Communications - Scientific Letters of the University of Zilina 2024, 26(2):B118-B127 | DOI: 10.26552/com.C.2024.024

Effect of Environmental Conditions on Curing of Polyurethane Adhesive Investigated with Ftir Analysis

Péter I. Kovács ORCID...1, 2, Zoltán Weltsch ORCID...2, Miklós Berczeli ORCID...1, *
1 Department of Innovative Vehicles and Materials, GAMF faculty of Engineering and Computer Science, John von Neumann University, Hungary
2 Department of Road and Rail Vehicles, Department of Materials Science and Engineering, Szechenyi Istvan University, Hungary

The use and significance of adhesives in various industries are explored, highlighting the growth of the adhesive market and the crucial role of time in adhesive bonding. The composition of adhesives, particularly polyurethane adhesives (PUR), is detailed, emphasizing their sensitivity to environmental factors, like moisture and UV radiation. Various factors influencing adhesive properties, such as reactivity and curing-induced shrinkage, are discussed, along with the importance of catalysts in adjusting reaction rates. One-component moisture-curable PUR adhesives are presented as versatile and continually improving alternatives in structural adhesive applications. The research's focus was to investigate the curing speed of Sikaflex-252 1-component PUR structural adhesive under different conditions, including room temperature, room temperature with ~30 % humidity, and room temperature with ~100 % humidity.

Keywords: polyurethane, curing, influence of environment
Grants and funding:


This work was supported by the 2020-1.1.2-PIACI-KFI-2021-00260 Grant. The authors are grateful to the scholars cited in this paper, and their research results have given a lot of inspiration to this work. Special thanks to the department of Innovative Vehicles and Materials at John von Neumann university for their support.

Conflicts of interest:


The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Received: November 8, 2023; Accepted: December 21, 2023; Prepublished online: March 7, 2024; Published: April 2, 2024  Show citation

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Kovács, P.I., Weltsch, Z., & Berczeli, M. (2024). Effect of Environmental Conditions on Curing of Polyurethane Adhesive Investigated with Ftir Analysis. Communications - Scientific Letters of the University of Zilina, 26(2), B118-127. doi: 10.26552/com.C.2024.024
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