Natural ageing of polyaramide fiber from ballistic armor
Autor(a) principal: | |
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Data de Publicação: | 2019 |
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=S0104-14282019000100403 |
Resumo: | Abstract Ballistic armor has been manufactured primarily based on polyaramide (Kevlar and Twaron) or Dyneema but the lifespan warranty in Brazil is only 5 years and after this time period they are incinerated or comminuted and ground up. This study aims to evaluate the changes on the physical, mechanical and morphological properties of polyaramide fibers of ballistic armor after natural aging. These samples with different fabrication (2005 and 2010) and usage time were exposed to natural weathering in the city of Porto Alegre, southern Brazil, during the period of one year. Morphology fiber results surfaced after ageing, it showed fiber swelling, stress cracking and defibrillation, and the results of the mechanical tensile testing of the polyaramide fibers showed a pronounced decrease (80%) in tensile strength. It can be concluded that the weight, the dtex of the fiber and the kind of fabric can influence the degradation degree under natural exposure. |
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Natural ageing of polyaramide fiber from ballistic armorballistic armoraramid fiberspolymer degradationAbstract Ballistic armor has been manufactured primarily based on polyaramide (Kevlar and Twaron) or Dyneema but the lifespan warranty in Brazil is only 5 years and after this time period they are incinerated or comminuted and ground up. This study aims to evaluate the changes on the physical, mechanical and morphological properties of polyaramide fibers of ballistic armor after natural aging. These samples with different fabrication (2005 and 2010) and usage time were exposed to natural weathering in the city of Porto Alegre, southern Brazil, during the period of one year. Morphology fiber results surfaced after ageing, it showed fiber swelling, stress cracking and defibrillation, and the results of the mechanical tensile testing of the polyaramide fibers showed a pronounced decrease (80%) in tensile strength. It can be concluded that the weight, the dtex of the fiber and the kind of fabric can influence the degradation degree under natural exposure.Associação Brasileira de Polímeros2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282019000100403Polímeros v.29 n.1 2019reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.1590/0104-1428.05617info:eu-repo/semantics/openAccessKonarzewski,Vitor Hugo CordeiroSpiekemann,Fernando LudgeroSantana,Ruth Marlene Campomaneseng2019-03-13T00:00:00Zoai:scielo:S0104-14282019000100403Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2019-03-13T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false |
dc.title.none.fl_str_mv |
Natural ageing of polyaramide fiber from ballistic armor |
title |
Natural ageing of polyaramide fiber from ballistic armor |
spellingShingle |
Natural ageing of polyaramide fiber from ballistic armor Konarzewski,Vitor Hugo Cordeiro ballistic armor aramid fibers polymer degradation |
title_short |
Natural ageing of polyaramide fiber from ballistic armor |
title_full |
Natural ageing of polyaramide fiber from ballistic armor |
title_fullStr |
Natural ageing of polyaramide fiber from ballistic armor |
title_full_unstemmed |
Natural ageing of polyaramide fiber from ballistic armor |
title_sort |
Natural ageing of polyaramide fiber from ballistic armor |
author |
Konarzewski,Vitor Hugo Cordeiro |
author_facet |
Konarzewski,Vitor Hugo Cordeiro Spiekemann,Fernando Ludgero Santana,Ruth Marlene Campomanes |
author_role |
author |
author2 |
Spiekemann,Fernando Ludgero Santana,Ruth Marlene Campomanes |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Konarzewski,Vitor Hugo Cordeiro Spiekemann,Fernando Ludgero Santana,Ruth Marlene Campomanes |
dc.subject.por.fl_str_mv |
ballistic armor aramid fibers polymer degradation |
topic |
ballistic armor aramid fibers polymer degradation |
description |
Abstract Ballistic armor has been manufactured primarily based on polyaramide (Kevlar and Twaron) or Dyneema but the lifespan warranty in Brazil is only 5 years and after this time period they are incinerated or comminuted and ground up. This study aims to evaluate the changes on the physical, mechanical and morphological properties of polyaramide fibers of ballistic armor after natural aging. These samples with different fabrication (2005 and 2010) and usage time were exposed to natural weathering in the city of Porto Alegre, southern Brazil, during the period of one year. Morphology fiber results surfaced after ageing, it showed fiber swelling, stress cracking and defibrillation, and the results of the mechanical tensile testing of the polyaramide fibers showed a pronounced decrease (80%) in tensile strength. It can be concluded that the weight, the dtex of the fiber and the kind of fabric can influence the degradation degree under natural exposure. |
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=S0104-14282019000100403 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282019000100403 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0104-1428.05617 |
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.1 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 |
_version_ |
1754212590848835584 |