Asbestos-free microporous diaphragms for chlor:alkali cells - made from mixt. of non-modified PTFE and highly functionalised PTFE as hydrophilising agent

Microporous, absestos-free permeable diaphragm for electrolysis cells, esp. chloralkali cells, made from unmodified PTFE and 1.5-12.5 wt% (w.r.t. matrix) of a highly functionalised PTFE as hydrophilising agent of largely identical polymer type. USE/ADVANTAGE - The diaphragms have a high resistance t...

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Hauptverfasser: BRINK, HANS-JUERGEN., O-8122 RADEBEUL, DE, KOELLING, HARTMUTH., O-4500 DESSAU, DE, HORX, MANFRED., O-4440 WOLFEN, DE, HERRMANN, KORNELIA, O-4400 BITTERFELD, DE, KLATT, BRUNO, HERRMANN, REIMUND, O-8122 RADEBEUL, DE, LUNKWITZ, KLAUS., O-8027 DRESDEN, DE
Format: Patent
Sprache:eng ; ger
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Zusammenfassung:Microporous, absestos-free permeable diaphragm for electrolysis cells, esp. chloralkali cells, made from unmodified PTFE and 1.5-12.5 wt% (w.r.t. matrix) of a highly functionalised PTFE as hydrophilising agent of largely identical polymer type. USE/ADVANTAGE - The diaphragms have a high resistance to rediffusion and migration of OH ions, a low voltage drop over the diaphragm and good strength and flexibility, are easy to make by a simplified rolling or pressing process, and give good results and long service life in chloralkali cells.