KR102655007B1 - 2-component type water-soluble polyurethane paint and eco-friendly complex waterproofing coating method using the same - Google Patents
2-component type water-soluble polyurethane paint and eco-friendly complex waterproofing coating method using the same Download PDFInfo
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- KR102655007B1 KR102655007B1 KR1020230133192A KR20230133192A KR102655007B1 KR 102655007 B1 KR102655007 B1 KR 102655007B1 KR 1020230133192 A KR1020230133192 A KR 1020230133192A KR 20230133192 A KR20230133192 A KR 20230133192A KR 102655007 B1 KR102655007 B1 KR 102655007B1
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- water
- weight
- soluble
- eco
- coating method
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- 238000004078 waterproofing Methods 0.000 title claims abstract description 77
- 239000003973 paint Substances 0.000 title claims abstract description 71
- 238000000576 coating method Methods 0.000 title claims abstract description 66
- 239000004814 polyurethane Substances 0.000 title claims abstract description 37
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000004567 concrete Substances 0.000 claims abstract description 54
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 44
- 239000000839 emulsion Substances 0.000 claims abstract description 37
- 229920000800 acrylic rubber Polymers 0.000 claims abstract description 35
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 35
- 239000002131 composite material Substances 0.000 claims abstract description 23
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 51
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 28
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 27
- -1 ACRYL Chemical class 0.000 claims description 25
- 239000004408 titanium dioxide Substances 0.000 claims description 24
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 15
- 239000012948 isocyanate Substances 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 9
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 9
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 9
- 244000043261 Hevea brasiliensis Species 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 8
- 229920003052 natural elastomer Polymers 0.000 claims description 8
- 229920001194 natural rubber Polymers 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- PUQZBGPEFQZKIG-UHFFFAOYSA-N 2-methylidenebutanoic acid;methyl 2-methylprop-2-enoate Chemical compound CCC(=C)C(O)=O.COC(=O)C(C)=C PUQZBGPEFQZKIG-UHFFFAOYSA-N 0.000 claims description 5
- 239000011398 Portland cement Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical class C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 40
- 238000009413 insulation Methods 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003960 organic solvent Substances 0.000 abstract description 7
- 239000011229 interlayer Substances 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 41
- 239000010410 layer Substances 0.000 description 23
- 239000002585 base Substances 0.000 description 16
- 238000012360 testing method Methods 0.000 description 16
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000000049 pigment Substances 0.000 description 9
- 238000006386 neutralization reaction Methods 0.000 description 8
- 238000010422 painting Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000006866 deterioration Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000004606 Fillers/Extenders Substances 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
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- 239000002518 antifoaming agent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
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- 239000002245 particle Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
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- 150000003839 salts Chemical class 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- ZXHZWRZAWJVPIC-UHFFFAOYSA-N 1,2-diisocyanatonaphthalene Chemical compound C1=CC=CC2=C(N=C=O)C(N=C=O)=CC=C21 ZXHZWRZAWJVPIC-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000012662 bulk polymerization Methods 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- 239000012463 white pigment Substances 0.000 description 2
- VKQFHSYARZFUMC-UHFFFAOYSA-N 2-methylbut-2-enoic acid 2-methylidenebutanoic acid Chemical compound CCC(=C)C(O)=O.CC=C(C)C(O)=O VKQFHSYARZFUMC-UHFFFAOYSA-N 0.000 description 1
- GNZFHCIZFRLLLQ-UHFFFAOYSA-N 2-methylidenebutanoic acid Chemical compound CCC(=C)C(O)=O.CCC(=C)C(O)=O GNZFHCIZFRLLLQ-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 229920005822 acrylic binder Polymers 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 229940102552 disteardimonium hectorite Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012767 functional filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
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- 239000002689 soil Substances 0.000 description 1
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- 230000001954 sterilising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 239000004846 water-soluble epoxy resin Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Classifications
-
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
- C08G18/6225—Polymers of esters of acrylic or methacrylic acid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- 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
- C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
- C09D1/08—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
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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
- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
- C09D133/12—Homopolymers or copolymers of methyl methacrylate
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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
- 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
- C09D5/022—Emulsions, e.g. oil in water
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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
- 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
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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
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
본 발명은 2액형 수용성 폴리우레탄 도료 및 이를 이용한 친환경 복합방수 도장방법에 관한 것으로, 상기 친환경 복합방수 도장방법은 유기용제를 전혀 사용하지 않는 도장방식으로서, 콘크리트 구조물의 표면에 접착성이 우수한 아크릴 에멀젼 프라이머를 도포한 후 수성 탄성무기질 도막방수제를 도포하여 콘크리트 표면의 수밀성을 증가시키면서 도막의 강도를 강화시킬 수 있으며, 또한 상기 도막방수제와의 친화성이 우수한 수용성 아크릴 고무계 중도도료를 도포하여 층간 접착력과 방수성을 강화시킨 다음, 그 상부에는 내수성, 은폐력, 부착력 및 내마모성이 우수한 2액형 수용성 폴리우레탄 도료를 단계적으로 도포함으로써 혹한, 혹서기에도 단열성이 탁월하고 방수성능을 장기간 보장할 수 있는 효과가 있다.The present invention relates to a two-component water-soluble polyurethane paint and an eco-friendly composite waterproofing coating method using the same. The eco-friendly composite waterproofing coating method is a coating method that does not use any organic solvents and uses an acrylic emulsion with excellent adhesion to the surface of concrete structures. After applying the primer, a water-based elastic inorganic coating waterproofing agent can be applied to increase the water tightness of the concrete surface and strengthen the strength of the coating film. Additionally, a water-soluble acrylic rubber-based intermediate coating with excellent compatibility with the coating waterproofing agent is applied to improve interlayer adhesion and After strengthening the waterproofing, a two-component water-soluble polyurethane paint with excellent water resistance, hiding power, adhesion, and abrasion resistance is applied step by step to the upper part, which has the effect of providing excellent insulation even in extreme cold and hot weather and ensuring long-term waterproofing performance.
Description
본 발명은 2액형 수용성 폴리우레탄 도료 및 이를 이용한 친환경 복합방수 도장방법에 관한 것으로, 더욱 상세하게는 건물 옥상 등 햇빛에 노출된 콘크리트 구조물의 표면에 접착성이 우수한 아크릴 에멀젼 프라이머를 도포한 후 수성 탄성무기질 도막방수제를 도포하여 수밀성과 도막 강도를 증진시킨 다음, 상기 탄성무기질 도막과의 친화성이 우수한 수용성 아크릴 고무계 중도도료를 도포하여 방수성을 강화시키며, 그 상부에는 내수성, 은폐력, 부착력 및 내마모성이 탁월한 2액형 수용성 폴리우레탄 도료를 이용한 친환경 복합방수 도장방법에 관한 것이다.The present invention relates to a two-component water-soluble polyurethane paint and an eco-friendly composite waterproofing coating method using the same. More specifically, the present invention relates to an acrylic emulsion primer with excellent adhesion on the surface of a concrete structure exposed to sunlight, such as a building rooftop, and then applying a water-based elastic primer. Watertightness and film strength are improved by applying an inorganic film waterproofing agent, and then waterproofing is strengthened by applying a water-soluble acrylic rubber-based intermediate coating with excellent affinity with the elastic inorganic film, and the upper part has excellent water resistance, hiding power, adhesion and abrasion resistance. This relates to an eco-friendly composite waterproofing coating method using two-component water-soluble polyurethane paint.
일반적으로, 콘크리트로 시공되는 건물은 매년 반복되는 하절기와 동절기를 거치면서 온도 변화에 따른 침투수의 동결이나 부식 또는 대기나 햇빛에 의한 변질 등이 발생하기 때문에 건물 등의 콘크리트 구조물은 외부로부터 노출된 습기와 열 차단을 위한 방수공사가 필수적이다.In general, buildings constructed with concrete go through repeated summer and winter seasons every year, and freezing or corrosion of permeating water due to temperature changes or deterioration due to air or sunlight occur, so concrete structures such as buildings are exposed to the outside. Waterproofing work is essential to block moisture and heat.
상기와 같은 콘크리트 구조물은 장기간에 걸쳐 산성비, 대기오염, 자외선, CO2가스, 동절기 염화칼슘의 사용 등 외부 환경에 의한 열화 및 동결융해로 인해 내구성이 저하되는 가장 해로운 원인이 콘크리트의 중성화인데, 콘크리트 중성화는 표면에 미세 공극과 균열을 일으켜 물이나 공기가 침입함에 따라 내부 철근이 부식되어 녹이 발생하고, 이에 균열이 더욱 확산되면서 콘크리트의 열화를 촉진시켜 콘크리트 구조물의 수명을 저하시킨다.The most harmful cause of the durability of concrete structures as described above is reduced due to deterioration and freezing and thawing caused by external environments such as acid rain, air pollution, ultraviolet rays, CO 2 gas, and the use of calcium chloride in the winter over a long period of time. Neutralization of concrete is the most harmful cause. It causes microscopic pores and cracks on the surface, causing the internal reinforcing bars to corrode and rust as water or air enters. This further spreads the cracks, accelerating the deterioration of the concrete and reducing the lifespan of the concrete structure.
이러한 현상은 콘크리트 구조물이 공기와 수분에 노출됨에 의해 내부의 pH가 12 ~ 13, 대략 11 이상에서는 철근의 표면에 부동태 피막이 형성되어 산소가 존재하여도 잘 녹슬지 않지만, 중성화로 인해 pH가 11 이하, 대략 8.5 ~ 10 이하로 낮아지면 철근에 녹이 발생하고 이러한 부식에 의해 철근은 약 2.5배까지 체적이 팽창하는데, 이 팽창압력이 콘크리트의 응력을 넘어서면 균열이 발생하고 균열부로 물과 이산화탄소가 침투하여 결국 열화(노후화)가 급격히 진행되는 것이다.This phenomenon occurs when the internal pH of the concrete structure is 12 to 13 due to exposure to air and moisture. When the internal pH is approximately 11 or higher, a passive film is formed on the surface of the rebar, which prevents it from rusting even in the presence of oxygen. However, due to neutralization, when the pH is below 11, When the temperature drops below about 8.5 to 10, rust occurs in the reinforcing bars, and this corrosion causes the reinforcing bars to expand by about 2.5 times in volume. When this expansion pressure exceeds the stress of the concrete, cracks occur, and water and carbon dioxide penetrate into the cracks. Ultimately, deterioration (aging) progresses rapidly.
이와 같은 콘크리트 구조물의 부식 및 중성화를 방지하기 위해서는 콘크리트 구조물의 표면에 도료를 도포하여 도막을 형성함으로써 공기, 수분 등의 침투를 방지하게 된다. 그러나 종래의 도료 조성물은 유기용제를 사용하여 인체 내에 유기물이 흡수됨으로써 작업자 또는 사용자의 건강을 위협하는 요소로 작용하며, 또한 유기용제는 대부분 휘발성이어서 대기 중에 유해물질이 발산됨에 따른 문제점이 심각한 실정이므로, 콘크리트 구조물의 내후성 및 내수성을 향상시킬 수 있는 친환경 도료 및 도장방법에 대한 연구가 지속적으로 이루어지고 있다.In order to prevent corrosion and neutralization of such concrete structures, paint is applied to the surface of the concrete structure to form a film to prevent penetration of air, moisture, etc. However, conventional paint compositions use organic solvents, which cause organic substances to be absorbed into the human body, which poses a threat to the health of workers or users. In addition, most organic solvents are volatile, so there is a serious problem of releasing harmful substances into the air. , Research is continuously being conducted on eco-friendly paints and coating methods that can improve the weather resistance and water resistance of concrete structures.
종래 우레탄 도막방수공법을 예로 들면, 옥상 및 베란다/복도의 표면 처리된 콘크리트 바닥에 BGE, DGE 등과 같은 용제가 함유된 에폭시 수지모르타르로 균열을 보수한 다음, 자일렌, 톨루엔 등과 같은 유기용제가 다량 함유된 폴리우레탄계 하도(primer)를 50㎛ 두께로 도포하고, 자일렌, 톨루엔 등이 함유된 용제형 폴리우레탄계 중도(middle coat)를 2~3㎜ 두께로 도포한 다음, 자일렌, 톨루엔 등이 함유된 아크릴-우레탄계 상도(top coat)를 70~80㎛ 두께로 마감처리 하는 공법이 주로 사용되고 있다.Taking the conventional urethane film waterproofing method as an example, cracks are repaired with epoxy resin mortar containing solvents such as BGE and DGE on the surface-treated concrete floor of the rooftop and veranda/corridor, and then a large amount of organic solvents such as xylene and toluene are added. The polyurethane-based primer contained therein is applied to a thickness of 50㎛, and a solvent-based polyurethane-based middle coat containing xylene, toluene, etc. is applied to a thickness of 2~3mm, and then xylene, toluene, etc. are applied to a thickness of 2~3mm. A method of finishing the contained acrylic-urethane top coat to a thickness of 70 to 80㎛ is mainly used.
그리고 현대에는 실내의 쾌적한 환경을 유지하기 위해 건물 내부에 냉난방기를 이용하여 일정한 실내온도를 유지하도록 하고 있으나, 냉난방기만으로 건축물 내부의 실내온도를 조절하는 것은 전력 에너지의 손실이 클 수밖에 없다. 이에 따라 건물 옥상이나 외벽을 차열도료 또는 단열도료를 도포하여 건물의 온도를 유지하고 에너지 손실을 방지하는 방법이 많이 적용되고 있으며, 상기 차열도료는 태양광선 중 적외선을 반사해 표면의 온도상승을 억제하고 내부로 열이 전달되는 것을 방지하는 데 비해 낮은 열전도율을 이용하는 단열도료와 혼동되기도 하지만, 그 기능에 따라 차열성 및 단열성을 복합적으로 발휘할 수 있는 도료가 사용되기도 한다.And in modern times, in order to maintain a comfortable indoor environment, air conditioners are used inside buildings to maintain a constant indoor temperature. However, controlling the indoor temperature inside a building with only air conditioners inevitably results in a large loss of electric energy. Accordingly, many methods are being applied to maintain the temperature of the building and prevent energy loss by applying heat-insulating paint or insulating paint to the rooftop or exterior walls of the building. The heat-insulating paint reflects infrared rays from the sun's rays to suppress the rise in surface temperature. It is often confused with insulating paints that use low thermal conductivity to prevent heat transfer to the inside, but depending on their function, paints that can exhibit both heat shielding and insulating properties are also used.
상기와 같은 콘크리트 구조물에 대한 방수성과 내후성, 또는 차열 및 단열성을 향상시키기 위한 도장방법으로서, 대한민국 특허 제10-1740239호에서는 수용성 폴리우레아수지, 수용성 아크릴수지, 수용성 에폭시수지, 수성 EVA수지 중에서 1종 이상의 수계 폴리머 수지 100중량부에 대해 알카리성 수용액 25 내지 75중량부, 체질안료 25 내지 75중량부, 안료 5 내지 30중량부, 물 20 내지 75중량부, 습윤분산제 2 내지 5중량부, 소포제 2 내지 5중량부, 소포제에 의해 유출되는 이산화탄소를 고정시키는 수산화리튬 5 내지 30중량부, 일정시간 경과 후 증점효과가 발현되는 디스테아디모늄헥토라이트(Disteardimonium Hectorite) 2 내지 5중량부를 포함하는 하도; 유무기 복합수지 100중량부에 대해 수용성 폴리머수지 25 내지 75중량부, 체질안료 25 내지 75중량부, 안료 5 내지 30중량부, 물 20 내지 75중량부, 습윤분산제 2 내지 5중량부, 소포제 2 내지 5중량부, 일정 시간 경과 후 증점효과가 발현되는 디스테아디모늄헥토라이트(Disteardimonium Hectorite) 2 내지 5중량부를 포함하는 상도;를 포함하는 것을 특징으로 하는 유ㆍ무기 복합수지를 이용하여 중성화 및 염해방지 기능이 향상된 콘크리트 구조물 보호용 코팅제를 개시하고 있다.As a coating method for improving the waterproofing and weathering resistance, or the insulation and insulation properties of concrete structures as described above, Korean Patent No. 10-1740239 uses one type of water-soluble polyurea resin, water-soluble acrylic resin, water-soluble epoxy resin, and water-based EVA resin. Based on 100 parts by weight of the above water-based polymer resin, 25 to 75 parts by weight of alkaline aqueous solution, 25 to 75 parts by weight of extender pigment, 5 to 30 parts by weight of pigment, 20 to 75 parts by weight of water, 2 to 5 parts by weight of wetting and dispersing agent, and 2 to 2 parts by weight of antifoaming agent. An undercoat comprising 5 parts by weight, 5 to 30 parts by weight of lithium hydroxide, which fixes carbon dioxide released by the antifoaming agent, and 2 to 5 parts by weight of Disteardimonium Hectorite, which exhibits a thickening effect after a certain period of time; Based on 100 parts by weight of organic-inorganic composite resin, 25 to 75 parts by weight of water-soluble polymer resin, 25 to 75 parts by weight of extender pigment, 5 to 30 parts by weight of pigment, 20 to 75 parts by weight of water, 2 to 5 parts by weight of wetting and dispersing agent, 2 parts by weight of antifoaming agent. neutralization and A coating agent for protecting concrete structures with improved salt damage prevention is being disclosed.
또한, 동 특허 제10-1925220호는 (1)시공하고자 하는 시공 표면을 정리하는 제1단계; (2)상기 시공 표면에 메틸메타크릴레이트(MMA)수지, 과산화물계 경화제 및 첨가제를 포함하는 도포액을 1차 도포하고 이를 반응시켜 하도 도포하는 제2단계; (3)상기 하도 도포한 후 그 위에 단위면적당 중량이 10~1000g/m2, 인장력이 10~1000N/50mm, 두께가 0.05~1.0mm인 합성수지 티슈를 포설하는 제3단계; (4)상기 합성수지 티슈 상에 아크릴계 수지, 고무칩, 에어로겔 및 분체성분을 포함하는 1차 표면보호재를 도포하고 경화시키는 제4단계; 및 (5)상기 1차 표면보호제가 도포된 위에 메틸메타크릴레이트(MMA)수지를 포함하는 액상성분 100중량부와 무기분말성분 30~300중량부를 포함하는 2차 표면보호재를 상도 도포하고 경화시키는 제5단계;를 포함하며, 상기 (3)의 합성수지 티슈는 폴리아미드 또는 폴리에스테르계 수지의 박막필름을 사용하는 것을 특징으로 하고, 상기 (4)의 분체성분은 입경이 1~100㎛인 운모 5~40중량부, 석분 10~50중량부 및 산화티탄 1~10중량부를 혼합한 것을 사용하는 것을 특징으로 하는 MMA수지를 포함하는 방수, 방식, 중성화 방지용 바닥재 시공방법에 관한 것이다.In addition, Patent No. 10-1925220 includes (1) the first step of preparing the construction surface to be constructed; (2) A second step of first applying a coating solution containing methyl methacrylate (MMA) resin, a peroxide-based hardener and additives to the construction surface and reacting it to apply a base coat; (3) A third step of laying synthetic resin tissue having a weight per unit area of 10-1000 g/m 2 , a tensile force of 10-1000 N/50 mm, and a thickness of 0.05-1.0 mm on top of the base coat; (4) a fourth step of applying and curing a primary surface protection material containing acrylic resin, rubber chips, airgel, and powder components on the synthetic resin tissue; and (5) topcoating and curing a secondary surface protective material containing 100 parts by weight of a liquid component containing methyl methacrylate (MMA) resin and 30 to 300 parts by weight of an inorganic powder component on the coated surface of the primary surface protective agent. A fifth step; wherein the synthetic resin tissue of (3) above is characterized by using a thin film of polyamide or polyester resin, and the powder component of (4) is mica with a particle size of 1 to 100㎛. It relates to a method of constructing a flooring material for waterproofing, anticorrosion, and neutralization containing MMA resin, which is characterized by using a mixture of 5 to 40 parts by weight, 10 to 50 parts by weight of stone dust, and 1 to 10 parts by weight of titanium oxide.
또한, 동 특허 제10-2200896호에 의한 수용성 아크릴 우레탄 방수제를 이용한 중성화방지 복합시트 시공방법은, (a)방수 시공하려는 건물 옥상이나 지붕의 바닥체와 벽체의 표면과 코너 부분에 고착된 이물질을 제거하고 균열이나 패인 부분을 보수하는 보수단계; (b)상기 바닥체와 벽체의 표면에 수용성 아크릴 우레탄 방수제에 일정량의 물을 혼합하여 도장용 붓 또는 롤러를 이용하여 0.3~0.4Kg/m2로 도포하는 하도방수층 도포단계; (c)상기 도포된 하도방수층이 완전 건조되면, 복합시트와 수용성 아크릴 우레탄 방수제를 이용하여 바닥체와 벽체 사이의 코너 부분과 벽체에 시공하는 보강단계; (d)상기 보강단계가 완료된 후 보강 부분이 완전 건조되면, 도장용 붓 또는 롤러를 이용하여 수용성 아크릴 우레탄 방수제를 바닥체에 도포하여 1차 중도방수층 도포단계; (e)상기 도포된 1차 중도방수층 위에 복합시트를 일정 방향으로 시공하는 복합시트 접착단계; (f)수용성 아크릴 우레탄 방수제 20Kg에 점도를 조절하기 위하여 물 10~20L을 혼합하여 희석된 수용성 아크릴 우레탄 방수제를 상기 시공된 복합시트 위에 0.4~0.6Kg/㎡로 도포하여 수용성 아크릴 우레탄 방수제가 복합시트 내부로 함침되도록 하는 함침방수층 도포단계; (g)상기 도포된 함침방수층이 완전 건조되면, 그 위에 도장용 붓 또는 롤러를 이용하여 수용성 아크릴 우레탄 방수제를 0.4~0.6Kg/㎡로 도포하는 2차 중도방수층 도포단계; (h)상기 도포된 2차 중도방수층이 완전 건조되면, 그 위에 도장용 붓 또는 롤러를 이용하여 수용성 아크릴 우레탄 방수제를 0.4~0.6Kg/㎡로 도포하는 3차 중도방수층 도포단계; (i)상기 도포된 3차 중도방수층이 완전 건조되면, 그 위에 수용성 아크릴 우레탄 방수제 20Kg에 아크릴을 10~20Kg 비율로 혼합된 수용성 아크릴 우레탄 방수제를 도장용 붓 또는 롤러를 이용하여 0.4~0.6Kg/㎡로 도포하는 상도코팅층 도포단계를 포함하고 있다.In addition, the method of constructing an anti-neutralization composite sheet using a water-soluble acrylic urethane waterproofing agent according to Patent No. 10-2200896 is (a) removing foreign substances adhered to the surface and corners of the floor and walls of the roof or roof of the building to be waterproofed; Repair stage of removing and repairing cracks or dents; (b) a base waterproofing layer application step of mixing a certain amount of water with a water-soluble acrylic urethane waterproofing agent and applying it at 0.3 to 0.4 Kg/m 2 using a painting brush or roller on the surfaces of the floor and walls; (c) When the applied base waterproofing layer is completely dried, a reinforcement step of constructing the wall and the corner between the floor and the wall using a composite sheet and a water-soluble acrylic urethane waterproofing agent; (d) When the reinforcement part is completely dried after the reinforcement step is completed, a water-soluble acrylic urethane waterproofing agent is applied to the floor using a painting brush or roller to apply a first intermediate waterproofing layer; (e) a composite sheet adhesion step of constructing a composite sheet in a certain direction on the applied primary intermediate waterproofing layer; (f) In order to control the viscosity, 20 kg of water-soluble acrylic urethane waterproofing agent is mixed with 10 to 20 L of water and the diluted water-soluble acrylic urethane waterproofing agent is applied at 0.4 to 0.6 Kg/㎡ on the above-constructed composite sheet so that the water-soluble acrylic urethane waterproofing agent is applied to the composite sheet. A step of applying an impregnated waterproof layer to be impregnated into the interior; (g) When the applied impregnated waterproofing layer is completely dried, a second intermediate waterproofing layer application step of applying a water-soluble acrylic urethane waterproofing agent at 0.4 to 0.6 Kg/㎡ using a painting brush or roller; (h) When the applied second intermediate waterproofing layer is completely dried, a third intermediate waterproofing layer application step of applying a water-soluble acrylic urethane waterproofing agent at 0.4 to 0.6Kg/㎡ using a painting brush or roller; (i) When the applied third intermediate waterproofing layer is completely dried, apply 0.4 to 0.6 kg/kg of water-soluble acrylic urethane waterproofing agent mixed with 20 kg of water-soluble acrylic urethane waterproofing agent and 10 to 20 kg of acrylic on top of it using a painting brush or roller. It includes the step of applying a top coating layer applied in ㎡.
또한, 동 특허 제10-2207388호는 지붕에 하도층, 단열층, 차열층 및 투명성 자외선 보호층으로 구성된 방수 도장을 형성하는 차열성 방수 도장방법으로서, (1)지붕용 기재층을 하도처리하거나 방수성 코팅 처리하여 하도층을 준비하는 단계, (2)상기 하도층 위에 중공안료 0.1∼2중량%, 백색안료 1∼5중량%, 체질안료 20∼40중량%, 탄성 바인더 수지 40∼60중량%, 희석제 1∼5중량%, 첨가제 5∼15중량% 및 잔여량의 물을 포함하는 수성 단열 페인트를 도포 및 건조하여 단열층을 형성시키는 단계, (3)상기 단열층 위에 알루미늄 금속 분말을 포함하는 차열안료 0.1∼2중량%, 백색안료 20∼40중량%, 아크릴계 바인더 수지 40∼60중량%, 희석제 1∼5중량%, 첨가제 5∼15중량% 및 잔여량의 물을 포함하는 수성 차열 페인트를 도포 및 건조하여 차열층을 형성시키는 단계, (4)상기 차열층 위에 투명성 자외선 보호층을 더욱 도포하는 단계로 구성된다.In addition, Patent No. 10-2207388 is a heat-insulating waterproof coating method for forming a waterproof coating composed of an undercoating layer, an insulating layer, an insulating layer, and a transparent ultraviolet ray protection layer on a roof. Preparing an undercoat layer by coating, (2) 0.1 to 2% by weight of hollow pigment, 1 to 5% by weight of white pigment, 20 to 40% by weight of extender pigment, and 40 to 60% by weight of elastic binder resin on the undercoat layer, forming an insulating layer by applying and drying a water-based insulating paint containing 1 to 5% by weight of a diluent, 5 to 15% by weight of an additive, and a residual amount of water; (3) applying 0.1 to 0.1% of a heat insulating pigment containing aluminum metal powder on the insulating layer; Apply and dry a water-based heat insulating paint containing 2% by weight, 20 to 40% by weight of white pigment, 40 to 60% by weight of acrylic binder resin, 1 to 5% by weight of diluent, 5 to 15% by weight of additives, and the remaining amount of water. It consists of forming a heat layer, and (4) further applying a transparent ultraviolet ray protective layer on the heat shield layer.
한편, 본 발명은 본 출원인에 의해 개발된 특허 제10-2570896호(친환경 아크릴 에멀젼을 이용한 에너지 절감 방수도장방법)에서 적용되는 상도도료를 2액형 수용성 폴리우레탄 도료로 적용한 친환경 방수 도장시스템으로서, 기존의 탄성무기질 도막 위에 친화성이 우수한 수용성 아크릴 고무계 중도도료를 도포하거나 섬유시트(fiber sheet)를 부착하여 방수성을 강화시킨 다음, 그 상부에는 내수성, 은폐력, 부착력 및 내마모성이 탁월한 2액형 수용성 폴리우레탄 도료를 단계적으로 도포하는 친환경 복합방수 도장방법을 개발하여 본 발명을 완성하였다.Meanwhile, the present invention is an eco-friendly waterproof coating system in which the top coat applied in Patent No. 10-2570896 (Energy-saving waterproof coating method using eco-friendly acrylic emulsion) developed by the present applicant is a two-component water-soluble polyurethane paint. Water-soluble acrylic rubber-based coating with excellent affinity is applied on the elastic inorganic coating film or a fiber sheet is attached to enhance waterproofing, and then a two-component water-soluble polyurethane paint with excellent water resistance, hiding power, adhesion and abrasion resistance is applied on top. The present invention was completed by developing an eco-friendly composite waterproofing coating method that applies step by step.
본 발명의 목적은 콘크리트 구조물의 표면에 접착성이 우수한 아크릴 에멀젼 프라이머를 도포하고 수성 탄성무기질 도막방수제를 도포하여 콘크리트 표면의 수밀성과 도막 강도를 증진시키며, 여기에 상기 탄성무기질 도막과의 친화성이 우수한 수용성 아크릴 고무계 중도도료를 도포하여 층간 접착력과 방수성을 강화시킨 다음, 그 상부에는 내수성, 은폐력, 부착력 및 내마모성이 우수한 2액형 수용성 폴리우레탄 도료를 단계적으로 도포함으로써 혹한, 혹서기에도 단열성과 방수성능을 확실하게 보장하는 친환경 복합방수 도장방법을 제공하는 것이다.The purpose of the present invention is to improve the watertightness and film strength of the concrete surface by applying an acrylic emulsion primer with excellent adhesion to the surface of a concrete structure and applying a water-based elastic inorganic film waterproofing agent, and to improve the water tightness and film strength of the concrete surface, and to improve the compatibility with the elastic inorganic film. An excellent water-soluble acrylic rubber-based intermediate coating is applied to strengthen inter-layer adhesion and waterproofing, and then a two-component water-soluble polyurethane paint with excellent water resistance, hiding power, adhesion, and abrasion resistance is applied in stages on top to ensure insulation and waterproofing performance even in extreme cold and hot weather. The goal is to provide an eco-friendly composite waterproofing coating method that reliably guarantees.
본 발명에 의한 2액형 수용성 폴리우레탄 도료는, 물 46 ~ 66중량%, 메타크릴산 메틸-에틸 아크릴산 공중합체(METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER) 25 ~ 36중량%, 이산화티타늄(TITANIUM DIOXIDE) 5 ~ 25중량%의 비율로 포함하는 주제 20 ~ 80중량부; 및 지방족 이소시아네이트인 헥사메틸렌 디이소시아네이트(HEXAMETHYLENE DIISOCYANATE)를 포함하는 경화제 20 ~ 80중량부;로 구성되며, 고형분 함량 40 ~ 60w%, 비중 1.36 ~ 1.42, 점도 20 ~ 25Poise(25℃) 범위로 형성된 것을 특징으로 한다.The two-component water-soluble polyurethane paint according to the present invention contains 46 to 66% by weight of water, 25 to 36% by weight of methyl methacrylate-ethyl acrylic acid copolymer (METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER), and 5 to 5% of titanium dioxide. 20 to 80 parts by weight of the subject matter comprising a proportion of 25% by weight; and 20 to 80 parts by weight of a curing agent containing hexamethylene diisocyanate, an aliphatic isocyanate, and is formed with a solid content of 40 to 60 w%, a specific gravity of 1.36 to 1.42, and a viscosity of 20 to 25 Poise (25°C). It is characterized by
상기 2액형 수용성 폴리우레탄 도료를 이용한 친환경 복합방수 도장방법은, 콘크리트 바탕면의 들뜬 부위 및 요철이 있는 부위를 평평하게 정리하는 콘크리트 바탕면 전처리 단계(S10); 상기 정리된 콘크리트 바탕면에 수용성 아크릴 에멀젼 프라이머를 30 ~ 70㎛ 두께로 도포하는 아크릴 에멀젼 하도도료 도포단계(S20); 상기 경화된 수용성 아크릴 에멀젼 프라이머 위에 아크릴 에멀젼(ACRYL EMULSION) 60 ~ 70중량% 및 물 30 ~ 40중량%의 비율로 혼합된 액상수지 100중량부에 대하여 무기질 분말재료 50 내지 100중량부를 포함하는 수성 탄성무기질 도막방수제를 1 ~ 3㎜ 두께로 도포하는 탄성무기질 도막방수제 도포단계(S30); 상기 경화된 탄성무기질 도막방수제 위에 물 35 ~ 45중량%, 메타크릴산메틸 에스테르 중합체(METHACRYLATE METHYL ESTER POLYMER) 20 ~ 30중량%, 천연고무(NATURAL RUBBER) 13 ~ 23중량%, 탄산칼슘(CaCO3) 13 ~ 23중량%, 이산화티타늄(TITANIUM DIOXIDE) 1 ~ 10중량%, 프로필렌글리콜(PROPYLENE GLYCOL) 1 ~ 10중량% 비율로 구성되는 수용성 아크릴 고무계 중도도료를 0.5 ~ 2㎜ 두께로 도포하는 아크릴 고무계 중도도료 도포단계(S40); 상기 경화된 수용성 아크릴 고무계 중도도료 위에 물 46 ~ 66중량%, 메타크릴산 메틸-에틸 아크릴산 공중합체(METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER) 25 ~ 36중량%, 이산화티타늄(TITANIUM DIOXIDE) 5 ~ 25중량%의 비율로 포함하는 주제 20 ~ 80중량부; 및 지방족 이소시아네이트인 헥사메틸렌 디이소시아네이트(HEXAMETHYLENE DIISOCYANATE)를 포함하는 경화제 20 ~ 80중량부;로 구성되는 2액형 수용성 폴리우레탄 도료를 30 ~ 90㎛의 두께로 도포하는 수용성 폴리우레탄 상도도료 도포단계(S50);의 순으로 이루어진다.The eco-friendly composite waterproofing coating method using the two-component water-soluble polyurethane paint includes a concrete base surface pretreatment step (S10) of flattening raised areas and uneven areas of the concrete base surface; An acrylic emulsion base paint application step (S20) of applying a water-soluble acrylic emulsion primer to a thickness of 30 to 70 ㎛ on the prepared concrete surface; Water-based elastic containing 50 to 100 parts by weight of inorganic powder material based on 100 parts by weight of liquid resin mixed at a ratio of 60 to 70% by weight of acrylic emulsion and 30 to 40% by weight of water on the cured water-soluble acrylic emulsion primer. An elastic inorganic film waterproofing agent application step (S30) of applying the inorganic film waterproofing agent to a thickness of 1 to 3 mm; On top of the cured elastic inorganic film waterproofing agent, 35 to 45% by weight of water, 20 to 30% by weight of methyl methacrylate ester polymer (METHACRYLATE METHYL ESTER POLYMER), 13 to 23% by weight of natural rubber, and calcium carbonate (CaCO 3 ) 13 ~ 23% by weight, 1 ~ 10% by weight of TITANIUM DIOXIDE, 1 ~ 10% by weight of propylene glycol (PROPYLENE GLYCOL) Water-soluble acrylic rubber-based intermediate paint applied at a thickness of 0.5 ~ 2mm Intermediate paint application step (S40); On the cured water-soluble acrylic rubber-based intermediate paint, 46 to 66% by weight of water, 25 to 36% by weight of methyl methacrylate-ethyl acrylic acid copolymer (METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER), and 5 to 25% by weight of titanium dioxide (TITANIUM DIOXIDE) 20 to 80 parts by weight of the subject matter comprising; and 20 to 80 parts by weight of a curing agent containing hexamethylene diisocyanate, an aliphatic isocyanate; a water-soluble polyurethane topcoat application step (S50) in which a two-component water-soluble polyurethane paint consisting of an aliphatic isocyanate is applied to a thickness of 30 to 90㎛ ); is done in the following order.
본 발명의 바람직한 실시예에 따르면, 상기 아크릴 에멀젼 하도도료 도포단계(S20)에서 도포되는 수용성 아크릴 에멀젼 프라이머는 고형분 함량 25 ~ 35w%의 아크릴 에멀젼(ACRYL EMULSION)과 물을 1 : 2~4배의 부피비로 희석하여 피도면에 도포하고 상온에서 2 ~ 3시간 동안 양생시키며, 상기 탄성무기질 도막방수제 도포단계(S30)에서 사용되는 무기질 분말재료는 규사(SILICA SAND) 55 ~ 65중량%, 탄산칼슘(CaCO3) 25 ~ 35중량%, 포틀랜드 시멘트(PORTLAND CEMENT) 5 ~ 15중량%로 구성되는 것을 특징으로 한다.According to a preferred embodiment of the present invention, the water-soluble acrylic emulsion primer applied in the acrylic emulsion base paint application step (S20) is a mixture of an acrylic emulsion (ACRYL EMULSION) with a solid content of 25 to 35 w% and water in a ratio of 1:2 to 4 times. It is diluted in volume ratio and applied to the surface to be coated and cured at room temperature for 2 to 3 hours. The inorganic powder materials used in the elastic inorganic waterproofing agent application step (S30) include 55 to 65% by weight of SILICA SAND and calcium carbonate (CaCO 3 ) It is characterized by being composed of 25 to 35% by weight and 5 to 15% by weight of Portland cement.
또한, 상기 아크릴 고무계 중도도료 도포단계(S40)는 수용성 아크릴 고무계 중도도료를 1 ~ 3회 도포하거나, 또는 수용성 아크릴 고무계 중도도료를 1차 도포하고 망사, 직물, 부직포 중에서 선택된 어느 1종의 섬유시트(fiber sheet)를 부착시킨 후 상기 수용성 아크릴 고무계 중도도료를 2차 도포하는 것을 특징으로 하고 있다.In addition, the acrylic rubber-based intermediate paint application step (S40) is performed by applying a water-soluble acrylic rubber-based intermediate paint 1 to 3 times, or by first applying a water-soluble acrylic rubber-based intermediate paint and applying a fiber sheet of any one selected from mesh, fabric, and non-woven fabric. It is characterized by secondary application of the water-soluble acrylic rubber-based intermediate paint after attaching the (fiber sheet).
본 발명에 따른 2액형 수용성 폴리우레탄 도료를 이용한 친환경 복합방수 도장방법은 유기용제를 전혀 사용하지 않는 도장방식으로서, 콘크리트 구조물의 표면에 접착성이 우수한 아크릴 에멀젼 프라이머를 도포한 후 수성 탄성무기질 도막방수제를 도포하여 콘크리트 표면의 수밀성을 증가시키면서 도막의 강도를 강화시킬 수 있으며, 또한 상기 도막방수제와의 친화성이 우수한 수용성 아크릴 고무계 중도도료를 도포하여 층간 접착력과 방수성을 강화시킨 다음, 그 상부에는 내수성, 은폐력, 부착력 및 내마모성이 우수한 2액형 수용성 폴리우레탄 도료를 단계적으로 도포함으로써 혹한, 혹서기에도 단열성이 탁월하고 방수성능을 장기간 보장할 수 있는 효과가 있다.The eco-friendly composite waterproofing coating method using a two-component water-soluble polyurethane paint according to the present invention is a coating method that does not use any organic solvents. After applying an acrylic emulsion primer with excellent adhesion to the surface of a concrete structure, a water-based elastic inorganic coating waterproofing agent is applied. By applying a water-tightness of the concrete surface, the strength of the coating can be strengthened. In addition, a water-soluble acrylic rubber-based intermediate coating with excellent compatibility with the coating waterproofing agent is applied to strengthen interlayer adhesion and waterproofing, and then a water-resistant coating is applied on top of the coating. , By applying a two-component water-soluble polyurethane paint with excellent hiding power, adhesion, and abrasion resistance in stages, it has excellent insulation properties even in extreme cold and hot weather and is effective in ensuring long-term waterproofing performance.
도 1은 본 발명에 따른 복합방수 도장방법을 나타내는 공정순서도이다.Figure 1 is a process flow chart showing the composite waterproofing coating method according to the present invention.
이하에서는 본 발명에 의한 2액형 수용성 폴리우레탄 도료를 이용한 친환경 복합방수 도장방법에 대하여 설명하기로 하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 사람이 발명을 용이하게 실시할 수 있을 정도로 예시하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.Hereinafter, an eco-friendly composite waterproofing coating method using a two-component water-soluble polyurethane paint according to the present invention will be described, but this is to the extent that a person skilled in the art can easily carry out the invention. It is for illustrative purposes only, and does not mean that the technical idea and scope of the present invention are limited thereby.
본 발명의 2액형 수용성 폴리우레탄 도료는 물 46 ~ 66중량%, 메타크릴산 메틸-에틸 아크릴산 공중합체(METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER) 25 ~ 36중량%, 이산화티타늄(TITANIUM DIOXIDE) 5 ~ 25중량%의 비율로 포함하는 주제 20 ~ 80중량부; 및 지방족 이소시아네이트인 헥사메틸렌 디이소시아네이트(HEXAMETHYLENE DIISOCYANATE)를 포함하는 경화제 20 ~ 80중량부;로 구성되며, 고형분 함량 40 ~ 60w%, 비중 1.36 ~ 1.42, 점도 20 ~ 25Poise(25℃) 범위로 형성된다.The two-component water-soluble polyurethane paint of the present invention contains 46 to 66% by weight of water, 25 to 36% by weight of methyl methacrylate-ethyl acrylic acid copolymer (METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER), and 5 to 25% by weight of titanium dioxide (TITANIUM DIOXIDE). 20 to 80 parts by weight of the subject matter comprising %; and 20 to 80 parts by weight of a curing agent containing hexamethylene diisocyanate, an aliphatic isocyanate, and is formed with a solid content of 40 to 60 w%, specific gravity of 1.36 to 1.42, and viscosity of 20 to 25 Poise (25°C). .
상기 주제로 사용되는 메타크릴산 메틸-에틸 아크릴산 공중합체(METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER)는 메타크릴산 메틸(METHACRYLATE METHYL)과 에틸 아크릴산(ETHYL ACRYLATE)과의 혼성중합체로서, 통상적으로 괴상중합, 현탁중합, 유화중합과 같은 라디칼중합에 의해 제조되고 있지만 불순물이 적다는 점에서 괴상중합이 가장 널리 채용되고 있으며, 그로 인하여 접착성이 우수하고 아크릴 우레탄수지 특유의 내후성 및 내열성을 갖는다.METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER, used as the subject matter above, is a copolymer of methyl methacrylate (METHACRYLATE METHYL) and ethyl acrylic acid (ETHYL ACRYLATE), and is usually mass polymerized or suspended. Although it is manufactured by radical polymerization such as polymerization and emulsion polymerization, bulk polymerization is most widely used because it contains fewer impurities. As a result, it has excellent adhesion and has weather resistance and heat resistance unique to acrylic urethane resin.
또한, 경화제로는 지방족 이소시아네이트인 헥사메틸렌 디이소시아네이트(HDI), 이소포론 디이소시아네이트(IPDI) 및 수소화 MDI(HMDI) 등을 들 수 있는데, 이는 방향족 이소시아네이트인 톨루엔디이소시아네이트(TDI), 디페닐메탄 디이소시아네이트(MDI) 및 나프탈렌 디이소시아네이트(NDI)와 이들의 중합체 형태와는 달리 지방족 이소시아네이트로 만든 우레탄은 UV에 안정적이기 때문에 변색이 잘되지 않고 산화 및 분해에 덜 민감하다는 장점이 있으며, 상기 지방족 이소시아네이트 중 반응성, 내구성 및 원료비 등을 고려하여 헥사메틸렌 디이소시아네이트(HEXAMETHYLENE DIISOCYANATE)를 포함하는 경화제를 사용하는 것이 가장 바람직하다는 결론을 도출하였다.In addition, curing agents include aliphatic isocyanates such as hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), and hydrogenated MDI (HMDI), which include aromatic isocyanates such as toluene diisocyanate (TDI) and diphenylmethane diisocyanate. Unlike isocyanate (MDI) and naphthalene diisocyanate (NDI) and their polymer forms, urethanes made from aliphatic isocyanates have the advantage of being UV-stable, resistant to discoloration, and less susceptible to oxidation and decomposition. Considering reactivity, durability, and raw material cost, it was concluded that it was most preferable to use a curing agent containing hexamethylene diisocyanate (HEXAMETHYLENE DISOCYANATE).
도 1에 도시된 바와 같이, 본 발명에 따른 2액형 수용성 폴리우레탄 도료를 이용한 친환경 복합방수 도장방법은, 콘크리트 바탕면의 들뜬 부위 및 요철이 있는 부위를 평평하게 정리하는 콘크리트 바탕면 전처리 단계(S10); 상기 정리된 콘크리트 바탕면에 수용성 아크릴 에멀젼 프라이머를 30 ~ 70㎛ 두께로 도포하는 아크릴 에멀젼 하도도료 도포단계(S20); 상기 경화된 수용성 아크릴 에멀젼 프라이머 위에 아크릴 에멀젼(ACRYL EMULSION) 60 ~ 70중량% 및 물 30 ~ 40중량%의 비율로 혼합된 액상수지 100중량부에 대하여 무기질 분말재료 50 내지 100중량부를 포함하는 수성 탄성무기질 도막방수제를 1 ~ 3㎜ 두께로 도포하는 탄성무기질 도막방수제 도포단계(S30); 상기 경화된 탄성무기질 도막방수제 위에 물 35 ~ 45중량%, 메타크릴산메틸 에스테르 중합체(METHACRYLATE METHYL ESTER POLYMER) 20 ~ 30중량%, 천연고무(NATURAL RUBBER) 13 ~ 23중량%, 탄산칼슘(CaCO3) 13 ~ 23중량%, 이산화티타늄(TITANIUM DIOXIDE) 1 ~ 10중량%, 프로필렌글리콜(PROPYLENE GLYCOL) 1 ~ 10중량% 비율로 구성되는 수용성 아크릴 고무계 중도도료를 0.5 ~ 2㎜ 두께로 도포하는 아크릴 고무계 중도도료 도포단계(S40); 상기 경화된 수용성 아크릴 고무계 중도도료 위에 물 46 ~ 66중량%, 메타크릴산 메틸-에틸 아크릴산 공중합체(METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER) 25 ~ 36중량%, 이산화티타늄(TITANIUM DIOXIDE) 5 ~ 25중량%의 비율로 포함하는 주제 20 ~ 80중량부; 및 지방족 이소시아네이트인 헥사메틸렌 디이소시아네이트(HEXAMETHYLENE DIISOCYANATE)를 포함하는 경화제 20 ~ 80중량부;로 구성되는 2액형 수용성 폴리우레탄 도료를 30 ~ 90㎛의 두께로 도포하는 수용성 폴리우레탄 상도도료 도포단계(S50);의 순으로 이루어지며, 상기에서 도포되는 도료들의 두께는 경화된 ‘건조도막’을 기준으로 한다.As shown in Figure 1, the eco-friendly composite waterproofing coating method using a two-component water-soluble polyurethane paint according to the present invention includes a concrete base surface pretreatment step (S10) of flattening raised areas and uneven areas of the concrete base surface. ); An acrylic emulsion primer application step (S20) of applying a water-soluble acrylic emulsion primer to a thickness of 30 to 70 ㎛ on the prepared concrete surface; Water-based elastic containing 50 to 100 parts by weight of inorganic powder material based on 100 parts by weight of liquid resin mixed at a ratio of 60 to 70% by weight of ACRYL EMULSION and 30 to 40% by weight of water on the cured water-soluble acrylic emulsion primer. An elastic inorganic film waterproofing agent application step (S30) of applying the inorganic film waterproofing agent to a thickness of 1 to 3 mm; On the cured elastic inorganic film waterproofing agent, 35 to 45% by weight of water, 20 to 30% by weight of methyl methacrylate ester polymer (METHACRYLATE METHYL ESTER POLYMER), 13 to 23% by weight of natural rubber, and calcium carbonate (CaCO 3 ) 13 ~ 23% by weight, 1 ~ 10% by weight of TITANIUM DIOXIDE, 1 ~ 10% by weight of propylene glycol (PROPYLENE GLYCOL) Water-soluble acrylic rubber-based intermediate paint applied at a thickness of 0.5 ~ 2mm Intermediate paint application step (S40); On the cured water-soluble acrylic rubber-based intermediate paint, 46 to 66% by weight of water, 25 to 36% by weight of methyl methacrylate-ethyl acrylic acid copolymer (METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER), and 5 to 25% by weight of titanium dioxide (TITANIUM DIOXIDE) 20 to 80 parts by weight of the subject matter comprising; and 20 to 80 parts by weight of a curing agent containing hexamethylene diisocyanate (HEXAMETHYLENE DISOCYANATE), an aliphatic isocyanate; a water-soluble polyurethane topcoat application step (S50) in which a two-component water-soluble polyurethane paint consisting of an aliphatic isocyanate is applied to a thickness of 30 to 90㎛ );, and the thickness of the paints applied above is based on the cured 'dry film'.
먼저, 콘크리트 바탕면 전처리 단계(S10)는 콘크리트 바탕면의 들뜬 부위 및 요철이 있는 부위를 평평하게 정리하는 공정으로서, 고강도 콘크리트인 경우에는 그라인딩처리 시 부착력 불량이 발생될 수 있기 때문에 블라스팅(blasting) 방법으로 표면처리를 실시하여 부착성능을 향상시킬 수 있으며, 또 틈새, 홈, 크랙 등은 V-커팅 후 에폭시 퍼티(putty) 등으로 메운 후 연마하는 것이 수용성 아크릴 에멀젼 프라이머와의 부착성 및 방수성능을 향상시킬 수 있다.First, the concrete base surface pretreatment step (S10) is a process of flattening the raised areas and uneven areas of the concrete base surface. In the case of high-strength concrete, blasting is required because poor adhesion may occur during grinding. Adhesion performance can be improved by surface treatment, and gap, grooves, cracks, etc. are filled with epoxy putty after V-cutting and then polished to improve adhesion and waterproofing performance with water-soluble acrylic emulsion primer. can be improved.
상기와 같은 콘크리트 바탕면은 피도면의 유분, 수분, 모래, 먼지 등 기타 이물질을 완전히 제거한 다음, 콘크리트의 함수율은 6% 이하로 양생시킨 후에 도장작업을 실시하는 것이 도막의 수명 유지에 더욱 효과적이다.For the concrete surface as described above, it is more effective to maintain the life of the coating film by completely removing oil, moisture, sand, dust, and other foreign substances from the surface to be coated, and then curing the moisture content of the concrete to 6% or less before painting.
다음으로, 아크릴 에멀젼 하도도료 도포단계(S20)는 상기 정리된 콘크리트 바탕면에 수용성 아크릴 에멀젼 프라이머를 30 ~ 70㎛ 두께(건조도막)로 도포하는 공정인데, 이는 콘크리트 바탕면이 치밀하고 평탄하게 형성됨에 따라 장기간 콘크리트의 중성화 및 열화를 방지하여 콘크리트 구조물의 내구성을 증대시킬 뿐만 아니라 그 상부에 도포되는 탄성무기질 도막방수제와의 결합성을 향상시킬 수 있으며, 이는 아크릴 에멀젼 프라이머의 점도를 적절히 조절함으로써 콘크리트의 기공 내에 침투가 용이하고 접착강도와 내구성을 더욱 양호하게 유지하게 된다.Next, the acrylic emulsion primer application step (S20) is a process of applying a water-soluble acrylic emulsion primer to a thickness of 30 to 70㎛ (dry film) on the prepared concrete surface. This ensures that the concrete surface is dense and flat. Accordingly, it not only increases the durability of concrete structures by preventing neutralization and deterioration of concrete for a long period of time, but also improves bonding with the elastic inorganic coating waterproofing agent applied on top of the concrete. This is achieved by appropriately controlling the viscosity of the acrylic emulsion primer. It is easy to penetrate into the pores and maintains better adhesive strength and durability.
상기 수용성 아크릴 에멀젼 프라이머는 시멘트 및 보수도장 건축물의 전처리제로 적합한 소재로서, 아크릴 에멀젼(Acryl emulsion)을 주성분으로 하는 알칼리성 기재이기 때문에 콘크리트의 백아화 및 풍화현상을 효과적으로 방지할 수 있으며, 이는 고형분 함량 25 ~ 35w%의 아크릴 에멀젼과 물을 1 : 2~4배의 부피비로 희석하여 피도면에 30 ~ 70㎛ 정도의 얇은 두께로 도포하고 상온에서 2 ~ 3시간 동안 양생시키면 그로인한 물성을 최대한 발휘할 수 있다.The water-soluble acrylic emulsion primer is a material suitable as a pretreatment agent for cement and repair painting buildings. Since it is an alkaline base material mainly composed of acryl emulsion, it can effectively prevent whitening and weathering of concrete, and has a solid content of 25%. By diluting ~35w% acrylic emulsion and water at a volume ratio of 1:2~4 times and applying it to the surface to be coated in a thin thickness of about 30~70㎛ and curing at room temperature for 2~3 hours, the resulting physical properties can be maximized. .
다음으로, 탄성무기질 도막방수제 도포단계(S30)는 상기 경화된 수용성 아크릴 에멀젼 프라이머 위에 아크릴 에멀젼(Acryl emulsion) 60 ~ 70중량% 및 물 30 ~ 40중량%의 비율로 혼합된 액상수지 100중량부에 대하여 무기질 분말재료 50 내지 100중량부를 포함하는 수성 탄성무기질 도막방수제를 1 ~ 3㎜ 두께(건조도막)로 도포하는 공정으로, 상기 무기질 분말재료는 규사(Silica sand) 55 ~ 65중량%, 탄산칼슘(CaCO3) 25 ~ 35중량%, 포틀랜드 시멘트(Portland cement) 5 ~ 15중량%로 구성됨으로써 콘크리트 바탕면이 치밀하고 평탄하게 형성됨에 따라 콘크리트 구조물의 내구성을 증대시킬 수 있는 것이다.Next, the elastic inorganic film waterproofing agent application step (S30) is performed by applying 100 parts by weight of liquid resin mixed at a ratio of 60 to 70% by weight of acrylic emulsion and 30 to 40% by weight of water on the cured water-soluble acrylic emulsion primer. This is a process of applying a water-based elastic inorganic film waterproofing agent containing 50 to 100 parts by weight of inorganic powder material to a thickness of 1 to 3 mm (dry film), wherein the inorganic powder material includes 55 to 65% by weight of silica sand and calcium carbonate. By being composed of 25 to 35% by weight of (CaCO 3 ) and 5 to 15% by weight of Portland cement, the durability of the concrete structure can be increased by forming a dense and flat concrete surface.
상기 수성 탄성무기질 도막방수제는 경화된 수용성 아크릴 에멀젼 프라이머 위에 도포되며, 이는 아크릴 에멀젼 액상수지 100중량부에 대하여 무기질 분말재료가 50 내지 100중량부 범위로 혼입되어 1 ~ 3㎜ 두께로 도포됨에 따라 콘크리트 표면의 수밀성을 증가시키면서 장기간 콘크리트의 중성화 및 열화를 방지하고 도막의 강도를 강화시킴은 물론 내충격성을 증대시킬 수 있다.The water-based elastic inorganic film waterproofing agent is applied on the cured water-soluble acrylic emulsion primer, and is mixed with 50 to 100 parts by weight of inorganic powder material based on 100 parts by weight of acrylic emulsion liquid resin and applied to the concrete at a thickness of 1 to 3 mm. By increasing the watertightness of the surface, it can prevent long-term neutralization and deterioration of concrete, strengthen the strength of the coating film, and increase impact resistance.
상기 규사(Silica sand)는 이산화규소(SiO2)가 주성분을 이루는 모래를 말하며, 상기 이산화규소는 실리카(Silica)라고 부르기도 하고 이러한 이산화규소는 산에 녹지 않지만 알칼리용융 또는 탄산염융해 등에 의하여 가용성인 규산염이 되기 때문에 탄산칼슘(CaCO3)을 첨가하여 상호 결합력을 강화시킬 수 있게 된다.The silica sand refers to sand whose main component is silicon dioxide (SiO 2 ). The silicon dioxide is also called silica. This silicon dioxide is insoluble in acid, but becomes soluble by alkali melting or carbonate melting. Because it becomes a silicate, the mutual bonding power can be strengthened by adding calcium carbonate (CaCO 3 ).
또한, 탄산칼슘(CaCO3)은 상온에서 흰색의 고체로서 값이 싸고 비중도 크지 않아 아스팔트나 콘크리트, 제지공업, 각종 화학제품의 충전재 및 시멘트의 주원료, 타일용 접착제 등 공업분야에서 널리 사용되고 있으며, 산화칼슘의 원료, 제철 및 건축재료, 토양 등의 중화제로 사용되기도 한다.In addition, calcium carbonate (CaCO 3 ) is a white solid at room temperature, is cheap, and has a low specific gravity, so it is widely used in industrial fields such as asphalt, concrete, paper manufacturing, fillers for various chemical products, the main raw material for cement, and adhesive for tiles. It is also used as a neutralizer for raw materials for calcium oxide, steel and building materials, and soil.
그리고 포틀랜드 시멘트(Portland cement)는 주로 석회질 원료와 점토질 원료를 적당한 비율로 혼합하여 미분쇄한 후 그 일부가 용융할 때까지(약 1,450℃) 소성하여 얻어지는 클링커에 대해 응결조절제로서 약간의 석고를 가하여 미분쇄하여 만들어지며, 주성분은 석회(CaO), 실리카(SiO2), 알루미나(Al2O3) 및 산화철(Fe2O3) 등으로서, 물로 반죽하면 얼마 후 유동성을 잃고 굳어지는 과정을 응결(setting)이라 하며, 그 후 강도를 가지게 되는 과정을 경화라고 한다.Portland cement is mainly obtained by mixing calcareous and clay raw materials in an appropriate ratio, pulverizing them, and then firing them until part of them melts (approximately 1,450°C). A small amount of gypsum is added as a setting regulator to the clinker. It is made by fine pulverization, and the main ingredients are lime (CaO), silica (SiO 2 ), alumina (Al 2 O 3 ), and iron oxide (Fe 2 O 3 ). When kneaded with water, it loses fluidity after a while and hardens. It is called setting, and the process of gaining strength is called hardening.
상기와 같이 구성되는 무기질 분말재료는 규사(Silica sand)와 탄산칼슘(CaCO3)과 포틀랜드 시멘트(Portland cement)의 배합을 대략 60 : 30 : 10의 중량비율로 혼합하는 것이 도막의 강도 및 내충격성을 증대시키기에 가장 적합한 것으로 연구되었다.The inorganic powder material composed as above is a mixture of silica sand, calcium carbonate (CaCO 3 ), and Portland cement at a weight ratio of approximately 60:30:10 to increase the strength and impact resistance of the coating film. It was studied as being most suitable for increasing .
다음으로, 아크릴 고무계 중도도료 도포단계(S40)는 상기 경화된 탄성무기질 도막방수제 위에 물 35 ~ 45중량%, 메타크릴산메틸 에스테르 중합체(METHACRYLATE METHYL ESTER POLYMER) 20 ~ 30중량%, 천연고무(NATURAL RUBBER) 13 ~ 23중량%, 탄산칼슘(CaCO3) 13 ~ 23중량%, 이산화티타늄(TITANIUM DIOXIDE) 1 ~ 10중량%, 프로필렌글리콜(PROPYLENE GLYCOL) 1 ~ 10중량% 비율로 구성되는 수용성 아크릴 고무계 중도도료를 0.5 ~ 2㎜ 두께(건조도막)로 도포하는 공정인데, 상기 메타크릴산메틸 에스테르 중합체(METHACRYLATE METHYL ESTER POLYMER)는 통상적으로 불순물이 적게 발생된다는 점에서 괴상중합에 의해 제조되고 있으며, 그로 인하여 접착성이 우수하고 아크릴 고무수지 특유의 내후성 및 내열성을 갖는다.Next, in the acrylic rubber-based intermediate coating application step (S40), 35 to 45% by weight of water, 20 to 30% by weight of methyl methacrylate ester polymer (METHACRYLATE METHYL ESTER POLYMER), and natural rubber (NATURAL) are applied on the cured elastic inorganic coating waterproofing agent. RUBBER) 13 to 23% by weight, calcium carbonate (CaCO 3 ) 13 to 23% by weight, titanium dioxide (TITANIUM DIOXIDE) 1 to 10% by weight, and propylene glycol (PROPYLENE GLYCOL) 1 to 10% by weight. This is a process of applying intermediate paint to a thickness of 0.5 to 2 mm (dry film). The methyl methacrylate ester polymer (METHACRYLATE METHYL ESTER POLYMER) is usually manufactured by bulk polymerization in that it generates less impurities. Therefore, it has excellent adhesion and has weather resistance and heat resistance unique to acrylic rubber resin.
본 발명에서는 상기 메타크릴산메틸 에스테르 중합체 20 ~ 30중량%에 대해 천연고무(NATURAL RUBBER)를 13 ~ 23중량%의 비율로 첨가하고 고속 교반시킴으로써 완전히 현탁될 수 있으며, 상기 천연고무는 내수성과 탄력성 및 신축성이 뛰어난 특징을 가지고 있으므로, 그로부터 제조되는 수용성 아크릴 고무계 중도도료는 상기 경화된 탄성무기질 도막방수제 위에 0.5 ~ 2㎜ 두께로 도포됨으로써 경화된 후의 층간 결합력이 증대되고 고신장성을 발휘할 수 있는 것으로 조사되었다.In the present invention, natural rubber can be completely suspended by adding 13 to 23 wt% of natural rubber to 20 to 30 wt% of the methacrylic acid methyl ester polymer and stirring at high speed, and the natural rubber has water resistance and elasticity. And because it has excellent elasticity, the water-soluble acrylic rubber-based intermediate coating produced from it was found to be able to increase the bonding force between layers after curing and exhibit high elongation by applying it to a thickness of 0.5 to 2 mm on the cured elastic inorganic coating waterproofing agent. It has been done.
또한, 상기 수용성 아크릴 고무계 중도도료는 기능성 충전제인 탄산칼슘 13 ~ 23중량% 및 차열안료인 이산화티타늄 1 ~ 10중량%을 함유함으로써 도막의 강도, 치수 안정성, 내마모성 등이 향상됨은 물론 단열효과를 구현할 수 있는데, 상기 무기질 분말은 기준을 초과하여 포함될 시 접착력 및 작업성이 저하될 수 있으며, 이에 방부작용을 갖는 프로필렌글리콜을 1 ~ 10중량% 함유함으로써 도막에 대한 부동액 및 윤활제와 같은 역할을 한다.In addition, the water-soluble acrylic rubber-based intermediate coating contains 13 to 23% by weight of calcium carbonate as a functional filler and 1 to 10% by weight of titanium dioxide as a heat-insulating pigment, thereby improving the strength, dimensional stability and abrasion resistance of the coating film, as well as realizing an insulation effect. However, if the inorganic powder is included in excess of the standard, adhesion and workability may be reduced. Therefore, by containing 1 to 10% by weight of propylene glycol, which has a preservative effect, it acts as an antifreeze and lubricant for the coating film.
여기에서, 상기 아크릴 고무계 중도도료 도포단계(S40)는 수용성 아크릴 고무계 중도도료를 1 ~ 3회 도포하거나, 또는 수용성 아크릴 고무계 중도도료를 1차 도포하고 망사, 직물, 부직포 중에서 선택된 어느 1종의 섬유시트(fiber sheet)를 부착시킨 후 상기 수용성 아크릴 고무계 중도도료를 2차 도포할 수 있다.Here, the acrylic rubber-based intermediate paint application step (S40) involves applying a water-soluble acrylic rubber-based intermediate paint 1 to 3 times, or first applying a water-soluble acrylic rubber-based intermediate paint and applying any one type of fiber selected from mesh, fabric, and non-woven fabric. After attaching a fiber sheet, the water-soluble acrylic rubber-based intermediate coating can be applied a second time.
상기와 같이 부착된 섬유시트는 고강도의 망사, 직물, 부직포 중의 어느 1종을 선택적으로 사용함으로써 바탕면에서 올라오는 수분 및 공기를 흡수하여 방수층의 들뜸 현상이나 핀홀(pinhole) 및 기포 발생을 미연에 방지할 수 있으며, 여기에 수용성 아크릴 고무계 중도도료가 함침됨으로써 표면의 평활성을 향상시키고 도막의 층간 결합력을 강화시킴에 의해 도막의 인장력이 강화되어 콘크리트 구조물에 대한 미세 진행형 균열을 방지하고 방수층의 내구성과 단열효과를 증대시킬 수 있다.The fiber sheet attached as described above absorbs moisture and air rising from the base surface by selectively using any one of high-strength mesh, fabric, and non-woven fabric to prevent the phenomenon of lifting of the waterproof layer or the generation of pinholes and bubbles. By impregnating it with a water-soluble acrylic rubber-based intermediate coating, the smoothness of the surface is improved and the interlayer bonding strength of the coating film is strengthened, thereby strengthening the tensile strength of the coating film, preventing fine progressive cracks in the concrete structure, and improving the durability of the waterproof layer. The insulation effect can be increased.
상기 섬유시트 부착시의 이음부는 약 5 ~ 10㎝의 폭으로 겹치거나 맞대서 시공한 후 동종의 섬유시트로 보강할 수 있으며, 그로 인한 연결부위는 상기 중도도료를 이용하여 접착시키는 것이 바람직하다.The joints when attaching the fiber sheets can be constructed by overlapping or butting each other to a width of about 5 to 10 cm and then reinforcing them with fiber sheets of the same type. It is preferable to bond the resulting joints using the intermediate paint.
상기 아크릴 고무계 중도도료 도포단계(S40)에서 도포되는 수용성 아크릴 고무계 중도도료에 대한 작업성 및 시공성 등을 증명하기 위한 pH, 비중, 점도 등의 품질 시험결과를 아래 [표 1]에 나타내었다.Quality test results such as pH, specific gravity, and viscosity to prove the workability and constructability of the water-soluble acrylic rubber-based intermediate coating applied in the acrylic rubber-based intermediate coating application step (S40) are shown in [Table 1] below.
마지막으로, 수용성 폴리우레탄 상도도료 도포단계(S50)는 상기 경화된 수용성 아크릴 고무계 중도도료 위에 물 46 ~ 66중량%, 메타크릴산 메틸-에틸 아크릴산 공중합체(METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER) 25 ~ 36중량%, 이산화티타늄(TITANIUM DIOXIDE) 5 ~ 25중량%의 비율로 포함하는 주제 20 ~ 80중량부; 및 지방족 이소시아네이트인 헥사메틸렌 디이소시아네이트(HEXAMETHYLENE DIISOCYANATE)를 포함하는 경화제 20 ~ 80중량부;로 구성되는 2액형 수용성 폴리우레탄 도료를 30 ~ 90㎛의 두께(건조도막)로 도포하는 공정이다.Finally, in the water-soluble polyurethane topcoat application step (S50), 46 to 66% by weight of water and 25 to 36% of methyl methacrylic acid-ethyl acrylic acid copolymer (METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER) are applied on the cured water-soluble acrylic rubber-based intermediate paint. % by weight, 20 to 80 parts by weight of a subject containing 5 to 25% by weight of titanium dioxide (TITANIUM DIOXIDE); and 20 to 80 parts by weight of a curing agent containing hexamethylene diisocyanate, an aliphatic isocyanate. This is a process of applying a two-component water-soluble polyurethane paint to a thickness of 30 to 90㎛ (dry film).
상기 2액형 수용성 폴리우레탄 도료는 아크릴 우레탄 수지로 구성됨으로써 수용성 아크릴 고무계 중도도료와 접합성이 우수할 뿐만 아니라 일반 우레탄 도료와는 달리 유연성이 풍부한 무독성 소재로서 작업성이 양호하고 빠른 경화특성, 우수한 접착강도와 내구성 및 난연성을 가진다. 그리고 기존의 일반적 코팅제와 달리 수용성이어서 환경에 친화적이고 유성제품과의 상용성이 있기 때문에 추후 상도도막에 대한 보수작업도 용이하다.The two-component water-soluble polyurethane paint is composed of acrylic urethane resin, so it not only has excellent bonding properties with water-soluble acrylic rubber-based intermediate coatings, but also, unlike general urethane paints, is a flexible, non-toxic material with good workability, fast curing characteristics, and excellent adhesive strength. It has durability and flame retardancy. And unlike existing general coatings, it is water-soluble, so it is environmentally friendly and compatible with oil-based products, making it easy to repair the top coat in the future.
이에 따라 상기 2액형 수용성 폴리우레탄 도료로 형성되는 수용성 폴리우레탄 상도도막은 아크릴 고무계 중도도료 도포단계(S40)에서 도포되는 수용성 아크릴 고무계 중도도료와의 접착성이 양호하다는 사실에 기인하여, 유기용제를 전혀 사용하지 않는 100% 수성(水性) 용매를 사용함에도 유성과 동등한 수준의 우수한 내구성은 물론 내수성, 은폐력, 부착력 및 내마모성이 탁월하므로, 이는 건축물 내부온도를 조절하여 에너지를 절약하고 구조물 자체의 내구성을 증대시킬 수 있는 장점도 있다.Accordingly, due to the fact that the water-soluble polyurethane top coat formed from the two-component water-soluble polyurethane paint has good adhesion with the water-soluble acrylic rubber-based intermediate paint applied in the acrylic rubber-based intermediate paint application step (S40), an organic solvent was used. Even though 100% water-based solvent is used, which is not used at all, it has excellent durability equivalent to that of oil, as well as excellent water resistance, hiding power, adhesion, and abrasion resistance. This saves energy by controlling the internal temperature of the building and improves the durability of the structure itself. There are also advantages that can be increased.
또한, 상기 2액형 수용성 폴리우레탄 도료는 주제에 이산화티타늄(TITANIUM DIOXIDE)을 5 ~ 25중량% 비율로 함으로써 태양열 반사효과가 있고 열전도도가 낮아 우수한 단열효과를 나타내기 때문에 콘크리트는 물론 철재 구조물로 이루어진 건축물 내부온도를 조절하여 에너지를 절약하고 구조물 자체의 내구성을 증대시킬 수 있는 효과가 있으며, 상기 주제는 비중 1.2±0.3, 점도 70±10KU(300 ~ 900cP)(25℃)로 조절하는 것이 경화제와의 반응성 등을 고려할 때 가장 우수한 물성을 나타낼 수 있다.In addition, the two-component water-soluble polyurethane paint contains 5 to 25% by weight of titanium dioxide (TITANIUM DIOXIDE), so it has a solar heat reflection effect and has low thermal conductivity, so it has an excellent insulation effect, so it can be used in concrete as well as steel structures. It has the effect of saving energy and increasing the durability of the structure itself by controlling the internal temperature of the building. For the above subject, adjusting the specific gravity to 1.2±0.3 and the viscosity to 70±10KU (300 ~ 900cP) (25℃) is recommended using a hardener and Considering the reactivity, etc., it can exhibit the best physical properties.
상기 이산화티타늄은 아나타제형 이산화티타늄(anatase TiO2) 및 루틸형 이산화티타늄(rutile TiO2)을 선택적으로 사용하거나 혼합하여 사용할 수 있는데, 이산화티타늄은 은폐력이 커서 거의 모든 용매에 녹지 않으며, 굴절률이 매우 큰 이방성을 나타내면서 광(光) 산란성도 크고 매우 안정한 상태로 존재하는 비독성, 절연성 물질로 알려져 있다. 또 산화력이 커서 항균작용으로 인한 곰팡이나 세균 발생을 억제할 뿐만 아니라 악취 제거 및 살균작용이 있는 것으로 알려져 있다.The titanium dioxide can be used selectively or by mixing anatase-type titanium dioxide (anatase TiO 2 ) and rutile-type titanium dioxide (rutile TiO 2 ). Titanium dioxide has a large hiding power and is insoluble in almost all solvents, and has a very high refractive index. It is known as a non-toxic, insulating material that exhibits great anisotropy, has high light scattering properties, and exists in a very stable state. In addition, it is known to have a large oxidizing power, which not only suppresses the growth of mold and bacteria due to antibacterial action, but also removes odor and has a sterilizing effect.
그리고 상기 이산화티타늄은 평균입도 0.2 ~ 10㎛의 분말을 사용함으로써 기존 평균입도 150㎛ 정도의 중공실리카를 배합한 단열도료에 비해 더욱 견고한 도막을 형성할 수 있음은 물론 열변형에 의한 탈락이나 파열 없이 탁월한 내구성을 가지며, 아울러 상기 2액형 수용성 폴리우레탄 도료는 그로부터 형성되는 상도도막의 색상 발현을 위해 친환경 안료를 0.1 ~ 25중량부 이내로 첨가할 수도 있다.In addition, by using the titanium dioxide powder with an average particle size of 0.2 ~ 10㎛, it is possible to form a more durable coating film than existing insulating paints mixed with hollow silica with an average particle size of about 150㎛, as well as without falling off or rupturing due to thermal deformation. It has excellent durability, and in addition, the two-component water-soluble polyurethane paint can add an eco-friendly pigment within 0.1 to 25 parts by weight to express the color of the top coat formed therefrom.
상기와 같은 2액형 수용성 폴리우레탄 도료는 붓, 롤러, 스프레이 등에 의한 1 ~ 2회의 도포로 평균 30 ~ 90㎛ 두께(건조도막)의 상도도막을 형성할 수 있는데, 실제 시공 시에는 온도가 낮은 곳(5℃ 이하), 습도가 높은 날(85% 이상), 풍속이 강한 날(5m/sec), 강우나 강설 등의 열악한 환경에서는 시공하지 않는 것이 우수한 접착강도 및 내후성 등의 물성을 양호하게 유지할 수 있으며, 이러한 작업상의 기상조건에 따라 도료의 양생시간을 12 ~ 48시간 이내로 조절할 수 있다.The above two-component water-soluble polyurethane paint can form a top coat with an average thickness of 30 to 90㎛ (dry film) by applying 1 to 2 times with a brush, roller, spray, etc., but in actual construction, it must be applied in a place with a low temperature. (below 5℃), days with high humidity (more than 85%), days with strong wind speeds (5m/sec), and rain or snowfall. Do not apply in harsh environments to maintain good physical properties such as excellent adhesive strength and weather resistance. Depending on the working weather conditions, the curing time of the paint can be adjusted within 12 to 48 hours.
상기 2액형 수용성 폴리우레탄 도료를 한국화학융합시험연구원(KTR)에 의뢰하여 인장강도, 파단 시의 신장률, 발수도 등의 물성을 측정한 결과, 아래 [표 2]와 같은 시험결과를 나타내었다.The two-component water-soluble polyurethane paint was commissioned by the Korea Testing and Research Institute (KTR) to measure physical properties such as tensile strength, elongation at break, and water repellency, and the test results were shown in [Table 2] below.
상기 [표 2]에서와 같이, 본 발명에서 상도도료로 사용되는 2액형 수용성 폴리우레탄 도료는 인장강도, 파단 시의 신장률, 발수도 등의 물성에 대한 시험결과로 비추어 볼 때, 본 발명이 목적으로 하고 있는 콘크리트 구조물의 수분 침투를 효과적으로 차단할 수 있을 뿐만 아니라 내구성도 보다 우수하다는 사실을 확인할 수 있으며, 실제로 KS F 4936 콘크리트 보호용 도막재 시험에 관한 모든 항목에서 공인성적서 규격을 만족하고 있다.As shown in [Table 2] above, in light of the test results for physical properties such as tensile strength, elongation at break, and water repellency of the two-component water-soluble polyurethane paint used as a topcoat in the present invention, the purpose of the present invention is It can be confirmed that it not only effectively blocks moisture penetration into concrete structures, but also has superior durability. In fact, it satisfies the official report standards in all items related to the KS F 4936 concrete protective coating material test.
상술한 바와 같이, 본 발명은 유기용제를 전혀 사용하지 않는 환경 친화적인 도장방식으로서, 콘크리트 바탕면 전처리 단계(S10); 아크릴 에멀젼 하도도료 도포단계(S20); 탄성무기질 도막방수제 도포단계(S30); 아크릴 고무계 중도도료 도포단계(S40); 수용성 폴리우레탄 상도도료 도포단계(S50)를 차례로 거치는 친환경 복합방수 도장방법에 의해 방수도막을 형성함으로써 열전도도가 낮아 혹한, 혹서기에도 단열성과 방수성능이 양호하므로 콘크리트는 물론 철재 구조물로 이루어진 건축물조차 그 내부온도를 잘 유지할 수 있으며, 그로 인하여 에너지를 절약하고 구조물 자체의 내구성을 증대시키는 작용을 발휘할 수 있다.As described above, the present invention is an environmentally friendly painting method that does not use any organic solvents, and includes a concrete base surface pretreatment step (S10); Acrylic emulsion base paint application step (S20); Elastic inorganic film waterproofing agent application step (S30); Acrylic rubber-based intermediate paint application step (S40); By forming a waterproof coating film using an eco-friendly composite waterproofing coating method that sequentially goes through the water-soluble polyurethane topcoat application step (S50), the thermal conductivity is low and the insulation and waterproofing performance are good even in extreme cold and hot weather, so even buildings made of concrete as well as steel structures can be used. The internal temperature can be well maintained, thereby saving energy and increasing the durability of the structure itself.
따라서 본 발명에 의한 2액형 수용성 폴리우레탄 도료 및 이를 이용한 친환경 복합방수 도장방법은 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지로 치환, 변형 및 변경이 가능한 것으로, 콘크리트 건물의 옥상은 물론 콘크리트 구조물의 노출된 벽체나 바닥재 등의 표면에도 그 기술적 사상을 벗어나지 않는 범위 내에서 다양한 용도와 형태로 적용될 수 있다.Therefore, the two-component water-soluble polyurethane paint according to the present invention and the eco-friendly composite waterproofing coating method using the same can be replaced, modified, and changed in various ways without departing from the technical spirit of the present invention, and can be used on concrete as well as on the roof of a concrete building. It can be applied to surfaces such as exposed walls or flooring of structures in various uses and forms without departing from its technical spirit.
Claims (6)
상기 정리된 콘크리트 바탕면에 수용성 아크릴 에멀젼 프라이머를 30 ~ 70㎛ 두께로 도포하는 아크릴 에멀젼 하도도료 도포단계(S20);
상기 경화된 수용성 아크릴 에멀젼 프라이머 위에 아크릴 에멀젼(ACRYL EMULSION) 60 ~ 70중량% 및 물 30 ~ 40중량%의 비율로 혼합된 액상수지 100중량부에 대하여 무기질 분말재료 50 내지 100중량부를 포함하는 수성 탄성무기질 도막방수제를 1 ~ 3㎜ 두께로 도포하는 탄성무기질 도막방수제 도포단계(S30);
상기 경화된 탄성무기질 도막방수제 위에 물 35 ~ 45중량%, 메타크릴산메틸 에스테르 중합체(METHACRYLATE METHYL ESTER POLYMER) 20 ~ 30중량%, 천연고무(NATURAL RUBBER) 13 ~ 23중량%, 탄산칼슘(CaCO3) 13 ~ 23중량%, 이산화티타늄(TITANIUM DIOXIDE) 1 ~ 10중량%, 프로필렌글리콜(PROPYLENE GLYCOL) 1 ~ 10중량% 비율로 구성되는 수용성 아크릴 고무계 중도도료를 0.5 ~ 2㎜ 두께로 도포하는 아크릴 고무계 중도도료 도포단계(S40);
상기 경화된 수용성 아크릴 고무계 중도도료 위에 물 46 ~ 66중량%, 메타크릴산 메틸-에틸 아크릴산 공중합체(METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER) 25 ~ 36중량%, 이산화티타늄(TITANIUM DIOXIDE) 5 ~ 25중량%의 비율로 포함하는 주제 20 ~ 80중량부; 및 지방족 이소시아네이트인 헥사메틸렌 디이소시아네이트(HEXAMETHYLENE DIISOCYANATE)를 포함하는 경화제 20 ~ 80중량부;로 구성되는 2액형 수용성 폴리우레탄 도료를 30 ~ 90㎛의 두께로 도포하는 수용성 폴리우레탄 상도도료 도포단계(S50);
의 순으로 이루어지는 것을 특징으로 하는 친환경 복합방수 도장방법.Concrete base surface pretreatment step (S10) of flattening raised areas and uneven areas of the concrete base surface;
An acrylic emulsion primer application step (S20) of applying a water-soluble acrylic emulsion primer to a thickness of 30 to 70 ㎛ on the prepared concrete surface;
Water-based elastic containing 50 to 100 parts by weight of inorganic powder material based on 100 parts by weight of liquid resin mixed at a ratio of 60 to 70% by weight of ACRYL EMULSION and 30 to 40% by weight of water on the cured water-soluble acrylic emulsion primer. An elastic inorganic film waterproofing agent application step (S30) of applying the inorganic film waterproofing agent to a thickness of 1 to 3 mm;
On the cured elastic inorganic film waterproofing agent, 35 to 45% by weight of water, 20 to 30% by weight of methyl methacrylate ester polymer (METHACRYLATE METHYL ESTER POLYMER), 13 to 23% by weight of natural rubber, and calcium carbonate (CaCO 3 ) 13 ~ 23% by weight, 1 ~ 10% by weight of TITANIUM DIOXIDE, 1 ~ 10% by weight of propylene glycol (PROPYLENE GLYCOL) Water-soluble acrylic rubber-based intermediate paint applied at a thickness of 0.5 ~ 2mm Intermediate paint application step (S40);
On the cured water-soluble acrylic rubber-based intermediate paint, 46 to 66% by weight of water, 25 to 36% by weight of methyl methacrylate-ethyl acrylic acid copolymer (METHYL METHACRYLATE-ETHYL ACRYLATE COPOLYMER), and 5 to 25% by weight of titanium dioxide (TITANIUM DIOXIDE) 20 to 80 parts by weight of the subject matter comprising; and 20 to 80 parts by weight of a curing agent containing hexamethylene diisocyanate (HEXAMETHYLENE DISOCYANATE), an aliphatic isocyanate; a water-soluble polyurethane topcoat application step (S50) in which a two-component water-soluble polyurethane paint consisting of an aliphatic isocyanate is applied to a thickness of 30 to 90㎛ );
An eco-friendly composite waterproofing coating method characterized in that it is carried out in the following order.
상기 아크릴 에멀젼 하도도료 도포단계(S20)에서 도포되는 수용성 아크릴 에멀젼 프라이머는 고형분 함량 25 ~ 35w%의 아크릴 에멀젼(ACRYL EMULSION)과 물을 1 : 2~4배의 부피비로 희석하여 피도면에 도포하고 상온에서 2 ~ 3시간 동안 양생시키는 것을 특징으로 하는 친환경 복합방수 도장방법.According to paragraph 2,
The water-soluble acrylic emulsion primer applied in the acrylic emulsion basecoat application step (S20) is diluted with an acrylic emulsion (ACRYL EMULSION) with a solid content of 25 to 35 w% and water at a volume ratio of 1:2 to 4 times, applied to the surface to be coated, and cooled at room temperature. An eco-friendly composite waterproofing coating method characterized by curing for 2 to 3 hours.
상기 탄성무기질 도막방수제 도포단계(S30)에서 사용되는 무기질 분말재료는 규사(SILICA SAND) 55 ~ 65중량%, 탄산칼슘(CaCO3) 25 ~ 35중량%, 포틀랜드 시멘트(PORTLAND CEMENT) 5 ~ 15중량%로 구성되는 것을 특징으로 하는 친환경 복합방수 도장방법.According to paragraph 2,
The inorganic powder materials used in the elastic inorganic film waterproofing agent application step (S30) include 55 to 65% by weight of silica sand, 25 to 35% by weight of calcium carbonate (CaCO 3 ), and 5 to 15% by weight of Portland cement. An eco-friendly composite waterproofing coating method characterized by consisting of %.
상기 아크릴 고무계 중도도료 도포단계(S40)는 수용성 아크릴 고무계 중도도료를 1 ~ 3회 도포하거나, 또는 수용성 아크릴 고무계 중도도료를 1차 도포하고 망사, 직물, 부직포 중에서 선택된 어느 1종의 섬유시트(fiber sheet)를 부착시킨 후 상기 수용성 아크릴 고무계 중도도료를 2차 도포하는 것을 특징으로 하는 친환경 복합방수 도장방법.According to paragraph 2,
The acrylic rubber-based intermediate paint application step (S40) involves applying a water-soluble acrylic rubber-based intermediate paint 1 to 3 times, or applying a water-soluble acrylic rubber-based intermediate paint first and applying one type of fiber sheet (fiber) selected from mesh, fabric, and non-woven fabric. An eco-friendly composite waterproofing coating method characterized by secondary application of the water-soluble acrylic rubber-based intermediate paint after attaching a sheet).
상기 수용성 폴리우레탄 상도도료 도포단계(S50)에서 사용되는 2액형 수용성 폴리우레탄 도료는 고형분 함량 40 ~ 60w%, 비중 1.36 ~ 1.42, 점도 20 ~ 25Poise(25℃) 범위로 형성되는 것을 특징으로 하는 친환경 복합방수 도장방법.According to paragraph 2,
The two-component water-soluble polyurethane paint used in the water-soluble polyurethane topcoat application step (S50) is eco-friendly, characterized in that it is formed in the range of solid content of 40 to 60 w%, specific gravity of 1.36 to 1.42, and viscosity of 20 to 25 Poise (25°C). Complex waterproofing coating method.
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