出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：In this work, polyamide 6 (PA6) was toughened with the terpolymer of acrylonitrile-EPDM-styrene (AES), using ethylene-propylene-diene grafted with maleic anhydride (EPDM-MA), as a compatibilizing agent. The blends were prepared in a co-rotational twin-screw extruder and subsequently injection molded. The properties of impact strength, tensile strength and morphology were evaluated. The results indicated expressive increases in the impact strength of the PA6/AES/EPDM-MA blends, compared to the neat PA6. However, the elastic modulus and tensile strength suffered decreases, due to the increased flexibility of the developed blends. The PA6/AES blend compatibilized with 15% of EPDM-MA presented itself as a supertough and ductile material at room temperature. The images obtained by scanning electron microscopy (SEM) indicated that the increase in the EPDM-MA compatibilizer content favored the presence of more refined and well-adhered particles in the PA6 matrix, thus stabilizing the blend's morphology. In general, the PA6/AES/EPDM-MA blend formulation (60/25/15%) showed potential for high-performance application, with prospects for the production of parts to supply the automotive and electronics industry market.
