Casting semi-solid

Once the film is metered onto the carrier surface it is conveyed into the drying chamber, where the actual solvent removal takes place. For a period of time, depending upon the thickness of the cast and the drying rate, the fluid film on the surface of the carrier is free to flow Therefore the surface it rides on must be flat, smooth, and level. During the first stage of drying, the fluid suspension of particles in the slip forms a semi-solid, gel-like structure. When this gel forms, the... 

On a periodic basis, the cast skins 60m the developing insects were aspirated from the undersides of the leaves into Pasteur pipettes. Collections of cast s s, which were held at -20 C, were pooled (10 g), extracted with CH2CI2, and concentrated to yield 0.53 g of nearly black semi-solid residue. 

S Mathieu, C Rapin, J Kazan, P Steinmetz, Corrosion behaviour of high pressure die-cast and semi-solid cast AZ91D alloys. Corrosion Science, 2002, 44, 2131-2156. 

D. Modified Semi-Quantitative Solid Surface Studies. The ASTM protocol for polymer biodegradation by fungus was modified for the studies involving the zinc chloride-containing polymer matrices. Zinc chloride (10% w/w) was dissolved in 2 mL acetone and added to the polymer solutions. Films were cast on the bottom of sterile petri dishes and the solvent allowed to evaporate. Warm glucose supplemented (1% w/w) BMS-agar (20 mL) was inoculated with 0.1 mL of the spore suspension and then poured over the surface of each polymer film. The plates were incubated at room temperature for two to four weeks after which the effect of the zinc on microbial growth was visually observed. 

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