Changes in mechanical properties due to gamma irradiation of high-density polyethylene (HDPE)
Main Author: | |
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Publication Date: | 2007 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Brazilian Journal of Chemical Engineering |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322007000200010 |
Summary: | This paper presents an experimental analysis of the effect of dose and dose rate parameters during gamma irradiation of high-density polyethylene (HDPE) samples. Considerations concerning the influence of these parameters on HDPE mechanical strength properties as a result of the predominance of oxidative degradation or of cross-linking are presented. The experimental results show an improvement of HDPE mechanical strength as dose increases, indicating the predominance of cross-linking over oxidative degradation and that lower doses are necessary to obtain a similar change in resistance parameters when radiation is applied at lower dose rates, showing that gamma radiation affects the HDPE in a more efficient way at lower dose rates. |
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Brazilian Journal of Chemical Engineering |
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Changes in mechanical properties due to gamma irradiation of high-density polyethylene (HDPE)Gamma irradiationPolymersMechanical propertiesThis paper presents an experimental analysis of the effect of dose and dose rate parameters during gamma irradiation of high-density polyethylene (HDPE) samples. Considerations concerning the influence of these parameters on HDPE mechanical strength properties as a result of the predominance of oxidative degradation or of cross-linking are presented. The experimental results show an improvement of HDPE mechanical strength as dose increases, indicating the predominance of cross-linking over oxidative degradation and that lower doses are necessary to obtain a similar change in resistance parameters when radiation is applied at lower dose rates, showing that gamma radiation affects the HDPE in a more efficient way at lower dose rates.Brazilian Society of Chemical Engineering2007-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322007000200010Brazilian Journal of Chemical Engineering v.24 n.2 2007reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322007000200010info:eu-repo/semantics/openAccessCota,S. S.Vasconcelos,V.Senne Jr.,M.Carvalho,L. L.Rezende,D. B.Côrrea,R. F.eng2007-07-23T00:00:00Zoai:scielo:S0104-66322007000200010Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2007-07-23T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Changes in mechanical properties due to gamma irradiation of high-density polyethylene (HDPE) |
title |
Changes in mechanical properties due to gamma irradiation of high-density polyethylene (HDPE) |
spellingShingle |
Changes in mechanical properties due to gamma irradiation of high-density polyethylene (HDPE) Cota,S. S. Gamma irradiation Polymers Mechanical properties |
title_short |
Changes in mechanical properties due to gamma irradiation of high-density polyethylene (HDPE) |
title_full |
Changes in mechanical properties due to gamma irradiation of high-density polyethylene (HDPE) |
title_fullStr |
Changes in mechanical properties due to gamma irradiation of high-density polyethylene (HDPE) |
title_full_unstemmed |
Changes in mechanical properties due to gamma irradiation of high-density polyethylene (HDPE) |
title_sort |
Changes in mechanical properties due to gamma irradiation of high-density polyethylene (HDPE) |
author |
Cota,S. S. |
author_facet |
Cota,S. S. Vasconcelos,V. Senne Jr.,M. Carvalho,L. L. Rezende,D. B. Côrrea,R. F. |
author_role |
author |
author2 |
Vasconcelos,V. Senne Jr.,M. Carvalho,L. L. Rezende,D. B. Côrrea,R. F. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Cota,S. S. Vasconcelos,V. Senne Jr.,M. Carvalho,L. L. Rezende,D. B. Côrrea,R. F. |
dc.subject.por.fl_str_mv |
Gamma irradiation Polymers Mechanical properties |
topic |
Gamma irradiation Polymers Mechanical properties |
description |
This paper presents an experimental analysis of the effect of dose and dose rate parameters during gamma irradiation of high-density polyethylene (HDPE) samples. Considerations concerning the influence of these parameters on HDPE mechanical strength properties as a result of the predominance of oxidative degradation or of cross-linking are presented. The experimental results show an improvement of HDPE mechanical strength as dose increases, indicating the predominance of cross-linking over oxidative degradation and that lower doses are necessary to obtain a similar change in resistance parameters when radiation is applied at lower dose rates, showing that gamma radiation affects the HDPE in a more efficient way at lower dose rates. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-06-01 |
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=S0104-66322007000200010 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322007000200010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322007000200010 |
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 |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
Brazilian Journal of Chemical Engineering v.24 n.2 2007 reponame:Brazilian Journal of Chemical Engineering instname:Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
instname_str |
Associação Brasileira de Engenharia Química (ABEQ) |
instacron_str |
ABEQ |
institution |
ABEQ |
reponame_str |
Brazilian Journal of Chemical Engineering |
collection |
Brazilian Journal of Chemical Engineering |
repository.name.fl_str_mv |
Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ) |
repository.mail.fl_str_mv |
rgiudici@usp.br||rgiudici@usp.br |
_version_ |
1754213172299956224 |