WO2016175367A1 - Aqueous colored pigment composition mixed with plate-like zinc powder - Google Patents

Aqueous colored pigment composition mixed with plate-like zinc powder Download PDF

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Publication number
WO2016175367A1
WO2016175367A1 PCT/KR2015/005033 KR2015005033W WO2016175367A1 WO 2016175367 A1 WO2016175367 A1 WO 2016175367A1 KR 2015005033 W KR2015005033 W KR 2015005033W WO 2016175367 A1 WO2016175367 A1 WO 2016175367A1
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weight
parts
zinc powder
plate
mixed
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PCT/KR2015/005033
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French (fr)
Korean (ko)
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전창일
한덕수
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주식회사 켐프
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/62—Metallic pigments or fillers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
    • C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/02—Emulsion paints including aerosols
    • C09D5/024—Emulsion paints including aerosols characterised by the additives
    • C09D5/028—Pigments; Filters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/48—Stabilisers against degradation by oxygen, light or heat
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0893—Zinc
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/004—Additives being defined by their length
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/016—Additives defined by their aspect ratio
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape

Definitions

  • the present invention relates to an aqueous color coating composition in which a plate-like zinc powder is mixed, and more particularly, an aqueous polyurethane mixture is contained and is applicable to construction equipment, steel, aluminum and other metal products. Due to the strong inorganic tendency, unlike the carbon bond alone, the urethane particles dispersed together with the siloxane bond are composed of a very large bonding angle and length, and the bonding energy is high, thus providing a coating with improved hardness and durability compared to conventional paints.
  • the present invention relates to an aqueous color coating composition in which plate-like zinc powder is mixed, which exhibits excellent color preservation effect by suppressing deterioration of a coating film without absorbing ultraviolet rays and exhibiting excellent rust preventing property and fast drying speed.
  • metal materials applied to structures such as petroleum refining plants, metal refining plants, and food chemical plant plants are subjected to anticorrosive treatment in order to prevent corrosion of metal materials due to corrosion conditions having various chemical properties and high temperature heat.
  • the zinc powder coating containing a large amount of zinc powder is a coating using a negative electrode protection anticorrosive effect, and the subsequent coating is mainly a heavy anticorrosive coating.
  • the epoxy resin, deepoxy resin, and urethane paints are subsequently applied to promote long-term method and are widely applied in highly corrosive environment.
  • the inorganic zinc paint has excellent heat resistance as well as anticorrosive effect.
  • Zinc powder paint is a negative electrode principle.
  • Zinc metal generally has higher ionization tendency than iron, so when two metals coexist in electrolyte, a local battery is formed and electrons are transferred from zinc (anode) to iron (cathode). As the zinc flows and the zinc (anode) is corroded, iron (cathode) is protected and is a principle that shows anticorrosive properties.
  • the zinc powder (CAS NO 7440-66-6) used in the rust-preventive coating may react with water, and in particular, acids, bases, metals, oxidizing agents, reducing agents, halocarbon compounds, metal salts, halogens, combustible materials, and amines. And since it reacts easily with metal oxides and the like, attention is required to not mix with the above compounds.
  • Korean Patent Laid-Open No. 10-1999-0050184 discloses a plate-shaped aluminum surface-coated with a spherical zinc powder and an organic solvent to reduce the surface wettability
  • the flake is composed of a pigment mixed in a weight ratio of 1: 0.03 to 2, an inorganic silicate solvent and other necessary additives, and the mixing weight ratio of the pigment and the inorganic silicate solvent is 85:15 to 95: 5,
  • the zinc powder Has a particle size of 2 to 7 ⁇ m, the particle size of the plate-shaped aluminum flakes is an average length of 20 to 30 ⁇ m ⁇ 5 to 10 ⁇ m ⁇ 0.5 ⁇ m thickness and zinc-based inorganic paints and excellent heat dissipation and domestic patent publication 10-0832147, which contains at least 60% by mass of zinc-based alloy powder, wherein the powder contains at least 10% by mass and less than 30% by mass of aluminum.
  • coating materials for plated steels are described, in the case of the paints as described above, zinc-based powders and various additives and solvents are distributed in a mixed state, and according to the characteristics of zinc powders, zinc powder is reacted with various additives and solvents mixed. There was a possibility that a problem of deterioration occurred.
  • the surface hardness of the coating may be low, the color of the coating may be lowered, and the electrical conductivity may be lowered when the zinc powder is added in an excessive amount.
  • pH high base
  • An object of the present invention is to use a plate-like zinc powder, the surface hardness is high, the color is not degraded, and even if added in excess of zinc powder provides a film that suppresses the degradation of the electrical conductivity, high temperature or high pH (high base)
  • a water-based color coating composition in which a plate-like zinc powder is mixed to provide a film in which the binder is not deteriorated in stability to maintain a physical property.
  • Another object of the present invention is a chromate treatment agent which is applied to a component of a metal material which is easily corroded by high temperature heat and corrosion conditions having various chemical properties such as structures such as metal refining plant and food chemical plant. It is possible to replace, and to provide an aqueous color paint composition is mixed with an environmentally friendly plate-like zinc powder because it is based on water.
  • Still another object of the present invention is to provide an aqueous color coating composition in which plate-like zinc powder is mixed, which is applied to a conventional coating layer as a top, to improve the appearance and scratch prevention and anticorrosive effect.
  • Another object of the present invention is applicable to building materials, iron, aluminum and other metal products containing a variety of colors containing an aqueous polyurethane mixture, and strong inorganic, unlike the base component of the general paint only carbon bonds Due to its tendency to disperse urethane particles dispersed with siloxane bonds, the bonding angle and length are very large, and the bonding energy is high, providing a coating film with improved hardness and durability compared to conventional paints, and deteriorating the coating film without absorbing ultraviolet rays. It is suppressed to provide an excellent color preservation effect, to provide an aqueous color coating composition mixed with a plate-like zinc powder exhibiting excellent anti-rusting properties and fast drying speed.
  • An object of the present invention is achieved by providing an aqueous color coating composition in which a plate-like zinc powder is mixed, which is made by uniformly mixing an aqueous liquid binder, a water-soluble polyurethane mixture and a plate-like zinc powder just before coating.
  • the aqueous color coating composition mixed with the plate-like zinc powder is composed of 100 parts by weight of the aqueous liquid binder, 45 to 100 parts by weight of the water-soluble polyurethane mixture and 30 to 50 parts by weight of the plate-like zinc powder.
  • the aqueous liquid binder is 100 parts by weight of purified water, 720 to 750 parts by weight of potassium silicate, 150 to 200 parts by weight of colloidal silica, 2 to 3 parts by weight of diutan gum, 10 to 30 water-soluble polyaniline It is supposed to consist of parts by weight and 2 to 3 parts by weight of octylphenol ethoxylate.
  • the water-soluble polyurethane mixture is 100 parts by weight of purified water, 110 to 130 parts by weight of pigment, 10 to 15 parts by weight of antifoaming agent, 1 to 3 parts by weight of dispersant, 80 to 100 parts by weight of coating film forming aid, It shall consist of 0.5-1 weight part of preservatives, and 550-650 weight part of water-soluble polyurethanes.
  • the plate-like zinc powder is 15 to 20 micrometers in length, 3 to 7 micrometers in width and 0.4 to 0.6 micrometers in thickness.
  • the aqueous color coating composition in which the plate-like zinc powder is mixed according to the present invention uses a plate-like zinc powder to form a film having high hardness and color without deterioration, and even when an excessive amount of zinc powder is added, the reduction in electrical conductivity is suppressed.
  • the binder which does not reduce stability even at high temperature or high pH (high base) is used, and shows the outstanding effect of forming the film in which a physical property is maintained.
  • urethane mixtures which can be applied to building materials and steel, aluminum and other metal products that require various colors.
  • the urethane particles dispersed together are composed of very large bonding angles and lengths, and the binding energy is high, providing a coating with improved hardness and durability compared to conventional coatings. It shows excellent antirust and fast drying speed.
  • FIG. 1 is a photograph showing a spherical zinc powder used in the prior art by scanning electron microscope.
  • Figure 2 is a photograph showing the plate-shaped zinc powder used in the present invention by electron scanning microscope.
  • Figure 3 is a photograph showing the impact resistance of the water-based color coating composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention.
  • Figure 4 is a photograph showing the salt water resistance of the water-based color coating composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention.
  • Example 5 is a photograph showing a cross cut & Erichsen test of the aqueous color paint composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention.
  • Figure 6 is a photograph showing a pencil hardness test of the aqueous color paint composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention.
  • Example 7 is a photograph showing the bendability test of the aqueous color paint composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention.
  • the aqueous color coating composition in which the plate-like zinc powder is mixed according to the present invention is made by uniformly mixing an aqueous liquid binder, a water-soluble polyurethane mixture and a plate-like zinc powder just before coating, and 100 parts by weight of an aqueous liquid binder, a water-soluble polyurethane mixture. It is preferable that it consists of 45-100 weight part and 30-50 weight part of plate-shaped zinc powders.
  • the aqueous color paint composition having the above components is separately packaged separately after the aqueous liquid binder and water-soluble polyurethane mixture ingots and potassium potassium silicate to prevent alteration of the zinc powder and then separately coated It is preferable to mix and use.
  • the aqueous liquid binder is 100 parts by weight of purified water, 720 to 750 parts by weight of potassium silicate, 150 to 200 parts by weight of colloidal silica, 2 to 3 parts by weight of diutan gum, 10 to 30 parts by weight of water-soluble polyaniline and octylphenol It consists of 2-3 parts by weight of ethoxylate.
  • the purified water serves to disperse solid content among the components constituting the aqueous color paint composition in which the plate-like zinc powder according to the present invention is mixed, and when the mixing amount of the purified water is less than 100 parts by weight, the coating layer formed of the aqueous color paint composition according to the present invention. If the thickness of the non-uniformity or workability is lowered, and the mixing amount of the purified water exceeds 100 parts by weight, the viscosity of the aqueous color paint composition according to the present invention is too low, the coating film layer is not properly formed.
  • distilled water from which various compounds or ions are removed in the water or deionized water that has passed through an ion exchange membrane so that the purified water does not generate a compound that reacts with a compound such as magnesium oxide or chromic acid contained in the water.
  • the potassium silicate is well diluted in purified water, and when purified water evaporates, it acts as an adhesive and a binder as a medium to fix the zinc powder on the metal surface, increases the tension of the surface of the coating layer, and makes the surface beautiful.
  • the mixing amount of the potassium silicate is less than 720 parts by weight, there is a fear that the adhesion of the coating film layer is lowered, and when the mixing amount of the potassium silicate exceeds 750 parts by weight, the amount of colloidal silica or purified water decreases as the amount of zinc decreases.
  • the binding property of the powder may be reduced or the paintability may be reduced.
  • the colloidal silica has a large number of OH- groups on its surface, and has siloxane bonds (Si-O-Si) inside, so it has properties such as bonding, heat resistance, film formation, and adsorption, and thus potassium silicate and
  • the action of binding to the zinc powder it is preferably mixed in 150 to 200 parts by weight based on 100 parts by weight of purified water.
  • the mixed amount of the colloidal silica is less than 150 parts by weight, the bondability with potassium silicate and zinc powder may be reduced, and when the mixed amount of the colloidal silica exceeds 200 parts by weight, the amount of the mixed water, such as purified water, is relatively small. As a result, workability may be degraded.
  • the diutan gum acts as a thickener to improve viscosity in the aqueous liquid binder.
  • the diutan gum exhibits stable physical properties under high temperature or high base and salt conditions, and is mixed in 2 to 3 parts by weight.
  • the content of the diutan gum is less than 2 parts by weight, the effect of improving the viscosity of the aqueous liquid binder is insignificant.
  • the content of the diutan gum is more than 3 parts by weight, the viscosity of the aqueous liquid binder is excessively improved to improve workability. This lowers and increases the manufacturing cost.
  • the water-soluble polyaniline serves to impart conductivity to the water-soluble liquid binder, and contains 10 to 30 parts by weight.
  • the content of the water-soluble polyaniline is less than 10 parts by weight, the effect of improving conductivity is minimal, and the content of the water-soluble polyaniline is Exceeding 30 parts by weight increases the manufacturing cost without significantly improving conductivity.
  • the octyl phenol ethoxylate serves as an antioxidant to prevent the oxidation of the aqueous liquid binder, it contains 2 to 3 parts by weight, if the mixed amount of octyl phenol ethoxylate is less than 2 parts by weight of the aqueous Colloidal silica and the like in the liquid binder composition may be oxidized.
  • the mixed amount of the octyl phenol ethoxylate exceeds 3 parts by weight, the effect of anti-oxidation is not greatly improved and the manufacturing cost is increased.
  • the water-soluble polyurethane mixture contains 45 to 100 parts by weight, 100 parts by weight of purified water, 110 to 130 parts by weight of pigment, 10 to 15 parts by weight of antifoaming agent, 1 to 3 parts by weight of dispersant, 80 to 100 parts by weight of coating film forming aid, preservative 0.5 to 1 parts by weight and 550 to 650 parts by weight of water-soluble polyurethane, which improves the hardness, durability, rust resistance and scratch resistance of the coating film made of an aqueous color coating composition mixed with plate-like zinc powder, and the color of the coating film is changed. It acts to suppress things.
  • the pigment serves to give a raw material to the aqueous color paint composition mixed with the plate-like zinc powder according to the present invention
  • the component is not particularly limited and may be used in various kinds according to the desired color, the content of the pigment 110 weight If the amount is less than the expression of the color may be lowered, if the content of the pigment exceeds 130 parts by weight, the dispersibility of the pigment particles may be lowered to form an uneven surface of the coating film.
  • the antifoaming agent serves to suppress the generation of bubbles in the coating film formed of the aqueous color paint composition mixed with the plate-like zinc powder according to the present invention
  • the component is not particularly limited and can be used freely as long as it can be used in the coating have.
  • the defoaming effect is insignificant.
  • the content of the antifoaming agent exceeds 15 parts by weight, the defoaming effect is not significantly improved to increase the manufacturing cost.
  • the dispersant plays a role of improving the dispersibility of the zinc powder particles, and any dispersant may be used as long as it is a component that improves the dispersibility of the zinc powder.
  • the content of the dispersant is less than 1 part by weight, the powder coating property of the zinc powder is lowered, and the smoothness of the coating film is lowered. If the content of the dispersant is more than 3 parts by weight, the dispersibility is not greatly improved, thereby increasing the manufacturing cost.
  • the coating film forming aid serves to improve the drying speed of the coating film and the film hardness after film formation.
  • the content of the film forming aid is less than 80 parts by weight, the drying speed of the coating film and the film hardness after completion of the coating film are decreased.
  • the color expression effect is lowered, and when the content of the coating film forming aid exceeds 100 parts by weight, the film may be peeled off during impact due to the post mud crack phenomenon and the coating film hardness.
  • the preservative serves to prevent the growth of microorganisms such as bacteria and bacteria in the aqueous color paint composition mixed with the plate-like zinc powder according to the present invention so that the physical properties can be maintained, and the content of the preservative is less than 0.5 parts by weight. If the above effect is insignificant, and if the content of the preservative exceeds 1 part by weight, the above effect is not greatly improved to increase the manufacturing cost.
  • the water-soluble polyurethane Since the water-soluble polyurethane exhibits excellent water resistance and impact resistance, it plays a role of improving the hardness, durability, rust resistance, scratch resistance and impact resistance of the coating film formed of the aqueous color coating composition mixed with the plate-like zinc powder according to the present invention. In addition to the above effects, it serves to shorten the drying time of the coating film.
  • the content of the water-soluble polyurethane is less than 550 parts by weight, since the content of purified water, pigment, antifoaming agent, dispersant, coating film forming aid and preservative increases, entanglement of the resin may occur, and the content of the water-soluble polyurethane When the amount exceeds 650 parts by weight, the content of purified water, pigment, antifoaming agent, dispersant, coating agent, and preservative may be reduced, thereby minimizing the effects listed above.
  • the plate-like zinc powder may contain 30 to 50 parts by weight, and may react with water, and particularly easily react with acids, bases, metals, oxidizing agents, reducing agents, halo carbon compounds, metal salts, halogens, combustibles, amines, and metal oxides. Therefore, attention is required to not mix with the above compounds.
  • the aqueous color coating composition according to the present invention is separated and packaged so that the zinc powder does not deteriorate in response to the water of the aqueous liquid binder in advance, thereby excellent in the characteristics of thermal oxidation or corrosion protection of metal materials such as steel, and is about 500 ° C. It is characterized by excellent heat resistance and corrosion resistance at high temperatures up to.
  • the plate-like zinc powder used in the present invention is a pigment showing an rust-preventing effect, in order to prevent deterioration of the plate-like zinc powder should be separately packed from the aqueous liquid binder and the water-soluble polyurethane mixture.
  • the mixing amount of the plate-like zinc powder is less than 30 parts by weight, when the aqueous color coating composition according to the present invention is formed on the surface of the metal, the content of the plate-like zinc powder is too small in the coating coating layer, so that the corrosion resistance of the coating layer is lowered.
  • the content of the plate-like zinc powder exceeds 50 parts by weight, the adhesion of the coating layer is lowered because it is not homogeneously mixed with the aqueous liquid binder and the water-soluble urethane mixture, so that the coating layer may be lifted from the metal.
  • the plate-like zinc powder as shown in Figure 2 below, conventionally shows a plate-like, unlike spherical zinc powder, the length is 15 to 20 micrometers, the width is 3 to 7 micrometers, the thickness is 0.4 to 0.6 micrometers It is preferable that the meter be used, but the zinc phosphate powder exhibiting the particle size as described above is homogeneously dispersed in the aqueous liquid binder and the water-soluble polyurethane mixture, thereby improving the corrosion resistance property.
  • Water-soluble in 100 parts by weight of an aqueous liquid binder (100 parts by weight of purified water, 735 parts by weight of potassium silicate, 175 parts by weight of colloidal silica, 2.5 parts by weight of diutan gum, 20 parts by weight of water-soluble polyaniline and 2.5 parts by weight of octylphenol ethoxylate) 70 parts by weight of polyurethane mixture (100 parts by weight of purified water, 120 parts by weight of pigment, 12 parts by weight of antifoaming agent, 2 parts by weight of dispersant, 90 parts by weight of coating film forming aid, 0.7 parts by weight of preservative, and 600 parts by weight of water-soluble polyurethane) 70 parts by weight and plate zinc 40 parts by weight of powder (15 to 20 micrometers in length, 3 to 7 micrometers in width, 0.4 to 0.6 micrometers in thickness) were mixed to prepare an aqueous color coating composition in which plate-like zinc powder was mixed.
  • an aqueous liquid binder 100 parts by weight of purified
  • the impact resistance of the water-based color paint composition mixed with the plate-like zinc powder prepared in Example 1 was measured in Figure 3 below, the salt water resistance was measured below Figure 4, Cross cut & Erichsen test was carried out below Figure 5, pencil The hardness test was performed to perform the bending test shown in FIG. 6 and below.
  • the impact resistance test was applied to the steel plate coating the aqueous color paint composition prepared in Example 1 mixed with a thickness of 20 ⁇ m to prepare a test piece and carried out through ASTM D 2794, in more detail
  • a weight of 1/2 diameter and a weight of 500 g were dropped at a height of 50 cm, and then a tape was attached to the test piece to check peeling and cracking of the coating film.
  • the salt resistance test was conducted through ASTM B 117. More specifically, the test piece was sprayed with 35 ° C. and 5% NaCl solution to check corrosion and blister generation on the plane and X-cut area of the test piece.
  • Cross cut & Erichsen test was carried out according to ASTM D 3359. More specifically, cross cuts (100 cells) were made at 1 mm intervals, and then pressure was applied to the cross cut area of the test piece using Erichsen to peel off the coating film. was used to observe the method,
  • the pencil hardness test was carried out according to ASTM D 3363, more specifically, the method of testing the hardness of the standardized flue coating film of the specified hardness,
  • the coating film made of an aqueous color paint composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention is free from peeling or cracking in impact resistance test, even after 700 hours in saline resistance test There is no red blue or blister shape, and in the Cross cut & Erichsen test (CET), there is no peeled rectangular grid and it corresponds to the separation standard 5B in the standard, and the pencil hardness test result shows 5H to 6H, and satisfies the bending test result 1T. It was.
  • CET Cross cut & Erichsen test
  • the present invention relates to an aqueous color coating composition in which a plate-like zinc powder is mixed, and more particularly, an aqueous polyurethane mixture is contained and is applicable to construction equipment, steel, aluminum and other metal products. Due to the strong inorganic tendency, unlike the carbon bond alone, the urethane particles dispersed together with the siloxane bond are composed of a very large bonding angle and length, and the bonding energy is high, thus providing a coating with improved hardness and durability compared to conventional paints. Deterioration of the coating film is suppressed without absorbing ultraviolet rays, so that it shows an excellent color preservation effect, and can be used in an aqueous color coating composition in which a plate-like zinc powder exhibiting excellent rust resistance and fast drying speed is mixed.

Abstract

The present invention relates to an aqueous colored pigment composition mixed with a plate-like zinc powder and, more specifically, is formed by uniformly mixing, immediately before a coating operation, an aqueous liquid binder, a water-soluble polyurethane mixture, and a plate-like zinc powder. The aqueous colored pigment composition comprising the components has excellent characteristics of preventing thermal oxidation or corrosion of a metal material such as an iron material, so as to be suitable for coating a metal material receiving a high temperature heat up till 500°C, thereby having an advantage of being applicable to metal material components, such as in a structure of a metal refinery plant, a food chemistry plant, and the like, readily corroded by a high temperature heat and under corrosion conditions having various chemical characteristics, enabling the replacement of a chromate treatment, which is a post-treatment agent of hot-dip galvanization, forming a film with remarkably improved hardness, conductivity and corrosion resistance since a plate-like zinc powder is mixed instead of a spherical zinc powder, and exhibiting excellent corrosion resistance, scratch resistance and impact resistance.

Description

판상 아연분말이 혼합된 수성 컬러도료 조성물Aqueous color paint composition mixed with plate-like zinc powder
본 발명은 판상 아연분말이 혼합된 수성 컬러도료 조성물에 관한 것으로, 더욱 상세하게는 수성 폴리우레탄 혼합물이 함유되어 건축용 기자재, 철재, 알루미늄 및 기타 금속 제품에 적용이 가능하며, 일반 도료의 베이스 성분이 탄소결합만으로 이루어진 것과는 다르게 강한 무기적 성향으로 인해 실록산 결합과 함께 수분산된 우레탄 입자가 연결 구성되어 결합각과 길이가 매우 크며 결합에너지가 높아 종래의 도료에 비해 경도 및 내구성이 향상된 도막을 제공하고, 자외선을 흡수하지 않고 도막의 열화가 억제되어 우수한 색상 보존효과를 나타내며, 우수한 방청성과 빠른 건조속도를 나타내는 판상 아연분말이 혼합된 수성 컬러도료 조성물에 관한 것이다.The present invention relates to an aqueous color coating composition in which a plate-like zinc powder is mixed, and more particularly, an aqueous polyurethane mixture is contained and is applicable to construction equipment, steel, aluminum and other metal products. Due to the strong inorganic tendency, unlike the carbon bond alone, the urethane particles dispersed together with the siloxane bond are composed of a very large bonding angle and length, and the bonding energy is high, thus providing a coating with improved hardness and durability compared to conventional paints. The present invention relates to an aqueous color coating composition in which plate-like zinc powder is mixed, which exhibits excellent color preservation effect by suppressing deterioration of a coating film without absorbing ultraviolet rays and exhibiting excellent rust preventing property and fast drying speed.
일반적으로 석유 정제플랜트, 금속 정제플랜트, 식품화학공장 플랜트 등과 같은 구조물에 적용되는 금속소재는 각종 화학적 특성을 가진 부식조건과 고온의 열에 의해 쉽게 금속소재가 부식되므로 이를 방지하기 위하여 방식처리를 한다.In general, metal materials applied to structures such as petroleum refining plants, metal refining plants, and food chemical plant plants are subjected to anticorrosive treatment in order to prevent corrosion of metal materials due to corrosion conditions having various chemical properties and high temperature heat.
상기와 같은 경우 부식환경으로부터 구조물을 보호하기 위한 방안으로 다양한 부식방지법의 개발 등이 요구되고 있으며, 일반적인 금속 표면에 부식을 방지하기 위한 방법으로는 금속표면을 균일화 하고 부분적인 전위차를 적게하는 표면처리방법, 국부전지중 양극 또는 음극 중 어느 것 이든지 하나의 반응을 억제시키는 전기방식 및 금속표면에 전기저항이 높은 피막을 입히는 피막코팅법이 있으며, 이와같은 부식방지 이론에 따라 강재의 부식을 방지할 목적으로 도장하는 도료를 특히 방식 도료라고 한다. 각 플랜트에 사용되는 것은 플랜트의 종류 및 기능, 환경 및 내구성 등의 요인을 가미시킨 방식도료 선정, 도장법의 선택 및 도장 시스템 선정이 이루어져서 도장설계가 되어야 한다.In the above cases, development of various corrosion prevention methods is required as a method for protecting a structure from a corrosive environment. As a method for preventing corrosion on a general metal surface, surface treatment is performed to uniformize the metal surface and reduce partial potential difference. Method, an electric method that suppresses one reaction in either the positive electrode or the negative electrode of the local battery, and the film coating method of coating a high electrical resistance film on the metal surface. The coating material coated for the purpose is especially called an anticorrosive paint. For each plant, the design should be made by selecting anti-corrosive paint, painting method, and painting system by adding factors such as plant type and function, environment and durability.
상기의 방법 중에서 아연분말을 다량으로 배합시킨 아연분말 도료는 음극 보호 방식 효과를 이용한 도료로 후속도장 도료는 주로 중 방식도료가 사용된다. 보통 에폭시 수지계, 탈에폭시수지계, 우레탄계 도료를 후속 도장하여 장기중방식을 도모하며 부식성이 심한 환경에 많이 적용된다. 특히, 무기 징크 페인트는 방식효과뿐만 아니라 내열성도 우수하다.In the above method, the zinc powder coating containing a large amount of zinc powder is a coating using a negative electrode protection anticorrosive effect, and the subsequent coating is mainly a heavy anticorrosive coating. In general, the epoxy resin, deepoxy resin, and urethane paints are subsequently applied to promote long-term method and are widely applied in highly corrosive environment. In particular, the inorganic zinc paint has excellent heat resistance as well as anticorrosive effect.
아연분말 도료는 음극 방식의 원리를 적용시킨 도료로서, 아연금속이 일반적으로 철보다 이온화 경향이 높아 두 금속이 전해질 속에 공존할 경우 국부 전지를 형성하여 전자가 아연(양극)에서 철(음극)로 흐르게 되고, 아연(양극)이 부식당함과 동시에 철(음극)은 보호를 받아 방식특성을 나타내는 원리이다.Zinc powder paint is a negative electrode principle. Zinc metal generally has higher ionization tendency than iron, so when two metals coexist in electrolyte, a local battery is formed and electrons are transferred from zinc (anode) to iron (cathode). As the zinc flows and the zinc (anode) is corroded, iron (cathode) is protected and is a principle that shows anticorrosive properties.
상기와 같이 방청도료에 사용하는 아연 분말(CAS NO 7440-66-6)은 물과 반응할 수도 있으며, 특히 산, 염기, 금속, 산화제, 환원제, 할로 탄소 화합물, 금속염, 할로겐, 가연성 물질, 아민 및 금속 산화물 등과는 쉽게 반응을하므로 상기와 같은 화합물과는 혼합을 하지않아야 하는 주의성이 요구되고 있다.As described above, the zinc powder (CAS NO 7440-66-6) used in the rust-preventive coating may react with water, and in particular, acids, bases, metals, oxidizing agents, reducing agents, halocarbon compounds, metal salts, halogens, combustible materials, and amines. And since it reacts easily with metal oxides and the like, attention is required to not mix with the above compounds.
한편, 상기와 같이 아연분말을 사용한 도료에 대한 기술들이 특허 출원된 현황을 살펴보면, 국내 공개특허공보 제10-1999-0050184호에는 구형 아연 분말과 표면 젖음성을 저하시키는 유기 용제로 표면코팅된 판형 알루미늄 플레이크가 1:0.03 내지 2의 중량비로 혼합된 안료와, 무기 실리케이트 용매 및 기타 필요로 하는 첨가제로 구성되고, 상기 안료와 무기 실리케이트 용매의 혼합 중량비는 85:15 내지 95:5이며, 상기 아연 분말의 입자 크기는 2 내지 7㎛이고, 상기 판형 알루미늄 플레이크의 입자 크기는 평균 길이 20 내지 30㎛ × 폭 5 내지 10㎛ × 두께 0.5㎛인 방식 및 방열성이 우수한 아연계 무기 도료와 국내 등록특허공보 제10-0832147호에 아연계 합금 분말을 60 질량% 이상 함유하는 도료로서, 상기 분말이 알루미늄을 10 질량% 이상 30 질량% 미만 포함하고, 잔부가 아연 및 불가피한 불순물로 이루어지는 조성으로서, 또한 상기 분말의 형상이 구상 또는 타원 구상이고 그 최대 지름과 최소 지름의 비(최대 지름/최소 지름)가 1 내지 1.5인 것을 특징으로 하는 고내식성 아연계 합금 도금 강재용 도료가 기재되어 있으나, 상기와 같은 도료들의 경우에는 아연계 분말과 각종 첨가제 및 용매들이 혼합된 상태로 유통됨에 따라 아연 분말의 특성상 혼합된 각종 첨가제 및 용매들과의 반응으로 아연 분말의 방식성을 저하시키는 문제점이 발생할 가능성이 있었다.On the other hand, looking at the current state of the patent applications of the technology for the coating using zinc powder, Korean Patent Laid-Open No. 10-1999-0050184 discloses a plate-shaped aluminum surface-coated with a spherical zinc powder and an organic solvent to reduce the surface wettability The flake is composed of a pigment mixed in a weight ratio of 1: 0.03 to 2, an inorganic silicate solvent and other necessary additives, and the mixing weight ratio of the pigment and the inorganic silicate solvent is 85:15 to 95: 5, the zinc powder Has a particle size of 2 to 7㎛, the particle size of the plate-shaped aluminum flakes is an average length of 20 to 30㎛ × 5 to 10㎛ × 0.5㎛ thickness and zinc-based inorganic paints and excellent heat dissipation and domestic patent publication 10-0832147, which contains at least 60% by mass of zinc-based alloy powder, wherein the powder contains at least 10% by mass and less than 30% by mass of aluminum. Is a composition composed of zinc and inevitable impurities, and the powder is spherical or elliptic in shape, and the ratio of the maximum diameter to the minimum diameter (maximum diameter / minimum diameter) is 1 to 1.5, wherein the highly corrosion-resistant zinc-based alloy Although coating materials for plated steels are described, in the case of the paints as described above, zinc-based powders and various additives and solvents are distributed in a mixed state, and according to the characteristics of zinc powders, zinc powder is reacted with various additives and solvents mixed. There was a possibility that a problem of deterioration occurred.
또한, 상기의 도료들은 구상의 아연분말이 사용되기 때문에, 피막의 표면경도가 낮고 피막의 색상이 저하될 수 있으며, 아연분말의 과량으로 첨가되었을 경우에 전기전도성이 저하될 수 있으며, 고온이나 높은 pH(고염기)에서는 바인더의 안정성이 저하되는 문제점이 있었다.In addition, since the above-described coatings are used in the form of spherical zinc powder, the surface hardness of the coating may be low, the color of the coating may be lowered, and the electrical conductivity may be lowered when the zinc powder is added in an excessive amount. At pH (high base), there was a problem in that the stability of the binder was lowered.
본 발명의 목적은 판상의 아연분말을 사용하여 표면경도가 높고 색상이 저하되지 않으며, 아연분말의 과량으로 첨가되어도 전기전도성의 저하현상이 억제되는 피막을 제공하며, 고온이나 높은 pH(고염기)에서도 안정성이 저하되지 않는 바인더가 사용되어 물성이 유지되는 피막을 제공하는 판상 아연분말이 혼합된 수성 컬러도료 조성물을 제공하는 것이다.An object of the present invention is to use a plate-like zinc powder, the surface hardness is high, the color is not degraded, and even if added in excess of zinc powder provides a film that suppresses the degradation of the electrical conductivity, high temperature or high pH (high base) In the present invention, there is provided a water-based color coating composition in which a plate-like zinc powder is mixed to provide a film in which the binder is not deteriorated in stability to maintain a physical property.
본 발명의 다른 목적은 금속 정제플랜트, 식품화학공장 플랜트 등과 같은 구조물과 같이 각종 화학적 특성을 가진 부식조건과 고온의 열에 의해 쉽게 부식되는 금속소재의 부품에 적용하거나 용융아연도금의 후처리제인 크로메이트 처리제를 대체할 수 있으며, 물을 기반으로 하기 때문에 친환경적인 판상 아연분말이 혼합된 수성 컬러도료 조성물을 제공하는 것이다.Another object of the present invention is a chromate treatment agent which is applied to a component of a metal material which is easily corroded by high temperature heat and corrosion conditions having various chemical properties such as structures such as metal refining plant and food chemical plant. It is possible to replace, and to provide an aqueous color paint composition is mixed with an environmentally friendly plate-like zinc powder because it is based on water.
본 발명의 또 다른 목적은 종래의 도료층에 상도로 적용되면, 미려한 외관 및 스크래치 방지 및 방식효과를 향상시키는 판상 아연분말이 혼합된 수성 컬러도료 조성물을 제공하는 것이다.Still another object of the present invention is to provide an aqueous color coating composition in which plate-like zinc powder is mixed, which is applied to a conventional coating layer as a top, to improve the appearance and scratch prevention and anticorrosive effect.
본 발명의 또 다른 목적은 수성 폴리우레탄 혼합물이 함유되어 다양한 색상을 요구하는 건축용 기자재, 철재, 알루미늄 및 기타 금속 제품에 적용이 가능하며, 일반 도료의 베이스 성분이 탄소결합만으로 이루어진 것과는 다르게 강한 무기적 성향으로 인해 실록산 결합과 함께 수분산된 우레탄 입자가 연결 구성되어 결합각과 길이가 매우 크며 결합에너지가 높아 종래의 도료에 비해 경도 및 내구성이 향상된 도막을 제공하고, 자외선을 흡수하지 않고 도막의 열화가 억제되어 우수한 색상 보존효과를 나타내며, 우수한 방청성과 빠른 건조속도를 나타내는 판상 아연분말이 혼합된 수성 컬러도료 조성물을 제공하는 것이다.Another object of the present invention is applicable to building materials, iron, aluminum and other metal products containing a variety of colors containing an aqueous polyurethane mixture, and strong inorganic, unlike the base component of the general paint only carbon bonds Due to its tendency to disperse urethane particles dispersed with siloxane bonds, the bonding angle and length are very large, and the bonding energy is high, providing a coating film with improved hardness and durability compared to conventional paints, and deteriorating the coating film without absorbing ultraviolet rays. It is suppressed to provide an excellent color preservation effect, to provide an aqueous color coating composition mixed with a plate-like zinc powder exhibiting excellent anti-rusting properties and fast drying speed.
본 발명의 목적은 수성 액체 바인더, 수용성 폴리우레탄 혼합물 및 판상 아연분말을 코팅작업 직전에 균일하게 혼합하여 이루어지는 것을 특징으로 하는 판상 아연분말이 혼합된 수성 컬러도료 조성물을 제공함에 의해 달성된다.An object of the present invention is achieved by providing an aqueous color coating composition in which a plate-like zinc powder is mixed, which is made by uniformly mixing an aqueous liquid binder, a water-soluble polyurethane mixture and a plate-like zinc powder just before coating.
본 발명의 바람직한 특징에 따르면, 상기 판상 아연분말이 혼합된 수성 컬러도료 조성물은 수성 액체 바인더 100 중량부, 수용성 폴리우레탄 혼합물 45 내지 100 중량부 및 판상 아연분말 30 내지 50 중량부로 이루어지는 것으로 한다.According to a preferred feature of the present invention, the aqueous color coating composition mixed with the plate-like zinc powder is composed of 100 parts by weight of the aqueous liquid binder, 45 to 100 parts by weight of the water-soluble polyurethane mixture and 30 to 50 parts by weight of the plate-like zinc powder.
본 발명의 더 바람직한 특징에 따르면, 상기 수성 액체 바인더는 정제수 100 중량부, 규산칼륨 720 내지 750 중량부, 콜로이달 실리카 150 내지 200 중량부, 디우탄검 2 내지 3 중량부, 수용성 폴리아닐린 10 내지 30 중량부 및 옥틸페놀 에톡시레이트 2 내지 3 중량부로 이루어지는 것으로 한다.According to a more preferred feature of the invention, the aqueous liquid binder is 100 parts by weight of purified water, 720 to 750 parts by weight of potassium silicate, 150 to 200 parts by weight of colloidal silica, 2 to 3 parts by weight of diutan gum, 10 to 30 water-soluble polyaniline It is supposed to consist of parts by weight and 2 to 3 parts by weight of octylphenol ethoxylate.
본 발명의 더욱 바람직한 특징에 따르면, 상기 수용성 폴리우레탄 혼합물은 정제수 100 중량부, 안료 110 내지 130 중량부, 소포제 10 내지 15 중량부, 분산제 1 내지 3 중량부, 도막형성조제 80 내지 100 중량부, 방부제 0.5 내지 1 중량부 및 수용성 폴리우레탄 550 내지 650 중량부로 이루어지는 것으로 한다.According to a more preferred feature of the invention, the water-soluble polyurethane mixture is 100 parts by weight of purified water, 110 to 130 parts by weight of pigment, 10 to 15 parts by weight of antifoaming agent, 1 to 3 parts by weight of dispersant, 80 to 100 parts by weight of coating film forming aid, It shall consist of 0.5-1 weight part of preservatives, and 550-650 weight part of water-soluble polyurethanes.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 판상 아연분말은 길이가 15 내지 20 마이크로미터이며, 폭이 3 내지 7 마이크로미터이고, 두께가 0.4 내지 0.6 마이크로미터인 것으로 한다.According to a further preferred feature of the present invention, the plate-like zinc powder is 15 to 20 micrometers in length, 3 to 7 micrometers in width and 0.4 to 0.6 micrometers in thickness.
본 발명에 따른 판상 아연분말이 혼합된 수성 컬러도료 조성물은 판상의 아연분말이 사용되어 경도가 높고 색상이 저하되지 않는 피막을 형성하며, 아연분말의 과량으로 첨가되어도 전기전도성의 저하현상이 억제되며, 고온이나 높은 pH(고염기)에서도 안정성이 저하되지 않는 바인더가 사용되어 물성이 유지되는 피막을 형성하는 탁월한 효과를 나타낸다.The aqueous color coating composition in which the plate-like zinc powder is mixed according to the present invention uses a plate-like zinc powder to form a film having high hardness and color without deterioration, and even when an excessive amount of zinc powder is added, the reduction in electrical conductivity is suppressed. In addition, the binder which does not reduce stability even at high temperature or high pH (high base) is used, and shows the outstanding effect of forming the film in which a physical property is maintained.
또한, 금속 정제플랜트, 식품화학공장 플랜트 등과 같은 구조물과 같이 각종 화학적 특성을 가진 부식조건과 고온의 열에 의해 쉽게 부식되는 금속소재의 부품에 적용하거나 용융아연도금의 후처리제인 크로메이트 처리제를 대체할 수 있으며, 물을 기반으로 하기 때문에 친환경적인 피막을 형성하는 탁월한 효과를 나타낸다.In addition, it can be applied to parts of metal materials that are easily corroded by high temperature heat and corrosion conditions with various chemical properties such as structures such as metal refining plant and food chemical plant, or it can replace chromate treatment agent which is a post-treatment agent of hot dip galvanizing. And because it is based on water, it shows an excellent effect of forming an environmentally friendly film.
또한, 종래의 도료층에 상도로 적용되면, 미려한 외관 및 스크래치 방지 및 방식효과를 향상시키는 피막을 형성하는 탁월한 효과를 나타낸다.In addition, when applied to the coating layer of the prior art, it has an excellent effect of forming a film that improves the beautiful appearance and scratch prevention and anticorrosive effect.
또한, 수성 폴리우레탄 혼합물이 함유되어 건축용 기자재 및 다양한 색상을 요구 하는 철재 및 알루미늄 기타 금속 제품에 적용이 가능하며, 일반 도료의 베이스 성분이 탄소결합만으로 이루어진 것과는 다르게 강한 무기적 성향으로 인해 실록산 결합과 함께 수분산된 우레탄 입자가 연결 구성되어 결합각과 길이가 매우 크며 결합에너지가 높아 종래의 도료에 비해 경도 및 내구성이 향상된 도막을 제공하고, 자외선을 흡수 하지 않고 도막의 열화가 억제되어 우수한 색상 보존효과를 나타내며, 우수한 방청성과 빠른 건조속도를 나타낸다.In addition, it contains water-based polyurethane mixtures, which can be applied to building materials and steel, aluminum and other metal products that require various colors. The urethane particles dispersed together are composed of very large bonding angles and lengths, and the binding energy is high, providing a coating with improved hardness and durability compared to conventional coatings. It shows excellent antirust and fast drying speed.
도 1은 종래에 사용되는 구상 아연분말을 전자주사현미경으로 촬영하여 나타낸 사진이다.1 is a photograph showing a spherical zinc powder used in the prior art by scanning electron microscope.
도 2는 본 발명에 사용되는 판상 아연분말을 전자주사현미경으로 촬영하여 나타낸 사진이다.Figure 2 is a photograph showing the plate-shaped zinc powder used in the present invention by electron scanning microscope.
도 3은 본 발명의 실시예 1을 통해 제조된 판상 아연분말이 혼합된 수성 컬러도료 조성물의 내충격성을 측정하여 나타낸 사진이다.Figure 3 is a photograph showing the impact resistance of the water-based color coating composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention.
도 4는 본 발명의 실시예 1을 통해 제조된 판상 아연분말이 혼합된 수성 컬러도료 조성물의 내염수성을 측정하여 나타낸 사진이다.Figure 4 is a photograph showing the salt water resistance of the water-based color coating composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention.
도 5는 본 발명의 실시예 1을 통해 제조된 판상 아연분말이 혼합된 수성 컬러도료 조성물의 Cross cut & Erichsen 테스트를 실시하여 나타낸 사진이다.5 is a photograph showing a cross cut & Erichsen test of the aqueous color paint composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention.
도 6은 본 발명의 실시예 1을 통해 제조된 판상 아연분말이 혼합된 수성 컬러도료 조성물의 연필경도 테스트를 실시하여 나타낸 사진이다.Figure 6 is a photograph showing a pencil hardness test of the aqueous color paint composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention.
도 7은 본 발명의 실시예 1을 통해 제조된 판상 아연분말이 혼합된 수성 컬러도료 조성물의 굽힘성 테스트를 실시하여 나타낸 사진이다.7 is a photograph showing the bendability test of the aqueous color paint composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention.
이하에는, 본 발명의 바람직한 실시예와 각 성분의 물성을 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.In the following, preferred embodiments of the present invention and the physical properties of each component will be described in detail, which is intended to explain in detail enough to be able to easily carry out the invention by one of ordinary skill in the art, This does not mean that the technical spirit and scope of the present invention is limited.
본 발명에 따른 판상 아연분말이 혼합된 수성 컬러도료 조성물은 수성 액체 바인더, 수용성 폴리우레탄 혼합물 및 판상 아연분말을 코팅작업 직전에 균일하게 혼합하여 이루어지며, 수성 액체 바인더 100 중량부, 수용성 폴리우레탄 혼합물 45 내지 100 중량부 및 판상 아연분말 30 내지 50 중량부로 이루어지는 것이 바람직하다.The aqueous color coating composition in which the plate-like zinc powder is mixed according to the present invention is made by uniformly mixing an aqueous liquid binder, a water-soluble polyurethane mixture and a plate-like zinc powder just before coating, and 100 parts by weight of an aqueous liquid binder, a water-soluble polyurethane mixture. It is preferable that it consists of 45-100 weight part and 30-50 weight part of plate-shaped zinc powders.
본 발명의 특징에 의하면, 상기와 같은 구성성분을 갖는 수성 컬러도료 조성물은 아연 분말의 변질을 방지하기 위해 규산칼륨이 주성분인 수성 액체 바인더 및 수용성 폴리우레탄 혼합물괴 구분하여 별도로 포장한 다음 코팅작업 전에 혼합하여 사용하는 것이 바람직하다.According to the characteristics of the present invention, the aqueous color paint composition having the above components is separately packaged separately after the aqueous liquid binder and water-soluble polyurethane mixture ingots and potassium potassium silicate to prevent alteration of the zinc powder and then separately coated It is preferable to mix and use.
상기 수성 액체 바인더는 정제수 100 중량부, 규산칼륨 720 내지 750 중량부, 콜로이달 실리카 150 내지 200 중량부, 디우탄검(diutan gum) 2 내지 3 중량부, 수용성 폴리아닐린 10 내지 30 중량부 및 옥틸페놀 에톡시레이트 2 내지 3 중량부로 이루어진다.The aqueous liquid binder is 100 parts by weight of purified water, 720 to 750 parts by weight of potassium silicate, 150 to 200 parts by weight of colloidal silica, 2 to 3 parts by weight of diutan gum, 10 to 30 parts by weight of water-soluble polyaniline and octylphenol It consists of 2-3 parts by weight of ethoxylate.
상기 정제수는 본 발명에 따른 판상 아연분말이 혼합된 수성 컬러도료 조성물을 구성하는 성분 중 고형분을 분산시키는 역할을 하는데, 정제수의 혼합량이 100 중량부 미만이면 본 발명에 따른 수성 컬러도료 조성물로 형성된 피막층의 두께가 불균일하거나 또는 작업성이 저하되며, 상기 정제수의 혼합량이 100 중량부를 초과하게 되면 본 발명에 따른 수성 컬러도료 조성물의 점도가 지나치게 낮아져 코팅 피막층이 제대로 형성되지 않는다.The purified water serves to disperse solid content among the components constituting the aqueous color paint composition in which the plate-like zinc powder according to the present invention is mixed, and when the mixing amount of the purified water is less than 100 parts by weight, the coating layer formed of the aqueous color paint composition according to the present invention. If the thickness of the non-uniformity or workability is lowered, and the mixing amount of the purified water exceeds 100 parts by weight, the viscosity of the aqueous color paint composition according to the present invention is too low, the coating film layer is not properly formed.
또한, 상기 정제수는 가능한 물 속에 함유된 산화마그네슘, 크롬산 등의 화합물과 반응하는 화합물이 발생하지 않도록 물속에 함유된 각종 화합물이나 이온들을 제거한 증류수나 또는 이온교환막을 거친 탈이온수를 사용하는 것이 바람직하다.In addition, it is preferable to use distilled water from which various compounds or ions are removed in the water or deionized water that has passed through an ion exchange membrane so that the purified water does not generate a compound that reacts with a compound such as magnesium oxide or chromic acid contained in the water. .
상기 규산칼륨(Potassium Silicate)은 정제수에 잘 희석되고, 정제수가 증발되면 아연분말을 금속 표면에 고정시키는 매개물로서 접착제 및 바인더의 작용을 하고, 코팅 도막층 표면의 장력을 증가시키고, 표면을 미려하게 만드는 열 저항력을 가지는 특성이 있는데, 정제수 100 중량부에 대해 720 내지 750 중량부로 혼합되는 것이 바람직하다.The potassium silicate is well diluted in purified water, and when purified water evaporates, it acts as an adhesive and a binder as a medium to fix the zinc powder on the metal surface, increases the tension of the surface of the coating layer, and makes the surface beautiful. There is a characteristic that has a heat resistance to make, it is preferably mixed in 720 to 750 parts by weight based on 100 parts by weight of purified water.
상기 규산칼륨의 혼합량이 720 중량부 미만인 경우에는 코팅 도막층의 접착력이 저하할 우려가 있고, 규산칼륨의 혼합량이 750 중량부를 초과하는 경우에는 상대적으로 콜로이달 실리카 또는 정제수의 혼합량이 적어짐에 따라 아연분말의 결합성이 저하하거나 도장 작업성이 저하될 수 있다.When the mixing amount of the potassium silicate is less than 720 parts by weight, there is a fear that the adhesion of the coating film layer is lowered, and when the mixing amount of the potassium silicate exceeds 750 parts by weight, the amount of colloidal silica or purified water decreases as the amount of zinc decreases. The binding property of the powder may be reduced or the paintability may be reduced.
상기 콜로이달 실리카(Colloidal Silica)는 표면에 다수의 OH-기를 갖고 있으며, 내부에는 실록산 결합(Si-O-Si)을 이루고 있으므로 결합성, 내열성, 조막성 및 흡착성 등의 특성이 있어 규산칼륨 및 아연분말과 결합하는 작용을 하는데, 정제수 100 중량부에 대해 150 내지 200 중량부로 혼합되는 것이 바람직하다.The colloidal silica has a large number of OH- groups on its surface, and has siloxane bonds (Si-O-Si) inside, so it has properties such as bonding, heat resistance, film formation, and adsorption, and thus potassium silicate and The action of binding to the zinc powder, it is preferably mixed in 150 to 200 parts by weight based on 100 parts by weight of purified water.
상기 콜로이달 실리카의 혼합량이 150 중량부 미만인 경우에는 규산칼륨 및 아연분말과의 결합성이 저하될 수 있으며, 상기 콜로이달 실리카의 혼합량이 200 중량부를 초과하는 경우에는 상대적으로 정제수 등의 혼합량이 적어짐에 따라 작업성등이 저하될 수 있다.When the mixed amount of the colloidal silica is less than 150 parts by weight, the bondability with potassium silicate and zinc powder may be reduced, and when the mixed amount of the colloidal silica exceeds 200 parts by weight, the amount of the mixed water, such as purified water, is relatively small. As a result, workability may be degraded.
상기 디우탄검은 상기 수성 액체 바인더에 점도를 향상시키는 증점제의 역할을 하는데, 종래에 사용되던 잔탄검(Xanthan gum)에 비해 고온이나 고염기 및 염의 조건에서 안정적인 물성을 나타내며 2 내지 3 중량부가 혼합되는데, 상기 디우탄검의 함량이 2 중량부 미만이면 수성 액체 바인더의 점도를 향상시키는 효과가 미미하며, 상기 디우탄검의 함량이 3 중량부를 초과하게 되면 수성 액체 바인더의 점도가 지나치게 향상되어 작업성이 저하되며 제조비용을 증가시키게 된다.The diutan gum acts as a thickener to improve viscosity in the aqueous liquid binder. Compared to the conventional Xanthan gum, the diutan gum exhibits stable physical properties under high temperature or high base and salt conditions, and is mixed in 2 to 3 parts by weight. When the content of the diutan gum is less than 2 parts by weight, the effect of improving the viscosity of the aqueous liquid binder is insignificant. When the content of the diutan gum is more than 3 parts by weight, the viscosity of the aqueous liquid binder is excessively improved to improve workability. This lowers and increases the manufacturing cost.
상기 수용성 폴리아닐린은 상기 수용성 액체 바인더에 전도성을 부여하는 역할을 하며, 10 내지 30 중량부가 함유되는데, 상기 수용성 폴리아닐린의 함량이 10 중량부 미만이면 전도성의 향상효과가 미미하며, 상기 수용성 폴리아닐린의 함량이 30 중량부를 초과하게 되면 전도성은 크게 향상되지 않으면서 제조비용을 증가시키게 된다.The water-soluble polyaniline serves to impart conductivity to the water-soluble liquid binder, and contains 10 to 30 parts by weight. When the content of the water-soluble polyaniline is less than 10 parts by weight, the effect of improving conductivity is minimal, and the content of the water-soluble polyaniline is Exceeding 30 parts by weight increases the manufacturing cost without significantly improving conductivity.
상기 옥틸페놀에톡시레이트(Octyl Phenol Ethoxylate)는 수성 액체 바인더 의 산화를 방지하는 산화방지제의 역할을 하며, 2 내지 3 중량부가 함유되는데, 상기 옥틸페놀에톡시레이트의 혼합량이 2 중량부 미만이면 수성 액체 바인더 조성물 내의 콜로이달 실리카 등이 산화될 수 있으며, 상기 옥틸페놀에톡시레이트의 혼합량이 3 중량부를 초과하게 되면 산화방지의 효과는 크게 향상되지 않으면서 제조비용을 증가시키게 된다.The octyl phenol ethoxylate (Octyl Phenol Ethoxylate) serves as an antioxidant to prevent the oxidation of the aqueous liquid binder, it contains 2 to 3 parts by weight, if the mixed amount of octyl phenol ethoxylate is less than 2 parts by weight of the aqueous Colloidal silica and the like in the liquid binder composition may be oxidized. When the mixed amount of the octyl phenol ethoxylate exceeds 3 parts by weight, the effect of anti-oxidation is not greatly improved and the manufacturing cost is increased.
상기 수용성 폴리우레탄 혼합물은 45 내지 100 중량부가 함유되며, 정제수 100 중량부, 안료 110 내지 130 중량부, 소포제 10 내지 15 중량부, 분산제 1 내지 3 중량부, 도막형성조제 80 내지 100 중량부, 방부제 0.5 내지 1 중량부 및 수용성 폴리우레탄 550 내지 650 중량부로 이루어지는데, 판상 아연분말이 혼합된 수성 컬러도료 조성물로 이루어지는 도막의 경도, 내구성, 방청성 및 내스크레치성을 향상시키고, 도막의 색상이 변질되는 것을 억제하는 역할을 한다.The water-soluble polyurethane mixture contains 45 to 100 parts by weight, 100 parts by weight of purified water, 110 to 130 parts by weight of pigment, 10 to 15 parts by weight of antifoaming agent, 1 to 3 parts by weight of dispersant, 80 to 100 parts by weight of coating film forming aid, preservative 0.5 to 1 parts by weight and 550 to 650 parts by weight of water-soluble polyurethane, which improves the hardness, durability, rust resistance and scratch resistance of the coating film made of an aqueous color coating composition mixed with plate-like zinc powder, and the color of the coating film is changed. It acts to suppress things.
상기 안료는 본 발명에 따른 판상 아연분말이 혼합된 수성 컬러도료 조성물에 생상을 부여하는 역할을 하며, 성분은 특별히 한정되지 않고 원하는 색상에 따라 다양한 종류가 사용될 수 있는데, 상기 안료의 함량이 110 중량부 미만일 경우에는 색상의 발현이 저하될 수 있으며, 상기 안료의 함량이 130 중량부를 초과하게는 경우에는 안료입자의 분산성이 저하되여 도막의 표면이 고르지 못하게 형성될 수 있다.The pigment serves to give a raw material to the aqueous color paint composition mixed with the plate-like zinc powder according to the present invention, the component is not particularly limited and may be used in various kinds according to the desired color, the content of the pigment 110 weight If the amount is less than the expression of the color may be lowered, if the content of the pigment exceeds 130 parts by weight, the dispersibility of the pigment particles may be lowered to form an uneven surface of the coating film.
또한, 상기 소포제는 본 발명에 따른 판상 아연분말이 혼합된 수성 컬러도료 조성물로 형성된 도막에 기포가 발생하는 것을 억제하는 역할을 하는데, 상기 성분은 특별히 한정되지 않고 도료에 사용될 수 있는 것이면 자유롭게 사용할 수 있다.In addition, the antifoaming agent serves to suppress the generation of bubbles in the coating film formed of the aqueous color paint composition mixed with the plate-like zinc powder according to the present invention, the component is not particularly limited and can be used freely as long as it can be used in the coating have.
상기 소포제의 함량이 10 중량부 미만이면 기포제거 효과가 미미하며, 상기 소포제의 함량이 15 중량부를 초과하게 되면 기포제거 효과는 크게 향상되지 않으면서 제조비용을 증가시키게 된다.When the content of the antifoaming agent is less than 10 parts by weight, the defoaming effect is insignificant. When the content of the antifoaming agent exceeds 15 parts by weight, the defoaming effect is not significantly improved to increase the manufacturing cost.
또한, 상기 분산제는 아연분말 입자의 분산성을 향상시키는 역할을 하는데, 아연분말의 분산성을 향상시키는 성분이면 특별히 한정되지 않고 어떠한 것이든 사용 가능하다.In addition, the dispersant plays a role of improving the dispersibility of the zinc powder particles, and any dispersant may be used as long as it is a component that improves the dispersibility of the zinc powder.
상기 분산제의 함량이 1 중량부 미만이면 아연분말의 분상성이 저하되면 도막의 평활성이 저하되며, 상기 분산제의 함량이 3 중량부를 초과하게 되면 분산성은 크게 향상되지 않으면서 제조비용을 증가시키게 된다.If the content of the dispersant is less than 1 part by weight, the powder coating property of the zinc powder is lowered, and the smoothness of the coating film is lowered. If the content of the dispersant is more than 3 parts by weight, the dispersibility is not greatly improved, thereby increasing the manufacturing cost.
상기 도막형성조제는 도막의 건조속도 및 도막형성 후 필름경도(Film hardness)를 향상시키는 역할을 하는데, 상기 도막형성조제의 함량이 80 중량부 미만이면 도막의 건조 속도 및 도막완성 후 필름경도가 저하됨과 동시에 색상발현 효과가 저하되며, 상기 도막형성조제의 함량이 100 중량부를 초과하게 되면 도막형성 후에 후 머드 크랙 현상 및 도막 과경도로 인해 충격(Impact)시 도막이 박리되는 현상이 발생할 수 있다. The coating film forming aid serves to improve the drying speed of the coating film and the film hardness after film formation. When the content of the film forming aid is less than 80 parts by weight, the drying speed of the coating film and the film hardness after completion of the coating film are decreased. At the same time, the color expression effect is lowered, and when the content of the coating film forming aid exceeds 100 parts by weight, the film may be peeled off during impact due to the post mud crack phenomenon and the coating film hardness.
상기 방부제는 본 발명에 따른 판상 아연분말이 혼합된 수성 컬러도료 조성물에 세균 및 박테리아와 같은 미생물이 증식하는 것을 억제하여 물성이 유지될 수 있도록 하는 역할을 하는데, 상기 방부제의 함량이 0.5 중량부 미만이면 상기의 효과가 미미하며, 상기 방부제의 함량이 1 중량부를 초과하는 경우에는 상기의 효과는 크게 향상되지 않으면서 제조비용을 증가시키게 된다.The preservative serves to prevent the growth of microorganisms such as bacteria and bacteria in the aqueous color paint composition mixed with the plate-like zinc powder according to the present invention so that the physical properties can be maintained, and the content of the preservative is less than 0.5 parts by weight. If the above effect is insignificant, and if the content of the preservative exceeds 1 part by weight, the above effect is not greatly improved to increase the manufacturing cost.
상기 수용성 폴리우레탄은 우수한 내수성 및 내충격성을 나타내기 때문에, 본 발명에 따른 판상 아연분말이 혼합된 수성 컬러도료 조성물로 형성된 도막의 경도, 내구성, 방청성, 내스크레치성 및 내충격성을 향상시키는 역할을 하는데, 상기의 효과 외에도 도막의 건조시간을 단축시키는 역할을 하다.Since the water-soluble polyurethane exhibits excellent water resistance and impact resistance, it plays a role of improving the hardness, durability, rust resistance, scratch resistance and impact resistance of the coating film formed of the aqueous color coating composition mixed with the plate-like zinc powder according to the present invention. In addition to the above effects, it serves to shorten the drying time of the coating film.
상기 수용성 폴리우레탄의 함량이 550 중량부 미만이면 상대적으로 정제수, 안료, 소포제, 분산제, 도막형성조제 및 방부제의 함량이 늘어나기 때문에, 수지의 엉킴현상이 발생할 수 있으며, 상기 수용성 폴리우레탄의 함량이 650 중량부를 초과하게 되면 상대적으로 정제수, 안료, 소포제, 분산제, 도막형성조제 및 방부제의 함량이 줄어들어 상기에 나열한 효과들이 미미해질 수 있다. If the content of the water-soluble polyurethane is less than 550 parts by weight, since the content of purified water, pigment, antifoaming agent, dispersant, coating film forming aid and preservative increases, entanglement of the resin may occur, and the content of the water-soluble polyurethane When the amount exceeds 650 parts by weight, the content of purified water, pigment, antifoaming agent, dispersant, coating agent, and preservative may be reduced, thereby minimizing the effects listed above.
상기 판상 아연분말은 30 내지 50 중량부가 함유되며, 물과 반응할 수도 있으며, 특히 산, 염기, 금속, 산화제, 환원제, 할로 탄소 화합물, 금속염, 할로겐, 가연성 물질, 아민 및 금속 산화물 등과는 쉽게 반응을 하므로 상기와 같은 화합물들과는 혼합을 하지않아야 하는 주의성이 요구되어지고 있다.The plate-like zinc powder may contain 30 to 50 parts by weight, and may react with water, and particularly easily react with acids, bases, metals, oxidizing agents, reducing agents, halo carbon compounds, metal salts, halogens, combustibles, amines, and metal oxides. Therefore, attention is required to not mix with the above compounds.
따라서, 본 발명에 따른 수성 컬러도료 조성물은 아연분말이 수성 액체 바인더의 물과 사전에 반응하여 변질되지 않도록 분리하여 포장함으로써, 철재 등의 금속재의 열적 산화나 부식 방지의 특성이 우수하여 500℃ 정도까지의 고온에서 내열성과 내식성이 우수한 것이 특징이다.Therefore, the aqueous color coating composition according to the present invention is separated and packaged so that the zinc powder does not deteriorate in response to the water of the aqueous liquid binder in advance, thereby excellent in the characteristics of thermal oxidation or corrosion protection of metal materials such as steel, and is about 500 ° C. It is characterized by excellent heat resistance and corrosion resistance at high temperatures up to.
또한, 본 발명에 사용되는 판상 아연분말은 방청효과를 나타내는 안료로서, 판상 아연분말의 변질을 방지하기 위하여 수성 액체 바인더 및 수용성 폴리우레탄 혼합물과는 분리하여 별도 포장을 해야 한다.In addition, the plate-like zinc powder used in the present invention is a pigment showing an rust-preventing effect, in order to prevent deterioration of the plate-like zinc powder should be separately packed from the aqueous liquid binder and the water-soluble polyurethane mixture.
상기 판상 아연분말의 혼합량이 30 중량부 미만인 경우에는 본 발명에 따른 수성 컬러도료 조성물을 금속의 표면에 형성되하는 경우에 코팅 피막층의 내부에 판상 아연분말의 함유량이 너무 적어 내식성이 피막층의 내식성이 저하될 수 있으며, 상기 판상 아연분말의 함량이 50 중량부를 초과하게 되면 수성 액체 바인더 및 수용성 우레탄 혼합물과 균질하게 혼합되지 않아 피막층의 접착력이 저하되기 때문에, 피막층이 금속으로부터 들뜨는 현상이 발생할 수 있다.When the mixing amount of the plate-like zinc powder is less than 30 parts by weight, when the aqueous color coating composition according to the present invention is formed on the surface of the metal, the content of the plate-like zinc powder is too small in the coating coating layer, so that the corrosion resistance of the coating layer is lowered. When the content of the plate-like zinc powder exceeds 50 parts by weight, the adhesion of the coating layer is lowered because it is not homogeneously mixed with the aqueous liquid binder and the water-soluble urethane mixture, so that the coating layer may be lifted from the metal.
이때, 상기 판상 아연분말은 아래 도 2에 나타낸 것처럼, 종래에 구상 아연분말과는 다르게 판상을 나타내며, 길이가 15 내지 20 마이크로미터이며, 폭이 3 내지 7 마이크로미터이고, 두께가 0.4 내지 0.6 마이크로미터인 것이 바람직한데, 상기와 같이 입자크기를 나타내는 판산 아연분말은 수성 액체 바인더 및 수용성 폴리우레탄 혼합물에 균질하게 분산되어 내식성의 특성을 향상시키는 효과를 나타낸다. At this time, the plate-like zinc powder, as shown in Figure 2 below, conventionally shows a plate-like, unlike spherical zinc powder, the length is 15 to 20 micrometers, the width is 3 to 7 micrometers, the thickness is 0.4 to 0.6 micrometers It is preferable that the meter be used, but the zinc phosphate powder exhibiting the particle size as described above is homogeneously dispersed in the aqueous liquid binder and the water-soluble polyurethane mixture, thereby improving the corrosion resistance property.
이하에서는, 본 발명에 따른 판상 아연분말이 혼합된 수성 컬러도료 조성물의 물성을 실시예를 들어 설명하기로 한다.Hereinafter, the physical properties of the aqueous color coating composition mixed with the plate-like zinc powder according to the present invention will be described with reference to Examples.
<실시예 1><Example 1>
수성 액체 바인더 100 중량부(정제수 100 중량부, 규산칼륨 735 중량부, 콜로이달 실리카 175 중량부, 디우탄검 2.5 중량부, 수용성 폴리아닐린 20 중량부 및 옥틸페놀 에톡시레이트 2.5 중량부를 혼합)에 수용성 폴리우레탄 혼합물(정제수 100 중량부, 안료 120 중량부, 소포제 12 중량부, 분산제 2 중량부, 도막형성조제 90 중량부, 방부제 0.7 중량부 및 수용성 폴리우레탄 600 중량부 혼합) 70 중량부 및 판상 아연분말(길이가 15 내지 20 마이크로미터이며, 폭이 3 내지 7 마이크로미터이고, 두께가 0.4 내지 0.6 마이크로미터) 40 중량부를 혼합하여 판상 아연분말이 혼합된 수성 컬러도료 조성물을 제조하였다.Water-soluble in 100 parts by weight of an aqueous liquid binder (100 parts by weight of purified water, 735 parts by weight of potassium silicate, 175 parts by weight of colloidal silica, 2.5 parts by weight of diutan gum, 20 parts by weight of water-soluble polyaniline and 2.5 parts by weight of octylphenol ethoxylate) 70 parts by weight of polyurethane mixture (100 parts by weight of purified water, 120 parts by weight of pigment, 12 parts by weight of antifoaming agent, 2 parts by weight of dispersant, 90 parts by weight of coating film forming aid, 0.7 parts by weight of preservative, and 600 parts by weight of water-soluble polyurethane) 70 parts by weight and plate zinc 40 parts by weight of powder (15 to 20 micrometers in length, 3 to 7 micrometers in width, 0.4 to 0.6 micrometers in thickness) were mixed to prepare an aqueous color coating composition in which plate-like zinc powder was mixed.
상기 실시예 1을 통해 제조된 판상 아연분말이 혼합된 수성 컬러도료 조성물의 내충격성을 측정하여 아래 도 3, 내염수성을 측정하여 아래 도 4, Cross cut & Erichsen 테스트를 실시하여 아래 도 5, 연필경도 테스트를 실시하여 아래 도 6 및 굽힘성 테스트를 실시하여 아래 도 7에 나타내었다.The impact resistance of the water-based color paint composition mixed with the plate-like zinc powder prepared in Example 1 was measured in Figure 3 below, the salt water resistance was measured below Figure 4, Cross cut & Erichsen test was carried out below Figure 5, pencil The hardness test was performed to perform the bending test shown in FIG. 6 and below.
{단, 내충격성 테스트는 강판에 상기 실시예 1을 통해 제조된 판상 아연분말이 혼합된 수성 컬러도료 조성물을 20㎛의 두께로 도포하여 시험편을 제조하고 ASTM D 2794를 통해 실시하였는데, 더욱 상세하게는 시험편에 1/2 직경, 무게 500g의 추를 50cm 높이에서 떨어뜨린 후 Tape를 부착하여 떼어내어 도막의 박리와 크랙의 정도를 확인하는 방법을 이용하였으며,{However, the impact resistance test was applied to the steel plate coating the aqueous color paint composition prepared in Example 1 mixed with a thickness of 20㎛ to prepare a test piece and carried out through ASTM D 2794, in more detail In the test piece, a weight of 1/2 diameter and a weight of 500 g were dropped at a height of 50 cm, and then a tape was attached to the test piece to check peeling and cracking of the coating film.
내염수성 테스트는 ASTM B 117을 통해 실시하였는데, 더욱 상세하게는 시험편을 35℃, 5% NaCl 용액을 분무하여 시험편의 평면과 X-cut 부위에 부식 및Blister발생을 확인하는 방법을 이용하였으며,The salt resistance test was conducted through ASTM B 117. More specifically, the test piece was sprayed with 35 ° C. and 5% NaCl solution to check corrosion and blister generation on the plane and X-cut area of the test piece.
Cross cut & Erichsen test(C.E.T)는 ASTM D 3359를 통해 실시하였는데, 더욱 상세하게는 1mm 간격으로 cross cut(칸 100개)을 만든 후 Erichsen을 이용하여 시험편의 cross cut 부위에 압력을 주어 도막의 박리를 관찰하는 방법을 이용하였으며,Cross cut & Erichsen test (CET) was carried out according to ASTM D 3359. More specifically, cross cuts (100 cells) were made at 1 mm intervals, and then pressure was applied to the cross cut area of the test piece using Erichsen to peel off the coating film. Was used to observe the method,
연필경도 시험은 ASTM D 3363을 통해 실시하였는데, 더욱 상세하게는 규정된 경도의 규격화된 연로 도막의 경도를 시험하는 방법을 이용하였으며,The pencil hardness test was carried out according to ASTM D 3363, more specifically, the method of testing the hardness of the standardized flue coating film of the specified hardness,
굽힘성 시험(T-Bend 시험)은 ASTM D 4145를 통해 실시하였는데, 더욱 상세하게는 바이스에 규격에 따른 보조시편을 시험편에 끼우고 바이스를 조여 180로 Bending시키고, Bending 부위를 Taping하여 박리나 크랙을 확인하는 방법을 이용하였다.}Bendability test (T-Bend test) was carried out through ASTM D 4145. More specifically, the auxiliary test specimen according to the standard is inserted into the test specimen and the vise is tightened to bend 180 degrees, and taping the bending area peels or cracks. It was used to check the method.}
아래 도 3 내지 7에 나타낸 것처럼, 본 발명의 실시예 1을 통해 제조된 판상 아연분말이 혼합된 수성 컬러도료 조성물로 이루어진 도막은 내충격성 시험에서 박리나 크랙이 없고, 내염수성 테스트에서는 700시간 이후에도 적청발생이나 Bliser 형상이 없으며, Cross cut & Erichsen test(C.E.T)에서는 박리된 사각형 격자가 없고 규격내에 분리기준 5B에 해당하며, 연필경도 테스트 결과 5H 내지 6H를 나타내었고, 굽힘성 테스트 결과 1T를 만족하였다.3 to 7 below, the coating film made of an aqueous color paint composition mixed with a plate-like zinc powder prepared in Example 1 of the present invention is free from peeling or cracking in impact resistance test, even after 700 hours in saline resistance test There is no red blue or blister shape, and in the Cross cut & Erichsen test (CET), there is no peeled rectangular grid and it corresponds to the separation standard 5B in the standard, and the pencil hardness test result shows 5H to 6H, and satisfies the bending test result 1T. It was.
본 발명은 판상 아연분말이 혼합된 수성 컬러도료 조성물에 관한 것으로, 더욱 상세하게는 수성 폴리우레탄 혼합물이 함유되어 건축용 기자재, 철재, 알루미늄 및 기타 금속 제품에 적용이 가능하며, 일반 도료의 베이스 성분이 탄소결합만으로 이루어진 것과는 다르게 강한 무기적 성향으로 인해 실록산 결합과 함께 수분산된 우레탄 입자가 연결 구성되어 결합각과 길이가 매우 크며 결합에너지가 높아 종래의 도료에 비해 경도 및 내구성이 향상된 도막을 제공하고, 자외선을 흡수하지 않고 도막의 열화가 억제되어 우수한 색상 보존효과를 나타내며, 우수한 방청성과 빠른 건조속도를 나타내는 판상 아연분말이 혼합된 수성 컬러도료 조성물에 이용 가능하다.The present invention relates to an aqueous color coating composition in which a plate-like zinc powder is mixed, and more particularly, an aqueous polyurethane mixture is contained and is applicable to construction equipment, steel, aluminum and other metal products. Due to the strong inorganic tendency, unlike the carbon bond alone, the urethane particles dispersed together with the siloxane bond are composed of a very large bonding angle and length, and the bonding energy is high, thus providing a coating with improved hardness and durability compared to conventional paints. Deterioration of the coating film is suppressed without absorbing ultraviolet rays, so that it shows an excellent color preservation effect, and can be used in an aqueous color coating composition in which a plate-like zinc powder exhibiting excellent rust resistance and fast drying speed is mixed.

Claims (5)

  1. 수성 액체 바인더, 수용성 폴리우레탄 혼합물 및 판상 아연분말을 코팅작업 직전에 균일하게 혼합하여 이루어지는 것을 특징으로 하는 판상 아연분말이 혼합된 수성 컬러도료 조성물.An aqueous color coating composition in which a plate-like zinc powder is mixed, wherein the aqueous liquid binder, the water-soluble polyurethane mixture, and the plate-like zinc powder are uniformly mixed immediately before coating.
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 판상 아연분말이 혼합된 수성 컬러도료 조성물은 수성 액체 바인더 100 중량부, 수용성 폴리우레탄 혼합물 45 내지 100 중량부 및 판상 아연분말 30 내지 50 중량부로 이루어지는 것을 특징으로 하는 판상 아연분말이 혼합된 수성 컬러도료 조성물.The aqueous color paint composition in which the plate-like zinc powder is mixed is an aqueous color in which the plate-like zinc powder is mixed, comprising 100 parts by weight of an aqueous liquid binder, 45 to 100 parts by weight of a water-soluble polyurethane mixture, and 30 to 50 parts by weight of a plate-like zinc powder. Paint compositions.
  3. 청구항 1 또는 2에 있어서,The method according to claim 1 or 2,
    상기 수성 액체 바인더는 정제수 100 중량부, 규산칼륨 720 내지 750 중량부, 콜로이달 실리카 150 내지 200 중량부, 디우탄검 2 내지 3 중량부, 수용성 폴리아닐린 10 내지 30 중량부 및 옥틸페놀 에톡시레이트 2 내지 3 중량부로 이루어지는 것을 특징으로 하는 판상 아연분말이 혼합된 수성 컬러도료 조성물.The aqueous liquid binder is 100 parts by weight of purified water, 720 to 750 parts by weight of potassium silicate, 150 to 200 parts by weight of colloidal silica, 2 to 3 parts by weight of diutan gum, 10 to 30 parts by weight of water-soluble polyaniline and octylphenol ethoxylate 2 Aqueous color paint composition mixed with a plate-like zinc powder, characterized in that consisting of 3 to 3 parts by weight.
  4. 청구항 1 또는 2에 있어서,The method according to claim 1 or 2,
    상기 수용성 폴리우레탄 혼합물은 정제수 100 중량부, 안료 110 내지 130 중량부, 소포제 10 내지 15 중량부, 분산제 1 내지 3 중량부, 도막형성조제 80 내지 100 중량부, 방부제 0.5 내지 1 중량부 및 수용성 폴리우레탄 550 내지 650 중량부로 이루어지는 것을 특징으로 하는 판상 아연분말이 혼합된 수성 컬러도료 조성물.The water-soluble polyurethane mixture is 100 parts by weight of purified water, 110 to 130 parts by weight of pigment, 10 to 15 parts by weight of antifoaming agent, 1 to 3 parts by weight of dispersant, 80 to 100 parts by weight of coating film forming aid, 0.5 to 1 parts by weight of preservative and water-soluble poly Aqueous color paint composition in which a plate-like zinc powder is mixed, comprising urethane 550 to 650 parts by weight.
  5. 청구항 1 또는 2에 있어서,The method according to claim 1 or 2,
    상기 판상 아연분말은 길이가 15 내지 20 마이크로미터이며, 폭이 3 내지 7 마이크로미터이고, 두께가 0.4 내지 0.6 마이크로미터인 것을 특징으로 하는 판상 아연분말이 혼합된 수성 컬러도료 조성물.The plate-like zinc powder has a length of 15 to 20 micrometers, a width of 3 to 7 micrometers, a thickness of 0.4 to 0.6 micrometers, the aqueous color paint composition mixed with the plate-like zinc powder.
PCT/KR2015/005033 2015-04-28 2015-05-20 Aqueous colored pigment composition mixed with plate-like zinc powder WO2016175367A1 (en)

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