Preparation and Characterization of Epoxy Resin Composites With Enhanced Mechanical Properties and Heat Resistance via Blending With Polyimide Oligomer
N , N , N ′, N ′‐tetraglycidyl‐4,4′‐diaminodiphenylmethane (TGDDM) is a glycidylamine epoxy resin with excellent heat resistance and rigidity. However, its inherent high brittleness restricts its application scope. The use of thermoplastic polyimide to toughen EP has several drawbacks, such as increased visc...