Braid-reinforced composite hollow fiber membrane

Details Braid-reinforced composite hollow fiber membrane Braid-reinforced composite hollow fiber membrane

2011-03-22

2011-03-22

Fortuna, Ana M (Department: 1777)

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

C210S500230, C210S500360, C210S500270, C210S500420, C428S036400

Reexamination Certificate

active

07909177

ABSTRACT:
A braid-reinforced composite hollow fiber membrane is disclosed. The braid-reinforced composite hollow fiber membrane comprising a reinforcing material of a tubular braid and a polymer resinous thin film coated on the surface of the tubular braid is characterized in that: the tubular braid comprises multifilaments made of monofilaments having a fineness of 0.01 to 0.4 denier, and the peeling strength of the tubular braid and a polymer resinous thin film coated on the surface thereof is 1 to 10 MPa. In the composite hollow fiber membrane, the fineness of the mono filaments constituting the tubular braid of the reinforcing material is small, that is, 0.01 to 0.4 denier, thus the surface area of the tubular braid contacted with the polymer resinous thin film is increased. Thus, the peeling strength of the tubular braid and the polymer resinous thin film coated on the surface thereof is excellent, and at the same time, the initial wetting property of the composite hollow fiber membrane is excellent, that is, 80 to 120%, due to a capillary tube phenomenon or the like.

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