CN108771885A - A kind of preparation method of polytetrafluorethylecoatings coatings water-oil separating filter membrane - Google Patents
A kind of preparation method of polytetrafluorethylecoatings coatings water-oil separating filter membrane Download PDFInfo
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- CN108771885A CN108771885A CN201810531522.2A CN201810531522A CN108771885A CN 108771885 A CN108771885 A CN 108771885A CN 201810531522 A CN201810531522 A CN 201810531522A CN 108771885 A CN108771885 A CN 108771885A
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- preparation
- multilayer metal
- metal sintering
- water
- oil separating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/08—Thickening liquid suspensions by filtration
- B01D17/085—Thickening liquid suspensions by filtration with membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0079—Manufacture of membranes comprising organic and inorganic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/36—Polytetrafluoroethene
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- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
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- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Filtering Materials (AREA)
Abstract
The present invention provides provide a kind of preparation method of polytetrafluorethylecoatings coatings water-oil separating filter membrane.The preparation method is to provide a multilayer metal sintering net first；Then it uses dilute sulfuric acid to impregnate multilayer metal sintering net to derust；Then multilayer metal sintering net and drying are cleaned；It is online that ptfe emulsion is then sprayed on multilayer metal sintering using compressed air；Finally the filter screen after spraying is placed in drying box and is dried, polytetrafluorethylecoatings coatings water-oil separating filter membrane is obtained.The present invention uses multilayer metal sintering net as substrate, and mechanical strength is higher, can be adapted for the water-oil separating of big quantity of fluid.In addition, polytetrafluorethylecoatings coatings area of the present invention is larger, water-oil separating efficiency is higher, has high industrial utilization.
Description
Technical field
The invention belongs to field of functional materials, are related to a kind of preparation method of water-oil separating filter membrane, more particularly to one
The preparation method of kind polytetrafluorethylecoatings coatings water-oil separating filter membrane.
Background technology
In recent years, the stable state of the pollution threat ecosystem brought is leaked by Crude Oil at Sea, is contained in oilfield exploitation production fluid
Water increase also becomes an important factor for influencing oil exploitation economic benefit.Therefore, the isolation technics of oil mixing with water liquid is gradual
As research hotspot.Traditional oily water separation technique is mainly including the use of the difference of the physical properties such as water-oil phase density, conductivity
Gravitational settling, centrifugation, electricity different and implement take off the methods of separation and biodegradation.But these method costs are higher, efficiency
It is relatively low, neither can effectively stop contamination, it is also difficult to accomplish the high efficiente callback of oil.Compared to above-mentioned oil mixing with water liquid
Processing method, the filter membrane with special wetability preferably can be separated by filtration and recycle oil phase in oil water mixture with
Water phase, manufacturing method is more, more efficient.
Polytetrafluoroethylene (PTFE) becomes the good material of manufacture super hydrophobic surface with its extremely low surface energy.Simultaneously because it is good
Chemical stability, polytetrafluoroethylene material can keep its function in harsh environment.It is existing in water-oil separating field
Using the super-hydrophobicity of polytetrafluoroethylene material realize the filter membrane of water-oil separating be merely by polytetrafluoroethylene (PTFE) as membrane body or
Using single-layer metal net as matrix, the mechanical strength of film is poor to be dfficult to apply in real industrial environment.
Invention content
The purpose of the present invention is to provide a kind of preparation methods of polytetrafluorethylecoatings coatings water-oil separating filter membrane.
The above-mentioned technical purpose of the present invention is achieved through the following technical solutions：
The present invention provides a kind of preparation method of polytetrafluorethylecoatings coatings three-dimensional grid water-oil separating filter membrane, the filter membranes
It is made of multilayer metal sintering net matrix and polytetrafluorethylecoatings coatings, the preparation method includes the following steps：
S1., one multilayer metal sintering net is provided；
S2. it uses dilute sulfuric acid to impregnate multilayer metal sintering net to derust；
S3. multilayer metal sintering net and drying are cleaned；
S4. it is online ptfe emulsion to be sprayed on multilayer metal sintering using compressed air；
S5. the filter screen after spraying is placed in drying box and is dried.
Preferably, multilayer metal sintering net materials are stainless steel, copper, aluminium in the step S1；Thickness is 1 ~ 100mm；Essence
Degree is 10 ~ 100 μm.
Preferably, dilution heat of sulfuric acid pH value is 2 ~ 3 in the step S2, and soaking time is 1 ~ 30 second.
Preferably, in the step S4, ptfe emulsion configuration step is：
S41. configuration contains polytetrafluoroethylene (PTFE)（Mass fraction 30%）, polyvinyl acetate（Mass fraction 10%）, polyvinyl alcohol（Quality
Score 8%）, neopelex（Mass fraction 2%）And distilled water（Mass fraction 50%）Lotion；
S42. stirring lotion 30 minutes.
Preferably, in the step S4, compressed air pressure is 0.5 ~ 1MPa.
Preferably, in the step S5, drying box temperature is 300 ~ 400 DEG C, and drying time is 20 ~ 40 minutes.
Compared with the existing technology, the present invention has the advantage that and effect：
The present invention uses multilayer metal sintering net as substrate, and mechanical strength is higher, can be adapted for the grease point of big quantity of fluid
From.Polytetrafluorethylecoatings coatings area is big simultaneously, and water-oil separating efficiency is higher, and application prospect is good.
Description of the drawings
Fig. 1 is shown as the technological process of a kind of polytetrafluorethylecoatings coatings water-oil separating filter membrane of the present invention and its manufacturing method
Figure.
Fig. 2 is shown as step 1 of the present invention）The structural schematic diagram of middle presentation.
Fig. 3 is shown as step 2 of the present invention）The structural schematic diagram of middle presentation.
Fig. 4 is shown as step 3 of the present invention）The structural schematic diagram of middle presentation.
Fig. 5 is shown as step 4 of the present invention）The structural schematic diagram of middle presentation.
Fig. 6 is shown as step 5 of the present invention）The structural schematic diagram of middle presentation.
Component label instructions
。
Specific implementation mode
Further illustrated the present invention below in conjunction with specific embodiments and the drawings, but embodiment the present invention is not done it is any
The restriction of form.Unless stated otherwise, the present invention uses reagent, method and apparatus is the art conventional reagent, methods
And equipment.
Unless stated otherwise, agents useful for same and material of the present invention are purchased in market.
Embodiment 1
Illustrate that embodiments of the present invention, those skilled in the art can be taken off by this specification below by way of specific specific example
The content of dew understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific embodiment parties
Formula is embodied or practiced, and the various details in this specification can also be based on different viewpoints and application, without departing from this hair
Various modifications or alterations are carried out under bright spirit.
Attached drawing 1 is please referred to Fig. 6.It should be noted that the diagram provided in the present embodiment only illustrates in a schematic way
The basic conception of the present invention, package count when only display is with related component in the present invention rather than according to actual implementation in schema then
Mesh, shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can be a kind of random change, and its
Assembly layout kenel may also be increasingly complex.
As shown in Figure 1, a kind of silicon nano hole structure of present invention offer and preparation method thereof, the production method includes at least
Following steps：
S1 provides a multilayer metal sintering net（It is commercially available）；
S2 impregnates multilayer metal sintering net using dilute sulfuric acid and derusts；
S3 cleans multilayer metal sintering net and drying；
It is online to be sprayed on multilayer metal sintering by S4 using compressed air for ptfe emulsion；
Filter screen after spraying is placed in drying box and dries by S5；
A kind of method of metal micro-holes array filter membrane of the present invention is described in detail with reference to specific attached drawing.
Step S1 is first carried out, a multilayer metal sintering net 1 is provided, material is stainless steel, copper, aluminium；Thickness can be 1 ~
100mm；Precision can be 10 ~ 100 μm.In the present embodiment, multilayer metal sintering net materials select stainless steel, metal foil thickness choosing
Select 10mm, 50 μm of accuracy selection.
Then step S2 is executed, the multilayer metal sintering net 1 is immersed in dilution heat of sulfuric acid and is derusted, is then placed in
Rinsing to rinsing liquid is in neutrality in ionized water, the filter screen 2 after being derusted, and dilution heat of sulfuric acid pH value can be 2 ~ 3；When immersion
Between can be 1 ~ 30 second.In the present embodiment, dilution heat of sulfuric acid pH value is selected as 2.5；Soaking time can be selected as 10 seconds.
Then execute step S3, the filter screen 2 after the derusting is taken up in order of priority be immersed in acetone, absolute ethyl alcohol and go from
It is cleaned by ultrasonic 5 minutes in sub- water, is placed in drying in nitrogen stream, obtains clean filter screen 3.
Step S4 is then executed, ptfe emulsion 4 is sprayed on to the filter screen 3 of the cleaning using compressed air
On, it can be 0.5 ~ 1Mpa to obtain the spray coated 5 compressed air pressure of filter membrane of ptfe emulsion；Ptfe emulsion 4 is made
It is for step：
Configuration contains polytetrafluoroethylene (PTFE)（Mass fraction 30%）, polyvinyl acetate（Mass fraction 10%）, polyvinyl alcohol（Mass fraction
8%）, neopelex（Mass fraction 2%）And distilled water（Mass fraction 50%）Lotion, be sufficiently stirred lotion 30
Minute.In the present embodiment, compressed air pressure is selected as 0.6MPa.
Step S5 is finally executed, the filter membrane 5 that the ptfe emulsion coats is placed in drying box and is dried, is obtained
Polytetrafluorethylecoatings coatings water-oil separating filter membrane 6, drying box temperature can be 300 ~ 400 DEG C, and drying time can be 20 ~ 40 points
Clock.In the present embodiment, drying box temperature is selected as 500 DEG C, and drying time is selected as 30 minutes.
In conclusion a kind of polytetrafluorethylecoatings coatings three-dimensional grid water-oil separating filter membrane provided by the invention and its manufacture
Method, the present invention use multilayer metal sintering net as substrate, and mechanical strength is higher, can be adapted for the grease point of big quantity of fluid
From.In addition, polytetrafluorethylecoatings coatings area of the present invention is larger, water-oil separating efficiency is higher.So the present invention effectively overcomes now
There is the various shortcoming in technology and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should by the present invention claim be covered.
Claims (6)
1. a kind of preparation method of polytetrafluorethylecoatings coatings three-dimensional grid water-oil separating filter membrane, which is characterized in that the filtering
Film is made of multilayer metal sintering net matrix and polytetrafluorethylecoatings coatings；The preparation method includes the following steps：
S1., one multilayer metal sintering net is provided；
S2. it uses dilute sulfuric acid to impregnate multilayer metal sintering net to derust；
S3. multilayer metal sintering net and drying are cleaned；
S4. it is online ptfe emulsion to be sprayed on multilayer metal sintering using compressed air；
S5. the filter screen after spraying is placed in drying box and is dried.
2. preparation method according to claim 1, which is characterized in that multilayer metal sintering net materials are not in the step S1
Become rusty steel, copper, aluminium；Thickness is 1 ~ 100mm；Precision is 10 ~ 100 μm.
3. preparation method according to claim 1, which is characterized in that dilution heat of sulfuric acid pH value is 2 ~ 3 in the step S2, leaching
It is 1 ~ 30 second to steep the time.
4. preparation method according to claim 1, which is characterized in that in the step S4, ptfe emulsion configuration step
Suddenly it is：
S41. configuration contains polytetrafluoroethylene (PTFE)（Mass fraction 30%）, polyvinyl acetate（Mass fraction 10%）, polyvinyl alcohol（Quality
Score 8%）, neopelex（Mass fraction 2%）And distilled water（Mass fraction 50%）Lotion；
S42. stirring lotion 30 minutes.
5. preparation method according to claim 1, which is characterized in that in the step S4, compressed air pressure be 0.5 ~
1MPa。
6. preparation method according to claim 1, which is characterized in that in the step S5, drying box temperature is 300 ~ 400
DEG C, drying time is 20 ~ 40 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810531522.2A CN108771885A (en) | 2018-05-29 | 2018-05-29 | A kind of preparation method of polytetrafluorethylecoatings coatings water-oil separating filter membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810531522.2A CN108771885A (en) | 2018-05-29 | 2018-05-29 | A kind of preparation method of polytetrafluorethylecoatings coatings water-oil separating filter membrane |
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| CN108771885A true CN108771885A (en) | 2018-11-09 |
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| CN201810531522.2A Pending CN108771885A (en) | 2018-05-29 | 2018-05-29 | A kind of preparation method of polytetrafluorethylecoatings coatings water-oil separating filter membrane |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437673A (en) * | 2020-04-02 | 2020-07-24 | 乾亨贸易(杭州)有限公司 | Sintered plate repair system |
| CN115196717A (en) * | 2022-08-17 | 2022-10-18 | 中国石油化工股份有限公司 | Preparation and oil-water separation device of hydrophobic oleophylic material |
| CN115253705A (en) * | 2021-04-30 | 2022-11-01 | 苏州永沁泉智能设备有限公司 | Separation membrane with functional interface and preparation method and application thereof |
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| CN1907549A (en) * | 2006-07-26 | 2007-02-07 | 新乡市胜达过滤净化技术有限公司 | Stainless steel net sintering polytetrafluoroethylene film and process for making same |
| CN101869789A (en) * | 2009-04-27 | 2010-10-27 | 上海科格思过滤材料有限公司 | Polyfluortetraethylene coating film filter material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437673A (en) * | 2020-04-02 | 2020-07-24 | 乾亨贸易(杭州)有限公司 | Sintered plate repair system |
| CN111437673B (en) * | 2020-04-02 | 2021-12-21 | 乾亨贸易(杭州)有限公司 | Sintered plate repair system |
| CN115253705A (en) * | 2021-04-30 | 2022-11-01 | 苏州永沁泉智能设备有限公司 | Separation membrane with functional interface and preparation method and application thereof |
| CN115253705B (en) * | 2021-04-30 | 2023-11-03 | 苏州永沁泉智能设备有限公司 | Separation membrane with functional interface and preparation method and application thereof |
| CN115196717A (en) * | 2022-08-17 | 2022-10-18 | 中国石油化工股份有限公司 | Preparation and oil-water separation device of hydrophobic oleophylic material |
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Application publication date: 20181109 |