressed cake (CC) was used as filler for the blends. The mixture design technique was used to evaluate the effect of the components proportion on the materials flexural properties. The results show that superior LDPE flexural properties may be obtained by the addition of PHB or castor oil cake to LDPE. Biodegradation was evaluated burying the samples in simulated soil for different periods of time. The ternary mixtures with higher content of PHB showed more pronounced degradation. Under the experimental conditions studied the LDPE/CC compositions presented no degradation. However, the loss of mass of the LDPE/PHB/CC ternary mixtures was higher than the loss of mass of the corresponding LDPE/PHB binary mixture. This result suggests that the castor oil cake accelerates the degradation of the LDPE/PHB mixtures. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-02-01 |
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=S1516-14392014000100027 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000100027 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392013005000166 |
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.17 n.1 2014 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 |
_version_ |
1754212663699701760 |