MECHANICAL-PROPERTIES OF AIR-JET COMMINGLED YARN COMPOSITES

Air-jet commingled yam of 50:50% wt glass fiber/polypropylene filament was manufactured to study the effect of the structure of various yam on the mechanical properties of composites. Unidirectional thermoplast ic composites were fabricated in a sheet mold in a hot press. The stru cture of air-jet commingled yam was observed by SEM. The bending test of air-jet commingled yarn composites was performed on the DS-500 test er using a three-point loading system. Experimental results showed tha t the bending strength of composites was affected by the impregnated p roperties and bulkiness of the glass fiber bundle.