Adhesive Acrylate Metal-Glass Connections: Influence of Temperature and Thickness of Adhesive Layer

Abstract

<p>Adhesive connections are used mainly in the automotive and aerospace industry. Their considerable number of benefits and requirements given by architects and designers lead to using adhesives in civil engineering not only for a non-loadbearing structures but also for more complicated structures such as a cladding of the facades or load-bearing structures. However, a lack of knowledge prevents their wider use. The paper is focused on experimental testing of Zn-electroplated steel - glass and aluminium - glass connections under shear stress using two-component acrylate adhesive. The influence of the adhesive layer (1 mm and 3 mm) and elevated temperature (60 °C and 80 °C) on mechanical properties is investigated. Specimens with 3 mm adhesive layer thickness reached higher shear strength in comparison with specimens with 1 mm layer thickness. Shear strength (up to 30% of maximum shear strength) and stiffness decrease with elevated temperature. Good adhesion of the adhesive to glass and metal was demonstrated at room temperature. Glass adhesion failure was observed at temperature of 80 °C.</p>