| Autor: | Jianjun Lu, T. P. Rieker, Hung-Jue Sue |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Bubble Polyethylene Linear low-density polyethylene chemistry.chemical_compound Differential scanning calorimetry Optics chemistry Mechanics of Materials Transmission electron microscopy General Materials Science Lamellar structure Texture (crystalline) Composite material business Anisotropy |
| Zdroj: | Journal of Materials Science. 35:5169-5178 |
| ISSN: | 0022-2461 |
| Popis: | Linear low-density polyethylene (LLDPE) blown films fabricated under two different processing conditions, namely a non-stalk bubble configuration and a stalk bubble configuration, were investigated. Morphological characterization was performed using small-angle X-ray scattering, transmission electron microscopy, infrared dichroism, and differential scanning calorimetry. The findings on crystal orientation characteristics of the films suggest that modification on the widely accepted row orientation model of Keller and Machin may be needed. In comparison to the conventional non-stalk bubble geometry for LLDPE film blowing, the stalk bubble configuration can produce a more randomly orientated lamellar texture, resulting in less anisotropy in mechanical properties and a higher dart impact resistance. A good correlation between mechanical properties and morphological features was found. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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