Influence of Short Glass Fibers on the Mechanical Performance of PA66/PA6 blend Composites for High strength tribo Applications

the polymer blend of Polyamide66 and Polyamide6 (PA66/PA6) (80wt. %/20wt. %) were selected for the study. These blends were reinforced with 10,20 and 30wt. % of silane treated short glass fibers( SGF) and these composites were prepared by using melt mixing method with the help of twin screw extruder. The mechanical properties such as tensile strength, flexural strength, impact strength were studied in addition to hardness of the blend composites as per ASTM. The results revealed that the addition of SGF into PA66/PA6 blend enhanced the mechanical properties of the polymer blend. Low loading of SGF into the blend experienced deterioration in tensile and flexural strength. But the higher loading of SGF into the blend increased the strength of the composite remarkably. The density of PA66/PA6 blend increased after the SGF addition. The impact strength of the studied composites was appreciable after higher loading of SGF into the blend. The decreasing trend was due to the immiscible nature of PA66 and PA6 phases due to different structural geometry in the polymer chain. However, the effect of higher loading of SGF into the blend on the mechanical behavior is greatly appreciable.