Super-hydrophilic super-oleophobic metal mesh and preparation method thereof
A metal mesh and superoleophobic technology, applied in the field of metal membranes, can solve the problems of poor anti-fouling membrane regeneration capability of metal membranes, high membrane maintenance and replacement costs, poor metal membrane stability, etc. Maintenance and replacement cost, low cost effect
Pending Publication Date: 2019-05-31
ZHEJIANG JINLONG AUTOMATIC CONTROL EQUIP
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Problems solved by technology
[0008] The technical problem to be solved by the present invention is that the existing metal film and its manufacturing method have relatively complicated manufacturing process and high cost, poor stability of the obtained metal film, poor anti-pollution and film regeneration ability of the metal film, and low cost of film maintenance and replacement. higher question
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[0030] The invention provides a super-hydrophilic and super-oleophobic metal mesh and a preparation method thereof. The preparation process is simple, time-consuming and low-cost. The prepared super-hydrophilic and super-oleophobic metal mesh has high separation efficiency, large membrane flux, and It has strong pollution ability, good chemical stability and mechanical stability, increases service life, and has the advantages of wide adaptability to water quality. The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0031] Such as figure 1 and figure 2 As shown, a kind of superhydrophilic superoleophobic metal net that the present invention provides, metal net 10 comprises the planar net that is arranged on the top layer and the four-layer woven net that is arranged in turn below the planar net, and the outer surface of metal net 10 is provided with The metal oxide layer 20, the outer surface of th...
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Abstract
The invention discloses a super-hydrophilic super-oleophobic metal mesh and a preparation method thereof. The super-hydrophilic super-oleophobic metal mesh comprises a metal net. The metal net comprises a flat net arranged on the top layer and four woven nets, which are sequentially arranged under the flat net. The external surface of the metal net is provided with a metal oxide layer. A hydrophilic oleophobic surface layer is adhered on the outer surface of the metal oxide layer. The external surface of the metal net is provided with the metal oxide layer, the external surface of the metal oxide layer is provided with the hydrophilic oleophobic surface layer, the preparation is simple, the preparation time is short, and the preparation cost is low. The prepared super-hydrophilic super-oleophobic metal mesh has the advantages of high separation efficiency, large membrane flux, strong antifouling performance, high chemical and mechanical stability, prolonged service life, and wide adaptability to water quality. The backwashing regeneration period is prolonged by two times. After backwashing, the membrane flux is completely recovered. The regeneration performance is good. The maintenance cost and replacing cost are both reduced. The economy of the metal mesh is improved.
Description
technical field [0001] The invention relates to the technical field of metal films, in particular to a superhydrophilic and superoleophobic metal mesh and a preparation method thereof. Background technique [0002] At present, most oil fields in my country adopt the secondary oil recovery (or tertiary oil recovery) process, and a large amount of oilfield wastewater is generated after crude oil dehydration. After standardization, high-pressure pumps are used to reinject water underground to increase formation energy, improve recovery efficiency, reduce pollution, and save water resources. Oily wastewater treatment mainly adopts flotation, biological, centrifugal separation, and membrane treatment methods. . [0003] Among them, the membrane treatment method is more and more widely used in the treatment of oilfield produced water because of its advantages of high efficiency, small equipment, low consumption, simple operation, easy realization of automatic control, and easy indu...
Claims
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IPC IPC(8): B01D71/02B01D67/00B01D17/022
Inventor 余金海丁亚塞王玉堃张安将
Owner ZHEJIANG JINLONG AUTOMATIC CONTROL EQUIP