KR101377488B1 - Coating composition for fuel tank steel sheet, fuel tank steel sheet using the coating composition and method for manufacturing the fuel tank steel sheet - Google Patents
Coating composition for fuel tank steel sheet, fuel tank steel sheet using the coating composition and method for manufacturing the fuel tank steel sheet Download PDFInfo
- Publication number
- KR101377488B1 KR101377488B1 KR1020110126730A KR20110126730A KR101377488B1 KR 101377488 B1 KR101377488 B1 KR 101377488B1 KR 1020110126730 A KR1020110126730 A KR 1020110126730A KR 20110126730 A KR20110126730 A KR 20110126730A KR 101377488 B1 KR101377488 B1 KR 101377488B1
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- titanium
- acrylic resin
- steel sheet
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 50
- 239000010959 steel Substances 0.000 title claims abstract description 50
- 239000002828 fuel tank Substances 0.000 title claims abstract description 30
- 239000008199 coating composition Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 39
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 39
- 150000002736 metal compounds Chemical class 0.000 claims abstract description 28
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 24
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 23
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 229910000077 silane Inorganic materials 0.000 claims abstract description 22
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 19
- 238000001035 drying Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 150000001336 alkenes Chemical class 0.000 claims description 13
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 13
- 238000007747 plating Methods 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 8
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 claims description 8
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 8
- 239000013557 residual solvent Substances 0.000 claims description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 239000005977 Ethylene Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- RYSXWUYLAWPLES-MTOQALJVSA-N (Z)-4-hydroxypent-3-en-2-one titanium Chemical compound [Ti].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O RYSXWUYLAWPLES-MTOQALJVSA-N 0.000 claims description 4
- IHEDBVUTTQXGSJ-UHFFFAOYSA-M 2-[bis(2-oxidoethyl)amino]ethanolate;titanium(4+);hydroxide Chemical compound [OH-].[Ti+4].[O-]CCN(CC[O-])CC[O-] IHEDBVUTTQXGSJ-UHFFFAOYSA-M 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- HKJYVRJHDIPMQB-UHFFFAOYSA-N propan-1-olate;titanium(4+) Chemical compound CCCO[Ti](OCCC)(OCCC)OCCC HKJYVRJHDIPMQB-UHFFFAOYSA-N 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 claims description 4
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical group CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 4
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 claims description 3
- UDUKMRHNZZLJRB-UHFFFAOYSA-N triethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OCC)(OCC)OCC)CCC2OC21 UDUKMRHNZZLJRB-UHFFFAOYSA-N 0.000 claims description 2
- ZXPDYFSTVHQQOI-UHFFFAOYSA-N diethoxysilane Chemical compound CCO[SiH2]OCC ZXPDYFSTVHQQOI-UHFFFAOYSA-N 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 16
- 230000007797 corrosion Effects 0.000 abstract description 16
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- -1 2- (3,4-epoxycyclohexyl) ethyl Chemical group 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910007567 Zn-Ni Inorganic materials 0.000 description 2
- 229910007614 Zn—Ni Inorganic materials 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910018098 Ni-Si Inorganic materials 0.000 description 1
- 229910018529 Ni—Si Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- OTARVPUIYXHRRB-UHFFFAOYSA-N diethoxy-methyl-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](C)(OCC)CCCOCC1CO1 OTARVPUIYXHRRB-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000002105 nanoparticle Chemical class 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- 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
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- 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
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- 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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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/156—Heterocyclic compounds having oxygen in the ring having two oxygen atoms in the ring
- C08K5/1575—Six-membered rings
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5435—Silicon-containing compounds containing oxygen containing oxygen in a ring
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- 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
- C09D5/08—Anti-corrosive paints
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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- 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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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
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Abstract
내식성과 밀착성이 우수한 연료탱크 강판용 피막 조성물, 이를 이용한 연료탱크 강판 및 그 제조 방법에 대하여 개시한다.
본 발명에 따른 연료탱크 강판용 피막 조성물은 수용성 올레핀계 아크릴 수지 2.5~7.5중량%, 실리카 0.1~2.5중량%, 금속화합물 0.1~0.5중량%, 가교제 1~5중량%, 실란 0.1~2중량% 및 잔량의 용매를 포함하는 것을 특징으로 한다. The coating composition for fuel tank steel plate excellent in corrosion resistance and adhesiveness, a fuel tank steel plate using the same, and its manufacturing method are disclosed.
The film composition for fuel tank steel sheet according to the present invention is 2.5 to 7.5% by weight of water-soluble olefinic acrylic resin, 0.1 to 2.5% by weight of silica, 0.1 to 0.5% by weight of metal compound, 1 to 5% by weight of crosslinking agent, 0.1 to 2% by weight of silane and It is characterized by containing a residual amount of solvent.
Description
본 발명은 연료탱크 강판 제조 기술에 관한 것으로, 보다 상세하게는 내식성 및 밀착성이 우수한 연료탱크 강판용 피막 조성물, 이를 이용한 연료탱크 강판 및 그 제조 방법에 관한 것이다.
The present invention relates to a fuel tank steel sheet manufacturing technology, and more particularly to a fuel tank steel sheet coating composition excellent in corrosion resistance and adhesion, a fuel tank steel sheet using the same and a method of manufacturing the same.
연료탱크 강판은 가솔린 등의 연료를 저장하는 탱크를 제조하기 위한 강판을 말한다. The fuel tank steel plate refers to a steel plate for manufacturing a tank for storing fuel such as gasoline.
이러한 연료탱크 강판은 높은 내식성 및 가솔린과 같은 연료에 대한 내구성을 요구한다. Such fuel tank steel sheets require high corrosion resistance and durability against fuels such as gasoline.
종래에는 주로 강판의 표면에 크로메이트 처리를 하여 하지층을 형성한 후, 그 위에 수지층을 형성하였다. 그러나, 크롬 성분은 인체 유해 물질로서 현재는 그 사용이 규제되고 있다.Conventionally mainly on the surface of steel sheet After the chromate treatment was carried out to form the base layer, a resin layer was formed thereon. However, the chromium component is a human hazardous substance and its use is currently regulated.
따라서, 크롬 성분을 포함하지 않으면서도 높은 내식성을 확보할 수 있는 기술이 요구된다. Therefore, there is a need for a technique capable of securing high corrosion resistance without containing a chromium component.
본 발명에 관련된 배경기술로는 대한민국 특허공개공보 제10-2008-0086469호(2008.9.25. 공개)가 있다.
Background art related to the present invention is Korea Patent Publication No. 10-2008-0086469 (2008.9.25. Publication).
본 발명의 목적은 크롬 성분을 포함하지 않으면서도 1회 코팅으로도 높은 내식성 및 밀착성을 나타낼 수 있는 연료탱크 강판용 피막 조성물을 제공하는 것이다.It is an object of the present invention to provide a coating composition for a fuel tank steel sheet, which does not contain a chromium component and can exhibit high corrosion resistance and adhesion even with a single coating.
본 발명의 다른 목적은 내식성 및 밀착성이 우수한 연료탱크 강판을 제공하는 것이다.Another object of the present invention is to provide a fuel tank steel sheet excellent in corrosion resistance and adhesion.
본 발명의 또 다른 목적은 내식성 및 밀착성이 우수한 연료탱크 강판을 제조하는 방법을 제공하는 것이다.
Still another object of the present invention is to provide a method for producing a fuel tank steel sheet excellent in corrosion resistance and adhesion.
상기 하나의 목적을 달성하기 위한 본 발명의 실시예에 따른 연료탱크 강판용 피막 조성물은 수용성 올레핀계 아크릴 수지, 실리카, 금속화합물, 가교제, 실란 및 용매를 포함하고, 고형분 함량이 3.8~17.5중량%인 것을 특징으로 한다. The film composition for fuel tank steel sheet according to an embodiment of the present invention for achieving the above object comprises a water-soluble olefinic acrylic resin, silica, a metal compound, a crosslinking agent, a silane and a solvent, the solid content of 3.8 ~ 17.5% by weight It is characterized by.
이때, 상기 피막 조성물은 수용성 올레핀계 아크릴 수지 2.5~7.5중량%, 실리카 0.1~2.5중량%, 금속화합물 0.1~0.5중량%, 가교제 1~5중량%, 실란 0.1~2중량% 및 잔량의 용매를 포함할 수 있다.
At this time, the coating composition is 2.5 to 7.5% by weight of water-soluble olefinic acrylic resin, 0.1 to 2.5% by weight of silica, 0.1 to 0.5% by weight of metal compound, 1 to 5% by weight of crosslinking agent, 0.1 to 2% by weight of silane and residual solvent It may include.
상기 다른 목적을 달성하기 위한 본 발명의 실시예에 따른 연료탱크 강판은 베이스 강판; 상기 베이스 강판 표면에 형성되는 피막;을 포함하고, 상기 피막은 수용성 올레핀계 아크릴 수지, 실리카, 금속화합물, 가교제 및 실란을 포함하는 것을 특징으로 한다.
Fuel tank steel plate according to an embodiment of the present invention for achieving the above another object is a base steel sheet; And a coating formed on the surface of the base steel sheet, wherein the coating comprises a water-soluble olefinic acrylic resin, silica, a metal compound, a crosslinking agent, and a silane.
상기 또 다른 목적을 달성하기 위한 본 발명의 실시예에 따른 연료탱크 강판 제조 방법은 수용성 올레핀계 아크릴 수지, 실리카, 금속화합물, 가교제, 실란 및 용매를 포함하고, 고형분 함량이 3.8~17.5중량%인 조성물을 베이스 강판에 도포하는 단계; 및 상기 도포된 조성물을 180~230℃에서 건조하여, 베이스 강판 표면에 피막을 형성하는 단계;를 포함하는 것을 특징으로 한다.
Fuel tank steel sheet manufacturing method according to an embodiment of the present invention for achieving the above another object comprises a water-soluble olefin-based acrylic resin, silica, a metal compound, a crosslinking agent, a silane and a solvent, the solid content is 3.8 ~ 17.5% by weight Applying the composition to a base steel sheet; And drying the applied composition at 180 to 230 ° C. to form a film on the surface of the base steel sheet.
본 발명에 따른 피막 조성물을 이용하여 제조된 피막은 크롬을 함유하지 않으면서도 내식성이 우수하며, 또한 연료탱크 강판에의 밀착성이 우수한 장점이 있다.
The film produced using the film composition according to the present invention has an advantage of excellent corrosion resistance without containing chromium and excellent adhesion to the fuel tank steel plate.
도 1은 본 발명의 실시예에 따른 연료탱크 강판을 개략적으로 나타낸 것이다.
도 2는 본 발명의 실시예에 따른 연료탱크 강판 제조 방법을 개략적으로 나타낸 것이다.
1 schematically shows a fuel tank steel plate according to an embodiment of the present invention.
Figure 2 schematically shows a fuel tank steel plate manufacturing method according to an embodiment of the present invention.
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나, 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.
이하 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 따른 연료탱크 강판용 피막 조성물, 이를 이용한 연료탱크 강판 및 그 제조 방법에 관하여 상세히 설명하기로 한다.
Hereinafter, a coating composition for a fuel tank steel sheet according to a preferred embodiment of the present invention, a fuel tank steel sheet using the same, and a manufacturing method thereof will be described in detail with reference to the accompanying drawings.
연료탱크 강판용 피막 조성물은 수용성 올레핀계 아크릴 수지, 실리카, 금속화합물, 가교제, 실란 및 용매를 포함하고, 고형분 함량이 3.8~17.5중량%이다. The film composition for fuel tank steel plate contains water-soluble olefinic acrylic resin, a silica, a metal compound, a crosslinking agent, a silane, and a solvent, and has solid content of 3.8-17.5 weight%.
이때, 피막 조성물은 수용성 올레핀계 아크릴 수지 2.5~7.5중량%, 실리카 0.1~2.5중량%, 금속화합물 0.1~0.5중량%, 가교제 1~5중량%, 실란 0.1~2중량% 및 잔량의 용매를 포함하는 것이 보다 바람직하다. At this time, the coating composition contains 2.5 to 7.5% by weight of water-soluble olefinic acrylic resin, 0.1 to 2.5% by weight of silica, 0.1 to 0.5% by weight of metal compound, 1 to 5% by weight of crosslinking agent, 0.1 to 2% by weight of silane and residual solvent. It is more preferable to.
이하, 본 발명에 따른 피막 조성물에 포함되는 각 성분의 역할 및 함량에 대하여 설명하기로 한다.
Hereinafter, the role and content of each component included in the coating composition according to the present invention will be described.
수용성 올레핀계 아크릴 수지Water-soluble olefin acrylic resin
본 발명에서 수용성 올레핀계 아크릴 수지는 바인더의 역할을 한다. In the present invention, the water-soluble olefinic acrylic resin serves as a binder.
수용성 올레핀계 아크릴 수지는 아크릴산 및 에틸렌으로부터 얻어질수 있다. 이 경우, 아크릴산 및 에틸렌을 에탄올아민 용액과 같은 아민계 용액에 투입하여 산중화 그룹을 형성하고, 이후 트리에틸아민과 같은 아민계 중화제를 투입하여 중화함으로써 제조되는 것을 제시할 수 있다.
Water-soluble olefinic acrylic resins can be obtained from acrylic acid and ethylene. In this case, acrylic acid and ethylene may be introduced into an amine-based solution such as an ethanolamine solution to form an acid neutralizing group, and then, prepared by neutralizing by adding an amine-based neutralizer such as triethylamine.
수용성 올레핀계 아크릴 수지는 수평균 분자량이 17,000~70,000인 것이 바람직하다. 수용성 올레핀계 아크릴 수지의 수평균 분자량이 17,000 미만일 경우, 충분한 부착성을 발휘하기 어려워질 수 있다. 반대로, 수용성 올레핀계 아크릴 수지의 수평균 분자량이 70,000을 초과하는 경우, 피막 형성이 잘 되지 않으며, 점도가 높아져 롤 마크(Roll Mark)가 발생할 수 있다. It is preferable that the water-soluble olefin acrylic resin has a number average molecular weight of 17,000-70,000. When the number average molecular weight of the water-soluble olefin acrylic resin is less than 17,000, it may be difficult to exhibit sufficient adhesion. On the contrary, when the number average molecular weight of the water-soluble olefin acrylic resin is more than 70,000, the film is not formed well, the viscosity is high, and a roll mark may occur.
또한, 수용성 올레핀계 아크릴 수지는 pH 8~10인 것을 이용하는 것이 바람직하다. 수용성 올레핀계 아크릴 수지의 pH가 상기 범위를 벗어날 경우에는 수분산성이 저하될 수 있다. Moreover, it is preferable to use the thing of pH 8-10 as a water-soluble olefin type acrylic resin. When the pH of the water-soluble olefin acrylic resin is out of the above range, the water dispersibility may be lowered.
상기 수용성 올레핀계 아크릴 수지는 조성물 전체 중량의 2.5~7.5중량%로 첨가되는 것이 바람직하다. 수용성 올레핀계 아크릴 수지의 함량이 2.5중량% 미만인 경우, 바인더로서 충분히 작용할 수 없어, 피막의 밀착성이 불충분할 수 있다. 반대로, 수용성 올레핀계 아크릴 수지의 함량이 7.5중량%를 초과하는 경우, 피막의 내식성이 저하될 수 있다.
The water-soluble olefin acrylic resin is preferably added at 2.5 to 7.5% by weight of the total weight of the composition. When the content of the water-soluble olefin acrylic resin is less than 2.5% by weight, it may not function sufficiently as a binder, and the adhesion of the film may be insufficient. On the contrary, when the content of the water-soluble olefin acrylic resin exceeds 7.5% by weight, the corrosion resistance of the coating may be lowered.
실리카Silica
실리카는 피막의 내식성을 향상시키는 방청제로서 작용한다. Silica acts as a rust inhibitor to improve the corrosion resistance of the film.
이러한 실리카는 조성물 전체 중량의 0.1~2.5중량%로 첨가되는 것이 바람직하다. 실리카의 함량이 0.1중량% 미만인 경우, 그 첨가 효과가 불충분하다. 반대로, 실리카의 함량이 2.5중량%를 초과하면 더 이상의 방청 효과 상승 없이 용액 안정성만 저하될 수 있다.
Such silica is preferably added at 0.1 to 2.5% by weight of the total weight of the composition. If the content of silica is less than 0.1% by weight, the effect of addition thereof is insufficient. On the contrary, when the content of silica exceeds 2.5% by weight, only solution stability may be lowered without further increasing the antirust effect.
금속화합물Metal compound
본 발명에서, 금속화합물은 피막의 용접성 등의 물성 향상을 위하여 첨가된다. 이러한 금속화합물은 규소(Si), 알루미늄(Al), 망간(Mn), 티타늄(Ti), 세륨(Ce), 아연(Zn), 몰리브덴(Mo), 바나듐(V) 및 지르코늄(Zr) 중에서 1종 이상의 금속을 포함하는 것을 이용할 수 있다. 금속화합물의 형태는 금속산화물 등이 될 수 있다. In the present invention, the metal compound is added to improve physical properties such as weldability of the film. The metal compound may be selected from silicon (Si), aluminum (Al), manganese (Mn), titanium (Ti), cerium (Ce), zinc (Zn), molybdenum (Mo), vanadium (V), and zirconium (Zr). The thing containing a metal more than a species can be used. The form of the metal compound may be a metal oxide or the like.
이때, 금속화합물은 조성물 내에서 침강되는 것보다는, 물에서 염 또는 나노 크기의 콜로이드 형태로 존재하는 것이 보다 바람직하다. 이는 금속화합물의 성분, 입도 조절 등을 통하여 이루어질 수 있다. At this time, the metal compound is more preferably present in the form of a salt or nano-sized colloid in water, rather than settling in the composition. This can be done through the composition of the metal compound, particle size control, and the like.
상기 금속화합물은 조성물 전체 중량의 0.1~0.5중량%로 함유되는 것이 바람직하다. 금속화합물의 함량이 0.1중량% 미만일 경우, 가교 촉매로서의 역할이 불충분해질 수 있다. 반대로, 금속화합물의 함량이 0.5중량%를 초과하는 경우, 물 등의 용매에 녹아나거나, 스웰링(swelling) 현상이 발생할 수 있다.
The metal compound is preferably contained in 0.1 to 0.5% by weight of the total weight of the composition. When the content of the metal compound is less than 0.1% by weight, the role as a crosslinking catalyst may be insufficient. On the contrary, when the content of the metal compound exceeds 0.5% by weight, it may be dissolved in a solvent such as water or a swelling phenomenon may occur.
가교제Cross-linking agent
가교제는 실란 등의 가교를 촉진하는 역할을 한다. The crosslinking agent plays a role of promoting crosslinking of silane and the like.
이러한 가교제는 티타늄 부톡사이드, 티타늄 에톡사이드, 티타늄 프로폭사이드, 티타늄 테트라아이소프로폭사이드, 티타늄 테트라부톡사이드, 트리에탄올아민티타네이트, 티타늄 아세틸아세토네이트 등과 같은 티타늄 화합물이 이용될 수 있으나, 반드시 이에 제한되는 것은 아니다. Such a crosslinking agent may be a titanium compound such as titanium butoxide, titanium ethoxide, titanium propoxide, titanium tetraisopropoxide, titanium tetrabutoxide, triethanolamine titanate, titanium acetylacetonate, and the like, but is not limited thereto. It doesn't happen.
상기 가교제는 조성물 전체 중량의 1~5중량%로 첨가되는 것이 바람직하다. 가교제의 첨가량이 1중량% 미만인 경우, 그 첨가 효과가 불충분하다. 반대로, 가교제의 첨가량이 5중량%를 초과하는 경우, 더 이상의 효과없이 용액안정성만 저하될 수 있다.
The crosslinking agent is preferably added in 1 to 5% by weight of the total weight of the composition. When the addition amount of a crosslinking agent is less than 1 weight%, the addition effect is inadequate. On the contrary, when the amount of the crosslinking agent added exceeds 5% by weight, only solution stability may be lowered without further effects.
실란Silane
본 발명에서, 실란은 피막의 밀착성을 향상시키는 역할을 한다. In the present invention, the silane serves to improve the adhesion of the coating.
이러한 실란은 3-글리시독시프로필 트리메톡시실란, 2-(3,4-에폭시사이클로헥실)에틸 트리메톡시실란, 2-(3,4-에폭시사이클로헥실)에틸 트리에톡시실란, 및 3-글리시독시프로필메틸 디에톡시실란 중에서 1종 이상을 포함할 수 있다.
Such silanes include 3-glycidoxypropyl trimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyl trimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyl triethoxysilane, and 3 It may include one or more of the glycidoxy propyl methyl diethoxysilane.
상기 실란은 조성물 전체 중량의 0.1~2중량%로 첨가되는 것이 바람직하다. 실란의 첨가량이 0.1중량% 미만일 경우, 피막의 밀착성이 불충분해질 수 있다. 반대로, 실란의 첨가량이 2중량%를 초과하는 경우, 반응 이후, 잔존물이 발생하여 도막 물성에 악영향을 미치며, 용액 안정성을 저하시킬 수 있다.
The silane is preferably added at 0.1 to 2% by weight of the total weight of the composition. When the amount of silane added is less than 0.1% by weight, the adhesion of the film may be insufficient. On the contrary, when the amount of silane added exceeds 2% by weight, after the reaction, residues are generated, which adversely affects the coating film properties and may reduce solution stability.
상술한, 수용성 올레핀계 아크릴 수지, 실리카, 금속화합물, 가교제 및 실란은 고형분에 해당하며, 조성물 전체 중량의 3.8~17.5중량%가 된다. 상기 고형분 이외의 나머지는 물과 같은 용매로 이루어질 수 있다.
The above-mentioned water-soluble olefinic acrylic resin, silica, a metal compound, a crosslinking agent, and a silane correspond to solid content, and are 3.8-17.5 weight% of the total weight of a composition. The remainder other than the solid may be made of a solvent such as water.
도 1은 본 발명의 실시예에 따른 연료탱크 강판을 개략적으로 나타낸 것이다.1 schematically shows a fuel tank steel plate according to an embodiment of the present invention.
도 1을 참조하면, 본 발명의 실시예에 따른 연료탱크 강판은 베이스 강판(110), 도금층(115) 및 피막(120)을 포함한다. Referring to FIG. 1, a fuel tank steel sheet according to an embodiment of the present invention includes a
베이스 강판(110)은 열연강판 혹은 냉연강판을 이용할 수 있다.The
도금층(115)은 베이스 강판(110) 상에 형성되어 강판의 내식성을 향상시킨다. The
도금층은 용융도금, 전기도금 등의 방식으로 형성될 수 있다. 또한, 도금층(115)은 Zn, Ni, Zn-Ni, Zn-Ni-Si 등과 같이, 아연, 아연합금, 니켈 및 니켈합금 중 1종 이상을 포함하여 형성될 수 있다. The plating layer may be formed by hot dip plating, electroplating, or the like. In addition, the
피막(120)은 도금층(115) 상에 형성된다. 이때, 피막(120)은 수용성 올레핀계 아크릴 수지, 실리카, 금속화합물, 가교제 및 실란을 포함할 수 있다. 이러한 피막은 수용성 올레핀계 아크릴 수지 2.5~7.5중량%, 실리카 0.1~2.5중량%, 금속화합물 0.1~0.5중량%, 가교제 1~5중량%, 실란 0.1~2중량% 및 잔량의 용매를 포함하여, 고형분 함량이 3.8~17.5중량%인 조성물의 고형분으로 형성될 수 있다. The
이때, 피막(120)은 건조 후 부착량이 100~1100mg/m2인 것이 보다 바람직하다. 건조 후 부착량은 조성물의 도포양 등의 조절을 통하여 제어 가능하다. 건조 후 부착량이 100 mg/m2 미만인 경우, 피막의 내식성이 불충분할 수 있다. 반대로, 건조 후 부착량이 1100mg/m2를 초과하는 경우, 베이스 강판에의 밀착성이 불충분해질 수 있으며 용접시 흄이 발생하거나 용접이 어려워지는 등 용접성이 저하될 수 있다.
At this time, it is more preferable that the
도 2는 본 발명의 실시예에 따른 연료탱크 강판 제조 방법을 개략적으로 나타낸 것이다. Figure 2 schematically shows a fuel tank steel plate manufacturing method according to an embodiment of the present invention.
도 2를 참조하면, 도시된 연료탱크 강판 제조 방법은 피막 조성물 도포 단계(S210) 및 건조 단계(S220)를 포함한다. Referring to FIG. 2, the illustrated fuel tank steel plate manufacturing method includes a coating composition applying step S210 and a drying step S220.
피막 조성물 도포 단계(S210)는 수용성 올레핀계 아크릴 수지, 실리카, 금속화합물, 가교제, 실란 및 용매를 포함하고, 고형분 함량이 3.8~17.5중량%인 피막 조성물을 베이스 강판 표면에 도포한다. The coating composition coating step (S210) includes a water-soluble olefinic acrylic resin, silica, a metal compound, a crosslinking agent, a silane and a solvent, and applies a coating composition having a solid content of 3.8 to 17.5 wt% to the surface of the base steel sheet.
보다 구체적으로 피막 조성물은 수용성 올레핀계 아크릴 수지 2.5~7.5중량%, 실리카 0.1~2.5중량%, 금속화합물 0.1~0.5중량%, 가교제 1~5중량%, 실란 0.1~2중량% 및 잔량의 용매를 포함할 수 있다.More specifically, the coating composition may include 2.5 to 7.5% by weight of water-soluble olefinic acrylic resin, 0.1 to 2.5% by weight of silica, 0.1 to 0.5% by weight of a metal compound, 1 to 5% by weight of a crosslinking agent, 0.1 to 2% by weight of silane, and a residual solvent. It may include.
베이스 강판에는 아연, 아연합금, 니켈, 니켈합금 등을 포함하는 도금층이 형성되어 있을 수 있다. In the base steel sheet, a plating layer including zinc, zinc alloy, nickel, nickel alloy, or the like may be formed.
피막 조성물의 도포는 롤 코팅 방식, 스프레이 방식 등 다양한 방식이 이용될 수 있다.
The coating composition may be applied in various ways such as a roll coating method and a spray method.
건조 단계(S220)에서는 도포된 조성물을 건조하여, 연료탱크 강판 표면에 피막을 형성한다. In the drying step (S220), the coated composition is dried to form a film on the surface of the fuel tank steel plate.
건조는 180~230℃에서 실시되는 것이 바람직하다. 건조 온도가 180℃ 미만일 경우, 수용성 올레핀계 아크릴 수지와 금속화합물의 반응이 충분치 않아 피막의 내식성이 저하될 수 있다. 반대로, 건조 온도가 230℃를 초과하는 경우, 조성물에 첨가된 무기물이 과경화되어 건조 후 도막이 Brittle해질 수 있으며, 또한, 수냉시 도막이 박리될 수 있으며, 또한 도막 내에 미세 크랙이 발생할 수 있다. It is preferable to perform drying at 180-230 degreeC. When the drying temperature is less than 180 ° C., the reaction between the water-soluble olefinic acrylic resin and the metal compound may not be sufficient, which may lower the corrosion resistance of the coating. On the contrary, when the drying temperature exceeds 230 ° C., the inorganic material added to the composition may be hardened so that the coating film may be Brittle after drying, and the coating film may be peeled off during water cooling, and fine cracks may occur in the coating film.
한편, 건조 전 160℃ 정도의 온도에서 예비 건조하는 과정이 더 포함될 수 있다. 또한, 건조 후, 공냉 또는 수냉 방식으로 냉각이 이루어질 수 있다.
On the other hand, pre-drying at a temperature of about 160 ℃ before drying may be further included. In addition, after drying, cooling may be performed by air cooling or water cooling.
실시예Example
이하, 본 발명의 바람직한 실시예를 통해 본 발명의 구성 및 작용을 더욱 상세히 설명하기로 한다. 다만, 이는 본 발명의 바람직한 예시로 제시된 것이며 어떠한 의미로도 이에 의해 본 발명이 제한되는 것으로 해석될 수는 없다. Hereinafter, the configuration and operation of the present invention through the preferred embodiment of the present invention will be described in more detail. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.
여기에 기재되지 않은 내용은 이 기술 분야에서 숙련된 자이면 충분히 기술적으로 유추할 수 있는 것이므로 그 설명을 생략하기로 한다.
Details that are not described herein will be omitted since those skilled in the art can sufficiently infer technically.
1. 시편의 제조1. Preparation of specimens
실시예 1Example 1
수평균 분자량이 25,000, pH 9.0인 수용성 올레핀계 아크릴 수지 5.0중량%, 실리카 1.0중량%, 이산화티타늄 0.3중량%, 티타늄 에톡사이드 3중량%, 3-글리시독시프로필 트리메톡시실란 1.5중량% 및 잔량의 물을 포함하는 피막 조성물을 마련하였다.
5.0 weight% of water-soluble olefinic acrylic resin with a number average molecular weight of 25,000, pH 9.0, 1.0 weight% of silica, 0.3 weight% of titanium dioxide, 3 weight% of titanium ethoxide, 1.5 weight% of 3-glycidoxypropyl trimethoxysilane, and The coating composition containing the residual amount of water was prepared.
실시예2Example 2
수평균 분자량이 40,000, pH 8.5인 수용성 올레핀계 아크릴 수지 7.0중량%, 실리카 2.0중량%, 이산화지르코늄 0.2 중량%, 티타늄 에톡사이드 4중량%, 2-(3,4-에폭시사이클로헥실)에틸 트리메톡시실란 0.5중량% 및 잔량의 물을 포함하는 피막 조성물을 제조하였다.
7.0% by weight of water-soluble olefinic acrylic resin having a number average molecular weight of 40,000 and pH 8.5, 2.0% by weight of silica, 0.2% by weight of zirconium dioxide, 4% by weight of titanium ethoxide, 2- (3,4-epoxycyclohexyl) ethyl trimer A coating composition was prepared comprising 0.5% by weight of oxysilane and the balance of water.
비교예1Comparative Example 1
수평균 분자량이 1,500인 우레탄 수지 20중량%, 실리케이트 20중량%, 인산에스테르 3중량%, 티타늄 에톡사이드 4중량%, 2-(3,4-에폭시사이클로헥실)에틸 트리메톡시실란 2중량% 및 잔량의 물을 포함하는 피막 조성물을 제조하였다.
20% by weight urethane resin having a number average molecular weight of 1500, 20% by weight silicate, 3% by weight phosphate ester, 4% by weight titanium ethoxide, 2% by weight 2- (3,4-epoxycyclohexyl) ethyl trimethoxysilane and The coating composition containing the residual amount of water was prepared.
비교예2Comparative Example 2
수평균 분자량이 25,000, pH 9.0인 수용성 올레핀계 아크릴 수지 2.0중량%, 실리카 1.0중량%, 이산화티타늄 0.3중량%, 티타늄 에톡사이드 3중량%, 3-글리시독시프로필 트리메톡시실란 1.5중량% 및 잔량의 물을 포함하는 피막 조성물을 마련하였다.
2.0 wt% of water-soluble olefinic acrylic resin having a number average molecular weight of 25,000, pH 9.0, 1.0 wt% of silica, 0.3 wt% of titanium dioxide, 3 wt% of titanium ethoxide, 1.5 wt% of 3-glycidoxypropyl trimethoxysilane, and The coating composition containing the residual amount of water was prepared.
상기 실시예 1~2 및 비교예 1~2에 따른 조성물을 Zn-Ni 도금 강판 시편에 도포한 후, 인덕션 오븐에서 190℃에서 건조하였다.
The compositions according to Examples 1 and 2 and Comparative Examples 1 and 2 were applied to Zn-Ni plated steel sheet specimens, and then dried at 190 ° C. in an induction oven.
2. 물성 평가 방법 및 결과2. Property Evaluation Method and Result
(1) 내식성 (1) Corrosion resistance
내식성 평가는 5중량% NaCl 용액을 이용하여 35℃에서 염수분무를 한 후, 1,000시간 경과후 적청 발생 여부로 평가하였다.
Corrosion resistance evaluation was performed by spraying brine at 35 ℃ using 5% by weight of NaCl solution, it was evaluated by the occurrence of red blue after 1,000 hours.
(2) 밀착성(2) Adhesion
밀착성은 100℃ 비등수에 30분간 시편을 침적한 후 꺼내어 5분간 방치한 후 테이프 박리 여부로 평가하였다.
The adhesion was evaluated by dipping the specimen in 100 ° C. boiling water for 30 minutes, then taking it out and leaving it for 5 minutes.
(3) 물성평가 결과(3) Property evaluation result
실시예 1~2 및 비교예 1~2에 따른 시편의 물성평가 결과를 표 1에 나타내었다.Table 1 shows the physical property evaluation results of the specimens according to Examples 1 and 2 and Comparative Examples 1 and 2.
[표 1][Table 1]
표 1을 참조하면, 실시예 1~2에 따른 시편의 경우, 내식성 및 밀착성 모두 합격점을 나타내었다. 그러나, 비교예 1의 경우, 적청이 일부 발생하였으며, 비교예 2의 경우, 적청은 발생하지 않았으나 테이프 박리 테스트에서 테이프 박리가 발생하였다.
Referring to Table 1, in the case of the specimens according to Examples 1 to 2, both the corrosion resistance and adhesion showed a passing point. However, in the case of Comparative Example 1, red blue was partially generated, and in Comparative Example 2, red blue was not generated, but tape peeling occurred in the tape peeling test.
이상에서는 본 발명의 실시예를 중심으로 설명하였으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 기술자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. Although the above description has been made with reference to the embodiments of the present invention, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible.
따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.
Accordingly, the true scope of protection of the present invention should be defined by the following claims.
110 : 베이스 강판
115 : 도금층
120 : 피막
S210 : 조성물 도포 단계
S220 : 건조 단계110: base steel plate
115: plating layer
120: film
S210: composition application step
S220: Drying Step
Claims (15)
상기 수용성 올레핀계 아크릴 수지는 수평균 분자량이 17,000~70,000이고, 상기 수용성 올레핀계 아크릴 수지는 pH 8~10이며,
상기 수용성 올레핀계 아크릴 수지는 아크릴산 및 에틸렌으로부터 얻어지고,
상기 금속화합물은 규소(Si), 알루미늄(Al), 세륨(Ce) 및 아연(Zn) 중에서 선택된 1종 이상의 금속을 포함하되, 물에서 염 또는 콜로이드 형태로 존재하고,
상기 가교제는 티타늄 부톡사이드, 티타늄 에톡사이드, 티타늄 프로폭사이드, 티타늄 테트라아이소프로폭사이드, 티타늄 테트라부톡사이드, 트리에탄올아민티타네이트 및 티타늄 아세틸아세토네이트 중 어느 하나인 것을 특징으로 하는 연료탱크 강판용 피막 조성물.
2.5 to 7.5% by weight of water-soluble olefinic acrylic resin, 0.1 to 2.5% by weight of silica, 0.1 to 0.5% by weight of metal compound, 1 to 5% by weight of crosslinking agent, 0.1 to 2% by weight of silane and residual solvent,
The water-soluble olefinic acrylic resin has a number average molecular weight of 17,000 to 70,000, and the water-soluble olefinic acrylic resin has a pH of 8 to 10,
The water-soluble olefin acrylic resin is obtained from acrylic acid and ethylene,
The metal compound includes at least one metal selected from silicon (Si), aluminum (Al), cerium (Ce), and zinc (Zn), and exists in salt or colloidal form in water.
The crosslinking agent is any one of titanium butoxide, titanium ethoxide, titanium propoxide, titanium tetraisopropoxide, titanium tetrabutoxide, triethanolamine titanate and titanium acetylacetonate. .
상기 실란은
3-글리시독시프로필 트리메톡시실란, 2-(3,4-에폭시사이클로헥실)에틸 트리메톡시실란, 2-(3,4-에폭시사이클로헥실)에틸 트리에톡시실란, 및 3-글리시독시프로필메틸 디에톡시실란 중에서 1종 이상을 포함하는 것을 특징으로 하는 연료탱크 강판용 피막 조성물.
6. The method of claim 5,
The silane is
3-glycidoxypropyl trimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyl trimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyl triethoxysilane, and 3-glyci A coating composition for fuel tank steel sheet, characterized in that it contains at least one of doxypropylmethyl diethoxysilane.
상기 베이스 강판 표면에 형성되되, 아연, 아연합금, 니켈 및 니켈합금 중 1종 이상으로 형성된 도금층; 및
상기 도금층 상에 형성되는 피막;을 포함하고,
상기 피막은 수용성 올레핀계 아크릴 수지 2.5~7.5중량%, 실리카 0.1~2.5중량%, 금속화합물 0.1~0.5중량%, 가교제 1~5중량%, 실란 0.1~2중량% 및 잔량의 용매를 포함하는 조성물의 고형분으로 형성되되, 건조 후 부착량이 100~1100mg/m2이고,
상기 수용성 올레핀계 아크릴 수지는 수평균 분자량이 17,000~70,000인 것이 이용되고, 상기 수용성 올레핀계 아크릴 수지는 pH 8~10인 것이 이용되며,
상기 수용성 올레핀계 아크릴 수지는 아크릴산 및 에틸렌으로부터 얻어지고,
상기 금속화합물은 규소(Si), 알루미늄(Al), 세륨(Ce) 및 아연(Zn) 중에서 선택된 1종 이상의 금속을 포함하되, 물에서 염 또는 콜로이드 형태로 존재하고,
상기 가교제는 티타늄 부톡사이드, 티타늄 에톡사이드, 티타늄 프로폭사이드, 티타늄 테트라아이소프로폭사이드, 티타늄 테트라부톡사이드, 트리에탄올아민티타네이트 및 티타늄 아세틸아세토네이트 중 어느 하나인 것을 특징으로 하는 연료탱크 강판.
Base steel plate;
A plating layer formed on the surface of the base steel sheet and formed of at least one of zinc, zinc alloy, nickel, and nickel alloy; And
And a coating film formed on the plating layer.
The film is a composition comprising 2.5 to 7.5% by weight of water-soluble olefinic acrylic resin, 0.1 to 2.5% by weight of silica, 0.1 to 0.5% by weight of metal compound, 1 to 5% by weight of crosslinking agent, 0.1 to 2% by weight of silane and residual solvent. It is formed as a solid content of, after drying the adhesion amount is 100 ~ 1100mg / m 2 ,
The water-soluble olefinic acrylic resin has a number average molecular weight of 17,000-70,000 is used, the water-soluble olefinic acrylic resin is used a pH of 8-10,
The water-soluble olefin acrylic resin is obtained from acrylic acid and ethylene,
The metal compound includes at least one metal selected from silicon (Si), aluminum (Al), cerium (Ce), and zinc (Zn), and exists in salt or colloidal form in water.
The crosslinking agent is a fuel tank steel plate, characterized in that any one of titanium butoxide, titanium ethoxide, titanium propoxide, titanium tetraisopropoxide, titanium tetrabutoxide, triethanolamine titanate and titanium acetylacetonate.
상기 도포된 조성물을 180~230℃에서 건조하여, 베이스 강판 표면에 피막을 형성하는 단계;를 포함하되,
상기 베이스 강판은 아연, 아연합금, 니켈 및 니켈합금 중 1종 이상을 포함하는 도금층이 형성되어 있으며, 상기 피막은 건조 후 부착량이 100~1100mg/m2이고,
상기 수용성 올레핀계 아크릴 수지는 수평균 분자량이 17,000~70,000인 것이 이용되고, 상기 수용성 올레핀계 아크릴 수지는 pH 8~10인 것이 이용되며,
상기 수용성 올레핀계 아크릴 수지는 아크릴산 및 에틸렌으로부터 얻어지고,
상기 금속화합물은 규소(Si), 알루미늄(Al), 세륨(Ce) 및 아연(Zn) 중에서 선택된 1종 이상의 금속을 포함하되, 물에서 염 또는 콜로이드 형태로 존재하고,
상기 가교제는 티타늄 부톡사이드, 티타늄 에톡사이드, 티타늄 프로폭사이드, 티타늄 테트라아이소프로폭사이드, 티타늄 테트라부톡사이드, 트리에탄올아민티타네이트 및 티타늄 아세틸아세토네이트 중 어느 하나인 것을 특징으로 하는 연료탱크 강판 제조 방법.2.5 to 7.5 wt% of water-soluble olefinic acrylic resin, 0.1 to 2.5 wt% of silica, 0.1 to 0.5 wt% of metal compound, 1 to 5 wt% of crosslinking agent, 0.1 to 2 wt% of silane and remaining amount of solvent Applying to; And
And drying the applied composition at 180 to 230 ° C. to form a coating on the surface of the base steel sheet.
The base steel sheet is formed with a plating layer containing one or more of zinc, zinc alloy, nickel and nickel alloy, the coating has a coating amount of 100 ~ 1100mg / m 2 after drying,
The water-soluble olefinic acrylic resin has a number average molecular weight of 17,000-70,000 is used, the water-soluble olefinic acrylic resin is used a pH of 8-10,
The water-soluble olefin acrylic resin is obtained from acrylic acid and ethylene,
The metal compound includes at least one metal selected from silicon (Si), aluminum (Al), cerium (Ce), and zinc (Zn), and exists in salt or colloidal form in water.
The crosslinking agent is any one of titanium butoxide, titanium ethoxide, titanium propoxide, titanium tetraisopropoxide, titanium tetrabutoxide, triethanolamine titanate and titanium acetylacetonate. .
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| CN104629570A (en) * | 2015-03-13 | 2015-05-20 | 江苏荣昌新材料科技有限公司 | High-performance water-based non-toxic anticorrosive paint and preparation method thereof |
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| KR101499352B1 (en) * | 2013-10-21 | 2015-03-05 | 현대제철 주식회사 | Organic-inorganic hybrid coating solution with excellent blackening resistance and method of manufacturing surface-treated steel sheet using the same |
| KR101696027B1 (en) * | 2014-08-28 | 2017-01-13 | 주식회사 포스코 | Composite resin coating composition for steel sheet of fuel tank with exellent seam weldability and anti-mold, coated steel sheet using the composition and the method for preparing the coated steel sheet |
| KR102065224B1 (en) * | 2017-12-22 | 2020-01-10 | 주식회사 포스코 | Solution composition for surface treating of steel sheet, steel sheet using the same, and manufacturing method of the same |
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