RheoTack - Rate dependent tack behavior of pressure sensitive adhesives – effect of composition and probe geometry

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F23%3A63571118" target="_blank" >RIV/70883521:28110/23:63571118 - isvavai.cz</a>

Alternative codes found

RIV/70883521:28610/23:63571118

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

RheoTack - Rate dependent tack behavior of pressure sensitive adhesives – effect of composition and probe geometry

Original language description

Transdermal therapeutic systems (TTS) are medical patches which are used for disease treatment by using controlled drug delivery through the human skin. For medical products, the requirements on the materials, especially on pressure sensitive adhesives (PSA) and backing layers, are highly demanding. Up to now, TTS development is based on adhesion tests originating from technical bonding purposes as the probe tack test, providing (as a one-point measurement) only limited information about the adhesion and release behavior of the TTS. Therefore, the newly developed method RheoTack is used to characterize the adhesion and release behavior of the silicone based amine compatible (AC) and non-amine compatible (NAC) PSA with different resin content νF (54.2-49.1%) by using two flat shaped rods (Ø = 5 and 8 mm) and a round shaped rod (Ø = 5mm) with varying retraction speeds νretract (0.01, 0.1 and 1 mm/s). The resulting force-retraction F-h displacement curves show the F-minima and the clear νF-dependent behavior as well as the clear difference between AC and NAC materials. Additionally, the F-h curves display νretract dependent behavior, indicating the viscoelastic behavior of the PSA. Furthermore, the F-h curves of the round shaped rod exhibit two F minima for low νretract, which might be caused by the round geometry and its rather complicated stress field.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings ICEM20 Experimental Mechanics in Engineering and Biomechanics

ISBN

978-989-54-7566-7

ISSN

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e-ISSN

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Number of pages

2

Pages from-to

51-52

Publisher name

INEGI-FEUP

Place of publication

Porto

Event location

Porto

Event date

Jul 2, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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