Effects of environmental exposure on fiber/epoxy interfacial shear strength

Autor:	Umesh Gaur, Bernard Miller
Rok vydání:	1990
Předmět:	Materials science Polymers and Plastics Adhesive bonding Bond strength Glass fiber General Chemistry Environmental exposure Epoxy Aramid visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Shear strength Fiber Composite material
Zdroj:	Polymer Composites. 11:217-222
ISSN:	1548-0569 0272-8397
DOI:	10.1002/pc.750110404
Popis:	A microbond technique for direct determination of fiber/resin interfacial shear strength in composites (Miller et al., 1987) has been used to investigate the influence of environmental conditions on adhesive bonding in certain systems. The small dimensions involved in the method facilitate uniform exposure and short exposure times. Significant changes in both average shear strength and in shear strength distributions are observed on exposing aramid/epoxy and glass/epoxy microbond assemblies to steam or hot water. Shear strength drops to a plateau value in both cases, the reduction being more drastic with the glass fiber. Vacuum drying restores shear strength completely in aramid/epoxy microassemblies, even when the surface of the aramid fiber has been chemically modified, but there is only partial regeneration of bond strength with the glass/epoxy system. 15 refs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1d393514cb4c60956a01a9f7ff5473f7 https://doi.org/10.1002/pc.750110404 Zobrazit plný text záznamu Plný text