Study of the Influence of the Forming Method on the Physical and Mechanical Characteristics of Thermoplastic Polymeric Materials

Abstract

This paper presents the results of the study of the effect of polymer materials compression and injection methods of molding on the physical and mechanical properties of the resulting samples. Widely used polymers such as poly-amide, thermoplastic elastomer and polyketone were taken as the objects of study. Granite composites based on polyamide were produced by PolyLab Rheomex RTW 16 twin-screw extruder, then modified with fine powders of schungite, graphite and silicon dioxide. Samples for testing in the form of double-sided blades were obtained by injection molding on a Babyplast 6/10V machine and compression molding on a Gibitre hydraulic press. Elastic-strength tests of the obtained samples were carried out on a tensile testing machine UAI-7000 M.

Influence of Injection Rate on Mechanical Properties of the Molding Composition Based on Polyamide 6 and Carbon Nanotubes

“…Earlier in studies [2] it was shown that parts made of composite materials based on polyamide-6, obtained by injection molding, have higher elastic-strength characteristics in comparison with parts obtained by compression molding.…”

“…The need for new composite materials is due to the necessity to operate a number of machine-building parts under the influence of cyclic mechanical loads, high temperatures and various aggressive environments. These requirements are largely met by thermoplastic composites based on polyamide, including those modified with active nanofillers [2][3][4].…”