Extrusion International 5-2020

36 Extrusion International 5/2020 MATERIALS The development of this new material will provide con- tinuity in the manufacture of many products that today are manufactured with excellent performance and mar- ket acceptance, however, due to the economic impossi- bility due to the high cost of pure Noryl PPX, the replace- ment of this material by other engineering polymers is contemplated. Methodology In obtaining the Noryl PPX and Polypropylene blends, the following polymers were used: Noryl PPX and Nat- ural Polypropylene. The preparation of the blends fol- lowed the technique of mechanical mixing, performed directly on the brand injection machine, Sinetron SYA 900DT thread D = 40, by injection process. The polymer mixture was processed by heating and shearing the materials, inside the injector cannon, the same process normally used on an industrial scale. Table 1 shows the percentage of each polymer in the blend composition. 6 mm thick plates were produced by the extrusion process and subsequently processed by thermoforming in the molding of bus bumpers. For the injection of the samples, the injection parame- ters were used according to Table 2. Results The blending results are presented and discussed below: 70% Noryl PPX + 30% Polypropylene 60% Noryl PPX + 40% Polypropylene 50% Noryl PPX + 50% Polypropylene The results will always be compared with the perfor- mance of the original Noryl PPX material. The results obtained through mechanical tensile tests can be verified and compared according to Table 3. By Jean Zolet With the increasing cost of Noryl PPX, a blend of phenylene polyoxide with polypropylene, supplied exclusively by a single company, monopoly in the manufacture of this polymer in the world, the need arose for the development of a new material, where a greater amount of virgin polypropylene will be added to Noryl PPX, forming a new polymer blend with the main objective of cost reduction. The studies seek to analyze the possibility of implementing this blend in the production process based on physical and chemical tests, in the study of miscibility and compatibility as well as the cost of the materials involved and processing. The present research aims to formulate Noryl PPX blends with natural polypropylene, at a competitive cost in the polymeric materials market, which maintains similar properties and characteristics of the pure Noryl PPX material, currently used in bus bumpers Noryl PPX Polymeric Blend and Natural Polypropene