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Yu M, Yadav SK, La Scala JJ, Palmese GR. Bio‐based benzoxazine monomers and polymers based on difuran diamine. J Appl Polym Sci 2022. [DOI: 10.1002/app.52946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mengwen Yu
- Department of Chemical and Biological Engineering Drexel University Philadelphia Pennsylvania USA
| | - Santosh K. Yadav
- Department of Chemical and Biological Engineering Drexel University Philadelphia Pennsylvania USA
| | | | - Giuseppe R. Palmese
- Department of Chemical and Biological Engineering Drexel University Philadelphia Pennsylvania USA
- Department of Chemical Engineering Rowan University Glassboro New Jersey USA
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Zamal HH, Barba D, Aïssa B, Haddad E, Rosei F. Recovery of electro-mechanical properties inside self-healing composites through microencapsulation of carbon nanotubes. Sci Rep 2020; 10:2973. [PMID: 32076026 PMCID: PMC7031524 DOI: 10.1038/s41598-020-59725-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/02/2020] [Indexed: 11/09/2022] Open
Abstract
We report the successful microencapsulation of multi-walled carbon nanotubes suspended in a 5-ethylidene-2-norbornene (5E2N) self-healing monomer, into poly melamine urea formaldehyde shells through in situ polymerization. The average size of the microcapsules, their size-distribution, shell wall structural integrity and thickness are characterized by optical and scanning electron microscopy. The presence of carbon nanotubes (CNTs) inside the core liquid content, as well as their release after breaking is confirmed by microscopy and spectroscopy analyses. A small amount of CNTs inside the microcapsules is found to have no significant impact on the thermal stability of the system, as determined by thermogravimetric analysis and differential scanning calorimetry. Both the mechanical and the electrical properties of CNT-based self-healing materials can be restored up to 80% when CNT/5E2N microcapsules are incorporated into polymer composites, thus making them highly suitable for applications in aerospace.
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Affiliation(s)
- Hasna Hena Zamal
- Institut National de la Recherche Scientifique, Centre: Energie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Québec, J3X 1S2, Canada
| | - David Barba
- Institut National de la Recherche Scientifique, Centre: Energie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Québec, J3X 1S2, Canada
| | - Brahim Aïssa
- MPB Communications Inc., Space & Photonics Division, 151 Hymus Boulevard, Pointe Claire, Montréal, QC, H9R 1E9, Canada.
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University, Qatar Foundation, 5825, Doha, State of Qatar.
| | - Emile Haddad
- MPB Communications Inc., Space & Photonics Division, 151 Hymus Boulevard, Pointe Claire, Montréal, QC, H9R 1E9, Canada
| | - Federico Rosei
- Institut National de la Recherche Scientifique, Centre: Energie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Québec, J3X 1S2, Canada.
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Cure kinetics of poly (5-ethylidene-2-norbornene) with 2nd generation Hoveyda-Grubbs’ catalyst for self-healing applications. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.082] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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