Tensile and structural properties of natural rubber vulcanizates with different mastication times
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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=S0104-14282021000100403 |
Resumo: | Abstract Mastication reduced the molecular weight of natural rubber (NR). This would affect the tensile properties and strain-induced crystallization of the rubber vulcanizates due to the structural changes of the rubber molecules. In this study, influences of mastication time on tensile response, deformation-induced crystallization, and structural effects of crosslinked NR were investigated. The crystallization behavior and structural changes during stretching were studied by means of wide angle X-ray scattering (WAXS) and small angle X-ray scattering (SAXS). Increased mastication time significantly affected modulus at specified strain and upturn point of strain-induced crystallization of the crosslinked samples while the tensile strength was influenced slightly by mastication. During stretching, degree of crystallinity at given strain was found to decrease with increasing mastication time, while the crystallite size was reduced. Moreover, the size of crosslinked network structures induced by crosslinking also decreased slightly with increasing mastication time, as suggested by SAXS measurement. |
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Tensile and structural properties of natural rubber vulcanizates with different mastication timesmasticationnatural rubberstrain-induced crystallizationtensile propertiesAbstract Mastication reduced the molecular weight of natural rubber (NR). This would affect the tensile properties and strain-induced crystallization of the rubber vulcanizates due to the structural changes of the rubber molecules. In this study, influences of mastication time on tensile response, deformation-induced crystallization, and structural effects of crosslinked NR were investigated. The crystallization behavior and structural changes during stretching were studied by means of wide angle X-ray scattering (WAXS) and small angle X-ray scattering (SAXS). Increased mastication time significantly affected modulus at specified strain and upturn point of strain-induced crystallization of the crosslinked samples while the tensile strength was influenced slightly by mastication. During stretching, degree of crystallinity at given strain was found to decrease with increasing mastication time, while the crystallite size was reduced. Moreover, the size of crosslinked network structures induced by crosslinking also decreased slightly with increasing mastication time, as suggested by SAXS measurement.Associação Brasileira de Polímeros2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000100403Polímeros v.31 n.1 2021reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.1590/0104-1428.09120info:eu-repo/semantics/openAccessHayeemasae,NabilSoontaranon,SiriwatRasidi,Mohamad Syahmie MohamadMasa,Abdulhakimeng2021-05-07T00:00:00Zoai:scielo:S0104-14282021000100403Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2021-05-07T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false |
dc.title.none.fl_str_mv |
Tensile and structural properties of natural rubber vulcanizates with different mastication times |
title |
Tensile and structural properties of natural rubber vulcanizates with different mastication times |
spellingShingle |
Tensile and structural properties of natural rubber vulcanizates with different mastication times Hayeemasae,Nabil mastication natural rubber strain-induced crystallization tensile properties |
title_short |
Tensile and structural properties of natural rubber vulcanizates with different mastication times |
title_full |
Tensile and structural properties of natural rubber vulcanizates with different mastication times |
title_fullStr |
Tensile and structural properties of natural rubber vulcanizates with different mastication times |
title_full_unstemmed |
Tensile and structural properties of natural rubber vulcanizates with different mastication times |
title_sort |
Tensile and structural properties of natural rubber vulcanizates with different mastication times |
author |
Hayeemasae,Nabil |
author_facet |
Hayeemasae,Nabil Soontaranon,Siriwat Rasidi,Mohamad Syahmie Mohamad Masa,Abdulhakim |
author_role |
author |
author2 |
Soontaranon,Siriwat Rasidi,Mohamad Syahmie Mohamad Masa,Abdulhakim |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Hayeemasae,Nabil Soontaranon,Siriwat Rasidi,Mohamad Syahmie Mohamad Masa,Abdulhakim |
dc.subject.por.fl_str_mv |
mastication natural rubber strain-induced crystallization tensile properties |
topic |
mastication natural rubber strain-induced crystallization tensile properties |
description |
Abstract Mastication reduced the molecular weight of natural rubber (NR). This would affect the tensile properties and strain-induced crystallization of the rubber vulcanizates due to the structural changes of the rubber molecules. In this study, influences of mastication time on tensile response, deformation-induced crystallization, and structural effects of crosslinked NR were investigated. The crystallization behavior and structural changes during stretching were studied by means of wide angle X-ray scattering (WAXS) and small angle X-ray scattering (SAXS). Increased mastication time significantly affected modulus at specified strain and upturn point of strain-induced crystallization of the crosslinked samples while the tensile strength was influenced slightly by mastication. During stretching, degree of crystallinity at given strain was found to decrease with increasing mastication time, while the crystallite size was reduced. Moreover, the size of crosslinked network structures induced by crosslinking also decreased slightly with increasing mastication time, as suggested by SAXS measurement. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
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=S0104-14282021000100403 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000100403 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0104-1428.09120 |
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.31 n.1 2021 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_ |
1754212591303917568 |