特異な相構造を有するポリプロピレン/ポリアミド11アロイの衝撃変形特性

抄録

Polypropylene/Polyamide11 (PP/PA11) alloy has a unique phase structure, which is called “salami structure”, of nano order. It has been found that this material is superior to a polycarbonate alloy known as an impact resistant resin. However, the impact evaluation method is Charpy test or puncture test. Therefore, the compressive strength of PP/PA11 alloy and its strain rate dependence are unknown. In this study, the impact deformation properties of PP/PA11 alloy having salami structure are evaluated, and the possibility of application as automobile material is considered. 100%PP/PA11 alloy (PP/PA11), 100%PP (PP) and 70%-PP/PA11 alloy/30%-PP (70/30) were prepared. All three specimens showed a tendency of higher flow stress in the impact test than in the quasi-static test. When observing the change in flow stress, the initial stress of PP/PA11 is lower than that of the other two types, and the stress increases as deformation progresses. It was suggested that PP/PA11 has high impact energy absorption characteristics.