Low-kappa ' 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	2014-03-01T01:58:54Z
dc.date.available	2014-03-01T01:58:54Z
dc.date.issued	2009	en
dc.identifier.issn	0022-3727	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/28781
dc.subject.classification	Physics, Applied	en
dc.subject.other	SUPERCONDUCTING CABLES	en
dc.subject.other	SPECTROSCOPY	en
dc.subject.other	CHEMILUMINESCENCE	en
dc.subject.other	PHOTOOXIDATION	en
dc.subject.other	FEASIBILITY	en
dc.title	Low-kappa ' dielectric properties of UV-treated bi-axially oriented polypropylene films	en
heal.type	journalArticle	en
heal.identifier.secondary	135409	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	A 40 mu m 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 delta) and relative dielectric constant measurements were performed via the capacitance method for frequencies 20Hz-1 GHz. These results show that the relative dielectric constant (kappa') 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.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	JOURNAL OF PHYSICS D-APPLIED PHYSICS	en
dc.identifier.isi	ISI:000267219000045	en
dc.identifier.volume	42	en
dc.identifier.issue	13	en