Abstract
Melt blown polymer blends offers a good way to combine two polymers in the same fiber generating nonwovens with new and novel properties. In this study, polypropylene (PP) and polyurethane (PU) were blended to prepare PP/PU bicomponent melt blown nonwovens. The spinnability of PP/PU composites was investigated and PP/PU bi-component nonwovens with compositions of 95/5, 90/10, 80/20 and 70/30 were prepared by using the melt blowing technique. The melt blown fibers exhibited a ‘sea-island’ structure with PP as the continuous phase and PU as the dispersed phase. When the content of PU in the blend was above 40 %, PP/PU melt blown nonwovens could not be produced due to fiber breaking. For PP/PU (90/10) nonwovens, it was found that the average fiber diameter decreased with increasing die to collector (DCD) and elevated hot air pressure.
| Original language | English |
|---|---|
| Pages (from-to) | 1200-1207 |
| Number of pages | 8 |
| Journal | Fibers and Polymers |
| Volume | 20 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Jun 2019 |
Keywords
- Melt blown
- Nonwoven
- Polypropylene
- Polyurethane