Fracture behavior and deformation mechanisms of polypropylene/ethylene-propylene-diene blends
-
Yuhui Ao
,
Fang Feng
Abstract
The fracture behavior and deformation mechanism of polypropylene (PP)/ethylene-propylene-diene rubber (EPDM) were studied by scanning electron microscopy and transmission electron microscopy analyses. The deformation mechanism was investigated under different conditions. Voids were seen under all the conditions because of matrix shear yielding, indicating that rubber particle cavitation took place during the blend fracture process; moreover, the void size and density increased as the fracture surface was approached. However, the void density and extent of elongation of the rubber particles in the deformation zone decreased with increasing test speed rate. Many voids were positioned in the rubber particles, confirming that matrix shear yielding initiated by rubber particle cavitation was the main deformation mechanism during ductile fracture in the matrix.
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©2016 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Original articles
- Prolonged protein immobilization of biosensor by chemically cross-linked glutaraldehyde on mixed cellulose membrane
- Hybrid biocomposites from agricultural residues: mechanical, water absorption and tribological behaviors
- Effects of nucleation and stereocomplex formation of poly(lactic acid)
- Preparation and characterization of polystyrene-MgAl layered double hydroxide nanocomposites using bulk polymerization
- Fracture behavior and deformation mechanisms of polypropylene/ethylene-propylene-diene blends
- Effect of mechanical properties of metal powder-filled hybrid moulded products
- Ablation and thermo-mechanical tailoring of EPDM rubber using carbon fibers
- Effects of mechanical strength, working temperature and wax lubricant on tribological behavior of polystyrene
- Temperature rise in a verging annular die
- Numerical investigation of the temperature influence on the melt predistribution in a spiral mandrel die with different polyolefins
Articles in the same Issue
- Frontmatter
- Original articles
- Prolonged protein immobilization of biosensor by chemically cross-linked glutaraldehyde on mixed cellulose membrane
- Hybrid biocomposites from agricultural residues: mechanical, water absorption and tribological behaviors
- Effects of nucleation and stereocomplex formation of poly(lactic acid)
- Preparation and characterization of polystyrene-MgAl layered double hydroxide nanocomposites using bulk polymerization
- Fracture behavior and deformation mechanisms of polypropylene/ethylene-propylene-diene blends
- Effect of mechanical properties of metal powder-filled hybrid moulded products
- Ablation and thermo-mechanical tailoring of EPDM rubber using carbon fibers
- Effects of mechanical strength, working temperature and wax lubricant on tribological behavior of polystyrene
- Temperature rise in a verging annular die
- Numerical investigation of the temperature influence on the melt predistribution in a spiral mandrel die with different polyolefins
