CN115262094A - High-capacity carbon water filter element composite material and preparation method thereof - Google Patents
High-capacity carbon water filter element composite material and preparation method thereof Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 28
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 119
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 73
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 239000003610 charcoal Substances 0.000 claims abstract description 14
- 239000004743 Polypropylene Substances 0.000 claims description 34
- -1 polyethylene terephthalate Polymers 0.000 claims description 33
- 229920001155 polypropylene Polymers 0.000 claims description 30
- 239000000835 fiber Substances 0.000 claims description 26
- 230000009471 action Effects 0.000 claims description 18
- 239000002861 polymer material Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 238000009960 carding Methods 0.000 claims description 7
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- 239000000203 mixture Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000005098 hot rolling Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 16
- 230000035699 permeability Effects 0.000 abstract description 10
- 238000001914 filtration Methods 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 5
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- 238000001878 scanning electron micrograph Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 206010020112 Hirsutism Diseases 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/06—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by welding-together thermoplastic fibres, filaments, or yarns
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/407—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties containing absorbing substances, e.g. activated carbon
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/485—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with weld-bonding
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/016—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Water Treatment By Sorption (AREA)
- Filtering Materials (AREA)
Abstract
The invention provides a high-capacity carbon water filter core composite material and a preparation method thereof, belonging to the technical field of filter core composite materials. High appearance charcoal water filter core combined material is including the appearance charcoal layer, filter layer, the supporting layer that set gradually, hold the charcoal layer including fluffy non-woven fabrics material one, activated carbon dispersedly adheres in non-woven fabrics material one, the filter layer includes non-woven fabrics material two, the supporting layer includes non-woven fabrics material three. The invention adjusts the filling power and porosity of the carbon containing layer to meet the requirement of the material on the adhesiveness of the active carbon; by regulating and controlling the wire diameter, porosity and resistance of the filter layer, the air permeability of the product is met under the condition of unchanged resistance, so that small particle impurities in water and small particle activated carbon powder partially penetrating through the carbon containing layer are isolated on the surface of the filter layer; the supporting layer has certain stiffness, the requirement of stiffness of the filter element is provided while the filtering layer is protected from being damaged, and the filter element can be used for a long time without deformation.
Description
Technical Field
The invention belongs to the technical field of filter element composite materials, and particularly relates to a high-capacity carbon water filter element composite material and a preparation method thereof.
Background
With the development of social economy, scientific progress and improvement of the living standard of people, the requirement of people on the water quality of drinking water is continuously improved, and more families can select to install water purifiers at home in order to remove solid particles, mineral ions and special odor in tap water to obtain purer water. At present, the material for water filtration mainly takes solid particles such as an activated carbon filter element, a ceramic filter element, coconut shell activated carbon, a manganese sand filter material, a quartz sand filter material, a rare earth ceramic sand filter material, columnar activated carbon and the like as main materials, but the powdery materials are easy to leak in water to cause secondary pollution.
Disclosure of Invention
The invention aims to solve the following technical problems: at present, the material for water filtration is mainly solid particles, which are easy to leak in water to cause secondary pollution, and a high-capacity carbon water filter core composite material and a preparation method thereof are provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a high carbon water filter core combined material that holds, is including the appearance charcoal layer, filter layer, the supporting layer that set gradually, hold the charcoal layer including fluffy non-woven fabrics material one, activated carbon adhesion ground in non-woven fabrics material one, the filter layer includes non-woven fabrics material two, the supporting layer includes non-woven fabrics material three.
A preparation method of a high-capacity carbon water filter element composite material comprises the following steps:
s1, preparing a carbon containing layer, a filter layer and a support layer:
adopting polymer material fibers, opening, carding, lapping, mechanically reinforcing or hot air bonding to form a non-woven fabric material I with a fluffy structure;
adopting a polymer material, melting the polymer material, extruding the melted polymer material from a spinneret orifice under hot air, and stretching the melted polymer material through air to form a non-woven fabric material II;
adopting a polymer material, extruding the melted polymer material through a spinneret plate, rapidly drafting the melted polymer material under the action of air flow, and forming a non-woven fabric material III after hot rolling under the action of air suction;
s2, welding the first non-woven fabric material, the second non-woven fabric material and the third non-woven fabric material.
As a preferred technical scheme, in S1, the preparation method of the first nonwoven fabric material specifically comprises: polyethylene terephthalate fibers and low-melting-point fibers are mixed, and are subjected to opening, carding, lapping and mechanical reinforcement to form the composite material with a fluffy structure, wherein the pore diameter of the fluffy structure is 150-300 micrometers, the preferred pore diameter is 200-250 micrometers, the gram weight is 20-70 g/square meter, and the preferred gram weight is: 30-50 g/square meter of non-woven fabric material I, wherein the mechanical reinforcing process adopts a needling process with low needling force and needling depth.
As a preferred technical scheme, in S1, the preparation method of the first nonwoven fabric material specifically comprises: the ES fibers are subjected to opening and mixing, carding to form a net and hot air bonding to form a fiber diameter of 15-25 mu m, a gram weight of 20-70 g/square meter, preferably the gram weight: 30-50 g/square meter of non-woven fabric material I.
As a preferred technical scheme, in S1, the preparation method of the second nonwoven fabric material specifically comprises: melting polypropylene material in a screw extruder at 150-250 ℃, enabling the polypropylene material to be transversely and uniformly distributed through a die head at 210-250 ℃, blowing the polypropylene material through high-speed hot air at a spinneret orifice to obtain superfine fibers, and cooling the superfine fibers on a net curtain which is 29-33 cm away from the spinneret orifice to form a net so as to form a net with the gram weight of 30-60 g/square meter, wherein the preferred gram weight is: 40-50 g/square meter and the average diameter of the yarn is 2-7 μm.
As a preferred technical scheme, in S1, the preparation method of the nonwoven fabric material three specifically comprises: mixing and melting a polypropylene material, extruding the mixture through a spinneret plate, rapidly drafting the mixture under the action of air flow, and forming a net under the action of air suction to form a net with the gram weight of 40-60 g/square meter, wherein the preferred gram weight is as follows: 30-50 g/square meter, the yarn diameter is 20-30 μm, the transverse stiffness is 10-80 mg, the longitudinal stiffness is 30-150 mg, and the preferred transverse stiffness is as follows: 30 to 50mg, preferably with a longitudinal stiffness of: 60-90 mg of a third non-woven fabric material.
As a preferred technical scheme, in S1, the preparation method of the nonwoven fabric material three specifically comprises: mixing and melting a polypropylene material, extruding the polypropylene material through a spinneret plate, quickly drafting the polypropylene material under the action of air flow, and forming a net under the action of air suction to form a net with the yarn diameter of 20 to 30 mu m and the gram weight of 10 to 35 g/square meter, wherein the preferred gram weight is as follows: 15-25 g/square meter, the transverse stiffness is 10-50 mg, the longitudinal stiffness is 20-100 mg, and the preferred transverse stiffness is as follows: 10-30 mg, preferably longitudinal stiffness: 30-70 mg of the third layer of non-woven fabric material and the gram weight of 30-60 g/square meter, preferably the gram weight is: 35-45 g/square meter, the transverse stiffness is 10-60 mg, the longitudinal stiffness is 20-130 mg, and the preferred transverse stiffness is as follows: 20-40 mg, preferably longitudinal stiffness: 40-80 mg of a second layer of non-woven fabric material III.
As a preferable mode, in S2, the vibration wave or the heat is transmitted to the first nonwoven fabric material, the second nonwoven fabric material, and the third nonwoven fabric material, and the material surfaces are rubbed against each other or the material bonding points are melted to form fusion between the molecular layers, thereby realizing fusion of the three layers of materials.
After the technical scheme is adopted, the invention has the following advantages:
the high-carbon-containing water filter element composite material has enough hairiness on the surface of the carbon containing layer, can increase the adhesion of the powdered activated carbon, and effectively prevents the leakage of the powdered activated carbon adsorption material to cause secondary water pollution. The carbon containing layer can adsorb a certain amount of active carbon, and can remove chlorine, smell, ions, smell and other impurities in the drinking water and adsorb large-particle impurities while ensuring certain water permeability. Then a filter layer with a low pore diameter is compounded to intercept small particle impurities in water and part of small particle activated carbon powder permeating the carbon containing layer. The last layer is a supporting layer with high stiffness and good air permeability, so that the filter element is not easy to deform when the water flow is large.
According to the preparation method of the high-carbon-content water filter element composite material, the carbon-content layer bulkiness is adjusted, so that the adhesion requirement of the material on the activated carbon is met. The wire diameter, porosity and resistance of the filter layer are regulated and controlled by a production process, the air permeability of the product is met under the condition of unchanged resistance, and small-particle impurities in water and small-particle activated carbon powder partially penetrating through the carbon containing layer are isolated on the surface of the filter layer. The supporting layer is regulated and controlled through the production process, so that the supporting layer has certain stiffness, the requirement of stiffness of the filter element is provided while the filtering layer is protected from being damaged, and the filter element can be used for a long time without deformation.
According to the preparation method of the high-capacity carbon water filter core composite material, ultrasonic/hot-pressing compounding is selected in the process, substances harmful to human bodies such as glue and the like are not added, the appearance is kept, products with optimal fastness and maximized yield are developed under the condition of ensuring the material performance, and the requirements of markets and customers on the material are met.
Drawings
FIG. 1 is a scanning electron micrograph of meltblown.
Fig. 2 shows a state of bonding of the multilayer structure.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples.
Example one
The embodiment provides a high carbon water filter core combined material that holds, including the appearance charcoal layer that sets gradually, filter layer, supporting layer, hold the charcoal layer including fluffy non-woven fabrics material one, activated carbon dispersedly adheres in non-woven fabrics material one, the filter layer includes non-woven fabrics material two, the supporting layer includes non-woven fabrics material three.
The preparation method of the high-capacity carbon water filter core composite material comprises the following steps:
a carbon containing layer: the non-woven fabric material I is prepared by mixing polyethylene glycol terephthalate fibers and low-melting-point fibers in a ratio of 1. The mechanical reinforcement process adopts low needling density and low needling depth (3-5 mm) to manufacture the slightly fluffy structure of the needled cotton.
A filter layer: extruding polypropylene particles with a melt index of 1500 through a spinneret orifice under hot air, and drawing the polypropylene particles through air to form a non-woven fabric material II, wherein the gram weight is 40-50 g/square meter, the average filament diameter is 2-7 mu m, the filtration efficiency is more than or equal to 60% (5.3 cm/s, naCl,0.3 mu m), and the air permeability is more than or equal to 300L/square meter/s. The process parameters for preparing the filter layer are as follows: melting polypropylene in a screw extruder at 150-250 ℃, enabling the polypropylene to be transversely and uniformly distributed through a die head at 210-250 ℃, and blowing the polypropylene at a spinneret orifice by high-speed hot air to obtain superfine fibers, wherein the superfine fibers are cooled on a net curtain which is 29-33 cm away from the spinneret orifice to form a net. FIG. 1 is a scanning electron micrograph of meltblown.
A support layer: PP (polypropylene) is mixed and melted at the temperature of 280 ℃, extruded by a spinneret plate, quickly drawn under the action of air flow, laid into a net under the action of air suction, and finally hot-rolled to form the third non-woven fabric material with the gram weight of 30-50 g/square meter, the yarn diameter of 20-30 mu m, the transverse stiffness of 30-50 mg and the longitudinal stiffness of 60-90 mg. The process parameters for preparing the supporting layer are as follows: the speed of the vehicle is 15-25 m/min, the temperature of the box body is 250-260 ℃, and the melt pressure is 6-10 MPa.
The composite process of the carbon containing layer, the filter layer and the support layer utilizes high-frequency vibration waves (15 KHZ) or heat transfer to the surfaces of three materials to be welded, and under the conditions of the vehicle speed of 10-15 m/min and the pressure of 2000N, the surfaces of the materials are mutually rubbed or thermally bonded to form fusion between the molecular layers, so that the three layers of materials are welded.
The high-volume carbon water filter element composite material has the gram weight of 105-125 g/square meter, the thickness of 0.45-0.55 mm, the longitudinal tensile strength of more than or equal to 100N/50mm, the transverse tensile strength of more than or equal to 50N/50mm and the air permeability of 10-15 cc/cm/sec.
After the high-capacity carbon water filter element composite material is made into a filter element device, the initial flow is 6.21L/min, the leakage amount of the powder activated carbon is 0.05NTU after 10min, and when the water plug is switched, the leakage amount of the activated carbon is 2NTU, and no activated carbon flows out visually.
Example two:
the embodiment provides a high carbon water filter core combined material that holds, including the appearance charcoal layer that sets gradually, filter layer, supporting layer, hold the charcoal layer including fluffy non-woven fabrics material one, activated carbon dispersedly adheres in non-woven fabrics material one, the filter layer includes non-woven fabrics material two, the supporting layer includes non-woven fabrics material three.
The preparation method of the high-capacity carbon water filter element composite material comprises the following steps:
a carbon containing layer: the fabric is prepared from two types of thick and thin ES (PE/PP) fibers according to the proportion of 2D 3D =1, and the fabric is subjected to opening and mixing, carding to form a net, and hot air bonding to form a first non-woven fabric material with the yarn diameter of 15-25 mu m and the gram weight of 30-50 g/square meter. The technological parameters for preparing the carbon containing layer are as follows: the vehicle speed is 30m/min, the drying tunnel temperature is 110 ℃, and the ironing temperature is 163 ℃.
A filter layer: extruding polypropylene particles with the melt index of 1500 through a spinneret orifice under hot air, and drawing the polypropylene particles through air to form a non-woven fabric material II, wherein the gram weight is 40-50 g/square meter, the average filament diameter is 2-7 mu m, the filtration efficiency is more than or equal to 60% (5.3 cm/s, naCl,0.3 mu m), and the air permeability is more than or equal to 300L/square meter/s. The process parameters for preparing the filter layer are as follows: melting polypropylene in a screw extruder at 150-250 ℃, enabling the polypropylene to be transversely and uniformly distributed through a die head at 210-250 ℃, and blowing the polypropylene at a spinneret orifice by high-speed hot air to obtain superfine fibers, wherein the superfine fibers are cooled on a net curtain which is 29-33 cm away from the spinneret orifice to form a net.
A support layer: PP (polypropylene) is mixed and melted at the temperature of 280 ℃, extruded by a spinneret plate, rapidly drawn under the action of air flow, laid into a net under the action of air suction, and finally hot-rolled to form a third non-woven fabric material with the gram weight of 30-50 g/square meter, the yarn diameter of 20-30 mu m, the transverse stiffness of 30-50 mg and the longitudinal stiffness of 60-90 mg. The process parameters for preparing the supporting layer are as follows: the speed of the vehicle is 15-25 m/min, the temperature of the box body is 250-260 ℃, and the melt pressure is 6-10 MPa.
The carbon containing layer, the filter layer and the support layer are compounded to transfer high-frequency vibration waves (15 KHZ) or heat to the surfaces of three materials to be welded, and the surfaces of the materials are rubbed with each other to form fusion between molecular layers under the conditions of the vehicle speed of 10-15 m/min and the pressure of 2000N, so that the three layers of materials are welded.
The high-volume carbon water filter element composite material has the gram weight of 121-149 g/square meter, the thickness of 0.53-0.63 mm, the longitudinal tensile strength of more than or equal to 150N/50mm, the transverse tensile strength of more than or equal to 50N/50mm and the air permeability of 12-15 cc/cm/sec.
After the high-capacity carbon water filter element composite material is made into a filter element device, the initial flow is 6.24L/min, the leakage rate of the powdered activated carbon is 0.06NTU after 10min, and when the water plug is switched, the leakage rate of the activated carbon is 2NTU, and no activated carbon flows out visually.
Example three:
the embodiment provides a high carbon water filter core combined material that holds, including the appearance charcoal layer that sets gradually, filter layer, supporting layer, hold the charcoal layer including fluffy non-woven fabrics material one, activated carbon dispersedly adheres in non-woven fabrics material one, the filter layer includes non-woven fabrics material two, the supporting layer includes non-woven fabrics material three.
A carbon containing layer: the non-woven fabric material I is formed by mixing polyethylene terephthalate fibers and low-melting-point fibers in a ratio of 1. The mechanical reinforcement process adopts low needling density and low needling depth (3-5 mm) to manufacture the slightly fluffy needled cotton.
A filter layer: extruding polypropylene particles with a melt index of 1500 through a spinneret orifice under hot air, and drawing the polypropylene particles through air to form a non-woven fabric material II, wherein the gram weight is 40-50 g/square meter, the average filament diameter is 2-7 mu m, the filtration efficiency is more than or equal to 60% (5.3 cm/s, naCl,0.3 mu m), and the air permeability is more than or equal to 300L/square meter/s. The process parameters for preparing the filter layer are as follows: melting polypropylene in a screw extruder at 150-250 ℃, enabling the polypropylene to be transversely and uniformly distributed through a die head at 210-250 ℃, and blowing the polypropylene at a spinneret orifice by high-speed hot air to obtain superfine fibers, wherein the superfine fibers are cooled on a net curtain which is 29-33 cm away from the spinneret orifice to form a net.
A support layer: the third non-woven fabric material is a double-layer structure, PP (polypropylene) is mixed and melted at the temperature of 280 ℃, extruded through a spinneret plate, quickly drawn under the action of air flow, formed into a net under the action of air suction, and hot-rolled to form a first layer of non-woven fabric material with the filament diameter of 20-30 mu m, the gram weight of 15-25 g/square meter, the transverse stiffness of 10-30 mg and the longitudinal stiffness of 30-70 mg and a second layer of non-woven fabric material with the gram weight of 35-45 g/square meter, the transverse stiffness of 20-40 mg and the longitudinal stiffness of 40-80 mg. The process parameters for preparing the supporting layer are as follows: the speed of the vehicle is 15-25 m/min, the temperature of the box body is 250-260 ℃, and the melt pressure is 6-10 MPa.
The carbon containing layer, the filter layer and the support layer are compounded to transfer high-frequency vibration waves (15 KHZ) or heat to the surfaces of three materials to be welded, and the surfaces of the materials are mutually rubbed or thermally bonded to form fusion between the molecular layers under the conditions of the vehicle speed of 10-15 m/min and the pressure of 2000N, so that the three layers of materials are welded.
The high-volume carbon water filter element composite material has the gram weight of 111-139 g/square meter and the thickness of 0.50-0.60 mm, the longitudinal tensile strength of not less than 120N/50mm, the transverse tensile strength of not less than 70N/50mm and the air permeability of 14-15 cc/cm/sec.
After the high-capacity carbon water filter element composite material is made into a filter element device, the initial flow is 6.8L/min, the powder activated carbon leakage (NTU) is 0.02NTU after 10min, when a water plug is opened, the activated carbon leakage is 0.05NTU, and no activated carbon flows out visually.
In addition to the preferred embodiments described above, there are other embodiments of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the present invention, which is defined in the appended claims.
Claims (8)
1. The utility model provides a high appearance charcoal water filter core combined material which characterized in that, is including the appearance charcoal layer, filter layer, the supporting layer that set gradually, hold the charcoal layer including fluffy non-woven fabrics material one, activated carbon dispersedly adheres in non-woven fabrics material one, the filter layer includes non-woven fabrics material two, the supporting layer includes non-woven fabrics material three.
2. A preparation method of a high-capacity carbon water filter element composite material is characterized by comprising the following steps:
s1, preparing a carbon containing layer, a filter layer and a support layer:
adopting polymer material fibers, opening, carding, lapping, mechanically reinforcing or hot air bonding to form a non-woven fabric material I with a fluffy structure;
adopting a polymer material, melting the polymer material, extruding the melted polymer material from a spinneret orifice under hot air, and stretching the melted polymer material through air to form a non-woven fabric material II;
adopting a polymer material, extruding the melted polymer material through a spinneret plate, rapidly drafting the melted polymer material under the action of air flow, and forming a non-woven fabric material III after hot rolling under the action of air suction;
s2, welding the first non-woven fabric material, the second non-woven fabric material and the third non-woven fabric material.
3. The preparation method of the high-capacity carbon water filter element composite material according to claim 2, wherein in the step S1, the preparation method of the non-woven fabric material I specifically comprises the following steps: mixing polyethylene terephthalate fibers and low-melting-point fibers, and opening, carding, lapping and mechanically reinforcing to form the fluffy fiber with a fluffy structure, wherein the pore diameter is 150-300 mu m, the preferred pore diameter is 200-250 mu m, the gram weight is 20-70 g/square meter, and the preferred gram weight is: 30-50 g/square meter of non-woven fabric material I, wherein the mechanical reinforcing process adopts a needling process with low needling force and needling depth.
4. The preparation method of the high-capacity carbon water filter element composite material according to claim 2, wherein in the step S1, the preparation method of the non-woven fabric material I specifically comprises the following steps: the ES fibers are subjected to opening and mixing, carding to form a net and hot air bonding to form a fiber diameter of 15-25 mu m, a gram weight of 20-70 g/square meter, preferably the gram weight: 30-50 g/square meter of nonwoven fabric material I.
5. The preparation method of the high-capacity carbon water filter element composite material according to claim 2, wherein in S1, the preparation method of the non-woven fabric material II comprises the following specific steps: melting polypropylene material in a screw extruder at 150-250 ℃, enabling the polypropylene material to be transversely and uniformly distributed through a die head at 210-250 ℃, blowing the polypropylene material through high-speed hot air at a spinneret orifice to obtain superfine fibers, and cooling the superfine fibers on a net curtain which is 29-33 cm away from the spinneret orifice to form a net so as to form a net with the gram weight of 30-60 g/square meter, wherein the preferred gram weight is: 40-50 g/square meter and the average diameter of the yarn is 2-7 μm.
6. The preparation method of the high-capacity carbon water filter element composite material according to claim 2, wherein in S1, the preparation method of the non-woven fabric material III specifically comprises the following steps: mixing and melting a polypropylene material, extruding the mixture through a spinneret plate, rapidly drafting the mixture under the action of air flow, and forming a net under the action of air suction to form a net with the gram weight of 40-60 g/square meter, wherein the preferred gram weight is as follows: 30-50 g/square meter, the yarn diameter is 20-30 μm, the transverse stiffness is 10-80 mg, the longitudinal stiffness is 30-150 mg, and the preferred transverse stiffness is as follows: 30-50 mg, preferably longitudinal stiffness: 60-90 mg of non-woven fabric material III.
7. The preparation method of the high-capacity carbon water filter element composite material according to claim 2, wherein in S1, the preparation method of the non-woven fabric material III specifically comprises the following steps: mixing and melting a polypropylene material, extruding the mixture through a spinneret plate, rapidly drafting the mixture under the action of air flow, and forming a net under the action of air suction to form a net with the diameter of 20-30 mu m and the gram weight of 10-35 g/square meter, wherein the preferred gram weight is as follows: 15-25 g/square meter, the transverse stiffness is 10-50 mg, the longitudinal stiffness is 20-100 mg, and the preferred transverse stiffness is as follows: 10 to 30mg, preferably having a longitudinal stiffness of: 30-70 mg of the third layer of non-woven fabric material, the gram weight of the third layer of non-woven fabric material is 30-60 g/square meter, preferably the gram weight is: 35-45 g/square meter, the transverse stiffness is 10-60 mg, the longitudinal stiffness is 20-130 mg, and the preferred transverse stiffness is as follows: 20 to 40mg, preferably with a longitudinal stiffness of: 40-80 mg of a second layer of non-woven material III.
8. The method for preparing a high-capacity carbon water filter element composite material according to claim 2, wherein in S2, vibration waves or heat is transmitted to the surfaces of the first non-woven fabric material, the second non-woven fabric material and the third non-woven fabric material, so that the surfaces of the materials are mutually rubbed or the bonding points of the materials are melted to form the fusion between molecular layers, thereby realizing the fusion of the three layers of materials.
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