Analysis of the decomposition of an anhydride-cured epoxy resin by subcritical hydrolysis
Abstract The decomposition of an anhydride-cured epoxy resin by subcritical hydrolysis is studied under variation of reaction temperature, decomposition duration and water volume using a batch reactor. Within the framework of a design of experiment, the process is evaluated by the gravimetric decomp...
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Nature Portfolio
2025-07-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-13375-8 |
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| author | Simon Backens Arthur Konrad Wieland Stefan Schmidt Wilko Flügge Lukas Friederici Christopher Rüger |
| author_facet | Simon Backens Arthur Konrad Wieland Stefan Schmidt Wilko Flügge Lukas Friederici Christopher Rüger |
| author_sort | Simon Backens |
| collection | DOAJ |
| description | Abstract The decomposition of an anhydride-cured epoxy resin by subcritical hydrolysis is studied under variation of reaction temperature, decomposition duration and water volume using a batch reactor. Within the framework of a design of experiment, the process is evaluated by the gravimetric decomposition of the epoxy resin clearly showing that temperature is the most important factor. Duration and water volume have only smaller positive effects. The mass loss mechanism of the cube-shaped specimens corresponds to a heterogeneous surface degradation where material is only lost from the outer areas. The determination of glass transition temperatures after the experiments demonstrates that the water hardly affects the center of the epoxy cubes. Therefore, a core-shrinking model is successfully applied for analysis of the decomposition kinetics. The product distribution in the aqueous phase reveals a large number of organic compounds. Higher temperatures, longer durations and lower water volumes lead to an increase in decomposition product complexity and concentrations, but the degradation pathways are apparently not affected. |
| format | Article |
| id | doaj-art-d963b148f2f44f759c7c8817cd6d8979 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-d963b148f2f44f759c7c8817cd6d89792025-08-20T03:42:53ZengNature PortfolioScientific Reports2045-23222025-07-0115111210.1038/s41598-025-13375-8Analysis of the decomposition of an anhydride-cured epoxy resin by subcritical hydrolysisSimon Backens0Arthur Konrad Wieland1Stefan Schmidt2Wilko Flügge3Lukas Friederici4Christopher Rüger5Fraunhofer Institute for Large Structures in Production Engineering IGPFraunhofer Institute for Large Structures in Production Engineering IGPFraunhofer Institute for Large Structures in Production Engineering IGPFraunhofer Institute for Large Structures in Production Engineering IGPJoint Mass Spectrometry Centre/Chair of Analytical Chemistry, University of RostockJoint Mass Spectrometry Centre/Chair of Analytical Chemistry, University of RostockAbstract The decomposition of an anhydride-cured epoxy resin by subcritical hydrolysis is studied under variation of reaction temperature, decomposition duration and water volume using a batch reactor. Within the framework of a design of experiment, the process is evaluated by the gravimetric decomposition of the epoxy resin clearly showing that temperature is the most important factor. Duration and water volume have only smaller positive effects. The mass loss mechanism of the cube-shaped specimens corresponds to a heterogeneous surface degradation where material is only lost from the outer areas. The determination of glass transition temperatures after the experiments demonstrates that the water hardly affects the center of the epoxy cubes. Therefore, a core-shrinking model is successfully applied for analysis of the decomposition kinetics. The product distribution in the aqueous phase reveals a large number of organic compounds. Higher temperatures, longer durations and lower water volumes lead to an increase in decomposition product complexity and concentrations, but the degradation pathways are apparently not affected.https://doi.org/10.1038/s41598-025-13375-8Subcritical hydrolysisAnhydride-cured epoxy resinGlass transition temperatureCore-shrinking modelGas chromatographyMass spectrometry |
| spellingShingle | Simon Backens Arthur Konrad Wieland Stefan Schmidt Wilko Flügge Lukas Friederici Christopher Rüger Analysis of the decomposition of an anhydride-cured epoxy resin by subcritical hydrolysis Scientific Reports Subcritical hydrolysis Anhydride-cured epoxy resin Glass transition temperature Core-shrinking model Gas chromatography Mass spectrometry |
| title | Analysis of the decomposition of an anhydride-cured epoxy resin by subcritical hydrolysis |
| title_full | Analysis of the decomposition of an anhydride-cured epoxy resin by subcritical hydrolysis |
| title_fullStr | Analysis of the decomposition of an anhydride-cured epoxy resin by subcritical hydrolysis |
| title_full_unstemmed | Analysis of the decomposition of an anhydride-cured epoxy resin by subcritical hydrolysis |
| title_short | Analysis of the decomposition of an anhydride-cured epoxy resin by subcritical hydrolysis |
| title_sort | analysis of the decomposition of an anhydride cured epoxy resin by subcritical hydrolysis |
| topic | Subcritical hydrolysis Anhydride-cured epoxy resin Glass transition temperature Core-shrinking model Gas chromatography Mass spectrometry |
| url | https://doi.org/10.1038/s41598-025-13375-8 |
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