Moisture influence on the elastic plastic fracture mechanical behavior of PA6 rubber blends
The rubber phase in PA6-EOR blends does not only have an influence on the mechanical properties of the blend, like the Young’s modulus or the notched impact strength, but also strongly affects the fracture behavior. Using the method of essential work of fracture, differences in the blend morphology between a dispersedly dissolved rubber phase and a co-continuous morphology were detected. The specific essential work of fracture of the blends under dry conditions was improved by low water absorption. With increased water absorption, the specific essential work of fracture deteriorated again.
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