Abstract
AbstractIn this research, the impact of two different types of ethylene and propylene‐based thermoplastic polyolefin elastomers (TPOs) as well as halloysite nanotubes (HNTs) on the fracture and mechanical characteristics of polypropylene (PP)/TPOs/HNTs blend nanocomposites were studied. The fracture toughness and deformation process were examined employing the essential work of fracture (EWF) methodology and microstructural observation. The validity of the method for all compounds was demonstrated through self‐similarity diagrams of load–displacement and Hill's analysis. TPOs and HNTs had a synergistic impact on the activation of distinct toughness micro‐mechanisms, resulting in the toughness of ternary systems being higher than that of binary blends. The results revealed that the dominant fracture process of the specimen is the cavities, and/or pull out of dispersed TPOs. Also, according to the results, it can be understood that the incorporation of HNTs in increased the EWF and consequently decreased the non‐EWF. The maximum EWF on blend composites increased by 170% compared to neat PP.
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