Fracture resistance of particulate filled polypropene: Effect of surface treatment

Ákos Bezerédi, Zoltán Demjén, Béla Pukánszky

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The fracture resistance of polypropene/CaCO3 composites was studied as a function of interfacial adhesion. The filler was treated with two surfactants and an aminosilane coupling agent. Non-reactive treatment lead to a decrease, while reactive coupling lead to an increase in composite strength. Interaction was quantitatively characterized and compared to fracture resistance. Fracture resistance was characterized by linear elastic fracture mechanics (LEFM) quantities. The critical stress intensity factor (K1c) slightly increased with interaction, while the strain energy release rate (G1c) strongly decreased with it. Deviations were observed from the general tendency, further study is needed for explanation.

Original languageEnglish
Pages (from-to)61-68
Number of pages8
JournalAngewandte Makromolekulare Chemie
Publication statusPublished - Apr 1 1998


ASJC Scopus subject areas

  • Materials Science(all)

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