Flame retardancy of fibre-reinforced epoxy resin composites for aerospace applications |
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| Authors: | A Toldy B SzolnokiGy Marosi |
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| Institution: | a Department of Polymer Engineering, Budapest University of Technology and Economics, M?egyetem rkp. 3, 1111 Budapest, Hungary
b Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, M?egyetem rkp. 3, 1111 Budapest, Hungary |
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| Abstract: | The applicability of phosphorus-containing reactive amine, which can be used in epoxy resins both as crosslinking agent and as flame retardant, was compared in an aliphatic and an aromatic epoxy resin system. In order to fulfil the strong requirements on mechanical properties of the aircraft and aerospace applications, where they are mostly supposed to be applied, carbon fibre-reinforced composites were prepared. The flame retardant performance was characterized by relevant tests and mass loss type cone calorimeter. Besides the flame retardancy, the tensile and bending characteristics and interlaminar shear strength were evaluated. The intumescence-hindering effect of the fibre reinforcement was overcome by forming a multilayer composite, consisting of reference composite core and intumescent epoxy resin coating layer, which proved to provide simultaneous amelioration of flame retardancy and mechanical properties of epoxy resins. |
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| Keywords: | Epoxy resin Carbon fibre-reinforced composites Phosphorus-containing reactive amine flame retardant Effect of flame retardants on mechanical properties |
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