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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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Kozera, Paulina
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Using 3D printing technology to monitor damage in GFRPs
- 2024Nanocomposites Based on Thermoplastic Acrylic Resin with the Addition of Chemically Modified Multi-Walled Carbon Nanotubescitations
- 2023Beeswax as a natural alternative to synthetic waxes for fabrication of PLA/diatomaceous earth compositescitations
- 2023Polyamide 11 Composites Reinforced with Diatomite Biofiller—Mechanical, Rheological and Crystallization Propertiescitations
- 2022Biocomposites Based on Polyamide 11/Diatoms with Different Sized Frustulescitations
- 2022Influence of Diatomaceous Earth Particle Size on Mechanical Properties of PLA/Diatomaceous Earth Compositescitations
- 2018Carbon Fiber/Epoxy Mold with Embedded Carbon Fiber Resistor Heater - Case Studycitations
- 2017Charpy impact tests of epoxy matrix filled with poly(urea-formaldehyde) microcapsules for self-healing applications. (Badania udarności kompozytów o osnowie epoksydowej zawierającej mikrokapsułki mocznikowo-formaldehydowe do zastosowań w materiałach samo naprawialnych)
- 2015Fabrication and characterization of composite materials based on porous ceramic preform infiltrated by elastomer
- 2015Design of phase percolated composites for military application
- 2015Comparison of numerical and experimental study of armour system based on alumina and silicon carbide ceramics
- 2014Numerical and experimental study of armour system consisted of ceramic and ceramic- elastomer composites
- 2011Microstructure and mechanical properties of cermic-metal composites obtained by pressure infiltration
- 2011Effect of specific surface fraction of interphase boundaries on mechanical properties of ceramic-metal composites, obtained by pressure infiltration
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article
Charpy impact tests of epoxy matrix filled with poly(urea-formaldehyde) microcapsules for self-healing applications. (Badania udarności kompozytów o osnowie epoksydowej zawierającej mikrokapsułki mocznikowo-formaldehydowe do zastosowań w materiałach samo naprawialnych)
Abstract
Smart self-healing epoxides have attracted immense interest in the industry due to their capability to prevent crack propagation and increase material service life. Self-healing can be achieved via a number of approaches, where microcapsulebased systems are deemed to be the closest to market implementation. The work presented here demonstrates the effect of polymeric microcapsules made of poly(urea-formaldehyde) on the Charpy impact resistance of a standard epoxy matrix. Poly(urea-formaldehyde) microcapsules containing epoxy resin (EPIDIAN 52) and organic solvent (Ethyl phenylacetate) were prepared using in-situ polymerisation in an oil-in-water emulsion as described in the literature. The Charpy impact tests were performed on specimens made of neat epoxy resin (EPIDIAN 52) - amine hardener (Z1) as well as for the epoxy filled with microcapsules with 1, 2.5, 5, 10 and 25 wt.%. The test results have shown that the presence of brittle and spherical additives has a detrimental effect on the mechanical properties of the polymer, resulting in a maximum 80% reduction in impast strength for the samples with the highest content of microcapsules. In addition, the fracture surfaces of the impacted specimens were investigated using a Scanning Electron Microscope (SEM). Significant differences were observed between the reference samples and those containing microcapsules, particularly when the microcapsule weight fraction is high.