The future of fuel cell generators belongs to plastics. Modern chemistry affords component of fuel cells, except electrodes, electric elements, and heat exchangers, to be made of plastics. There exist fibre glass – reinforced plastics that are stronger than steel. some fluroplasts out do any metal in corrosion resistance in various aggressive media at temperatures up to 300 C. The insulation properties of fluroplasts are by no means inferior to that of best ceramic insulators. Some other remarkable synthetic materials are worth mentioning, namely, polyethylene, polysulfone, organo–silicone rubbers and sealing compounds, epoxy enamels, to name just a few suitable materials. The only limitations of these materials are operating temperature and their poisonous emissions.
Cheap ferrous metals have been lately used also for components operating in aggressive media. The required resistance have been achieved by lining the carbon steel products, say pipes or tanks, by polymeric materials (polyethylene, PTFE). The lined products offer the strength of steel, chemical resistance and insulation properties of the polymer and the last but not least are cheap.
Cheap ferrous metals have been lately used also for components operating in aggressive media. The required resistance have been achieved by lining the carbon steel products, say pipes or tanks, by polymeric materials (polyethylene, PTFE). The lined products offer the strength of steel, chemical resistance and insulation properties of the polymer and the last but not least are cheap.
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