CN108636384A - A kind of preparation method of greasy dirt sorbing material - Google Patents
A kind of preparation method of greasy dirt sorbing material Download PDFInfo
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- CN108636384A CN108636384A CN201810514724.6A CN201810514724A CN108636384A CN 108636384 A CN108636384 A CN 108636384A CN 201810514724 A CN201810514724 A CN 201810514724A CN 108636384 A CN108636384 A CN 108636384A
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
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Abstract
The invention discloses a kind of preparation methods of greasy dirt sorbing material, belong to Pollution technical field.The present invention passes through N β（Aminoethyl）γ aminopropyl trimethoxysilanes are modified ferroso-ferric oxide, graphene oxide is first acted on down through glucose, prepare reduced graphene foam, after graphene oxide freeze-drying vapour phase reduction grapheme foam can be obtained through hydrazine hydrate steam reduction, it is basis material by flexible polyurethane foams, sodium alginate is added, polyethylenimine solution coating is constructed in its surface, the inside of polyurethane foam is immersed in mixed soaking solution quickly, aqueous environment is presented in the three-dimensional open pores for keeping it internal, water penetrates foam base plate due to gravity and capillarity, and the oleophobic property that the polyurethane foam after water wetting is shown then makes crude oil be blocked on the upper surface of oil water separator foam sample, play the role of water-oil separating, with preferable oil-water selectivity.The present invention solves that current greasy dirt sorbing material adsorbance is few, the problem of oil-water selectivity difference.
Description
Technical field
The invention belongs to Pollution technical fields, and in particular to a kind of preparation method of greasy dirt sorbing material.
Background technology
In recent years, with the quickening of process of industrialization, oil pollutant and Oil spills problem become increasingly conspicuous more in water body
Hair.According to analysis, 40% oily pollution comes from oil tanker and shipping such as oil carrier, tank leakage accident etc. wherein in water body, and 36% comes from city
City's sewage and industrial wastewater discharge.Oily wastewater, liquid waste discharge and oil carrier, tank leakage can all cause environment serious
Pollution.It is at present to be absorbed oil slick to reach the purification of pollution sources by oil absorption material mostly to the processing of these pollution sources.From
The angle of environmental protection, these waste water for containing oils are had to before discharge by professional treatment.With regard to existing adsorption material
From the point of view of material, activated carbon, carbon nanotube are to use most conventional material at present.These materials are stablized with chemical property, specific surface
Product is big, and pore size distribution$ range extensively and the advantages that can realizing large-scale production is used for wastewater treatment.But both materials are also deposited
In defect：If activated carbon adsorption amount is not high, the rate of adsorption is slower；The adsorption effect of carbon nanotube is preferable, but it is extensive raw
The cost of production is higher.Traditional oil absorption material is inorganic material and organic material mostly by physical method, modified, mixing,
It suppresses, can be divided into according to its Oil-absorptive mechanism and contain type oil absorption material, gel-type oil absorption material and to contain gel compound
Oil absorption material, this kind of oil absorption material are to carry out oil suction using the capillary force in its surface, gap and cavity and/or utilize intermolecular
Or the physical condensation power between substance, generated clearance space during net structure is formed and wrap up oil suction.This kind of suction
Light wood material has that speed of oil absorption is slow, oil absorption is few, Oil keeping is poor, oil suction type is few.Therefore exist in practical operation
Numerous inconvenience, as oil content can be re-released into environment to the oil absorption material after absorbing oil content during transport and storage
In, cause secondary pollution.
Invention content
The technical problems to be solved by the invention：It is few for current greasy dirt sorbing material adsorbance, oil-water selectivity difference
Problem provides a kind of preparation method of greasy dirt sorbing material.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of preparation method of greasy dirt sorbing material, which is characterized in that the preparation method includes the following steps：
（1）Take ferroso-ferric oxide in mass ratio 1：80 ~ 90 are added ethyl alcohol, add the N- β of 8 ~ 10 times of ferroso-ferric oxide quality（Ammonia
Ethyl）γ-aminopropyltrimethoxysilane mixes, and ultrasound is warming up to 65 ~ 70 DEG C and is stirred, is cooled to room temperature, and magnet is received
Collection, takes gleanings to dry, obtains dried object；
（2）Take dried object in mass ratio 1：50 ~ 60 are added dimethylbenzene, and ultrasound adds the toluene two of dried object quality 50 ~ 60%
Isocyanates is stirred in 35 ~ 40 DEG C, obtains mixture, takes mixture in mass ratio 90 ~ 100：1 is added polyethylene glycol-
1000, it is stirred, obtains stirring mixture, take stirring mixture in mass ratio 10 ~ 15：2 ~ 4 addition end hydroxy butadienes stir
Mixing is mixed, mixture A must be stirred, according to the mass fraction, stirs 100 ~ 150 parts of stirring mixture A, 1 ~ 3 part of dodecyl benzene sulfonic acid
Sodium, 0.5 ~ 0.8 part of triethanolamine, 0.4 ~ 0.8 part of polyvinylpyrrolidone, 50 ~ 60 parts of deionized waters, are warming up to 75 ~ 80 DEG C and stir
Mix mixing, magnet is collected, and gleanings A is obtained, spare；
（3）Take graphene oxide in mass ratio 1：4 ~ 7 are added deionized waters, and ultrasonic disperse obtains ultrasonic disperse liquid, take glucose by
Mass ratio 1：20 ~ 25 addition distilled water are stirred, and are obtained glucose solution, are taken ultrasonic disperse liquid in mass ratio 10 ~ 15：4 ~ 7 add
Enter glucose solution to be stirred, is warming up to 150 ~ 160 DEG C of 5 ~ 6h of heat preservation, is cooled to room temperature, is freeze-dried, obtains dried object, take
Dried object in mass ratio 4：10~15：8 ~ 12 are added deionized water, hydrazine hydrate, are stirred in 80 ~ 90 DEG C, obtain mixed liquor；
（4）According to the mass fraction, 40 ~ 50 parts of steps are taken（2）It is spare to obtain gleanings A, 40 ~ 50 portions of mixed liquors, 3 ~ 7 parts of alginic acids
Sodium, 100 ~ 150 parts of deionized water mixing, obtain mixed soaking solution, take flexible polyurethane foams in mass ratio 1：10 ~ 15 be dipped to it is mixed
It closes and impregnates 5 ~ 10min in soak, take out soak, take polyethyleneimine in mass ratio 1：6 ~ 9 are added deionized water mixing, magnetic
Power stirs, and polyethylenimine solution is obtained, by soak in mass ratio 1：20 ~ 25 are added polyethylenimine solution, stand, and repeat to soak
Bubble takes out final soak, is washed through deionized water to mixed liquor and polyethylenimine solution process 6 ~ 8 times is impregnated, dry, i.e.,
Obtain greasy dirt sorbing material.
Compared with other methods, advantageous effects are the present invention：
（1）The present invention passes through N- β（Aminoethyl）γ-aminopropyltrimethoxysilane is modified ferroso-ferric oxide, introduces first
Two different chlorate of benzene and polyethylene glycol are blocked after modified particle surface copolymerization using hydrophobic end hydroxy butadiene, are used
Inside is hollow structure, and microsphere surface has pore structure, due in emulsion polymerization process, two different chlorate-NCO of toluene with
- the OH of hydroxyl butadiene polymerize, and forms hydrophobic shell, can for a long time be floated on the water surface, after being carried out at the same time greasy dirt absorption, through outer
Add magnetic field to be recycled, can recycle；
（2）The present invention first acts on down graphene oxide through glucose, reduced graphene foam is prepared, after graphene oxide freeze-drying
Vapour phase reduction grapheme foam can be obtained through hydrazine hydrate steam reduction, there is loose porous property through graphene obtained,
By restoring the oxygen-containing group in graphene oxide, to make it be changed into hydrophobicity by hydrophily, pass through hydrophobic oleophilic oil
Crude oil can be enable to rapidly diffuse into inside, there is the advantage that absorption is fast, adsorption capacity is big, be conducive to the filling of greasy dirt；
（3）The present invention is basis material by flexible polyurethane foams, sodium alginate is added, polyethylenimine solution coating is constructed
In its surface, surface roughness has once been handed over, the hydrophily of material itself immerses the interior of polyurethane foam in mixed soaking solution quickly
Aqueous environment is presented in portion, the three-dimensional open pores for keeping it internal, and water is since gravity and capillarity penetrate foam base plate, and water moistens
The oleophobic property that polyurethane foam after wet is shown then makes crude oil be blocked on the upper surface of oil water separator foam sample, plays
The effect of water-oil separating has preferable oil-water selectivity.
Specific implementation mode
Flexible polyurethane foams：Density is 0.028g/cm3, it is purchased from the green limited starting material company in Jiangsu.
A kind of preparation method of greasy dirt sorbing material, includes the following steps：
（1）Take ferroso-ferric oxide in mass ratio 1：80 ~ 90 are added the ethanol solution that mass fraction is 60%, add four oxidations three
The N- β of 8 ~ 10 times of weight of iron（Aminoethyl）γ-aminopropyltrimethoxysilane mixes, and 5 ~ 10min of ultrasound is warming up to 65 ~ 70 DEG C
It is stirred 4 ~ 5h, is cooled to room temperature, magnet is collected, and is taken gleanings to dry, is obtained dried object；
（2）Take dried object in mass ratio 1：50 ~ 60 are added dimethylbenzene, and 10 ~ 15min of ultrasound adds dried object quality 50 ~ 60%
Toluene di-isocyanate(TDI), be stirred 30 ~ 40min in 35 ~ 40 DEG C, obtain mixture, take mixture in mass ratio 90 ~ 100：1
Polyethylene glycol-1000 is added, is stirred 50 ~ 60min, obtains stirring mixture, takes stirring mixture in mass ratio 10 ~ 15：2~4
End hydroxy butadiene is added, is stirred 1 ~ 2h, mixture A must be stirred, according to the mass fraction, it is mixed to stir 100 ~ 150 parts of stirrings
Close object A, 1 ~ 3 part of neopelex, 0.5 ~ 0.8 part of triethanolamine, 0.4 ~ 0.8 part of polyvinylpyrrolidone, 50 ~ 60 parts
Deionized water is warming up to 75 ~ 80 DEG C and is stirred 3 ~ 4h, and magnet is collected, and obtains gleanings A, spare；
（3）Take graphene oxide in mass ratio 1：4 ~ 7 are added deionized water, and 20 ~ 30min of ultrasonic disperse obtains ultrasonic disperse liquid, takes
Glucose in mass ratio 1：20 ~ 25 addition distilled water are stirred 15 ~ 20min, obtain glucose solution, take ultrasonic disperse liquid by matter
Measure ratio 10 ~ 15：4 ~ 7 are added glucose solution, are stirred 10 ~ 15min, are warming up to 150 ~ 160 DEG C of 5 ~ 6h of heat preservation, are cooled to room
Temperature, freeze-drying, obtains dried object, takes dried object in mass ratio 4：10~15：8 ~ 12 are added deionized water, hydrazine hydrate, in 80 ~ 90
DEG C it is stirred 50 ~ 60min, obtains mixed liquor；
（4）According to the mass fraction, 40 ~ 50 parts of steps are taken（2）It is spare to obtain gleanings A, 40 ~ 50 portions of mixed liquors, 3 ~ 7 parts of alginic acids
Sodium, 100 ~ 150 parts of deionized water mixing, obtain mixed soaking solution, take flexible polyurethane foams in mass ratio 1：10 ~ 15 be dipped to it is mixed
It closes and impregnates 5 ~ 10min in soak, take out soak, take polyethyleneimine in mass ratio 1：6 ~ 9 are added deionized water mixing, magnetic
Power stirring 18 ~ for 24 hours, polyethylenimine solution is obtained, by soak in mass ratio 1：20 ~ 25 are added polyethylenimine solution, stand 2
~ 5min, repetition, which is dipped to, impregnates mixed liquor and polyethylenimine solution process 6 ~ 8 times, final soak is taken out, through deionized water
Washing, it is dry to get greasy dirt sorbing material.
Embodiment 1
Flexible polyurethane foams：Density is 0.028g/cm3, it is purchased from the green limited starting material company in Jiangsu.
A kind of preparation method of greasy dirt sorbing material, includes the following steps：
（1）Take ferroso-ferric oxide in mass ratio 1：80 are added the ethanol solution that mass fraction is 60%, add ferroso-ferric oxide matter
The N- β of 8 times of amount（Aminoethyl）γ-aminopropyltrimethoxysilane mixes, and ultrasonic 5min is warming up to 65 DEG C and is stirred 4h, cold
But to room temperature, magnet is collected, takes gleanings to dry, obtain dried object；
（2）Take dried object in mass ratio 1：50 addition dimethylbenzene, ultrasonic 10min, the toluene two for adding dried object quality 50% are different
Cyanate is stirred 30min in 35 DEG C, obtains mixture, takes mixture in mass ratio 90：1 is added polyethylene glycol-1000, stirs
Mixing 50min is mixed, stirring mixture is obtained, takes stirring mixture in mass ratio 10：2 are added end hydroxy butadiene, are stirred
1h must stir mixture A, according to the mass fraction, stir 100 parts of stirring mixture A, 1 part of neopelex, 0.5 part three
Ethanol amine, 0.4 part of polyvinylpyrrolidone, 50 parts of deionized waters are warming up to 75 DEG C and are stirred 3h, and magnet is collected, must be collected
Object A, it is spare；
（3）Take graphene oxide in mass ratio 1：4 are added deionized water, and ultrasonic disperse 20min obtains ultrasonic disperse liquid, takes grape
Sugar in mass ratio 1：20 addition distilled water are stirred 15min, obtain glucose solution, take ultrasonic disperse liquid in mass ratio 10：4 add
Enter glucose solution, be stirred 10min, is warming up to 150 DEG C of heat preservation 5h, is cooled to room temperature, is freeze-dried, obtains dried object, take
Dried object in mass ratio 4：10：8 are added deionized water, hydrazine hydrate, are stirred 50min in 80 DEG C, obtain mixed liquor；
（4）According to the mass fraction, 40 parts of steps are taken（2）Spare gleanings A, 40 portions of mixed liquors, 3 parts of sodium alginates, 100 parts go
Ionized water mixes, and obtains mixed soaking solution, takes flexible polyurethane foams in mass ratio 1：10 are dipped in mixed soaking solution and impregnate
5min takes out soak, takes polyethyleneimine in mass ratio 1：6 are added deionized water mixing, and magnetic agitation 18h obtains polyethylene
Imide liquor, by soak in mass ratio 1：20 are added polyethylenimine solution, stand 2min, and repetition is dipped to immersion mixed liquor
With polyethylenimine solution process 6 times, final soak is taken out, is washed through deionized water, it is dry to get greasy dirt sorbing material.
Embodiment 2
Flexible polyurethane foams：Density is 0.028g/cm3, it is purchased from the green limited starting material company in Jiangsu.
A kind of preparation method of greasy dirt sorbing material, includes the following steps：
（1）Take ferroso-ferric oxide in mass ratio 1：85 are added the ethanol solution that mass fraction is 60%, add ferroso-ferric oxide matter
The N- β of 9 times of amount（Aminoethyl）γ-aminopropyltrimethoxysilane mixes, and ultrasonic 8min is warming up to 68 DEG C and is stirred 4.5h,
It is cooled to room temperature, magnet is collected, and is taken gleanings to dry, is obtained dried object；
（2）Take dried object in mass ratio 1：55 addition dimethylbenzene, ultrasonic 13min, the toluene two for adding dried object quality 55% are different
Cyanate is stirred 35min in 38 DEG C, obtains mixture, takes mixture in mass ratio 95：1 is added polyethylene glycol-1000, stirs
Mixing 55min is mixed, stirring mixture is obtained, takes stirring mixture in mass ratio 13：3 are added end hydroxy butadiene, are stirred
1.5h must stir mixture A, according to the mass fraction, stir 130 parts of stirring mixture A, 2 parts of neopelexes, 0.7 part
Triethanolamine, 0.6 part of polyvinylpyrrolidone, 55 parts of deionized waters are warming up to 78 DEG C and are stirred 3.5h, and magnet is collected, obtained
Gleanings A, it is spare；
（3）Take graphene oxide in mass ratio 1：6 are added deionized water, and ultrasonic disperse 25min obtains ultrasonic disperse liquid, takes grape
Sugar in mass ratio 1：23 addition distilled water are stirred 18min, obtain glucose solution, take ultrasonic disperse liquid in mass ratio 13：6 add
Enter glucose solution, be stirred 13min, is warming up to 155 DEG C of heat preservation 5.5h, is cooled to room temperature, is freeze-dried, obtains dried object,
Take dried object in mass ratio 4：13：10 are added deionized water, hydrazine hydrate, are stirred 55min in 85 DEG C, obtain mixed liquor；
（4）According to the mass fraction, 45 parts of steps are taken（2）Spare gleanings A, 45 portions of mixed liquors, 5 parts of sodium alginates, 130 parts go
Ionized water mixes, and obtains mixed soaking solution, takes flexible polyurethane foams in mass ratio 1：13 are dipped in mixed soaking solution and impregnate
8min takes out soak, takes polyethyleneimine in mass ratio 1：8 are added deionized water mixing, and magnetic agitation 22h obtains polyethylene
Imide liquor, by soak in mass ratio 1：23 are added polyethylenimine solution, stand 3min, and repetition is dipped to immersion mixed liquor
With polyethylenimine solution process 7 times, final soak is taken out, is washed through deionized water, it is dry to get greasy dirt sorbing material.
Embodiment 3
Flexible polyurethane foams：Density is 0.028g/cm3, it is purchased from the green limited starting material company in Jiangsu.
A kind of preparation method of greasy dirt sorbing material, includes the following steps：
（1）Take ferroso-ferric oxide in mass ratio 1：90 are added the ethanol solution that mass fraction is 60%, add ferroso-ferric oxide matter
The N- β of 10 times of amount（Aminoethyl）γ-aminopropyltrimethoxysilane mixes, and ultrasonic 10min is warming up to 70 DEG C and is stirred 5h,
It is cooled to room temperature, magnet is collected, and is taken gleanings to dry, is obtained dried object；
（2）Take dried object in mass ratio 1：60 addition dimethylbenzene, ultrasonic 15min, the toluene two for adding dried object quality 60% are different
Cyanate is stirred 40min in 40 DEG C, obtains mixture, takes mixture in mass ratio 100：1 is added polyethylene glycol-1000, stirs
Mixing 60min is mixed, stirring mixture is obtained, takes stirring mixture in mass ratio 15：4 are added end hydroxy butadiene, are stirred
2h must stir mixture A, according to the mass fraction, stir 150 parts of stirring mixture A, 3 parts of neopelexes, 0.8 part three
Ethanol amine, 0.8 part of polyvinylpyrrolidone, 60 parts of deionized waters are warming up to 80 DEG C and are stirred 4h, and magnet is collected, must be collected
Object A, it is spare；
（3）Take graphene oxide in mass ratio 1：7 are added deionized water, and ultrasonic disperse 30min obtains ultrasonic disperse liquid, takes grape
Sugar in mass ratio 1：25 addition distilled water are stirred 20min, obtain glucose solution, take ultrasonic disperse liquid in mass ratio 15：7 add
Enter glucose solution, be stirred 15min, is warming up to 160 DEG C of heat preservation 6h, is cooled to room temperature, is freeze-dried, obtains dried object, take
Dried object in mass ratio 4：15：12 are added deionized water, hydrazine hydrate, are stirred 60min in 90 DEG C, obtain mixed liquor；
（4）According to the mass fraction, 50 parts of steps are taken（2）Spare gleanings A, 50 portions of mixed liquors, 7 parts of sodium alginates, 150 parts go
Ionized water mixes, and obtains mixed soaking solution, takes flexible polyurethane foams in mass ratio 1：15 are dipped in mixed soaking solution and impregnate
10min takes out soak, takes polyethyleneimine in mass ratio 1：9 are added deionized water mixing, and magnetic agitation for 24 hours, obtains polyethylene
Imide liquor, by soak in mass ratio 1：25 are added polyethylenimine solution, stand 5min, and repetition is dipped to immersion mixed liquor
With polyethylenimine solution process 8 times, final soak is taken out, is washed through deionized water, it is dry to get greasy dirt sorbing material.
Comparative example：The oil stain absorbent of company of Suzhou City production.
Use greasy dirt sorbing material and comparative example oil stain absorbent prepared by embodiment 1,2,3 by oil types oil suction times respectively
Rate and oil absorption are detected, and test result is shown in Table 1.
Table 1：
In summary, greasy dirt sorbing material oil-water selectivity of the invention is preferable, and oil absorption bigger, be worth promoting use.
Claims (1)
1. a kind of preparation method of greasy dirt sorbing material, which is characterized in that the preparation method includes the following steps：
（1）Take ferroso-ferric oxide in mass ratio 1：80 ~ 90 are added ethyl alcohol, add the N- β of 8 ~ 10 times of ferroso-ferric oxide quality（Ammonia
Ethyl）γ-aminopropyltrimethoxysilane mixes, and ultrasound is warming up to 65 ~ 70 DEG C and is stirred, is cooled to room temperature, and magnet is received
Collection, takes gleanings to dry, obtains dried object；
（2）Take dried object in mass ratio 1：50 ~ 60 are added dimethylbenzene, and ultrasound adds the toluene two of dried object quality 50 ~ 60%
Isocyanates is stirred in 35 ~ 40 DEG C, obtains mixture, takes mixture in mass ratio 90 ~ 100：1 is added polyethylene glycol-
1000, it is stirred, obtains stirring mixture, take stirring mixture in mass ratio 10 ~ 15：2 ~ 4 addition end hydroxy butadienes stir
Mixing is mixed, mixture A must be stirred, according to the mass fraction, stirs 100 ~ 150 parts of stirring mixture A, 1 ~ 3 part of dodecyl benzene sulfonic acid
Sodium, 0.5 ~ 0.8 part of triethanolamine, 0.4 ~ 0.8 part of polyvinylpyrrolidone, 50 ~ 60 parts of deionized waters, are warming up to 75 ~ 80 DEG C and stir
Mix mixing, magnet is collected, and gleanings A is obtained, spare；
（3）Take graphene oxide in mass ratio 1：4 ~ 7 are added deionized waters, and ultrasonic disperse obtains ultrasonic disperse liquid, take glucose by
Mass ratio 1：20 ~ 25 addition distilled water are stirred, and are obtained glucose solution, are taken ultrasonic disperse liquid in mass ratio 10 ~ 15：4 ~ 7 add
Enter glucose solution to be stirred, is warming up to 150 ~ 160 DEG C of 5 ~ 6h of heat preservation, is cooled to room temperature, is freeze-dried, obtains dried object, take
Dried object in mass ratio 4：10~15：8 ~ 12 are added deionized water, hydrazine hydrate, are stirred in 80 ~ 90 DEG C, obtain mixed liquor；
（4）According to the mass fraction, 40 ~ 50 parts of steps are taken（2）It is spare to obtain gleanings A, 40 ~ 50 portions of mixed liquors, 3 ~ 7 parts of alginic acids
Sodium, 100 ~ 150 parts of deionized water mixing, obtain mixed soaking solution, take flexible polyurethane foams in mass ratio 1：10 ~ 15 be dipped to it is mixed
It closes and impregnates 5 ~ 10min in soak, take out soak, take polyethyleneimine in mass ratio 1：6 ~ 9 are added deionized water mixing, magnetic
Power stirs, and polyethylenimine solution is obtained, by soak in mass ratio 1：20 ~ 25 are added polyethylenimine solution, stand, and repeat to soak
Bubble takes out final soak, is washed through deionized water to mixed liquor and polyethylenimine solution process 6 ~ 8 times is impregnated, dry, i.e.,
Obtain greasy dirt sorbing material.
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| CN114620804A (en) * | 2021-03-25 | 2022-06-14 | 景赫新材料科技(浙江)有限公司 | High-hydrophilicity oil collecting material for oil separation tank |
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| CN113526605A (en) * | 2021-07-09 | 2021-10-22 | 天津大学 | Water surface floating oil continuous adsorption device and method based on magnetic super-hydrophobic porous sponge |
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| CN115888661A (en) * | 2022-11-10 | 2023-04-04 | 西南科技大学 | Sponge and iron oxide water-based paint compound and preparation and application method thereof |
| CN115888661B (en) * | 2022-11-10 | 2024-04-05 | 西南科技大学 | Sponge and iron oxide water-based paint compound and preparation and application methods thereof |
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