WO2018012684A1 - Filtre composite et procédé de fabrication associé - Google Patents

Filtre composite et procédé de fabrication associé Download PDF

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Publication number
WO2018012684A1
WO2018012684A1 PCT/KR2016/013475 KR2016013475W WO2018012684A1 WO 2018012684 A1 WO2018012684 A1 WO 2018012684A1 KR 2016013475 W KR2016013475 W KR 2016013475W WO 2018012684 A1 WO2018012684 A1 WO 2018012684A1
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Prior art keywords
filter
airgel
weight
composite filter
silane coupling
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PCT/KR2016/013475
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English (en)
Korean (ko)
Inventor
김병식
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필터로직 주식회사
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Publication of WO2018012684A1 publication Critical patent/WO2018012684A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2055—Carbonaceous material
    • B01D39/2058—Carbonaceous material the material being particulate
    • B01D39/2062—Bonded, e.g. activated carbon blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/08—Special characteristics of binders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing

Definitions

  • the present invention relates to a composite filter prepared from a composition comprising 30 to 70% by weight of the airgel and 30 to 70% by weight of the polyethylene binder, more specifically 5 to 30% by weight of the airgel, 10 to 40% by weight of the polyethylene binder and powder It relates to a composite filter prepared from a composition comprising 30 to 60% by weight of activated carbon, and performs a combination of the functions of the sun carbon filter, the membrane filter and the fucarbon filter.
  • a water purifier is a device for purifying raw water such as tap water or groundwater, and converts raw water into drinking water through various water purification methods.
  • a water purifier is provided with various filters to purify raw water, and these filters may be classified into sedimentation filters, sun carbon filters, membrane filters, and fucarbon filters according to their functions.
  • the precipitation filter is a filter for precipitating large contaminants or suspended matter (soil, rust, sand, etc.) in raw water, and the sun carbon filter is a small particle contaminants, residual chlorine, volatile organic compounds or odor generating factors A filter for adsorption and removal.
  • the membrane filter includes a hollow fiber membrane filter and a reverse osmosis membrane filter, and the hollow fiber membrane filter can effectively remove ionic substances and microorganisms, while maintaining a mineral component useful for the human body.
  • the hollow fiber membrane filter can effectively remove ionic substances and microorganisms, while maintaining a mineral component useful for the human body.
  • reverse osmosis membrane filters it is possible to minimize the cost and waste of raw water.
  • Reverse osmosis membrane filters can be used to effectively remove heavy metals, ionic substances and microorganisms by applying a reverse osmosis membrane.
  • the reverse osmosis membrane filter is expensive and has a problem in that a large amount of raw water is discarded, as well as a disadvantage that minerals useful to the human body are removed.
  • the fucarbon filter is installed at the rear end of the filter and is mainly provided to remove odor causing substances that affect the taste of purified water to improve water taste.
  • Korean Laid-Open Patent Publication No. 10-2011-0023351 discloses an internal filter body provided to have a first media (H1) by forming a synthetic fiber yarn by a spinning method in a cylindrical shape having a hollow part 110 ( 100); A synthetic fiber yarn is wound around the outer periphery of the inner filter body 100 by a stretching method to have a second media (H2), and gradually expands from the central diameter of the inner filter body 100.
  • a sediment filter assembly including; an outer filter body (200) formed on the outer periphery of the concave inlet 202 and the concave-convex portion (204) to maximize the surface area in contact with water; Doing.
  • Korean Laid-Open Patent Publication No. 10-2013-0045641 discloses a carbon block filter formed of commercially available activated carbon and an ultra high molecular weight polyethylene binder having a controlled particle size, and having a particle size distribution of 105 ⁇ m or less in the particle size distribution of the powdered activated carbon and an ultra high molecular weight polyethylene binder having a controlled particle size.
  • a carbon block filter using an ultra-high molecular weight polyethylene binder having a particle size dispersed therein characterized in that the cumulative distribution ratio of the particle size is 1: 0.8 to 1.1.
  • Korean Laid-Open Patent Publication No. 10-2013-0077686 discloses a nonwoven fabric layer; And it discloses an activated carbon sheet comprising an activated carbon slurry coating layer formed on one side or both sides of the nonwoven fabric layer.
  • the technique disclosed in the above document includes several filters in one water purifier, which causes inconvenience in handling and increasing the volume of the water purifier.
  • the present invention is to solve the problems of the prior art, and an object thereof is to provide a composite filter in which a sun carbon filter, a membrane filter and a fu carbon filter are integrated into one filter.
  • an object of the present invention is to provide a composite filter that can be easily handled by reducing the volume of the water purifier by including one filter in the water purifier.
  • an object of the present invention is to provide a composite filter which is excellent in durability, adsorptivity, water flow rate, water purification performance, etc., which can improve the life of the filter.
  • the present invention is prepared from a composition comprising 30 to 70% by weight of an airgel and 30 to 70% by weight of a polyethylene binder, and performs a combination of functions of a sun carbon filter, a membrane filter and a fucarbon filter. Provide a composite filter.
  • the present invention is prepared from a composition comprising 5 to 30% by weight of an airgel, 10 to 40% by weight of polyethylene binder and 30 to 60% by weight of powdered activated carbon, and performs a combination of functions of a sun carbon filter, a membrane filter and a fucarbon filter. It provides a composite filter.
  • the airgel is a silica airgel
  • the particle size of the silica airgel is characterized in that the pore size is 10 ⁇ 500 ⁇ m, 20 ⁇ 50nm, porosity is 50 ⁇ 99%.
  • the airgel and the powdered activated carbon are characterized in that the surface-treated with a mixture of an epoxy group-containing silane coupling agent and an acrylate group-containing silane coupling agent.
  • the composition further comprises 1 to 10% by weight of a silane coupling agent, wherein the silane coupling agent is a mixture of an epoxy group-containing silane coupling agent and an acrylate group-containing silane coupling agent do.
  • the present invention is a mixing process of mixing a composition comprising 5 to 30% by weight of an airgel, 10 to 40% by weight polyethylene binder and 30 to 60% by weight of powdered activated carbon;
  • a separation and cutting process of separating the cooled mold and the inner core to take out the composite filter from the mold and cutting it according to a standard, and compositely performing the functions of the sun carbon filter, the membrane filter, and the fu carbon filter. It provides a method for producing a filter.
  • the cooling step is characterized by improving the strength and porosity of the composite filter by quenching using gas or liquid.
  • the present invention can provide a composite filter that performs the functions of the sun carbon filter, the membrane filter and the fu carbon filter in combination by integrating the sun carbon filter, the membrane filter and the fu carbon filter into one filter.
  • the present invention includes a single filter in the water purifier, so that the handling is simple and the volume of the water purifier can be drastically reduced.
  • the present invention can provide a composite filter that is excellent in durability, adsorption, water flow rate, water purification performance, etc. can improve the life of the filter.
  • Figure 1 shows the water purification performance of the composite filter of the present invention for 100nm silica nanostock solution. After (a) 100 nm silica nanostock solution, (b) filtration with a third-party hollow fiber membrane, (c) filtration with a third-party fucarbon filter, and (d) filtration with a composite filter of the present invention.
  • Figure 2 shows the water purification performance of the composite filter of the present invention for tobacco. after (a) tobacco, (b) filtration with a third-party hollow fiber membrane, (c) filtration with a third-party fucarbon filter, and (d) filtration with a composite filter of the present invention.
  • the present invention relates to a composite filter prepared from a composition comprising 30 to 70% by weight of an airgel and 30 to 70% by weight of a polyethylene binder, and performs a combination of functions of a sun carbon filter, a membrane filter and a fucarbon filter.
  • the airgel is a highly porous nanostructure used to adsorb and remove small contaminants, residual chlorine, volatile organic compounds, heavy metals, microorganisms, odor generating factors, and the like.
  • silica airgel silica airgel, alumina airgel, carbon airgel, zirconia airgel, ruthenic airgel, iron oxide airgel, magnesium oxide airgel, tungsten oxide airgel, zinc oxide airgel, porous silica, and the like may be used.
  • the airgel may be heat-treated to remove impurities, the heat treatment temperature is preferably 50 ⁇ 500 °C.
  • silica airgel is preferably used, and silica airgel may be used without limitation in powder, beads, water dispersion paste, and the like.
  • the particle size of the silica airgel is 10 to 500 ⁇ m, the pore size is 20 to 50 nm, and the porosity is preferably 50 to 99%.
  • the material having a size of 20 nm or more can be efficiently filtered.
  • the adsorptivity, durability and water purification performance of the manufactured composite filter may be maximized.
  • silica airgel When silica airgel is used, powdered silica airgel and water dispersion paste type silica airgel can be used simultaneously to improve adsorption and durability.
  • the weight ratio of powder type silica airgel and water dispersion paste type silica airgel is used. It is preferable that it is 70-90: 10-30.
  • the polyethylene binder serves as an adhesive for connecting the airgel particles, thereby preventing the airgel particles from falling off and imparting durability to the filter.
  • the polyethylene may be used without limitation, linear polyethylene, branched polyethylene, dispersed polyethylene, low density polyethylene (LDPE), high density polyethylene (HDPE), linear low density polyethylene (LLDPE), high molecular weight polyethylene (HMWPE).
  • LDPE low density polyethylene
  • HDPE high density polyethylene
  • LLDPE linear low density polyethylene
  • HMWPE high molecular weight polyethylene
  • the weight average molecular weight of polyethylene is preferably 100,000 to 12,000,000 g / mol in view of the adsorptivity and durability of the filter.
  • polyethylene having different molecular weights may be mixed and used.
  • polyethylene having a weight average molecular weight of 400,000 to 500,000 g / mol polyethylene having a weight average molecular weight of 600,000 to 800,000 g / mol, and polyethylene having a weight average molecular weight of 900,000 to 1,000,000 g / mol may be used.
  • the content of the airgel and the polyethylene binder is preferably 30 to 70% by weight of the airgel and 30 to 70% by weight of the polyethylene binder.
  • the content of the airgel is less than 30% by weight, the adsorption characteristics are lowered, and if the content of the airgel is greater than 70% by weight, the durability of the filter is rather reduced.
  • the content of the polyethylene binder is less than 30% by weight, it is difficult to secure the durability of the filter because the binder does not effectively bind with the airgel, and when it exceeds 70% by weight, the adsorption, water flow rate, and water purification performance are lowered.
  • the composite filter of the present invention can perform the functions of the sun carbon filter, the membrane filter and the fu carbon filter by integrating the sun carbon filter, the membrane filter and the fu carbon filter into one filter.
  • a single filter is provided in the water purifier to simplify the handling and to drastically reduce the volume of the water purifier.
  • the present invention is prepared from a composition comprising 5 to 30% by weight of an airgel, 10 to 40% by weight of polyethylene binder and 30 to 60% by weight of powdered activated carbon, and performs a combination of functions of a sun carbon filter, a membrane filter and a fucarbon filter. It relates to a composite filter.
  • the airgel is a highly porous nanostructure used to adsorb and remove small contaminants, residual chlorine, volatile organic compounds, heavy metals, microorganisms, odor generating factors, and the like.
  • silica airgel silica airgel, alumina airgel, carbon airgel, zirconia airgel, ruthenic airgel, iron oxide airgel, magnesium oxide airgel, tungsten oxide airgel, zinc oxide airgel, porous silica, and the like may be used.
  • the airgel may be heat-treated to remove impurities, the heat treatment temperature is preferably 50 ⁇ 500 °C.
  • silica airgel is preferably used, and silica airgel may be used without limitation in powder, beads, water dispersion paste, and the like.
  • the particle size of the silica airgel is 10 to 500 ⁇ m, the pore size is 20 to 50 nm, and the porosity is preferably 50 to 99%.
  • the material having a size of 20 nm or more can be efficiently filtered.
  • the adsorptivity, durability and water purification performance of the manufactured composite filter may be maximized.
  • silica airgel When silica airgel is used, powdered silica airgel and water dispersion paste type silica airgel can be used simultaneously to improve adsorption and durability.
  • the weight ratio of powder type silica airgel and water dispersion paste type silica airgel is used. It is preferable that it is 70-90: 10-30.
  • the polyethylene binder serves as an adhesive for connecting the airgel particles, thereby preventing the airgel particles from falling off and imparting durability to the filter.
  • the polyethylene may be used without limitation, linear polyethylene, branched polyethylene, dispersed polyethylene, low density polyethylene (LDPE), high density polyethylene (HDPE), linear low density polyethylene (LLDPE), high molecular weight polyethylene (HMWPE).
  • LDPE low density polyethylene
  • HDPE high density polyethylene
  • LLDPE linear low density polyethylene
  • HMWPE high molecular weight polyethylene
  • the weight average molecular weight of polyethylene is preferably 100,000 to 12,000,000 g / mol in view of the adsorptivity and durability of the filter.
  • polyethylene having different molecular weights may be mixed and used.
  • polyethylene having a weight average molecular weight of 400,000 to 500,000 g / mol polyethylene having a weight average molecular weight of 600,000 to 800,000 g / mol, and polyethylene having a weight average molecular weight of 900,000 to 1,000,000 g / mol may be used.
  • the powdered activated carbon is used to adsorb and remove residual chlorine, volatile organic compounds, odor generating factors and the like.
  • the content of the airgel, polyethylene binder and powdered activated carbon is preferably 5 to 30% by weight of airgel, 10 to 40% by weight of polyethylene binder and 30 to 60% by weight of powdered activated carbon.
  • the content of the airgel is less than 5% by weight, the adsorption properties are lowered, and if it exceeds 30% by weight, the durability of the filter is rather reduced.
  • the content of the polyethylene binder is less than 10% by weight, it is difficult to secure the durability of the filter because the binder does not effectively bind with the airgel and the powdered activated carbon, and if it exceeds 40% by weight, the adsorption, water flow rate and water purification performance are rather deteriorated.
  • the content of the powdered activated carbon is less than 30% by weight, it is difficult to secure adsorption properties, and when the content of the powdered activated carbon is more than 60% by weight, durability and water purification performance are lowered.
  • the composite filter of the present invention can perform the functions of the sun carbon filter, the membrane filter and the fu carbon filter by integrating the sun carbon filter, the membrane filter and the fu carbon filter into one filter.
  • a single filter is provided in the water purifier to simplify the handling and to drastically reduce the volume of the water purifier.
  • the airgel and powdered activated carbon may be used after being surface treated with a silane coupling agent.
  • the silane coupling agent has an organic functional group capable of binding to an organic compound and a hydrolyzable group capable of reacting with an inorganic compound, and the adsorption, durability, water flow rate, Water purification performance can be improved drastically.
  • silane coupling agent an alkyl group containing silane coupling agent, an amino group containing silane coupling agent, an epoxy group containing silane coupling agent, an acrylate group containing silane coupling agent, an isocyanate group containing silane coupling agent, a mercapto group containing silane coupling agent, a fluorine group containing silane Coupling agents, vinyl group-containing silane coupling agents and the like can be used without limitation.
  • the airgel and the powdered activated carbon are preferably surface treated with a mixture of an epoxy group-containing silane coupling agent and an acrylate group-containing silane coupling agent in view of durability and adsorptivity of the filter.
  • a mixed silane coupling agent consists of 60 to 90 weight% of an epoxy group containing silane coupling agent, and 10 to 40 weight% of an acrylate group containing silane coupling agent.
  • the content of the silane coupling agent to be surface treated is preferably 1 to 10 parts by weight based on 100 parts by weight of the airgel or powdered activated carbon, and when the content is less than 1 part by weight, it is difficult to expect an improvement in adhesion. Rather, the use of a ringing agent deteriorates interfacial adhesion properties and durability.
  • composition may further comprise 1 to 10% by weight of the silane coupling agent, when the content is less than 1% by weight, the effect of the addition is insignificant, and when it exceeds 10% by weight, durability is reduced.
  • the said silane coupling agent is a mixture of an epoxy group containing silane coupling agent and an acrylate group containing silane coupling agent.
  • a mixed silane coupling agent consists of 60 to 90 weight% of an epoxy group containing silane coupling agent, and 10 to 40 weight% of an acrylate group containing silane coupling agent.
  • the composition may further include 1 to 5% by weight of a silane coupling agent oligomer prepared by previously reacting an epoxy group-containing silane coupling agent and an acrylate group-containing silane coupling agent.
  • the processability, durability, adsorptivity, etc. of the composite filter can be improved.
  • the weight average molecular weight of the silane coupling agent oligomer is preferably 1,000 to 5,000 g / mol, and when the content of the silane coupling agent oligomer is less than 1% by weight, the effect of the addition is insignificant. do.
  • composition may further comprise sodium silicate and potassium silicate.
  • the sodium silicate is used for imparting adhesion and processability, and may be used in solid phase or in solution.
  • the content of sodium silicate is 1 to 5% by weight, and the effect of addition is insignificant when the content is less than 1% by weight, and durability is lowered when it exceeds 5% by weight.
  • Potassium silicate is excellent in adhesiveness and can improve the miscibility and adhesion of the composition.
  • the content of potassium silicate is 1 to 5% by weight, the effect of addition is insignificant when the content is less than 1% by weight, and when the content is more than 5% by weight, the miscibility of the composition may be reduced to form a uniform composition. There will be no.
  • composition may further comprise graft polyethylene grafted with acrylic acid, methacrylic acid, maleic acid, maleic anhydride, and the like.
  • the graft polyethylene can improve the adsorptivity, durability, water flow rate, water purification performance, etc. of the composite filter manufactured by improving the interfacial adhesion of the airgel, powdered activated carbon and polyethylene binder.
  • the content of the graft polyethylene is 1 to 5% by weight, and when the content is less than 1% by weight, the effect of addition is insignificant, and when the content is more than 5% by weight, durability is rather deteriorated.
  • the composition of the present invention is a fiber activated carbon, ceramic powder (titanium dioxide, silica, alumina, zeolite, etc.), antibacterial agent (silica, alumina, zeolite, bentonite, silver powder, charcoal, loess, tourmaline, elvan, metal salts, etc.), heavy metal remover, Surfactants, plasticizers, lubricants, antifoams, thickeners, catalysts, diluents, dispersants, leveling agents, crosslinkers, pH adjusters, pigments, wetting agents, antioxidants, antistatic agents, release agents and the like.
  • ceramic powder titanium dioxide, silica, alumina, zeolite, etc.
  • antibacterial agent siliconca, alumina, zeolite, bentonite, silver powder, charcoal, loess, tourmaline, elvan, metal salts, etc.
  • heavy metal remover Surfactants, plasticizers, lubricants, antifoams,
  • the present invention is a mixing process of mixing a composition comprising 5 to 30% by weight of an airgel, 10 to 40% by weight polyethylene binder and 30 to 60% by weight of powdered activated carbon;
  • the present invention relates to a method for producing a composite filter which performs the functions of the sun carbon filter, the membrane filter, and the post carbon filter in combination.
  • the mixing process is a process of uniformly mixing a composition comprising 5 to 30% by weight of the airgel, 10 to 40% by weight of the polyethylene binder and 30 to 60% by weight of the powdered activated carbon, wherein the airgel and the powdered activated carbon should be uniformly distributed in the polyethylene binder. Water purification function can be efficiently exhibited.
  • stirring the composition in the mixing process it is preferable to gradually increase the stirring speed for a predetermined time from a low speed to a high speed in order to improve the water purification performance of the filter.
  • the composition is stirred at 2,000 to 3,500 rpm and gradually increased in speed to be stirred at 4,000 to 6,000 rpm, and the time for adjusting the stirring speed from low to high speed is preferably 10 to 30 minutes.
  • the composite filter manufacturing process is a process of manufacturing a composite filter by filling a mixed composition into a mold. After inserting an inner core for forming a through hole of the composite filter in an aluminum mold, the mixed composition is introduced into the mold and then The composite filter is manufactured by pressing the guide ring downward at a pressure of 2 to 50 atm using a press.
  • the heat treatment process is a process of heat-treating the entire mold in which the composite filter is formed.
  • the heat treatment process is performed without drawing the composite filter from the mold, and the heat treatment is performed at 90 to 250 ° C. for 1 to 10 hours.
  • the cooling process is a process of cooling the entire heat-treated mold, and cooling the mold through various cooling means.
  • the cooling step it is preferable to improve the strength and porosity of the composite filter by quenching using gas or liquid.
  • Separation and cutting process is a process of taking out the manufactured composite filter from the mold and cutting it according to the standard.
  • a separate jig is used to separate the external mold and the inner core to take out the composite filter from the mold, and then use a cutter. Cut the composite filter to meet the specified specifications.
  • the composite filter may perform the functions of the sun carbon filter, the membrane filter and the fu carbon filter by integrating the sun carbon filter, the membrane filter and the fu carbon filter into one filter.
  • the airgel included in the composite filter is a highly porous nanostructure that can effectively adsorb small contaminants, residual chlorine, volatile organic compounds, heavy metals, microorganisms, odor generating factors, and the like, thereby improving the adsorption of the filter (FIGS. 1 and 2). ).
  • a composition comprising 40 wt% silica airgel and 60 wt% polyethylene binder was mixed.
  • the mixed composition was filled in an aluminum mold having an inner core inserted therein, and then pressing the guide ring of the press to prepare a composite filter while pressing the composition mixed with the guide ring.
  • the entire mold in which the composite filter was molded was heat-treated at 150 ° C. for 1 hour without drawing out the composite filter from the mold.
  • the entire heat treated mold was cooled to room temperature.
  • the cooled mold and the inner core were separated, and the composite filter was taken out from the mold, and cut to fit the standard.
  • a composite filter was manufactured in the same manner as in Example 1, except that 15 wt% of silica airgel, 35 wt% of polyethylene binder, and 50 wt% of powdered activated carbon were used.
  • a composite filter was prepared in the same manner as in Example 2.
  • a silane coupling agent oligomer having a molecular weight of 4,000 g / mol was prepared by reacting 70 parts by weight of 3-glycidoxypropyltrimethoxysilane and 30 parts by weight of 3-methacryloxypropyltrimethoxysilane at 60 ° C for 24 hours.
  • a composite filter was prepared in the same manner as in Example 2, except that 15 wt% of silica airgel, 35 wt% of polyethylene binder, 47 wt% of powdered activated carbon, and 3 wt% of the silane coupling agent oligomer were used.
  • a composite filter was prepared in the same manner as in Example 2, except that 15 wt% of silica airgel, 35 wt% of polyethylene binder, 47 wt% of powdered activated carbon, and 3 wt% of graft polyethylene grafted with maleic acid were used.
  • a composite filter was manufactured in the same manner as in Example 2, except that 40 wt% polyethylene binder and 60 wt% powdered activated carbon were used.
  • a composite filter was prepared in the same manner as in Example 2, except that 2 wt% of silica airgel, 35 wt% of polyethylene binder, and 63 wt% of powdered activated carbon were used.
  • a composite filter was manufactured in the same manner as in Example 2, except that 35 wt% of silica airgel, 35 wt% of polyethylene binder, and 30 wt% of powdered activated carbon were used.
  • the chlorine removal rate of the composite filter was supplied with 2 ppm of chlorine in raw water, and the residual chlorine concentration of the filtered water was measured after 60 minutes using a residual chlorine meter, and then the removal rate was calculated by the following equation.
  • Removal rate (chlorine concentration of raw water-raw water concentration of filtered water) / chlorine concentration of raw water
  • the durability of the composite filter was judged by observing the state of the composite filter after immersing the composite filter in water at 20 ° C. for 7 days.
  • the composite filters of Examples 1 to 6 are excellent in adsorptivity, durability, water purification performance, etc. can perform a combination of the functions of the sun carbon filter, membrane filter and fucarbon filter.
  • the present invention can provide a composite filter that performs the functions of the sun carbon filter, the membrane filter and the fu carbon filter in combination by integrating the sun carbon filter, the membrane filter and the fu carbon filter into one filter.
  • the present invention includes a single filter in the water purifier, so that the handling is simple and the volume of the water purifier can be drastically reduced.
  • the present invention can provide a composite filter that is excellent in durability, adsorption, water flow rate, water purification performance, etc. can improve the life of the filter.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Water Treatment By Sorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

La présente invention concerne un filtre composite fabriqué à partir d'une composition comprenant de 30 à 70 % en poids d'un aérogel et de 30 à 70 % en poids d'un liant à base de polyéthylène et, plus particulièrement, un filtre composite qui est fabriqué à partir d'une composition comprenant 5 à 30 % en poids d'un aérogel, 10 à 40 % en poids d'un liant de polyéthylène et 30 à 60 % en poids de charbon actif en poudre, et qui effectue de manière complexe les fonctions d'un filtre de pré-carbone, d'un filtre à membrane et d'un filtre de post-carbone. La présente invention peut fournir un filtre composite qui effectue de manière complexe les fonctions d'un filtre de pré-carbone, un filtre à membrane et un filtre post-carbone par intégration d'un filtre pré-carbone, d'un filtre à membrane et d'un filtre post-carbone dans un filtre unique. En outre, étant donné que la présente invention comprend un filtre unique à l'intérieur d'un purificateur d'eau, la manipulation est simple et le volume d'un purificateur d'eau peut être considérablement réduit. En outre, la présente invention peut fournir un filtre composite capable d'améliorer la durée de vie du filtre en ayant une excellente durabilité, adsorptivité, débit, capacité de purification de l'eau et analogue.
PCT/KR2016/013475 2016-07-11 2016-11-22 Filtre composite et procédé de fabrication associé WO2018012684A1 (fr)

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KR10-2016-0087322 2016-07-11
KR1020160087322A KR101661516B1 (ko) 2016-07-11 2016-07-11 복합 필터 및 그 제조방법

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CN (1) CN107596793A (fr)
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Cited By (2)

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