Polyamide/Polypropylene/Graphite Nanocomposites with Functional Compatibilizers

Bipolymeric composites are widely used to make new materials with predefined properties. Polyamide / Polypropylene (PA/PP) based compounds are often subjects of research because both components are relatively cheap, have useful and good properties, and can be processed by melt blending and extrusion-injection technologies, which are time-saving and environment-friendly technologies due to the possibility of reusing the material. Compatibility of binary polymeric compounds can be accomplished by adding a grafted copolymer, the segments of which have physical or chemical affinity with the two immiscible homopolymers. In this paper, maleic anhydride grafted polypropylene (PP-g-MA) was used. Composites having nanofiller are considered as a new generation of composite materials due to their unique properties. To increase the impact resistance of polymer composites (PA / PP-g-MA / PP) dispersion of graphite nanoparticles (nanoG) in polymeric mass was achieved. In addition to the PA / PP-g-MA / PP / nanoG bipolymer nanocomposite obtaining methodology, the combined effects of graphite treatment and compatibiliser polymer (PP-g-MA) on the structure and properties of the composites were studied. A number of optimal receptions have been developed in different technological conditions. Experimental composites have been physico-mechanically characterized by standardized methods specific to plastics and microscopic analysis -SEM.