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Deformation mechanisms of polypropylene/polystyrene multilayered films
- Source :
- Journal of Applied Polymer Science. 126:1593-1599
- Publication Year :
- 2012
- Publisher :
- Wiley, 2012.
-
Abstract
- Multilayered composites of polypropylene (PP) and polystyrene (PS) fabricated by a layer-multiplying coextrusion technique are described. The aim of this investigation was to find a correlation between the morphology and the mechanical and micromechanical deformation behavior. The multilayered films had primarily continuous layers, exhibiting only few defects in layer construction and turning into an irregularly layered system when the calculated layer thickness was only 5 nm. The morphology and layer thickness of both the PP and PS layers affected the mechanical and the micromechanical behavior, which was brittle for the films having PS layers thicker than 75 nm and ductile when the PS layers were 50 nm and thinner. Transmission electron microscopy showed crazes in the thicker PS layers and homogeneous deformation in the thinner ones. The molecular orientation during deformation of the ductile films was calculated from rheo-optical measurements with Fourier transform infrared spectroscopy. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
- Subjects :
- Polypropylene
Materials science
Polymers and Plastics
Chemie
General Chemistry
Surfaces, Coatings and Films
chemistry.chemical_compound
Brittleness
Deformation mechanism
chemistry
Transmission electron microscopy
Materials Chemistry
Polystyrene
Deformation (engineering)
Composite material
Fourier transform infrared spectroscopy
Layer (electronics)
Subjects
Details
- ISSN :
- 00218995
- Volume :
- 126
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Polymer Science
- Accession number :
- edsair.doi.dedup.....9e41417a12b7c2708b5ce048a1a479c5
- Full Text :
- https://doi.org/10.1002/app.36657