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Preparation of Binary and Ternary Deep Eutectic Systems
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Cold-Cured Epoxy-Based Organic⁻Inorganic Hybrid Resins Containing Deep Eutectic Solvents
Francesca Lionetto1, Alessia Timo2,3, Mariaenrica Frigione4
1Department of Engineering for Innovation, University of Salento, via per Monteroni, 73100 Lecce, Italy. francesca.lionetto@unisalento.it.
Polymers
|April 10, 2019
Summary
New nano-structured organic-inorganic hybrid resins offer enhanced durability for construction composites. These advanced materials provide superior resistance to moisture, temperature, and fire compared to traditional epoxy resins.
Area of Science:
- Materials Science
- Polymer Chemistry
- Nanotechnology
Background:
- Fiber reinforced polymer (FRP) composites are crucial in construction.
- Current epoxy resins have limitations in durability against environmental factors and fire.
- Nano-structured organic-inorganic hybrids show promise as advanced alternatives.
Purpose of the Study:
- To synthesize novel organic-inorganic epoxy hybrids using a water-free sol-gel method.
- To investigate the effect of deep eutectic solvent (DES) on silica nano-phase dispersion.
- To evaluate the properties of cold-cured hybrid systems with varying DES content.
Main Methods:
- Modified sol-gel synthesis without water.
- Formulation with silane-functionalized epoxy resin, alkoxysilanes, and DES (choline chloride/urea).
- Cold-curing with ambient temperature hardeners.
- Characterization using rheology, calorimetry, TGA, DMA, mechanical testing, and morphology analysis.
Main Results:
- Successful synthesis of organic-inorganic epoxy hybrids.
- DES effectively promoted silica nano-phase dispersion within the epoxy matrix.
- Preliminary analysis indicated potential improvements in material properties.
Conclusions:
- The developed organic-inorganic epoxy hybrids represent a viable alternative to conventional resins.
- The water-free sol-gel approach and DES addition are effective strategies for creating durable composite materials.
- Further research will explore the full potential of these hybrid systems for construction applications.
Keywords:
cold-cured epoxycross-linkingdeep eutectic solventsionic liquidnano-compositesorganic-inorganic hybridssol–gel techniquethermosetting resinsMore Related Videos
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