Continuous Platforming

We will continue platform extensions, taking Nafion fluoropolymer membranes from chloralkali cells and catalysts to advanced fuel cells, and Kapton polyimide film from flat electronic computer circuits to complex flexible circuits in cell... 

Long Walkways or Continuous Platform on Horizontal fessel... 

There are two basic platforms for droplet microreactors the planar platform and the in-channel continuous platform. In a planar platform, the droplet can move freely on a planar surface, while the motion of the droplet in an in-channel continuous platform is restricted by microchannels. The actuation of droplets in a planar platform is based on nonmechanical concepts such as electrowettmg, thermocapillary forces, and magnetic forces. Most in-channel... 

Droplets are formed by shear stress or a pressure drop in an in-channel continuous platform. The two basic configurations for droplet formation are shown in Fig. 4. The cross-junction configuration is similar to that for hydrodynamic focusing. The carrier fluid enters the channel from the middle inlet, while the droplet liquids join from both sides (Fig. 4a). The T-junction configuration lets the droplet liquids join perpendicular to the carrier flow (Fig. 4b). The formation behavior of droplets depends on the capillary number, which represents the ratio between the friction force and the surface tension in a two-phase system ... 

Droplet Microreactor, Fig. 4 Droplet formation in an in-channel continuous platform (a) cross-junction and (b) T-junction... 

Because the droplets are formed directly in the microchannel, very small droplet microreactors with sizes in the range Ipl to 100 nl can be formed in an in-channel continuous platform The confined environment removes the residence time distribution due to the nonuniform... 

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