Revealing the impact of viscoelastic characteristics on performance parameters of UV-crosslinked hotmelt pressure-sensitive adhesives : insights from time-temperature superposition analysis

Guder, Marian; Günther, Roman; Bremgartner, Katharina; Senn, Nicole; Brändli, Christof

doi:10.3390/polym16152123

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-31233

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Revealing the impact of viscoelastic characteristics on performance parameters of UV-crosslinked hotmelt pressure-sensitive adhesives : insights from time-temperature superposition analysis
Authors:	Guder, Marian Günther, Roman Bremgartner, Katharina Senn, Nicole Brändli, Christof
et. al:	No
DOI:	10.3390/polym16152123 10.21256/zhaw-31233
Published in:	Polymers
Volume(Issue):	16
Issue:	15
Page(s):	2123
Issue Date:	22-Jul-2024
Publisher / Ed. Institution:	MDPI
ISSN:	2073-4360
Language:	English
Subjects:	Pressure-sensitive adhesives (PSA); Rheology; Viscoelastic properties; UV-triggered crosslinking; Time-temperature superposition (TTS)
Subject (DDC):	660: Chemical engineering
Abstract:	This study emphasizes the influential role of rheology in decoding the viscoelastic properties of pressure-sensitive adhesives (PSAs) vital to predicting key application features such as shear, tack, and peel, depending on the flow characteristics of PSAs during bonding and debonding processes. By applying the principle of time-temperature superposition (TTS), we extend the scope of our frequency analysis, surpassing the technical constraints of the available apparatus. Our exploration aims to uncover the general correlations between PSAs’ viscoelastic properties and their performance in end-use applications. Initially, the adhesive performance and viscoelastic properties of a UV-crosslinkable styrene-butadiene-styrene (SBS) model adhesive prior and subsequent to UV irradiation were examined. The subsequent crosslinking reaction increased cohesive strength and heat resistance, although tack and peel strength observed a substantial decline. We successfully demonstrated these effects by logging the viscoelastic properties, specifically the storage modulus G’ at lower frequencies, which mirrors the shear strength at higher temperatures and the shift in the tan δ peak to represent each PSA’s tack. These correlations were partially reflected in three commercial UV crosslinkable acrylic PSA products, although the effect of UV irradiation was less distinctive. This study also revealed the challenges in predicting tack and peel strength, which result from a complex interplay of bonding and debonding processes. Our findings reinforce the necessity for more sophisticated analysis techniques and models that can accurately predict the end-use performance of PSAs across different physical structures and chemical compositions. Further research is needed to develop these predictive models, which may reduce the need for labor-intensive testing under real-life conditions.
URI:	https://digitalcollection.zhaw.ch/handle/11475/31233
Fulltext version:	Published version
License (according to publishing contract):	CC BY 4.0: Attribution 4.0 International
Departement:	School of Engineering
Organisational Unit:	Institute of Materials and Process Engineering (IMPE)
Appears in collections:	Publikationen School of Engineering

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Guder, M., Günther, R., Bremgartner, K., Senn, N., & Brändli, C. (2024). Revealing the impact of viscoelastic characteristics on performance parameters of UV-crosslinked hotmelt pressure-sensitive adhesives : insights from time-temperature superposition analysis. Polymers, 16(15), 2123. https://doi.org/10.3390/polym16152123

Guder, M. et al. (2024) ‘Revealing the impact of viscoelastic characteristics on performance parameters of UV-crosslinked hotmelt pressure-sensitive adhesives : insights from time-temperature superposition analysis’, Polymers, 16(15), p. 2123. Available at: https://doi.org/10.3390/polym16152123.

M. Guder, R. Günther, K. Bremgartner, N. Senn, and C. Brändli, “Revealing the impact of viscoelastic characteristics on performance parameters of UV-crosslinked hotmelt pressure-sensitive adhesives : insights from time-temperature superposition analysis,” Polymers, vol. 16, no. 15, p. 2123, Jul. 2024, doi: 10.3390/polym16152123.

GUDER, Marian, Roman GÜNTHER, Katharina BREMGARTNER, Nicole SENN und Christof BRÄNDLI, 2024. Revealing the impact of viscoelastic characteristics on performance parameters of UV-crosslinked hotmelt pressure-sensitive adhesives : insights from time-temperature superposition analysis. Polymers. 22 Juli 2024. Bd. 16, Nr. 15, S. 2123. DOI 10.3390/polym16152123

Guder, Marian, Roman Günther, Katharina Bremgartner, Nicole Senn, and Christof Brändli. 2024. “Revealing the Impact of Viscoelastic Characteristics on Performance Parameters of UV-Crosslinked Hotmelt Pressure-Sensitive Adhesives : Insights from Time-Temperature Superposition Analysis.” Polymers 16 (15): 2123. https://doi.org/10.3390/polym16152123.

Guder, Marian, et al. “Revealing the Impact of Viscoelastic Characteristics on Performance Parameters of UV-Crosslinked Hotmelt Pressure-Sensitive Adhesives : Insights from Time-Temperature Superposition Analysis.” Polymers, vol. 16, no. 15, July 2024, p. 2123, https://doi.org/10.3390/polym16152123.