Polyamide coated Kevlar (TM) fabric in epoxy resin: mechanical properties and moisture absorption studies

Varelidis, PC; Papakostopoulos, DG; Pandazis, CI; Papaspyrides, CD

dc.contributor.author	Varelidis, PC	en
dc.contributor.author	Papakostopoulos, DG	en
dc.contributor.author	Pandazis, CI	en
dc.contributor.author	Papaspyrides, CD	en
dc.date.accessioned	2014-03-01T01:15:47Z
dc.date.available	2014-03-01T01:15:47Z
dc.date.issued	2000	en
dc.identifier.issn	1359-835X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13742
dc.subject	Kevlar (TM) fabrics	en
dc.subject.classification	Engineering, Manufacturing	en
dc.subject.classification	Materials Science, Composites	en
dc.subject.other	INTERLAMINAR FRACTURE-TOUGHNESS	en
dc.subject.other	REINFORCED POLYMER COMPOSITES	en
dc.subject.other	CARBON-FIBERS	en
dc.subject.other	GRAPHITE EPOXY	en
dc.subject.other	MODE-I	en
dc.subject.other	INTERFACIAL PROPERTIES	en
dc.subject.other	POLYESTER RESIN	en
dc.subject.other	SHEAR-STRENGTH	en
dc.subject.other	ARAMID FIBERS	en
dc.subject.other	MATRIX	en
dc.title	Polyamide coated Kevlar (TM) fabric in epoxy resin: mechanical properties and moisture absorption studies	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S1359-835X(99)00101-3	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S1359-835X(99)00101-3	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	An experimental investigation was carried out to study the effect of polyamide coatings on the mechanical properties and moisture absorption behavior of epoxy/Kevlar(TM) composites. Kevlar(TM) fabrics were coated with polyamide 6,6 by in situ interfacial polymerization coating and solution dip-coating. Short beam shear tests were performed in order to assess the effect of coating on the adhesion of the fiber to the matrix. Both interfacial and solution coated specimens exhibited worse interlaminar shear strength (ILSS) over uncoated fabrics. Furthermore, double cantilever beam tests were also performed to investigate the effect of the coating on the Mode I fracture toughness. initiation fracture toughness increases for the solution coated fabrics whereas interfacial coating induced deterioration in performance. Finally, water absorption tests were carried out. Weight gain data versus time of immersion were collected at different temperatures and the water uptake at equilibrium (M-infinity) and the diffusion coefficient (D) were calculated. It seems that there: is a direct relationship between the ILSS and the diffusion results. The polyamide coating facilitates debonding of the fibers from the matrix and delamination, allowing more water uptake. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING	en
dc.identifier.doi	10.1016/S1359-835X(99)00101-3	en
dc.identifier.isi	ISI:000087080500004	en
dc.identifier.volume	31	en
dc.identifier.issue	6	en
dc.identifier.spage	549	en
dc.identifier.epage	558	en