Spinning drop photographs

Figure 1. Spinning drop photographs of a styrene droplet in 1 1 SLS/cetyl alcohol solution, based on lOiriM SLS, at 65°C.

Figure 11. Photograph of bitumen drop in aqueous NaOH showing low- and high-tension sites due to periodic diffusion of natural surf actants from the oil-water interface to the aqueous phase in a spinning drop tensiometer.

Interfacial Tensions. Initially interfacial tensions were measured by the pendant drop technique. Later studies with an EOR spinning drop interfacial tensiometer gave much information on middle phase films, as shown in the photographs made with a camera mounted on our tensiometer. 

Figure 5. Photographs of oil drops in spinning drop interfacial tensiometer with 0.5% soap solution ...

Hall and Diederichsen (22) projected a stream of droplets (diameters 150 to 170 microns) from the periphery of a spinning disk up into a vertical furnace maintained at a sufficiently high temperature for ignition, 710° C. The spinning disk atomizer employed was capable of producing droplets of uniform, predetermined size. Drum photographic records were obtained of the luminous portion of the droplet trajectory and drop burning times were estimated therefrom. 

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