Research of liquid contaminants influence on adhesive bond strength applied in agricultural machine construction
Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Science, Kamýcká ¹²⁹, ¹⁶⁵²¹ Prague, Czech Republic; e-mail: email@example.com
An adhesive bonding technology is a prospective bonding technology of diverse materials. Namely the research in the sphere of the degradation aspects affecting the adhesive bond during the technical life of the adhesive bonded complex is essential. Mineral and industrial fertilisers can be included as significant degradation agents. The aim of the research was to find out the relevant knowledge in the sphere of the degradation of the adhesive bonds placed in the water bath, the oil bath and the solution of the mineral and industrial fertilisers. The experiment’s results bring knowledge for producers of agricultural machines introducing adhesive bonding technology into their production programme. Two-component constructional epoxy adhesives were tested which were placed into the water bath, the oil bath and the solution of mineral and industrial fertilisers. Some agents caused such changes in the adhesive that the adhesive bond strength decreased to zero value already after ⁹0 days. Significant changes of the adhesive bond strength occurred in the interval ¹⁵–⁴⁵ days depending on the adhesive and agents. The strength decrease was connected with the change of a failure area from cohesive one to combined and then to adhesive one. The research showed that it came to diffuse seepage and to a partial corrosion of the adhesive bonded steel samples.