Mode II fracture characterization of toughened epoxy resin composites

Abstract Epoxy resin used commonly as a matrix for polymer composite materials has good handling properties, but is too brittle. That why various modifiers are to increase the flexibility of products based on epoxy resin. This leads two issues: how efficiently toughness without impacting significantly other well measure in materials. The work aimed show addition reactive rubber modifier will affect fracture obtained laminates during longitudinal shear test (Mode II fracture). In total, three epoxy-glass with different matrices were made and subjected End-Notched Flexure according ASTM D7905/D7905M standard: (1) basic Epidian 6 resin, (2) modified 10% Albipox 1000 liquid (3) Hypro 1300X16 ATBN rubber. Based results, it can be seen that modulus elasticity was decreased compared laminate pure (by ~ 25%). However, rubbers increased Mode ( G IIc ) by 40–60%. Thus benefits modification outweigh drawbacks if an important designing consideration given application. applicability ENF method successfully tested, potential indicated—careful control specimen thickness necessary.