Production and properties of electrosprayed sericin nanopowder

Figures & data

Figure 1. Sericin sponge.

Figure 2. Typical SEM images of sericin nanoparticles electrosprayed at 15 kV. Concentrations (%), feed rates (ml h⁻¹) and nozzle–collector distances (cm) are 0.9, 0.044, 20 (A); 0.9, 0.044, 25 (B); 0.5, 0.044, 20 (C); 0.5, 0.044, 25 (D); 0.5, 0.022, 20 (E); 0.5, 0.022, 25 (F).

Figure 3. Average size of electrosprayed sericin nanoparticles versus sericin concentration in dimethyl sulfoxide (feed rate 0.044 ml h⁻¹, voltage 20 kV, nozzle–collector distance 20 cm).

Figure 4. Sericin solution viscosity versus sericin concentration in dimethyl sulfoxide.

Figure 5. Surface tension of sericin solution versus sericin concentration in dimethyl sulfoxide.

Figure 6. Average size of electrosprayed sericin nanoparticles versus electrospraying voltage. The feed rate is 0.044 ml h⁻¹ and the nozzle–collector distance is 20 cm (A) or 25 cm (B).

Figure 7. Average size of electrosprayed sericin nanoparticles versus nozzle–collector distance. The feed rate is 0.044 ml h⁻¹ and the voltage is 20 kV (A) or 15 kV (B).

Figure 8. Average size of electrosprayed sericin nanoparticles versus feed rate. The voltages and nozzle–collector distances are 20 kV, 20 cm (A); 20 kV, 25 cm (B); 15 kV, 15 cm (C).

Figure 9. FTIR spectra of sericin sponge and electrosprayed sericin nanoparticles.

Figure 10. XRD patterns of sericin sponge and electrosprayed sericin nanoparticles.