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Cure Index demonstrates curing of epoxy composites containing silica nanoparticles of variable morphology and porosity
Abstrakt
An image was taken by Cure Index on curability of epoxy with silica nanoparticles having variable morphology and porosity. Three kinds of silica nanoparticles with non-porous curved-rod, non-porous spherical, and mesoporous spherical microstructures were synthesized and characterized by Fourier-transform infrared spectroscopy, scanning electron microscopy (SEM) and Brunauer–Emmett–Teller analyses. Epoxy nanocomposites containing 0.1, 0.3, 0.5 wt.% of nanoparticles cured nonisothermally in differential scanning calorimetry (DSC) at different heating rates and the glass transition temperature (Tg) for fully-cured samples was estimated. Cure Index unravelled the effect of nanoparticle morphology and porosity on epoxy crosslinking. Good cure was unconditionally the case for systems containing 0.3 wt.% of mesoporous spherical nanoparticles due to appropriate dispersion of porous nanoparticles, as captured by SEM. By contrast, dependency of curing on heating rate and nanoparticle loading in the case of non-porous spherical and curved-rod particles was evidenced by partially agglomerated domains. The state of nanoparticle-polymer interaction was also inferred in view of network formation in the presence of nanosilica particles of various morphology and porosity, which was nicely monitored by the use of Cure Index.
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Autorzy (11)
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Farimah Tikhani
- University of Tehran, Iran School of Chemical Engineering, College of Engineering
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Maryam Jouyandeh
- University of Tehran, Iran School of Chemical Engineering, College of Engineering
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Seyed Jafari
- University of Tehran, Iran School of Chemical Engineering, College of Engineering
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Sara Chabokrow
- Institute for Color Science and Technology (ICST), Tehran, Iran Department of Nanomaterials and Nanocoatings
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Mehdi Ghahari
- Institute for Color Science and Technology (ICST), Tehran, Iran Department of Nanomaterials and Nanocoatings
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Kamaladin Gharanjig
- Institute for Color Science and Technology, Tehran, Iran Department of Organic Colorants
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Felix Klein
- Philipps-University of Marburg, Germany Department of Chemistry
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Norbert Hampp
- Philipps-University of Marburg, Germany Department of Chemistry
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Mohammad Ganjali
- University of Tehran, Iran Center of Excellence in Electrochemistry, School of Chemistry, College of Science
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Mohammad Saeb
- Institute for Color Science and Technology, Tehran, Iran Department of Resin and Additives
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuł w czasopiśmie wyróżnionym w JCR
- Opublikowano w:
-
PROGRESS IN ORGANIC COATINGS
nr 135,
strony 176 - 184,
ISSN: 0300-9440 - Język:
- angielski
- Rok wydania:
- 2019
- Opis bibliograficzny:
- Tikhani F., Jouyandeh M., Jafari S., Chabokrow S., Ghahari M., Gharanjig K., Klein F., Hampp N., Ganjali M., Formela K., Saeb M.: Cure Index demonstrates curing of epoxy composites containing silica nanoparticles of variable morphology and porosity// PROGRESS IN ORGANIC COATINGS. -Vol. 135, (2019), s.176-184
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.porgcoat.2019.05.017
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 231 razy
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