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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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Schlögl, Sandra
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (33/33 displayed)
- 2024Cationic UV-curing of bio-based epoxidized castor oil vitrimers with electrically conductive propertiescitations
- 2024Dual-vat photopolymerization 3D printing of vitrimerscitations
- 2024Reprocessable carbon fiber vitrimer composites: Reclamation and reformatting of carbon fibers for second generation composite materials
- 2024Rapid tooling for rubber extrusion molding by digital light processing 3D printing with dual curable vitrimerscitations
- 2024MetamaterialFindercitations
- 2024Redox cationic frontal polymerization: a rapid curing approach for carbon fiber-reinforced composites with high fiber contentcitations
- 2024Vitrimer Transition Phenomena from the Perspective of Thermal Volume Expansion and Shape (In)stabilitycitations
- 2024Design of Reversible Adhesives by Using a Triple Function of Ionic Liquidscitations
- 2023Accelerated Thermo-Catalytic Degradation of Perfluoropolyether (PFPE) Lubricants for Space Applicationscitations
- 2023Ti$_{40}$Zr$_{10}$Cu$_{36}$Pd$_{14}$ bulk metallic glass as oral implant materialcitations
- 2023Thermally Latent Bases in Dynamic Covalent Polymer Networks and their Emerging Applicationscitations
- 2023On‐Demand Activation of Transesterification by Chemical Amplification in Dynamic Thiol‐Ene Photopolymerscitations
- 2023Sustainable Bio-Based UV-Cured Epoxy Vitrimer from Castor Oilcitations
- 2023Redox cationic frontal polymerizationcitations
- 2023Ti40Zr10Cu36Pd14 bulk metallic glass as oral implant materialcitations
- 2022Influence of morphology and chemical surface composition on electrical conductivity of SiC microspherescitations
- 2022Asymmetric chiral and antichiral mechanical metamaterials with tunable Poisson's ratiocitations
- 2021High resolution additive manufacturing with acrylate based vitrimers using organic phosphates as transesterification catalystcitations
- 2021Structural Model for the Estimation of the Equivalent Permittivity of Nanodielectrics Based on Polyethylene and Epoxy Resins
- 2021Introduction of Photolatent Bases for Locally Controlling Dynamic Exchange Reactions in Thermo-Activated Vitrimerscitations
- 2021Investigating the influence of surface hardness and energy on the perceived stickiness of polymer coatings.
- 2021Role of Organic Phosphates and Phosphonates in Catalyzing Dynamic Exchange Reactions in Thiol-Click Vitrimerscitations
- 2021Functional mechanical metamaterial with independently tunable stiffness in the three spatial directionscitations
- 2020Tailored Interfaces in Fiber-Reinforced Elastomerscitations
- 2020Epoxy-anhydride vitrimers from aminoglycidyl resins with high glass transition temperature and efficient stress relaxationcitations
- 2020Design and characterisation of vitrimer-like elastomeric composites from HXNBR rubbercitations
- 2020Exploiting the Carbon and Oxa Michael Addition Reaction for the Synthesis of Yne Monomerscitations
- 2020Tribological characteristics of medical gloves in contact with human skin and skin equivalentscitations
- 2019Bonded aerospace repairs under tensile loading: Wet chemical surface treatment and selected environmental conditionscitations
- 2018Tailoring the interfaces in glass fiber-reinforced photopolymer compositescitations
- 2017Synthesis and evaluation of new radical photoinitiators bearing trialkoxysilyl groups for surface immobilizationcitations
- 2016Thiol-Ene versus Binary Thiol–Acrylate Chemistrycitations
- 2016Flexible epoxy based composites with enhanced delamination resistance
Places of action
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article
Cationic UV-curing of bio-based epoxidized castor oil vitrimers with electrically conductive properties
Abstract
The growing appeal of carbon nanotube composites in the contemporary market derives from their exceptional thermal and chemical stability, coupled with electrical conductivity. In this study, we combined these salient features with a biobased epoxy matrix having vitrimeric properties, hence being reprocessable and resheapable, to obtain a biobased conductive coating. Epoxidised castor oil (ECO) was chosen as a monomer precursor for the straightforward synthesis. The synthesis relied on a cationic UV-curing process, embedding the conductive carbon nanotubes in the matrix. Photo DSC and transmission FTIR analysis were conducted to determine the final conversion of the epoxy rings in the cationic photocuring process. Thermo-mechanical properties were evaluated by tensile tests, and DMTA. Thermal stability was assessed by TGA. Dielectric spectroscopy confirmed increased electrical conductivity in the presence of increasing CNT content, reaching a percolation threshold at 0.5 phr of CNTs. Vitrimeric properties were proved by stress relaxation experiments, and the UV-cured composite underwent a thermo-activated transesterification reaction starting from 70 °C, catalysed by dibutyl phosphate. Overall, the ECO-CNT composite showed high thermal resistance (up to 400 °C) electrical conductivity with 0.5 phr CNT concentration, and vitrimeric properties. The study can be, therefore, considered a promising starting point to obtain sustainable biobased and electrically conductive vitrimers.