CN109603205A - A kind of preparation method of the stainless steel filtering net for water-oil separating - Google Patents
A kind of preparation method of the stainless steel filtering net for water-oil separating Download PDFInfo
- Publication number
- CN109603205A CN109603205A CN201811278946.9A CN201811278946A CN109603205A CN 109603205 A CN109603205 A CN 109603205A CN 201811278946 A CN201811278946 A CN 201811278946A CN 109603205 A CN109603205 A CN 109603205A
- Authority
- CN
- China
- Prior art keywords
- water
- stainless steel
- filtering net
- steel filtering
- oil separating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 59
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 59
- 239000010935 stainless steel Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 30
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 21
- 229910021642 ultra pure water Inorganic materials 0.000 claims abstract description 14
- 239000012498 ultrapure water Substances 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 10
- 235000019441 ethanol Nutrition 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 28
- 125000002091 cationic group Chemical group 0.000 claims description 21
- 239000012459 cleaning agent Substances 0.000 claims description 14
- 239000000377 silicon dioxide Substances 0.000 claims description 14
- 229920002472 Starch Polymers 0.000 claims description 12
- 239000008107 starch Substances 0.000 claims description 12
- 235000019698 starch Nutrition 0.000 claims description 12
- 229920002401 polyacrylamide Polymers 0.000 claims description 10
- 238000002604 ultrasonography Methods 0.000 claims description 10
- -1 alkyl glycosides Chemical class 0.000 claims description 9
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 9
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 9
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 9
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 8
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 8
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 7
- 239000004202 carbamide Substances 0.000 claims description 7
- 235000019387 fatty acid methyl ester Nutrition 0.000 claims description 7
- 229930182470 glycoside Natural products 0.000 claims description 7
- 238000007654 immersion Methods 0.000 claims description 7
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 7
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- 238000006266 etherification reaction Methods 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- 239000010842 industrial wastewater Substances 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 18
- 239000000758 substrate Substances 0.000 description 14
- 239000008367 deionised water Substances 0.000 description 11
- 229910021641 deionized water Inorganic materials 0.000 description 11
- 238000000926 separation method Methods 0.000 description 9
- 229960004756 ethanol Drugs 0.000 description 7
- 235000019198 oils Nutrition 0.000 description 7
- 239000004744 fabric Substances 0.000 description 6
- 150000002191 fatty alcohols Chemical class 0.000 description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 description 6
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 238000007781 pre-processing Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical class CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 229960000935 dehydrated alcohol Drugs 0.000 description 2
- 229920001477 hydrophilic polymer Polymers 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009300 dissolved air flotation Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a kind of preparation methods of stainless steel filtering net for water-oil separating, a kind of stainless steel filtering net for water-oil separating can be prepared using this method, it is then obtained by drying especially by the stainless steel filtering net that the coating for being used for water-oil separating is applied to cleaned dose, ultrapure water and ethyl alcohol cleaning.A kind of stainless steel filtering net for water-oil separating has been prepared in the method through the invention, and preparation process is simple, can be used for large-scale industrial production；Raw material needed for preparation process is bulk chemical, it is cheap and easy to get, and it can be recycled by way of adding raw material using rear remaining coating, reduce the discharge of industrial wastewater, energy conservation and environmental protection, the stainless steel filtering net being prepared has excellent super hydrophilic and superoleophobic performance, can effectively retain oily matter, and rejection is 99% or more.
Description
Technical field
The invention belongs to surface of stainless steel technical field of modification.In particular it relates to it is a kind of for water-oil separating not
The preparation method of rust steel strainer.
Background technique
Marine petroleum exploitation or land secondary oil recovery be unable to do without oily water separation technique, currently used oil-water separation method
Mainly there are Gravity separate, centrifugal separation, electrically separated, adsorbing separation, dissolved air flotation, however these methods all have energy consumption
Greatly, high disadvantage is invested.
Stainless steel filtering net is a kind of very common separation material, has durable, acid-alkali-corrosive-resisting Optimality
Can, stainless steel filtering net is commonly used for the solid solid separation process such as soybean milk grinding, flour screening in life, is commonly used for mine in industry
The separation of solid and liquid process such as industry, petroleum, chemical industry, food, medicine, machine-building.Patent CN102029079A, which discloses one kind, to be had
The oil-water separating net of underwater superoleophobic property, which realizes the purpose of water-oil separating, but prepares in this separate mesh
Cheng Zhongwei obtains needing with the hydrogel clad that polymer monomer cross-linked polymeric is formed on the twine of fabric web light-initiated anti-
It answers, preparation process is complicated, is not suitable for large-scale production.It is superoleophobic that patent CN103316507A discloses super-hydrophilic and underwater
Oil-water separation mesh film and its preparation method and application reaches water-oil separating although this method also may be implemented underwater superoleophobic
Purpose, however raw material type needed for preparing the oil-water separation mesh film is various, it is especially desirable to nitric acid, hydrochloric acid, sodium hydroxide etc. are strong
Sour strong base catalyst obtains Nano sol, generates a large amount of waste liquor contamination environment, does not meet the requirement of current green chemical industry.Therefore, it needs
Find a kind of simple and convenient, stainless steel filtering net for water-oil separating of the requirement suitable for current green chemical industry.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the defect of the prior art and deficiencies, provide a kind of for grease point
From stainless steel filtering net preparation method.Due to the surface nature of stainless steel, simple stainless steel filtering net cannot achieve filtering point
Requirement from oily matter and water, therefore the present invention is suitably modified by carrying out stainless steel filtering net surface, so that modified
Stainless steel filtering net realizes super hydrophilic/underwater superoleophobic performance, and then reaches and water-oil separating can be completed only by filtering
Target.
The object of the present invention is to provide a kind of coating for water-oil separating.
Another object of the present invention is to provide a kind of preparation method of stainless steel filtering net for water-oil separating.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of coating for water-oil separating, the coating are prepared by each component of following weight percent: polyethylene
Pyrrolidones 4%~5%, cationic polyacrylamide 1.2%~1.8%, cationic starch 0.5%~1.5%, ethoxy
Cellulose 0.5%~1%, nano silica 0.5%~2%, surplus are water.
The present invention can be improved the surface energy on stainless steel filtering net surface by the way that a variety of hydrophilic polymers are added, and realize super close
Water, while changing screen surface pattern using nano silica, reach underwater superoleophobic performance, and then realize grease point
From.
Preferably, the hydrophilic polymer be polyvinylpyrrolidone, cationic polyacrylamide, cationic starch,
Hydroxyethyl cellulose.
Preferably, the size of the strainer filter opening is 200~300 mesh.
Preferably, it is 29~32 that the average molecular weight of the polyvinylpyrrolidone, which is 58000, K value,.
Preferably, the matter average molecular weight of the cationic-type polyacrylamide is 800~12,000,000.
Preferably, the cationic starch is cationic etherification starch, viscosity (6%95 DEG C): 460~1200 mPa*s,
Whiteness >=88%.
Preferably, the hydroxyethyl cellulose is 250~450mPa*s in 25 DEG C of viscosity.
Preferably, the nano silica is the silica of hydrophobically modified.
It is highly preferred that the average-size of the nano silica is 20~50nm.
A kind of preparation method of stainless steel filtering net for water-oil separating is also claimed in the present invention, comprising the following steps:
S1. stainless steel filtering net is pre-processed；
S2. above-mentioned pretreated stainless steel filtering net is soaked in 5~10min of immersion in above-mentioned coating, dried, repeated
Above-mentioned steps 2~4 times to obtain the final product.
Preferably, in step S1, the preprocess method be strainer is placed in 20 DEG C~40 DEG C cleaning agents ultrasound 15~
20min is subsequently placed in 15~20min of ultrasound in 15 DEG C~40 DEG C ethyl alcohol with 5~10min of ultrapure water, with super after taking-up
It is dried for standby under the conditions of 60 DEG C of pure water rinsing.
Preferably, the cleaning agent is prepared by each component of following mass fraction: fatty alcohol polyoxyethylene ether AEO-
72~4w/%, 1~3w/% of urea, fatty acid methyl ester ethoxylate 3~5w/% of sulfonate, sodium tripolyphosphate 1~
2w/%, 3~4w/% of alkyl glycosides, surplus are water.
Preferably, the ethyl alcohol is the industrial alcohol that mass fraction is 95%.
Preferably, in step S2, the drying condition is 120 DEG C of 30~60min of drying.
In addition, the stainless steel filtering net for water-oil separating that the above method is prepared is also claimed in the present invention.
A kind of stainless steel filtering net for water-oil separating has been prepared by creatively labour in inventor, passes through respectively
Water contact angle test, the test of underwater droplets contact angle, the test of underwater oil droplet roll angle and water-oil separating test discovery are crossed, is passed through
The stainless steel filtering net for water-oil separating that the method for the invention obtains has excellent super hydrophilic and superoleophobic performance, right
The rejection of oily matter meets the requirement for effectively carrying out water-oil separating up to 99.8%.
Compared with prior art, the invention has the following advantages:
A kind of stainless steel filtering net for water-oil separating, preparation process letter has been prepared in the method through the invention
It is single, it can be used for large-scale industrial production；Raw material needed for preparation process is bulk chemical, cheap and easy to get, and is made
It can be recycled by way of adding raw material with rear remaining coating, reduce the discharge of industrial wastewater, energy conservation and environmental protection,
The stainless steel filtering net being prepared has excellent super hydrophilic and superoleophobic performance, can effectively retain oily matter, and cut
Stay rate 99% or more.
Specific embodiment
The present invention is further illustrated below in conjunction with specific embodiment, but embodiment does not do any form to the present invention
Restriction.Unless stated otherwise, the present invention uses reagent, method and apparatus for the art conventional reagent, method and are set
It is standby.
Unless stated otherwise, following embodiment agents useful for same and material are commercially available.
Embodiment 1
A kind of preparation method of the stainless steel filtering net for water-oil separating, preparation method include the following steps:
1, it takes 3cm × 7cm stainless steel filtering net to carry out following pretreatment: cloth being placed in cleaning agent first, in 20 DEG C of items
Ultrasound 15min under part, then with ultrapure water 5min, then substrate is placed in 15 DEG C of ethyl alcohol, ultrasonic 15min, it takes out with super
Pure water rinsing, and be dried for standby under the conditions of being placed in 60 DEG C.Wherein, the cleaning agent by following mass fraction each component system
It is standby to form: fatty alcohol polyoxyethylene ether AEO-7:2w/%, urea: 1w/%, fatty acid methyl ester ethoxylate sulfonate
FMES:3w/%, sodium tripolyphosphate: 1w/%, APG alkyl glycosides: 3w/%, deionized water 90w/%.
2, after pre-processing, by substrate immersion coating aqueous solution, 5min is impregnated.Wherein, the coating is by following weight percent
Several each components are prepared: polyvinylpyrrolidone 4%, cationic polyacrylamide 1.2%, cationic starch 0.5%,
Hydroxyethyl cellulose 0.5%, nano silica 0.5%, deionized water 93.3%；
The coating the preparation method comprises the following steps: polyvinylpyrrolidone, cationic polyacrylamide be directly added into according to proportion
Into the deionized water of corrresponding quality, stirring and dissolving.Then, in the case where electric stirring, the cation of corresponding number forms sediment
Powder, hydroxyethyl cellulose are added slowly in solution, stirring.Finally, solution is placed under ultrasound condition, it is slowly added to nanometer
Silica, ultrasonic disperse 30min；It further takes out and coating solution can be obtained using electric blender stirring 1h.
Stainless steel filtering net after film is hung over into holding 120 DEG C of drying 30min of temperature in constant-temperature vacuum baking oven, takes out base
Material repeats above-mentioned coating process 2 times, the stainless steel filtering net for water-oil separating can be obtained.
Embodiment 2
A kind of preparation method of the stainless steel filtering net for water-oil separating, preparation method include the following steps:
1, it takes 3cm × 7cm stainless steel filtering net to carry out following pretreatment: cloth being placed in cleaning agent first, in 25 DEG C of items
Ultrasound 15min under part, then with ultrapure water 7min, then substrate is placed in 20 DEG C of ethyl alcohol, ultrasonic 20min, it takes out with super
Pure water rinsing, and be dried for standby under the conditions of being placed in 60 DEG C.Wherein, the cleaning agent by following mass fraction each component system
It is standby to form: fatty alcohol polyoxyethylene ether AEO-7:2.5w/%, urea: 1.5w/%, fatty acid methyl ester ethoxylate sulfonate
FMES:3.5w/%, sodium tripolyphosphate: 1.5 w/%, APG alkyl glycosides: 3w/%, deionized water 88w/%.
2, after pre-processing, by substrate immersion coating aqueous solution, 7min is impregnated.Wherein, the coating is by following weight percent
Several each components are prepared: polyvinylpyrrolidone 4%, cationic polyacrylamide 1.5%, cationic starch 0.8%,
Hydroxyethyl cellulose 0.8%, nano silica 1%, deionized water 91.9%；Stainless steel filtering net after film is hung over into perseverance
120 DEG C of drying 40min of temperature are kept in warm vacuum drying oven, take out substrate, are repeated above-mentioned coating process 2 times, be can be obtained and be used for
The stainless steel filtering net of water-oil separating.
Embodiment 3
A kind of preparation method of the stainless steel filtering net for water-oil separating, preparation method include the following steps:
1, it takes 3cm × 7cm stainless steel filtering net to carry out following pretreatment: cloth being placed in cleaning agent first, in 30 DEG C of items
Ultrasound 18min under part, then with ultrapure water 7min, then substrate is placed in 25 DEG C of ethyl alcohol, ultrasonic 20min is used after taking-up
Ultrapure water, and be dried for standby under the conditions of being placed in 60 DEG C.Wherein, the cleaning agent by following mass fraction each component
It is prepared: fatty alcohol polyoxyethylene ether AEO-7:2.5w/%, urea: 1.5w/%, fatty acid methyl ester ethoxylate sulfonic acid
Salt FMES:3.5w/%, sodium tripolyphosphate: 1.5 w/%, APG alkyl glycosides: 3w/%, deionized water 88w/%.
2, after pre-processing, by substrate immersion coating aqueous solution, 8min is impregnated.Wherein, the coating is by following weight percent
Several each components are prepared: polyvinylpyrrolidone 4.5%, cationic polyacrylamide 1.2%, cationic starch 1%,
Hydroxyethyl cellulose 0.8%, nano silica 1.5%, deionized water 91%；Stainless steel filtering net after film is hung over into perseverance
120 DEG C of drying 45min of temperature are kept in warm vacuum drying oven, take out substrate, are repeated above-mentioned coating process 3 times, be can be obtained and be used for
The stainless steel filtering net of water-oil separating.
Embodiment 4
A kind of preparation method of the stainless steel filtering net for water-oil separating, preparation method include the following steps:
1, it takes 3cm × 7cm stainless steel filtering net to carry out following pretreatment: cloth being placed in cleaning agent first, in 35 DEG C of items
Ultrasound 20min under part, then with ultrapure water 8min, then substrate is placed in 30 DEG C of ethyl alcohol, ultrasonic 18min is used after taking-up
Ultrapure water is simultaneously dried for standby under the conditions of being placed in 60 DEG C.Wherein, the cleaning agent by following mass fraction each component system
It is standby to form: fatty alcohol polyoxyethylene ether AEO-7:3w/%, urea: 2w/%, fatty acid methyl ester ethoxylate sulfonate
FMES:4.5w/%, sodium tripolyphosphate: 1.5w/%, APG alkyl glycosides: 3.5w/%, deionized water 85.5w/%.
2, after pre-processing, by substrate immersion coating aqueous solution, 8min is impregnated.Wherein, the coating is by following weight percent
Several each components are prepared: polyvinylpyrrolidone 4.5%, cationic polyacrylamide 1.5%, cationic starch
1.3%, hydroxyethyl cellulose 1%, nano silica 2%, deionized water 89.7%；Stainless steel filtering net after film is hung
120 DEG C of drying 50min of temperature are kept in constant-temperature vacuum baking oven；Substrate is taken out, repeats above-mentioned coating process 3 times, can be obtained
Stainless steel filtering net for water-oil separating.
Embodiment 5
A kind of preparation method of the stainless steel filtering net for water-oil separating, preparation method include the following steps:
1, it takes 3cm × 7cm stainless steel filtering net to carry out following pretreatment: cloth being placed in cleaning agent first, in 40 DEG C of items
Ultrasound 20min under part, then with ultrapure water 10min, then substrate is placed in 40 DEG C of ethyl alcohol, ultrasonic 15min, after taking-up
With ultrapure water, and it is dried for standby under the conditions of being placed in 60 DEG C.Wherein, the cleaning agent by following mass fraction each group
Divide and be prepared: fatty alcohol polyoxyethylene ether AEO-7:4w/%, urea: 3w/%, fatty acid methyl ester ethoxylate sulfonate
FMES:5w/%, sodium tripolyphosphate: 2w/%, APG alkyl glycosides: 4w/%, deionized water 82w/%.
2, after pre-processing, by substrate immersion coating aqueous solution, 10min is impregnated.The coating is by following weight percent
Each component is prepared: polyvinylpyrrolidone 5%, cationic polyacrylamide 1.8%, cationic starch 1.5%, hydroxyl second
Base cellulose 1%, nano silica 2%, deionized water 88.7%；Stainless steel filtering net after film is hung over into constant-temperature vacuum
120 DEG C of drying 60min of temperature are kept in baking oven, take out substrate, are repeated above-mentioned coating process 4 times, be can be obtained for grease point
From stainless steel filtering net.
Performance test
One, method
The stainless steel filtering net that Examples 1 to 5 is prepared carries out water contact angle test, underwater droplets contact angle respectively
Test, the test of underwater oil droplet roll angle and water-oil separating test.
Test method is respectively as follows:
Water contact angle test: it is tested using optical contact angle tester；By strainer with double faced adhesive tape be fixed on glass slide with
It determines planar horizontal, water droplet is then dropped into screen surface, then measure water-strainer contact angle with video camera.
Underwater droplets contact angle test: it is tested using optical contact angle tester；After strainer dehydrated alcohol pre-invasion
It is placed in ultrapure water and thoroughly replaces, then be fixed on glass slide with double-sided adhesive, be then placed on cubic container, later by model
Oily dichloroethanes instills the screen surface in water, uses the contact angle of video camera measurement dichloroethanes mould oil；
Underwater oil droplet roll angle test: it is tested using optical contact angle tester；After strainer dehydrated alcohol pre-invasion
It is placed in ultrapure water and thoroughly replaces, then be fixed on glass slide with double-sided adhesive, be then placed on cubic container；Later by model
Oily dichloroethanes instills the screen surface in water, then slowly rotation load sample platform records this until oil droplet starts to roll in film surface
When sample stage rotational angle.
Water-oil separating test: strainer is clipped among two glass tubes, water is dyed into red with red ink, with carbon tetrachloride
1:1 is mixed by volume, and magnetic agitation is uniform, and oil-water mixture is poured into film from upper orifice.Due to water can penetrate it is hydrophilic
Strainer and carbon tetrachloride can not penetrate, therefore realize water-oil separating.The carbon tetrachloride quality of strainer top retention is finally weighed,
The rejection of oily matter can be obtained.
Two, result
The result of items test is as shown in the following table 1~4.
The water contact angle test result for the stainless steel filtering net that 1 Examples 1 to 5 of table is prepared
The underwater droplets contact angle test result for the stainless steel filtering net that 2 Examples 1 to 5 of table is prepared
The underwater oil droplet roll angle test result for the stainless steel filtering net that 3 Examples 1 to 5 of table is prepared
The water-oil separating test result for the stainless steel filtering net that 4 Examples 1 to 5 of table is prepared
From table 1~4 as can be seen that there is excellent super hydrophilicity by the stainless steel filtering net that this method is prepared,
Meanwhile from underwater droplets contact angle and roll angle test it can be seen that the stainless steel filtering net being prepared by this method also has
There is excellent superoleophobic performance, shows the stainless steel filtering net being prepared by this method to oiliness by water-oil separating experiment
The rejection of substance meets the requirement for effectively carrying out water-oil separating 99% or more.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by change, modification, substitution, combination, letter
Change, should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of coating for water-oil separating, which is characterized in that be prepared by each component of following weight percent: poly- second
Alkene pyrrolidone 4%~5%, cationic polyacrylamide 1.2%~1.8%, cationic starch 0.5%~1.5%, hydroxyethyl cellulose
0.5%~1%, nano silica 0.5%~2%, surplus is water.
2. coating according to claim 1, which is characterized in that the average molecular weight of the polyvinylpyrrolidone is 58000,
K value is 29~32.
3. coating according to claim 1, which is characterized in that the cationic starch is cationic etherification starch.
4. coating according to claim 1, which is characterized in that the nano silica is the silica of hydrophobically modified.
5. application of any coating of Claims 1 to 4 in the stainless steel filtering net that preparation is used for water-oil separating.
6. a kind of preparation method of the stainless steel filtering net for water-oil separating, which comprises the following steps:
S1. stainless steel filtering net is pre-processed；
S2. above-mentioned pretreated stainless steel filtering net is soaked in 5~10 min of immersion in coating described in claim 1, dried,
Repeat the above steps 2~4 times to obtain the final product.
7. method according to claim 6, which is characterized in that in step S1, the preprocess method is that strainer is placed in 20
DEG C~40 DEG C of cleaning agents in 15~20 min of ultrasound be subsequently placed in 15 DEG C~40 DEG C ethyl alcohol with 5~10 min of ultrapure water
15~20 min of ultrasound with ultrapure water and are dried for standby after taking-up.
8. method according to claim 7, which is characterized in that the cleaning agent by following mass fraction each component preparation and
At: 2~4 w/% of AEO-7, urea: 1~3 w/%, 3~5 w/% of fatty acid methyl ester ethoxylate sulfonate, sodium tripolyphosphate
1~2 w/%, 3~4 w/% of alkyl glycosides, surplus is water.
9. method according to claim 6, which is characterized in that in step S2, the drying condition is 120 DEG C of drying 30~60
min。
10. the stainless steel filtering net for water-oil separating that any the method for claim 6~9 is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811278946.9A CN109603205A (en) | 2018-10-30 | 2018-10-30 | A kind of preparation method of the stainless steel filtering net for water-oil separating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811278946.9A CN109603205A (en) | 2018-10-30 | 2018-10-30 | A kind of preparation method of the stainless steel filtering net for water-oil separating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109603205A true CN109603205A (en) | 2019-04-12 |
Family
ID=66002651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811278946.9A Pending CN109603205A (en) | 2018-10-30 | 2018-10-30 | A kind of preparation method of the stainless steel filtering net for water-oil separating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109603205A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110627161A (en) * | 2019-08-30 | 2019-12-31 | 佛山市南海区里水镇经济促进局 | Preparation method of multifunctional separation screen |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105838233A (en) * | 2016-06-16 | 2016-08-10 | 上海应用技术学院 | Organic-inorganic composite hydrophilic and oleophobic coating and preparation method thereof |
-
2018
- 2018-10-30 CN CN201811278946.9A patent/CN109603205A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105838233A (en) * | 2016-06-16 | 2016-08-10 | 上海应用技术学院 | Organic-inorganic composite hydrophilic and oleophobic coating and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 《化工百科全书》编辑委员会: "《化工百科全书》", 31 December 1997, 化学工业出版社 * |
| 唐和清: "《工科基础化学》", 30 September 2005, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110627161A (en) * | 2019-08-30 | 2019-12-31 | 佛山市南海区里水镇经济促进局 | Preparation method of multifunctional separation screen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Dual-functional membrane decorated with flower-like metal–organic frameworks for highly efficient removal of insoluble emulsified oils and soluble dyes | |
| CN105214511B (en) | A kind of Nano Silver/graphene/Kynoar hybrid membranes and preparation method thereof | |
| Ying et al. | A pre-wetting induced superhydrophilic/superlipophilic micro-patterned electrospun membrane with self-cleaning property for on-demand emulsified oily wastewater separation | |
| CN108409981A (en) | A kind of preparation method of modified metal organic frame and composite nanometer filtering film | |
| Sai et al. | Facile and green route to fabricate bacterial cellulose membrane with superwettability for oil–water separation | |
| Li et al. | Multifunctional walnut shell layer used for oil/water mixtures separation and dyes adsorption | |
| CN103816811B (en) | A kind of preparation method of organic forward osmosis membrane | |
| Xue et al. | Hierarchical superhydrophobic polydimethylsiloxane/copper terephthalate/polyurethane sponge for highly efficient oil/water separation | |
| CN108905296A (en) | A kind of preparation method of the dual network oil-water separation mesh film biodegradable with high stability | |
| CN104998552B (en) | A kind of oil-water separation mesh film and preparation method and application | |
| CN105384960B (en) | A kind of Kynoar/nano-cellulose super hydrophobic material and preparation method thereof | |
| CN105251373A (en) | Reduced graphene oxide emulsion separating film, and preparation method and application thereof | |
| CN108704490A (en) | A kind of lotion detaches the preparation method and applications of super-hydrophobic materials with hide glue fibril film | |
| CN106334543A (en) | Method for preparing three-dimensional porous oil absorption material | |
| CN110237830A (en) | A kind of mild preparation method of environmental protection of hydrophobic oleophilic oil sponge | |
| He et al. | Fabrication of firm, superhydrophobic and antimicrobial PVDF@ ZnO@ TA@ DT electrospun nanofibrous membranes for emulsion separation | |
| CN109603205A (en) | A kind of preparation method of the stainless steel filtering net for water-oil separating | |
| Zhang et al. | Polyester fabrics coated with cupric hydroxide and cellulose for the treatment of kitchen oily wastewater | |
| Jiang et al. | Corrosion-resistant porous hydrophobic PVDF-CBC foam for the treatment of oil-water separation | |
| CN114904404A (en) | Mixed matrix forward osmosis membrane based on MOF-808(Zr) and preparation method thereof | |
| CN112871146B (en) | Double-functional metal-organic framework material modified composite membrane and preparation method and application thereof | |
| CN112604514B (en) | Super-hydrophobic polyvinylidene fluoride oil-water separation composite membrane and preparation method and application thereof | |
| CN111701461B (en) | Hydrogel ultrafiltration membrane, preparation method and application thereof | |
| CN106110908A (en) | The preparation method of aromatic polyamides hydridization NF membrane | |
| CN112973451B (en) | Polymer microfiltration membrane with micro-nano composite network pore structure and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190412 |