Abstract
The Izod impact strength and tensile properties of blends Nylon 6 and maleated ethylene–propylene rubber (EPR- g-MA) reinforced with glass fiber as a function of glass fiber and EPR- g-MA content were examined. Materials containing 0–20 wt% glass fiber and 0–20 wt% EPR- g-MA were formulated. The modulus and yield strength of the unreinforced materials decreased as EPR- g-MA content increased. This effect can be completely counteracted by the addition of more than 10 wt% glass fiber, regardless of rubber content, with blends containing 20 wt% glass fiber showing substantially higher modulus than that of Nylon 6. Izod impact strength of super-tough blends was reduced by ∼50% with the addition of small amounts of glass fiber; however, these glass fiber reinforced, rubber-toughened blends still retain a high impact strength.
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