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Updated: Nov 5, 2025
09:06
Evaluation of the Curing of Adhesive Systems by Rheological and Thermal Testing
Published on: July 3, 2020
7.5K
Heterogeneous dynamics in the curing process of epoxy resins
Taiki Hoshino1, Yasushi Okamoto2, Atsushi Yamamoto2
1RIKEN SPring-8 Center, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5148, Japan. t-hoshino@spring8.or.jp.
Scientific Reports
|May 18, 2021
Summary
This study reveals how temperature impacts microscopic dynamics during epoxy resin curing. Understanding these dynamics helps optimize material properties for industrial applications.
Area of Science:
- Materials Science
- Polymer Chemistry
- Condensed Matter Physics
Background:
- Epoxy resins are vital industrial materials due to superior mechanical and chemical properties.
- Existing research often overlooks the microscopic dynamics of epoxy resin curing.
- Understanding microscopic dynamics is key to optimizing material performance.
Purpose of the Study:
- To investigate the microscopic dynamics during catalytic epoxy resin curing.
- To explore the influence of varying temperature conditions on these dynamics.
- To elucidate the microscopic mechanism of the curing process.
Main Methods:
- Utilized X-ray photon correlation spectroscopy (XPCS) to probe microscopic dynamics.
- Conducted experiments under varied temperature conditions.
- Compared XPCS results with 1H-pulse nuclear magnetic resonance spectroscopy data.
Main Results:
- Temperature significantly influences dynamical heterogeneity in cured epoxy resins.
- Temperature affects the cross-linking density of the final material.
- Detailed microscopic insights into the curing mechanism were obtained.
Conclusions:
- Microscopic dynamics are crucial for understanding epoxy resin curing.
- Quantifying heterogeneous dynamics aids in optimizing curing conditions.
- This research provides a pathway to enhance physical properties of epoxy-based materials.
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