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 gasketand 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 recommend?
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