Oluschinski: Created page with "{{Language_sel|LANG=ger|ARTIKEL=T-Peeltest}} {{PSM_Infobox}} T-Peel test FORCETOC ==Schematic representation of the T-peel test== The T-peel test is used to characterise the peel behaviour (see:peeling process) of peel systems ('''Fig. 1''') and is performed in accordance with ASTM D 1876 and DIN 55529. The designation ‘T’ refers to the presence of two peel arms, each of which is bent by..."

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Created page with "{{Language_sel|LANG=ger|ARTIKEL=T-Peeltest}} {{PSM_Infobox}} T-Peel test __FORCETOC__ ==Schematic representation of the T-peel test== The T-peel test is used to characterise the peel behaviour (see:peeling process) of peel systems ('''Fig. 1''') and is performed in accordance with ASTM D 1876 and DIN 55529. The designation ‘T’ refers to the presence of two peel arms, each of which is bent by..."

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{{Language_sel|LANG=ger|ARTIKEL=T-Peeltest}}
{{PSM_Infobox}}
T-Peel test
__FORCETOC__

==Schematic representation of the T-peel test==

The T-peel test is used to characterise the peel behaviour (see:[[Peeling Process|peeling process]]) of peel systems ('''Fig. 1''') and is performed in accordance with ASTM D 1876 and DIN 55529. The designation ‘T’ refers to the presence of two peel arms, each of which is bent by 90° during the peel test, resulting in a ‘T-shape’. The T-peel test is performed on a universal testing machine (see: [[Material Testing Machine|material testing machine]]). The clamping length ''l''0 = 50 mm and the peel speed ''v''T = 100 mm/min.

[[File:T-Peel_Test_Fig-1.jpg|320px]]
{|
|- valign="top"
|width="50px"|'''Fig. 1''':
|width="600px" |Schematic representation of the T-peel test; the length and width of the [[Sealed Seam|sealed seam]] were reversed due to the available dimensions compared to the literature
|}

==Material parameters==

During the peel test, a peel [[Peel Force – Fracture Path Diagram|force–fracture path (elongation) diagram]] is recorded, from which the application-related [[Measured Variable|measurement variable]] [[Peel Force|peel force]] can be obtained. For the fracture mechanical characterisation (see: [[Fracture Mechanical Testing|fracture mechanical testing]]) of the [[Peeling Process|peeling process]], the energy-determined [[Material Parameter|parameter]] adhesive [[Energy Release Rate|energy release rate]] is used.

==Example of a PE-LD/iPB-1 peel film system==

Using the example of the peel system low-density polyethylene blended with isotactic polybutene-1 ([[Plastics – Symbols and Abbreviated Terms|abbreviation]]: PE-LD/iPB-1), the peel force–fracture path diagrams (peel curves) recorded during the T-peel test for different iPB-1 contents of 6, 10 and 20 M.% are shown in '''Fig. 2'''. The peel curves shown typically exhibit two local maxima, the presence of which is due to the concave cross-section of the [[Sealed Seam|sealed seam]]. Furthermore, the plateau area used to determine the [[Measured Variable|measured variable]] [[Peel Force|peel force]] is clearly visible in the peel curves. The force level of this plateau area and also the fracture path ''l''B are reduced with increasing iPB-1 mass fraction.

[[File:Peel Force Fracture Diagram Fig-2.jpg|380px]]
{|
|- valign="top"
|width="50px"|'''Fig. 2''':
|width="600px" |Representation of selected peel force–fracture path diagrams
|}

==See also==

* [[Peel Test|Peel Test]]
* [[Peel Force|Peel Force]]
* [[Peel Properties of the Peel Systems|Peel properties of the peel systems]]
* [[Fixed-arm Peel Test|Fixed-arm peel test]]
* [[Peel-Cling Test|Peel-cling test]]
* [[Peel Behaviour – Modelling|Peel behaviour – modelling]]
* [[In-situ Peel Test|in-situ peel test]]

==References==

* ASTM D 1876 (2008, reapproved 2023): Standard Test Method for Peel Resistance of Adhesives (T-Peel Test)
* DIN 55529 (2012-09): Verpackung – Bestimmung der Siegelnahtfestigkeit von Siegelungen aus flexiblen Packstoffen
* DIN ISO 813 (2020-12): Elastomere und thermoplastische Elastomere – Bestimmung der Haftfestigkeit zu einer Trägerplatte – 90° Schälverfahren
* [[Nase, Michael|Nase, M.]], Langer, B., [[Grellmann,_Wolfgang|Grellmann, W.]]: Bruchmechanische Kennwertermittlung im T-Peeltest und im Fixed-Arm Peeltest. In: Frenz, H., [https://www.researchgate.net/profile/Wolfgang-Grellmann Grellmann, W.] (Eds.): 26. Tagung Werkstoffprüfung „Herausforderung neuer Werkstoffe an die Forschung und Werkstoffprüfung“, Berlin (2008) Proceedings pp. 223–228, (ISBN 978-3-00-026399-6; see [[AMK-Library]] under A 10)
* Nase, M.: Zusammenhang zwischen Herstellungsbedingungen, übermolekularer Struktur und Eigenschaften von Peelfolien. Shaker Pubishing (2010) (ISBN 978-3-8322-9099-3; see [[AMK-Library]] under B 1-17)
* [[Reincke,_Katrin|Reincke, K.]], [https://de.wikipedia.org/wiki/Wolfgang_Grellmann Grellmann, W.]: Verfahren zur Charakterisierung der mechanischen Eigenschaften von Folien und Elastomeren. In: Grellmann, W. (Hrsg.): Neue Entwicklungen in der Werkstoffprüfung – Herausforderung an die Kennwertermittlung. Tagung "Werkstoffprüfung 2011", 1 and 2 December 2011, Berlin, Proceedings pp. 185–192 (ISBN 978-3-9814516-1-0; see [[AMK-Library]] under A 13)
* ESIS-TC4: A Protocol for Determination of the Adhesive Fracture Toughness of Flexible Laminates by Peel Testing: Fixed-Arm and T-peel Methods (2007) [http://www.imperial.ac.uk/media/imperial-college/research-centres-and-groups/adhesion-and-adhesives-group/ESIS-peel-protocol-(June-07)-revised-Nov-2010.pdf Download as pdf] (access on 21/10/2025)
* Reincke, K.: Testing of Polymeric Films. In: Grellmann, W., Seidler, S. (Eds.): Polymer Testing. Carl Hanser, Munich (2022). 3rd. Edition, pp. 643–678 (ISBN 978-1-56990-806-8; e-Book ISBN 978-1-56990-807-5; ePub ISBN 978-1-56990-808-2; see [[AMK-Library]] under A 22)

[[Category:Film Testing]]
[[Category:Peel Test]]

T-Peel Test - Revision history