RheoTack - An approach to investigate retraction rate dependent detaching behavior of pressure sensitive adhesives
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F22%3A63552700" target="_blank" >RIV/70883521:28110/22:63552700 - isvavai.cz</a>
Result on the web
<a href="https://sor.scitation.org/doi/10.1122/8.0000405" target="_blank" >https://sor.scitation.org/doi/10.1122/8.0000405</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1122/8.0000405" target="_blank" >10.1122/8.0000405</a>
Alternative languages
Result language
angličtina
Original language name
RheoTack - An approach to investigate retraction rate dependent detaching behavior of pressure sensitive adhesives
Original language description
Characterization methods of pressure sensitive adhesives (PSA) originate from technical bonding and do not cover relevant data for the development and quality assurance of medical applications, where PSA with flexible backing layers are adopted to human skin. In this study, a new method called RheoTack is developed to determine (mechanically and optically) an adhesion and detaching behavior of flexible and transparent PSA based patches. Transdermal therapeutic systems (TTS) consisting of silicone-based PSAs on a flexible and transparent backing layer were tested on a rotational rheometer with an 8 mm plate as a probe rod at retraction speeds of 0.01, 0.1, and 1 mm/s with respect to their adhesion and detaching behavior in terms of force-retraction displacement curves. The curves consist of a compression phase to affirm wetting; a tensile deformation phase intercepting stretching, cavity, and fibril formation; and a failure phase with detaching. Their analysis provides values for stiffness, force, and displacement of the beginning of fibril formation, force and displacement of the beginning of a failure due to fibril breakage and detaching, as well as corresponding activation energies. All these parameters exhibit the pronounced dependency on the retraction speed. The force-retraction displacement curves together with the simultaneous video recordings of the TTS deformation from three different angles (three cameras) provide deeper insight into the deformation processes and allow for interpreting the properties' characteristics for PSA applications.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20302 - Applied mechanics
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Rheology
ISSN
0148-6055
e-ISSN
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Volume of the periodical
66
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
505-514
UT code for WoS article
000779206500002
EID of the result in the Scopus database
2-s2.0-85127482755