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Filled PMMA: mechanical properties and fracture behaviour
Author(s) -
Maspoch Maria Lluïsa,
Tafzi Abdenour,
Ferrando Haritz Eder,
Velasco José Ignacio,
Martínez Benasat Antonio
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200105)169:1<159::aid-masy159>3.0.co;2-a
Subject(s) - materials science , crazing , composite material , fracture (geology) , scanning electron microscope , volume fraction , ultimate tensile strength , flexural strength , filler (materials) , polymer
The aim of this work is to study the influence of the filler fraction and that of the filler/matrix interfacial adhesion on the mechanical properties and on the fracture behaviour of a poly(methyl methacrylate) PMMA (for injection moulding). The variation of the tensile and flexural mechanical properties with the filler volume fraction was determined. The changes in the fracture behaviour produced by the fillers were studied by evaluating the K IC and G IC parameters of the LEFM (Linear Elastic Fracture Mechanics) by carrying out tests with SENB geometry at room temperature and low strain rates. After fracture surfaces examination by SEM (Scanning Electron Microscopy), it was found that the surface treatment had been rather effective and that the fracture toughening mechanism was multiple crazing.