Ion-exchange fabric of fluorinated polymer containing...

Details Ion-exchange fabric of fluorinated polymer containing... Ion-exchange fabric of fluorinated polymer containing...

D - Textiles, Paper

06

C

8/93.75

D06C 29/00 (2006.01) C08J 5/22 (2006.01) D06M 11/52 (2006.01)

Patent

CA 1062410

ABSTRACT OF THE DISCLOSURE A woven fibrous ion-exchange fabric is initially formed from fibers as in the form of threads, ropes or yarns which comprise a fluorinated polymer with sulfonyl-containing pendant side chains in the -SO2X form wherein X is fluorine or chlorine. Conversion of the sulfonyl group in the polymer to ionic form causes longitudinal shrinkage of the fiber in the woven fabric and lateral fiber swelling thereby forming a fabric that is essentially impermeable to physical flow of liquid through spaces between the fibers. High strength is realized in the woven fabric without a need for reinforcing material.

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