Properties of glass‐fiber reinforced composites based on liquid diglycidyl ether of bisphenol‐c‐epoxy resin

Abstract Glass‐fiber reinforced epoxy composites were fabricated from the matrix resin liquid diglycidyl ether of bisphenol‐C (DGEBC) using various amines as curing agents with and without fortifier (20 phr). The epoxy laminates were evaluated for their mechanical properties, such as flexural strength, interlaminar shear strength (ILSS), tensile strength and shore‐D hardness. Dielectric properties, such as the dielectric constant, tan δ, dielectric loss and the resistivity of the laminated samples, were measured. The effect of the chemical reagents on the mechanical properties (i.e. flexural strength, lLSS) was also studied.