CN103980805B - Self-repair polyurethane (PU) residual rust paint with functions of transforming and stabilizing rust layers - Google Patents
Self-repair polyurethane (PU) residual rust paint with functions of transforming and stabilizing rust layers Download PDFInfo
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- CN103980805B CN103980805B CN201410217671.3A CN201410217671A CN103980805B CN 103980805 B CN103980805 B CN 103980805B CN 201410217671 A CN201410217671 A CN 201410217671A CN 103980805 B CN103980805 B CN 103980805B
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000003973 paint Substances 0.000 title claims abstract description 38
- 239000004814 polyurethane Substances 0.000 title claims abstract description 38
- 230000001131 transforming effect Effects 0.000 title abstract description 3
- 230000000087 stabilizing effect Effects 0.000 title abstract 2
- 238000000576 coating method Methods 0.000 claims abstract description 49
- 239000011248 coating agent Substances 0.000 claims abstract description 47
- 239000000203 mixture Substances 0.000 claims abstract description 39
- 229920002635 polyurethane Polymers 0.000 claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 239000002904 solvent Substances 0.000 claims abstract description 28
- 239000002253 acid Substances 0.000 claims abstract description 18
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 12
- 239000000057 synthetic resin Substances 0.000 claims abstract description 12
- 230000006641 stabilisation Effects 0.000 claims abstract description 10
- 238000011105 stabilization Methods 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 5
- -1 auxiliaries Substances 0.000 claims abstract description 4
- 239000007822 coupling agent Substances 0.000 claims abstract description 4
- 230000002378 acidificating effect Effects 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 claims description 8
- 239000001263 FEMA 3042 Substances 0.000 claims description 8
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 claims description 8
- LRBQNJMCXXYXIU-QWKBTXIPSA-N gallotannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@H]2[C@@H]([C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-QWKBTXIPSA-N 0.000 claims description 8
- 235000015523 tannic acid Nutrition 0.000 claims description 8
- 229940033123 tannic acid Drugs 0.000 claims description 8
- 229920002258 tannic acid Polymers 0.000 claims description 8
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 150000007524 organic acids Chemical class 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims description 4
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims description 4
- 235000002949 phytic acid Nutrition 0.000 claims description 4
- 229940068041 phytic acid Drugs 0.000 claims description 4
- 239000000467 phytic acid Substances 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 239000012948 isocyanate Substances 0.000 claims description 2
- 150000002513 isocyanates Chemical group 0.000 claims description 2
- 229920001225 polyester resin Polymers 0.000 claims description 2
- 239000004645 polyester resin Substances 0.000 claims description 2
- 238000001694 spray drying Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005587 bubbling Effects 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 8
- 235000011007 phosphoric acid Nutrition 0.000 description 8
- 239000002270 dispersing agent Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 229940035658 visco-gel Drugs 0.000 description 6
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 5
- 235000010215 titanium dioxide Nutrition 0.000 description 5
- 230000008439 repair process Effects 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N oxalic acid group Chemical group C(C(=O)O)(=O)O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000011527 polyurethane coating Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 235000014692 zinc oxide Nutrition 0.000 description 2
- MFXMOUUKFMDYLM-UHFFFAOYSA-L zinc;dihydrogen phosphate Chemical compound [Zn+2].OP(O)([O-])=O.OP(O)([O-])=O MFXMOUUKFMDYLM-UHFFFAOYSA-L 0.000 description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- IOPOLWHQYJSKCT-UHFFFAOYSA-L barium(2+);dihydrogen phosphate Chemical compound [Ba+2].OP(O)([O-])=O.OP(O)([O-])=O IOPOLWHQYJSKCT-UHFFFAOYSA-L 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229940074391 gallic acid Drugs 0.000 description 1
- 235000004515 gallic acid Nutrition 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides self-repair polyurethane (PU) residual rust paint with the functions of transforming and stabilizing rust layers. The self-repair PU residual rust paint comprises synthetic resin, an acid composition, auxiliaries, solvents, curing agents and the like. A preparation method of the self-repair PU residual rust paint is characterized by coating the acid composition by utilizing a coupling agent and then preparing the self-repair PU residual rust paint with the coated acid composition. The self-repair PU residual rust paint has the beneficial effects that the prepared completely coated acid composition has good dispersibility and compatibility in the PU paint, thus solving the problem of paint coat bubbling due to high solubility of the non-coated acid composition after the non-coated acid composition is directly added; the acid composition can be released slowly under the condition that water exists on the boundary of the paint coat and the base material to transform the rust layers and then form stable rust layer products; the paint has the functions of phosphatizing and self-repairing corrosion-free steel and iron. The paint has very strong rust layer transformation and stabilization capacities and can be widely applied to anti-corrosion construction of steel structure parts on which rust layers are difficult to completely remove.
Description
Technical field
The present invention relates to a kind of polyurethane selfreparing on rust paint with rusty scale conversion and stabilization, belong to coating technology
Field.
Background technology
Phosphoric acid and tannic acid are a kind of important component of environment-friendly type on rust paint.As Chinese patent CN1084906 discloses
A kind of aqueous corrosion resisting paint without need of cleaning rust, its component include synthetic resin emulsion, turn rust stable rust, infiltration degreaser, phosphating passivator,
Water, its transfer rust stabilizer is oxalic acid, tartaric acid, tannic acid, phosphoric acid.Chinese patent CN1052317 discloses a kind of aqueous band
Rust coating, is made up of synthetic resin emulsion, transforming agent, thickener, coalescents, freeze-thaw stabiliser and other auxiliary agents, its transfer
Agent is tannic acid or gallic acid.Thus it is seen that phosphoric acid and tannic acid are mainly used in waterborne rusted paint, be not suitable for
Solvent reducible coatings.This is because the moisture in phosphoric acid is incompatible with solvent based coating film forming matter, in addition directly apply in solvent-borne type
Add phosphoric acid and tannic acid can make coating severe blister in material, cause the protective effect of coating to lose.
Content of the invention
The purpose of the present invention is, in order to phosphoric acid and tannic acid are more particularly in solvent based coating, solves acidification
Compound and the consistency problem of solvent based coating film forming matter；And also to solving them to cause painting because solubility is big
The difficult problem that layer bubbles, the present invention proposes a kind of polyurethane selfreparing on rust paint with rusty scale conversion and stabilization.
Realization the technical scheme is that, the present invention adds the acidic composition after coating, shape in polyurethane coating
One-tenth can hinder corrosive medium infiltration polyurethane selfreparing band, thus obtain have rusty scale conversion and stabilization polyurethane from
Repair on rust paint.
The present invention has rusty scale conversion and the polyurethane selfreparing on rust paint of stabilization is made up of following two components：
Component one includes following components and content（In parts by mass）：
Synthetic resin 50～80；
Auxiliary agent 0.5～5；
Acidic composition 0.5～15；
Pigment 1～25；
Solvent 20～50；
Component two includes following components and content（In parts by mass）：
Solvent 0～75；
Curing agent 25～100；
Component one with the proportioning of component two is（100：1）~（100：80）；
Described acidic composition is the mixture of acid mineral thing and organic acid.Acid mineral thing is metaphosphoric acid, phosphoric acid
Dihydric salt.Metaphosphoric acid with the mass ratio of dihydric phosphate is（1：0.1）~（1：10）；Dihydric phosphate such as aluminium dihydrogen phosphate, phosphoric acid
Dihydro zinc, phosphate dihydrogen manganese, barium dihydrogen phosphate, ammonium dihydrogen phosphate etc..Organic acid is one of phytic acid, tannic acid or their mixing
Thing.Acid mineral thing with the mass ratio of organic acid is（1：0.1）~（1：10）.
Described acidic composition is the acidic composition that coupling agent coating is processed.Described coupling agent is silane coupled
Agent.Silane coupler includes vinyl-based, chlorocarbon class, ammonia alkyl class, polyurethane alkyl, methacryloxypropyl alkyls, sulfur-bearing
Alkyl class etc., trade names such as WD-26, A150, WD-50, KH550, WD-60, KH560, WD70, KH570 etc..
Synthetic resin is one of Hydroxylated acrylic resin or hydroxy polyester resin or their mixture.Changxing can be selected from
The ETERAC 7307-2-PM-70 of chemical industry limited company, ETERAC 7328-S-50, ETERAC 7331-1-XS-
70、ETERAC7331-2-X-70.
Curing agent is isocyanates curing agent, the such as D-170N of Mitsui Wu Tian KCC, D-170HN,
D-172N, D-177N etc..
Pigment is titanium white, iron oxide yellow, phthalocyanine green, ultramarine, zinc oxide, zinc white etc..
Solvent is to prepare conventional solvent in polyurethane coating, such as toluene, dimethylbenzene, butyl acetate, MEK, dimethyl
Formamide etc..
Described auxiliary agent is the conventional dispersant of coating, defoamer, levelling agent, anti-settling agent.Dispersant such as BYK company
Disperbyk®-110、Disperbyk®-170、Disperbyk®-171、Disperbyk®-174.Defoamer such as nanmu
The chemical conversion OX-60 of Zhu Shi people's commune, OX-88M, OX-70,#1950、#1951.The Glide 100 of levelling agent such as Tego chemical company,
Glide ZG 400、Glide 406、Glide 410.Anti-settling agent such as organic modified bentonite class, trade share as modest in Taiwan moral
The VISCOGEL B4 of Co., Ltd, VISCOGEL ED.
The present invention has the preparation method of the polyurethane selfreparing on rust paint of rusty scale conversion and stabilization, and its process is such as
Under：
（1）The preparation of coating acidic composition
Add solvent in a kettle., add the synthetic resin of 0.3% ~ 1% solvent quality, after uniformly mixing, add 2% ~
The acidic composition of 10% quantity of solvent, stirs 0.2 ~ 1h under 500 ~ 1500rpm, then grinds 2 ~ 12h, test fineness≤40 m
Take out base-material afterwards, the mass ratio by synthetic resin and curing agent is（100：10）~（100：80）Add curing agent, 500 ~
0.2 ~ 1h is stirred under 1500rpm.Then react 2 ~ 5h in 60 ~ 80 DEG C of temperature, be centrifuged the solid obtaining after cooling and carry out solvent
Cleaning, through 60 ~ 80 DEG C of spray drying, air-flow crushings, obtains coating acidic composition.
（2）Above-mentioned coating acidic composition is added in synthetic resin, auxiliary agent, pigment and solvent, and dispersion is ground, and is gathered
Urethane selfreparing on rust paint component one；
（3）The component two of polyurethane selfreparing on rust paint only need to dissolve curing agent solvent；Component two is added
Enter in component one, form within ambient temperature curing 1～7 day polyurethane selfreparing band rust coating.
The invention has the beneficial effects as follows, the present invention can get a kind of complete acidic composition of coating；The acid combination of coating
Thing has dispersiveness and compatibility well in polyurethane coating, solves the acidic composition being directly added into not coating due to it
Solubility high and cause a difficult problem for coating foaming, acidic composition can be slow in the case that coating has water with substrate interface
Release, produces transformation to rusty scale, then forms stable rusty scale product；The iron and steel of non-corroding is produced phosphorization and from
Repair.In addition, this polyurethane selfreparing on rust paint has good bin stability.
Preparation method of the present invention is applied to the rule of the polyurethane selfreparing on rust paint with rusty scale conversion and stabilization
Modelling produces；Polyurethane selfreparing on rust paint product of the present invention can be widely applied to be difficult to the steel construction portion of fully erased rusty scale
The Anticorrosion Construction of position.
Specific embodiment
The preparation of coating acidic composition：
Add solvent in a kettle., add the ETERAC 7307-2-PM-70 resin of 0.6% solvent quality, uniformly mix
After conjunction, the metaphosphoric acid of addition 2% quantity of solvent, the zinc dihydrogen phosphate of 1% quantity of solvent, the phytic acid of 1% quantity of solvent, stir at 600 rpm
0.3h, then grinds 4h, takes out base-material, add the 172N curing agent of 0.3% solvent quality after test fineness≤40 m,
0.5h is stirred under 1000rpm.Then react 3h at 70 DEG C, be centrifuged the solid obtaining after cooling and carry out solvent clean, 70 DEG C of sprayings
Dry, air-flow crushing, obtains coating acidic composition.
The preparation of polyurethane selfreparing on rust paint：
Comparative example 1：
Add 64kg ETERAC 7307-2-PM-70 resin in a reservoir, under stirring, then add 0.5kg
Disperbyk®- 110 dispersants, 0.5kg VISCOGEL ED anti-settling agent, 14.5kg MEK, do not have coating process 5.5kg
Acidic composition（2.75kg metaphosphoric acid, 1.375kg zinc dihydrogen phosphate, 1.375kg phytic acid）In 15kg titanium dioxide, stir 40 points
Clock, then these resin compounds are ground, obtain the component one of polyurethane selfreparing on rust paint；In other container
50kg 172N curing agent is dissolved in 50kg butyl acetate, makes the component two of polyurethane selfreparing on rust paint；By component
One：Component two=100：65 ratio is added to component two in component one, forms polyurethane selfreparing band within ambient temperature curing 7 days
Rust coating.
Embodiment 1：
Add 64kg ETERAC 7307-2-PM-70 resin in a reservoir, under stirring, then add 0.5kg
Disperbyk®- 110 dispersants, 0.5kg VISCOGEL ED anti-settling agent, 14.5kg MEK, the above-mentioned coating of 5.5kg are acid
Composition and 15kg titanium dioxide, stir 40 minutes；Again these resin compounds are ground, obtain polyurethane selfreparing band rust
The component one of coating；Other container is dissolved in 50kg 172N curing agent in 50kg butyl acetate, makes polyurethane certainly
Repair the component two of on rust paint；By component one：Component two=100：65 ratio is added to component two in component one, normal temperature
Lower solidification forms polyurethane selfreparing band rust coating for 7 days.
Embodiment 2：
Add 64kg ETERAC 7307-2-PM-70 resin in a reservoir, under stirring, then add 0.5kg
Disperbyk®- 110 dispersants, 0.5kg VISCOGEL ED anti-settling agent, 18.8kg MEK, the above-mentioned coating of 1.2kg are acid
Composition and 15kg titanium dioxide, stir 40 minutes；Again these resin compounds are ground, obtain polyurethane selfreparing band rust
The component one of coating；Other container is dissolved in 50kg 172N curing agent in 50kg butyl acetate, makes polyurethane certainly
Repair the component two of on rust paint；By component one：Component two=100：65 ratio is added to component two in component one, normal temperature
Lower solidification forms polyurethane selfreparing band rust coating for 7 days.
Embodiment 3：
Add 64kg ETERAC 7307-2-PM-70 resin in a reservoir, under stirring, then add 0.5kg
Disperbyk®The acid combination of -110 dispersants, 0.5kg VISCOGEL ED anti-settling agent, 7kg MEK, the above-mentioned coating of 13kg
Thing and 15kg titanium dioxide, stir 40 minutes；Again these resin compounds are ground, obtain polyurethane selfreparing on rust paint
Component one；Other container is dissolved in 50kg 172N curing agent in 50kg butyl acetate, makes polyurethane selfreparing
The component two of on rust paint；By component one：Component two=100：65 ratio is added to component two in component one, solid under normal temperature
Change 7 days and form polyurethane selfreparing band rust coating.
Salt spray test：
The present invention evaluates the Corrosion Protection of coating using salt spray test.Salt spray test is according to standard GB/T/T
1771-2007 is carried out, using continuous spray pattern.Solution is 5%NaCl (mass percent) solution, and test temperature is 35 ± 2
℃.Coating be prepared by aerial spraying method coating is sprayed to be exposed to the sun out of doors 6 months after remove 150mm × 75 of floating rust
On the Q235 steel plate of mm × 3 mm, air drying carried out edge sealing after 7 days, then carried out 200 hours salt spray tests.Coating dry film
Thickness is 150 ± 10 μm.
Table 1 is coating salt spray test result, and coating foaming situation shows to add the acid combination of coating of the present invention in the coating
Thing does not have the acidic composition that coating is processed to have more preferable protective value than adding.
Table 1 coating salt-fog resistant test result
| Comparative example 1 | Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Bubbling area（%） | 86 | 0 | 0 | 0 |
Claims (2)
1. a kind of polyurethane selfreparing on rust paint with rusty scale conversion and stabilization is it is characterised in that described poly- ammonia
Ester selfreparing on rust paint is made up of following two components；
Component one includes following components and content (in parts by mass)：
Component two includes following components and content (in parts by mass)：
Solvent 0～75；
Curing agent 25～100；
Component one is (100 with the proportioning of component two：1)～(100：80)；
Described synthetic resin is one of Hydroxylated acrylic resin or hydroxy polyester resin or their mixture；
Described curing agent is isocyanates curing agent；
Described acidic composition is the mixture of acid mineral thing and organic acid, and acid mineral thing with the mass ratio of organic acid is
(1：0.1)～(1：10)；
Described acid mineral thing is metaphosphoric acid, dihydric phosphate, and metaphosphoric acid is (1 with the mass ratio of dihydric phosphate：0.1)～
(1：10)；Organic acid is one of phytic acid, tannic acid or their mixture；
Described acidic composition is the acidic composition processing through coupling agent coating；
The preparation method of the acidic composition that described coating is processed is as follows：
Add solvent in a kettle., add the synthetic resin of 0.3%～1% solvent quality, after uniformly mixing, add 2%
The acidic composition of～10% quantity of solvent, stirs 0.2～1h under 500～1500rpm, then grinds 2～12h, test fineness
Base-material is taken out, the mass ratio by synthetic resin and curing agent is (100 after≤40 μm：10)～(100：80) add curing agent,
0.2～1h is stirred under 500～1500rpm；Then 60～80 DEG C react 2～5h, be centrifuged after cooling the solid obtaining carry out molten
Agent cleaning, 60～80 DEG C of spray drying, air-flow crushings, obtain coating acidic composition.
2. the polyurethane selfreparing on rust paint with rusty scale conversion and stabilization according to claim 1, its feature
It is, the preparation method of described on rust paint is carried out with step in the following order：
(1) preparation of coating acidic composition；
(2) above-mentioned coating acidic composition is added in synthetic resin, auxiliary agent, pigment and solvent, and dispersion is ground, and obtains polyurethane
Selfreparing on rust paint component one；
(3) component two of polyurethane selfreparing on rust paint only need to dissolve curing agent solvent；By component two addition group
Divide in one, form within ambient temperature curing 1～7 day polyurethane selfreparing band rust coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217671.3A CN103980805B (en) | 2014-05-22 | 2014-05-22 | Self-repair polyurethane (PU) residual rust paint with functions of transforming and stabilizing rust layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217671.3A CN103980805B (en) | 2014-05-22 | 2014-05-22 | Self-repair polyurethane (PU) residual rust paint with functions of transforming and stabilizing rust layers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103980805A CN103980805A (en) | 2014-08-13 |
| CN103980805B true CN103980805B (en) | 2017-02-15 |
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| CN201410217671.3A Active CN103980805B (en) | 2014-05-22 | 2014-05-22 | Self-repair polyurethane (PU) residual rust paint with functions of transforming and stabilizing rust layers |
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| CN112625525A (en) * | 2020-12-15 | 2021-04-09 | 江苏超途新材料科技有限公司 | Self-passivation rusty anticorrosive material and preparation method thereof |
| CN115449247B (en) * | 2022-09-13 | 2024-01-05 | 泉州师范学院 | Super-hydrophilic anti-corrosion surface coating agent and preparation method thereof |
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