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Verification of setting speed and building adhesion of PU adhesives depending on external conditions
Slatinská, Jana ; Žák, Ladislav (referee) ; Kubíček, Jaroslav (advisor)
The company IFE a. S. (Knorr - Bremse) in Modřice needed to verify the curing process of glued joints with the used adhesive Sikaflex®-265. The aim was to find out whether a controlled environment is needed for curing and mainly find out influence of factors on the curing process and the velocity of building adhesion. The main factors that were investigated were temperature, humidity, the ratio of the Sikabooster® P-50 to the tested adhesive and the curing time. The result then shows which factors have an influence and which only minimal. The aim was also to verify the strength of the joint, which is stated by the manufacturer after a specific time. The impact on open technology time has not been measured.
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Accelerate handling strength in 2K PUR adhesives
Slatinská, Jana ; Žák, Ladislav (referee) ; Kubíček, Jaroslav (advisor)
This paper is devoted to accelerating the time to obtain the handling strength of two-component polyurethane adhesive, which was newly purchased by the company Magna Exterios (Bohemia) and had to be tested. In order to speed up the analysis of the problem, methods of IR emitters and temperature chambers were selected to be compared with curing using only the ambient atmosphere. In the second part of this paper, the maximum strength of the bond which withstand the test without damage was measured. The results show that the method of accelerating curing process using an IR emitter is the fastest, but the economic side of things must be taken into account, because it is also the most expensive option of acceleration. The temperature chamber is almost twice as slower, but cheaper. At the end of the thesis, the economic efficiency of the new adhesive line solution is evaluated and how much money can be ideally saved.
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Verification of setting speed and building adhesion of PU adhesives depending on external conditions
Slatinská, Jana ; Žák, Ladislav (referee) ; Kubíček, Jaroslav (advisor)
The company IFE a. S. (Knorr - Bremse) in Modřice needed to verify the curing process of glued joints with the used adhesive Sikaflex®-265. The aim was to find out whether a controlled environment is needed for curing and mainly find out influence of factors on the curing process and the velocity of building adhesion. The main factors that were investigated were temperature, humidity, the ratio of the Sikabooster® P-50 to the tested adhesive and the curing time. The result then shows which factors have an influence and which only minimal. The aim was also to verify the strength of the joint, which is stated by the manufacturer after a specific time. The impact on open technology time has not been measured.
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|
|
Accelerate handling strength in 2K PUR adhesives
Slatinská, Jana ; Žák, Ladislav (referee) ; Kubíček, Jaroslav (advisor)
This paper is devoted to accelerating the time to obtain the handling strength of two-component polyurethane adhesive, which was newly purchased by the company Magna Exterios (Bohemia) and had to be tested. In order to speed up the analysis of the problem, methods of IR emitters and temperature chambers were selected to be compared with curing using only the ambient atmosphere. In the second part of this paper, the maximum strength of the bond which withstand the test without damage was measured. The results show that the method of accelerating curing process using an IR emitter is the fastest, but the economic side of things must be taken into account, because it is also the most expensive option of acceleration. The temperature chamber is almost twice as slower, but cheaper. At the end of the thesis, the economic efficiency of the new adhesive line solution is evaluated and how much money can be ideally saved.
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