Development of high performance hybrid matrix/glass fabric composites for self-healing properties

Abstract

An investigation was carried out to develop polymer matrix composites which have the ability to self-repair internal cracks due to the external forces. Present study focuses on the fabrication of hybrid matrix by utilizing epoxy and vinyl ester resin through mixing process and further manufacturing of composites by reinforcing glass fabric via VARTM method for self-healing composites. The prepared hybrid matrix and the composites were investigated by three-point bending and Izod impact tests. The obtained results showed that the flexural strength and Izod impact properties of the hybrid matrix increased as compared to pure vinyl ester matrix but lower than pure epoxy matrix due to the formation of interpenetrating network structure between the molecules of vinyl ester and epoxy resins. The flexural strength and Izod impact strength of the hybrid matrix composites might be increase because of hybrid matrix. For the confirmation of results obtained, the fracture morphological analysis of the hybrid matrix after flexural and impact test were affirmed that the mechanical properties of the composites might be improved by the use of the hybrid resin. Therefore, the present approach of preparing of hybrid matrix for the fabrication of hybrid matrix composites shows a great potential for various applications such as aerospace, automobile, coating, electronic, energy and in many industrial applications.