Development and characterization of a novolac resin/BaTiO3 nanoparticles composite system

Asimakopoulos, I; Zoumpoulakis, L; Psarras, GC

dc.contributor.author	Asimakopoulos, I	en
dc.contributor.author	Zoumpoulakis, L	en
dc.contributor.author	Psarras, GC	en
dc.date.accessioned	2014-03-01T02:08:40Z
dc.date.available	2014-03-01T02:08:40Z
dc.date.issued	2012	en
dc.identifier.issn	00218995	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29693
dc.subject	barium titanate	en
dc.subject	broadband dielectric spectroscopy	en
dc.subject	ferroelectric crystal	en
dc.subject	mechanical properties	en
dc.subject	novolac	en
dc.subject	polymer nanocomposites	en
dc.subject.other	Barium titanate nanoparticles	en
dc.subject.other	Broad-band dielectric spectroscopy	en
dc.subject.other	Dielectric permittivities	en
dc.subject.other	Dielectric response	en
dc.subject.other	Electronic device	en
dc.subject.other	Ferroelectric crystal	en
dc.subject.other	Filler contents	en
dc.subject.other	Host matrices	en
dc.subject.other	Interfacial polarization	en
dc.subject.other	Mechanical and dielectric properties	en
dc.subject.other	Mechanical performance	en
dc.subject.other	Nanofiller	en
dc.subject.other	Novolac	en
dc.subject.other	Novolac resin	en
dc.subject.other	Piezoelectric crystals	en
dc.subject.other	Polymer chains	en
dc.subject.other	Polymer composite	en
dc.subject.other	Polymer nanocomposite	en
dc.subject.other	Randomly distributed	en
dc.subject.other	Shear strength tests	en
dc.subject.other	Structural characterization	en
dc.subject.other	Barium titanate	en
dc.subject.other	Bending strength	en
dc.subject.other	Composite materials	en
dc.subject.other	Dielectric spectroscopy	en
dc.subject.other	Filled polymers	en
dc.subject.other	Fillers	en
dc.subject.other	Fracture mechanics	en
dc.subject.other	Glass transition	en
dc.subject.other	Mechanical properties	en
dc.subject.other	Nanocomposites	en
dc.subject.other	Nanoparticles	en
dc.subject.other	Permittivity	en
dc.subject.other	Polymers	en
dc.subject.other	Resins	en
dc.subject.other	Scanning electron microscopy	en
dc.subject.other	X ray diffraction	en
dc.subject.other	Polymer matrix composites	en
dc.title	Development and characterization of a novolac resin/BaTiO3 nanoparticles composite system	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/app.36518	en
heal.identifier.secondary	http://dx.doi.org/10.1002/app.36518	en
heal.publicationDate	2012	en
heal.abstract	Polymer composites incorporating ferroelectric and piezoelectric crystal particles, randomly distributed within the host matrix, represent a novel class of materials. In this study, composite materials consisted of novolac resin and barium titanate nanoparticles were prepared and examined, varying the nanofiller content. Structural characterization was conducted via X-ray diffraction and scanning electron microscopy. Mechanical and dielectric properties were examined by employing bending and shear strength tests and broadband dielectric spectroscopy, respectively. Bending and shear strength found to decrease with the filler content. Dielectric permittivity was found to increase significantly with filler content, and the detected relaxation processes were attributed to interfacial polarization, glass to rubber transition of the matrix, and reorientation of polar side groups of the polymer chain. Although, the mechanical performance of the examined systems seems not to be attractive in applications due to its brittleness, nanocomposites' dielectric response could be proved interesting in electrical and electronic devices applications. Copyright © 2012 Wiley Periodicals, Inc.	en
heal.journalName	Journal of Applied Polymer Science	en
dc.identifier.doi	10.1002/app.36518	en
dc.identifier.volume	125	en
dc.identifier.issue	5	en
dc.identifier.spage	3737	en
dc.identifier.epage	3744	en