{"id":255,"date":"2020-05-27T01:04:48","date_gmt":"2020-05-26T23:04:48","guid":{"rendered":"https:\/\/www.legoplast.com\/?p=255"},"modified":"2020-05-28T17:59:57","modified_gmt":"2020-05-28T15:59:57","slug":"origines-et-caracteristiques-du-polypropylene","status":"publish","type":"post","link":"https:\/\/www.legoplast.com\/fr\/origini-e-caratteristiche-del-polipropilene\/","title":{"rendered":"Origines et caract\u00e9ristiques du polypropyl\u00e8ne"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"537\" src=\"https:\/\/www.legoplast.com\/wp-content\/uploads\/2020\/05\/1170_article_legoplast-1024x537.jpg\" alt=\"\" class=\"wp-image-257\" srcset=\"https:\/\/www.legoplast.com\/wp-content\/uploads\/2020\/05\/1170_article_legoplast-1024x537.jpg 1024w, https:\/\/www.legoplast.com\/wp-content\/uploads\/2020\/05\/1170_article_legoplast-300x157.jpg 300w, https:\/\/www.legoplast.com\/wp-content\/uploads\/2020\/05\/1170_article_legoplast-768x403.jpg 768w, https:\/\/www.legoplast.com\/wp-content\/uploads\/2020\/05\/1170_article_legoplast.jpg 1170w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>Polybags in polipropilene<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Le polypropyl\u00e8ne (abr\u00e9g\u00e9 en PP) est un polym\u00e8re thermoplastique g\u00e9n\u00e9ralement r\u00e9sistant et flexible, utilis\u00e9 dans une vaste gamme d\u2019applications. Le produit le plus int\u00e9ressant d\u2019un point de vue commercial est celui isotactique: il s\u2019agit d\u2019un polym\u00e8re semi-cristallin caract\u00e9ris\u00e9 par une r\u00e9sistance \u00e9lev\u00e9e \u00e0 la rupture, une faible densit\u00e9, ainsi qu\u2019une bonne r\u00e9sistance thermique et \u00e0 l\u2019abrasion. Il a \u00e9t\u00e9 cr\u00e9\u00e9 en 1954 par l\u2019Italien Giulio Natta en collaboration avec l\u2019Allemand Karl Ziegler, ce qui lui a valu le prix Nobel de chimie en 1964.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Le polypropyl\u00e8ne a connu un grand succ\u00e8s dans l\u2019industrie de la <a href=\"http:\/\/it.wikipedia.org\/wiki\/Plastica\" target=\"_self\">plastique<\/a> italienne et mondiale: de nombreux objets du quotidien tels que les paillassons, les \u00e9gouttoirs, les tableaux de bord automobiles, les filets anti-gr\u00eale et les bo\u00eetiers de CD sont fabriqu\u00e9s en polypropyl\u00e8ne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Depuis plus de vingt ans, Legoplast a int\u00e9gr\u00e9 dans sa production l\u2019utilisation du polypropyl\u00e8ne pour la fabrication des pochettes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cela s\u2019explique par les nombreux avantages li\u00e9s \u00e0 la fabrication et \u00e0 l\u2019achat de produits en polypropyl\u00e8ne: c\u2019est un mat\u00e9riau non toxique, inodore, tr\u00e8s l\u00e9ger, pouvant \u00eatre st\u00e9rilis\u00e9 (raison pour laquelle il est utilis\u00e9 pour les contenants alimentaires), r\u00e9sistant \u00e0 la chaleur et \u00e0 l\u2019humidit\u00e9, n\u2019absorbant pas l\u2019eau et surtout \u00e9conomique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour toutes ces raisons, Legoplast investit et croit en ce mat\u00e9riau.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Son utilisation permet en outre d\u2019obtenir des pochettes aux caract\u00e9ristiques uniques telles que: des \u00e9paisseurs \u00e9lev\u00e9es, une grande transparence, des mati\u00e8res premi\u00e8res tr\u00e8s souples et conformes \u00e0 la r\u00e9glementation REACH.<\/p>","protected":false},"excerpt":{"rendered":"<p>Il polipropilene (abbreviato in PP) \u00e8 un polimero termoplastico normalmente resistente e flessibile usato in una vasta gamma di applicazioni. Il prodotto pi\u00f9 interessante dal punto di vista commerciale \u00e8 quello isotattico: \u00e8 un polimero semicristallino caratterizzato da un elevato carico di rottura, una bassa densit\u00e0, una buona resistenza termica e all&#8217;abrasione. Venne&nbsp; creato nel&nbsp; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":257,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[11],"tags":[13,12],"class_list":["post-255","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-materiali","tag-giulio-natta","tag-polipropilene"],"_links":{"self":[{"href":"https:\/\/www.legoplast.com\/fr\/wp-json\/wp\/v2\/posts\/255","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.legoplast.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.legoplast.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.legoplast.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.legoplast.com\/fr\/wp-json\/wp\/v2\/comments?post=255"}],"version-history":[{"count":3,"href":"https:\/\/www.legoplast.com\/fr\/wp-json\/wp\/v2\/posts\/255\/revisions"}],"predecessor-version":[{"id":269,"href":"https:\/\/www.legoplast.com\/fr\/wp-json\/wp\/v2\/posts\/255\/revisions\/269"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.legoplast.com\/fr\/wp-json\/wp\/v2\/media\/257"}],"wp:attachment":[{"href":"https:\/\/www.legoplast.com\/fr\/wp-json\/wp\/v2\/media?parent=255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.legoplast.com\/fr\/wp-json\/wp\/v2\/categories?post=255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.legoplast.com\/fr\/wp-json\/wp\/v2\/tags?post=255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}