The roles of the rubber particle size, the rubber particle size distribution and the constitutive behaviour of the isotactic polypropylene matrix have been studied by combining the Lazerri-Bucknall energy criterion for cavitation with the Van der Sanden-Meier-Tervoort ligament model adapted for impact conditions. It is concluded that an optimised morphology offers great potential to achieve enhanced mechanical properties with far less rubber and hence achieve a superior stiffness/toughness/processing balance.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8271767PMC
http://dx.doi.org/10.3390/polym13132218DOI Listing

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