Table 2.
Electrospinning conditions of PLA mats.
| Sample: PLA- 1 g | Polymer solution | Process parameters | Collector | Ambient conditions | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solvent | Concentration (w/v%)∗ | Age (day) | Needle size (G) | Tip-collector distance (cm) | Voltage (kV) | Flow rate (mL/h) | Dimension | Speed | RRH (%) | Temp. (°C) | ||||
| Length (cm) | Radius (m) | MD | TD (m/min) | |||||||||||
| Linear velocity (m/s)∗∗ | Angular velocity (rpm) | |||||||||||||
| A1 | TFA-DCM: (1 : 1) | 7.7 | 0 | 22 | 15 | 16–18 | 0.5 | — | 0.075 | 2.25 | 300 | 0.3 | 10–15 | 22 |
| A2 | 3.6 | 480 | 1 | |||||||||||
|
| ||||||||||||||
| B1 | TFA-DCM: (1 : 1) | 10 | 0 | 17 | 13.5 | 23–30 | 10 | 2.25 | 300 | 0.3 | 10–15 | 22–26 | ||
| B2 | 3.6 | 480 | 1 | |||||||||||
MD: machine direction; TD: transverse direction.
∗w/v (%) = mass solute (g) ÷ volume solution (mL) × 100.
∗∗The general equation: V (linear velocity) (m/s) = r (radius) (m) ∗ RPM (rounds/min) ∗ 0.1 (w or angular velocity) or 2∗3.14∗R∗RPM/60.