Abstract

The present paper deals with the manufacturing of composites, consisting of continuous aramid fibres and nylon-12, by applying the so-called dry powder impregnation process. The fibres are pre-impregnated by the deposition of fluidised powder particles on aramid fibre tows which are consolidated by heat and pressure to form continuous prepregs. Features of the nylon-12 powders which are important for the dry powder impregnation process are discussed. Material, tool and processing parameters influencing the achievement of impregnation and therefore the fibre volume content of the prepregs are outlined.

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