The mechanical properties of composites based on polyamide 6 (PA6), polyamide 66 (PA66) and polyphthalamide (PPA) reinforced with fiberglass were tested. Flexural strength, Shore and Rockwell hardness and also notched and without a notch impact strength according to Charpy were determined. The best results of the strength tests were observed for the PA66 composite with 35 wt % fiberglass. The analyzed composite materials can be successfully used in the production of substitutes for machine elements made of metal.
Technological progress spurs the creation of new machine designs, the development of new highly advanced technologies, as well as the introduction of new materials, including polymeric ones, that meet the economic and ecological criteria. An analysis of the literature reveals that there are few works outlining the rules for the design of machine components using polymeric materials, including composites and nanocomposites. This article is a review of the literature on the use of polymer matrix thermoplastic composites (PA6 -polyamide 6, PA66 -polyamide 66 and POM -polyoxymethylene) in toothed transmission systems. The presented examples demonstrate the production of hybrid polymer nanocomposites with addition of inorganic fillers and their application in the manufacture of machine components, including gears.
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