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Polypropylene composites: Fracture mechanics analysis of impact strength
Author(s) -
Bramuzzo M.,
Savadori A.,
Bacci D.
Publication year - 1985
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.750060102
Subject(s) - materials science , polypropylene , composite material , ductility (earth science) , brittleness , toughness , fracture mechanics , calcium carbonate , fracture toughness , fracture (geology) , izod impact strength test , ultimate tensile strength , creep
An investigation according to LEFM (Linear Elastic Fracture Mechanics) principles has been carried out to determine impact resistance of PP (polypropylene) containing calcium carbonate in comparison with other types of mineral fillers. The tests have also allowed us to emphasize the strong influence of matrix brittleness or ductility on decreasing or increasing of toughness. In any case, of those materials tested, the calcium‐carbonate‐filled polypropylene is the material with the best performance. Scanning microscope (SEM) analysis and comparison of the results with the theoretical models reported in the literature made it possible to point out some particular aspects of this type of behavior.