CN101966409A - Novel macromolecular filter material and preparation method thereof - Google Patents
Novel macromolecular filter material and preparation method thereof Download PDFInfo
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- CN101966409A CN101966409A CN 201010533209 CN201010533209A CN101966409A CN 101966409 A CN101966409 A CN 101966409A CN 201010533209 CN201010533209 CN 201010533209 CN 201010533209 A CN201010533209 A CN 201010533209A CN 101966409 A CN101966409 A CN 101966409A
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Abstract
The invention discloses a novel macromolecular filter material and a preparation method thereof. The method comprises the following steps of: performing cross-linking curing on polyvinyl alcohol linear macromolecular filter material, foaming auxiliary agent, cross linker and catalyst, performing foaming at the early stage or the medium-late stage of the cross-linking curing link to form porous foam, then further performing cross-linking ageing to obtain sponge matrix, cleaning the sponge matrix, and hardening the sponge matrix; and finally, cleaning and shearing the hardened product to obtain the novel macromolecular filter material. The method can adjust the density and diameter of foam holes in a large range and can load a filter modified material; and the obtained novel macromolecular composite filter material has the advantages of good hydrophilic or lipophilic property, high filter flow rate, strong chemical weather resistance, good mechanical property, wide variable range of technical parameters, reutilization and natural degradability, and can be widely applied in filter treatment processes of industries of beverage, sugar refining, chemical engineering, industrial oil and the like and in the industries of water treatment, air filter and the like.
Description
Technical field
The present invention relates to a kind of macromolecule filter material and preparation method thereof, but relate in particular to that a kind of aperture is even, percent opening is high, hydrophilic or the oleophylic performance is good, hot strength is big, compressive resistance is high, filtering accuracy is high, filtration flow-rate is fast and the macromolecule filter material of natural degradation and preparation method thereof.
Background technology
Producing Pioloform, polyvinyl acetal sponge (hereinafter to be referred as the PVA sponge) matrix, is the prerequisite step of producing PVA foamed filter material.After producing the PVA sponge,, cut into various sizes after the cleaning and make filtering material again with its cure process.This technology rarely has report at home and uses.But production PVA sponge matrix, comparatively general at home.Understand according to industry, domestic manufacturer in 2009, nearly 120 families of big or small producer that adopt traditional starch pore method to produce, a day sponge total output surpasses 8000 cubic metres, 28000 tons of day waste water (being rich in hydrochloric acid, formaldehyde and pasty state starch) total releases.Along with market progressively enlarges, manufacturer constantly increases, and product yield also grows with each passing day.
Problem is, the production technology methods that adopt traditional starch filled foaming of present domestic PVA sponge sucks in water material more.Promptly under appropriate temperature earlier with starch filled in PVA solution, will again starch be washed off behind the PVA crosslinking curing at a certain temperature.Environmental pollution is serious when adopting this method to produce, and the subsequent treatment operation is long, and starch can not be cleaned fully, and starch and acid catalyst can not recycle fully, is unfavorable for economizing on resources and cutting down cost.
Publication number CN101363021 mixes earlier lime stone (calcium carbonate) powder and poly-vinyl alcohol solution, adds limestone powder and acid reaction generation carbon dioxide formation abscess behind the watery hydrochloric acid; After forming, also passes through abscess freeze-thaw, and freezing again-circulation of thawing again, form the network structure of macroporous polyvinyl alcohol formal gel.
The patent No. be 200910060414 sodium alginate and polyvinyl alcohol dissolved in water after, add inorganic acid, formaldehyde and sodium acid carbonate as the blowing agent blending and stirring; Obtain the polyvinyl formal sponge after blend solution is heating and curing.
Other method and present domestic polyvinylalcohol sponge manufacturer mostly adopt starch as filling, expand at a certain temperature after the starch suction, and the formation abscess that in mixed system, plants oneself, recirculation is cleaned starch is rinsed out behind the sponge curing molding.As publication number is in the polyvinyl formal foam preparation processes of CN101508747 and CN101508814, all with kind starch granules such as tapioca, farina, cornstarch as filler, behind polyvinyl alcohol colloidal sol curing molding, re-use big water gaging starch wash fallen.Though used modifier such as emulsifying agent, melamine and silica in the preparation link.
The technology that other is used for industrial screen pack and cleans civilian sponge, though introduce other macromolecular materials or the sponge physical and mechanical properties carried out modification through distinct methods, but starch filled conventional method as pore former has all been used in the formation of foaming of sponge and sponge abscess.
Domestic relating to, be used in the PVA sponge that to filter the industry report very rare, having only patent publication No. is among the CN1289629, the preparation technology of its polyvinylalcohol sponge molecular filtration plate has adopted the ultra-fine starch granules of process screening as abscess nucleation pore former too, again starch wash is fallen to obtain the polyvinyl formal sponge of pore behind polyvinyl alcohol colloidal sol curing molding, such pore sponge is applied to filtering industry because of its good and aperture of suction oil absorbency is less.
Compare with the CN1289629 patent, this invention technology production process does not use starch as pore former, uses the technology energy consumption problem of starch pore very outstanding, and cleaning is loaded down with trivial details.Catalytic action is only played in the use of original acid, does not participate in and reacts and formation consumption, can repeat to recycle cost fully, causes acid to recycle.In addition, cleaning link time consumption and energy consumption is serious, for clean starch wash, generally need industrial cleaning machine to change water and cleans each nearly one hour consuming time two to five times.So calculate, produce one cube sponge, be used in the water yield of cleaning link and be about four tons, be rich in the starch organic nutrient substance in the waste water that is emitted, bring a very big difficult problem to environmental protection.
Summary of the invention
For solving above-mentioned middle problem and the defective that exists, the invention provides a kind of novel high polymer filtering material and preparation method thereof.Described technical scheme is as follows:
A kind of novel high polymer filtering material comprises:
Described macromolecule filter material comprises polyvinyl alcohol, blowing promotor, crosslinking agent, catalyst.
Described blowing promotor is: arlacels, alkylolamides class, APES class, high-carbon fatty alcohol polyoxyethylene ether class, polyoxyethylene carboxylate class, APG class surfactant, or in amine salt, tertiary ammonium salt, quaternary ammonium salt, hyperbranched quaternary ammonium salt, soap, sulfonate, sulfuric ester or the phosphate ester salt one or more; Described crosslinking agent is one or more in formaldehyde, acetaldehyde, glyoxal, butyraldehyde, butanedial, glutaraldehyde, the benzaldehyde; Described catalyst is one or more in hydrochloric acid, phosphoric acid, the sulfuric acid.
A kind of preparation method of novel high polymer filtering material comprises:
Linear macromolecule filter material polyvinyl alcohol, blowing promotor, crosslinking agent, catalyst are carried out crosslinking curing, stir foaming formation porous foam in crosslinking curing link early stage or middle and later periods, further obtain the sponge matrix after the cross-linking curing then, carry out cure process after the sponge matrix is cleaned; Product after will hardening at last cleans cutting, obtains the novel high polymer filtering material.
The beneficial effect of technical scheme provided by the invention is:
The present invention is easy to clean, and saves the consumption of water greatly, and gained PVA sponge matrix cleannes height, helps secondary acetal cure process.
Production operation is easier to control, process stabilizing, and the production efficiency height, life cycle of the product is short.
Do not need to add starch, energy-conserving and environment-protective significantly reduce discharging of waste liquid and effectively protect workers ' health.
Porosity can be at inner control in a big way, product percent opening height; Present technique can be controlled in 10 μ m to 1500 mu m ranges the abscess average diameter size.
Intensity can be controlled, and increases product strength and its absorbent is not had big change.
The production waste liquid that can be recycled has particularly used the waste liquid that has produced when producing the sponge matrix in secondary acetal sclerosis link, significantly reduced the consumption and the discharging of acid catalyst.
Also can be according to the different needs of product application, in secondary acetal cure process link, use crosslinking agents such as formaldehyde, acetaldehyde, glyoxal, butyraldehyde, butanedial, glutaraldehyde, benzaldehyde selectively, improve product hot strength, compression strength, bending strength and lyophily performance etc. greatly, shorten product cure process time and cost, prolong product service life, also make this invention technology produce integrated cost and reduce greatly.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below embodiment of the present invention is described further in detail:
Present embodiment provides a kind of novel high polymer filtering material, and this material comprises: polyvinyl alcohol, blowing promotor, crosslinking agent, catalyst.Wherein blowing promotor is: arlacels, alkylolamides class, APES class, high-carbon fatty alcohol polyoxyethylene ether class, polyoxyethylene carboxylate class, APG class surfactant, or in amine salt, tertiary ammonium salt, quaternary ammonium salt, hyperbranched quaternary ammonium salt, soap, sulfonate, sulfuric ester or the phosphate ester salt one or more; Described crosslinking agent is one or more in formaldehyde, acetaldehyde, glyoxal, butyraldehyde, butanedial, glutaraldehyde, the benzaldehyde; Described catalyst is one or more in hydrochloric acid, phosphoric acid, the sulfuric acid.It is material modified to add filtration as required, and this filters material modified is a kind of, two or more mixtures among organic or inorganic small porous particle material, antioxidant, water-loss reducer, fire retardant, antistatic additive, antiseptic, the reinforcing agent etc.
The alcoholysis degree of above-mentioned polyvinyl alcohol raw material is between 50%～100%, and average degree of polymerization is between 500～2600.
Present embodiment also provides a kind of preparation method of novel high polymer filtering material, comprise linear macromolecule filter material polyvinyl alcohol, blowing promotor, crosslinking agent, catalyst are carried out crosslinking curing, foam in crosslinking curing link early stage or middle and later periods and to form the porous foam, further obtain the sponge matrix after the cross-linking curing then, carry out cure process after the sponge matrix is cleaned; Product after will hardening at last cleans cutting, obtains the novel high polymer filtering material.
The concrete preparation process of said method is referring to following examples:
Embodiment 1
With 1 part polyvinyl alcohol raw material dispersed with stirring in 30 parts water, be warming up to 40 ℃, make it fully dissolve the formation stabilizing solution, add 0.01 part of blowing promotor again, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 1 part when being cooled to 30 ℃, 1 part sulfuric acid, under 800 rev/mins mixing speed, stir and pour in the mould after 10 minutes, wash the raffinate in the product, obtain PVA sponge matrix, after the moisture in the PVA sponge matrix is extruded, it is immersed in the mixed liquor of formaldehyde and hydrochloric acid, be warming up to 40 ℃ and carry out secondary acetal curing 2 hours, cooling then, clean, dry, cut into the filtering material of required size and shape as required.
Embodiment 2
With 5 parts polyvinyl alcohol raw materials dispersed with stirring in 60 parts water, be warming up to 80 ℃, make it fully dissolve the formation stabilizing solution, add 0.2 part of blowing promotor again, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 6 parts when being cooled to 40 ℃, 6 parts sulfuric acid, under 800 rev/mins mixing speed, stir and pour in the mould after 10 minutes, wash the raffinate in the product, obtain PVA sponge matrix, after the moisture in the PVA sponge matrix is extruded, it is immersed in the mixed liquor of formaldehyde and hydrochloric acid, be warming up to 80 ℃ and carry out secondary acetal curing 8 hours, cooling then, clean, dry, cut into the filtering material of required size and shape as required.
Embodiment 3
With 8 parts polyvinyl alcohol raw materials dispersed with stirring in 70 parts water, be warming up to 90 ℃, make it fully dissolve the formation stabilizing solution, add 0.45 part of blowing promotor again, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 8 parts when being cooled to 45 ℃, 8 parts sulfuric acid, under 800 rev/mins mixing speed, stir and pour in the mould after 10 minutes, wash the raffinate in the product, obtain PVA sponge matrix, after the moisture in the PVA sponge matrix is extruded, it is immersed in the mixed liquor of formaldehyde and hydrochloric acid, be warming up to 85 ℃ and carry out secondary acetal curing 10 hours, cooling then, clean, dry, cut into the filtering material of required size and shape as required.
Embodiment 4
With 10 parts polyvinyl alcohol raw materials dispersed with stirring in 80 parts water, be warming up to 98 ℃, make it fully dissolve the formation stabilizing solution, add 0.5 part of blowing promotor again, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 10 parts when being cooled to 48 ℃, 10 parts sulfuric acid, under 800 rev/mins mixing speed, stir and pour in the mould after 10 minutes, wash the raffinate in the product, obtain PVA sponge matrix, after the moisture in the PVA sponge matrix is extruded, it is immersed in the mixed liquor of formaldehyde and hydrochloric acid, be warming up to 90 ℃ and carry out secondary acetal curing 12 hours, cooling then, clean, dry, cut into the filtering material of required size and shape as required.
Embodiment 5
With 10 parts polyvinyl alcohol raw materials dispersed with stirring in 80 parts of water, be warming up to 95 ℃, make it fully dissolve the formation stabilizing solution, add 1.2 parts of blowing promotors again, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 12 parts when being cooled to 30 ℃, 9 parts sulfuric acid, stirring foaming poured in the mould after 5 minutes, solidified 12 hours down at 80 ℃, to shift out mould after the cooling of the product behind the crosslinking curing, wash the raffinate in the product, obtain PVA sponge matrix, after the moisture in the PVA sponge matrix is extruded, it is immersed in formaldehyde and the mixed liquor of making the waste liquid that sponge matrix link reclaims, be warming up to 90 ℃ and carry out secondary acetal curing 12 hours, cooling is cleaned then, cuts into the filtering material of required size and shape as required.
Embodiment 6
With 10 parts polyvinyl alcohol raw materials dispersed with stirring in 100 parts of water, be warming up to 95 ℃, make it fully dissolve the formation stabilizing solution, add 1.5 parts of blowing promotors again, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 9 parts when being cooled to 50 ℃, 10 parts hydrochloric acid, under 800 rev/mins mixing speed, inflation is stirred after 10 minutes and is poured in the mould, solidified 12 hours down at 80 ℃,, wash the raffinate in the product shifting out mould after the cooling of the product behind the crosslinking curing, obtain PVA sponge matrix, after moisture in the PVA sponge matrix extruded, it is immersed in formaldehyde, in the mixed liquor of acetaldehyde and hydrochloric acid, be warming up to 80 ℃ and carry out secondary acetal curing 12 hours, cooling is cleaned then, cuts into the filtering material of required size and shape as required.
Embodiment 7
With 10 parts polyvinyl alcohol raw materials dispersed with stirring in 70 parts of water, be warming up to 95 ℃, make it fully dissolve the formation stabilizing solution, add 0.3 part of blowing promotor again, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 10 parts when being cooled to 35 ℃, 10 parts hydrochloric acid, (this recovery waste liquid is a hydrochloric acid to 20 parts recovery waste liquid, phosphoric acid, in the sulfuric acid one or more), under 300-800 rev/min mixing speed, foam and pour in the mould after 5 minutes, solidified 10 hours down at 75 ℃, to shift out mould after the cooling of the product behind the crosslinking curing, wash the raffinate in the product, obtain PVA sponge matrix, after moisture in the PVA sponge matrix extruded, it is immersed in formaldehyde, in the mixed liquor of glutaraldehyde and hydrochloric acid, be warming up to 70 ℃ and carry out secondary acetal curing 14 hours, cooling is cleaned then, cuts into the filtering material of required size and shape as required.
Embodiment 8
With 10 parts polyvinyl alcohol raw materials dispersed with stirring in 90 parts of water, be warming up to 95 ℃, make it fully dissolve the formation stabilizing solution, add 0.8 part of blowing promotor again, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 10 parts when being cooled to 35 ℃, 5 parts hydrochloric acid, 5 parts sulfuric acid, 10 parts diatomite, 20 parts recovery waste liquid, under 200-800 rev/min mixing speed, foam and pour in the mould after 5 minutes, solidified 10 hours down at 75 ℃, to shift out mould after the cooling of the product behind the crosslinking curing, wash the raffinate in the product, obtain PVA sponge matrix, after the moisture in the PVA sponge matrix is extruded, it is immersed in the mixed liquor of glutaraldehyde and recovery liquid, be warming up to and carry out the curing of secondary acetal more than 40 ℃, cooling is cleaned then, cuts into the filtering material of required size and shape as required.
Embodiment 9
With 10 parts polyvinyl alcohol raw materials dispersed with stirring in 100 parts of water, be warming up to 95 ℃, make it fully dissolve the formation stabilizing solution, add 1.0 parts of blowing promotors again, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 10 parts when being cooled to 35 ℃, 5 parts hydrochloric acid, 5 parts sulfuric acid, 10 parts active carbon powder, under 800 rev/mins mixing speed, foam and pour in the mould after 5 minutes, solidified 10 hours down at 75 ℃, to shift out mould after the cooling of the product behind the crosslinking curing, wash the raffinate in the product, obtain PVA sponge matrix, after PVA sponge matrix drying, it is immersed in formaldehyde and hydrochloric acid, in the mixed liquor of sulfuric acid, be warming up to 80 ℃ and carry out secondary acetal curing 8 hours, cooling then, clean, drying cuts into the filtering material of required size and shape as required.
Embodiment 10
With 10 parts polyvinyl alcohol raw materials dispersed with stirring in 120 parts of water, be warming up to 95 ℃, make it fully dissolve the formation stabilizing solution, add 1.5 parts of blowing promotors again, stirring makes its abundant dispersing and dissolving, the formaldehyde that adds 10 parts when being cooled to below 50 ℃, 10 parts hydrochloric acid, under 600-1200 rev/min mixing speed, foam and pour in the mould after 1-5 minute, solidified 15 hours down at 72 ℃,, wash the raffinate in the product shifting out mould after the cooling of the product behind the crosslinking curing, obtain PVA sponge matrix, PVA sponge matrix is squeezed out moisture after do not drip, it is immersed in formaldehyde, in the mixed liquor of glyoxal and hydrochloric acid, be warming up to 80 ℃ and carry out secondary acetal curing 12 hours, cooling then, clean, drying cuts into the filtering material of required size and shape as required.
Embodiment 11
With 10 parts polyvinyl alcohol raw materials dispersed with stirring in 100 parts of water, be warming up to 95 ℃, make it fully dissolve the formation stabilizing solution, add 1.2 parts of blowing promotors again, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 10 parts when being cooled to 35 ℃, 6 parts hydrochloric acid, 2 parts sulfuric acid, 10 parts active carbon powder, under 800 rev/mins mixing speed, foam and pour in the mould after 5 minutes, solidified 10 hours down at 75 ℃, to shift out mould after the cooling of the product behind the crosslinking curing, wash the raffinate in the product, obtain PVA sponge matrix, after PVA sponge matrix drying, it is immersed in the mixed liquor of glyoxal and sulfuric acid, be warming up to and carry out the curing of secondary acetal, cooling then more than 5 ℃, clean, drying cuts into the filtering material of required size and shape as required.
Embodiment 12
With 10 parts polyvinyl alcohol raw materials dispersed with stirring in 90 parts of water, be warming up to 95 ℃, make it fully dissolve the formation stabilizing solution, add 0.4 part of blowing promotor again, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 9 parts when being cooled to 55 ℃, 10 parts hydrochloric acid, under 200-960 rev/min mixing speed, the sodium acid carbonate that adds 0.3 part, stir and pour in the mould after 5 minutes, solidified 16 hours down at 75 ℃, with shifting out mould after the cooling of the product behind the crosslinking curing, wash the raffinate in the product, obtain PVA sponge matrix, PVA sponge matrix is immersed in butyraldehyde, glyoxal, in the mixed liquor of hydrochloric acid and recovery liquid, be warming up to 80 ℃ and carry out secondary acetal curing 15 hours, cooling then, clean, drying cuts into the filtering material of required size and shape as required.
Embodiment 13
With 10 parts polyvinyl alcohol raw materials dispersed with stirring in 80 parts of water, be warming up to 95 ℃, make it fully dissolve the formation stabilizing solution, add 0.3 part of blowing promotor again, the calcium carbonate that adds 0.5 part, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 9 parts when being cooled to below 60 ℃, 10 parts hydrochloric acid, under 400-1200 rev/min mixing speed, stir and pour in the mould after 5 minutes, solidified 16 hours down at 75 ℃, with shifting out mould after the cooling of the product behind the crosslinking curing, wash the raffinate in the product, obtain PVA sponge matrix, PVA sponge matrix is immersed in the mixed liquor of formaldehyde and recovery waste liquid, be warming up to 80 ℃ and carry out secondary acetal curing 15 hours, cooling then, clean, drying cuts into the filtering material of required size and shape as required.
Embodiment 14
With 10 parts polyvinyl alcohol raw materials dispersed with stirring in 300 parts of water, be warming up to 100 ℃, make it fully dissolve the formation stabilizing solution, add 10 parts of blowing promotors again, the crosslinking agent that adds 50 parts, stirring is fully dissolved it or is disperseed, the formaldehyde that adds 9 parts when being cooled to below 60 ℃, 10 parts hydrochloric acid, under 400-1200 rev/min mixing speed, stir and pour in the mould after 60 minutes, solidified 16 hours down at 105 ℃, with shifting out mould after the cooling of the product behind the crosslinking curing, wash the raffinate in the product, obtain PVA sponge matrix, PVA sponge matrix is immersed in the mixed liquor of formaldehyde and recovery waste liquid, be warming up to 100 ℃ and carry out secondary acetal curing 48 hours, cooling then, clean, drying cuts into the filtering material of required size and shape as required.
The Pioloform, polyvinyl acetal degree that the foregoing description provides is between 20%～99.9%, but acetalizing degree is preferential between 50%～99.9%.
The filtering material of the foregoing description is the porous foam of Pioloform, polyvinyl acetal thing, three-dimensional open-celled structure, its mean pore size according to filtering needs, cuts into the filtering material of thick tabular, the sheet of 0.5mm～100mm, circle shape or other shape between 1 μ m～1000 μ m.If desired, in the foregoing description manufacturing process, add to filter material modifiedly, can make it have performances such as decolouring, absorption, antibacterial and mouldproof.
Above-mentioned Pioloform, polyvinyl acetal porous foam is polyvinyl formal foam, polyvinyl acetal foam, polyvinyl butyral resin foam, polyvinyl alcohol glyoxal foam, polyvinyl alcohol contract one or more the mixture in glutaraldehyde foam, the polyvinyl alcohol condensing benzaldehyde foam of butanedial foam, polyvinyl alcohol that contracts that contracts.And being shaped as of Pioloform, polyvinyl acetal thing porous foam is tabular, sheet, circle shape or erose filtering material, and its thickness that cuts is generally 0.5～100 millimeter.
The foaming method of the foregoing description is that the gas of introducing is foamed to slurry by stirring method, and its method of introducing gas can be by high-speed stirred, charge into gas, add a kind of, two or more integrated approach in can the methods such as material of generated reactive gas; Then the sponge matrix after the demoulding is cleaned, this cleaning can be by rolling the method for washing, flushing drying method or clap, and the most handy method of washing of rolling is rolled the method for washing and is the roller of product by two or more continuous rotations pushed cleaning.
The foregoing description secondary acetal sclerosis back product cleaning method comprises water flushing or two kinds of cleaning methods of reaction method, the most handy reaction method.Its water punching method refers in the clear water that flows that the product after the acetal sclerosis is soaked and cleans, or clear water is watered continuously whom makes see through the purpose that product reaches cleaning on product; Its reaction method is that the product after the secondary acetal sclerosis is immersed at least a in the strong oxidant solutions such as potassium permanganate, hydrogen peroxide, hypochlorous acid, hypochlorite, ozone, or with strong oxidant solution be sprayed at clean on the product after the acetal sclerosis after, use aqueous slkali with the thorough neutralization reaction of the acid in the product, use clear water to clean up at last as required.
The macromolecule filter material that the foregoing description provides is used for filtration, processing or cleaning and the industries such as water treatment and air filtration of industries such as beverage, wine industry, sugaring, medicine, chemical industry, oil product.
The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. a novel high polymer filtering material is characterized in that, described macromolecule filter material comprises polyvinyl alcohol, blowing promotor, crosslinking agent, catalyst.
2. macromolecule filter material according to claim 1, it is characterized in that, described blowing promotor is: arlacels, alkylolamides class, APES class, high-carbon fatty alcohol polyoxyethylene ether class, polyoxyethylene carboxylate class, APG class surfactant, or in amine salt, tertiary ammonium salt, quaternary ammonium salt, hyperbranched quaternary ammonium salt, soap, sulfonate, sulfuric ester or the phosphate ester salt one or more; Described crosslinking agent is one or more in formaldehyde, acetaldehyde, glyoxal, butyraldehyde, butanedial, glutaraldehyde, the benzaldehyde; Described catalyst is one or more in hydrochloric acid, phosphoric acid, the sulfuric acid.
3. macromolecule filter material according to claim 1 is characterized in that the alcoholysis degree of described polyvinyl alcohol is between 50%～100%, and average degree of polymerization is between 500～2600.
4. the preparation method of macromolecule filter material according to claim 1, it is characterized in that, described method comprises: linear macromolecule filter material polyvinyl alcohol, blowing promotor, crosslinking agent, catalyst are carried out crosslinking curing, stir foaming formation porous foam in crosslinking curing link early stage or middle and later periods, further obtain the sponge matrix after the cross-linking curing then, carry out secondary acetal cure process after the sponge matrix is cleaned; Product after will hardening at last cleans cutting, obtains the novel high polymer filtering material.
5. the preparation method of macromolecule filter material according to claim 4 is characterized in that, described method specifically comprises:
Described 1～10 part polyvinyl alcohol inserted in 5～300 parts the water, and dissolve the formation stabilizing solution at 40～100 ℃;
0.01～10 part blowing promotor is added in the described stabilizing solution, and form lysate;
The catalyst of described 1～50 part crosslinking agent and 1～30 part is joined in the described lysate, and stir and foam, its foaming was poured mould into after 0.1～60 minute, and was to be cured under 40～105 ℃ in temperature;
The solid that solidifies back formation is shifted out mould obtain PVA sponge matrix;
Described PVA sponge matrix is immersed in the mixed liquor of 0.01～100 part crosslinking agent and catalyst, and is 40～100 ℃ of firming bodys that carry out after reacting 0.2～48 hour after hardening by cooling obtains secondary acetal cure process in temperature;
Firming body after the hardening by cooling is cleaned, obtain Pioloform, polyvinyl acetal thing perforated foams.
6. the preparation method of macromolecule filter material according to claim 5, it is characterized in that, described secondary acetal cure process also comprises: 0.01～100 part crosslinking agent is watered on described PVA sponge matrix, add 0.01～100 part the catalyst or the recovery raffinate of crosslinking agent and catalyst again; Or PVA sponge matrix is immersed in the mixed liquor of crosslinking agent and catalyst, be 40～100 ℃ of firming bodys that carry out after reacting 0.2～48 hour after hardening by cooling obtains secondary acetal cure process in temperature then.
7. the preparation method of macromolecule filter material according to claim 5 is characterized in that, described Pioloform, polyvinyl acetal degree is between 20%～99.9%; Described Pioloform, polyvinyl acetal degree is between 50%～99.9%.
8. the preparation method of macromolecule filter material according to claim 5 is characterized in that, described Pioloform, polyvinyl acetal thing foam structure is an open-celled structure, and its mean pore size is between 1 μ m～1000 μ m.
9. according to the preparation method of claim 2 or 5 described macromolecule filter materials, it is characterized in that described Pioloform, polyvinyl acetal porous foam is polyvinyl formal foam, polyvinyl acetal foam, polyvinyl butyral resin foam, polyvinyl alcohol glyoxal foam, polyvinyl alcohol contract one or more the mixture in glutaraldehyde foam, the polyvinyl alcohol condensing benzaldehyde foam of butanedial foam, polyvinyl alcohol that contracts that contracts.
10. the preparation method of macromolecule filter material according to claim 5 is characterized in that, being shaped as of described Pioloform, polyvinyl acetal thing porous foam is tabular, sheet, circle shape or erose filtering material, and its thickness that cuts is 0.5～100 millimeter.
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| CN103127776A (en) * | 2013-03-07 | 2013-06-05 | 嘉纳尔科技（北京）有限公司 | Preparation method of high-polymer filter material |
| CN103435832A (en) * | 2013-08-23 | 2013-12-11 | 华南理工大学 | Polyvinyl-alcohol imbibition sponge material and preparation method thereof |
| CN107652464A (en) * | 2016-07-25 | 2018-02-02 | 克林纳奇（荆州）高分子科技有限公司 | A kind of polyvinyl formal sponge cloth and its preparation method and application |
| CN108031310A (en) * | 2017-12-13 | 2018-05-15 | 四川银趣环保科技有限公司 | A kind of preparation method of the filtering net film based on graphene and high molecular material |
| WO2018185770A1 (en) | 2017-04-05 | 2018-10-11 | Setbone Medical Ltd. | Property changing implant |
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| CN113121937A (en) * | 2020-01-10 | 2021-07-16 | 宿迁嘉禾塑料金属制品有限公司 | Thermoplastic modified polyvinyl alcohol microporous foamed collodion and preparation process thereof |
| CN113521881A (en) * | 2021-07-23 | 2021-10-22 | 江西离子型稀土工程技术研究有限公司 | Filter cloth for treating oil-containing wastewater generated in rare earth smelting and preparation method thereof |
| CN110270161B (en) * | 2019-05-29 | 2021-11-23 | 陈明曦 | Air compressor oil-gas separation core material and preparation process thereof |
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| CN115466446A (en) * | 2022-09-16 | 2022-12-13 | 山东国材工程有限公司 | Green porous material with air filtering function and production process thereof |
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| CN102294151B (en) * | 2011-06-29 | 2013-06-12 | 无锡光旭新材料科技有限公司 | Biomass filtering material |
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| CN103435832A (en) * | 2013-08-23 | 2013-12-11 | 华南理工大学 | Polyvinyl-alcohol imbibition sponge material and preparation method thereof |
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| CN108031310A (en) * | 2017-12-13 | 2018-05-15 | 四川银趣环保科技有限公司 | A kind of preparation method of the filtering net film based on graphene and high molecular material |
| CN110270161B (en) * | 2019-05-29 | 2021-11-23 | 陈明曦 | Air compressor oil-gas separation core material and preparation process thereof |
| CN113121937A (en) * | 2020-01-10 | 2021-07-16 | 宿迁嘉禾塑料金属制品有限公司 | Thermoplastic modified polyvinyl alcohol microporous foamed collodion and preparation process thereof |
| CN113045795A (en) * | 2021-03-15 | 2021-06-29 | 中国科学院长春应用化学研究所 | Emulsion separation material, hydrophobic emulsion separation material and preparation method thereof |
| CN113521881A (en) * | 2021-07-23 | 2021-10-22 | 江西离子型稀土工程技术研究有限公司 | Filter cloth for treating oil-containing wastewater generated in rare earth smelting and preparation method thereof |
| CN113909256A (en) * | 2021-10-08 | 2022-01-11 | 北京师范大学-香港浸会大学联合国际学院 | Method for preparing novel super-waterproof filling material by utilizing waste cloth |
| CN113909256B (en) * | 2021-10-08 | 2023-02-10 | 北京师范大学-香港浸会大学联合国际学院 | Method for preparing novel super-waterproof filling material by utilizing waste cloth |
| CN114950382A (en) * | 2021-12-31 | 2022-08-30 | 波塞冬(江苏)新材料科技有限公司 | Adsorbing material prepared from waste fibers and preparation method thereof |
| CN115466446A (en) * | 2022-09-16 | 2022-12-13 | 山东国材工程有限公司 | Green porous material with air filtering function and production process thereof |
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