1.0Certechhttps://www.certech.be/en/info@certech.behttps://www.certech.be/en/author/infocertech-be/rich600338<blockquote class="wp-embedded-content" data-secret="bP1ZKsUenZ"><a href="https://www.certech.be/en/extensional-rheology/">Extensional rheology</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.certech.be/en/extensional-rheology/embed/#?secret=bP1ZKsUenZ" width="600" height="338" title="“Extensional rheology” — Certech" data-secret="bP1ZKsUenZ" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.certech.be/wp-includes/js/wp-embed.min.js </script> https://www.certech.be/files/uploads/2026/03/rheometre-extensionnel-1.jpg701465[vc_row][vc_column][vc_column_text]Extensional rheology plays a crucial role in understanding material behavior in processes such as coating, fiber spinning, blow molding, and foam production. Unlike conventional shear rheology, extensional measurements provide key insights into temperature stability, shrinkage, relaxation dynamics, brittleness, and the adhesion or peel strength of films and fibers. This method is particularly valuable for low