CN103952903B - The Preparation method and use of the oil-water separation fabric with hydrophilic oleophobic properties that titanium oxygen compound is modified - Google Patents
The Preparation method and use of the oil-water separation fabric with hydrophilic oleophobic properties that titanium oxygen compound is modified Download PDFInfo
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Abstract
The invention discloses the Preparation method and use of the oil-water separation fabric with hydrophilic oleophobic properties that a kind of titanium oxygen compound is modified, relate to chemical, technical field of function materials.Described method has the titanium oxygen compound of super hydrophilic and the most superoleophobic characteristic and reaches superhydrophilic superoleophobic effect by modifying in fabric substrate and realize oil-water separation, its under water oil-water separation effectiveness of performance the highest.The composite construction that the oil-water separation characteristic of this oil-water separation fabric is made up of the fabric and nano level titanium oxygen compound with micrometer structure is together decided on.The hydrophilic of the fabric in the present invention is formed under conditions of extremely gentleness, and fabric has automatically cleaning, moisture-stable and eco-friendly characteristic under water, and preparation method low cost of the present invention, speed are fast, simple and convenient.The present invention is that the device exploitation promoting and controlling filtration and separation field provides theoretical direction and technical support with application.
Description
Technical field
The present invention relates to chemical, technical field of function materials, particularly to having can be used for of hydrophilic oleophobic properties
The methods for making and using same of the fabric of oil-water separation.
Background technology
Oil-water separation is the work being significant in productive life, and at present, water pollutes, particularly greasy dirt dye
The event of water occurs again and again.Oil-polluted water and the big class of aqueous waste oil two substantially can be divided into, wherein containing greasy dirt according to the content of profit
Water wide material sources, such as Oil spills, the water ballast of steamer, land exploitation oil ore, and food, weaving, machining, system
Numerous industries such as leather all can discharge substantial amounts of oil-polluted water in environment, and oil-polluted water endangers the healthy of the mankind and peace
Entirely, environment is produced and pollutes, destroy ecological balance.So finding a kind of simple efficient method to carry out oil-water separation, process
This pollutant becomes topic of concern, is increasingly becoming the important subject of research worker.
Patent document number is CN1387932A, CN1721030A, CN101518695A and Application No.
The patent documentation of 200910217895.3 individually discloses oil-water separation mesh film or the profit with oleophylic function super-hydrophobic, super
Separate mesh.Although four kinds of technical schemes all have the effect of oil-water separation, but there is also different weak points, such as manufacture process
Complexity, have has used fluorochemical, and have needs hot setting etc..Equally, document Angew.Chem.Int.Ed.2004,
43,2012;J.Mater.Chem.2007,17,4772;Nanotechnology,2007,18,015103;
Macromol.Rapid.Commun.2006,27,804;ACS Appl.Mater.Interfaces, 2009,1,2613 also report
Can be used for the nethike embrane with super-hydrophobic and super oleophylic function of oil-water separation, but there is also above-mentioned similar problem.
Carrying out oil-water separation with film above is " oil passes through " mode, oil through time will result in certain fouling membrane, for a long time and
The long flux just affecting film, reduces service life.And in terms of separation, there is certain shortcoming, because the density of water is more than
Oil, so water is under oil, then water will form one layer of water layer isolation oil through film, it is impossible to successfully carries out oil-water separation.
Chinese invention patent CN102029079A discloses have the most superoleophobic character oil-water separation mesh film and
Preparation method.The nethike embrane using hydrogel material coating carries out oil-water separation, although solving greasy dirt dye separate mesh or nethike embrane
Relatively much progress is had in problem, but, owing to hydrogel material has the character of water-swellable, it is unable to undergo long-term water and washes away, this
Allowing for hydrogel material to be easy to come off from silk screen substrate, the stability causing this oil-water separation mesh film is not enough, thus limits
Its application.
In order to overcome this shortcoming, Chinese invention patent CN102350094A discloses a kind of based on micro-nano hierarchy
Poroid reticulated net substrate, such as rustless steel, copper, aluminum, ferrum or titanium fabric web etc., growing nano-rod array in fabric web
Structure makes its superhydrophilic superoleophobic, although improve stability, but the poor water retention property of fabric substrate.
Therefore, prepare aspect still there is sizable choosing realizing water and oil separator part stable, efficient, eco-friendly
War.
Summary of the invention
For problems of the prior art, the present invention proposes one and prepares and have in atmosphere and the most super hydrophilic
Method with the oil-water separation fabric of the most superoleophobic character.Described fabric is to have super by modification in fabric substrate
The titanium oxygen compound of hydrophilic and the most superoleophobic characteristic reaches superhydrophilic superoleophobic effect and realizes oil-water separation, and it is under water
Oil-water separation effectiveness of performance is the highest.The oil-water separation characteristic of this oil-water separation fabric is by fabric and the nanometer with micrometer structure
The composite construction of the titanium oxygen compound composition of level is together decided on.
The hydrophilic of the fabric in the present invention is formed under conditions of extremely gentleness, fabric have under water automatically cleaning,
Moisture-stable and eco-friendly characteristic, preparation method low cost, speed are fast, simple and convenient.The present invention controls to filter for promoting
Develop with the device of separation field and provide theoretical direction and technical support with application.
The oil-water separation fabric of the present invention has the composite construction of special nanometer and micron, the i.e. fabric web of micrometer structure
The titanium oxygen compound clad of hole and nano thickness.The oil-water separation fabric of the present invention has super hydrophilic in atmosphere and under water
Property, and oil droplet is had superoleophobic property, and under water oil is had the adhesion less than 5 μ N.The present invention has hydrophilic oleophobic
The oil-water separation fabric of character is the titanium oxygen compound modifying nano thickness in fabric substrate, described oil-water separation fabric tool
There is the mesh of micro-meter scale.The film of described titanium oxygen compound nano thickness is the ethanol solution ageing number utilizing butyl titanate
Soak fabric after it and dry gained.
Oily-water seperating equipment used by the present invention is simple and easy to get, and described oily-water seperating equipment includes tubulose water feed apparatus, props up
Support arrangement, oil-water separation fabric and filtrate receive device, and described tubulose water feed apparatus is fixed on described filtrate by support means
Receiving above device, described oil-water separation fabric is fixed on described tubulose water feed apparatus bottom.Oil-water mixture is intake from tubulose
After pouring into above device, the oil-water separation fabric being modified with titanium oxygen compound in the water filtration present invention flows to the filtrate of lower section and connects
In receiving apparatus, oil is blocked in the tubulose water feed apparatus above oil-water separation fabric simultaneously.
The oil-water separation fabric of the present invention has the character stable, separation efficiency is high, can be with large area and low-cost production.
The oil-water separation fabric and the oily-water seperating equipment that utilize the present invention carry out oil-water separation test to different types of oil,
Find different types of oil is had different oil-water separation efficiency.With the oil-water separation fabric of the present invention respectively to oil-containing 30%
～70% edible oil of concentration (mass percent concentration), gasoline, the oil water mixture of liquid paraffin carry out oil-water separation, used
Oil water mixture is that high-speed stirred obtains, and recording the separation efficiency to edible oil is 90%～97%, to the separation efficiency of gasoline is
90%～99%, the separation efficiency to liquid paraffin is 90%～98%.
The preparation method of the described oil-water separation fabric with super hydrophilic and the most superoleophobic character comprises the following steps:
(1) weighing volume ratio for (1:5)～the butyl titanate of (1:10) and dehydrated alcohol reagent, stirring is allowed to the most mixed
Close.Continuously adding glacial acetic acid regulation pH wherein, glacial acetic acid and butyl titanate volume ratio are 1:1～3:1, and stirring 1～5 is little
Time.This is solution A.
(2) (wherein water: dehydrated alcohol volume ratio is 1:1～1:10) and by water is mixed with dehydrated alcohol.This is solution B.
The volume of described water weighs with the ratio that butyl titanate volume ratio is 5:1～10:1 in step (1) according to water.
Seal after slowly pouring solution B, solution A and solution B mixing in solution A into, continue stirring 0.5～3 hour.
Standing after sealing stirring, ageing is 12～120 hours, stand-by.
(3) fabric is put in the aged solution in step (2), soaks 1～24 hour, take out be dried at room temperature for 5～
Within 48 hours, i.e. obtain the oil-water separation fabric of the superhydrophilic superoleophobic being modified with titanium oxygen compound of the present invention.
The preparation cost of the oil-water separation fabric of the present invention is cheap, and raw material is easy to get and environmental friendliness, equipment and processing technology
Very simple, can be used for preparing on a large scale, and oil-water separation fabric oil-water separation efficiency is high, modify the fabric tool of titanium oxygen compound
There are good stability and water-retaining property, therefore there is preferable application prospect.
Accompanying drawing explanation
Fig. 1: optical microscope enlarged photograph when fabric substrate is dried after modifying titanium oxygen compound；
Fig. 2: the optical microscope enlarged photograph after fabric substrate is soaked after modifying titanium oxygen compound；
Fig. 3: water droplet contact angle photo in the fabric substrate of unmodified titanium oxygen compound；
Photo after the fabric that Fig. 4: water drop contact titanium oxygen compound is modified；
A kind of based on micro-nano hierarchy fabric the oily-water seperating equipment structural representation that Fig. 5: the present invention proposes；
Fig. 6: the preparation method flow chart of micro-nano hierarchy fabric in the present invention；
Fig. 7 A and Fig. 7 B respectively unmodified have the scanning electron microscope of the different amplification of the fabric of titanium oxygen compound to amplify
Photo；
Fig. 8 A and Fig. 8 B is respectively the scanning electron microscope enlarged photograph of the different amplification of the fabric modifying titanium oxygen compound；
In figure:
1-tubulose water feed apparatus；2-support means；3-oil-water separation fabric；4-filtrate receives device.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
Embodiment 1: the preparation method using the present invention to provide prepares oil-water separation fabric, as shown in Figure 6, specifically include with
Under several steps:
(1), under room temperature, weigh 3ml butyl titanate and pour in beaker, add 15ml dehydrated alcohol, add after stirring
Enter 3ml glacial acetic acid regulation pH magnetic agitation 1 hour, obtain solution A.
(2) weigh 15ml dehydrated alcohol and 15ml ultra-pure water, after mixing, obtain solution B；Solution B is slowly poured into just at magnetic
In the solution A of power stirring.Seal after mixing and continue to stir 0.5 hour.Gained solution is sealed, is aged 12h, stand-by.
(3) fabric is put in the aged solution in step (2), soak 1 hour.5 hours it are dried at room temperature for after taking-up
I.e. obtain the oil-water separation fabric of the superhydrophilic superoleophobic being modified with titanium oxygen compound of the present invention.
Described fabric is the preferable fabrics of water absorption such as cotton, linen, bamboo fibre, polyvinyl.
Being measured the above-mentioned oil-water separation fabric prepared, SEM characterization result shows, titanium oxygen compound is significantly
Modify in fabric face, and carry out contrasting (see Fig. 7 A, Fig. 7 B and Fig. 8 A, Fig. 8 B) with the fabric of unmodified, be modified with at gained
Measure the spreading rate of water droplet in air on the oil-water separation fabric of the superhydrophilic superoleophobic of titanium oxygen compound, record water droplet complete
Sprawling, i.e. complete wetting, complete in spreading over 100ms completely, the contact angle to water droplet is 0 °.
Edible oil drop is suspended on the ring that copper wire is made, this oil-water separation fabric adhesion to edible oil of subaqueous survey
Power, contacts with fabric face with the speed controlling oil droplet of 0.05mm/s, then restores to the original state, have recorded whole process with computer
The change of power, and read the oil-water separation fabric adhesion under water to oil droplet.Test result obtains this oil-water separation fabric to food
With the adhesion of oil less than 5 μ N, show that oil-water separation fabric of the present invention has the characteristic of low adhesion to edible oil.
Weighing the mixed liquor (mass ratio is 3:7) of edible oil and water, high-speed stirred is allowed to uniformly mix, and utilizes oil-water separation
Device (such as Fig. 5) carries out oil-water separation.Oil-water mixture after stirring is poured into, through tubulose above tubulose water feed apparatus 1
The oil-water separation fabric 3 arranged at water feed apparatus 1 lower opening carries out oil-water separation, and water is through oil-water separation fabric 3 and flows into
The filtrate of lower section receives device 4, and edible oil is blocked above oil-water separation fabric 3, and test result obtains oil-water separation effect
Rate is 97%, illustrates that superhydrophilic superoleophobic oil-water separation fabric of the present invention has good oil-water separation efficiency to edible oil,
Edible oil can be carried out oil-water separation more thoroughly.
Described oily-water seperating equipment, as it is shown in figure 5, include tubulose water feed apparatus 1, support means 2, oil-water separation fabric
3 and filtrate receive device 4, wherein, tubulose water feed apparatus 1 be the tubular container that two ends are penetrating, and described oil-water separation fabric 3 is fixing
Port below tubulose water feed apparatus 1；Support means 2 is for supporting the tubulose water feed apparatus 1 of top, and is intake by tubulose
Device 1 is fixed on the filtrate of lower section and receives above device 4.After installing described oily-water seperating equipment as shown in Figure 5, oil mixing with water
Liquid after port addition, separates through oil-water separation fabric 3 above tubulose water feed apparatus 1, and the water after separation is collected in filter
Liquid receives in device 4, and oil is blocked in the tubulose water feed apparatus 1 above described oil-water separation fabric 3 simultaneously.
Embodiment 2:
In the present embodiment, the hydrophilic oleophobic fabric of micro-nano hierarchy is to be prepared by following steps, as shown in Figure 6, specifically
Including following step:
(1), under room temperature, weigh 3ml butyl titanate and pour in beaker, add 30ml dehydrated alcohol, add after stirring
Enter 9ml glacial acetic acid regulation pH magnetic agitation 5 hours, obtain solution A.
(2) weigh 150ml dehydrated alcohol and 30ml ultra-pure water, slowly pour into after mixing in step (1) just in magnetic agitation
Solution A in, seal after mixing and continue to stir 3 hours.Gained solution is sealed, is aged 12h, stand-by.
(3) fabric is put in the aged solution in step (2), soak 1 hour.5 hours it are dried at room temperature for after taking-up
I.e. obtain the oil-water separation fabric of the superhydrophilic superoleophobic being modified with titanium oxygen compound of the present invention.
SEM characterization result shows, titanium oxygen compound is modified significantly in fabric face, and with the fabric of unmodified carry out right
Ratio, what the oil-water separation fabric of the superhydrophilic superoleophobic being modified with titanium oxygen compound at gained was measured water droplet in air sprawls speed
Degree, records water droplet and sprawls completely, be i.e. complete wetting, complete in spreading over 100ms completely, and contact angle is 0 °.
Edible oil drop is suspended on the ring that copper wire is made, this oil-water separation fabric adhesion to edible oil of subaqueous survey
Power, contacts with fabric face with the speed controlling oil droplet of 0.05mm/s, then restores to the original state, have recorded whole process with computer
The change of power, and read the oil-water separation fabric adhesion under water to oil droplet.Test result obtains this oil-water separation fabric to food
With the adhesion of oil less than 5 μ N, show that oil-water separation fabric of the present invention has the characteristic of low adhesion to edible oil.
Weighing the mixture (mass ratio is 3:7) of edible oil and water, high-speed stirred is allowed to uniformly mix, and utilizes the present invention to carry
The oily-water seperating equipment (such as Fig. 5) of confession carries out oil-water separation.Oil water mixture after stirring is fallen above tubulose water feed apparatus 1
Entering, the oil-water separation fabric 3 through tubulose water feed apparatus 1 lower opening carries out oil-water separation, and water is through oil-water separation fabric 3 also
Filtrate reception device 4 below inflow, and the blocked upper end at oil-water separation fabric 3 of edible oil, test result obtains profit and divides
It is 97% from efficiency, illustrates that superhydrophilic superoleophobic oil-water separation fabric of the present invention has good oil-water separation to edible oil
Efficiency, it is possible to edible oil is carried out oil-water separation more thoroughly.
Embodiment 3:
The preparation method using the present invention to provide prepares oil-water separation fabric, and described oil-water separation fabric has micro-nano point
Level structure, is the nethike embrane in hydrophilic oleophobic properties, and described preparation method specifically includes following step:
(1), under room temperature, weigh 3ml butyl titanate and pour in beaker, add 15ml dehydrated alcohol, add after stirring
Enter 3ml glacial acetic acid regulation pH magnetic agitation 5 hours.
(2) weigh 150ml dehydrated alcohol and 15ml ultra-pure water, slowly pour into after mixing in step (1) just in magnetic agitation
Solution in, seal after mixing and continue to stir 0.5 hour.Gained solution is sealed, is aged 120h, stand-by.
(3) fabric is put in the aged solution in step (2), soak 1 hour.5 hours it are dried at room temperature for after taking-up
I.e. obtain the oil-water separation fabric of the superhydrophilic superoleophobic being modified with titanium oxygen compound of the present invention.
SEM characterization result shows, titanium oxygen compound is modified significantly in fabric face, and with the fabric of unmodified carry out right
Ratio, what the oil-water separation fabric of the superhydrophilic superoleophobic being modified with titanium oxygen compound at gained was measured water droplet in air sprawls speed
Degree, records water droplet and sprawls completely, be i.e. complete wetting, complete in spreading over 100ms completely, and contact angle is 0 °.
Edible oil drop is suspended on the ring that copper wire is made, this oil-water separation fabric adhesion to edible oil of subaqueous survey
Power, contacts with fabric face with the speed controlling oil droplet of 0.05mm/s, then restores to the original state, have recorded whole process with computer
The change of power, and read the oil-water separation fabric adhesion under water to oil droplet.Test result obtains this oil-water separation fabric to food
With the adhesion of oil less than 5 μ N, show that oil-water separation fabric of the present invention has the characteristic of low adhesion to edible oil.
Weighing the mixture (mass ratio is 3:7) of edible oil and water, high-speed stirred is allowed to uniformly mix, and utilizes the present invention to carry
The oily-water seperating equipment of confession carries out oil-water separation.Oil water mixture after stirring is poured into above tubulose water feed apparatus 1, passes through
The oil-water separation fabric 3 of tubulose water feed apparatus 1 lower opening carries out oil-water separation, under water passes oil-water separation fabric 3 and flows into
The filtrate reception device 4 of side, and the blocked upper end at oil-water separation fabric 3 of edible oil, test result obtains oil-water separation efficiency
It is 97%, illustrates that superhydrophilic superoleophobic oil-water separation fabric of the present invention has good oil-water separation efficiency, energy to edible oil
Enough edible oil is carried out oil-water separation more thoroughly.
Embodiment 4:
The preparation method using the present invention to provide in the present embodiment prepares oil-water separation fabric, as shown in Figure 6, specifically includes
Following step:
(1), under room temperature, weigh 3ml butyl titanate and pour in beaker, add 15ml dehydrated alcohol, add after stirring
Enter 3ml glacial acetic acid regulation pH magnetic agitation 5 hours.
(2) weigh 15ml dehydrated alcohol and 15ml ultra-pure water, slowly pour into after mixing in step (1) just in magnetic agitation
In solution, seal after mixing and continue to stir 0.5 hour.Gained solution is sealed, is aged 72h, stand-by.
(3) fabric is put in the aged solution in step (2), soak 24 hours.48 it are dried at room temperature for little after taking-up
Time obtain the oil-water separation fabric of the superhydrophilic superoleophobic being modified with titanium oxygen compound of the present invention.
SEM characterization result shows, titanium oxygen compound is modified significantly in fabric face, and with the fabric of unmodified carry out right
Ratio, what the oil-water separation fabric of the superhydrophilic superoleophobic being modified with titanium oxygen compound at gained was measured water droplet in air sprawls speed
Degree, records water droplet and sprawls completely, be i.e. complete wetting, complete in spreading over 100ms completely, and contact angle is 0 °.
Edible oil drop is suspended on the ring that copper wire is made, this oil-water separation fabric adhesion to edible oil of subaqueous survey
Power, contacts with fabric face with the speed controlling oil droplet of 0.05mm/s, then restores to the original state, have recorded whole process with computer
The change of power, and read the oil-water separation fabric adhesion under water to oil droplet.Test result obtains this oil-water separation fabric to food
With the adhesion of oil less than 5 μ N, show that oil-water separation fabric of the present invention has the characteristic of low adhesion to edible oil.
Weighing the mixed liquor (mass ratio is 3:7) of edible oil and water, high-speed stirred is allowed to uniformly mix, and utilizes the present invention to carry
The oily-water seperating equipment of confession carries out oil-water separation.Oil water mixture after stirring is poured into above tubulose water feed apparatus 1, passes through
The oil-water separation fabric 3 of tubulose water feed apparatus 1 lower opening carries out oil-water separation, under water passes oil-water separation fabric 3 and flows into
The filtrate reception device 4 of side, and the blocked upper end at oil-water separation fabric 3 of edible oil, test result obtains oil-water separation efficiency
It is 97%, illustrates that superhydrophilic superoleophobic oil-water separation fabric of the present invention has good oil-water separation efficiency, energy to edible oil
Enough edible oil is carried out oil-water separation more thoroughly.
Use the oil-water separation fabric prepared in embodiment 1, test its adhesion characteristics to gasoline, and to gasoline
With the separating effect of the mixed liquor of water, specific as follows:
Gasoline drop is suspended on the ring that copper wire is made, this oil-water separation fabric adhesion to gasoline of subaqueous survey,
Contact with fabric face with the speed controlling oil droplet of 0.05mm/s, then restore to the original state, have recorded whole process power with computer
Change, and read the oil-water separation fabric adhesion under water to oil droplet.Test result obtains this oil-water separation fabric to gasoline
Adhesion less than 2 μ N, show that oil-water separation fabric of the present invention has the characteristic of low adhesion to gasoline.
Weighing the mixed liquor (mass ratio is 7:3) of gasoline and water, high-speed stirred is allowed to uniformly mix, and utilizes the present invention to provide
Oily-water seperating equipment carry out oil-water separation.Oil-water mixture after stirring is poured into above tubulose water feed apparatus 1, Jing Guoguan
The oil-water separation fabric 3 of shape water feed apparatus 1 lower opening carries out oil-water separation, and water is through oil-water separation fabric 3 and flows into lower section
Filtrate receive device 4, and the blocked upper end at oil-water separation fabric 3 of gasoline, test result obtains oil-water separation efficiency and is
99%, illustrate that superhydrophilic superoleophobic oil-water separation fabric of the present invention has good oil-water separation efficiency to gasoline, it is possible to right
Gasoline carries out oil-water separation more thoroughly.
Use the oil-water separation fabric prepared in embodiment 1, test its adhesion characteristics to liquid paraffin, and right
The separating effect of the mixed liquor of liquid paraffin and water, specific as follows:
Being suspended on the ring that copper wire is made by liquid paraffin drop, this oil-water separation fabric of subaqueous survey is to liquid paraffin
Adhesion, contacts with oil-water separation fabric face with the speed controlling oil droplet of 0.05mm/s, then restores to the original state, remember with computer
Record the change of whole process power, and read the oil-water separation fabric adhesion under water to oil droplet.Test result obtains this profit
Separate fabric and the adhesion of liquid paraffin is less than 2 μ N, show that liquid paraffin is had low by oil-water separation fabric of the present invention
The characteristic adhered to.
Weighing the mixed liquor (mass ratio is 7:3) of liquid paraffin and water, high-speed stirred is allowed to uniformly mix, and utilizes the present invention
The oily-water seperating equipment provided carries out oil-water separation.Oil-water mixture after stirring is poured into above tubulose water feed apparatus 1, warp
The oil-water separation fabric 3 crossing perforate below tubulose water feed apparatus 1 carries out oil-water separation, and water is through oil-water separation fabric 3 and flows into
The filtrate reception device 4 of lower section, and the blocked upper end at oil-water separation fabric 3 of liquid paraffin, test result obtains oil-water separation
Efficiency is 98%, illustrates that superhydrophilic superoleophobic oil-water separation fabric of the present invention has good oil-water separation to liquid paraffin
Efficiency, it is possible to liquid paraffin is carried out oil-water separation more thoroughly.
The oil-water separation fabric with super hydrophilic and the most superoleophobic character of the present invention is to be with aperture diameter time dry
Arranging fabric that is tight and that be similar to atresia after 50-100 μm, infiltration is substrate, and this fabric substrate is dry after modifying titanium oxygen compound
After time dry, aperture diameter is 20～50 μm (see figure 1)s, infiltration, arrangement closely and is similar to atresia, and can substantially observe microcosmic
Structural modification is in fabric face (see figure 2).This fabric can knitted as quick as thought for water droplet after hydrophobic (see figure 3), modification before modification
Sprawling on thing, Fig. 4 is picture during 100ms after water drop contact fabric.The present invention uses butyl titanate to prepare titanium oxygen compound
Solution, with gained titanium oxygen compound solution soaking fabric after ageing a couple of days, obtains being modified with the fabric of titanium oxygen compound, i.e. this
The bright oil-water separation fabric with super hydrophilic character and superoleophobic character, water droplet can be as quick as thought on gained oil-water separation fabric
Sprawl completely, complete in spreading over 100ms completely.
Claims (5)
1. a preparation method for the oil-water separation fabric with hydrophilic oleophobic properties that titanium oxygen compound is modified, its feature exists
In: described preparation method comprises the following steps:
(1) weighing volume ratio for (1:5)～the butyl titanate of (1:10) and dehydrated alcohol reagent, stirring is allowed to uniformly mix；
Continuously adding glacial acetic acid wherein, glacial acetic acid and butyl titanate volume ratio are 1:1～3:1, stir 1～5 hour, and this is solution
A；
(2) and by water mixing with dehydrated alcohol, this is solution B；The volume of described water is according to water and metatitanic acid four fourth in step (1)
Ester volume ratio is that the ratio of 5:1～10:1 weighs；Water in solution B: dehydrated alcohol volume ratio is 1:1～1:10；
Seal after slowly pouring solution B, solution A and solution B mixing in solution A into, continue stirring 0.5～3 hour；Seal
Standing after stirring, ageing is 12～120 hours, stand-by；
(3) being put into by fabric in the aged solution in step (2), soak 1～24 hour, it is little that taking-up is dried at room temperature for 5～48
Time, obtain being modified with the oil-water separation fabric of the superhydrophilic superoleophobic of titanium oxygen compound；
Described oil-water separation fabric has Fabric mesh and the nano thickness of the composite construction of nanometer and micron, i.e. micrometer structure
Titanium oxygen compound clad；Oil-water separation fabric has Superhydrophilic in atmosphere and under water, and has oil droplet superoleophobic
Property, and under water oil is had the adhesion less than 5 μ N；Water droplet spreads over complete in 100ms on oil-water separation fabric completely, right
The contact angle of water droplet is 0 °；Described fabric is cotton, linen, bamboo fibre or polyvinyl.
The oil-water separation fabric with hydrophilic oleophobic properties that a kind of titanium oxygen compound the most according to claim 1 is modified
Preparation method, it is characterised in that: when described fabric substrate is dried, aperture diameter is 50～100 μm, dry after modifying titanium oxygen compound
Time dry, aperture diameter is 20～50 μm.
3. the oil-water separation fabric with hydrophilic oleophobic properties that a titanium oxygen compound is modified, it is characterised in that: this profit divides
Using the preparation method described in claim 1 to obtain from fabric, described oil-water separation fabric has the compound of nanometer and micron
The Fabric mesh of structure, i.e. micrometer structure and the titanium oxygen compound clad of nano thickness；Oil-water separation fabric in atmosphere and
There is Superhydrophilic under water, and oil droplet is had superoleophobic property, and under water oil is had the adhesion less than 5 μ N；Water droplet is complete
Entirely spreading over and complete in 100ms on oil-water separation fabric, the contact angle to water droplet is 0 °.
4. the profit of the oil-water separation fabric with hydrophilic oleophobic properties modified based on the titanium oxygen compound described in claim 3
Segregation apparatus, it is characterised in that: the oily-water seperating equipment required for preparation includes that tubulose water feed apparatus, support means, profit divide
Receiving device from fabric and filtrate, described tubulose water feed apparatus is fixed on described filtrate by support means and receives above device,
Described oil-water separation fabric is fixed on described tubulose water feed apparatus bottom；Oil-water mixture is poured into above tubulose water feed apparatus
After, water filters in the filtrate reception device that oil-water separation fabric flows to lower section, and oil is blocked on above oil-water separation fabric simultaneously
Tubulose water feed apparatus in.
The use of the oil-water separation fabric with hydrophilic oleophobic properties that titanium oxygen compound the most according to claim 3 is modified
On the way, it is characterised in that: use the oily-water seperating equipment described in claim 4, to oil-containing mass percent concentration be 30%～
The edible oil of 70%, gasoline, the oil water mixture of liquid paraffin carry out oil-water separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150092.1A CN103952903B (en) | 2014-04-15 | 2014-04-15 | The Preparation method and use of the oil-water separation fabric with hydrophilic oleophobic properties that titanium oxygen compound is modified |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150092.1A CN103952903B (en) | 2014-04-15 | 2014-04-15 | The Preparation method and use of the oil-water separation fabric with hydrophilic oleophobic properties that titanium oxygen compound is modified |
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| Publication Number | Publication Date |
|---|---|
| CN103952903A CN103952903A (en) | 2014-07-30 |
| CN103952903B true CN103952903B (en) | 2016-10-05 |
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| CN105641973A (en) * | 2016-01-25 | 2016-06-08 | 四川大学 | Preparation method of nano-structure oil-water separation net membrane with self-cleaning and underwater super-oleophobic characteristics |
| CN106271419A (en) * | 2016-08-26 | 2017-01-04 | 长春理工大学 | The most superoleophobic titanium alloy and the preparation method of aluminum alloy surface |
| CN110917896A (en) * | 2019-12-04 | 2020-03-27 | 中国矿业大学 | Preparation method of composite filter membrane capable of selectively filtering low-density lipoprotein in hyperlipemia blood |
| CN111449081A (en) * | 2020-04-30 | 2020-07-28 | 湖南伊湘服饰有限公司 | Antibacterial material for clothes and preparation method thereof |
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