CN107261867B - A kind of preparation method of super water-purifying filter film - Google Patents
A kind of preparation method of super water-purifying filter film Download PDFInfo
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- CN107261867B CN107261867B CN201710681727.4A CN201710681727A CN107261867B CN 107261867 B CN107261867 B CN 107261867B CN 201710681727 A CN201710681727 A CN 201710681727A CN 107261867 B CN107261867 B CN 107261867B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The present invention relates to a kind of preparation methods of super water-purifying filter film, belong to field of environment engineering.A certain proportion of active carbon particle is added in the macromolecule material solution for being dissolved in organic solvent in preparation method of the invention, controls ice-crystal growth direction using orientation freezing technology, forms regular structure.Water phase macromolecule material solution after freezing is freeze-dried under vacuum low-temperature environment forms doughnut array structure, improves filter efficiency.Organic solvent selects the organic solvent of high freezing point in the present invention, greatly shortens freeze-off time, avoids the loss of the energy, and preparation method simple process and low cost of the invention；The super water-purifying filter film of the absorption property preparation of the method for the present invention combination active carbon has uniform aperture, can be widely applied to the fields such as chemical industry, petroleum, light industry, daily use chemicals.
Description
Technical field
The present invention relates to a kind of preparation methods of super water-purifying filter film, belong to field of environment engineering.
Background technique
Active carbon is a kind of black porosu solid carbonaceous, by coal by crushing, forming or with uniform coal grain through charcoal, activation
Production.The specific surface area of normal activated carbon is in 500~1700m2/ g has very strong absorption property, extensive use and purification of water quality
Field can effectively adsorb the chemical agents such as chlorine residue in water, stink, heterochromatic, pesticide；Accurate active carbon filter core, can be effective
Remove bacterium, toxin, the heavy metal etc. in water removal.
Currently, causing the concern of vast domestic and international research work about research of the active carbon in terms of water purification.Such as patent one
Kind plastic antibacterial foaming activity charcoal water purification catridge and preparation method, the invention is by cresols urea formaldehyde, curing agent, anion table
Face activating agent, antibacterial agent and foaming agent are blended by a certain percentage, finally obtain antibacterial foaming activity charcoal water purification catridge, the filter core phase
The high purifying water effect of intercommunicated open cell porous structure.But a large amount of chemical reagent is added in the patent production technology, once make
Possible permanent damage can be caused to environment with after discarding, and process is complex, therefore causes the increase of production cost.
Chinese patent disclosed on 07 10th, 2015: a kind of activated carbon filter filter core, it includes cutting ferrule and active carbon
Stick core；It is not machined with through-hole on cutting ferrule ontology, processes the holding tank of installation active carbon stick core in its underpart；In order to enhance its structure
Intensity, outside is respectively provided with nonwoven layer in active carbon stick.Water flow enters on the outside of active carbon stick core, after filtering water flow from
It is flowed out in through-hole, has obtained effective purification.The activated carbon filter filter element device of the patented invention is complicated, is unfavorable for practical life
Use living, simultaneously because the active carbon limited absorption service life, once very big waste can be generated to resource by abandoning.
Chinese invention patent: anion sintering activity charcoal water purification catridge and preparation method thereof, the inventive method will be by that will live
Property powdered carbon, anion composite powder, polyethylene, sodium metasilicate are blended according to a certain percentage, then obtain compression moulding blank sintering
Water purification catridge.The water purification catridge is due to introducing anion composite powder, so that reference magnetic water, molten with other without any minerals
Object out improves water purification efficiency.But the preparation process of the filter core uses a large amount of chemical reagent, and is sintered, and wastes energy
The adsorptivity that active carbon itself can be weakened while source in sintering process reduces active carbon water purification ability.
Summary of the invention
There are problems for above-mentioned, and the purpose of the present invention is to provide a kind of water phase high molecular material doughnut array materials
The preparation method of material, to achieve the above object, technical solution of the present invention:
A kind of preparation method of super water-purifying filter film, the preparation method sequentially include the following steps:
A. high molecular material/Actidose preparation
High molecular material is added in dimethyl sulfoxide or Isosorbide-5-Nitrae-dioxane, by stirring until being completely dissolved, Xiang Rong
Liquid, which is added active carbon and stirs 1~4h, is placed on 2~5h in the environment that vacuum degree is 0.05~0.1MPa, removes the gas in solution
It steeps to get high molecular material/Actidose is arrived.
Wherein, the high molecular material is polyurethane or one of polyacrylonitrile or polylactic acid.
The specification of the active carbon is 800~900 mesh.
The mass ratio of the active carbon and high molecular material is 1:1~2:1.
High molecular material/Actidose mass fraction is 4~6%.
B. high molecular material/activated carbon bodies preparation
By stent putting above metallic conductor, metallic conductor is immersed in liquid nitrogen, then the macromolecule that will be prepared through a step
Material/Actidose pours into mold, forms the solution layer that height is 5~10mm in a mold,
Under the action of liquid nitrogen cryogenics, high molecular material/Actidose in mold along mold vertical direction by down toward
On be slowly formed by curing using organic solvent crystal as core, high molecular material and active carbon are the column body unit of skin, and adjacent list
High molecular material/activated carbon bodies green body in co-walled face between first body takes out green body from mold, spare.
Wherein, mold is the perforation column that wall thickness made of polytetrafluoroethylene material is 3~10mm.
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -55~-65 DEG C and vacuum degree be 2~5Pa in the environment of freeze
It is dry, the core in green body cylindrical body unit is removed, is formed with aperture as 30~100 μm, the hollow tube that wall thickness is 1~5 μm,
And between adjacent hollow pipe co-walled face array structure, super water-purifying filter film is obtained after 24~36h.
The metallic conductor is copper conductor or one of aluminium conductor or silver conductor.
Due to using above technical scheme, the present invention can effectively adsorb chlorine residue in water, smelly in preparation process addition
The chemical agents active carbon particle such as taste, heterochromatic, pesticide；Further, since the adsorption effect of active carbon and its partial size have close ties,
As partial size is smaller, filter area is also big, and adsorption effect is better, and therefore, the specification of active carbon is 800~900 mesh.Poly- ammonia
These three high molecular material materials of ester, polyacrylonitrile and polylactic acid have good chemical stability, can extend filter material
The service life of material.
Preparation method of the invention induces ice-crystal growth using orientation freezing technology, and mold is placed on metallic conductor block,
Metallic conductor is immersed in liquid nitrogen, the open upper end of mold, and the low temperature of liquid nitrogen, the height in mold are transmitted by lower end metallic conductor
Molecular material/Actidose slowly solidifies from the bottom to top along mold vertical direction, and high molecular material/active carbon is fixed in solution
Aggregation rearrangement is carried out under repelling to the pushing of growth solidification ice crystal, is ultimately formed using organic solvent crystal as core, water phase macromolecule
Material be skin column body unit, and between adjacent cells body the doughnut array structure in co-walled face green body, curing molding
Green body afterwards makes the sandwich layer in each unit body directly distil removal under low-pressure low-temperature environment, that is, obtain with aperture be 30~
100 μm, wall thickness is 1~5 μm of doughnut, and between adjacent hollow fiber the array structure in co-walled face super water purification filter
Film.
In order to avoid ambient temperature has an impact freezing solution, to guarantee the final integrality of material, mold
Material selection is the polytetrafluoroethylene material of heating conduction difference and has certain wall thickness.In addition, in order to enable solution
Freeze within a short period of time, reduce the excessive waste of the energy, the column of mold selection perforation facilitates metallic conductor in this way
It is directly contacted with solution；Metallic conductor selects the preferable copper of thermal coefficient, aluminium or silver；Organic solvent selection has high chill point
Dimethyl sulfoxide or Isosorbide-5-Nitrae-dioxane in one of which.The solution layer height that solution is formed in a mold is 5~10mm,
The super water-purifying filter film for ultimately forming 5~10mm thickness, the super water purification filter formed when solution layer height is lower in freezing process
Film dynamic performance is poor, when solution layer height is higher, is unfavorable for solution quick freezing, wastes a large amount of energy, and work as solution
When thickness is spent, final water purification film thickness is thicker, substantially reduces its filter effect, therefore the height of solution is finally 5 in a mold
Between~10mm.
For solution in course of dissolution since stirring can generate a large amount of bubble, bubble destroys array structure in freezing process,
Therefore solution needs bubble removing before orientation is freezed, and is mainly realized by the method for vacuum defoamation.The solution being stirred is set
Deaeration processing is carried out in the environment of vacuum degree is 0.05~0.1MPa, in order to sufficiently remove the bubble in solution, according to solution
The difference of the mass fraction of middle high molecular material/activated carbon bodies, under environment under low pressure, the time of standing is 2~5 hours.
In the forming process of green body, with the increase of high molecular material/activated carbon bodies mass fraction in solution, in
Empty array structure is more clear, but its aperture is gradually reduced, and wall thickness increases, therefore the controllable aperture of method simple whereby is big
It is small, meet different places requirement.Increase however as high molecular material/activated carbon bodies mass fraction in solution, it is molten
The viscosity of liquid is gradually increasing, and viscosity is excessive, and the organic solvent crystal that oriented growth solidifies in freezing process does not have sufficiently large
The high molecular material for squeezing and repelling in solution is pushed, so that it is carried out aggregation rearrangement, finally formed hole gradually tends to closed state, becomes
It will affect filter effect in use in the hole of closure.Therefore, the quality of high molecular material/activated carbon bodies mass fraction point
Number control is 4~6%.Wherein, the mass ratio of active carbon and high molecular material is 1:1~2:1, when activated carbon content is less,
Adsorption effect is not obvious enough, but when the content of active carbon it is higher when, a large amount of active carbon blocking gap lead to liquid can not
It crosses, reduces filter effect.
Preparation method of the invention is using orientation freezing technology induction ice-crystal growth and Freeze Drying Technique, technique letter
It is single, it is at low cost, it not will cause the waste of resource and the pollution of environment.
Specific embodiment
Present invention is further described in detail combined with specific embodiments below:
Active carbon has very strong absorption property, extensive use and purification of water quality as a kind of black porosu solid carbonaceous
Field can effectively adsorb the chemical agents such as chlorine residue in water, stink, heterochromatic, pesticide；Accurate active carbon filter core, can be effective
Remove bacterium, toxin, the heavy metal etc. in water removal.It orients freezing technology and induces ice-crystal growth, removed under low-temp low-pressure environment molten
Agent composition forms highly oriented doughnut array structure, so that high molecular material material has biggish specific surface area, therefore has
There are preferable adsorptivity and water imbibition.
A kind of preparation method of super water-purifying filter film, the preparation method sequentially include the following steps:
A. high molecular material/Actidose preparation
By one of these three high molecular materials in polyurethane or polyacrylonitrile or polylactic acid be added to dimethyl sulfoxide or
In Isosorbide-5-Nitrae-dioxane, by stirring until be completely dissolved, with the mass ratio of active carbon and high molecular material for 1:1~2:1 to
The active carbon that specification is 800~900 mesh is added in solution and stirs 1~4h and is placed on the environment that vacuum degree is 0.05~0.1MPa
In 2~5h, remove solution in bubble to get to mass fraction be 4~6% high molecular material/Actidose.
B. high molecular material/activated carbon bodies preparation
By perforation column stent putting that the wall thickness made of polytetrafluoroethylene material is 3~10mm by copper or aluminium or
The top of metallic conductor made of silver, metallic conductor are immersed in liquid nitrogen, then the high molecular material/activity that will be prepared through a step
Charcoal solution pours into mold, the solution layer that height is 5~10mm is formed in a mold, under the action of liquid nitrogen cryogenics, in mold
High molecular material/Actidose be slowly formed by curing from the bottom to top along mold vertical direction using organic solvent crystal as core,
High molecular material and active carbon are the column body unit of skin, and between adjacent cells body co-walled face high molecular material/active carbon
The green body of green body takes out green body from mold, spare.
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -55~-65 DEG C and vacuum degree be 2~5Pa in the environment of freeze
It is dry, the core in green body cylindrical body unit is removed, is formed with aperture as 30~100 μm, the hollow tube that wall thickness is 1~5 μm,
And between adjacent hollow pipe co-walled face array structure, super water-purifying filter film is obtained after 24~36h.
Specific embodiment
Embodiment one
A. polyurethane/Actidose preparation
The polyurethane of 2g is added in the dimethyl sulfoxide of 96g, by stirring until being completely dissolved, 2g is added into solution
Specification is the active carbon of 800 mesh and to stir 1h to be placed on vacuum degree be 2h in the environment of 0.05MPa, removes the bubble in solution,
Obtain polyurethane/Actidose that mass fraction is 4%.
B. polyurethane/activated carbon bodies preparation
By the wall thickness made of polytetrafluoroethylene material be 3mm perforation column stent putting by copper or aluminium or silvery
At metallic conductor top, metallic conductor is immersed in liquid nitrogen, then the high molecular material/active carbon prepared through a step is molten
Liquid pours into mold, forms the solution layer that height is 5mm in a mold, under the action of liquid nitrogen cryogenics, polyurethane in mold/
Actidose is slowly formed by curing from the bottom to top using dimethyl sulfoxide crystal as core along mold vertical direction, polyurethane and active carbon
For the column body unit of skin, and between adjacent cells body co-walled face polyurethane/activated carbon bodies green body, by green body from mold
It takes out, it is spare.
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -55 DEG C and vacuum degree be 5Pa in the environment of be freeze-dried, go
Except the core in green body cylindrical body unit, formed with aperture as 70~100 μm, the hollow tube that wall thickness is 1~2 μm, and it is adjacent in
The array structure in co-walled face between blank pipe obtains super water-purifying filter film after 36h.
Embodiment two
A. polyurethane/Actidose preparation
The polyurethane of 2g is added in Isosorbide-5-Nitrae-dioxane of 95g, by stirring until being completely dissolved, is added into solution
Entering the active carbon that 3g specification is 850 mesh and stirring 2.5h to be placed on vacuum degree is 3h in the environment of 0.07MPa, is removed in solution
Bubble is to get the polyurethane/Actidose for being 5% to mass fraction.
B. polyurethane/activated carbon bodies preparation
By the wall thickness made of polytetrafluoroethylene material be 7mm perforation column stent putting by copper or aluminium or silvery
At metallic conductor top, metallic conductor is immersed in liquid nitrogen, then the high molecular material/active carbon prepared through a step is molten
Liquid pours into mold, forms the solution layer that height is 7mm in a mold, under the action of liquid nitrogen cryogenics, polyurethane in mold/
Actidose is slowly formed by curing polyurethane and work using Isosorbide-5-Nitrae-dioxane crystal as core along mold vertical direction from the bottom to top
Property charcoal be skin column body unit, and between adjacent cells body co-walled face polyurethane/activated carbon bodies green body, by green body from
Mold takes out, spare.
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -60 DEG C and vacuum degree be 3Pa in the environment of be freeze-dried, go
Except the core in green body cylindrical body unit, formed with aperture as 50~70 μm, the hollow tube that wall thickness is 2~3 μm, and adjacent hollow
The array structure in co-walled face between pipe obtains super water-purifying filter film after 30h.
Embodiment three
A. polyurethane/Actidose preparation
The polyurethane of 2g is added in the dimethyl sulfoxide of 94g, by stirring until being completely dissolved, 4g is added into solution
Specification is the active carbon of 900 mesh and to stir 4h to be placed on vacuum degree be 5h in the environment of 0.1MPa, removes the bubble in solution, i.e.,
Obtain polyurethane/Actidose that mass fraction is 6%.
B. polyurethane/activated carbon bodies preparation
By the wall thickness made of polytetrafluoroethylene material be 10mm perforation column stent putting by copper or aluminium or silver
The top of manufactured metallic conductor, metallic conductor are immersed in liquid nitrogen, then the high molecular material/active carbon that will be prepared through a step
Solution pours into mold, forms the solution layer that height is 10mm, poly- ammonia under the action of liquid nitrogen cryogenics, in mold in a mold
Ester/Actidose is slowly formed by curing polyurethane and work using dimethyl sulfoxide crystal as core along mold vertical direction from the bottom to top
Property charcoal be skin column body unit, and between adjacent cells body co-walled face polyurethane/activated carbon bodies green body, by green body from
Mold takes out, spare.
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -65 DEG C and vacuum degree be 2Pa in the environment of be freeze-dried, go
Except the core in green body cylindrical body unit, formed with aperture as 30~50 μm, the hollow tube that wall thickness is 3~5 μm, and adjacent hollow
The array structure in co-walled face between pipe obtains super water-purifying filter film afterwards for 24 hours.
Example IV
A. polyacrylonitrile/Actidose preparation
The polyacrylonitrile of 2g is added in Isosorbide-5-Nitrae-dioxane of 96g, by stirring until being completely dissolved, into solution
It is added that 2g specification is the active carbon of 800 mesh and to stir 1h to be placed on vacuum degree be 2h in the environment of 0.05MPa, removes in solution
Bubble is to get the polyacrylonitrile/Actidose for being 4% to mass fraction.
B. polyacrylonitrile/activated carbon bodies preparation
By the wall thickness made of polytetrafluoroethylene material be 3mm perforation column stent putting by copper or aluminium or silvery
At metallic conductor top, metallic conductor is immersed in liquid nitrogen, then the high molecular material/active carbon prepared through a step is molten
Liquid pours into mold, forms the solution layer that height is 5mm, polypropylene under the action of liquid nitrogen cryogenics, in mold in a mold
Nitrile/Actidose is slowly formed by curing from the bottom to top using Isosorbide-5-Nitrae-dioxane crystal as core along mold vertical direction, polypropylene
Nitrile and active carbon are the column body unit of skin, and between adjacent cells body co-walled face polyacrylonitrile/activated carbon bodies green body,
Green body is taken out from mold, it is spare.
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -55 DEG C and vacuum degree be 5Pa in the environment of be freeze-dried, go
Except the core in green body cylindrical body unit, formed with aperture as 70~100 μm, the hollow tube that wall thickness is 1~2 μm, and it is adjacent in
The array structure in co-walled face between blank pipe obtains super water-purifying filter film after 36h.
Embodiment five
A. polyacrylonitrile/Actidose preparation
The polyacrylonitrile of 2g is added in the dimethyl sulfoxide of 95g, by stirring until being completely dissolved, is added into solution
3g specification is the active carbon of 850 mesh and to stir 2.5h to be placed on vacuum degree be 3h in the environment of 0.07MPa, removes the gas in solution
It steeps to get the polyacrylonitrile/Actidose for being 5% to mass fraction.
B. polyacrylonitrile/activated carbon bodies preparation
By the wall thickness made of polytetrafluoroethylene material be 7mm perforation column stent putting by copper or aluminium or silvery
At metallic conductor top, metallic conductor is immersed in liquid nitrogen, then the high molecular material/active carbon prepared through a step is molten
Liquid pours into mold, forms the solution layer that height is 7mm, polypropylene under the action of liquid nitrogen cryogenics, in mold in a mold
Nitrile/Actidose is slowly formed by curing from the bottom to top using dimethyl sulfoxide crystal as core along mold vertical direction, polyacrylonitrile and
Active carbon be skin column body unit, and between adjacent cells body co-walled face polyacrylonitrile/activated carbon bodies green body, by base
Body takes out from mold, spare.
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -60 DEG C and vacuum degree be 3Pa in the environment of be freeze-dried, go
Except the core in green body cylindrical body unit, formed with aperture as 50~70 μm, the hollow tube that wall thickness is 2~3 μm, and adjacent hollow
The array structure in co-walled face between pipe obtains super water-purifying filter film after 30h.
Embodiment six
A. polyacrylonitrile/Actidose preparation
The polyacrylonitrile of 2g is added in Isosorbide-5-Nitrae-dioxane of 94g, by stirring until being completely dissolved, into solution
It is added that 4g specification is the active carbon of 900 mesh and to stir 4h to be placed on vacuum degree be 5h in the environment of 0.1MPa, removes in solution
Bubble is to get the polyacrylonitrile/Actidose for being 6% to mass fraction.
B. polyacrylonitrile/activated carbon bodies preparation
By the wall thickness made of polytetrafluoroethylene material be 10mm perforation column stent putting by copper or aluminium or silver
The top of manufactured metallic conductor, metallic conductor are immersed in liquid nitrogen, then the high molecular material/active carbon that will be prepared through a step
Solution pours into mold, in a mold formed height be 10mm solution layer, under the action of liquid nitrogen cryogenics, in mold poly- third
Alkene nitrile/Actidose is slowly formed by curing from the bottom to top using Isosorbide-5-Nitrae-dioxane crystal as core along mold vertical direction, and poly- third
Alkene nitrile and active carbon are the column body unit of skin, and between adjacent cells body co-walled face polyacrylonitrile/activated carbon bodies base
Body takes out green body from mold, spare.
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -65 DEG C and vacuum degree be 2Pa in the environment of be freeze-dried, go
Except the core in green body cylindrical body unit, formed with aperture as 30~50 μm, the hollow tube that wall thickness is 3~5 μm, and adjacent hollow
The array structure in co-walled face between pipe obtains super water-purifying filter film afterwards for 24 hours.
Embodiment seven
A. polylactic acid/Actidose preparation
The polylactic acid of 2g is added in the dimethyl sulfoxide of 96g, by stirring until being completely dissolved, 2g is added into solution
Specification is the active carbon of 800 mesh and to stir 1h to be placed on vacuum degree be 2h in the environment of 0.05MPa, removes the bubble in solution,
Obtain polylactic acid/Actidose that mass fraction is 4%.
B. polylactic acid/activated carbon bodies preparation
By the wall thickness made of polytetrafluoroethylene material be 3mm perforation column stent putting by copper or aluminium or silvery
At metallic conductor top, metallic conductor is immersed in liquid nitrogen, then the high molecular material/active carbon prepared through a step is molten
Liquid pours into mold, forms the solution layer that height is 5mm in a mold, under the action of liquid nitrogen cryogenics, polylactic acid in mold/
Actidose is slowly formed by curing from the bottom to top using dimethyl sulfoxide crystal as core along mold vertical direction, polylactic acid and active carbon
For the column body unit of skin, and between adjacent cells body co-walled face polylactic acid/activated carbon bodies green body, by green body from mold
It takes out, it is spare.
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -55 DEG C and vacuum degree be 5Pa in the environment of be freeze-dried, go
Except the core in green body cylindrical body unit, formed with aperture as 70~100 μm, the hollow tube that wall thickness is 1~2 μm, and it is adjacent in
The array structure in co-walled face between blank pipe obtains super water-purifying filter film after 36h.
Embodiment eight
A. polylactic acid/Actidose preparation
The polylactic acid of 2g is added in Isosorbide-5-Nitrae-dioxane of 95g, by stirring until being completely dissolved, is added into solution
Entering the active carbon that 3g specification is 850 mesh and stirring 2.5h to be placed on vacuum degree is 3h in the environment of 0.07MPa, is removed in solution
Bubble is to get the polylactic acid/Actidose for being 5% to mass fraction.
B. polylactic acid/activated carbon bodies preparation
By the wall thickness made of polytetrafluoroethylene material be 7mm perforation column stent putting by copper or aluminium or silvery
At metallic conductor top, metallic conductor is immersed in liquid nitrogen, then the high molecular material/active carbon prepared through a step is molten
Liquid pours into mold, forms the solution layer that height is 7mm in a mold, under the action of liquid nitrogen cryogenics, polylactic acid in mold/
Actidose is slowly formed by curing polylactic acid and work using Isosorbide-5-Nitrae-dioxane crystal as core along mold vertical direction from the bottom to top
Property charcoal be skin column body unit, and between adjacent cells body co-walled face polylactic acid/activated carbon bodies green body, by green body from
Mold takes out, spare.
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -60 DEG C and vacuum degree be 3Pa in the environment of be freeze-dried, go
Except the core in green body cylindrical body unit, formed with aperture as 50~70 μm, the hollow tube that wall thickness is 2~3 μm, and adjacent hollow
The array structure in co-walled face between pipe obtains super water-purifying filter film after 30h.
Embodiment nine
A. polylactic acid/Actidose preparation
The polylactic acid of 2g is added in the dimethyl sulfoxide of 94g, by stirring until being completely dissolved, 4g is added into solution
Specification is the active carbon of 900 mesh and to stir 4h to be placed on vacuum degree be 5h in the environment of 0.1MPa, removes the bubble in solution, i.e.,
Obtain polylactic acid/Actidose that mass fraction is 6%.
B. polylactic acid/activated carbon bodies preparation
By the wall thickness made of polytetrafluoroethylene material be 10mm perforation column stent putting by copper or aluminium or silver
The top of manufactured metallic conductor, metallic conductor are immersed in liquid nitrogen, then the high molecular material/active carbon that will be prepared through a step
Solution pours into mold, forms the solution layer that height is 10mm, poly- cream under the action of liquid nitrogen cryogenics, in mold in a mold
Acid/Actidose is slowly formed by curing polylactic acid and work using dimethyl sulfoxide crystal as core along mold vertical direction from the bottom to top
Property charcoal be skin column body unit, and between adjacent cells body co-walled face polylactic acid/activated carbon bodies green body, by green body from
Mold takes out, spare.
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -65 DEG C and vacuum degree be 2Pa in the environment of be freeze-dried, go
Except the core in green body cylindrical body unit, formed with aperture as 30~50 μm, the hollow tube that wall thickness is 3~5 μm, and adjacent hollow
The array structure in co-walled face between pipe obtains super water-purifying filter film afterwards for 24 hours.
Claims (2)
1. a kind of preparation method of super water-purifying filter film, which is characterized in that the preparation method sequentially includes the following steps:
A. high molecular material/Actidose preparation
High molecular material is added in dimethyl sulfoxide or Isosorbide-5-Nitrae-dioxane, by stirring until be completely dissolved, to solution plus
Enter active carbon and stir 1~4h and be placed on 2~5h in the environment that vacuum degree is 0.05~0.1MPa, removes the bubble in solution,
Obtain high molecular material/Actidose；
Wherein, the high molecular material is polyurethane or one of polyacrylonitrile or polylactic acid；
The specification of the active carbon is 800~900 mesh；
The mass ratio of the active carbon and high molecular material is 1:1~2:1；
High molecular material/Actidose mass fraction is 4~6%；
B. high molecular material/activated carbon bodies preparation
By stent putting above metallic conductor, metallic conductor is immersed in liquid nitrogen, then the macromolecule material that will be prepared through a step
Material/Actidose pours into mold, forms the solution layer that height is 5~10mm in a mold, under the action of liquid nitrogen cryogenics,
High molecular material/Actidose in mold is slowly formed by curing from the bottom to top along mold vertical direction with organic solvent crystal
For core, high molecular material and active carbon are the column body unit of skin, and between adjacent cells body co-walled face high molecular material/work
Property charcoal green body green body, by green body from mold take out, it is spare；
Wherein, mold is the perforation column that wall thickness made of polytetrafluoroethylene material is 3~10mm；
C. the preparation of super water-purifying filter film
By green body prepared by above-mentioned b step be placed in temperature be -55~-65 DEG C and vacuum degree be 2~5Pa in the environment of freeze it is dry
It is dry, the core in green body cylindrical body unit is removed, is formed with aperture as 30~100 μm, the hollow tube that wall thickness is 1~5 μm, and phase
The array structure in co-walled face between adjacent hollow tube obtains super water-purifying filter film after 24~36h.
2. a kind of preparation method of the preparation method of super water-purifying filter film as described in claim 1, it is characterised in that: the gold
Belonging to conductor is copper conductor or one of aluminium conductor or silver conductor.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367023A (en) * | 2002-03-08 | 2002-09-04 | 清华大学 | Preparation method of biodegradable medicine composite macromolecular scaffold material |
| CN101698605A (en) * | 2009-11-17 | 2010-04-28 | 哈尔滨工业大学 | Preparation method of gradient porous alumina ceramics |
| CN101785877A (en) * | 2010-04-07 | 2010-07-28 | 华中科技大学 | Method for preparing bionic composite material with lamellar multilevel structure |
| CN101824160A (en) * | 2010-03-30 | 2010-09-08 | 东华大学 | Preparation method of chitosan/polyvinyl alcohol/polylactic acid blended porous membrane |
| CN101829355A (en) * | 2010-04-07 | 2010-09-15 | 北京航空航天大学 | Hydrophilic extra-cellular matrix glycan/ hydrophobic aliphatic polyester composite material and preparation method thereof |
| CN103239757A (en) * | 2012-02-07 | 2013-08-14 | 上海纳米技术及应用国家工程研究中心有限公司 | Granulated high-molecular film, and preparation method and application thereof |
| CN103979522A (en) * | 2014-04-19 | 2014-08-13 | 东风商用车有限公司 | Macro body with multiple membrane layers separated into multiple regularly arranged pore channels and manufacturing method thereof |
| CN104530466A (en) * | 2015-01-21 | 2015-04-22 | 中国科学技术大学 | Freezing method of material with microcosmic lamellar structure |
| CN105934410A (en) * | 2013-12-20 | 2016-09-07 | 威立雅水务解决方案与技术支持公司 | Membrane water treatment facility and method incorporating adsorption on an adsorbent powdered material and means for limiting the abrasion of the membranes |
| CN106117610A (en) * | 2016-07-05 | 2016-11-16 | 昆明理工大学 | The preparation method of Semen Maydis full stalk regenerated cellulose active carbon nanoparticles pluralgel film |
| CN106362492A (en) * | 2016-09-28 | 2017-02-01 | 陕西科技大学 | Preparation method of cellulose-based biodegradable type air filtering material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008118228A2 (en) * | 2006-12-05 | 2008-10-02 | Stonybrook Water Purification | Articles comprising a fibrous support |
-
2017
- 2017-08-10 CN CN201710681727.4A patent/CN107261867B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367023A (en) * | 2002-03-08 | 2002-09-04 | 清华大学 | Preparation method of biodegradable medicine composite macromolecular scaffold material |
| CN101698605A (en) * | 2009-11-17 | 2010-04-28 | 哈尔滨工业大学 | Preparation method of gradient porous alumina ceramics |
| CN101824160A (en) * | 2010-03-30 | 2010-09-08 | 东华大学 | Preparation method of chitosan/polyvinyl alcohol/polylactic acid blended porous membrane |
| CN101785877A (en) * | 2010-04-07 | 2010-07-28 | 华中科技大学 | Method for preparing bionic composite material with lamellar multilevel structure |
| CN101829355A (en) * | 2010-04-07 | 2010-09-15 | 北京航空航天大学 | Hydrophilic extra-cellular matrix glycan/ hydrophobic aliphatic polyester composite material and preparation method thereof |
| CN103239757A (en) * | 2012-02-07 | 2013-08-14 | 上海纳米技术及应用国家工程研究中心有限公司 | Granulated high-molecular film, and preparation method and application thereof |
| CN105934410A (en) * | 2013-12-20 | 2016-09-07 | 威立雅水务解决方案与技术支持公司 | Membrane water treatment facility and method incorporating adsorption on an adsorbent powdered material and means for limiting the abrasion of the membranes |
| CN103979522A (en) * | 2014-04-19 | 2014-08-13 | 东风商用车有限公司 | Macro body with multiple membrane layers separated into multiple regularly arranged pore channels and manufacturing method thereof |
| CN104530466A (en) * | 2015-01-21 | 2015-04-22 | 中国科学技术大学 | Freezing method of material with microcosmic lamellar structure |
| CN106117610A (en) * | 2016-07-05 | 2016-11-16 | 昆明理工大学 | The preparation method of Semen Maydis full stalk regenerated cellulose active carbon nanoparticles pluralgel film |
| CN106362492A (en) * | 2016-09-28 | 2017-02-01 | 陕西科技大学 | Preparation method of cellulose-based biodegradable type air filtering material |
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