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Updated: Oct 27, 2025
09:06
Evaluation of the Curing of Adhesive Systems by Rheological and Thermal Testing
Published on: July 3, 2020
7.4K
Cure Kinetics and Inverse Analysis of Epoxy-Amine Based Adhesive Used for Fastening Systems
Bilen Emek Abali1,2, Michele Zecchini2, Gilda Daissè2
1Division of Applied Mechanics, Department of Materials Science and Engineering, Uppsala University, P.O. Box 534, SE-751 21 Uppsala, Sweden.
Materials (Basel, Switzerland)
|July 24, 2021
Summary
Accurately estimating the cure degree of thermosetting polymers is crucial for material properties. This study models epoxy curing using experimental data and inverse analysis, determining 10 material parameters.
Area of Science:
- Polymer Science
- Materials Engineering
- Chemical Engineering
Background:
- Thermosetting polymers, like epoxies, are vital in construction adhesives.
- Their hardening (curing) is temperature-dependent, impacting material properties.
- Accurate estimation of the cure degree is essential for performance.
Purpose of the Study:
- To develop a model for the curing process of epoxy-based thermosetting polymers.
- To determine key material parameters governing the curing kinetics.
- To validate the model's accuracy for commercial epoxy products.
Main Methods:
- Experimental approach involving calorimetry measurements.
- Development and implementation of an inverse analysis algorithm.
- Utilizing open-source software packages for parameter determination.
Main Results:
- Successfully obtained 10 material parameters describing the epoxy curing process.
- Demonstrated the methodology on two commercial epoxy-based products.
- Statistical analysis confirmed the independence of the determined material parameters.
Conclusions:
- The developed inverse analysis approach accurately models thermosetting polymer curing.
- The material equation adequately describes the observed material response.
- This work provides a robust method for characterizing epoxy-based thermosetting polymers.
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