Title:
POLYTETRAFLUOROETHYLENE HOLLOW FIBER MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2017/080463
Kind Code:
A1
Abstract:
A polytetrafluoroethylene hollow fiber membrane comprises a polytetrafluoroethylene material body, wherein the polytetrafluoroethylene is in fibrous shape with the fiber diameter of greater than 200 nm and less than or equal to 2000 nm; the body has cavities with diameters of 10 to 2000 nm and cavity walls formed in a three-dimensional manner surrounding the cavities; and the cavities are uniformly distributed, with each of the cavities being penetrated through in a three-dimensional manner, wherein the cavities being uniformly distributed means that each of the cavities is uniformly distributed at any unit level volume of porous material; wherein porosity is greater than or equal to 75%, transmittance greater than or equal to 50%, tensile strength greater than or equal to 28N / mm 2, and water pressure resistance greater than or equal to 4kg / cm 2.
Inventors:
YE LEI (CN)
Application Number:
PCT/CN2016/105250
Publication Date:
May 18, 2017
Filing Date:
November 09, 2016
Export Citation:
Assignee:
CHONGQING RUNZE PHARMACEUTICAL (CN)
International Classes:
B01D71/36; B01D69/08
Foreign References:
| CN101530750A | 2009-09-16 | |||
| CN105013344A | 2015-11-04 | |||
| JP2001011224A | 2001-01-16 |
Attorney, Agent or Firm:
CHONGQING HONGXU PATENT AGENGCY CO., LTD. (CN)
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