CN106178684A - Decontaminable polysulfones filter combination - Google Patents

Decontaminable polysulfones filter combination Download PDF

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Publication number
CN106178684A
CN106178684A CN201610605666.9A CN201610605666A CN106178684A CN 106178684 A CN106178684 A CN 106178684A CN 201610605666 A CN201610605666 A CN 201610605666A CN 106178684 A CN106178684 A CN 106178684A
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polysulfones
compositions described
filtering material
polysulfone compositions
group
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CN106178684B (en
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张勇
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SHANGHAI SUPERHIGH ENGINEERING PLASTIC Co Ltd
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SHANGHAI SUPERHIGH ENGINEERING PLASTIC Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G75/00Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
    • C08G75/20Polysulfones
    • C08G75/23Polyethersulfones

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)

Abstract

The present invention provides a kind of decontaminable polysulfones filter combination, includes at least: aromatics dihalo sulphones, aromatic dihydroxy compound.

Description

Decontaminable polysulfones filter combination
Technical field
The present invention relates to a kind of polysulfones filter combination, particularly to a kind of decontaminable polysulfones filter combination.
Background technology
Polysulfones is a kind of amorphism thermoplastic, containing sulfuryl, ether and aromatic ring structure in its molecular backbone.Due to it There is the features such as excellent thermostability, physical and mechanical property, chemical stability, anti-flammability, be widely used in electrical equipment, machine The fields such as tool equipment, transportation, space flight and aviation, medical apparatus and instruments.
Polysulfones does not has hydrophilic radical because of it, and shows strong hydrophobicity, therefore can make in wet condition With, ageing resistace is good;But the most just due to its strong hydrophobicity, easily cause the filtering material prepared by it dirty Dye, this problem limits its application always.After conventional solution is modified to polysulfones or carries out its goods Phase processes.But during the later stage processes, the phenomenon that can not forever use often occurs, and polysulfones modification can be affected The strainability of polysulfones itself.
Need badly for above-mentioned situation and a kind of there is easy decontamination, there is the polysulfones filter combination of relatively high filtration performance simultaneously, And thus obtained polysulfones filtering material, it can be in filter membrane, drainage screen, screen plate, filter cotton, filtration granule, filter bag One or more.
Summary of the invention
The present invention relates to a kind of decontaminable polysulfones filter combination, include at least:
Polysulfones and material 1;
Wherein, described polysulfones is prepared by aromatics dihalo sulphones and aromatic dihydroxy compound,
Wherein, aromatics dihalo sulphones structural formula is: X1-Ph1-SO2-Ph2-X2
X1And X2Each is halogen atom independently;
Aromatic dihydroxy compound structural formula is HO-Ph1-SO2-Ph2-OH、O-Ph3-R-Ph4-OH and HO-(Ph5)n-OH In one or more;
By Ph1And Ph5In any one is expressed as phenylene, each is the most permissible for the hydrogen atom being present in phenylene By alkyl or/and alkoxyl replaces;
The structural formula of described material 1 is as follows:
Described X group is halogen;Described Y group is oxy radical.
As a kind of embodiment, described X group is fluorine.
As a kind of embodiment, described alkyl is or/and the carbon number C1-C6 of alkoxyl.
As a kind of embodiment, described alkyl one in methyl, ethyl, propyl group;Described alkoxyl is selected from first One in epoxide, ethyoxyl.
As a kind of embodiment, the raw material of preparing of described material 1 at least includes:
As a kind of embodiment, described aromatics dihalo sulphones, the mol ratio of aromatic dihydroxy compound are (0.9-10.2): 1.
Described polysulfone compositions, is used for preparing polysulfones filtering material.
A kind of polysulfones filtering material, is prepared by described polysulfone compositions.
As a kind of embodiment, described polysulfone compositions, also include:
Polymeric additive: one or more in polyvinylpyrrolidone, Polyethylene Glycol, polyvinyl alcohol;
Micromolecule additive: surfactant, diethylene glycol dimethyl ether, inorganic salt, propanoic acid, alcohol apoplexy due to endogenous wind one or more;
Solvent: the one or many in dimethyl second phthalein amine, dimethyl methyl phthalein amine, N-Methyl pyrrolidone, dimethyl sulfoxide Kind.
A kind of preparing described polysulfones filtering material, described step is:
(1) the aromatics dihalo sulphones of suitable mol ratio and aromatic dihydroxy compound are dissolved in polar organic molten In agent, solution temperature, for being 40 to 180 DEG C, adds alkali metal salt, carries out polycondensation, and polycondensation reaction temperature is 180 to 400 DEG C, instead Answer 12-28 hour, obtain product (1);
(2) willUnder aryl lithium, obtain intermediate, then under acetenyl magnesium, addPrepare material 1;
(3)
A: the material 1 and the additive that step (2) are prepared are dissolved in organic solvent 1, obtain material 1 based sols; The product (1) step (1) prepared is dissolved in organic solvent 2, both solution of mixing, stirring;
B: solution in step is made filtering material.
Accompanying drawing explanation
Fig. 1: the nucleus magnetic hydrogen spectrum of material 1-1
A kind of schematic diagram of Fig. 2: filtering material
Detailed description of the invention
Participate in the election of the detailed description being preferable to carry out method of the invention below and the embodiment that includes can be more easily understood this Bright content.Unless otherwise defined, all technology used herein and scientific terminology have common with art of the present invention The identical implication that technical staff is generally understood that.When there is contradiction, it is as the criterion with the definition in this specification.
Term as used herein " by ... preparation " and " comprising " synonym.Term used herein " comprises ", " including ", " have ", " containing " or its other deformation any, it is intended that cover the including of non-exclusionism.Such as, the combination of listed elements is comprised Thing, step, method, goods or device are not necessarily solely those key elements, but can include other not expressly listed key element or The key element that this kind of compositions, step, method, goods or device are intrinsic.
Conjunction " Consists of " gets rid of any key element, step or component do not pointed out.If in claim, this Phrase will make claim be closed so that it is does not comprise the material in addition to the material that those describe, but relative often Except rule impurity.When being rather than immediately following during phrase " Consists of " occurs in the clause of claim main body after theme, It is only limited to the key element described in this clause;Other key element is not excluded outside as overall described claim.
Equivalent, concentration or other value or parameter are excellent with scope, preferred scope or a series of upper limit preferred value and lower limit During the Range Representation that choosing value limits, this is appreciated that and specifically discloses by any range limit or preferred value and any scope All scopes that arbitrary pairing of lower limit or preferred value is formed, regardless of whether whether this scope separately discloses.Such as, when open During scope " 1 to 5 ", described scope should be interpreted as including scope " 1 to 4 ", " 1 to 3 ", " 1 to 2 ", " 1 to 2 and 4 to 5 ", " 1 to 3 and 5 " etc..When numerical range is described in this article, unless otherwise indicated, otherwise this scope is intended to include its end Value and all integers within the range and mark.
Singulative includes that plural number discusses object, unless the context clearly dictates otherwise." optional " or " arbitrarily A kind of " refer to that the item described thereafter or event may or may not occur, and this description include situation that event occurs with The situation that event does not occurs.
Approximation term in specification and claims is used for modifying quantity, represents that the present invention is not limited to this concrete Quantity, also includes close to this quantity acceptable without causing the part of the correction of the change of relevant basic function.Phase Answer, modify a numerical value with " about ", " about " etc., mean and the invention is not restricted to this exact numerical.In some example, approximation Term likely corresponds to measure the precision of the instrument of numerical value.In present specification and claims, scope limits permissible Combination and/or exchange, these scopes include all subranges contained therebetween if not stated otherwise.
Additionally, indefinite article " a kind of " before key element of the present invention or component and " one " are to key element or the quantitative requirement of component (i.e. occurrence number) unrestriction.Therefore " one " or " a kind of " should be read as including one or at least one, and odd number The key element of form or component also include plural form, unless the obvious purport of described quantity refers to singulative.
" polymer " means the polymerizable compound prepared by the monomer by being polymerized identical or different type.Generic term " polymer " comprises term " homopolymer ", " copolymer ", " terpolymer " and " copolymer ".
" copolymer " means the polymer prepared by polymerization at least two different monomers.Generic term " copolymer " includes (it is general with term " terpolymer " for term " copolymer " (it is typically in order to refer to the polymer prepared by two kinds of different monomers) In order to refer to the polymer prepared by three kinds of different monomers).It also comprises the polymerization manufactured by polymerization four or more kinds of monomers Thing." blend " mean two or more polymer by physics or the method for chemistry jointly mix and the polymerization that formed Thing.
The present invention relates to a kind of decontaminable polysulfones filter combination, include at least:
Polysulfones and material 1;
Wherein, described polysulfones is prepared by aromatics dihalo sulphones and aromatic dihydroxy compound,
Wherein, aromatics dihalo sulphones structural formula is: X1-Ph1-SO2-Ph2-X2
X1And X2Each is halogen atom independently;
Aromatic dihydroxy compound structural formula is HO-Ph1-SO2-Ph2-OH、O-Ph3-R-Ph4-OH and HO-(Ph5)n-OH In one or more;
By Ph1And Ph5In any one is expressed as phenylene, each is the most permissible for the hydrogen atom being present in phenylene By alkyl or/and alkoxyl replaces;
The structural formula of described material 1 is as follows:
Described X group is halogen;Described Y group is oxy radical.
Polysulfones:
Polysulfones is containing alkyl-SO in molecular backbone2The thermoplastic resin of chain link, it includes polyarylsulfone (PAS) and polyether sulfone two Kind.
Polyarylsulfone (PAS) is to have containing aryl (that is, by removing two hydrogen atoms being bonded to its aromatic ring from aromatic compounds The residue obtained) and sulfonyl (-SO2-) the resin of repetitive.Aromatic polysulphone resin can be suitably by using carbonic acid Alkali metal salt in the organic solvent of high-polarity, make corresponding aromatics dihalo sulphones and aromatic dihydroxy compound Polycondensation produces.Such as, the compound that use is represented by following formula (4) is as aromatics dihalo sulphones, and uses by following formula (5) compound represented, as aromatic dihydroxy compound, can produce the resin with repetitive (1).It addition, by making With compound (4) as aromatics dihalo sulphones, and use the compound represented by following formula (6) as aromatic dihydroxy Compound, can produce and have repetitive (1) and the resin of repetitive (2).Additionally by using compound (4) as aromatics Dihalo sulphones, and the compound represented by following formula (7) can produce as aromatic dihydroxy compound and have repetition list Unit (1) and the resin of repetitive (3).
-Ph1-SO2-Ph2-O- (1)
In formula (1), Ph1And Ph2The most independent is phenylene, and the hydrogen atom being present in phenylene each is only On the spot can be replaced by alkyl, alkoxyl
-Ph3-R-Ph4-O- (2)
-(Ph5)n-O- (3)
In formula (3), Ph5Phenylene, the hydrogen atom being present in phenylene each independently can be by alkyl, virtue Base or halogen atom replace, and n is the integer of 1-3, and when n is two or more, multiple Ph5Can be identical or not With.
X1-Ph1-SO2-Ph2-X2 (4)
In formula (4), X1And X2Each is halogen atom independently.
HO-Ph1-SO2-Ph2-OH (5)
HO-Ph3-R-Ph4-OH (6)
HO-(Ph5)n-OH (7)
By Ph1And Ph5In any one phenylene represented can be to phenylene, metaphenylene or adjacent phenylene and excellent Selection of land is to phenylene.The example of the alkyl that can replace the hydrogen atom being present in phenylene include methyl, ethyl, positive third Base, isopropyl, normal-butyl, isobutyl group, sec-butyl and the tert-butyl group, and the number of carbon atom can be that 1-5. can replace existence The example of the aryl in phenylene includes phenyl, 1-naphthyl, 2-naphthyl and p-methylphenyl, and the number of carbon atom can be 6-15.The example of the alkylidene group represented by R include methylene, Asia and, isopropylidene and 1-butylidene, the number of carbon atom Mesh can be 1-5.
In the present invention, described alkyl is methyl, ethyl, propyl group;In the present invention, most preferably methyl, because ethyl and third The steric hindrance of base is bigger.
In the present invention, the reaction monomers containing the substituted phenylene of alkyl accounts for the 10 of described aromatic dihydroxy compound total amount Weight %-40 weight %
Aromatic polysulphone resin for the present invention has such reduced viscosity, preferably 0.25-0.60dl/g, more preliminary election Ground 0.30-0.55dl/g.Still more preferably 0.36-0.55dl/g.If the reduced viscosity of aromatic polysulphone resin is the least, Intensity may be lowered and, if reduced viscosity is too big, the processability of the resin of gained is poor.
The example of compound (4) includes double (4-chlorphenyl) sulfone and 4-chlorphenyl-3 ', 4 '-Dichlorobenzene base sulfone.
The example of compound (5) includes double (4-hydroxyphenyl) sulfone, double (4-hydroxyl-3,5-3,5-dimethylphenyl) sulfone and double (4- Hydroxyl-3-phenyl) sulfone.
The example of compound (6) includes 2, double (4-hydroxyphenyl) propane of 2-, and 2,2-double (4-hydroxyphenyl) HFC-236fa are double (4-hydroxyphenyl) thioether, double (4-hydroxy-3-methyl phenyl) thioether and double (4-hydroxyphenyl) ether.
The example of compound (7) includes hydroquinone, resorcinol, catechol, pheny lhydro quinone, 4, and 4 '-dihydroxybiphenyl, 2, 2 '-dihydroxybiphenyl, 3,5,3 ', 5 '-tetramethyl-4,4 '-dihydroxybiphenyl, 2,2 '-diphenyl-4,4 '-dihydroxybiphenyl and 4,4 " '-dihydroxy-p-quaterphenyl.
The alkali metal salt of carbonic acid can be alkali carbonate, and it is normal salt, alkali metal hydrogencarbonate, and it is acid salt, Or the mixture of both.As alkali carbonate, it is preferred to use sodium carbonate and potassium carbonate, and as alkali metal carbon Acid hydrogen salt, it is preferred to use sodium bicarbonate and potassium bicarbonate.
The example of organic solvent includes dimethyl sulfoxide, 1-methyl 2-Pyrrolidone, sulfolane (1,1-dioxidotetrahydro thiophene, 1,3-dimethyl-2-imidazolidinone, 1,3-diethyl-2-imidazolidinone, dimethylsulfone, diethyl sulfone, diisopropyl sulfone and diphenyl sulphone (DPS).
The above-mentioned reaction of aromatic polysulphone resin is taking off between aromatics dihalo sulphones and aromatic dihydroxy compound Hydrogen halides polycondensation, occurs without side reaction, owing to the molar ratio of both is close to 1: 1, i.e. due to used The quantity of aromatics dihalo sulphones is close to 100mol%, based on aromatic dihydroxy compound, there is such trend, The i.e. degree of polymerization of the aromatic polysulphone resin of gained becomes higher, and reduced viscosity becomes higher.But, it practice, owing to making Alkali metal hydroxide for by-product or the like, there occurs that side reaction is as by the substitution reaction of halo group to oxy radical And depolymerization, and there is such trend, i.e. due to this side reaction, reduce the degree of polymerization of the aromatic polysulphone resin of gained, And reduce reduced viscosity, but also the number that there is such trend, i.e. oxy radical increases.Additionally, without Side reaction occurs, because owing to polycondensation reaction temperature is higher, target polycondensation reaction carries out faster, there is such trend, The i.e. degree of polymerization of the aromatic polysulphone resin of gained becomes higher, and reduced viscosity becomes higher.But, it practice, because used Polycondensation reaction temperature higher, above-mentioned side reaction is susceptible to.Accordingly, because the degree of this side reaction,
Preferably, the quantity of the aromatics dihalo sulphones used by regulation, the quantity of alkali metal salt used, and polycondensation Reaction temperature, in order to obtain and there is predetermined number or more aromatic polysulphone resin, preferably for obtaining, there is suitable ratio The aromatic polysulphone resin of dense viscosity.
The quantity of aromatics dihalo sulphones used can be 80 to 105mol%, preferably 98 to 100mol%, Based on aromatic dihydroxy compound.
The quantity of the alkali metal salt of carbonic acid used can be 95mol% or more, by alkali metal, based on aromatics dihydroxy The hydroxyl of based compound.If it addition, the quantity of aromatics dihalo sulphones used can be 80-98mol%, based on virtue Race's dihydroxy compounds, the quantity of the alkali metal salt of carbonic acid used can be 95-100.5mol%, by alkali metal, based on The hydroxyl of aromatic dihydroxy compound and, if the quantity of aromatics dihalo sulphones used is 98-105mol%, base In aromatic dihydroxy compound, the quantity of the alkali metal salt of carbonic acid can be 100.5-140mol%, by alkali metal, based on virtue The hydroxyl of race's dihydroxy compounds.
In the typical method manufacturing aromatic polysulphone resin, obtain aromatic polysulphone resin by following manner: as the In one stage, aromatics dihalo sulphones and aromatic dihydroxy compound are dissolved in organic polar solvent, as second-order Section, adds the alkali metal salt of carbonic acid the solution of gained to, and makes aromatics dihalo sulphones and aromatic dihydroxy compound Polycondensation, and as the phase III, remove the alkali metal salt of unreacted carbonic acid from the reactant mixture of gained, alkali metal salt is such as Alkali halide (as by-product), and organic polar solvent.
Solution temperature in the first stage can be 40 to 180 DEG C, and in the polycondensation reaction temperature of second stage can be 180 to 400 DEG C.Because polycondensation reaction temperature is higher, there is such trend, it is thus achieved that there is high molecular and Gao Bi is dense viscous The aromatic polysulphone resin of degree, and this is preferred, but when polycondensation reaction temperature is the highest, side reaction is easily sent out as degenerated Give birth to, and this is not preferred.On the other hand, when polycondensation reaction temperature is the lowest, reaction is slow, and this is not preferred.Have Profit is that polycondensation reaction can be carried out by following manner: gradually step up temperature, removes the water as by-product simultaneously, and After temperature reaches the reflux temperature of organic polar solvent, usual 1-50 hour of further stirring material, preferably 10-30 hour.
Replace the alkali metal salt of above-mentioned first stage and second stage, first mixed carbonic acid, aromatic dihydroxy compound With organic polar solvent and make it react, take out the water as by-product, then, by this reaction and aromatics dihalo sulfone chemical combination Thing mixes, and thus, it is possible to carry out polycondensation reaction, and when the quantity of aromatics dihalo sulfonic acid used is 80-98mol% Time (based on aromatic dihydroxy compound), mainly adopt in this way.If the number when aromatics dihalo sulphones used When amount is to adopt in this way during 98-105mol% (based on aromatic dihydroxy compound), because hydroxy number reduces, this is not Preferably.In this approach, in order to take out water from reaction solution, the organic solvent of azeotrope with water may be mixed in react molten In liquid, this causes azeotropic dehydration.The example of the organic solvent of azeotrope with water includes benzene, chlorobenzene, toluene, methyl iso-butyl ketone (MIBK), oneself Alkane and hexamethylene.The temperature carrying out azeotropic dehydration can be 70-200 DEG C, depends on temperature during azeotropic solvent azeotrope with water simultaneously Degree.
In the phase III, from the reactant mixture obtained in second stage, remove unreacted with filter plant or centrifuge The alkali metal salt of carbonic acid, and alkali metal salt such as alkali halide (as by-product), and thus can obtaining wherein Organic polysulfone resin is dissolved in the solution of organic polar solvent.By removing organic polar solvent from solution, it is thus achieved that aromatic polysulfones Resin.The removing of organic polar solvent can be fallen organic polar solvent by straight run distillation from solution and carry out, or permissible By once solution being placed in the poor solvent of aromatic polysulphone resin to make aromatic polysulphone resin precipitate, and by filtering Or it is centrifugal and separation resin is carried out.
If it addition, the organic polar solvent with higher melt is used as polymer solvent, it is also possible in second stage The reactant mixture obtained is cooled and solidifies, abrasive solid solution and, use thereafter water and aromatic polysulphone resin do not had Solvability and have the solvent of solvability to organic polar solvent, extracts and removes the alkali metal salt of carbonic acid, alkali metal salt Such as alkali halide (as by-product), and organic polar solvent.
Material 1:
The structural formula of described material 1 is as follows:
Described X group is halogen;Described Y group is oxy radical;
The raw material of preparing of described material 1 at least includes:
The equation of preparing of described material 1 is:
As a kind of embodiment, described X group is halogen, and as a kind of optimal way, described X group is fluorine.
As a kind of embodiment, described Y group is oxy radical, and described oxy radical is hydroxyl, carboxyl.
As a kind of embodiment, describedIt is preferably In one or more.
DescribedIt is selected from In one or more.
WhenForForTime, the structure of material 1 is
Material 1-1, with deuterated DMSO as solvent,1H NMR characterizes, chemical shift δ (ppm): 6.8 (m, 13H), 6.95 (d, 1H),7.04(d,12H),7.22(d,1H)。
In the present invention, described material 1 is small molecule crystals structure, and pollutant can be had by it for having small structure Well filter.With deuterated DMSO as solvent,1H NMR characterizes, chemical shift δ (ppm): 6.8 (m, 13H), 6.95 (d, 1H), 7.04(d,12H),7.22(d,1H)。
Additive:
Polymeric additive: polyvinylpyrrolidone, Polyethylene Glycol, polyvinyl alcohol.
Different additives is the most different on the impact of filtering material structure and performance.It is, in general, that polymeric additive Addition can make the viscosity of solution increase.
Micromolecule additive: surfactant, diethylene glycol dimethyl ether, inorganic salt, propanoic acid, alcohols.
Viscosity may be made to increase for the addition of micromolecule additive it is also possible that viscosity reduces.Therefore it is poly-when small-molecule substance When the non-solvent of compound or sweller, polymer forms network structure, hinders the motion of polymer molecule, and solution viscosity increases Add;When small-molecule substance solvent is mixed to form the cosolvent of this polymer, the interaction between polymer and solvent is more than Interaction between polymer and polymer, solution viscosity reduces.
Described surfactant is preferably hydrophobic surfactant.
Solvent: the one or many in dimethyl second phthalein amine, dimethyl methyl phthalein amine, N-Methyl pyrrolidone, dimethyl sulfoxide Kind.
A second aspect of the present invention provides a kind of described polysulfones filter combination, and described polysulfones filter combination is used for preparing Polysulfones filtering material.
According to the size in filtering material aperture, microfiltration, filtration, nanofiltration and reverse osmosis can be divided into.Micropore filter material aperture At 1-0.01 microns, can effectively remove the impurity such as the majority of particles in water, antibacterial.Filtering material aperture is arrived tens Hundreds of nanometer, it is possible to be easy to remove the virus in water and pyrogen body.Nanofiltration filtering material and osmosis filtration material aperture are more Little, about at several angstroms, it is possible to from water, to depart from ion.
A kind of polysulfones filtering material, is prepared by described polysulfone compositions.
Described filtering material can use various existence form, such as filter membrane, drainage screen, screen plate, filter cotton, filtration One or more in granule, filter bag.Following preparation method is a kind of preparation method preparing filter membrane.Drainage screen, filtration Plate, filter cotton, filtration granule, the preparation method of filter bag can use preparation method well known by persons skilled in the art, as long as It it is the preparation scope utilizing the raw material of the present invention just to prepare and belonging to the present invention.
Concrete preparation process is:
(1) the aromatics dihalo sulphones of suitable mol ratio and aromatic dihydroxy compound are dissolved in polar organic molten In agent, solution temperature, for being 40 to 180 DEG C, adds alkali metal salt, carries out polycondensation, and polycondensation reaction temperature is 180 to 400 DEG C, instead Answer 12-28 hour, obtain product (1);
(2) willUnder aryl lithium, obtain intermediate, then under acetenyl magnesium, addPrepare material 1;
(3)
A: the material 1 and the additive that step (2) are prepared are dissolved in organic solvent 1, obtain material 1 based sols; The product (1) step (1) prepared is dissolved in organic solvent 2, both solution of mixing, stirring;
C: solution in step a is prepared as filtering material.
The filtering material prepared substantial amounts of deionized water rinsing, immersion 4 hours, and preserve in deionized water, stand-by.
The present invention provides the filtering material that a kind of described polysulfones filter combination prepares, its be filter membrane, drainage screen, One or more in screen plate, filter cotton, filtration granule, filter bag.It is illustrated in figure 2 a kind of by polysulfones filtration group of the present invention The filtering material that compound prepares, it is schematic diagram, concrete thickness, and the change of shape, for protection scope of the present invention, is not Creative change.
The filtering material prepared by filter combination provided by the present invention, does not do concrete restriction, can be film, Plate;The thickness of described film can be Nano grade, it is also possible to is macroscopic thickness.Described screen plate can have certain Pliability, it is possible to have the strongest rigidity.
The improvement of the non-creativeness made on the basis of filter combination provided by the present invention and filtering material, all belongs to In protection scope of the present invention.
In the present invention, described in have polysulfones to prepare filtering material there is the ability that can filter PM2.5 granule.It is former Because being because, while polysulfones own has the strongest filter capacity, material 1 is small molecule crystals structure, has in its crystal The pore structure of about about 2nm, can be with filtration fraction granule.Simultaneously as the polarity of the F in little molecular structure, permissible Attract the electronics of phenyl ring so that the polarity of molecule is bigger, the alkyl on polysulfones simultaneously, by increasing capacitance it is possible to increase the electron cloud on phenyl ring is close Degree, thus improves the effect between polysulfones and little molecule, particularly effect between π-π between phenyl ring and phenyl ring.The application is special The inventor of profit, the alkyl being found surprisingly that on polysulfones, due to steric hindrance reason, is not The more the better.
Below by embodiment, the present invention is specifically described.Be necessary it is pointed out here that, following example are only used In the invention will be further described, it is impossible to be interpreted as limiting the scope of the invention, professional and technical personnel in the field Some nonessential improvement and adjustment that content according to the invention described above is made, still fall within protection scope of the present invention.
It addition, illustrate without other, raw materials used is all commercially available.
Test:
Hydrophilicity characterizes:
Use the water contact angle testing the filtering material surface prepared to characterize the hydrophilicity of filtering material.Use Kruss DSA10Goniometer type water contact angle tester (Hamburg, Germany company), by the air supporting method table to filtering material Face hydrophilic is tested;Every filtering material is at least tested 5 times, then averages.
Water permeation performance characterizes:
Use Osborne Arch Punch type punching instrument (U.S. Zack White Leather company) in above-mentioned filtration Get the disk of a diameter of 150mm on material, use AMT UHP-25 type continuous filtering device (AMI company of the U.S.), in pressure Power is to test the bio-separation performance of filtering material i.e. to water permeability (water flux) with to bovine serum albumin under the conditions of 10psi Repellency (selectivity).
Characterized the permeance property of filtering material by measuring pure water by the flux of filtering material, specifically comprise the following steps that
Make the Stress control of system at 10psi by vacuum valve, after stablizing 10min, pass through in measuring and record 1min The weight of water, calculates the permeability of filtering material with formula: J=V/ (st)=m/ (ρ st), and wherein J, V, m, ρ, s and t are respectively The pure water flux of filtering material, certain time inner filtration material are by the density at a temperature of the volume of water, weight, mensuration, mensuration The effective area of filtering material and testing time.The effective area of this test filtering material is 3.5cm2, the testing time is fixed as 60s。
Rate and protein retention characterizes:
By measuring filtering material, the rejection of bovine serum albumin is characterized the selection performance of filtering material.Ox blood serum egg White molecular weight is about 66kDa, and its molecular shape ellipse is spherical, and size is 4nm × 4nm × 14nm;If it is seen balling-up Shape granule, its average diameter about 6nm.Specifically comprise the following steps that
First with 0.05mol/L potassium chloride for the mother liquor concentration bovine serum albumin standard solution as 1.0g/L.Use Ultraviolet spectrophotometer measures the absorbance of solution at 278nm.Then, make bovine serum albumin standard solution saturating at 10 psi Cross filtering material to be measured, collect 3mL filtrate, measure filtrate absorbance at 278nm, according to formula R=(1-Cp/Cf)× The rejection i.e. selectivity of 100% calculated bovine serum albumin, wherein R, Cp、CfIt is respectively rate and protein retention, standard molten The ultraviolet absorptivity of liquid and the ultraviolet absorptivity of filtrate.
Table 1
Table 2
Table 3 (under the conditions of example 10)
Table 4
Test result:
Table 1 ' (test result of table 1)
Table 2 ' (test result of table 2)
Table 3 ' (table 3 and the test result of table 4)
Data above it can be seen that with do not use the specific aromatics dihalo sulphones containing alkyl and containing alkyl Polysulfones, the product of material 1 that aromatic dihydroxy compound prepares are compared, and material prepared by the present invention is possessing relatively high purity water While flux and bovine serum albumin rejection, also there is relatively low water contact angle, there is certain automatically cleaning ability, therefore provide The Advantageous Effects of the present invention.
Aforesaid example is merely illustrative, for explaining some features of the feature of the disclosure.Appended claim It is intended to the widest scope that requirement it is contemplated that, and embodiments as presented herein is only according to all possible embodiment The explanation of embodiment of selection of combination.Therefore, the purpose of applicant is that appended claim is not by the explanation present invention The selectional restriction of example of feature.And the progress in science and technology will be formed due to language performance inaccurate reason and not The possible equivalent or the son that are presently considered are replaced, and these changes also should be interpreted in the conceived case by appended Claim covers.

Claims (10)

  1. The most decontaminable polysulfones filter combination, includes at least:
    Polysulfones and material 1;
    Wherein, described polysulfones is prepared by aromatics dihalo sulphones and aromatic dihydroxy compound,
    Wherein, aromatics dihalo sulphones structural formula is: X1-Ph1-SO2-Ph2-X2
    X1And X2Each is halogen atom independently;
    Aromatic dihydroxy compound structural formula is HO-Ph1-SO2-Ph2-OH、O-Ph3-R-Ph4-OH and HO-(Ph5)nIn-OH one Plant or multiple;
    By Ph1And Ph5In any one is expressed as phenylene, the hydrogen atom being present in phenylene each independently can be by alkane Base is or/and alkoxyl replaces;
    The structural formula of described material 1 is as follows:
    Described X group is halogen;Described Y group is oxy radical.
  2. 2. the polysulfone compositions described in claim 1, described X group is fluorine.
  3. 3. the polysulfone compositions described in claim 1, described alkyl is or/and the carbon number C1-C6 of alkoxyl.
  4. 4. the polysulfone compositions described in claim 3, described alkyl one in methyl, ethyl, propyl group;Described alkoxyl One in methoxyl group, ethyoxyl.
  5. 5. the polysulfone compositions described in claim 1, the raw material of preparing of described material 1 at least includes:
  6. 6. the polysulfone compositions described in claim 1, described aromatics dihalo sulphones, aromatic dihydroxy compound mole Than being (0.9-10.2): 1.
  7. 7. the polysulfone compositions described in claim 1-6, is used for preparing polysulfones filtering material.
  8. 8. a polysulfones filtering material, is prepared by the polysulfone compositions described in claim 1-5.
  9. 9. the polysulfone compositions described in claim 1, also includes:
    Polymeric additive: one or more in polyvinylpyrrolidone, Polyethylene Glycol, polyvinyl alcohol;
    Micromolecule additive: surfactant, diethylene glycol dimethyl ether, inorganic salt, propanoic acid, alcohol apoplexy due to endogenous wind one or more;
    Solvent: one or more in dimethyl second phthalein amine, dimethyl methyl phthalein amine, N-Methyl pyrrolidone, dimethyl sulfoxide.
  10. 10. the polysulfones filtering material described in claim 8, its be filter membrane, drainage screen, screen plate, filter cotton, filtration granule, One or more in filter bag.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102510772A (en) * 2009-09-29 2012-06-20 住友化学株式会社 Aromatic polysulfone resin porous membrane
WO2013156598A1 (en) * 2012-04-20 2013-10-24 Basf Se Ultrafiltration membranes fabricated from sulfonated polyphenylenesulfones
CN104540580A (en) * 2012-06-14 2015-04-22 巴斯夫欧洲公司 Composite membranes comprising a sulfonated polyphenylenesulfone and their use in forward osmosis processes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102510772A (en) * 2009-09-29 2012-06-20 住友化学株式会社 Aromatic polysulfone resin porous membrane
WO2013156598A1 (en) * 2012-04-20 2013-10-24 Basf Se Ultrafiltration membranes fabricated from sulfonated polyphenylenesulfones
CN104540580A (en) * 2012-06-14 2015-04-22 巴斯夫欧洲公司 Composite membranes comprising a sulfonated polyphenylenesulfone and their use in forward osmosis processes

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Denomination of invention: Easy to clean polysulfone filtration composition

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