Abstract
Background: The aim of the work presented was to determine the morphology development and relevant change in fibre diameter of a binary polymer blend system during an electrospinning process. The size of the fibre diameter is one of the important factors determining the general properties of non-woven mats formed from electrospun fibres. Results: The morphology and diameter of electrospun polyacrylonitrile (PAN)/poly(methyl methacrylate) (PMMA) blends were investigated as a function of blend ratio using scanning electron microscopy. The diameter of the electrospun PAN/PMMA fibres decreased with increasing PMMA content up to 50 wt%, and then increased again with further increase of PMMA. After thermal treatment, the fibres shrank, and an irregularly shaped morphology was observed. Conclusion: The electrospinning of incompatible PAN/PMMA blends leads to a microphase-separation morphology of fibres. A phase inversion occurs at a PMMA content of between 50 and 75 wt%. Due to the phase inversion, the fibre diameter shows a minimum value at the relevant composition.
| Original language | English |
|---|---|
| Pages (from-to) | 1357-1362 |
| Number of pages | 6 |
| Journal | Polymer International |
| Volume | 57 |
| Issue number | 12 |
| DOIs | |
| State | Published - 2008 |
Keywords
- Diameter
- Electrospinning
- Morphology
- PAN/PMMA blend
- Viscosity
Quacquarelli Symonds(QS) Subject Topics
- Materials Science
- Engineering - Petroleum
- Chemistry
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