Title:
METHOD FOR RAPID AND ENVIRONMENTALLY FRIENDLY PREPARATION OF DENSE SEPARATION MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2017/012152
Kind Code:
A1
Abstract:
A method for rapid and environmentally friendly preparation of a dense separation membrane, comprising the following steps: fixing a porous base membrane on a rotating membrane carrying table, and bringing the surface of the porous base membrane to a temperature of 60-200°C; and respectively spraying a liquid oligomer and a curing agent solution onto the surface of the porous base membrane by means of atomization to enable the liquid oligomer to undergo an in situ cross-linking reaction on the surface of the porous base membrane in order to obtain a dense and defect-free separation membrane. The method is simple in operation, greatly shortens the membrane formation time, improves the membrane preparation efficiency, and is green and environmentally friendly, universal, and suitable for the large scale preparation of membranes.
Inventors:
ZHANG GUOJUN (CN)
FAN HONGWEI (CN)
FAN HONGWEI (CN)
Application Number:
PCT/CN2015/086468
Publication Date:
January 26, 2017
Filing Date:
August 10, 2015
Export Citation:
Assignee:
UNIV BEIJING TECHNOLOGY (CN)
International Classes:
B01D69/00; B01D67/00; C08J3/24
Foreign References:
| CN103113607A | 2013-05-22 | |||
| CN103706262A | 2014-04-09 | |||
| CN102104156A | 2011-06-22 | |||
| CN1221649A | 1999-07-07 | |||
| CN101912738A | 2010-12-15 |
Other References:
DENY HUIYU ET AL.: "Influence of Monomer Structure on the Surface Morphology and Nanaofiltration Performance of the Composite Membranes", JOURNAL OF FUNCTIONAL MATERIALS, vol. 38, no. 31, December 2007 (2007-12-01), pages 2762 - 2765
Attorney, Agent or Firm:
BEIJING SIHAI TIANDA INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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