High shear dispersion of tracers in polyolefins for improving their detection
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
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=S0104-14282015000500008 |
Resumo: | Abstract An efficient recycling of end-of-life products is of crucial interest from an economical and ecological point of view. However, the near infrared spectroscopy often used for the optic sorting processes is limited because of the absorption of carbon black present in black plastics and as it only sorts as a function of chemical formulas. The tracing technology developed in this study is based on the dispersion of lanthanide complexes particles into polymers to give them a code that can be related to their formulation and viscosity that are important parameters for their re-processing. As the success of this technology is conditioned by achieving a fine dispersion of the tracer particles, we also focus on accomplishing a fine dispersion of tracer particles by using a high shear process. Processing under high shear rate (N= 800 rpm) has proved to play a determining role in dispersing finely and homogenously tracer particles within PP matrix. Thanks to the good quality of dispersion, the detection of three tracers at a level of 0.1 wt% has been successfully achieved, even in black matrices for an acquisition time of 10 ms. |
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High shear dispersion of tracers in polyolefins for improving their detectiontracerspolyolefinsautomated sortingUV fluorescencehigh shear extrusionrecyclabilityAbstract An efficient recycling of end-of-life products is of crucial interest from an economical and ecological point of view. However, the near infrared spectroscopy often used for the optic sorting processes is limited because of the absorption of carbon black present in black plastics and as it only sorts as a function of chemical formulas. The tracing technology developed in this study is based on the dispersion of lanthanide complexes particles into polymers to give them a code that can be related to their formulation and viscosity that are important parameters for their re-processing. As the success of this technology is conditioned by achieving a fine dispersion of the tracer particles, we also focus on accomplishing a fine dispersion of tracer particles by using a high shear process. Processing under high shear rate (N= 800 rpm) has proved to play a determining role in dispersing finely and homogenously tracer particles within PP matrix. Thanks to the good quality of dispersion, the detection of three tracers at a level of 0.1 wt% has been successfully achieved, even in black matrices for an acquisition time of 10 ms.Associação Brasileira de Polímeros2015-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282015000500008Polímeros v.25 n.5 2015reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.1590/0104-1428.1974info:eu-repo/semantics/openAccessMassardier,ValérieLouizi,MolkaMaris,ElisabethFroelich,Danieleng2015-12-09T00:00:00Zoai:scielo:S0104-14282015000500008Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2015-12-09T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false |
dc.title.none.fl_str_mv |
High shear dispersion of tracers in polyolefins for improving their detection |
title |
High shear dispersion of tracers in polyolefins for improving their detection |
spellingShingle |
High shear dispersion of tracers in polyolefins for improving their detection Massardier,Valérie tracers polyolefins automated sorting UV fluorescence high shear extrusion recyclability |
title_short |
High shear dispersion of tracers in polyolefins for improving their detection |
title_full |
High shear dispersion of tracers in polyolefins for improving their detection |
title_fullStr |
High shear dispersion of tracers in polyolefins for improving their detection |
title_full_unstemmed |
High shear dispersion of tracers in polyolefins for improving their detection |
title_sort |
High shear dispersion of tracers in polyolefins for improving their detection |
author |
Massardier,Valérie |
author_facet |
Massardier,Valérie Louizi,Molka Maris,Elisabeth Froelich,Daniel |
author_role |
author |
author2 |
Louizi,Molka Maris,Elisabeth Froelich,Daniel |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Massardier,Valérie Louizi,Molka Maris,Elisabeth Froelich,Daniel |
dc.subject.por.fl_str_mv |
tracers polyolefins automated sorting UV fluorescence high shear extrusion recyclability |
topic |
tracers polyolefins automated sorting UV fluorescence high shear extrusion recyclability |
description |
Abstract An efficient recycling of end-of-life products is of crucial interest from an economical and ecological point of view. However, the near infrared spectroscopy often used for the optic sorting processes is limited because of the absorption of carbon black present in black plastics and as it only sorts as a function of chemical formulas. The tracing technology developed in this study is based on the dispersion of lanthanide complexes particles into polymers to give them a code that can be related to their formulation and viscosity that are important parameters for their re-processing. As the success of this technology is conditioned by achieving a fine dispersion of the tracer particles, we also focus on accomplishing a fine dispersion of tracer particles by using a high shear process. Processing under high shear rate (N= 800 rpm) has proved to play a determining role in dispersing finely and homogenously tracer particles within PP matrix. Thanks to the good quality of dispersion, the detection of three tracers at a level of 0.1 wt% has been successfully achieved, even in black matrices for an acquisition time of 10 ms. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-01 |
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=S0104-14282015000500008 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282015000500008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0104-1428.1974 |
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.25 n.5 2015 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 |
_version_ |
1754212589090373632 |