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. 2022 Dec 13;9(6):520–534. doi: 10.1089/3dp.2021.0019

FIG. 6.

FIG. 6.

SEM images of spray-dried silica-treated silicone powders coated with PVB show aggregation due to the physical attraction between particles. (a, b) SEM images of silica-treated silicone powder without polymer coating for control group. The silicone particles were not heavily aggregated due to the lack of the binder at the silica surface. The samples had a 40.8 μm maximum aggregated particle size. (c) Nonvolatile ratio 5%. (d) Nonvolatile ratio 20%. (e) Polymer coating ratio 8%. (f) Polymer coating ratio 20%. SEM, scanning electron microscope.