National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Bonding of anodized aluminum
Mihulka, Jan ; Slováček, Marek (referee) ; Kubíček, Jaroslav (advisor)
The aim of the work is to assess the effect of surface treatment of anodization on adhesion of adhesive and overall strength of the joint. For the experimental part, four adhesives were chosen namely SikaPower 1554, SikaPower 1200, Ergo 7430 and Weldyx Professional 5 black. Using these, samples of anodized aluminium strips were made and subjected to shear strength and tensile tests. For both experiments, Sikapower 1200 adhesive came out best in terms of strength. The worst performer was Ergo 7430. When checking the fractures that occurred, it was found that almost all the fractures were cohesive in nature. This result leads us to conclude that the adhesion between the adhesive and the anodized surface was very good and led to satisfactory bond strength results.
A comparison of different types of epoxy adhesives
Mihulka, Jan ; Žák, Ladislav (referee) ; Kubíček, Jaroslav (advisor)
This thesis is focused on a bonding technology. The first part describes the theory of the bonding and it is discussed the main areas of this technology. The experimental part deals with the comparison of four two-component epoxy adhesives in terms of shear strength. For the experiment it had been selected adhesives: Bison Epoxy Universal, Pattex Repair Epoxy Ultra Strong 5 min, Ergo 7430 and Letoxit LH 232. After performing the experiment, it was shown that Bison Epoxy Universal and Pattex Repair Epoxy Ultra Strong 5 min achieved the strengths stated in the datasheet. The strengths of Ergo 7430 and Letoxit LH 232 adhesives was lower than stated in their technological products, thefore, did not meet our expectations. The reason for not achieving the declared strength was probably poor dosing or insufficient mixing of ingredients.

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