17 years ago
I've designed a flow cell made up of 2 pieces of plexiglas with fluid
flowing in between. The top and bottom pieces are separated by a gasket
and pressed together by fasteners. The thickness of the gasket therefore
defines the depth of the flow channel. I would like to vary the
thickness from 0.5 mm to 2mm (after compression) by using gaskets of
different thickness. When fluid is flowing through the flow cell,
depending on the flow velocity, the internal pressure can vary from 0 to
5 atmosphere. Right now, I'm sourcing for a suitable gasket material.
Apart from the main criterion that it mustn't leak, it is also
imperative that its thickness be relatively constant after a certain
compressive stress. This requirement is necessary as the fasteners are
hand tightened and so compression forces can vary by quite alot.
Finally, the material should resists acids and alkalies. What would you