| 摘要 |
<p>Improved fluid contactor elements are formed by molding a composition consisting essentially of a self-reinforcing thermotropic liquid crystalline polymer. In preferred embodiments, the liquid contactor elements are formed by injection molding from compositions consisting essentially of such polymers selected from the group consisting of wholly aromatic polyesters, aromatic aliphatic polyesters, wholly aromatic poly(ester-amides), aromatic-aliphatic poly(ester-amides), aromatic polyazomethines, aromatic polyester carbonates, and mixtures of the foregoing. These materials have been found to provide a combination of high strength, high rigidity, high contact area, high specific volume, relatively low unit weight, and high resistance to corrosive chemicals and organic solvents, even at elevated temperatures and pressures. In a preferred embodiment the improved fluid contactor elements of the present invention are free of reinforcing agents and filler materials. The contactor elements provided herein have been found to be superior to similar elements molded of ceramics or prior art polymeric compositions for many chemical process applications.</p> |
