期刊
JOURNAL OF COMPOSITE MATERIALS
卷 46, 期 12, 页码 1439-1451出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998311420311
关键词
glass fibers; nanocomposites; fracture toughness; fiber; matrix adhesion
资金
- Italian Ministry of Research and University (MIUR) [20075939JY_003]
Various kinds of organo-modified clays were dispersed at different amounts in an epoxy matrix. After clay addition, the viscosity of the epoxy resin resulted still acceptable for a possible usage as matrices for fiber-reinforced composites. The formation of intercalated microstructures led to substantial improvements of the thermal (glass transition temperature) and mechanical (fracture toughness) properties of the epoxy matrix. E-glass fiber/matrix interfacial shear strength was evaluated by the single-fiber microdebonding method. The introduction of organo-modified clays led to the formation of a stronger fiber-matrix interface, with an increase of the interfacial shear strength of about 30%. Concurrently, the evaluation of the fiber/matrix contact angle revealed an improved wettability when organo-modified clays were added.
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