engleski

Impact of ageing on mechanical properties of polyamide castings

With longer exposure to atmospheric impacts the products lose their properties and the life cycle decreases. Consequently, there is need to determine the material properties after a longer exposure to atmospheric impacts. The paper has studied the impact of natural and laboratory ageing on the mechanical properties of the reaction cast polyamide 6 (PA6) with addition of oil. The tensile properties, hardness and toughness were studied. Since polyamide 6 with addition of oil was selected, the friction factor and the abrasion wear have been studied as well. In determining the required properties of castings from PA6 it should be taken into account that they are the result of the reaction primary shaping, which means that fi rst there is primary shaping of product, and then primary structuring at molecular and higher levels.

abrasion wear; ageing; friction factor; hardness; impact strength; polyamide 6 + oil; reaction casting; tensile properties

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