Journal
COMPOSITES PART B-ENGINEERING
Volume 89, Issue -, Pages 117-126Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2015.10.045
Keywords
Polymer-matrix composites (PMCs); Fire properties; Thermal analysis; Resin flow
Funding
- DAC (Aerospace District of Campania) [PON 03PE_00138_1/1 IMM]
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The interest for natural fibers as reinforcement in composites is growing for a large number of products also for aeronautic applications, where the flame retardant requirement is fundamental. In this research, ammonium polyphosphate was incorporated as flame retardant into hemp epoxy biocomposites produced by infusion technology. Cone calorimeter, vertical burning, dynamic mechanical analysis and bending tests were performed in order to study fire and mechanical behavior of the produced biocomposites with different percentage of ammonium polyphosphate. The results showed a decisive improvement of the flame properties; no-effect on their mechanical properties and on the technological feasibility of the process were observed. Therefore, the addition of ammonium polyphosphate enhanced flame retardancy of hemp/epoxy-resin biocomposites without sacrificing their mechanical properties. (C) 2015 Elsevier Ltd. All rights reserved.
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