Nano composite hollow fiber membrane and method of manufacturing the same

A hollow fiber membrane and nanofiltration technology, which is applied in chemical instruments and methods, membranes, membrane technology, etc., can solve problems such as low strength, achieve high production capacity, excellent strength, and improve cleaning effects
CN101227968AInactive Publication Date: 2008-07-23KOLON IND INC
3 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
KOLON IND INC
Publication Date
2008-07-23
Estimated Expiration
Not applicable ยท inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

Disclosed are a nanofiltration composite hollow fiber membrane and a method of manufacturing the same. The nanofiltration composite hollow fiber membrane includes a reinforcement (1) which is a tubular braid, a polymeric resin thin film (2) coated on the outer surface of the reinforcement (1), and a polyamide active layer (3) formed on the outer surface of the polymeric resin thin film. The present invention has an advantage of an excellent strength and an increase in membrane area relative to an installation area.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a nanofiltration composite hollow fiber membrane (hereinafter referred to as "nanofiltration composite hollow fiber membrane") and a preparation method thereof, and more specifically, to such a nanofiltration composite hollow fiber membrane and a preparation method thereof , the nanofiltration composite hollow fiber membrane has excellent strength and can increase the membrane area because it is reinforced by a tubular braided reinforcement and a polyamide active layer is formed on its surface by interfacial polymerization.

[0002] Hereinafter, in the present invention, a hollow fiber membrane or a separation membrane having an active layer sufficient to effectively filter multivalent ions while allowing passage of monovalent ions is referred to as a nanofiltration hollow fiber membrane or a nanofiltration separation membrane.

[0003] Recently, with emphasis on the environment, there has been an increasing demand for po...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More