{"id":8516,"date":"2021-12-29T12:20:28","date_gmt":"2021-12-29T11:20:28","guid":{"rendered":"http:\/\/synthese.univ-annaba.dz\/?p=8516"},"modified":"2021-12-29T12:20:57","modified_gmt":"2021-12-29T11:20:57","slug":"revue-des-interactions-physico-chimiques-du-polyethylene-extrude-sous-forme-de-tubes-avec-des-environnements-agressifs","status":"publish","type":"post","link":"https:\/\/synthese.univ-annaba.dz\/?p=8516","title":{"rendered":"Revue des interactions physico-chimiques du poly\u00e9thyl\u00e8ne extrud\u00e9 sous forme de tubes avec des environnements agressifs"},"content":{"rendered":"

Num\u00e9ro de la revue: Volume 27 , Num\u00e9ro\u00a02
\nAuteurs:\u00a0\u00a0Wafia Ghabeche1<\/sup><\/strong>, <\/strong>Kamel Chaoui2*<\/sup> <\/strong><\/p>\n

1 <\/sup>LR3MI, D\u00e9partement de G\u00e9nie Electrique, Facult\u00e9 de Technologie,<\/p>\n

Universit\u00e9 Abderrahmane Mira \u2013 Bejaia 06000, Alg\u00e9rie.<\/p>\n

2<\/sup> LR3MI, D\u00e9partement de G\u00e9nie M\u00e9canique, Facult\u00e9 de Technologie,<\/p>\n

Universit\u00e9 Badji Mokhtar \u2013 Annaba 23000, Alg\u00e9rie.<\/p>\n

 <\/p>\n

T\u00e9l\u00e9charger l’article\"p2\"<\/a><\/strong><\/p>\n

R\u00e9sum\u00e9\u00a0<\/strong><\/p>\n

Le ph\u00e9nom\u00e8ne de fissuration sous contrainte environnementale (ESC : Environmental Stress Cracking<\/em>) est l\u2019une des causes pr\u00e9pond\u00e9rantes de l\u2019endommagement des canalisations enfouies et construites en poly\u00e9thyl\u00e8ne. Plusieurs facteurs influencent l\u2019initiation et la propagation d\u2019une fissure. Entre autres, il y a la nature de l\u2019agent chimique, sa concentration, l\u2019intensit\u00e9 de la contrainte en service, la temp\u00e9rature, le temps d\u2019exposition et la qualit\u00e9 de la surface du tube. Actuellement, il existe plusieurs \u00e9tudes qui s\u2019int\u00e9ressent \u00e0 l\u2019impact de la d\u00e9gradation des tubes en poly\u00e9thyl\u00e8ne sur la dur\u00e9e de vie. Certaines \u00e9tudes insistent sur les proc\u00e9d\u00e9s de fabrication ayant pour but l\u2019optimisation des conditions op\u00e9ratoires depuis l\u2019extrusion jusqu\u2019\u00e0 l\u2019installation, alors que d\u2019autres ont pour objectif l\u2019\u00e9valuation de la d\u00e9gradation en service sous l\u2019effet de facteurs internes ainsi que l\u2019\u00e9volution des propri\u00e9t\u00e9s physico-chimiques lors du vieillissement sous l\u2019effet de facteurs externes environnementaux. Dans cet article de synth\u00e8se, nous pr\u00e9sentons des connaissances \u00e9tablies sur la pr\u00e9diction de la dur\u00e9e de vie des tubes en poly\u00e9thyl\u00e8ne et nous donnons un aper\u00e7u sur les types de vieillissements rencontr\u00e9s en service ou en laboratoire. Ces informations sont consid\u00e9r\u00e9es comme des propri\u00e9t\u00e9s li\u00e9es au mat\u00e9riau qu\u2019il faut conna\u00eetre et prendre en consid\u00e9ration lors d\u2019\u00e9tudes ESC<\/em>. Nous terminons par quelques d\u00e9tails sp\u00e9cifiques sur le ph\u00e9nom\u00e8ne de fissuration sous contrainte environnementale et les facteurs majeurs influen\u00e7ant son apparition.<\/p>\n

mots cl\u00e9 : <\/strong>Poly\u00e9thyl\u00e8ne, Milieux agressifs, Interaction, Absorption, Stress cracking, Vieillissement, Contrainte-d\u00e9formation, H\u00e9t\u00e9rog\u00e9n\u00e9it\u00e9.<\/p>\n","protected":false},"excerpt":{"rendered":"

Num\u00e9ro de la revue: Volume 27 , Num\u00e9ro\u00a02 Auteurs:\u00a0\u00a0Wafia Ghabeche1, Kamel Chaoui2* 1 LR3MI, D\u00e9partement de G\u00e9nie Electrique, Facult\u00e9 de Technologie, Universit\u00e9 Abderrahmane Mira \u2013 Bejaia 06000, Alg\u00e9rie. 2 LR3MI, D\u00e9partement de G\u00e9nie M\u00e9canique, Facult\u00e9 de Technologie, Universit\u00e9 Badji Mokhtar … Lire la suite »<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1432,1435,1436,1431,1430,1429,1433,1434],"class_list":["post-8516","post","type-post","status-publish","format-standard","hentry","category-non-classe","tag-absorption","tag-contrainte-deformation","tag-heterogeneite","tag-interaction","tag-milieux-agressifs","tag-polyethylene","tag-stress-cracking","tag-vieillissement"],"_links":{"self":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/8516","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8516"}],"version-history":[{"count":2,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/8516\/revisions"}],"predecessor-version":[{"id":8519,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/8516\/revisions\/8519"}],"wp:attachment":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}