The logistics aspects influencing the resultant strength of adhesives at practical application

M. Müller* and P. Valášek

Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Science, Kamýcká 129, 16521 Prague, Czech Republic; *Correspondence: muller@tf.czu.cz

Abstract:

Practical application of construction adhesives is required under various climatic conditions and in various environments. The temperature of an environment alone is regarded a limiting factor from the logistics point of view influencing the effectiveness of subsequent application, namely in winter months. The aim of the experimental part is to define the influence of temperature as an essential logistics factor subsequently influencing the resultant strength of the adhesive bond at its application. Further, redress of adhesives properties after extreme temperatures of storing, transit, etc. was investigated. Higher temperatures reached during the logistics flows negatively influence the adhesive bond strength. The temperature also influences change in the failure area.

Key words:

Assessment of bonding quality for several commercially available adhesives

M. Müller¹,* and P. Valášek²

¹Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Science, Kamýcká 129, 16521 Prague, Czech Republic;
*Correspondence: muller@tf.czu.cz
²Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Science, Kamýcká 129, 16521 Prague, Czech Republic

Abstract:

An adhesive bonding technology is a prospective bonding technology of diverse materials. For successful practical application, knowledge gained by studying factors that significantly influence mechanical properties of the adhesive bonds are essential. The adhesive bond rise is influenced by an increase of chemical – physical links. The adhesive bonding strengthens its position in a number of agricultural machines and tools. The aim of the experiment is to create the adhesive bond which provides the maximum strength and quality for single combination of the adhesive and adherents, usually at minimum costs. This aim can be reached by describing the process of the hardening and ensuring the optimum adhesive layer. Describing the adhesive bonding process and its factors is essential for companies producing agricultural machinery. From the results of the experiment there is visible a significant fall of the tensile shear strength of the adhesive bond with increasing time needed for the adhesive bond creation. The experiment results also certified the negative influence of the unequal adhesive layer on the strength fall but also a huge dispersion variance of results.

Key words:

adhesive bond creation, adhesive layer thickness, bonding technology, time