CN115975467B - High-adhesion nano anti-corrosion heat-preservation integrated coating and preparation method thereof - Google Patents
High-adhesion nano anti-corrosion heat-preservation integrated coating and preparation method thereof Download PDFInfo
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- 238000000576 coating method Methods 0.000 title claims abstract description 102
- 239000011248 coating agent Substances 0.000 title claims abstract description 99
- 238000005260 corrosion Methods 0.000 title claims abstract description 93
- 238000004321 preservation Methods 0.000 title claims abstract description 67
- 238000002360 preparation method Methods 0.000 title claims abstract description 57
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 89
- 239000002122 magnetic nanoparticle Substances 0.000 claims abstract description 86
- 229920002635 polyurethane Polymers 0.000 claims abstract description 71
- 239000004814 polyurethane Substances 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000006243 chemical reaction Methods 0.000 claims abstract description 53
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000012774 insulation material Substances 0.000 claims abstract description 21
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 239000000049 pigment Substances 0.000 claims abstract description 9
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 146
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 76
- 239000000203 mixture Substances 0.000 claims description 66
- 239000002105 nanoparticle Substances 0.000 claims description 52
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical class O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 50
- 150000001412 amines Chemical class 0.000 claims description 42
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 40
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 38
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims description 36
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 36
- 229910000077 silane Inorganic materials 0.000 claims description 35
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 33
- 229920002873 Polyethylenimine Polymers 0.000 claims description 31
- 239000002245 particle Substances 0.000 claims description 31
- 239000002202 Polyethylene glycol Substances 0.000 claims description 30
- 229920001223 polyethylene glycol Polymers 0.000 claims description 30
- 239000011521 glass Substances 0.000 claims description 29
- 239000000440 bentonite Substances 0.000 claims description 25
- 229910000278 bentonite Inorganic materials 0.000 claims description 25
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 25
- 239000003054 catalyst Substances 0.000 claims description 24
- 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 22
- 239000001263 FEMA 3042 Substances 0.000 claims description 22
- 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 22
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic 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-NRMVVENXSA-N 0.000 claims description 22
- 235000015523 tannic acid Nutrition 0.000 claims description 22
- 229940033123 tannic acid Drugs 0.000 claims description 22
- 229920002258 tannic acid Polymers 0.000 claims description 22
- VATRWWPJWVCZTA-UHFFFAOYSA-N 3-oxo-n-[2-(trifluoromethyl)phenyl]butanamide Chemical compound CC(=O)CC(=O)NC1=CC=CC=C1C(F)(F)F VATRWWPJWVCZTA-UHFFFAOYSA-N 0.000 claims description 21
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 20
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 claims description 18
- 229940074391 gallic acid Drugs 0.000 claims description 18
- 235000004515 gallic acid Nutrition 0.000 claims description 18
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 claims description 17
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 16
- 229960001367 tartaric acid Drugs 0.000 claims description 16
- 239000011975 tartaric acid Substances 0.000 claims description 16
- 235000002906 tartaric acid Nutrition 0.000 claims description 16
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims description 15
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 claims description 14
- 230000004048 modification Effects 0.000 claims description 13
- 238000012986 modification Methods 0.000 claims description 13
- NHBRUUFBSBSTHM-UHFFFAOYSA-N n'-[2-(3-trimethoxysilylpropylamino)ethyl]ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCNCCN NHBRUUFBSBSTHM-UHFFFAOYSA-N 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 13
- AMVXVPUHCLLJRE-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)hexane-1,6-diamine Chemical compound CO[Si](OC)(OC)CCCNCCCCCCN AMVXVPUHCLLJRE-UHFFFAOYSA-N 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 11
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 235000012239 silicon dioxide Nutrition 0.000 claims description 9
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 8
- 239000005995 Aluminium silicate Substances 0.000 claims description 8
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical group C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 235000012211 aluminium silicate Nutrition 0.000 claims description 8
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 8
- 239000010445 mica Substances 0.000 claims description 8
- 229910052618 mica group Inorganic materials 0.000 claims description 8
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims description 8
- 229910000165 zinc phosphate Inorganic materials 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 239000003607 modifier Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 5
- 235000010215 titanium dioxide Nutrition 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- -1 silane modified ferroferric oxide Chemical class 0.000 claims description 4
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 4
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 4
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 4
- 239000010456 wollastonite Substances 0.000 claims description 4
- 229910052882 wollastonite Inorganic materials 0.000 claims description 4
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 229910000503 Na-aluminosilicate Inorganic materials 0.000 claims description 2
- 229960000892 attapulgite Drugs 0.000 claims description 2
- 239000000378 calcium silicate Substances 0.000 claims description 2
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010459 dolomite Substances 0.000 claims description 2
- 229910000514 dolomite Inorganic materials 0.000 claims description 2
- 229910052625 palygorskite Inorganic materials 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 239000000429 sodium aluminium silicate Substances 0.000 claims description 2
- 235000012217 sodium aluminium silicate Nutrition 0.000 claims description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000001550 time effect Effects 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 description 44
- 239000008367 deionised water Substances 0.000 description 30
- 229910021641 deionized water Inorganic materials 0.000 description 30
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 14
- 238000010276 construction Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000002329 infrared spectrum Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000003973 paint Substances 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 239000011490 mineral wool Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 229940098779 methanesulfonic acid Drugs 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- YJKHMSPWWGBKTN-UHFFFAOYSA-N 2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)F YJKHMSPWWGBKTN-UHFFFAOYSA-N 0.000 description 1
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 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
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000006174 pH buffer Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- 238000003878 thermal aging Methods 0.000 description 1
- 239000001038 titanium pigment Substances 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention discloses a high-adhesion nano anti-corrosion heat-preservation integrated coating and a preparation method thereof, belonging to the technical field of anti-corrosion coatings. The invention provides a high-adhesion nano anti-corrosion heat-preservation integrated coating for solving the problems of poor adhesion and short anti-corrosion time effect in the prior art, which comprises the following components: 10-35 parts of fluorine-silicon double-modified waterborne polyurethane, 3-20 parts of magnetic nanoparticles, 10-55 parts of rust conversion agent modified heat insulation material, antirust pigment and filler, curing agent, auxiliary agent and water. According to the invention, the fluorosilicone double-modified polyurethane is added, so that the water resistance and weather resistance are improved, the polymer modified magnetic nano particles are added, the coating adhesive force is improved by depending on magnetic attraction, and the rust conversion agent modified heat insulation material is adopted, so that the heat insulation material has a slow release effect under the condition of ensuring low heat conductivity, the active anti-corrosion time is prolonged, and the long-acting anti-corrosion heat insulation composite function is realized.
Description
Technical Field
The invention belongs to the technical field of anti-corrosion coating, and particularly relates to a high-adhesion nano anti-corrosion heat-preservation integrated coating and a preparation method thereof.
Background
At present, the technical level of heat preservation of a large number of pipelines and thermodynamic equipment in the petroleum and petrochemical industry is uneven, and the energy production construction, the cost and the environmental protection are directly related to energy sources. Because of severe use conditions, the polyurethane foam jacket pipe and rock wool materials widely used at present have serious thermal aging, high heat conductivity coefficient and poor heat preservation effect, and the maintenance cost of the polyurethane foam jacket pipe and rock wool materials is increased. Meanwhile, the thermal insulation material replaced after aging belongs to solid waste, and additional harmless treatment is needed, so that the treatment cost is increased. Polyurethane foam jacket pipe and rock wool do not possess anticorrosive function, need to use with heavy duty paint. Most heavy anti-corrosion paint can be coated after the anti-corrosion area is subjected to fine polishing before construction, and the construction process is complicated.
CN113121871A, CN109321058A, CN108410302a discloses a preparation of an anti-corrosion heat-preservation coating, but no rust conversion agent is introduced, so that the red rust-to-black rust conversion function cannot be realized, and the construction with rust cannot be realized. In addition, although the porous structure of the ceramic heat-insulating coating has lower heat conductivity coefficient and good heat-insulating effect, the ceramic heat-insulating coating is physically isolated, and the ceramic heat-insulating coating also needs to be coated secondarily by adopting heavy anti-corrosion primer or finishing paint, so that the anti-corrosion heat-insulating integrated function cannot be realized, and the construction is extremely inconvenient.
CN111423792a discloses a corrosion-proof heat-insulating nano water-based integrated coating, and the resin is organosilicon modified resin. Although the silicone resin coating has outstanding advantages of excellent high and low temperature resistance and weather resistance, chemical resistance, abrasion resistance and the like, the application range thereof is limited by the disadvantages of low strength, low adhesion to a substrate and the like. CN111423792a also mentions that additional acrylic resin needs to be brushed on the surface of the coating to improve the water resistance, and the construction process is complicated to carry out secondary construction. The result of the neutral salt spray test is less than 2000 hours. CN113980524 a discloses an integrated material with corrosion resistance and heat preservation and a preparation method thereof, which mainly adopts fluorosilicone modified acrylic acid as a base material, the weather resistance needs to be further improved, the rust conversion function cannot be effectively realized for a long time by adopting a method of directly adding a rust conversion agent, and the result of a neutral salt spray test is less than 2000 hours.
Disclosure of Invention
The invention develops a high-adhesion nano anti-corrosion heat-insulation integrated coating for solving the problems of high adhesion and long-acting anti-corrosion in the prior art. The organic fluorosilicone modified water-based polyurethane emulsion can make the base material have the advantages of better water resistance, thermal stability and the like. The modified magnetic nano particles are added, the adhesive force of the paint is further improved by depending on the magnetic attraction force, the heat insulation material modified by the rust conversion agent is adopted, the slow release effect is achieved under the condition of ensuring low heat conductivity, the active anti-corrosion time is prolonged by the combined action of the two modes, and the high adhesive force and long-acting anti-corrosion heat preservation composite function is realized.
In order to solve the technical problems, the invention provides a high-adhesion nano anti-corrosion heat-preservation integrated coating which comprises the following raw materials in parts by weight: 10-35 parts of fluorine-silicon double-modified waterborne polyurethane, 3-20 parts of magnetic nanoparticles, 10-55 parts of rust conversion agent modified heat insulation material, 3-25 parts of antirust pigment and filler, 3-10 parts of curing agent, 0.1-10 parts of auxiliary agent and 2-18 parts of water.
Preferably, the high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following raw materials in parts by weight: 15-35 parts of fluorine-silicon double-modified waterborne polyurethane, 5-15 parts of magnetic nanoparticles, 10-50 parts of rust conversion agent modified heat insulation material, 3-20 parts of antirust pigment and filler, 5-10 parts of curing agent, 0.5-10 parts of auxiliary agent and 2-15 parts of water.
In the high-adhesion nano anti-corrosion heat-preservation integrated coating, the magnetic nano particles are polymer modified ferroferric oxide nano particles.
Wherein, in the high-adhesion nano anti-corrosion heat-preservation integrated coating, the particle size of the magnetic nano particles is 0.1-4 mu m.
Preferably, in the high-adhesion nano anti-corrosion heat-preservation integrated coating, the polymer modification component in the magnetic nano particles is at least one of carboxyl polyethylene glycol hydroxyl, silane modification and polyethyleneimine.
More preferably, in the high-adhesion nano anti-corrosion heat-preservation integrated coating, the molecular weight of the carboxyl polyethylene glycol hydroxyl in the magnetic nano particles is 600-5000.
More preferably, in the high-adhesion nano anti-corrosion heat-preservation integrated coating, the molecular weight of the polyethyleneimine in the magnetic nanoparticles is 150000 ～ 600000.
More preferably, in the above-mentioned high-adhesion nano corrosion-resistant heat-insulating integrated coating, in the magnetic nanoparticles, the silane modifier is at least one of 3- [2- (2-aminoethylamino) ethylamino ] propyl-trimethoxysilane, [8- (epoxypropyloxy) -n-octyl ] trimethoxysilane, and [3- (6-aminohexylamino) propyl ] trimethoxysilane.
In the high-adhesion nano anti-corrosion heat-preservation integrated coating, the preparation method of the silane modified ferroferric oxide nano particle comprises the following steps of: dispersing magnetic ferroferric oxide nano particles in a proper solvent (at least one of isopropanol or water), adding a silane modifier under stirring, uniformly mixing, adding a catalyst stannous isooctanoate, reacting hydroxyl on the surface of the magnetic nano particles with silicon hydroxyl, and separating after the reaction is completed; wherein the magnetic ferroferric oxide nanoparticle: silane modifier: the mass ratio of the stannous isooctanoate catalyst is 1: 5-20: 0.3 to 0.5, and the reaction temperature is 25 to 60 ℃.
More specifically, the preparation method of the 3- [2- (2-amino ethylamino) ethylamino ] propyl-trimethoxysilane modified magnetic ferroferric oxide nanoparticle comprises the following steps: dispersing 1 part by mass of magnetic ferroferric oxide nano particles in 70-100 parts by mass of a proper solvent (at least one of isopropanol or water), adding 5-20 parts by mass of 3- [2- (2-amino-ethylamino) ethylamino ] propyl-trimethoxysilane under a rapid stirring state, adding 10-15 parts by mass of deionized water, heating to 25-60 ℃ and rapidly stirring for 20-30 min, adding 0.3-0.5 part by mass of stannous octoate catalyst, continuing to disperse at high speed for 2-3 h, reacting hydroxyl groups on the surfaces of the magnetic nano particles with silicon hydroxyl groups, and separating after the reaction is completed.
More specifically, the preparation method of the [8- (epoxypropyloxy) -n-octyl ] trimethoxysilane modified magnetic ferroferric oxide nanoparticle comprises the following steps: dispersing 1 part by mass of magnetic ferroferric oxide nano particles in 50-100 parts by mass of a proper solvent (at least one of isopropanol or water), adding 5-20 parts by mass of [8- (epoxypropyloxy) -n-octyl ] trimethoxysilane and 1-5 parts by mass of cetyltrimethylammonium bromide (CTAB) under a rapid stirring state, rapidly stirring for 30-60 min at 25-60 ℃, then adding 0.3-0.5 part by mass of stannous octoate, continuously stirring at a high speed for 1-3 h, reacting hydroxyl groups on the surfaces of the magnetic nano particles with silicon hydroxyl groups, and separating after the reaction is completed.
More specifically, the preparation method of the [3- (6-amino hexylamino) propyl ] trimethoxysilane modified magnetic ferroferric oxide nanoparticle comprises the following steps: dispersing 1 part by mass of magnetic ferroferric oxide nano particles in 50-100 parts by mass of a proper solvent (at least one of isopropanol or water), adding 5-20 parts by mass of [3- (6-amino hexylamino) propyl ] trimethoxy silane under a rapid stirring state, rapidly stirring at 25-60 ℃ for 60-90 min, adding 0.3-0.5 part by mass of stannous octoate catalyst, continuously stirring at a high speed for 1-2 h, reacting hydroxyl groups on the surfaces of the magnetic nano particles with silicon hydroxyl groups, and separating after the reaction is completed.
In the high-adhesion nano anti-corrosion heat-preservation integrated coating, the preparation method of the carboxyl polyethylene glycol modified magnetic nano particles comprises the following steps of: dispersing the magnetic ferroferric oxide nano particles coated with silicon dioxide in a proper solvent, adding carboxyl polyethylene glycol hydroxyl, CTAB and catalyst methylsulfonic acid under stirring to enable the hydroxyl on the surface of the magnetic nano particles to react with the carboxyl polyethylene glycol hydroxyl, and separating after the reaction is completed; wherein, the magnetic ferroferric oxide nano particles coated by silicon dioxide: carboxyl polyethylene glycol hydroxyl group: CTAB: the mass ratio of the catalyst methylsulfonic acid is 1: 5-25: 2-10: 0.3 to 0.5.
More specifically, the preparation method of the carboxylated polyethylene glycol modified magnetic nanoparticle comprises the following steps: dispersing 1 part by mass of silicon dioxide coated magnetic ferroferric oxide nano particles in 50-100 parts by mass of deionized water, adding 5-25 parts by mass of carboxyl polyethylene glycol hydroxyl, 2-10 parts by mass of CTAB and 0.3-0.5 part by mass of methanesulfonic acid catalyst under a rapid stirring state, continuously stirring at normal temperature for 1-2 hours at high speed, so that the carboxyl polyethylene glycol hydroxyl reacts with hydroxyl on the surface of the magnetic nano particles, and separating after the reaction is completed.
In the high-adhesion nano anti-corrosion heat-preservation integrated coating, the preparation method of the magnetic ferroferric oxide nano particles modified by polyethyleneimine comprises the following steps of: dispersing magnetic ferroferric oxide nano particles in a proper solvent, adding polyethyleneimine and catalyst methylsulfonic acid under stirring to enable hydroxyl groups on the surfaces of the magnetic nano particles to react with the polyethyleneimine, and separating after the reaction is completed; wherein, magnetic ferroferric oxide nano particles: polyethyleneimine: the mass ratio of the catalyst methylsulfonic acid is 1: 5-25: 0.1 to 2.
More specifically, the preparation method of the polyethyleneimine modified magnetic ferroferric oxide nanoparticle comprises the following steps: dispersing 1 part by mass of magnetic ferroferric oxide nano particles in 50-100 parts by mass of deionized water, adding 5-25 parts by mass of polyethylenimine and 0.1-2 parts by mass of methylsulfonic acid catalyst under a rapid stirring state, continuing to disperse at a high speed for 1-3 hours, enabling the polyethylenimine to react with hydroxyl on the surfaces of the magnetic nano particles, and separating after the reaction is completed at normal temperature for 3-5 hours.
The high-adhesion nano anti-corrosion heat-preservation integrated coating is characterized in that the heat-insulating material modified by the rust conversion agent is at least one of hollow glass particles or porous bentonite.
The high-adhesion nano anti-corrosion heat-preservation integrated coating is characterized in that the rust transforming agent modified heat-insulation material comprises at least one of tannic acid, gallic acid and tartaric acid.
In the high-adhesion nano anti-corrosion heat-preservation integrated coating, the preparation method of the heat-insulating material modified by the rust conversion agent comprises the following steps of:
dissolving the rust conversion agent modified component by using a proper solvent, then mixing with a heat insulation material, adding a catalyst, continuously stirring for 1-2 hours at 40-80 ℃, and separating and drying after the reaction is finished to obtain the modified rust conversion agent; wherein, the mass ratio of the rust conversion agent modifying component to the heat insulation material is 1: 2-20, wherein the catalyst is N, N' -dicyclohexylcarbodiimide.
In the high-adhesion nano anti-corrosion heat-preservation integrated coating, the anti-rust pigment and filler is at least one of titanium white powder, light calcium carbonate, carbon black, wollastonite powder, aluminum tripolyphosphate, zinc phosphate, talcum powder, mica powder, quartz powder, kaolin, wollastonite, dolomite, attapulgite, barium sulfate, calcium silicate and sodium aluminosilicate.
In the high-adhesion nano anti-corrosion heat-preservation integrated coating, the auxiliary agent is at least one of propylene glycol butyl ether, dipropylene glycol methyl ether, ethylene glycol butyl ether, diethylene glycol butyl ether and dipropylene glycol dimethyl ether.
In the high-adhesion nano anti-corrosion heat-preservation integrated coating, the curing agent is at least one of organic amines and silanes.
The preparation method of the high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following steps of: adding fluorine-silicon double-modified waterborne polyurethane into a high-speed dispersing machine, adding a rust conversion agent to modify a heat insulation material under a stirring state, stirring for 0.5h, adding magnetic nanoparticles, stirring for 0.5h, adding an antirust pigment filler and an auxiliary agent, stirring for 1h, adding a curing agent, stirring for 0.5h, and finally adding water, stirring for 20min to obtain the high-adhesion nano anti-corrosion heat-insulation integrated coating.
The invention has the beneficial effects that:
the invention adopts the fluorosilicone modified waterborne polyurethane as the base material, and has better weather resistance; the polymer is added to modify the magnetic nano particles, and the adhesive force of the coating is improved by depending on the magnetic attraction, so that the bonding strength of the coating is more than 3.0Mpa; the rust conversion agent is adopted to modify the heat insulation material, the slow release effect is achieved under the condition of ensuring low heat conductivity, the active corrosion prevention time is prolonged by the mutual synergistic effect of the enhanced adhesive force and the slow release rust conversion agent, the neutral salt spray test is more than 2000 hours, the coating is not obviously changed, and the high adhesive force and long-acting corrosion prevention and heat insulation composite function is achieved.
Drawings
FIG. 1 is an infrared spectrum of glass particles before and after tannic acid modification.
FIG. 2 is an infrared spectrum of glass particles before and after gallic acid modification.
FIG. 3 is an infrared spectrum of glass particles before and after tartaric acid modification.
FIG. 4 is an infrared spectrum of bentonite before and after tannic acid modification.
FIG. 5 is an infrared spectrum of bentonite before and after gallic acid modification.
FIG. 6 is an infrared spectrum of bentonite before and after tartaric acid modification.
Detailed Description
In the high-adhesion nano anti-corrosion heat-preservation integrated coating, the fluorine-silicon double-modified waterborne polyurethane is adopted, so that the water resistance and weather resistance are improved, and the fluorine atom radius is small, the electronegativity is strong, the polarizability and the refractive index are small, so that the fluorine-containing polymer has excellent electrical and optical properties, and can be used for improving the water resistance of the waterborne polyurethane, reducing the water absorption rate and improving the chemical resistance and weather resistance. The organic fluorine modified waterborne polyurethane can lead the emulsion to have the advantages of excellent water resistance, heat stability and the like. The fluorosilicone polymer has the advantages of organic fluorine and organic silicon, has lower surface tension (18 mN/m) than polysiloxane, and has excellent flexibility, thermal stability and good biocompatibility; magnetic nano particles are added, and the adhesive force of the paint is improved by depending on magnetic attraction; the heat insulation material modified by the rust conversion agent has a slow release effect under the condition of ensuring low heat conductivity, prolongs the active anti-corrosion time and realizes the long-acting anti-corrosion heat insulation composite function.
According to the invention, by optimizing the coating components, the high-adhesion nano anti-corrosion heat-preservation integrated coating is developed, can be applied to rust construction, is directly coated on a pipeline needing heat preservation, does not need an additional protective layer after coating, and is simple and convenient to construct.
The present invention will be described in further detail by way of examples, which are not intended to limit the scope of the invention.
In examples and comparative examples, the "parts" are "parts by mass".
In examples and comparative examples, the modification method of the rust converting agent-modified heat insulating material was: dissolving tannic acid, gallic acid or tartaric acid with a proper solvent (water or ethanol) according to the mass ratio of the rust conversion agent to the heat insulation material of 1: and 4, adding the catalyst into hollow glass particles or porous bentonite, adding a small amount of catalyst N, N' -Dicyclohexylcarbodiimide (DCC), continuously stirring for 1h, transferring to 60 ℃ for reaction for 5h, filtering after the reaction is finished, and drying the residual solvent of the filter cake to obtain the tannic acid, gallic acid or tartaric acid modified hollow glass particles or porous bentonite.
Example 1
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 15% of fluorosilicone double-modified waterborne polyurethane emulsion, 10% of polyethyleneimine modified magnetic nanoparticles, 35% of gallic acid modified hollow glass particles, 20% of light calcium carbonate, 9% of organic amine curing agent, 1% of dipropylene glycol methyl ether and ethylene glycol butyl ether mixture (volume ratio of 1:1) and 10% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane comprises the following steps: stirring isophorone diisocyanate (30 parts), polypropylene glycol (15 parts), terminal hydroxypropyl siloxane (15 parts) and 3-4 drops of catalyst DBTDL for 2 hours under the nitrogen atmosphere at 80 ℃ to obtain a prepolymer containing active group-NCO; cooling to 50 ℃, adding 1, 4-butanediol (5 parts), dimethylolpropionic acid (8 parts) and proper amount of acetone, heating to 80 ℃ and continuing to react for 2 hours. Then cooling to 35 ℃, adding TEA (5 parts) for neutralization reaction for 15min; high-speed shearing, emulsifying and dispersing to obtain silicon-based polyurethane aqueous dispersion (SiPU);
pre-emulsifying the prepared dispersion as seed emulsion (SiPU) and sodium dodecyl sulfate in deionized water for 30min, slowly dripping acrylic monomer (5 parts), methyl methacrylate (5 parts) (MMA) and dodecafluoroheptyl methacrylate (8 parts), swelling for a period of time, heating to 80deg.C, adding NaHCO 3 Ammonium persulfate (2 parts) is slowly added dropwise as a pH buffer, and the dropwise addition is completed, and the heat preservation reaction is continued for 2 hours, so that the fluorosilicone double-modified aqueous polyurethane emulsion is obtained.
The specific preparation method of the polyethyleneimine modified magnetic ferroferric oxide nanoparticle comprises the following steps: dispersing magnetic ferroferric oxide nano particles (1 part) in deionized water (50 parts), adding polyethyleneimine (Mw=70000) (10 parts) and methylsulfonic acid (0.1 part) catalyst under a rapid stirring state, continuing to disperse at a high speed for 2 hours, enabling the polyethyleneimine to react with hydroxyl groups on the surfaces of the magnetic nano particles, centrifuging after the reaction is completed at normal temperature for 5 hours, and collecting a centrifugate to obtain the polyethyleneimine modified magnetic ferroferric oxide nano particles.
Adding 15 parts of fluorosilicone double-modified aqueous polyurethane emulsion into a high-speed dispersing machine, adding 35 parts of gallic acid modified hollow glass particles under stirring, stirring for 0.5 hour, adding 10 parts of polyethyleneimine modified magnetic nano particles, continuously stirring for 0.5 hour, adding 20 parts of light calcium carbonate, 1 part of dipropylene glycol methyl ether and ethylene glycol butyl ether mixture, continuously stirring for 1 hour, adding 9 parts of organic amine curing agent, stirring for 0.5 hour, and finally adding 10 parts of deionized water, stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-preservation integrated coating.
Example 2
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 20% of fluorosilicone double-modified waterborne polyurethane emulsion, 10% of polyethyleneimine modified magnetic nanoparticles, 30% of tannic acid modified hollow glass particles, 20% of a mixture of light calcium carbonate and barium sulfate (the mass ratio is 3:1), 9% of a mixture of an organic amine curing agent and a silane curing agent (the volume ratio is 1:5), 1% of a mixture of dipropylene glycol methyl ether and ethylene glycol butyl ether (the volume ratio is 1:1) and 10% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane and the specific preparation method of the polyethyleneimine modified magnetic nanoparticle are described in example 1.
Adding 20 parts of fluorosilicone double-modified aqueous polyurethane emulsion into a high-speed dispersing machine, adding 30 parts of tannic acid modified hollow glass particles under stirring, stirring for 0.5 hour, adding 10 parts of polyethyleneimine modified magnetic nano particles, continuously stirring for 0.5 hour, adding 20 parts of light calcium carbonate and barium sulfate mixture and 1 part of dipropylene glycol methyl ether and ethylene glycol butyl ether mixture, continuously stirring for 1 hour, adding 9 parts of organic amine curing agent and silane curing agent mixture, stirring for 0.5 hour, and finally adding 10 parts of deionized water, and stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-preservation integrated coating.
Example 3
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 20% of fluorosilicone double-modified waterborne polyurethane emulsion, 12% of 3- [2- (2-amino ethylamino) ethylamino ] propyl-trimethoxy silane modified magnetic nano particles, 40% of tannic acid modified hollow glass particles, 10% of a mixture of light calcium carbonate and barium sulfate (the mass ratio is 3:1), 10% of an organic amine curing agent, 1% of dipropylene glycol methyl ether and 7% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the silane modified magnetic ferroferric oxide nanoparticle comprises the following steps: dispersing magnetic ferroferric oxide nano particles (1 part) in 80 parts of isopropanol, adding 10 parts of 3- [2- (2-amino ethylamino) ethylamino ] propyl-trimethoxysilane under a rapid stirring state, adding 10 parts of deionized water, heating to 40 ℃ and rapidly stirring for 20min, adding 0.5 part of stannous iso-octoate catalyst, continuing to disperse at high speed for 3h, enabling hydroxyl groups on the surfaces of the magnetic nano particles to react with silicon hydroxyl groups, carrying out centrifugal separation treatment after the reaction is finished, and collecting a centrifugate to obtain the magnetic ferroferric oxide nano particles modified by the 3- [2- (2-amino ethylamino) ethylamino ] propyl-trimethoxysilane.
Adding 20 parts of fluorosilicone double-modified aqueous polyurethane emulsion into a high-speed dispersing machine, adding 40 parts of tannic acid modified hollow glass particles under stirring, stirring for 0.5 hour, adding 12 parts of 3- [2- (2-amino-ethylamino) -ethylamino ] -propyl-trimethoxysilane modified magnetic nano particles, continuously stirring for 0.5 hour, adding 10 parts of a mixture of light calcium carbonate and barium sulfate and 1 part of dipropylene glycol methyl ether, continuously stirring for 1 hour, adding 10 parts of an organic amine curing agent, stirring for 0.5 hour, and finally adding 7 parts of deionized water, and stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-preservation integrated coating.
Example 4
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 20% of fluorosilicone double-modified waterborne polyurethane emulsion, 8% of silane modified magnetic nanoparticles, 45% of tartaric acid modified porous bentonite, 13% of a mixture of barium sulfate and kaolin (mass ratio of 2:3), 9% of an organic amine curing agent, 2% of dipropylene glycol methyl ether and 3% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the silane modified magnetic ferroferric oxide nanoparticle is described in example 3.
Adding 20 parts of fluorosilicone double-modified waterborne polyurethane emulsion into a high-speed dispersing machine, adding 45 parts of tartaric acid modified porous bentonite under stirring, stirring for 0.5 hour, adding 8 parts of 3- [2- (2-amino-ethylamino) -ethylamino ] -propyl-trimethoxysilane modified magnetic nano particles, continuously stirring for 0.5 hour, adding 13 parts of barium sulfate and kaolin mixture and 2 parts of dipropylene glycol methyl ether, continuously stirring for 1 hour, adding 9 parts of organic amine curing agent, stirring for 0.5 hour, and finally adding 3 parts of deionized water, and stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-preservation integrated coating.
Example 5
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 35% of fluorosilicone double-modified waterborne polyurethane emulsion, 5% of carboxylated polyethylene glycol modified magnetic nanoparticles, 16% of gallic acid modified hollow glass particles, 20% of a mixture of light calcium carbonate and barium sulfate (the mass ratio is 3:1), 8% of an organic amine curing agent, 1% of dipropylene glycol dimethyl ether and 15% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the carboxylated polyethylene glycol modified magnetic nanoparticle comprises the following steps: dispersing 1 part of the magnetic ferroferric oxide nano particles coated with silicon dioxide in deionized water, adding 10 parts of carboxyl polyethylene glycol hydroxyl (Mw=2000), 5 parts of CTAB and 0.3 part of methanesulfonic acid under the condition of rapid stirring at normal temperature, continuing to disperse at high speed for 1h, so that the carboxyl polyethylene glycol hydroxyl reacts with the hydroxyl on the surface of the magnetic nano particles, and separating after the reaction is finished to obtain the magnetic ferroferric oxide nano particles modified by the carboxyl polyethylene glycol hydroxyl.
Adding 35 parts of fluorosilicone double-modified waterborne polyurethane emulsion into a high-speed dispersing machine, adding 16 parts of gallic acid modified hollow glass particles under stirring, stirring for 0.5 hour, adding 5 parts of carboxylated polyethylene glycol modified magnetic nanoparticles, continuously stirring for 0.5 hour, adding 20 parts of a mixture of light calcium carbonate and barium sulfate and 1 part of dipropylene glycol methyl ether, continuously stirring for 1 hour, adding 8 parts of an organic amine curing agent, stirring for 0.5 hour, and finally adding 15 parts of deionized water, stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion and heat-insulation integrated coating.
Example 6
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 24% of fluorosilicone double-modified waterborne polyurethane emulsion, 15% of carboxylated polyethylene glycol modified magnetic nanoparticles, 40% of gallic acid modified porous bentonite, 8% of a mixture of light calcium carbonate and zinc phosphate (mass ratio of 4:1), 9% of an organic amine curing agent, 2% of a mixture of diethylene glycol butyl ether and dipropylene glycol dimethyl ether (volume ratio of 1:1) and 2% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the carboxylated polyethylene glycol modified magnetic nanoparticle is described in example 5.
Adding 24 parts of fluorosilicone double-modified waterborne polyurethane emulsion into a high-speed dispersing machine, adding 40 parts of gallic acid modified porous bentonite under stirring, stirring for 0.5 hour, adding 15 parts of carboxylated polyethylene glycol modified magnetic nanoparticles, continuously stirring for 0.5 hour, adding 8 parts of a mixture of light calcium carbonate and zinc phosphate and 2 parts of a mixture of diethylene glycol butyl ether and dipropylene glycol dimethyl ether, continuously stirring for 1 hour, adding 9 parts of an organic amine curing agent, stirring for 0.5 hour, and finally adding 2 parts of deionized water, stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-preservation integrated coating.
Example 7
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 20% of fluorosilicone double-modified waterborne polyurethane emulsion, 12% of polyethyleneimine modified magnetic nanoparticles, 36% of tannic acid modified porous bentonite, 10% of a mixture of light calcium carbonate and zinc phosphate (mass ratio of 4:1), 9% of an organic amine curing agent, 2% of a mixture of diethylene glycol butyl ether and dipropylene glycol dimethyl ether (volume ratio of 1:1) and 11% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the polyethyleneimine-modified magnetic nanoparticle is described in example 1.
Adding 20 parts of fluorosilicone double-modified aqueous polyurethane emulsion into a high-speed dispersing machine, adding 36 parts of tannic acid modified porous bentonite under stirring, stirring for 0.5 hour, adding 12 parts of polyethyleneimine modified magnetic nanoparticles, continuously stirring for 0.5 hour, adding 10 parts of a mixture of light calcium carbonate and zinc phosphate and 2 parts of a mixture of diethylene glycol butyl ether and dipropylene glycol dimethyl ether, continuously stirring for 1 hour, adding 9 parts of an organic amine curing agent, stirring for 0.5 hour, and finally adding 11 parts of deionized water, stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion and heat-insulation integrated coating.
Example 8
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 30% of fluorosilicone double-modified waterborne polyurethane emulsion, 11% of [8- (epoxypropyloxy) -n-octyl ] trimethoxy silane modified magnetic nano particles, 30% of tannic acid modified glass particles, 12% of light calcium carbonate, 9% of organic amine curing agent, 1% of dipropylene glycol methyl ether and 7% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the silane modified magnetic ferroferric oxide nanoparticle comprises the following steps: dispersing 1 part of magnetic ferroferric oxide nano particles in 50 parts (volume ratio of 1:1) of mixed solution of isopropanol and water, adding 10 parts of [8- (epoxypropyloxy) -n-octyl ] trimethoxysilane and 4 parts of cetyltrimethylammonium bromide (CTAB) under a rapid stirring state, rapidly stirring for 30min at normal temperature, adding 0.3 part of stannous iso-octoate, continuously stirring at a high speed for 2h, enabling hydroxyl groups on the surfaces of the magnetic nano particles to react with silicon hydroxyl groups, centrifuging after the reaction is finished, and collecting a centrifugate to obtain the magnetic ferroferric oxide nano particles modified by the [8- (epoxypropyloxy) -n-octyl ] trimethoxysilane.
Adding 30 parts of fluorosilicone double-modified aqueous polyurethane emulsion into a high-speed dispersing machine, adding 30 parts of tannic acid modified glass particles under stirring, stirring for 0.5 hour, adding 11 parts of [8- (epoxypropyloxy) -n-octyl ] trimethoxy silane modified magnetic nano particles, continuously stirring for 0.5 hour, adding 12 parts of light calcium carbonate and 1 part of dipropylene glycol methyl ether, continuously stirring for 1 hour, adding 9 parts of organic amine curing agent, stirring for 0.5 hour, and finally adding 7 parts of deionized water, stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-preservation integrated coating.
Example 9
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 28% of fluorosilicone double-modified waterborne polyurethane emulsion, 15% of [8- (epoxypropyloxy) -n-octyl ] trimethoxysilane modified magnetic nanoparticles, 28% of gallic acid modified glass particles, 13% of a mixture of light calcium carbonate and titanium dioxide (mass ratio of 3:1), 9% of a mixture of an organic amine curing agent and a silane curing agent (volume ratio of 1:5), 1% of a mixture of propylene glycol butyl ether and diethylene glycol butyl ether (volume ratio of 1:1) and 6% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the silane modified magnetic ferroferric oxide nanoparticle is described in example 8.
28 parts of fluorosilicone double-modified aqueous polyurethane emulsion is added into a high-speed dispersing machine, 28 parts of gallic acid modified glass particles are added under stirring and stirred for 0.5 hour, 15 parts of [8- (epoxypropyloxy) -n-octyl ] trimethoxy silane modified magnetic nano particles are added and stirred for 0.5 hour, 13 parts of light calcium carbonate and titanium dioxide mixture and 1 part of propylene glycol butyl ether and diethylene glycol butyl ether mixture are added and stirred for 1 hour, 9 parts of organic amine curing agent and silane curing agent mixture are added and stirred for 0.5 hour, and finally 6 parts of deionized water is added and stirred for 20 minutes, so that the high-adhesion nano anti-corrosion heat-preservation integrated coating is obtained.
Example 10
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 25% of fluorosilicone double-modified waterborne polyurethane emulsion, 16% of [3- (6-amino hexylamino) propyl ] trimethoxysilane modified magnetic nanoparticles, 31% of tannic acid modified glass particles, 15% of a titanium pigment and mica powder mixture (mass ratio of 2:1), 9% of an organic amine curing agent, 1% of a propylene glycol butyl ether and diethylene glycol butyl ether mixture (volume ratio of 1:1) and 3% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the silane modified magnetic ferroferric oxide nanoparticle comprises the following steps: dispersing 1 part of magnetic ferroferric oxide nano particles in 50 parts of isopropanol, adding 8 parts of [3- (6-amino hexylamino) propyl ] trimethoxysilane under rapid stirring, rapidly stirring at 40 ℃ for 60min, adding 0.3 part of stannous iso-octoate catalyst, continuously stirring at high speed for 1.5h, enabling hydroxyl groups on the surfaces of the magnetic nano particles to react with silicon hydroxyl groups, centrifuging after the reaction is finished, and collecting a centrifugate to obtain the [3- (6-amino hexylamino) propyl ] trimethoxysilane modified magnetic ferroferric oxide nano particles.
Adding 25 parts of fluorosilicone double-modified aqueous polyurethane emulsion into a high-speed dispersing machine, adding 31 parts of tannic acid modified glass particles under stirring, stirring for 0.5 hour, adding 16 parts of [3- (6-amino hexylamino) propyl ] trimethoxy silane modified magnetic nano particles, continuously stirring for 0.5 hour, adding 15 parts of titanium dioxide and mica powder mixture and 1 part of propylene glycol butyl ether and diethylene glycol butyl ether mixture, continuously stirring for 1 hour, adding 9 parts of organic amine curing agent, continuously stirring for 0.5 hour, and finally adding 3 parts of deionized water, and stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-preservation integrated coating.
Example 11
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 18% of fluorosilicone double-modified waterborne polyurethane emulsion, 15% of 3- [2- (2-amino ethylamino) ethylamino ] propyl-trimethoxy silane modified magnetic nano particles, 32% of tartaric acid modified glass particles, 18% of a mixture of light calcium carbonate and mica powder (mass ratio of 5:1), 10% of an organic amine curing agent, 1% of a mixture of propylene glycol butyl ether and diethylene glycol butyl ether (volume ratio of 1:1) and 6% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the silane modified magnetic ferroferric oxide nanoparticle is described in example 3.
Adding 18 parts of fluorosilicone double-modified aqueous polyurethane emulsion into a high-speed dispersing machine, adding 32 parts of tartaric acid modified glass particles into the stirring state and stirring for 0.5 hour, adding 15 parts of 3- [2- (2-amino-ethylamino) -ethylamino ] -propyl-trimethoxysilane modified magnetic nano particles and continuously stirring for 0.5 hour, adding 18 parts of light calcium carbonate and mica powder mixture and 1 part of propylene glycol butyl ether and diethylene glycol butyl ether mixture and continuously stirring for 1 hour, adding 10 parts of organic amine curing agent and stirring for 0.5 hour, and finally adding 6 parts of deionized water and stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-preservation integrated coating.
Example 12
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 22% of fluorosilicone double-modified waterborne polyurethane emulsion, 18% of carboxylated polyethylene glycol modified magnetic nanoparticles, 29% of gallic acid modified porous bentonite, 16% of a mixture of calcium carbonate and aluminum tripolyphosphate (mass ratio of 4:1), 9% of an organic amine curing agent and silane curing agent (volume ratio of 1:5), 1% of a mixture of propylene glycol butyl ether and dipropylene glycol methyl ether (volume ratio of 1:1) and 5% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the carboxylated polyethylene glycol modified magnetic nanoparticle comprises the following steps: dispersing 1 part of silicon dioxide coated magnetic ferroferric oxide nano particles in 50 parts of deionized water, adding 10 parts of carboxyl polyethylene glycol hydroxyl (Mw=4000), 5 parts of CTAB and 0.5 part of methylsulfonic acid catalyst under a rapid stirring state, continuing stirring at normal temperature for 2 hours at a high speed, enabling the carboxyl polyethylene glycol hydroxyl to react with the hydroxyl on the surface of the magnetic nano particles, and carrying out centrifugal separation after the reaction is finished to obtain the carboxyl polyethylene glycol hydroxyl modified magnetic ferroferric oxide nano particles.
Adding 22 parts of fluorosilicone double-modified waterborne polyurethane emulsion into a high-speed dispersing machine, adding 29 parts of gallic acid modified porous bentonite in a stirring state, stirring for 0.5 hour, adding 18 parts of carboxylated polyethylene glycol modified magnetic nanoparticles, continuously stirring for 0.5 hour, adding 16 parts of calcium carbonate and aluminum tripolyphosphate mixture and 1 part of propylene glycol butyl ether and dipropylene glycol methyl ether mixture, continuously stirring for 1 hour, adding 9 parts of organic amine curing agent and silane curing agent, stirring for 0.5 hour, and finally adding 5 parts of deionized water, and stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-preservation integrated coating.
Example 13
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 26% of fluorosilicone double-modified waterborne polyurethane emulsion, 16% of [8- (epoxypropyloxy) -n-octyl ] trimethoxysilane modified magnetic nanoparticles, 33% of tannic acid modified porous bentonite, 10% of a mixture of light calcium carbonate, barium sulfate and zinc phosphate (mass ratio of 3:1:1), 10% of an organic amine curing agent and a silane curing agent (volume ratio of 1:5), 1% of dipropylene glycol dimethyl ether and 4% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the silane modified magnetic ferroferric oxide nanoparticle is described in example 8.
26 parts of fluorosilicone double-modified aqueous polyurethane emulsion is added into a high-speed dispersing machine, 33 parts of tannic acid modified porous bentonite is added under stirring and stirred for 0.5 hour, 16 parts of [8- (epoxypropyloxy) -n-octyl ] trimethoxy silane modified magnetic nano particles are added and stirred for 0.5 hour, 10 parts of a mixture of light calcium carbonate, barium sulfate and zinc phosphate and 1 part of dipropylene glycol dimethyl ether are added and stirred for 1 hour, 10 parts of an organic amine curing agent and a silane curing agent are added and stirred for 0.5 hour, and finally 4 parts of deionized water is added and stirred for 20 minutes, so that the high-adhesion nano anti-corrosion heat-preservation integrated coating is obtained.
Example 14
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 26% of fluorosilicone double-modified waterborne polyurethane emulsion, 15% of [3- (6-amino hexylamino) propyl ] trimethoxysilane modified magnetic nanoparticles, 36% of tartaric acid modified porous bentonite, 11% of a mixture of light calcium carbonate and kaolin (mass ratio of 6:1), 8% of an organic amine curing agent, 1% of a mixture of dipropylene glycol methyl ether and ethylene glycol butyl ether (volume ratio of 1:2) and 3% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the silane modified magnetic ferroferric oxide nanoparticle is described in example 10.
26 parts of fluorosilicone double-modified aqueous polyurethane emulsion is added into a high-speed dispersing machine, 36 parts of tartaric acid modified porous bentonite is added under stirring and stirred for 0.5 hour, 15 parts of [3- (6-amino hexylamino) propyl ] trimethoxy silane modified magnetic nano particles are added and stirred for 0.5 hour continuously, 11 parts of a mixture of light calcium carbonate and kaolin and 1 part of a mixture of dipropylene glycol methyl ether and ethylene glycol butyl ether are added and stirred for 1 hour continuously, 8 parts of an organic amine curing agent is added and stirred for 0.5 hour, and finally 3 parts of deionized water is added and stirred for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-preservation integrated coating.
Example 15
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 24% of fluorosilicone double-modified waterborne polyurethane emulsion, 13% of polyethyleneimine modified magnetic nanoparticles, 33% of tartaric acid modified glass particles, 9% of a mixture of light calcium carbonate and barium sulfate (3:4 by mass), 10% of a mixture of an organic amine curing agent and a silane curing agent (1:5 by volume), 2% of a mixture of diethylene glycol butyl ether and dipropylene glycol dimethyl ether (1:1 by volume) and 9% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the magnetic ferroferric oxide nanoparticle of the polyethyleneimine is described in example 1.
Adding 24 parts of fluorosilicone double-modified aqueous polyurethane emulsion into a high-speed dispersing machine, adding 33 parts of tartaric acid modified glass particles under stirring, stirring for 0.5 hour, adding 13 parts of polyethyleneimine modified magnetic nano particles, continuously stirring for 0.5 hour, adding 9 parts of mixture of light calcium carbonate and barium sulfate, 2 parts of diethylene glycol butyl ether and dipropylene glycol dimethyl ether, continuously stirring for 1 hour, adding 10 parts of mixture of an organic amine curing agent and a silane curing agent, stirring for 0.5 hour, and finally adding 9 parts of deionized water, and stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-preservation integrated coating.
Example 16
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 26% of fluorosilicone double-modified waterborne polyurethane emulsion, 18% of 3- [2- (2-amino ethyl amino) ethylamino ] propyl-trimethoxy silane modified magnetic nanoparticles, 32% of gallic acid modified porous bentonite, 10% of a mixture of light calcium carbonate and kaolin (mass ratio of 4:1), 9% of an organic amine curing agent, 1% of a mixture of diethylene glycol butyl ether and dipropylene glycol dimethyl ether (volume ratio of 1:1) and 4% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the silane modified magnetic ferroferric oxide nanoparticle is described in example 3.
26 parts of fluorosilicone double-modified aqueous polyurethane emulsion is added into a high-speed dispersing machine, 32 parts of gallic acid modified porous bentonite is added under stirring and stirred for 0.5 hour, 18 parts of 3- [2- (2-amino-ethylamino) -ethylamino ] -propyl-trimethoxysilane modified magnetic nano particles are added and stirred for 0.5 hour, 10 parts of mixture of light calcium carbonate and kaolin and 1 part of mixture of diethylene glycol butyl ether and dipropylene glycol dimethyl ether are added and stirred for 1 hour, 9 parts of organic amine curing agent is added and stirred for 0.5 hour, and finally 4 parts of deionized water is added and stirred for 20 minutes, so that the high-adhesion nano anti-corrosion heat-preservation integrated coating is obtained.
Example 17
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 27% of fluorosilicone double-modified waterborne polyurethane emulsion, 13% of [8- (epoxypropyloxy) -n-octyl ] trimethoxy silane modified magnetic nano particles, 32% of tartaric acid modified porous bentonite, 10% of a mixture of light calcium carbonate and mica powder (mass ratio of 3:1), 9% of an organic amine curing agent and a silane curing agent (volume ratio of 1:5), 2% of a mixture of diethylene glycol butyl ether and dipropylene glycol dimethyl ether (volume ratio of 1:1) and 7% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the silane modified magnetic ferroferric oxide nanoparticle is described in example 8.
Adding 27 parts of fluorosilicone double-modified waterborne polyurethane emulsion into a high-speed dispersing machine, adding 32 parts of tartaric acid modified porous bentonite under stirring, stirring for 0.5 hour, adding 13 parts of [8- (epoxypropyloxy) -n-octyl ] trimethoxy silane modified magnetic nano particles, continuously stirring for 0.5 hour, adding 10 parts of a mixture of light calcium carbonate and mica powder and 2 parts of a mixture of diethylene glycol butyl ether and dipropylene glycol dimethyl ether, continuously stirring for 1 hour, adding 9 parts of an organic amine curing agent and a silane curing agent, stirring for 0.5 hour, and finally adding 7 parts of deionized water, stirring for 20 minutes to obtain the high-adhesion nano anti-corrosion heat-insulation integrated coating.
Example 18
The high-adhesion nano anti-corrosion heat-preservation integrated coating comprises the following components in percentage by mass: 29% of fluorosilicone double-modified waterborne polyurethane emulsion, 14% of [3- (6-amino hexylamino) propyl ] trimethoxy silane modified magnetic nano particles, 29% of tannic acid modified porous bentonite, 14% of a mixture of light calcium carbonate and barium sulfate (mass ratio of 4:1), 7% of an organic amine curing agent, 1% of dipropylene glycol dimethyl ether and 6% of water.
The specific preparation method of the fluorosilicone double-modified waterborne polyurethane is described in example 1.
The specific preparation method of the silane modified magnetic ferroferric oxide nanoparticle is described in example 10.
29 parts of fluorosilicone double-modified aqueous polyurethane emulsion is added into a high-speed dispersing machine, 29 parts of tannic acid modified porous bentonite is added under stirring and stirred for 0.5 hour, 14 parts of [3- (6-amino hexylamino) propyl ] trimethoxy silane modified magnetic nano particles are added and stirred for 0.5 hour, 14 parts of a mixture of light calcium carbonate and barium sulfate and 1 part of dipropylene glycol dimethyl ether are added and stirred for 1 hour, 7 parts of an organic amine curing agent is added and stirred for 0.5 hour, and finally 6 parts of deionized water is added and stirred for 20 minutes, so that the high-adhesion nano anti-corrosion heat-preservation integrated coating is obtained.
Comparative example 1
Adding 25 parts of fluorosilicone double-modified aqueous polyurethane emulsion into a high-speed dispersing machine, then adding 25 parts of unmodified hollow glass particles and stirring for 0.5 hour, then adding 14 parts of polyethyleneimine modified magnetic nano particles and stirring for 0.5 hour, then adding 20 parts of a mixture of light calcium carbonate and barium sulfate (mass ratio of 4:1) and 2 parts of dipropylene glycol dimethyl ether and stirring for 1 hour, then adding 8 parts of an organic amine curing agent and stirring for 0.5 hour, and finally adding 6 parts of deionized water and stirring for 20 minutes to obtain the coating.
Comparative example 2
Adding 25 parts of fluorosilicone double-modified aqueous polyurethane emulsion into a high-speed dispersing machine, adding 25 parts of tannic acid modified hollow glass particles, stirring for 0.5 hour, adding 34 parts of a mixture of light calcium carbonate and barium sulfate (mass ratio of 4:1) and 2 parts of dipropylene glycol dimethyl ether, continuously stirring for 1 hour, adding 8 parts of an organic amine curing agent, stirring for 0.5 hour, and finally adding 6 parts of deionized water, and stirring for 20 minutes to obtain the coating.
Comparative example 3
Adding 25 parts of fluorosilicone double-modified aqueous acrylic emulsion into a high-speed dispersing machine, adding 25 parts of tannic acid modified hollow glass particles, stirring for 0.5 hour, adding 14 parts of polyethyleneimine modified magnetic nano particles, continuously stirring for 0.5 hour, adding 20 parts of a mixture of light calcium carbonate and barium sulfate (mass ratio of 4:1) and 2 parts of dipropylene glycol dimethyl ether, continuously stirring for 1 hour, adding 8 parts of an organic amine curing agent, stirring for 0.5 hour, and finally adding 6 parts of deionized water, and stirring for 20 minutes to obtain the coating.
Comparative example 4
25 parts of aqueous acrylic emulsion, 32 parts of hollow glass particles and stirring for 0.5 hour, 27 parts of a mixture of light calcium carbonate and barium sulfate (mass ratio of 4:1) and 2 parts of dipropylene glycol dimethyl ether and stirring for 1 hour are added into a high-speed dispersing machine, 8 parts of an organic amine curing agent and stirring for 0.5 hour are added, and finally 6 parts of deionized water and stirring for 20 minutes are added to obtain the coating.
Test example 1 Performance test
The coatings obtained in examples 1 to 18 and comparative examples 1 to 4 were painted or sprayed on steel plates dried after wiping with ethanol, the thickness of the coating being 1.0mm, and the coatings were tested for Volatile Organic Compound (VOC) content (standard: GB/T34675-2017), salt spray resistance time (standard: GB/T1771-2007), thermal conductivity (standard: GB/T10294-2008, guard plate method) and adhesive strength (standard: GB/T5210-2006), respectively. The results are shown in Table 1.
TABLE 1 coating Performance test
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The present invention is, of course, capable of other embodiments and of being practiced in various modifications and alterations by those skilled in the art without departing from the spirit and substance of the invention, but it is intended to cover all such modifications and alterations as fall within the scope of the appended claims.
Claims (13)
1. The high-adhesion nano anti-corrosion heat-preservation integrated coating is characterized in that: the composite material comprises the following raw materials in parts by weight: 10-35 parts of fluorine-silicon double-modified waterborne polyurethane, 3-20 parts of magnetic nanoparticles, 10-55 parts of rust conversion agent modified heat insulation material, 3-25 parts of antirust pigment and filler, 3-10 parts of curing agent, 0.1-10 parts of auxiliary agent and 2-18 parts of water;
the magnetic nano particles are polymer modified ferroferric oxide nano particles;
in the magnetic nano particles, the polymer modification component is at least one of carboxyl polyethylene glycol hydroxyl, silane modification and polyethyleneimine;
in the heat insulating material modified by the rust conversion agent, the heat insulating material is at least one of hollow glass particles or porous bentonite;
in the rust conversion agent modified heat insulation material, the rust conversion agent modified component is at least one of tannic acid, gallic acid and tartaric acid;
the preparation method of the rust conversion agent modified heat insulation material comprises the following steps:
dissolving a rust conversion agent modification component by using a proper solvent, mixing with a heat insulation material, adding a catalyst, continuously stirring for 1-2 hours at 40-80 ℃, and separating and drying after the reaction is finished to obtain the modified rust conversion agent; wherein, the mass ratio of the rust conversion agent modifying component to the heat insulation material is 1: 2-20, wherein the catalyst is N, N' -dicyclohexylcarbodiimide.
2. The high-adhesion nano anti-corrosion heat-preservation integrated coating according to claim 1, which is characterized in that: the composite material comprises the following raw materials in parts by weight: 15-35 parts of fluorine-silicon double-modified waterborne polyurethane, 5-15 parts of magnetic nanoparticles, 10-50 parts of rust conversion agent modified heat insulation material, 3-20 parts of antirust pigment and filler, 5-10 parts of curing agent, 0.5-10 parts of auxiliary agent and 2-15 parts of water.
3. The high-adhesion nano-corrosion-resistant heat-insulating integrated coating according to claim 1 or 2, characterized in that: the particle size of the magnetic nano particles is 0.1-4 mu m.
4. The high-adhesion nano-corrosion-resistant heat-insulating integrated coating according to claim 1 or 2, characterized in that: in the magnetic nano particles, the molecular weight of the carboxyl polyethylene glycol hydroxyl is 600-5000.
5. The high-adhesion nano-corrosion-resistant heat-insulating integrated coating according to claim 1 or 2, characterized in that: in the magnetic nanoparticle, the molecular weight of the polyethyleneimine is 70000.
6. The high-adhesion nano-corrosion-resistant heat-insulating integrated coating according to claim 1 or 2, characterized in that: in the magnetic nano particle, the silane modifier is at least one of 3- [2- (2-amino ethyl amino) ethylamino ] propyl-trimethoxy silane, [8- (epoxypropyloxy) -n-octyl ] trimethoxy silane and [3- (6-amino hexyl amino) propyl ] trimethoxy silane.
7. The high-adhesion nano-corrosion-resistant heat-insulating integrated coating according to claim 6, wherein the coating is characterized in that: the preparation method of the silane modified ferroferric oxide nano-particles comprises the following steps: dispersing magnetic ferroferric oxide nano particles in a proper solvent, adding a silane modifier under stirring, uniformly mixing, adding a catalyst stannous octoate, reacting hydroxyl groups on the surfaces of the magnetic nano particles with silicon hydroxyl groups, and separating after the reaction is completed; wherein the magnetic ferroferric oxide nanoparticle: silane modifier: the mass ratio of the stannous isooctanoate catalyst is 1: 5-20: 0.3-0.5, and the reaction temperature is 25-60 ℃.
8. The high-adhesion nano anti-corrosion heat-preservation integrated coating according to claim 4, which is characterized in that: the preparation method of the carboxyl polyethylene glycol hydroxyl modified magnetic nanoparticle comprises the following steps: dispersing the magnetic ferroferric oxide nano particles coated with silicon dioxide in a proper solvent, adding carboxyl polyethylene glycol hydroxyl, CTAB and catalyst methylsulfonic acid under stirring to enable the hydroxyl on the surface of the magnetic nano particles to react with the carboxyl polyethylene glycol hydroxyl, and separating after the reaction is completed; wherein, the magnetic ferroferric oxide nano particles coated by silicon dioxide: carboxyl polyethylene glycol hydroxyl group: CTAB: the mass ratio of the catalyst methylsulfonic acid is 1: 5-25: 2-10: 0.3 to 0.5.
9. The high-adhesion nano-corrosion-resistant heat-insulating integrated coating according to claim 5, wherein the coating is characterized in that: the preparation method of the polyethyleneimine modified magnetic ferroferric oxide nanoparticle comprises the following steps: dispersing magnetic ferroferric oxide nano particles in a proper solvent, adding polyethyleneimine and catalyst methylsulfonic acid under stirring to enable hydroxyl groups on the surfaces of the magnetic nano particles to react with the polyethyleneimine, and separating after the reaction is completed; wherein, magnetic ferroferric oxide nano particles: polyethyleneimine: the mass ratio of the catalyst methylsulfonic acid is 1: 5-25: 0.1 to 2.
10. The high-adhesion nano-corrosion-resistant heat-insulating integrated coating according to claim 1 or 2, characterized in that: the antirust pigment and filler is at least one of titanium white, light calcium carbonate, carbon black, wollastonite powder, aluminum tripolyphosphate, zinc phosphate, talcum powder, mica powder, quartz powder, kaolin, wollastonite, dolomite, attapulgite, barium sulfate, calcium silicate and sodium aluminosilicate.
11. The high-adhesion nano-corrosion-resistant heat-insulating integrated coating according to claim 1 or 2, characterized in that: the auxiliary agent is at least one of propylene glycol butyl ether, dipropylene glycol methyl ether, ethylene glycol butyl ether, diethylene glycol butyl ether and dipropylene glycol dimethyl ether.
12. The high-adhesion nano-corrosion-resistant heat-insulating integrated coating according to claim 1 or 2, characterized in that: the curing agent is at least one of organic amine and silane.
13. The high-adhesion nano-corrosion-resistant heat-insulating integrated coating according to claim 1 or 2, characterized in that: the preparation method comprises the following steps: adding fluorine-silicon double-modified waterborne polyurethane into a high-speed dispersing machine, adding a rust conversion agent to modify a heat insulation material under a stirring state, stirring uniformly, adding magnetic nanoparticles, stirring continuously until the mixture is uniformly dispersed, adding an antirust pigment filler and an auxiliary agent, stirring uniformly continuously, adding a curing agent, stirring uniformly, and finally adding water and stirring uniformly to obtain the high-adhesion nano anti-corrosion heat-insulation integrated coating.
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