Curing effects on the acoustical properties of epoxy polymers

Prassianakis, JN; Kompoti, N; Varakis, J

dc.contributor.author	Prassianakis, JN	en
dc.contributor.author	Kompoti, N	en
dc.contributor.author	Varakis, J	en
dc.date.accessioned	2014-03-01T01:09:20Z
dc.date.available	2014-03-01T01:09:20Z
dc.date.issued	1993	en
dc.identifier.issn	00144851	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10919
dc.subject	Experimental Method	en
dc.subject	Room Temperature	en
dc.subject	Ultrasonic Wave	en
dc.subject.other	Acoustic properties	en
dc.subject.other	Attenuation	en
dc.subject.other	Curing	en
dc.subject.other	Plasticizers	en
dc.subject.other	Plastics casting	en
dc.subject.other	Polymerization	en
dc.subject.other	Ultrasonic transmission	en
dc.subject.other	Ultrasonic velocity	en
dc.subject.other	Epoxy polymers	en
dc.subject.other	Longitudinal ultrasonic waves	en
dc.subject.other	Pulse echo through transmission technique	en
dc.subject.other	Epoxy resins	en
dc.title	Curing effects on the acoustical properties of epoxy polymers	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF02322555	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF02322555	en
heal.publicationDate	1993	en
heal.abstract	This paper presents an experimental method for measuring the attenuation and the velocity of longitudinal ultrasonic waves propagating through flat epoxy polymer samples. The study takes place in the first phase of epoxy polymer's polymerization, where these materials pass slowly from liquid state to the solid state. For this purpose an experimental setup was introduced, suitable for the accurate evaluation of the acoustic properties Δα and cℓe, when the epoxy polymers are in their first phase of polymerization, while they are cured for 24 hours at room temperature (20°C). The ultrasonic method used is the pulse echo-through transmission technique. From the variation of cℓe and Δα during the first phase of epoxy polymers curing, the three characteristic states: liquid, semi-solid and solid, are clearly determined. It is also observed that plasticizer reduces the testability and the semi-solid state shows greater attenuation than either the liquid or the solid state. © 1993 Society for Experimental Mechanics, Inc.	en
heal.publisher	Kluwer Academic Publishers	en
heal.journalName	Experimental Mechanics	en
dc.identifier.doi	10.1007/BF02322555	en
dc.identifier.volume	33	en
dc.identifier.issue	1	en
dc.identifier.spage	77	en
dc.identifier.epage	80	en