This work presents a methodology for correlating the mechanical properties determined by rheological measurements with the degree of cure that has been measured in differential scanning calorimetry. Therefore, a model-based as well as a model-free kinetic approach is used to calculate the degree of cure depending on the temperature profile the sample is submitted to during the rheological measurements. Afterwards the rheological data is related to this degree of cure. The combination of these different techniques of thermal analysis show good correlation and offer a deeper understanding of the development of the mechanical properties during cure.
Sánchez Cebrián A, Zogg M and Ermanni P. Beschleunigung der Aushärtung von pastösen Epoxidharzklebstoffen durch variotherme Prozessführung mittels Induktion. In: 13 FTK-Tagung Fertigungstechnologie Kleben 2013 (ed ADHÄSION live).
4.
FrauenhoferMKunzHDilgerK. Fast curing of adhesives in the field of CFRP. J Adhes2012; 88: 406–417.
5.
RuizETrochuF. Thermomechanical properties during cure of glass-polyester RTM composites: Elastic and viscoelastic modeling. J Compos Mater2005; 39: 881–916.
6.
BurnhamAKDinhLN. A comparison of isoconversional and model-fitting approaches to kinetic parameter estimation and application predictions. J Therm Anal Calorim2007; 89: 479–490.
7.
EhrensteinGWRiedelGTrawielP. Praxis der thermischen Analyse von Kunststoffen 2, völlig überarb. Aufl. München: Hanser, 2003.
8.
GalweyAKBrownMEKinetic background to thermal analysis and calorimetry. In: MEBrown (eds). Principles and practice, Amsterdam: Elsevier Science B.V, 1998, pp. 147–224.
9.
Jendrny J. Entwicklung von Berechnungsmodellen zur Abschätzung der Verformung geklebter dünnwandiger Stahlbauteile in Leichtbaukonstruktionen während der Warmaushärtung. University of Paderborn, Paderborn, 2004.
10.
Eichleiter F. Fertigungs- und prozessbedingte Eigenschaften von Klebverbindungen im Karosseriebau. Technical University, Aachen, Braunschweig, 2012.
11.
Menzel S. Zur Berechnung von Klebverbindungen hybrider Karosseriestrukturen beim Lacktrocknungsprozess. TU: Dresden, 2011.
12.
VyazovkinSWightCA. Isothermal and nonisothermal reaction kinetics in solids: In search of ways toward consensus. J Phys Chem A1997; 101: 8279–8284.
13.
FriedmanHL. Kinetics of thermal degradation of char-forming plastics from thermogravimetry. Application to a phenolic plastic. J Polym Sci C: Polym Symp1964; 6: 183–195.
14.
OzawaT. A new method of analyzing thermogravimetric data. Bull Chem Soc Jpn1965; 38: 1881–1886.
15.
FlynnJHWallLA. General treatment of the thermogravimetry of polymers. J Res Natl Bur Stand Sect A: Phys Chem1966; 70A: 487–487.
VyazovkinSBurnhamACriadoJ. ICTAC Kinetics Committee recommendations for performing kinetic computations on thermal analysis data. Thermochim Acta2011; 520: 1–19.
18.
VyazovkinSDollimoreD. Linear and nonlinear procedures in isoconversional computations of the activation energy of nonisothermal reactions in solids. J Chem Inform Comput Sci1996; 36: 42–45.
19.
VyazovkinS. Evaluation of activation energy of thermally stimulated solid-state reactions under arbitrary variation of temperature. J Comput Chem1997; 18: 393–402.
20.
VyazovkinSSbirrazzuoliN. Isoconversional kinetic analysis of thermally stimulated processes in polymers. Macromol Rapid Commun2006; 27: 1515–1532.
21.
da SilvaLFM. Testing adhesive joints: Best practices. Weinheim, Germany: Wiley-VCH, 2012.
22.
SchlimmerMBornemannJ. Berechnung und Dimensionierung von Klebverbindungen mit der Methode der finiten Elemente und experimentelle Überprüfung der Ergebnisse, Aachen: Shaker, 2004.
23.
MezgerTG. Das Rheologie Handbuch: Für Anwender von Rotations- und Oszillations-Rheometern. 3, überarb. Aufl. Hannover: Vincentz Network, 2010.
24.
Henkel Adhesives - North America. Technical Product Bulletin - Terokal 5089, October 2008.
