Low-κ′ dielectric properties of UV-treated bi-axially oriented polypropylene films

Dervos, CT; Tarantili, PA; Athanassopoulou, MD

dc.contributor.author	Dervos, CT	en
dc.contributor.author	Tarantili, PA	en
dc.contributor.author	Athanassopoulou, MD	en
dc.date.accessioned	2014-03-01T01:58:45Z
dc.date.available	2014-03-01T01:58:45Z
dc.date.issued	2009	en
dc.identifier.issn	00223727	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/28716
dc.subject.other	Application fields	en
dc.subject.other	Bi-axially oriented polypropylenes	en
dc.subject.other	Capacitance method	en
dc.subject.other	Combined actions	en
dc.subject.other	Dielectric constant values	en
dc.subject.other	Dielectric response	en
dc.subject.other	Dissipation factors	en
dc.subject.other	Electronic component	en
dc.subject.other	Fluorine atoms	en
dc.subject.other	High-voltages	en
dc.subject.other	Polarization effect	en
dc.subject.other	Relative dielectric constant	en
dc.subject.other	Capacitance	en
dc.subject.other	Chemical stability	en
dc.subject.other	Dielectric losses	en
dc.subject.other	Dielectric waveguides	en
dc.subject.other	Fluorine	en
dc.subject.other	Permittivity	en
dc.subject.other	Plastic films	en
dc.subject.other	Thermoplastics	en
dc.subject.other	Ceramic capacitors	en
dc.title	Low-κ′ dielectric properties of UV-treated bi-axially oriented polypropylene films	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/0022-3727/42/13/135409	en
heal.identifier.secondary	http://dx.doi.org/10.1088/0022-3727/42/13/135409	en
heal.identifier.secondary	135409	en
heal.publicationDate	2009	en
heal.abstract	A 40 μm multilayer bi-axially oriented polypropylene (BOPP) film, was fabricated by the tenter process and its dielectric response was investigated after applying combined action of UV, humidity and heat. Dissipation factor (tan δ) and relative dielectric constant measurements were performed via the capacitance method for frequencies 20Hz-1 GHz. These results show that the relative dielectric constant (κ′) reduces towards ultra low values (1.8) with an increasing number of applied UV-condensation cycles without any subsequent increase in the dielectric loss. Having no added physical porosity and absence of fluorine atoms, the irradiated BOPP structures offer significant advantages over poly(tetrafluoroethylene) PTFE due to reduced polarization effects, lower dielectric constant values and chemical stability to the adjacent copper or aluminium conductors. Possible application fields are dry type high-voltage capacitors and insulation within electronic components. © 2009 IOP Publishing Ltd.	en
heal.journalName	Journal of Physics D: Applied Physics	en
dc.identifier.doi	10.1088/0022-3727/42/13/135409	en
dc.identifier.volume	42	en
dc.identifier.issue	13	en