Curing behavior of epoxy/Fe 3 O 4 nanocomposites: A comparison between the effects of bare Fe 3 O 4 , Fe 3 O 4 /SiO 2 /chitosan and Fe 3 O 4 /SiO 2 /chitosan/imide/phenylalanine-modified nanofillers - Publikacja - MOST Wiedzy

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Curing behavior of epoxy/Fe 3 O 4 nanocomposites: A comparison between the effects of bare Fe 3 O 4 , Fe 3 O 4 /SiO 2 /chitosan and Fe 3 O 4 /SiO 2 /chitosan/imide/phenylalanine-modified nanofillers

Abstrakt

In this study, Fe3O4 magnetic nanoparticles (MNPs) were synthesized (B-MNP) and then modified with SiO2 to form Fe3O4/SiO2 core/shell MNPs. The Fe3O4/SiO2 MNPs were chemically functionalized with chitosan so as to gain Fe3O4/SiO2/Chitosan (CH-MNP). The CH-MNP was functionalized with a macromolecule containing imide and phenylalanine precursors to gain Fe3O4/SiO2/Chitosan/imide/phenylalanine based MNPs (CH-IM-MNP). The differences in chemical structures of the synthesized MNPs were quantified by FTIR and TGA analyses, where grafting ratios of ca. 6 and 28% were calculated for CH-MNP and CH-IM-MNP nanoparticles, respectively. Nanocomposites were prepared by addition of very low (0.1 wt.% nanoparticle based on 100 parts by weight of epoxy) to epoxy/amine systems. Curing behavior of the blank and MNPs-incorporated nanocomposites were studied by nonisothermal DSC analyses varying heating rate, which allowed for giving useful insights into the effect of chemical surface functionalization of MNPs on the curing potential/behavior of epoxy/amine systems. Analysis of fracture surface of the blank and MNPs-incorporated systems using SEM micrographs revealed a very high potential of cure when CH-IM-MNP added to epoxy/amine formulation.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
PROGRESS IN ORGANIC COATINGS nr 123, strony 10 - 19,
ISSN: 0300-9440
Język:
angielski
Rok wydania:
2018
Opis bibliograficzny:
Jouyandeh M., Paran S., Shabanian M., Ghiyasi S., Vahabi H., Badawi M., Formela K., Puglia D., Saeb M.: Curing behavior of epoxy/Fe 3 O 4 nanocomposites: A comparison between the effects of bare Fe 3 O 4 , Fe 3 O 4 /SiO 2 /chitosan and Fe 3 O 4 /SiO 2 /chitosan/imide/phenylalanine-modified nanofillers// PROGRESS IN ORGANIC COATINGS. -Vol. 123, (2018), s.10-19
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.porgcoat.2018.06.006
Weryfikacja:
Politechnika Gdańska

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