Increasing recyclability of PC,ABS and PMMA: Morphology and fracture behavior of binary and ternary blends |
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| Authors: | Jan Rybnicek Ralf Lach Monika Lapcikova Josef Steidl Zdenek Krulis Wolfgang Grellmann Miroslav Slouf |
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| Affiliation: | 1. Czech Technical University in Prague, Department of Materials Engineering, Prague, Czech Republic;2. Martin‐Luther University Halle‐Wittenberg, Centre of Engineering, Halle (Saale), Germany;3. Vienna University of Technology, Institute of Materials Science and Technology, Vienna, Austria;4. Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v. v. i., Prague, Czech Republic |
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| Abstract: | Binary and ternary blends of PC, ABS, and PMMA were studied. The blends were produced from original and recycled materials by melt mixing in a wide range of compositions. Instrumented Charpy impact testing, tensile testing, rheology investigations, and electron microscopy were carried out to determine the relationship between the deformation and fracture behavior, blend composition, morphology, and processing parameters. Resistance against unstable crack propagation was evaluated using the concepts of J‐integral and crack‐tip‐opening displacement (CTOD). The transition from ductile elastic‐plastic to brittle‐linear elastic fracture behavior was observed in the case of PC/ABS/PMMA blend at 10% of PMMA. Reprocessing had only a slight influence on the deformation and fracture behavior of the recycled blends. The blends produced from recycled materials proved to be competitive with the original pure materials. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci 2008 |
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| Keywords: | ternary amorphous blends recycling toughness rheology structure– property relations |
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