WO2018186567A1 - Procédé de production d'un bloc perméable à l'eau au moyen d'une résine synthétique recyclée et bloc perméable à l'eau produit par ledit procédé - Google Patents

Procédé de production d'un bloc perméable à l'eau au moyen d'une résine synthétique recyclée et bloc perméable à l'eau produit par ledit procédé Download PDF

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Publication number
WO2018186567A1
WO2018186567A1 PCT/KR2018/000815 KR2018000815W WO2018186567A1 WO 2018186567 A1 WO2018186567 A1 WO 2018186567A1 KR 2018000815 W KR2018000815 W KR 2018000815W WO 2018186567 A1 WO2018186567 A1 WO 2018186567A1
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WO
WIPO (PCT)
Prior art keywords
synthetic resin
fine aggregate
permeable block
cooling
water
Prior art date
Application number
PCT/KR2018/000815
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English (en)
Korean (ko)
Inventor
김태현
Original Assignee
김태현
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Filing date
Publication date
Application filed by 김태현 filed Critical 김태현
Publication of WO2018186567A1 publication Critical patent/WO2018186567A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/002—Apparatus for washing concrete for decorative purposes or similar surface treatments for exposing the texture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245—Curing concrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0097—Press moulds; Press-mould and press-ram assemblies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/46—Arrangements for applying super- or sub-atmospheric pressure during mixing; Arrangements for cooling or heating during mixing, e.g. by introducing vapour
    • B28C5/466—Heating, e.g. using steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
    • B28C7/0023—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust by heating or cooling
    • B28C7/003—Heating, e.g. using steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/0404—Proportioning
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/18—Waste materials; Refuse organic
    • C04B18/20—Waste materials; Refuse organic from macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0051—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224—Surface drainage of streets
    • E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention relates to a method for producing a water permeable block using recycled synthetic resin, such as a waste container used as a food and beverage container, and a water permeable block produced thereby.
  • sidewalks for people to walk safely.
  • Such sidewalks are manufactured in various forms so that pedestrians can walk more comfortably and safely.
  • cement, asphalt, urethane, etc. are poured directly onto the ground to form sidewalks, or concrete or synthetic resins are used.
  • Formed sidewalk blocks are manufactured by forming the sidewalk blocks flat on the ground to form sidewalks.
  • the bigger problem is that most of the sidewalk blocks are products using cement concrete products, clay products, and waste tires, and these products use pigments produced by chemical methods in the upper layer, and they do not undergo sufficient curing process. As it is released, it causes pollution of river and river water quality.
  • products using eco-friendly resins do not have a product that is directly produced using a molding machine, and the curing time is long, many molds must be used, and after curing for at least 2 to 24 hours in the mold, demolding is performed. Therefore, it is difficult to apply to the actual site because there are many production processes and excessive production costs.
  • the present invention has been made to solve the above-mentioned problems, one object of the present invention is to mix the waste synthetic resin used as an edible container to prepare a permeable block, but to enhance the strength by increasing the resin compounding ratio compared to the existing In addition, by increasing the porosity by lowering the pressing force in the press molding, and by increasing the cooling time of the permeation block, it is possible to prevent burning or melting of the resin to prevent pore blockage and also to prevent harmful gas generation. It is to provide a method for producing a permeable block using.
  • Another object of the present invention to provide a permeable block produced by the above-described manufacturing method.
  • the molten resin and the fine aggregate are added to the mixer at a ratio of 3: 7, and the temperature inside the mixer is heated to be 220 to 290 ° C., and the rotation speed of the mixer is rotated at a speed of 10 to 30 rpm to adjust the fine aggregate and the molten recycled synthetic resin.
  • Mixing step of mixing A molding step of inserting the mixed molten resin and fine aggregate into a mold and molding a permeable block by pressure molding at a pressure of 30 to 40 MPa; And a cooling step of uniformly cooling the surface and the inside of the molded water permeable block for 15 to 20 sec.
  • the mixer used in the mixing step includes a cylindrical mixer barrel and a plurality of stirring blades arranged in a step shape along the longitudinal direction on the inner circumferential surface of the mixer cylinder, each of the stirring blades is a portion of the stirring stirring adjacent It may be arranged to overlap with the wings.
  • water cooling is performed as the cooling tray containing each of the permeation blocks passes through the cooling water tank while being transported by the conveyor, and air is blown by the nozzle through the open upper portion of the cooling tray.
  • the permeation block can be air cooled.
  • a permeation block manufactured by the method for producing a permeation block using the recycled synthetic resin, wherein the permeation block has a hexahedral shape, the regenerated synthetic resin and the fine aggregate constituting the permeation block is 3: 7 It is made by mixing at a ratio, and when formed under pressure at a pressure of 30 to 40 MPa is provided a permeability block comprising a porosity of 20 to 30%.
  • the porosity can be increased by lowering the pressing force in the press molding as compared with the existing, thereby increasing the permeability efficiency.
  • FIG. 1 is a flowchart illustrating a method of manufacturing a pitcher block using recycled synthetic resin according to the present invention.
  • FIG. 2 is a block diagram of a mixer and stirring blade according to the present invention
  • FIG 3 is a view for explaining the cooling process of the water permeable block according to the present invention.
  • Figure 4 is a shape of the pitcher block produced according to the production method of the present invention
  • FIG. 5 is a schematic cross-sectional view showing an embodiment of an air nozzle according to the present invention.
  • FIG. 1 is a flowchart illustrating a method of manufacturing a pitcher block using recycled synthetic resin according to the present invention.
  • the manufacturing method of the water permeable block using the recycled synthetic resin according to the present invention is the aggregate aggregate heating step (S10), fine aggregate thermal insulation step (S20), melting step (S30), mixing step (S40), molding step (S50) And cooling step (S60).
  • the fine aggregate heating step (S10) is a step of inputting the fine aggregate conveyed by the conveyor to the primary heating furnace and heating it to a predetermined temperature.
  • the fine aggregate heating step is to allow the recycled synthetic resin to be melted by the heating temperature of the fine aggregate when the recycled synthetic resin and the fine aggregate to be described in the steps to be described later are mixed.
  • the fine aggregate thermal insulation step (S20) is a step of keeping the heated temperature of the fine aggregate is kept constant by inputting the fine aggregate heated in the above step into the secondary heating furnace.
  • the melting step (S30) is a step of melting the regenerated synthetic resin by the heated temperature of the residual aggregate by inputting the residual aggregate discharged from the secondary heating furnace and the regenerated synthetic resin crushed to a certain size in the melting furnace.
  • the recycled synthetic resin introduced into the melting furnace is subjected to the sorting step (S100), the crushing step (S200) and the washing and drying step (S300).
  • the sorting step (S100) is a step of sorting the PET bottle (PET) used as a container for food and beverage by colorless, color and material
  • the grinding step (S200) is to crush the regenerated synthetic resin selected in the above, but the diameter is 0.5 ⁇ 2.0cm
  • the washing and drying step (S300) is a step of washing, dehydrating and drying the pulverized regenerated synthetic resin.
  • the screening step is to use a colorless of the recycled synthetic resin can be produced a transparent block of the transparent color, if you use a colored block can be produced according to the color of the corresponding color to obtain the desired color without using a dye This makes it possible to manufacture environmentally friendly pitching blocks and contributes to cost reduction.
  • the recycled synthetic resin and the aggregate are added to the mixer at a ratio of 3: 7, and the temperature inside the mixer is heated to be 220 to 290 ° C, and the rotation speed of the mixer is at a speed of 10 to 30 rpm. It is a step of mixing the molten recycled synthetic resin which is rotated to serve as a fine aggregate and a flocculant.
  • the internal temperature of the mixer is lower than 220 °C can not solidify because it is not melted, whereas if higher than 290 °C can be burned due to high heat is preferably limited to the above temperature range.
  • the mixing ratio of the recycled synthetic resin and fine aggregates is an important factor for improving the strength, and as the mixing ratio of the recycled synthetic resins increases with respect to the fine aggregates, the cohesive strength of the fine aggregates increases, but the mixing ratio of the recycled synthetic resins is more than necessary. If it is increased, the ductility is increased to increase the possibility of deformation is preferably determined in the above compounding range.
  • the rotational speed in the above range is good mixing efficiency.
  • the stirring efficiency is significantly lowered.
  • the stirring efficiency is lowered.
  • the mixer may have a form as in FIG. 2 to increase the stirring efficiency.
  • the mixer 100 has a cylindrical mixer barrel 110 having an inlet 111 and an outlet 112 and a plurality of staircases arranged in the longitudinal direction on the inner circumferential surface of the mixer barrel 110. It may be composed of a plate or streamlined stirring blades 120.
  • each of the stirring blades 120 is preferably a portion, for example, the end of the longitudinal direction is disposed to overlap with the other stirring blades adjacent.
  • the stirring blade 120 of the present application is disposed in a step shape, so that the aggregate and the molten resin are staircases. Since it flows smoothly along the flow efficiency can be doubled, and thus the stirring efficiency can be doubled.
  • the molding step (S50) is a step of forming a permeation block by putting a predetermined amount of the mixed molten resin and the residual aggregate into a mold (mold), and by pressure molding at a pressure of 30 ⁇ 40MPa by a plunger.
  • the important factor is the pressurization pressure, the larger the pressing force, the porosity is lowered because the pores between the molten resin and the fine aggregate becomes dense, while the smaller the pressing force increases the porosity between the molten resin and the fine aggregate, thereby increasing the porosity.
  • the permeation block may be better because the larger the porosity, the larger the porosity, so the larger the porosity, the greater the porosity. Can be guaranteed.
  • Porosity when pressurized to the above pressure is 20 to 30%.
  • the porosity is Vs
  • the cooling step (S60) is a step of evenly cooling the surface and the interior of the molding block is completed for 15 to 20 seconds.
  • the external cooling of the permeation block 1 is performed by water cooling, and the internal cooling of the permeation block 1 is simultaneously performed by air cooling, the inside and outside of the permeation block 1 can be cooled overall.
  • the improvement in cooling efficiency contributes to productivity improvement since the curing time can be significantly reduced compared to the existing curing time of 28 days.
  • the water permeability block 1 of the present invention can increase the cooling efficiency and shorten the cooling time since the porosity is improved compared to the conventional one.
  • Figure 4 is a photograph of the pitcher block produced by the invention described above.
  • the permeable block 1 has a hexahedral shape, and is composed of recycled synthetic resin and fine aggregate at a ratio of 3: 7, and is press-molded at a pressure of 30 to 40 MPa to form a porosity of 20 to Up to 30%.
  • the permeable block 1 according to these conditions can obtain a product that satisfies both strength and permeability efficiency.
  • the air nozzle 510 may be made of a swirl nozzle as shown in FIG.
  • the vortex nozzle is a means for rotating the injected air while increasing the blowing force of the air.
  • a thread forming part 64 having a thread is formed to be fastened to the air supply pipe 500, and the thread forming part 64 is formed.
  • a hollow and conical body portion 65 is formed integrally extending.
  • the body portion 65 has a plurality of air holes 66 which are holes for final injection of air along the spiral direction. It is formed through.
  • the outer surface of the body portion 65 is formed with a spiral air groove inner groove 68 coinciding with the air holes 66 arranged in a spiral direction, the air groove inner groove 68 is an air hole ( 66 to guide the jet direction of the air jetted from the spiral direction to form a vortex.
  • the air injected through the air hole 66 of the vortex nozzle and the spiral air while the inner groove 68 rotates and simultaneously sprays air while forming a vortex, thereby evenly spraying the permeable block 1 while the permeable block (1) The whole is cooled evenly.
  • the anti-fouling coating layer coated with the anti-fouling coating composition may be formed around the stirring vane 120 to effectively achieve the prevention and removal of contaminants.
  • the antifouling coating composition includes hydrogen peroxide and sodium metasilicate in a 1: 0.01 to 1: 2 molar ratio, and the total content of hydrogen peroxide and sodium metasilicate is 1 to 10% by weight based on the total aqueous solution.
  • sodium metasilicate or calcium carbonate may be used as a material for improving the coatability of the antifouling coating layer, but preferably sodium metasilicate may be used.
  • the hydrogen peroxide and sodium metasilicate are preferably 1: 0.01 to 1: 2 as the molar ratio. If the molar ratio is out of the above range, the coating property of the substrate may be reduced or the moisture absorption of the surface may be increased after application, thereby removing the coating film. have.
  • the hydrogen peroxide and sodium metasilicate are preferably 1 to 10% by weight of the total composition aqueous solution, if less than 1% by weight has a problem that the applicability of the substrate is lowered, if it exceeds 10% by weight crystal due to the increase in the coating film thickness Precipitation is likely to occur.
  • the final coating film thickness on the stirring blade 120 is preferably 500 to 2000 kPa, more preferably 1000 to 2000 kPa. If the thickness of the coating film is less than 500 kPa, there is a problem of deterioration in the case of high temperature heat treatment, and if the thickness of the coating film exceeds 2000 kPa, crystal precipitation of the coated surface is liable to occur.
  • the antifouling coating composition may be prepared by adding 0.1 mol of hydrogen peroxide and 0.05 mol of sodium metasilicate to 1000 ml of distilled water, followed by stirring.
  • the cooling bath 400 may be formed of a surface protective coating layer of a surface coating material of a metal material in order to prevent corrosion of the surface from dust, contaminants, and the like.
  • the surface protective coating layer is composed of 2.5% by weight zirconium powder, 60% by weight alumina powder, 30% by weight NH 4 Cl, 2.5% by weight zinc, 2.5% by weight magnesium and 2.5% by weight titanium.
  • the zirconium powder is excellent in corrosion resistance and heat resistance. This zirconium powder is mixed at 2.5% by weight. If the mixing ratio of the zirconium powder is less than 2.5% by weight, the corrosion resistance and the heat resistance are not greatly improved. On the other hand, if the mixing ratio of the zirconium powder exceeds 2.5% by weight, the above-mentioned effect is not improved further while the material cost is greatly increased. Therefore, the titanium is preferably mixed 2.5% by weight.
  • the alumina powder is added for the purpose of sintering, tangling, fusion prevention, etc. when heated to a high temperature.
  • the alumina powder is added in less than 60% by weight, the effect of sintering, tangling and fusion prevention is inferior, and when the alumina powder exceeds 60% by weight, the above-mentioned effect is not further improved, while the material cost is greatly increased. Therefore, it is preferable to add 60 weight% of alumina powders.
  • the NH 4 Cl reacts with zinc and magnesium in a vapor state to serve to activate diffusion and penetration. This NH 4 Cl is added 30% by weight. If NH 4 Cl is added at less than 30% by weight, it does not react properly with the vaporized zinc and magnesium and thus does not activate diffusion and penetration. On the other hand, when NH 4 Cl exceeds 30% by weight, the above-mentioned effect is not improved further, while the material cost is greatly increased. Therefore, it is preferable to add 30% by weight of NH 4 Cl.
  • the zinc is formulated to prevent corrosion of metals in water and to be used for electrical applications. This zinc is mixed 2.5% by weight. If the mixing ratio of zinc exceeds 2.5% by weight, it will not properly prevent corrosion of the metal on water. On the other hand, when the mixing ratio of zinc exceeds 2.5% by weight, the above-mentioned effect is not improved further, while the material cost is greatly increased. Therefore, the zinc is preferably mixed 2.5% by weight.
  • magnesium Since the pure metal of magnesium has a low structural strength, the magnesium is combined with zinc to increase the hardness, tensile strength and corrosion resistance of the metal. This magnesium is mixed 2.5% by weight. If the mixing ratio of magnesium is less than 2.5% by weight, the hardness, tensile strength and corrosion resistance to salt water of the metal when combined with zinc and the like are not significantly improved. On the other hand, when the mixing ratio of magnesium exceeds 2.5% by weight, the above-mentioned effect is not improved further, while the material cost is greatly increased. Therefore, magnesium is preferably mixed at 2.5% by weight.
  • the titanium is a light, hard and corrosion-resistant transition metal element has a silver-white metallic luster, and because of its excellent corrosion resistance and low specific gravity, the weight of the titanium is only 60% compared to steel, so that the weight of the coating material applied to the metal base material is reduced but the gloss is increased. It is formulated to have excellent waterproof and corrosion resistance.
  • This titanium is mixed 2.5% by weight.
  • the mixing ratio of titanium is less than 2.5% by weight, the weight of the coating material applied to the metal base material is not so much reduced, and the glossiness, waterproofness, and corrosion resistance are not greatly improved.
  • the mixing ratio of titanium exceeds 2.5% by weight, the above-mentioned effect is not further improved while the material cost is greatly increased. Therefore, the titanium is preferably mixed 2.5% by weight.
  • the surface coating method of the cooling water tank 400 according to the present invention is as follows.
  • the cooling water tank 400 to which the surface protective coating layer is to be formed and the coating material blended in the above configuration are put together in the closing furnace.
  • Argon gas is injected, and maintained at a temperature of 700 ° C to 800 ° C for 4 to 5 hours while argon gas is injected.
  • the zirconium powder, alumina powder, zinc, magnesium, and titanium in a vapor state are formed inside the closure, and the zirconium powder, alumina powder, zinc, magnesium, and titanium blend penetrate the surface of the base material to provide a surface protective coating layer. Is formed.
  • the internal temperature of the coating material / substrate composite is maintained at 800 ° C. to 900 ° C. for 30 to 40 hours, and the surface protection coating layer for preventing corrosion is formed on the surface of the cooling water tank 400.
  • the surface of the cooling water tank 400 and the outside air is isolated. At this time, in performing the process, the temperature change is rapid because the surface protective coating layer of the surface of the cooling water tank 400 may be peeled off.
  • the surface protective coating layer of the present invention has the following advantages.
  • the surface protective coating layer of the present invention has a very wide range of uses, it can be applied by various methods such as curtain coating, spray painting, dip coating, flooding, and the like.
  • the surface protective coating layer of the present invention can be applied with a very thin layer thickness in addition to the principle protection against corrosion and / or scale, thereby improving the electrical conductivity as well as material and cost savings. Even after hot forming, a thin electroconductive primer may be applied on top of the application layer if high electrical conductivity is desired.
  • the coating material may be retained on the surface of the substrate, for example, to increase scratch resistance, to improve corrosion protection, to meet aesthetic appearance, to prevent discoloration, and to be electrically conductive. And can be provided as a primer for conventional downstream processes (eg, dip and electrophoretic dip coating).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Architecture (AREA)
  • Road Paving Structures (AREA)

Abstract

L'invention concerne un procédé de production d'un bloc perméable à l'eau au moyen d'une résine synthétique recyclée et un bloc perméable à l'eau produit par ledit procédé. Ce procédé de production comprend les étapes suivantes : (S10) une étape de chauffage d'agrégat fin consistant à introduire un agrégat fin dans un four de chauffage primaire et à le chauffer à une température de consigne ; (S20) une étape de maintien de température d'agrégat fin consistant à introduire l'agrégat fin chauffé dans un four de chauffage secondaire et à le maintenir de telle sorte que la température à laquelle l'agrégat fin a été chauffé est maintenue constante ; (S30) une étape de fusion consistant à introduire, dans un four de fusion, l'agrégat fin sorti du four de chauffage secondaire et une résine synthétique recyclée pulvérisée à une taille définie, et à faire fondre la résine synthétique recyclée sous l'effet de la température de l'agrégat fin ; (S40) une étape de mélange consistant à introduire la résine fondue et l'agrégat fin dans un mélangeur et à mélanger l'agrégat fin et la résine synthétique recyclée fondue, le mélangeur étant chauffé de telle sorte que la température à l'intérieur de celui-ci est comprise entre 220 et 290 °C et étant mis en rotation à une vitesse de rotation comprise entre 10 et 30 tours par minute ; (S50) une étape de moulage consistant à introduire la résine fondue mélangée et l'agrégat fin dans un moule et à mouler le bloc perméable à l'eau par moulage par compression à une pression comprise entre 30 et 40 MPa ; et (S60) une étape de refroidissement consistant à refroidir uniformément la surface et l'intérieur du bloc moulé perméable à l'eau pendant 15 à 20 secondes.
PCT/KR2018/000815 2017-04-03 2018-01-17 Procédé de production d'un bloc perméable à l'eau au moyen d'une résine synthétique recyclée et bloc perméable à l'eau produit par ledit procédé WO2018186567A1 (fr)

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KR1020170042888A KR101772847B1 (ko) 2017-04-03 2017-04-03 재생 합성수지를 이용한 투수블록의 제조방법 및 이에 의해 제조된 투수블록
KR10-2017-0042888 2017-04-03

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