Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Schematic of a spouted bed apparatus. Dashed arrows indicate the flow of agglomerates driven by an airstream (solid arrows). Polymer solution is injected through a nozzle. The magnified inset in (a) shows the principle of polymer-coating a first-level-of-hierarchy-agglomerate. (b) Scanning electron microscopy image of a PVB-coated agglomerate of 2 levels of hierarchy.
