Study of the Permeation to Ethylene Glycol in Flexible Tubular Adhesive Joints

摘要

Adhesive joints are currently being used throughout various industrial sectors, ranging from large-scale structures to smaller technological application, allowing them to obtain signifi-cantly more compact designs in many situations. In the present work, a tubular metal-polymer adhesive joint is designed to work in contact with a liquid at high temperature while withstand-ing large torsional deflections. The effect of the geometry of the joint, mainly the overlap length, was studied by evaluating the permeation rate to ethylene glycol. Results show that this parameter has a major influence on the behavior of the joint in terms of permeation, with this effect being most noticeable when shorter overlaps are used. Thus, a relation between the overlap length and the permeation was experimentally determined in this work.