{"id":33,"date":"2016-11-07T01:57:32","date_gmt":"2016-11-07T01:57:32","guid":{"rendered":"http:\/\/fluidslab.chemeng.upatras.gr\/?p=33"},"modified":"2016-11-08T07:50:25","modified_gmt":"2016-11-08T07:50:25","slug":"pressure-sensitive-adhesives","status":"publish","type":"post","link":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/2016\/11\/07\/pressure-sensitive-adhesives\/","title":{"rendered":"Pressure Sensitive Adhesives"},"content":{"rendered":"<p>PSAs were studied in the EU-funded project \u201cMODIFY\u201d aiming at building fundamental understanding of the role of material structure and properties in their performance. We modeled their mechanical test according to which a film is placed between two parallel disks. The disks are pulled away from each other and cavitating bubbles arise, expand and lead to a fibrilar structure and failure of the adhesive. We examine how this mechanism is affected by changes in the material rheological properties. The figure on the right is a snapshot of the simulations of an experiment reported by a French collaborator, where 163 bubbles were seen to cavitate. The dynamic and 3D simulation results are in very good agreement with experiments.<\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-92\" src=\"https:\/\/fluidslab.chemeng.upatras.gr\/wp-content\/uploads\/2016\/10\/addhesives.jpg\" alt=\"adhesives\" width=\"100%\"  \/><\/p>\n<p>Top-left view: 163 Cavitating bubbles from the experiment by the French collaborating group. Bottom-left view: Cavitating bubbles from our simulations. Right-view: Detail of the cavitating bubbles<\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-93\" src=\"https:\/\/fluidslab.chemeng.upatras.gr\/wp-content\/uploads\/2016\/10\/addhesives2.jpg\" alt=\"adhesives2\" width=\"100%\"  \/><\/p>\n<p>Cross sections of the mid plane of a cylindrical sample of PSA that contains an arbitrary number of deformable cavities, for different nominal elongational strains (\u03b5) .<\/p>\n ","protected":false},"excerpt":{"rendered":"<p>PSAs were studied in the EU-funded project \u201cMODIFY\u201d aiming at building fundamental understanding of the role of material structure and properties in their performance. We modeled their mechanical test according to which a film is placed between two parallel disks. The disks are pulled away from each other and cavitating bubbles arise, expand and lead [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":167,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[7,6],"tags":[],"class_list":{"0":"post-33","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-projects","8":"category-research","9":"czr-hentry"},"_links":{"self":[{"href":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/wp-json\/wp\/v2\/posts\/33","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/wp-json\/wp\/v2\/comments?post=33"}],"version-history":[{"count":5,"href":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/wp-json\/wp\/v2\/posts\/33\/revisions"}],"predecessor-version":[{"id":792,"href":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/wp-json\/wp\/v2\/posts\/33\/revisions\/792"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/wp-json\/wp\/v2\/media\/167"}],"wp:attachment":[{"href":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/wp-json\/wp\/v2\/media?parent=33"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/wp-json\/wp\/v2\/categories?post=33"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fluidslab.chemeng.upatras.gr\/index.php\/wp-json\/wp\/v2\/tags?post=33"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}