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Glass-fibre-reinforced epoxy composites were fabricated from the matrix resins diglycidyl ether of bisphenol A (DGEBA) and tetraglycidyl diaminodiphenyl methane (TGDDM) using different amines as curing agents. The characteriation of these epoxy laminates included resistance to chemical reagents, mechanical properties [e.g. shore-D hardness, flexural strength and interlaminar shear strength (ILSS)] as well as dielectric properties including dielectric constant, loss tangent (tan δ), electrical resistance and breakdown voltage.

Epoxy systems composed of conventional (DGEBA), tetrajunctional (TGBATC) and phosphorylated (HTAPPO) epoxy resins were used for the fabrication of glass-fibre-reinforced composites using aromatic diamines (DDM and DDS) as curing agents. The fabricated composites were evaluated for their limiting oxygen index, mechanical properties, dielectric properties and chemical resistance. The incorporation of an epoxy fortifier showed significant improvement in mechanical properties.

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