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Effect of microcellular foaming on the fracture behavior of ABS polymer
Author(s) -
GómezMonterde Javier,
Schulte Manfred,
Ilijevic Stefan,
Hain Jörg,
SánchezSoto Miguel,
Santana Orlando O.,
Maspoch Maria Lluisa
Publication year - 2016
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.43010
Subject(s) - materials science , composite material , fracture toughness , flexural strength , elongation , modulus , toughness , flexural modulus , core (optical fiber) , anisotropy , fracture (geology) , displacement (psychology) , polymer , ultimate tensile strength , psychology , physics , quantum mechanics , psychotherapist
In this work, the properties of microcellular ABS were studied. Foamed samples exhibited a solid skin/foamed core structure, with some elongated cells in the flow direction, while spherical cells were mostly observed in the transversal direction. The flexural modulus, flexural strength, and fracture toughness K Ic decreased with the density. However, the Crack Tip Opening Displacement ( CTOD ) was found to increase with the foaming ratio. The evolution of the mechanical properties and fracture toughness was well described by prediction models considering the skin/core morphology of these microcellular materials. Foaming increased the anisotropic behavior of the material, due to the cell elongation caused by the fountain flow during injection. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43010.
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