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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Griffin, James. M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Evaluation of the Embrittlement in Reactor Pressure-Vessel Steels Using a Hybrid Nondestructive Electromagnetic Testing and Evaluation Approachcitations
- 2023Friction and Wear in Stages of Galling for Sheet Metal Forming Applicationscitations
- 2022Analysis of Acoustic Emissions for Determination of the Mechanical Effects of Scratch Testscitations
- 2022Improving mechanical properties and processability of a very high T g epoxy amine network via anti‐plasticizer fortificationcitations
- 2022The Toughening of Highly Crosslinked Epoxy Networks using Core-Shell Rubber Particles
- 2021Cure Kinetics and Network Development of a Very High Tg Naphthalene-Based Epoxy Amine Networkcitations
- 2021Application of machine learning for acoustic emissions waveform to classify galling wear on sheet metal stamping toolscitations
- 2021Analysis of magnetic nondestructive measurement methods for determination of the degradation of reactor pressure vessel steelcitations
- 2019Understanding galling wear initiation and progression using force and acoustic emissions sensorscitations
Places of action
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article
Cure Kinetics and Network Development of a Very High Tg Naphthalene-Based Epoxy Amine Network
Abstract
A comparative study of the reaction mechanism, cure kinetics, and network development of two tetrafunctional epoxy resins cured with diamino diphenyl sulphone is presented here. Bis(2,7 diglycidylether naphthalenediol) methane (NNE), a highly aromatic and rigid epoxy resin consisting of glycidyl ether epoxide groups, is compared against tetraglycidyl diaminodiphenyl methane (TGDDM), a more flexible glycidyl amine based epoxy resin. A TGDDM/NNE blend is further prepared to explore the differences between glycidyl ether and glycidyl amine in high glass transition temperature networks. Near-infrared spectroscopy, differential scanning calorimetry, and dynamic mechanical thermal analysis are all used to understand the importance of the rigid bisnaphthalenediol motif and glycidyl ether functional groups with respect to the cure reaction and network transformations. The NNE cures more rapidly during the chemically controlled region, although vitrification and the onset of diffusion-controlled reactions begin earlier, ultimately resulting in lower epoxide conversions. Finally, time–temperature transformation diagrams are constructed to understand the relationship between gelation, vitrification, full cure, and degradation.