WO2018012684A1 - Composite filter and manufacturing method therefor - Google Patents

Composite filter and manufacturing method therefor 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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French (fr)
Korean (ko)
Inventor
김병식
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필터로직 주식회사
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Publication of WO2018012684A1 publication Critical patent/WO2018012684A1/en

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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 Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Engineering & Computer Science (AREA)
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Abstract

The present invention relates to a composite filter made from a composition comprising 30-70wt% of an aerogel and 30-70wt% of a polyethylene binder and, more particularly, to a composite filter which is made from a composition comprising 5-30wt% of an aerogel, 10-40wt% of a polyethylene binder and 30-60wt% of powdered activated carbon, and which complexly performs the functions of a pre-carbon filter, a membrane filter and a post-carbon filter. The present invention may provide a composite filter that complexly performs the functions of a pre-carbon filter, a membrane filter and a post-carbon filter by integrating a pre-carbon filter, a membrane filter and a post-carbon filter into a single filter. Further, since the present invention includes a single filter inside a water purifier, the handling is simple and the volume of a water purifier can be dramatically reduced. In addition, the present invention can provide a composite filter capable of improving the lifespan of the filter due to having an excellent durability, adsorptivity, flow rate, water purification capability and the like.

Description

복합 필터 및 그 제조방법Compound filter and its manufacturing method
본 발명은 에어로겔 30~70중량% 및 폴리에틸렌 바인더 30~70중량%를 포함하는 조성물로부터 제조되는 복합 필터에 관한 것으로, 더욱 상세하게는 에어로겔 5~30중량%, 폴리에틸렌 바인더 10~40중량% 및 분말 활성탄 30~60중량%를 포함하는 조성물로부터 제조되고, 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터에 관한 것이다.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.
정수기는 수돗물이나 지하수와 같은 원수를 정수하는 장치로서, 다양한 정수방법을 통하여 원수를 음용수로 전환하여 제공한다.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.
정수를 생성하기 위해서는 침전, 여과, 살균 등의 과정을 거쳐야 하며, 이러한 과정들을 통해 유해물질이 대부분 제거된다.In order to produce purified water, it is necessary to go through the process of precipitation, filtration and sterilization, and most of the harmful substances are removed through these processes.
일반적으로 정수기에는 원수를 정수하기 위하여 다양한 필터들이 구비되며, 이러한 필터들은 그 기능에 따라 침전 필터, 선카본 필터, 멤브레인 필터, 후카본 필터 등으로 구분될 수 있다.In general, 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.
상기 침전 필터는 원수 내의 입자가 큰 오염물질이나 부유물질(흙, 녹, 모래 등)을 침전시키기 위한 필터이며, 선카본 필터는 입자가 작은 오염물질, 잔류 염소, 휘발성 유기 화합물이나 냄새 발생 인자들을 흡착하여 제거하기 위한 필터이다.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.
멤브레인 필터로는 중공사막 필터와 역삼투압 멤브레인 필터가 있으며, 중공사막 필터는 이온성 물질이나 미생물을 효과적으로 제거할 수 있는 반면 인체에 유용한 미네랄 성분을 유지하는 장점을 갖고 있다. 또한 역삼투압 멤브레인 필터에 비해 저렴하고 낭비되는 원수를 최소화할 수 있다. 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. In addition, compared to reverse osmosis membrane filters, it is possible to minimize the cost and waste of raw water.
역삼투압 멤브레인 필터는 역삼투막을 적용하여 중금속, 이온성 물질 그리고 미생물을 효과적으로 제거하기 위해 사용될 수 있다. 그러나 역삼투압 멤브레인 필터는 고가이며 많은 양의 원수가 버려지는 문제가 있을 뿐 아니라 인체에 유용한 미네랄이 제거되는 단점이 있다. Reverse osmosis membrane filters can be used to effectively remove heavy metals, ionic substances and microorganisms by applying a reverse osmosis membrane. However, 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.
상기 후카본 필터는 필터의 제일 후단에 설치되는 것으로서 주로 정수의 맛에 영향을 미치는 냄새 유발 물질을 제거하여 물맛을 향상시키기 위해 구비된다. 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.
정수기 필터와 관련하여 한국공개특허 제10-2011-0023351호는 방사방법에 의한 합성섬유사를 중공부(110)를 가진 원통형상으로 형성하여 제1메디아(H1)를 가지도록 마련된 내부필터체(100)와; 상기 내부필터체(100)의 외주연 둘레를 따라 연신(延伸)방법에 의한 합성섬유사를 감아 제2메디아(H2)를 가지도록 마련되고, 상기 내부필터체(100)의 중심직경으로부터 점차 확대되는 형상으로 형성되며, 외주연에는 요입부(202)와 요철부(204)가 연속적으로 형성되어 물과 접촉되는 표면적이 최대화되도록 형성된 외부필터체(200);를 포함하는 세디멘트필터 조립체를 개시하고 있다.In relation to the water purifier filter, 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. Disclosed is 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.
또한 한국공개특허 제10-2013-0045641호는 입도가 조절된 상용화된 활성탄과 초고분자량 폴리에틸렌 바인더로 성형한 카본블록 필터에서, 분말 활성탄과 입도가 조절된 초고분자량 폴리에틸렌 바인더의 입도 분포중 105㎛ 이하 입도의 누적분포 비가 1:0.8~1.1인 것을 특징으로 하는 입도를 분산시킨 초고분자량 폴리에틸렌 바인더를 이용한 카본블록필터를 개시하고 있다. Also, 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 μm 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. Disclosed is 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.
한편 한국공개특허 제10-2013-0077686호는 부직포층; 및 상기 부직포층의 일면 또는 양면에 형성된 활성탄 슬러리 코팅층을 포함하는 활성탄 시트를 개시하고 있다.Meanwhile, 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.
그러나 상기 문헌에 개시된 기술은 하나의 정수기 내에 여러 개의 필터를 포함하고 있어 취급이 불편하고 정수기의 부피가 증가하는 문제점이 있다.However, 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.
또한 정수기의 통수량과 정수성능이 저하되어 필터의 수명이 단축되는 단점이 존재한다. In addition, there is a disadvantage that the water life of the water purifier and the water purification performance is reduced to shorten the life of the filter.
본 발명은 상기 종래 기술의 문제점을 해결하기 위한 것으로서, 선카본 필터, 멤브레인 필터 및 후카본 필터를 하나의 필터로 일체화한 복합 필터를 제공하는데 그 목적이 있다. 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.
또한 본 발명은 정수기 내에 하나의 필터를 포함함으로써 취급이 간단하고 정수기의 부피를 획기적으로 줄일 수 있는 복합 필터를 제공하는 것을 목적으로 한다. In addition, 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.
아울러 본 발명은 내구성, 흡착성, 통수량, 정수성능 등이 우수하여 필터의 수명을 개선할 수 있는 복합 필터를 제공하는 것을 목적으로 한다. In addition, 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.
상기와 같은 목적을 달성하기 위하여 본 발명은 에어로겔 30~70중량% 및 폴리에틸렌 바인더 30~70중량%를 포함하는 조성물로부터 제조되고, 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터를 제공한다.In order to achieve the above object, 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.
또한 본 발명은 에어로겔 5~30중량%, 폴리에틸렌 바인더 10~40중량% 및 분말 활성탄 30~60중량%를 포함하는 조성물로부터 제조되고, 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터를 제공한다.In another aspect, 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.
본 발명의 일 실시예에 있어서, 상기 에어로겔은 실리카 에어로겔이고, 상기 실리카 에어로겔의 입자 크기는 10~500㎛이며, 기공 크기는 20~50nm이며, 기공율은 50~99%인 것을 특징으로 한다.In one embodiment of the present invention, the airgel is a silica airgel, the particle size of the silica airgel is characterized in that the pore size is 10 ~ 500㎛, 20 ~ 50nm, porosity is 50 ~ 99%.
본 발명의 일 실시예에 있어서, 상기 에어로겔 및 분말 활성탄은 에폭시기 함유 실란 커플링제 및 아크릴레이트기 함유 실란 커플링제의 혼합물로 표면 처리되어 사용되는 것을 특징으로 한다.In one embodiment of the present invention, 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.
본 발명의 일 실시예에 있어서, 상기 조성물은 실란 커플링제 1~10중량%를 추가로 포함하며, 상기 실란 커플링제는 에폭시기 함유 실란 커플링제 및 아크릴레이트기 함유 실란 커플링제의 혼합물인 것을 특징으로 한다. In one embodiment of the present invention, 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.
또한 본 발명은 에어로겔 5~30중량%, 폴리에틸렌 바인더 10~40중량% 및 분말 활성탄 30~60중량%를 포함하는 조성물을 혼합하는 혼합공정; 상기 혼합된 조성물을 내부 코어가 삽입된 금형에 충전한 후 프레스의 가이드링을 가압하여 상기 가이드링이 혼합된 조성물을 가압하면서 복합 필터를 제조하는 복합 필터 제조공정; 상기 금형에서 복합 필터를 인출하지 않고 복합 필터가 성형된 금형 전체를 열처리하는 열처리공정; 상기 열처리된 금형 전체를 냉각시키는 냉각공정; 및 상기 냉각된 금형과 내부 코어를 분리하여 복합 필터를 금형으로부터 인출한 후 규격에 맞추어 절단하는 분리 및 절단공정을 포함하고, 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터의 제조방법을 제공한다.In another aspect, 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 composite filter manufacturing process of manufacturing a composite filter while pressing the guide ring of the press by pressing the guide ring of the press after filling the mixed composition with a mold into which an inner core is inserted; A heat treatment step of heat-treating the entire mold in which the composite filter is formed without drawing out the composite filter from the mold; A cooling step of cooling the entire heat-treated mold; And 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.
본 발명의 일 실시예에 있어서, 상기 냉각공정은 기체나 액체를 사용하여 급냉함으로써 복합 필터의 강도와 기공율을 향상시키는 것을 특징으로 한다. In one embodiment of the present invention, the cooling step is characterized by improving the strength and porosity of the composite filter by quenching using gas or liquid.
본 발명은 선카본 필터, 멤브레인 필터 및 후카본 필터를 하나의 필터로 일체화함으로써 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터를 제공할 수 있다. 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.
또한 본 발명은 정수기 내에 하나의 필터를 포함함으로써 취급이 간단하고 정수기의 부피를 획기적으로 줄일 수 있다. In addition, 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.
아울러 본 발명은 내구성, 흡착성, 통수량, 정수성능 등이 우수하여 필터의 수명을 개선할 수 있는 복합 필터를 제공할 수 있다.In addition, 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.
도 1은 100nm 실리카 나노 원액에 대한 본 발명의 복합 필터의 정수성능을 나타낸다. (a) 100nm 실리카 나노 원액, (b) 타사 중공사막으로 여과한 후, (c) 타사 후카본 필터로 여과한 후, (d) 본 발명의 복합 필터로 여과한 후Figure 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.
도 2는 담배물에 대한 본 발명의 복합 필터의 정수성능을 나타낸다. (a) 담배물, (b) 타사 중공사막으로 여과한 후, (c) 타사 후카본 필터로 여과한 후, (d) 본 발명의 복합 필터로 여과한 후Figure 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.
이하 실시예를 바탕으로 본 발명을 상세히 설명한다. 본 발명에 사용된 용어, 실시예 등은 본 발명을 보다 구체적으로 설명하고 통상의 기술자의 이해를 돕기 위하여 예시된 것에 불과할 뿐이며, 본 발명의 권리범위 등이 이에 한정되어 해석되어서는 안 된다.Hereinafter, the present invention will be described in detail with reference to Examples. The terms, examples, etc. used in the present invention are merely illustrated to explain the present invention in more detail and to help those skilled in the art, and the scope of the present invention is not limited thereto.
본 발명에 사용되는 기술 용어 및 과학 용어는 다른 정의가 없다면 이 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 통상적으로 이해하고 있는 의미를 나타낸다.Technical terms and scientific terms used in the present invention represent the meanings that are commonly understood by those of ordinary skill in the art unless otherwise defined.
본 발명은 에어로겔 30~70중량% 및 폴리에틸렌 바인더 30~70중량%를 포함하는 조성물로부터 제조되고, 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터에 관한 것이다. 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.
상기 에어로겔은 고다공성 나노구조체로서 입자가 작은 오염물질, 잔류 염소, 휘발성 유기 화합물, 중금속, 미생물, 냄새 발생 인자 등을 흡착하여 제거하기 위하여 사용된다. 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.
상기 에어로겔로는 실리카 에어로겔, 알루미나 에어로겔, 카본 에어로겔, 지르코니아 에어로겔, 루테니아 에어로겔, 산화철 에어로겔, 산화마그네슘 에어로겔, 산화텅스텐 에어로겔, 산화아연 에어로겔, 다공성 실리카 등이 사용될 수 있다. As the 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.
상기 에어로겔은 불순물 제거를 위하여 열처리 될 수 있으며, 열처리 온도는 50~500℃인 것이 바람직하다. The airgel may be heat-treated to remove impurities, the heat treatment temperature is preferably 50 ~ 500 ℃.
특히 실리카 에어로겔이 사용되는 것이 바람직하며, 실리카 에어로겔은 분말, 비드, 수분산 페이스트 등이 제한 없이 사용될 수 있다. In particular, silica airgel is preferably used, and silica airgel may be used without limitation in powder, beads, water dispersion paste, and the like.
실리카 에어로겔의 입자 크기는 10~500㎛이고, 기공 크기는 20~50nm이며, 기공율은 50~99%인 것이 바람직하다. The particle size of the silica airgel is 10 to 500 µm, the pore size is 20 to 50 nm, and the porosity is preferably 50 to 99%.
실리카 에어로겔의 기공 크기가 20~50nm이므로, 20nm 이상의 크기를 가지는 물질을 효율적으로 여과할 수 있다.Since the pore size of the silica airgel is 20 to 50 nm, the material having a size of 20 nm or more can be efficiently filtered.
실리카 에어로겔의 입자 크기, 기공 크기 및 기공율이 상기 수치 범위를 만족하는 경우 제조된 복합 필터의 흡착성, 내구성 및 정수성능이 극대화될 수 있다. When the particle size, pore size and porosity of the silica airgel satisfy the above numerical range, the adsorptivity, durability and water purification performance of the manufactured composite filter may be maximized.
실리카 에어로겔이 사용되는 경우, 흡착성과 내구성의 향상을 위해 분말 형태의 실리카 에어로겔과 수분산 페이스트 형태의 실리카 에어로겔을 동시에 사용할 수 있으며, 이 경우 분말 형태의 실리카 에어로겔과 수분산 페이스트 형태의 실리카 에어로겔의 중량비는 70~90:10~30인 것이 바람직하다. When silica airgel is used, powdered silica airgel and water dispersion paste type silica airgel can be used simultaneously to improve adsorption and durability.In this case, 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.
폴리에틸렌 바인더는 에어로겔 입자를 연결시키는 접착제의 역할을 하는 것으로서, 에어로겔 입자의 탈락을 방지하고 필터에 내구성을 부여한다. 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.
상기 폴리에틸렌은 선형 폴리에틸렌, 가지형 폴리에틸렌, 분산형 폴리에틸렌, 저밀도 폴리에틸렌(LDPE), 고밀도 폴리에틸렌(HDPE), 선형 저밀도 폴리에틸렌(LLDPE), 고분자량 폴리에틸렌(HMWPE) 등이 제한 없이 사용될 수 있다. 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).
폴리에틸렌의 중량평균분자량은 100,000~12,000,000g/mol인 것이 필터의 흡착성 및 내구성 측면에서 바람직하다. 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.
필터의 흡착성과 정수성능을 향상시키기 위하여 분자량이 다른 폴리에틸렌을 혼합하여 사용할 수 있다. In order to improve the adsorption and water purification performance of the filter, polyethylene having different molecular weights may be mixed and used.
예를 들면, 중량평균분자량이 400,000~500,000g/mol인 폴리에틸렌, 중량평균분자량이 600,000~800,000g/mol인 폴리에틸렌 및 중량평균분자량이 900,000~1,000,000g/mol인 폴리에틸렌이 혼합되어 사용될 수 있다.For example, 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.
상기 에어로겔과 폴리에틸렌 바인더의 함량은 에어로겔 30~70중량% 및 폴리에틸렌 바인더 30~70중량%인 것이 바람직하다. 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.
에어로겔의 함량이 30중량% 미만인 경우 흡착 특성이 저하되고, 70중량%를 초과하는 경우 필터의 내구성이 오히려 저하된다.If 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.
폴리에틸렌 바인더의 함량이 30중량% 미만인 경우 바인더가 에어로겔과 효과적으로 결합하지 못하여 필터의 내구성을 확보하기 어렵고, 70중량%를 초과하는 경우 흡착성, 통수량 및 정수성능이 오히려 저하된다.When 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.
본 발명의 복합 필터는 선카본 필터, 멤브레인 필터 및 후카본 필터를 하나의 필터로 일체화함으로써 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행할 수 있다. 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.
본 발명은 정수기 내에 하나의 복합 필터를 구비함으로써 취급이 간단하고 정수기의 부피를 획기적으로 줄일 수 있다. According to the present invention, a single filter is provided in the water purifier to simplify the handling and to drastically reduce the volume of the water purifier.
또한 본 발명은 에어로겔 5~30중량%, 폴리에틸렌 바인더 10~40중량% 및 분말 활성탄 30~60중량%를 포함하는 조성물로부터 제조되고, 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터에 관한 것이다. In another aspect, 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.
상기 에어로겔은 고다공성 나노구조체로서 입자가 작은 오염물질, 잔류 염소, 휘발성 유기 화합물, 중금속, 미생물, 냄새 발생 인자 등을 흡착하여 제거하기 위하여 사용된다. 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.
상기 에어로겔로는 실리카 에어로겔, 알루미나 에어로겔, 카본 에어로겔, 지르코니아 에어로겔, 루테니아 에어로겔, 산화철 에어로겔, 산화마그네슘 에어로겔, 산화텅스텐 에어로겔, 산화아연 에어로겔, 다공성 실리카 등이 사용될 수 있다. As the 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.
상기 에어로겔은 불순물 제거를 위하여 열처리 될 수 있으며, 열처리 온도는 50~500℃인 것이 바람직하다. The airgel may be heat-treated to remove impurities, the heat treatment temperature is preferably 50 ~ 500 ℃.
특히 실리카 에어로겔이 사용되는 것이 바람직하며, 실리카 에어로겔은 분말, 비드, 수분산 페이스트 등이 제한 없이 사용될 수 있다. In particular, silica airgel is preferably used, and silica airgel may be used without limitation in powder, beads, water dispersion paste, and the like.
실리카 에어로겔의 입자 크기는 10~500㎛이고, 기공 크기는 20~50nm이며, 기공율은 50~99%인 것이 바람직하다. The particle size of the silica airgel is 10 to 500 µm, the pore size is 20 to 50 nm, and the porosity is preferably 50 to 99%.
실리카 에어로겔의 기공 크기가 20~50nm이므로, 20nm 이상의 크기를 가지는 물질을 효율적으로 여과할 수 있다.Since the pore size of the silica airgel is 20 to 50 nm, the material having a size of 20 nm or more can be efficiently filtered.
실리카 에어로겔의 입자 크기, 기공 크기 및 기공율이 상기 수치 범위를 만족하는 경우 제조된 복합 필터의 흡착성, 내구성 및 정수성능이 극대화될 수 있다. When the particle size, pore size and porosity of the silica airgel satisfy the above numerical range, the adsorptivity, durability and water purification performance of the manufactured composite filter may be maximized.
실리카 에어로겔이 사용되는 경우, 흡착성과 내구성의 향상을 위해 분말 형태의 실리카 에어로겔과 수분산 페이스트 형태의 실리카 에어로겔을 동시에 사용할 수 있으며, 이 경우 분말 형태의 실리카 에어로겔과 수분산 페이스트 형태의 실리카 에어로겔의 중량비는 70~90:10~30인 것이 바람직하다. When silica airgel is used, powdered silica airgel and water dispersion paste type silica airgel can be used simultaneously to improve adsorption and durability.In this case, 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.
폴리에틸렌 바인더는 에어로겔 입자를 연결시키는 접착제의 역할을 하는 것으로서, 에어로겔 입자의 탈락을 방지하고 필터에 내구성을 부여한다. 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.
상기 폴리에틸렌은 선형 폴리에틸렌, 가지형 폴리에틸렌, 분산형 폴리에틸렌, 저밀도 폴리에틸렌(LDPE), 고밀도 폴리에틸렌(HDPE), 선형 저밀도 폴리에틸렌(LLDPE), 고분자량 폴리에틸렌(HMWPE) 등이 제한 없이 사용될 수 있다. 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).
폴리에틸렌의 중량평균분자량은 100,000~12,000,000g/mol인 것이 필터의 흡착성 및 내구성 측면에서 바람직하다. 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.
필터의 흡착성과 정수성능을 향상시키기 위하여 분자량이 다른 폴리에틸렌을 혼합하여 사용할 수 있다. In order to improve the adsorption and water purification performance of the filter, polyethylene having different molecular weights may be mixed and used.
예를 들면, 중량평균분자량이 400,000~500,000g/mol인 폴리에틸렌, 중량평균분자량이 600,000~800,000g/mol인 폴리에틸렌 및 중량평균분자량이 900,000~1,000,000g/mol인 폴리에틸렌이 혼합되어 사용될 수 있다.For example, 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.
상기 분말 활성탄은 잔류 염소, 휘발성 유기 화합물, 냄새 발생 인자 등을 흡착하여 제거하기 위하여 사용된다. The powdered activated carbon is used to adsorb and remove residual chlorine, volatile organic compounds, odor generating factors and the like.
상기 에어로겔, 폴리에틸렌 바인더 및 분말 활성탄의 함량은 에어로겔 5~30중량%, 폴리에틸렌 바인더 10~40중량% 및 분말 활성탄 30~60중량%인 것이 바람직하다. 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.
에어로겔의 함량이 5중량% 미만인 경우 흡착 특성이 저하되고, 30중량%를 초과하는 경우 필터의 내구성이 오히려 저하된다.If 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.
폴리에틸렌 바인더의 함량이 10중량% 미만인 경우 바인더가 에어로겔 및 분말 활성탄과 효과적으로 결합하지 못하여 필터의 내구성을 확보하기 어렵고, 40중량%를 초과하는 경우 흡착성, 통수량 및 정수성능이 오히려 저하된다.If 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.
분말 활성탄의 함량이 30중량% 미만인 경우 흡착 특성을 확보하기 어렵고, 60중량%를 초과하는 경우 내구성 및 정수성능이 오히려 저하된다.If 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.
본 발명의 복합 필터는 선카본 필터, 멤브레인 필터 및 후카본 필터를 하나의 필터로 일체화함으로써 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행할 수 있다. 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.
본 발명은 정수기 내에 하나의 복합 필터를 구비함으로써 취급이 간단하고 정수기의 부피를 획기적으로 줄일 수 있다. According to the present invention, a single filter is provided in the water purifier to simplify the handling and to drastically reduce the volume of the water purifier.
상기 에어로겔 및 분말 활성탄은 실란 커플링제로 표면 처리되어 사용될 수 있다. The airgel and powdered activated carbon may be used after being surface treated with a silane coupling agent.
실란 커플링제는 유기 화합물과 결합할 수 있는 유기 관능기 및 무기물과 반응할 수 있는 가수분해기를 가지며, 에어로겔, 분말 활성탄 및 폴리에틸렌 바인더의 계면 접착력을 향상시켜 제조된 복합필터의 흡착력, 내구성, 통수량, 정수성능 등을 획기적으로 개선할 수 있다. 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.
실란 커플링제로는 알킬기 함유 실란 커플링제, 아미노기 함유 실란 커플링제, 에폭시기 함유 실란 커플링제, 아크릴레이트기 함유 실란 커플링제, 이소시아네이트기 함유 실란 커플링제, 메르캅토기 함유 실란 커플링제, 불소기 함유 실란 커플링제, 비닐기 함유 실란 커플링제 등이 제한 없이 사용될 수 있다. As a 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.
상기 에어로겔 및 분말 활성탄은 에폭시기 함유 실란 커플링제 및 아크릴레이트기 함유 실란 커플링제의 혼합물로 표면 처리되는 것이 필터의 내구성과 흡착성의 측면에서 바람직하다. 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.
혼합 실란 커플링제는 에폭시기 함유 실란 커플링제 60~90중량% 및 아크릴레이트기 함유 실란 커플링제 10~40중량%로 구성되는 바람직하다.It is preferable that 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.
표면 처리되는 실란 커플링제의 함량은 에어로겔 또는 분말 활성탄 100중량부에 대하여 1~10중량부인 것이 바람직하며, 함량이 1중량부 미만인 경우 접착력 향상을 기대하기 어렵고, 10중량부를 초과하는 경우 과다한 실란 커플링제의 사용으로 오히려 계면 접착 특성 및 내구성이 저하된다. 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.
상기 조성물은 실란 커플링제 1~10중량%를 추가로 포함할 수 있으며, 함량이 1중량% 미만인 경우 첨가의 효과가 미미하고, 10중량%를 초과하는 경우 내구성이 저하된다. The 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.
상기 실란 커플링제는 에폭시기 함유 실란 커플링제 및 아크릴레이트기 함유 실란 커플링제의 혼합물인 것이 바람직하다. It is preferable that the said silane coupling agent is a mixture of an epoxy group containing silane coupling agent and an acrylate group containing silane coupling agent.
또한 혼합 실란 커플링제는 에폭시기 함유 실란 커플링제 60~90중량% 및 아크릴레이트기 함유 실란 커플링제 10~40중량%로 구성되는 바람직하다.Moreover, it is preferable that 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.
상기 조성물은 에폭시기 함유 실란 커플링제와 아크릴레이트기 함유 실란 커플링제를 미리 반응시켜 제조한 실란 커플링제 올리고머 1~5중량%를 추가로 포함할 수 있다. 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.
상기 실란 커플링제 올리고머를 사용함으로써 복합 필터의 가공성, 내구성, 흡착성 등이 향상될 수 있다. By using the silane coupling agent oligomer, the processability, durability, adsorptivity, etc. of the composite filter can be improved.
실란 커플링제 올리고머의 중량평균분자량은 1,000~5,000g/mol이 바람직하며, 실란 커플링제 올리고머의 함량이 1중량% 미만인 경우 첨가의 효과가 미미하고, 5중량%를 초과하는 경우 내구성 및 흡착성이 저하된다. 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.
상기 조성물은 규산나트륨 및 규산칼륨을 추가로 포함할 수 있다. The composition may further comprise sodium silicate and potassium silicate.
상기 규산나트륨은 접착성 및 가공성의 부여를 위해 사용되며, 고체상 또는 용액으로 사용될 수 있다. The sodium silicate is used for imparting adhesion and processability, and may be used in solid phase or in solution.
규산나트륨의 함량은 1~5중량%인 것이 바람직하며, 함량이 1중량% 미만인 경우 첨가의 효과가 미미하고, 5중량%를 초과하는 경우 내구성이 오히려 저하된다.It is preferable that 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.
규산칼륨은 접착성이 우수하여 조성물의 혼화성 및 융착성을 향상시킬 수 있다. Potassium silicate is excellent in adhesiveness and can improve the miscibility and adhesion of the composition.
규산칼륨의 함량은 1~5중량%인 것이 바람직하며, 함량이 1중량% 미만인 경우 첨가의 효과가 미미하고, 5중량%를 초과하는 경우 조성물의 혼화성이 저하되어 균일한 조성물이 형성될 수 없게 된다. It is preferable that 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.
상기 조성물은 아크릴산, 메타크릴산, 말레산, 무수말레산 등으로 그라프트된 그라프트 폴리에틸렌을 추가로 포함할 수 있다. The composition may further comprise graft polyethylene grafted with acrylic acid, methacrylic acid, maleic acid, maleic anhydride, and the like.
상기 그라프트 폴리에틸렌은 에어로겔, 분말 활성탄 및 폴리에틸렌 바인더의 계면 접착력을 향상시켜 제조된 복합필터의 흡착력, 내구성, 통수량, 정수성능 등을 획기적으로 개선할 수 있다. 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.
상기 그라프트 폴리에틸렌의 함량은 1~5중량%인 것이 바람직하며, 함량이 1중량% 미만인 경우 첨가의 효과가 미미하고, 5중량%를 초과하는 경우 내구성이 오히려 저하된다.It is preferable that 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.
본 발명의 조성물은 섬유 활성탄, 세라믹 분말(이산화티탄, 실리카, 알루미나, 제올라이트 등), 항균제(실리카, 알루미나, 제올라이트, 벤토나이트, 은 분말, 참숯, 황토, 토르말린, 맥반석, 금속염 등), 중금속 제거제, 계면활성제, 가소제, 활제, 소포제, 증점제, 촉매, 희석제, 분산제, 레벨링제, 가교제, pH 조절제, 안료, 습윤제, 산화방지제, 대전방지제, 이형제 등을 포함할 수 있다. 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.
또한 본 발명은 에어로겔 5~30중량%, 폴리에틸렌 바인더 10~40중량% 및 분말 활성탄 30~60중량%를 포함하는 조성물을 혼합하는 혼합공정; In another aspect, 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;
상기 혼합된 조성물을 내부 코어가 삽입된 금형에 충전한 후 프레스의 가이드링을 가압하여 상기 가이드링이 혼합된 조성물을 가압하면서 복합 필터를 제조하는 복합 필터 제조공정; A composite filter manufacturing process of manufacturing a composite filter while pressing the guide ring of the press by pressing the guide ring of the press after filling the mixed composition with a mold into which an inner core is inserted;
상기 금형에서 복합 필터를 인출하지 않고 복합 필터가 성형된 금형 전체를 열처리하는 열처리공정; 상기 열처리된 금형 전체를 냉각시키는 냉각공정; 및 상기 냉각된 금형과 내부 코어를 분리하여 복합 필터를 금형으로부터 인출한 후 규격에 맞추어 절단하는 분리 및 절단공정을 포함하고, A heat treatment step of heat-treating the entire mold in which the composite filter is formed without drawing out the composite filter from the mold; A cooling step of cooling the entire heat-treated mold; And a separation and cutting process of separating the cooled mold and the inner core to draw a composite filter from the mold and then cutting it to a standard.
선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터의 제조방법에 관한 것이다.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.
상기 혼합공정은 에어로겔 5~30중량%, 폴리에틸렌 바인더 10~40중량% 및 분말 활성탄 30~60중량%를 포함하는 조성물을 균일하게 혼합하는 공정으로서, 에어로겔과 분말 활성탄이 폴리에틸렌 바인더 내에 균일하게 분포하여야 정수 기능을 효율적으로 발휘할 수 있다. 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.
상기 혼합공정에서 조성물을 교반하는 경우, 교반 속도는 저속에서 고속으로 일정 시간 동안 점진적으로 증가시키는 것이 필터의 정수성능 향상을 위해 바람직하다. In the case of 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.
예를 들면, 상기 조성물을 2,000~3,500rpm에서 교반하다가 속도를 점진적으로 증가시켜 4,000~6,000rpm에서 교반하는 것이 바람직하며, 저속에서 고속으로 교반 속도를 조절하는 시간은 10~30분인 것이 바람직하다. For example, 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.
복합 필터 제조공정은 혼합된 조성물을 금형에 충전하여 복합 필터를 제조하는 공정으로서, 알루미늄 금형에 복합 필터의 통수공을 형성하기 위한 내부 코어를 삽입한 후 혼합된 조성물을 금형 내부에 투입한 다음 상부에서 프레스를 이용하여 가이드링을 하부로 2~50기압에서 가압함으로써 복합 필터를 제조한다. 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.
상기 열처리공정은 복합 필터가 성형된 금형 전체를 열처리하는 공정으로서, 금형에서 복합 필터를 인출하지 않고 수행되며 열처리는 90~250℃에서 1~10시간 수행된다. 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.
상기 냉각공정은 열처리된 금형 전체를 냉각시키는 공정으로서, 다양한 냉각수단을 통하여 금형을 냉각시킨다. The cooling process is a process of cooling the entire heat-treated mold, and cooling the mold through various cooling means.
상기 냉각공정은 기체나 액체를 사용하여 급냉함으로써 복합 필터의 강도와 기공율을 향상시키는 것이 바람직하다. In the cooling step, it is preferable to improve the strength and porosity of the composite filter by quenching using gas or liquid.
분리 및 절단공정은 제조된 복합 필터를 금형으로부터 인출한 후 규격에 맞추어 절단하는 공정으로서, 별도의 지그를 이용하여 외부의 금형과 내부 코어를 분리하여 복합필터를 금형으로부터 인출한 후, 절단기를 이용하여 정해진 규격에 맞도록 복합필터를 절단한다. 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.
상기 복합 필터는 선카본 필터, 멤브레인 필터 및 후카본 필터를 하나의 필터로 일체화함으로써 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행할 수 있다. 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.
복합 필터에 포함된 에어로겔은 고다공성 나노구조체로서 입자가 작은 오염물질, 잔류 염소, 휘발성 유기 화합물, 중금속, 미생물, 냄새 발생 인자 등을 효과적으로 흡착함으로써 필터의 흡착성을 향상시킬 수 있다(도 1 및 2). 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). ).
또한 정수기 내에 하나의 복합 필터를 구비함으로써 취급이 간단하고 정수기의 부피를 획기적으로 줄일 수 있다. In addition, by providing one composite filter in the water purifier, the handling is simple and the volume of the water purifier can be drastically reduced.
이하 실시예 및 비교예를 통해 본 발명을 상세히 설명한다. 하기 실시예는 본 발명의 실시를 위하여 예시된 것일 뿐, 본 발명의 내용이 하기 실시예에 의하여 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail through Examples and Comparative Examples. The following examples are merely illustrative for the practice of the present invention, but the content of the present invention is not limited by the following examples.
(실시예 1) (Example 1)
실리카 에어로겔 40중량% 및 폴리에틸렌 바인더 60중량%를 포함하는 조성물을 혼합하였다. A composition comprising 40 wt% silica airgel and 60 wt% polyethylene binder was mixed.
상기 혼합된 조성물을 내부 코어가 삽입된 알루미늄 금형에 충전한 후 프레스의 가이드링을 가압하여 상기 가이드링이 혼합된 조성물을 가압하면서 복합 필터를 제조하였다.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.
상기 금형에서 복합 필터를 인출하지 않고 복합 필터가 성형된 금형 전체를 150℃에서 1시간 열처리하였다. 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.
상기 열처리된 금형 전체를 상온으로 냉각시겼다.The entire heat treated mold was cooled to room temperature.
상기 냉각된 금형과 내부 코어를 분리하여 복합 필터를 금형으로부터 인출한 후 규격에 맞추어 절단하였다. 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.
(실시예 2)(Example 2)
실리카 에어로겔 15중량%, 폴리에틸렌 바인더 35중량% 및 분말 활성탄 50중량%를 사용한 것을 제외하고는 실시예 1과 동일한 방법으로 복합 필터를 제조하였다. 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.
(실시예 3)(Example 3)
3-글리시독시프로필트리메톡시실란 70중량% 및 3-메타크릴록시프로필트리메톡시실란 30중량%로 구성되는 혼합 실란 커플링제로 표면 처리된 실리카 에어로겔과 분말 활성탄을 사용한 것을 제외하고는 실시예 2와 동일한 방법으로 복합 필터를 제조하였다. Except for the use of powdered activated carbon and silica airgel surface-treated with a mixed silane coupling agent consisting of 70% by weight of 3-glycidoxypropyltrimethoxysilane and 30% by weight of 3-methacryloxypropyltrimethoxysilane. A composite filter was prepared in the same manner as in Example 2.
(실시예 4)(Example 4)
실리카 에어로겔 15중량%, 폴리에틸렌 바인더 35중량%, 분말 활성탄 45중량% 및 3-글리시독시프로필트리메톡시실란 70중량% 및 3-메타크릴록시프로필트리메톡시실란 30중량%로 구성되는 혼합 실란 커플링제 5중량%를 사용한 것을 제외하고는 실시예 2와 동일한 방법으로 복합 필터를 제조하였다. Mixed silane consisting of 15% silica airgel, 35% polyethylene binder, 45% powdered activated carbon and 70% 3-glycidoxypropyltrimethoxysilane and 30% by weight of 3-methacryloxypropyltrimethoxysilane A composite filter was manufactured in the same manner as in Example 2, except that 5 wt% of a coupling agent was used.
(실시예 5)(Example 5)
3-글리시독시프로필트리메톡시실란 70중량부와 3-메타크릴록시프로필트리메톡시실란 30중량부를 60℃에서 24시간 반응시켜 분자량 4,000g/mol인 실란 커플링제 올리고머를 제조하였다. 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.
실리카 에어로겔 15중량%, 폴리에틸렌 바인더 35중량%, 분말 활성탄 47중량% 및 상기 실란 커플링제 올리고머 3중량%를 사용한 것을 제외하고는 실시예 2와 동일한 방법으로 복합 필터를 제조하였다. 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.
(실시예 6)(Example 6)
실리카 에어로겔 15중량%, 폴리에틸렌 바인더 35중량%, 분말 활성탄 47중량% 및 말레산으로 그라프트된 그라프트 폴리에틸렌 3중량%를 사용한 것을 제외하고는 실시예 2와 동일한 방법으로 복합 필터를 제조하였다. 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.
(비교예 1)(Comparative Example 1)
폴리에틸렌 바인더 40중량% 및 분말 활성탄 60중량%를 사용한 것을 제외하고는 실시예 2와 동일한 방법으로 복합 필터를 제조하였다. 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.
(비교예 2)(Comparative Example 2)
실리카 에어로겔 2중량%, 폴리에틸렌 바인더 35중량% 및 분말 활성탄 63중량%를 사용한 것을 제외하고는 실시예 2와 동일한 방법으로 복합 필터를 제조하였다. 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.
(비교예 3)(Comparative Example 3)
실리카 에어로겔 35중량%, 폴리에틸렌 바인더 35중량% 및 분말 활성탄 30중량%를 사용한 것을 제외하고는 실시예 2와 동일한 방법으로 복합 필터를 제조하였다. 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.
상기 실시예 및 비교예로부터 제조된 복합 필터의 특성을 측정하여 그 결과를 아래의 표 1에 나타내었다. The properties of the composite filter prepared from the above Examples and Comparative Examples were measured, and the results are shown in Table 1 below.
복합 필터의 염소 제거율은 원수의 염소를 2ppm으로 공급한 뒤 여과되는 물의 잔류염소 농도를 60분 후에 잔류염소 측정기로 측정한 뒤 하기의 식으로 제거율을 계산하였다.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.
제거율 = (원수의 염소농도 - 여과수의 원수농도)/원수의 염소농도Removal rate = (chlorine concentration of raw water-raw water concentration of filtered water) / chlorine concentration of raw water
복합 필터의 내구성은 복합 필터를 20℃의 물에 7일간 침지한 후, 복합 필터의 상태를 관찰하여 판단하였다. 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.
구분division 실시예Example 비교예Comparative example
1One 22 33 44 55 66 1One 22 33
염소 제거율(%)Chlorine Removal Rate (%) 96.196.1 96.796.7 98.698.6 98.898.8 97.997.9 98.198.1 92.792.7 94.394.3 94.694.6
내구성durability 양호Good 양호Good 탁월eminence 탁월eminence 탁월eminence 탁월eminence 불량Bad 불량Bad 불량Bad
상기 표 1의 결과로부터, 실시예 1 내지 6의 복합 필터는 흡착성, 내구성, 정수성능 등이 우수하여 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행할 수 있다. From the results of Table 1, 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.
반면 비교예 1 내지 3의 복합 필터는 흡착성, 내구성 및 정수성능이 실시예에 비하여 열등함을 알 수 있다. On the other hand, it can be seen that the composite filters of Comparative Examples 1 to 3 are inferior in adsorption, durability, and water purification performance to the examples.
본 발명은 선카본 필터, 멤브레인 필터 및 후카본 필터를 하나의 필터로 일체화함으로써 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터를 제공할 수 있다. 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.
또한 본 발명은 정수기 내에 하나의 필터를 포함함으로써 취급이 간단하고 정수기의 부피를 획기적으로 줄일 수 있다. In addition, 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.
아울러 본 발명은 내구성, 흡착성, 통수량, 정수성능 등이 우수하여 필터의 수명을 개선할 수 있는 복합 필터를 제공할 수 있다.In addition, 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.

Claims (7)

  1. 에어로겔 30~70중량% 및 폴리에틸렌 바인더 30~70중량%를 포함하는 조성물로부터 제조되고, 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터.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 combined function of a sun carbon filter, a membrane filter, and a fucarbon filter.
  2. 에어로겔 5~30중량%, 폴리에틸렌 바인더 10~40중량% 및 분말 활성탄 30~60중량%를 포함하는 조성물로부터 제조되고, 선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터.A composite filter prepared from a composition comprising 5 to 30% by weight of an airgel, 10 to 40% by weight of a 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.
  3. 제2항에 있어서, The method of claim 2,
    상기 에어로겔은 실리카 에어로겔이고, The airgel is a silica airgel,
    상기 실리카 에어로겔의 입자 크기는 10~500㎛이며, 기공 크기는 20~50nm이며, 기공율은 50~99%인 것을 특징으로 하는 복합 필터. The particle size of the silica airgel is 10 ~ 500㎛, pore size is 20 ~ 50nm, the porosity is a composite filter, characterized in that 50 to 99%.
  4. 제2항에 있어서, The method of claim 2,
    상기 에어로겔 및 분말 활성탄은 에폭시기 함유 실란 커플링제 및 아크릴레이트기 함유 실란 커플링제의 혼합물로 표면 처리되어 사용되는 것을 특징으로 하는 복합 필터. The airgel and the powdered activated carbon are surface-treated with a mixture of an epoxy group-containing silane coupling agent and an acrylate group-containing silane coupling agent.
  5. 제2항에 있어서, The method of claim 2,
    상기 조성물은 실란 커플링제 1~10중량%를 추가로 포함하며, 상기 실란 커플링제는 에폭시기 함유 실란 커플링제 및 아크릴레이트기 함유 실란 커플링제의 혼합물인 것을 특징으로 하는 복합 필터. The composition further comprises 1 to 10% by weight of a silane coupling agent, wherein the silane coupling agent is a composite filter, characterized in that a mixture of an epoxy group-containing silane coupling agent and an acrylate group-containing silane coupling agent.
  6. 에어로겔 5~30중량%, 폴리에틸렌 바인더 10~40중량% 및 분말 활성탄 30~60중량%를 포함하는 조성물을 혼합하는 혼합공정;A mixing step of mixing a composition comprising 5 to 30 wt% of an airgel, 10 to 40 wt% of a polyethylene binder, and 30 to 60 wt% of powdered activated carbon;
    상기 혼합된 조성물을 내부 코어가 삽입된 금형에 충전한 후 프레스의 가이드링을 가압하여 상기 가이드링이 혼합된 조성물을 가압하면서 복합 필터를 제조하는 복합 필터 제조공정;A composite filter manufacturing process of manufacturing a composite filter while pressing the guide ring of the press by pressing the guide ring of the press after filling the mixed composition with a mold into which an inner core is inserted;
    상기 금형에서 복합 필터를 인출하지 않고 복합 필터가 성형된 금형 전체를 열처리하는 열처리공정; A heat treatment step of heat-treating the entire mold in which the composite filter is formed without drawing out the composite filter from the mold;
    상기 열처리된 금형 전체를 냉각시키는 냉각공정; 및 A cooling step of cooling the entire heat-treated mold; And
    상기 냉각된 금형과 내부 코어를 분리하여 복합 필터를 금형으로부터 인출한 후 규격에 맞추어 절단하는 분리 및 절단공정을 포함하고, Separation and cutting process of separating the cooled mold and the inner core to take out the composite filter from the mold and then cut in accordance with the standard,
    선카본 필터, 멤브레인 필터 및 후카본 필터의 기능을 복합적으로 수행하는 복합 필터의 제조방법.A method for producing a composite filter that performs a combination of the functions of a sun carbon filter, a membrane filter and a fu carbon filter.
  7. 제6항에 있어서,The method of claim 6,
    상기 냉각공정은 기체나 액체를 사용하여 급냉함으로써 복합 필터의 강도와 기공율을 향상시키는 것을 특징으로 하는 복합 필터의 제조방법.The cooling step is a method for producing a composite filter, characterized in that to improve the strength and porosity of the composite filter by quenching using gas or liquid.
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