Blends of a polypropylene matrix and a miscible phase of ethylene vinyl acetate and ethylene methyl acrylate copolymers were produced by twin-screw extrusion. The miscible phase can be crosslinked in situ through a catalyzed transesterification reaction. Mechanical properties of reactive and nonreac
Toughening mechanism of polymer blends: Influence of voiding ability of dispersed-phase particles
β Scribed by Haojun Liang; Wei Jiang; Jilin Zhang; Bingzheng Jiang
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 395 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
β¦ Synopsis
The parameters which effect the cavitation strain of polymer blends toughened with a shear yield mechanism have been studied by analysis of the stress acted on the equatorial plane of dispersed-phase particles. As a result, the cavitation strain of polymer blends depends on the Young's modulus and the Poisson's ratio of the dispersed-phase particles and the matrix and also on the break stress of dispersed-phase particles. We tried to provide a criterion for selecting the materials used as dispersed-phase particles which can effectively enhance the toughness of polymer blends.
π SIMILAR VOLUMES
Isotactic polypropylene blends with 0-20 vol % thermoplastic elastomers were prepared to study the influence of elastomer particle size on mechanical properties. Polystyrene-block-poly(ethene-co-but-1-ene)-block-polystyrene (SEBS) was used as thermoplastic elastomer. SEBS particle size, determined b
In this article, the dynamic mechanical properties of a multiphase system containing a dispersed phase with complex morphology is discussed with respect to the microstucture of the dispersed phase. The samples are prepared by emulsion blending of matrix particles (MP ) and particles for a dispersed
A predictive scheme is proposed for the simultaneous calculation of the modulus and yield (or tensile) strength of ternary polymer systems. According to the continuity or discontinuity of constituting phases, the scheme combines in two steps the models for binary systems: (i) in the interval of phas
Using nuclear reaction analysis composition-depth profiling, we investigate the influence of symmetric/asymmetric confining walls on the equilibrium configuration of thin films of phase-separated polymer blends. Depth profiles of samples annealed under symmetric boundary conditions show a laterally