DEVELOPMENT OF POLY(PHENYLENE SULFIDE)/NYLON66/GLASS FIBER COMPOSITES WITH HIGH ELONGATION AND IMPACT STRENGTH USING EGMA

摘要

In this study, the toughenning effect of Nylon66 on the PPS/glass fiber composite at various Nylon66 contents and testing temperatures was analyzed using tensile and notched Izod impact test. Also the corresponding fracture surface morphology was observed. First, compatibility of PPS with Nylon66 was examined. It was found that compatibility was low when Nylon66 was a dispersed phase. However, when PPS was a dispersed phase, increased compatibility could be observed. This tendency was similarly observed when glass fiber was added, and the overall effect was an increase of mechanical strength in terms of absolute values. Thus, when Nylon66 was a dispersed phase(minor component), negative deviation from the rule of mixtures relationship was found. In order to improve these deficiencies, compatibilizer EGMA was used. Optimum EGMA content which can improve the strain at break and impact strength was found to be between 3～5wt%.