Hollow fiber membrane, hollow fiber membrane stack, and filtration module
AssigneeSumitomo Electric Industries, Ltd.
InventorsHiroki MIYATA, Kazuya TOKUDA
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Abstract
A hollow fiber membrane according to an aspect of the present disclosure comprises polytetrafluoroethylene or modified polytetrafluoroethylene as a main component, wherein the hollow fiber membrane has: an average outer diameter of 2.10 mm or less and an average thickness of 0.60 mm or less; an isopropanol bubble point of 90 kPa or more; a degree of orientation in a longitudinal direction measured by wide-angle X-ray scattering from 72% to 85%; and an amount of heat of fusion at an endothermic peak in the vicinity of 328° C. from 10.0 J/g to 13.4 J/g.
Claims3
A hollow fiber membrane comprising polytetrafluoroethylene or modified polytetrafluoroethylene as a main component, wherein the hollow fiber membrane has:
- an average outer diameter of 2.10 mm or less and an average thickness of 0.60 mm or less;
- an isopropanol bubble point of 90 kPa or more;
- a degree of orientation in a longitudinal direction measured by wide-angle X-ray scattering from 72% to 85%;
- and
- an amount of heat of fusion at an endothermic peak in the vicinity of 328° C. from 10.0 J/g to 13.4 J/g.
Dependencies are inferred from the claim text.