CN115093785A - Weather-proof double-component solvent-free polyurethane coating for pipeline joint coating and preparation method thereof - Google Patents
Weather-proof double-component solvent-free polyurethane coating for pipeline joint coating and preparation method thereof Download PDFInfo
- Publication number
- CN115093785A CN115093785A CN202210926169.4A CN202210926169A CN115093785A CN 115093785 A CN115093785 A CN 115093785A CN 202210926169 A CN202210926169 A CN 202210926169A CN 115093785 A CN115093785 A CN 115093785A
- Authority
- CN
- China
- Prior art keywords
- component
- coating
- weather
- polyester polyol
- free polyurethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 73
- 239000011248 coating agent Substances 0.000 title claims abstract description 70
- 239000011527 polyurethane coating Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 47
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 38
- 239000000843 powder Substances 0.000 claims abstract description 38
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims abstract description 20
- 239000000945 filler Substances 0.000 claims abstract description 19
- 239000003822 epoxy resin Substances 0.000 claims abstract description 17
- 239000000049 pigment Substances 0.000 claims abstract description 17
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 17
- 229920000734 polysilsesquioxane polymer Polymers 0.000 claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 14
- 239000002250 absorbent Substances 0.000 claims abstract description 13
- 230000002745 absorbent Effects 0.000 claims abstract description 13
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052627 muscovite Inorganic materials 0.000 claims abstract description 13
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims description 66
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 44
- 238000000227 grinding Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 20
- 239000004576 sand Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 239000004411 aluminium Substances 0.000 claims description 13
- -1 aminopropyl Chemical group 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 8
- 239000004593 Epoxy Substances 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 4
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229920006217 cellulose acetate butyrate Polymers 0.000 claims description 3
- VLJQDHDVZJXNQL-UHFFFAOYSA-N 4-methyl-n-(oxomethylidene)benzenesulfonamide Chemical compound CC1=CC=C(S(=O)(=O)N=C=O)C=C1 VLJQDHDVZJXNQL-UHFFFAOYSA-N 0.000 claims description 2
- WYNCHZVNFNFDNH-UHFFFAOYSA-N Oxazolidine Chemical compound C1COCN1 WYNCHZVNFNFDNH-UHFFFAOYSA-N 0.000 claims description 2
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 239000007822 coupling agent Substances 0.000 claims description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 150000002193 fatty amides Chemical class 0.000 claims description 2
- DMTRWFMFBIMXBX-UHFFFAOYSA-L lead(2+);6-methylheptanoate Chemical compound [Pb+2].CC(C)CCCCC([O-])=O.CC(C)CCCCC([O-])=O DMTRWFMFBIMXBX-UHFFFAOYSA-L 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000002808 molecular sieve Substances 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 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
- 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 2
- GKASDNZWUGIAMG-UHFFFAOYSA-N triethyl orthoformate Chemical compound CCOC(OCC)OCC GKASDNZWUGIAMG-UHFFFAOYSA-N 0.000 claims description 2
- ADJMNWKZSCQHPS-UHFFFAOYSA-L zinc;6-methylheptanoate Chemical compound [Zn+2].CC(C)CCCCC([O-])=O.CC(C)CCCCC([O-])=O ADJMNWKZSCQHPS-UHFFFAOYSA-L 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 5
- 238000002791 soaking Methods 0.000 abstract description 5
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 24
- 238000004806 packaging method and process Methods 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 18
- 238000007599 discharging Methods 0.000 description 17
- 230000006872 improvement Effects 0.000 description 17
- 235000010215 titanium dioxide Nutrition 0.000 description 17
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 15
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 15
- 239000012948 isocyanate Substances 0.000 description 13
- 150000002513 isocyanates Chemical class 0.000 description 10
- 238000001914 filtration Methods 0.000 description 9
- 239000010445 mica Substances 0.000 description 8
- 229910052618 mica group Inorganic materials 0.000 description 8
- 238000005086 pumping Methods 0.000 description 7
- YXRKNIZYMIXSAD-UHFFFAOYSA-N 1,6-diisocyanatohexane Chemical compound O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O YXRKNIZYMIXSAD-UHFFFAOYSA-N 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005536 corrosion prevention Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 229920005862 polyol Polymers 0.000 description 4
- 150000003077 polyols Chemical class 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004383 yellowing Methods 0.000 description 4
- IZXIZTKNFFYFOF-UHFFFAOYSA-N 2-Oxazolidone Chemical compound O=C1NCCO1 IZXIZTKNFFYFOF-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 125000000623 heterocyclic group Chemical group 0.000 description 3
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000013638 trimer Substances 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- VPKDCDLSJZCGKE-UHFFFAOYSA-N carbodiimide group Chemical group N=C=N VPKDCDLSJZCGKE-UHFFFAOYSA-N 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012767 functional filler Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000036561 sun exposure Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4045—Mixtures of compounds of group C08G18/58 with other macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4202—Two or more polyesters of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/58—Epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/61—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/7806—Nitrogen containing -N-C=0 groups
- C08G18/7843—Nitrogen containing -N-C=0 groups containing urethane groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/327—Aluminium phosphate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention provides a weather-proof double-component solvent-free polyurethane coating for pipeline joint coating and a preparation method thereof, wherein the coating comprises a component A and a component B, wherein the component A comprises the following components: 35-45% of high-hydroxyl-value modified polyester polyol, 5-12% of low-hydroxyl-value modified polyester polyol, 5-12% of epoxy resin, 1-5% of cage polysilsesquioxane, 15-20% of active silica powder, 8-15% of titanium dioxide, 5-10% of aluminum dihydrogen tripolyphosphate, 5-10% of muscovite powder, 0.2-0.5% of dispersing agent, 0.2-0.5% of flatting agent, 0.3-0.7% of defoaming agent, 0.3-0.8% of water absorbent, 0.5-1.2% of catalyst and 0.1-0.7% of pigment filler; and B component: 55-75% of HDI tripolymer and 25-45% of modified liquefied MDI. The coating provided by the technical scheme of the invention has good weather resistance, is not easy to yellow after being exposed to the sun for a long time, and has excellent low-temperature bending resistance and hot water soaking resistance.
Description
Technical Field
The invention belongs to the technical field of oil and gas pipeline corrosion prevention, and particularly relates to a weather-resistant double-component solvent-free polyurethane coating for a pipeline joint coating and a preparation method thereof.
Background
The 3PE (polyolefin with a three-layer structure) coating is used as a most used and well-received pipeline coating system in China in a large scale, and a joint coating material matched with the coating is rapidly developed. At present, most of the 3PE pipeline joint coating anticorrosive materials at home and abroad use radiation crosslinking polyethylene heat-shrinkable tapes/sleeves, which are limited by field joint coating operation environments, operation equipment and material technologies, the polyethylene heat-shrinkable tapes/sleeves are mainly installed by manual baking operation, and the joint coating quality is difficult to guarantee by the mode. In addition, in recent years, through internal detection and excavation verification of in-service pipelines, the bonding failure of a part of heat-shrinkable sleeve joint coating anticorrosive layers is found, the bonding of a heat-shrinkable belt and a pipe body 3PE anticorrosive layer is more problematic, and the surface of a part of joint coating steel pipes is corroded. The problem of repaired mouth has been the focus and the difficulty of the corrosion prevention of 3PE pipeline.
In recent years, various pipeline joint coating materials are arranged in a hundred flowers, and various novel joint coating materials are tried on pipeline joint coatings in a small range. The liquid coating for repairing the opening is used as a novel opening repairing material, has the advantages of simple coating process, easy repairing, reliable inspection result, no cathodic protection current shielding and the like, and is rapidly developed in the field of internal pipeline opening repairing corrosion prevention. The liquid joint coating is mainly divided into two types, one type is solvent-free epoxy coating, the other type is solvent-free polyurethane coating, and the liquid joint coating can be used for joint coating anticorrosion of 3PE pipelines. The solvent-free polyurethane coating can be coated by adopting an automatic spraying joint coating technology due to controllable viscosity, so that the corrosion resistance quality of the joint coating of the pipeline is improved, and the solvent-free polyurethane coating is a new direction for the development of the pipeline corrosion resistance joint coating technology.
At present, a two-component solvent-free polyurethane coating for preventing corrosion of a pipeline joint is generally composed of a component A consisting of polyether polyol, a filler, a water absorbent, a catalyst, a functional assistant and the like, and a component B consisting of polyisocyanate or prepolymer containing isocyanate groups and the like. With the popularization and the application of the two-component solvent-free polyurethane coating in the field of oil and gas pipeline joint coating, the existing two-component solvent-free polyurethane coating on the market has the following defects:
firstly, the commonly used bi-component solvent-free polyurethane coating for pipeline joint coating adopts polyether polyol containing secondary hydroxyl as main film-forming resin, so that methylene containing a large amount of ether bonds and ether bonds in a cured product is easy to break chains under the irradiation of sunlight for a long time, the weather resistance is poor, and the surface of the cured product is easy to pulverize;
secondly, the common double-component solvent-free polyurethane coating for pipeline joint coating is high in rigidity, high in brittleness and low in elongation at break after being cured, and the place connected with 3PE is easy to crack in places with large day and night temperature difference, so that corrosion resistance is lost;
③ in order to improve the reaction speed, the common double-component solvent-free polyurethane coating for pipeline joint coating mostly adopts aromatic isocyanate or a modifier thereof as the component B, which causes poor weather resistance and easy yellowing of the coating after outdoor exposure.
Disclosure of Invention
Aiming at the technical problems, the invention discloses a weather-resistant double-component solvent-free polyurethane coating for pipeline joint coating and a preparation method thereof, and solves the problems of poor weather resistance, easy pulverization and yellowing caused by exposure to the sun, poor low-temperature flexibility, easy cracking and the like in the prior art.
In contrast, the technical scheme adopted by the invention is as follows:
a weather-proof double-component solvent-free polyurethane coating for pipeline joint coating comprises a component A and a component B,
the component A comprises the following components in percentage by mass: 35-45% of high-hydroxyl-value modified polyester polyol, 5-12% of low-hydroxyl-value modified polyester polyol, 5-12% of epoxy resin, 1-5% of cage polysilsesquioxane, 15-20% of active silica powder, 8-15% of titanium dioxide, 5-10% of aluminum dihydrogen tripolyphosphate, 5-10% of muscovite powder, 0.2-0.5% of dispersing agent, 0.2-0.5% of flatting agent, 0.3-0.7% of defoaming agent, 0.3-0.8% of water absorbent, 0.5-1.2% of catalyst and 0.1-0.7% of pigment filler;
wherein the hydroxyl value of the high hydroxyl value modified polyester polyol is not less than 250mgKOH/g, and the hydroxyl value of the low hydroxyl value modified polyester polyol is not more than 200 mgKOH/g;
the component B comprises the following components in percentage by mass: 55-75% of HDI (hexamethylene diisocyanate) trimer and 25-45% of modified liquefied MDI (4, 4' -diphenylmethane diisocyanate);
the mass ratio of the component A to the component B is 100: 30-50.
In the prior art, liquefied MDI (4,4 '-diphenylmethane diisocyanate) is modified by introducing a urethane or carbodiimide group into 4, 4' -MDI to obtain modified liquefied MDI.
The coating adopting the technical scheme has good weather resistance, is not easy to pulverize and yellow when exposed to the sun, has good low-temperature flexibility and is not easy to crack, has good hot water soaking resistance and high bonding strength with steel/PP/PE, and can be used for automatic spraying joint coating.
The specific analysis is as follows:
the branched modified polyester polyol with high and low hydroxyl values is matched in a certain proportion to be used as main film-forming resin, so that the coating is low in viscosity and can be used for automatic spraying. And because of adopting polyester polyol, contain little ether linkage in polyurethane products or only, the molecular structure of the products is stable, the product is weatherable, can not pulverize even insolate for a long time, the yellowing resistance is good, can not change color even insolate for a long time.
The curing agent compounded by aliphatic HDI tripolymer and modified liquefied MDI (4, 4' -diphenylmethane diisocyanate) is used as the curing agent of the polyurethane coating, and the polyurethane coating prepared from the aliphatic isocyanate does not contain benzene rings due to the molecular structure, so that the product has good weather resistance, is not easy to yellow and pulverize, but has higher price and reaction speed lower than that of aromatic isocyanate. Through experiments, the curing agent compounded by aliphatic isocyanate HDI (hexamethylene diisocyanate) tripolymer and aromatic modified liquefied MDI (4, 4' -diphenylmethane diisocyanate) is selected, so that the weather resistance of the polyurethane coating can be ensured, and the phenomenon that the coating reacts with water vapor in the air to form bubbles to influence the coating quality and the anticorrosion quality due to too low reaction rate is avoided.
The cage type polysilsesquioxane can react with isocyanate to produce substituted urea, a cage type framework structure of the cage type polysilsesquioxane is introduced into a polyurethane coating system, cage type polysilsesquioxane nano particles can stop the development of micro crack tips and can initiate silver veins or shear bands or molecular chain rearrangement, and polyurethane coating cured materials are prevented from cracking at a position connected with 3PE, so that corrosion resistance failure is avoided.
The epoxy resin reacts with isocyanate under the action of a catalyst to generate a condensate containing isocyanurate six-membered ring and oxazolidone five-membered ring rigid heterocyclic structure. In the technical scheme, a small amount of epoxy resin is added as film-forming resin, isocyanate reacts with epoxy and polyol at the same time, and an isocyanurate six-membered ring and oxazolidinone five-membered ring rigid heterocyclic structure is introduced into a polyurethane chain segment, so that the glass transition temperature of the polyurethane coating can be increased, and the heat resistance and the high-temperature (80 ℃) hot water soaking resistance of the polyurethane coating are improved.
The active silicon micro powder has the advantages of high hardness, low heat conductivity coefficient, high temperature resistance, stable insulation and chemical properties and the like, and can be used in a solvent-free polyurethane coating to improve the mechanical properties of the coating, such as hardness, impact resistance and the like, and improve the water absorption rate, the electrical strength, the volume resistivity and the like of the coating. Titanium dioxide as a white pigment has the characteristics of higher decoloring capacity and covering power, good whiteness, light resistance, sun resistance, heat resistance and the like, and plays the roles of covering, decoloring and protecting in the coating. The tripolyphosphate radical ions in the aluminium dihydrogen tripolyphosphate molecules can generate chelate with metal ions, an excellent passive film can be formed on the surface of the coated metal, and the corrosion of materials such as steel, light metal and the like is greatly inhibited. The muscovite has high electrical insulation, heat resistance and good mechanical property, and can be used as a functional filler in the coating to improve the toughness, mechanical strength and heat resistance of the coating.
As a further improvement of the invention, the component A comprises the following components in percentage by mass: 38-42% of high hydroxyl value modified polyester polyol, 6-10% of low hydroxyl value modified polyester polyol, 6-10% of epoxy resin, 2-4% of cage polysilsesquioxane, 15-18% of active silica powder, 8-10% of titanium dioxide, 5-8% of aluminum dihydrogen tripolyphosphate, 5-8% of muscovite powder, 0.2-0.4% of dispersing agent, 0.2-0.4% of flatting agent, 0.3-0.5% of defoaming agent, 0.3-0.6% of water absorbent, 0.6-1.0% of catalyst and 0.3-0.6% of pigment filler;
the component B comprises the following components in percentage by mass: 60-70% of HDI tripolymer and 30-40% of modified liquefied MDI.
As a further improvement of the invention, the mass ratio of the component A to the component B is 100: 35-45.
As a further improvement of the invention, the hydroxyl value of the high hydroxyl value modified polyester polyol is 250-350 mgKOH/g, and the viscosity is 500-1500 mPa.s @25 ℃. The selectable brands are: of basf
750, Hensmei' s
1364, etc.
As a further improvement of the invention, the low-hydroxyl-value modified polyester polyol has a hydroxyl value of 100-200 mgKOH/g and a viscosity of 3000-5000 mPa.s @25 ℃. The selectable brands are as follows: of Basff
805 of Henshimi
1154, and the like.
As a further improvement of the invention, the mass ratio of the high hydroxyl value modified polyester polyol to the low hydroxyl value modified polyester polyol is 3-9: 1.
As a further improvement of the invention, the epoxy resin is bisphenol A type epoxy resin, and the epoxy equivalent is 200-250 g/eq. By adopting the technical scheme, a small amount of long-chain epoxy resin is adopted as film-forming resin, isocyanate reacts with epoxy and polyol at the same time, and an isocyanurate six-membered ring and oxazolidone five-membered ring rigid heterocyclic structure is introduced into a polyurethane chain segment, so that the glass transition temperature of the polyurethane coating can be improved, and the heat resistance and high-temperature (80 ℃) hot water soaking resistance of the polyurethane coating are improved. The epoxy equivalent is 200-250 g/eq, and the selectable brands are E-44, E-42 and the like.
As a further improvement of the HDI tripolymer, the content of NCO (isocyanate) of the HDI tripolymer is 19-22%, and the viscosity is 400-2000 mPa.s @23 ℃. The selectable brands are as follows: HI-190 of basf, HXR-100 of Tosoh, HT-100 of Wanhua chemistry, etc.
As a further improvement of the invention, the modified liquefied MDI has NCO (isocyanate) content of 28-32% and viscosity of 20-220 mPa.s @23 ℃. The selectable brands are as follows: MM103C by Basff, 44V20L by Kesimo, MDI-100L by Wanhua chemical, etc.
As a further improvement of the invention, the cage polysilsesquioxane is aminopropyl heptyl-cage polysilsesquioxane. The aminopropyl heptyl cage-type polysilsesquioxane as a novel organic-inorganic hybrid core-shell structure nano material can react with isocyanate to produce substituted urea.
As a further improvement of the invention, the active silicon micropowder is silicon micropowder modified by a silane coupling agent or a titanate coupling agent;
in a further improvement of the invention, the dispersant is one or a mixture of two or more of fatty acids, fatty amides and esters.
As a further improvement of the invention, the leveling agent is one or a mixture of more than two of Cellulose Acetate Butyrate (CAB), polydimethylsiloxane, polyether polyester modified organic siloxane and alkyl modified organic siloxane;
as a further improvement of the invention, the defoaming agent is one or a mixture of more than two of organic silicon and polyether modified organic silicon;
as a further improvement of the invention, the water absorbent is one or a mixture of more than two of molecular sieve, oxazolidine, triethyl orthoformate and p-methyl benzenesulfonyl isocyanate;
as a further improvement of the invention, the catalyst is one or a mixture of more than two of dibutyltin dilaurate, stannous octoate, lead isooctanoate and zinc isooctanoate.
As a further improvement of the invention, the particle size of the active silicon micro powder is 800-1200 meshes; the titanium dioxide is rutile type titanium dioxide of 800 meshes to 1000 meshes; the particle size of the aluminum dihydrogen tripolyphosphate is 800 meshes to 1000 meshes; the particle size of the muscovite powder is 800 meshes to 1000 meshes.
The invention discloses a preparation method of the weather-proof double-component solvent-free polyurethane coating for the pipeline joint coating, which comprises the following steps:
adding high-hydroxyl-value modified polyester polyol, low-hydroxyl-value modified polyester polyol and epoxy resin into a stirring tank according to a weight ratio, heating to 40-60 ℃, uniformly stirring, then adding cage-type polysilsesquioxane, a leveling agent, a dispersing agent, a defoaming agent, a water absorbent and a catalyst, stirring for 10-15 minutes, finally adding active silica micropowder, titanium dioxide, aluminium dihydrogen tripolyphosphate, muscovite powder and pigment filler, stirring for 40-50 minutes, and then grinding to obtain a component A;
proportionally adding HDI (hexamethylene diisocyanate) trimer and modified liquefied MDI (4, 4' -diphenylmethane diisocyanate) into a stirring tank for stirring according to the weight ratio, and uniformly mixing to obtain a component B.
As a further improvement of the invention, the fineness of grinding is required to be less than 100um, the materials are discharged and packaged according to a proportion after being filtered by a filter screen of 80 meshes, and the materials with the particle size of more than 100um are pumped back to a sand mill for grinding until the fineness reaches the requirement.
Further, the preparation method of the component A comprises the following steps: adding the high hydroxyl value modified polyester polyol, the low hydroxyl value modified polyester polyol and the epoxy resin into a stirring tank according to the weight ratio, heating to 50 ℃, stirring for 10-15 minutes at the stirring speed of 1000 rpm, stirring evenly, slowing down the stirring speed, stirring at 200 r/min, adding cage type polysilsesquioxane, a flatting agent, a dispersing agent, a defoaming agent, a water absorbent and a catalyst, stirring for 10 min, finally sequentially adding active silica micro powder, titanium dioxide, aluminium dihydrogen tripolyphosphate, muscovite powder and pigment filler, increasing the stirring speed, rotating at 500 r/min, stirring for 40-50 min, grinding with a sand mill until the fineness is below 100 μm, filtering with 80 mesh filter screen, packaging at a certain proportion to obtain powder of above 100 μm, grinding until the fineness reaches the required fineness, and packaging at a certain proportion.
Further, the preparation method of the component A comprises the following steps: proportionally adding HDI (hexamethylene diisocyanate) trimer and modified liquefied MDI (4, 4' -diphenylmethane diisocyanate) into a stirring tank, stirring at the speed of 300 revolutions per minute for 20min, uniformly mixing, and packaging proportionally.
When the coating is used, the component A and the component B are mixed and coated, and the coating is cured to form an anticorrosive layer.
Compared with the prior art, the invention has the beneficial effects that:
first, compared with the conventional polyurethane joint coating anticorrosive paint, the weather-resistant double-component solvent-free polyurethane paint for the pipeline joint coating has the characteristics of good weather resistance, long-time exposure, yellowing resistance, no pulverization and the like, and can be used for pipeline joint coating and corrosion prevention of metal surfaces of a storage tank, a steel structure and the like.
Secondly, the weather-resistant two-component solvent-free polyurethane coating for the pipeline joint coating has excellent low-temperature bending resistance, can resist bending at 1.5 ℃ at the low temperature of-20 ℃ without cracks, and can not crack after being subjected to more than 20 cycles of cold and hot impact.
Thirdly, the weather-resistant bi-component solvent-free polyurethane coating for the pipeline joint coating has excellent hot water soaking resistance, can be soaked in high-temperature hot water at the temperature of 80 ℃ for a long time, and does not generate large attenuation in performance.
Detailed Description
Preferred embodiments of the present invention are described in further detail below.
Example 1
A weather-resistant bi-component solvent-free polyurethane coating for pipeline joint coating comprises a component A and a component B, and is prepared by the following steps:
(1) preparing a component A: adding 35 parts of high hydroxyl value modified polyester polyol (Sovermol 750 of basf, hydroxyl value of 310-, 0.8 part of catalyst (New classic chemistry UL-54), stirring for 10 minutes, finally sequentially adding 15 parts of active silica powder, 9 parts of titanium dioxide, 8 parts of aluminium dihydrogen tripolyphosphate, 5 parts of white mica powder and 0.6 part of pigment and filler, improving the stirring speed, stirring for 40-50 minutes at the rotation speed of 500 plus materials/minute, then grinding by a sand mill until the fineness is below 100 mu m, filtering by a 80-mesh filter screen, discharging and packaging according to a proportion, discharging more than 100 mu m, pumping back to the sand mill and grinding until the fineness meets the requirement, and discharging and packaging according to a proportion.
(2) B, preparation of a component: adding 55 parts of HDI tripolymer (HI-190 with NCO (isocyanate) content of 19-22% and viscosity of 400-2000 mPa.s @23 ℃) and 45 parts of modified liquefied MDI (MM103C with NCO (isocyanate) content of 28-32% and viscosity of 20-220 mPa.s @23 ℃) into a stirring tank according to weight ratio, stirring at the speed of 300 revolutions per minute for 20min, uniformly mixing and packaging according to proportion.
(3) The weight ratio of the component A to the component B is 100: 36.
Example 2
A weather-resistant bi-component solvent-free polyurethane coating for pipeline joint coating comprises a component A and a component B, and is prepared by the following steps:
(1) preparation of a component A: 40 parts of high hydroxyl value modified polyester polyol (Sovermol 750, hydroxyl value of 310-, stirring for 10 minutes, finally sequentially adding 16 parts of active silica powder, 8 parts of titanium dioxide, 7 parts of aluminium dihydrogen tripolyphosphate, 7 parts of white mica powder and 0.5 part of pigment and filler, increasing the stirring speed, stirring for 40-50 minutes at the rotation speed of 500 plus materials/minute, then grinding by a sand mill until the fineness is below 100 mu m, filtering by a 80-mesh filter screen, discharging and packaging according to a proportion, pumping back to the sand mill for grinding until the fineness meets the requirement, and discharging and packaging according to a proportion.
(2) B, preparation of a component: 65 parts of HDI tripolymer (HI-190) and 35 parts of modified liquefied MDI (MM103C) are added into a stirring tank according to the weight ratio, stirred for 20min at the speed of 300 r/min, and packaged according to the proportion after being uniformly mixed.
(3) The weight ratio of the component A to the component B is 100: 40.
Example 3
A weather-resistant bi-component solvent-free polyurethane coating for pipeline joint coating comprises a component A and a component B, and is prepared by the following steps:
(1) preparation of a component A: adding 45 parts of high hydroxyl value modified polyester polyol (Sovermol 750 of basf, hydroxyl value of 310-, stirring for 10 minutes, finally sequentially adding 19 parts of active silica powder, 7 parts of titanium dioxide, 5 parts of aluminium dihydrogen tripolyphosphate, 8 parts of white mica powder and 0.4 part of pigment and filler, increasing the stirring speed, stirring for 40-50 minutes at the rotation speed of 500 plus materials for 600 revolutions per minute, then grinding by a sand mill until the fineness is below 100 mu m, filtering by a 80-mesh filter screen, discharging, packaging in proportion, above 100 mu m, pumping back to the sand mill, grinding again until the fineness reaches the requirement, discharging and packaging in proportion.
(2) B, preparation of a component: 75 parts of HDI tripolymer (HXR-100) and 25 parts of modified liquefied MDI (44V20L) are added into a stirring tank according to the weight ratio, stirred for 20min at the speed of 300 revolutions per minute, and packaged according to the proportion after being uniformly mixed.
(3) The weight ratio of the component A to the component B is 100: 45.
Comparative example 1
A polyurethane coating comprises a component A and a component B, and is prepared by the following steps:
(1) preparation of a component A: 40 parts of high hydroxyl value modified polyester polyol (Sovermol 750, hydroxyl value of 310-, and finally, sequentially adding 19 parts of active silicon micropowder, 8 parts of titanium dioxide, 7 parts of aluminium dihydrogen tripolyphosphate, 7 parts of muscovite powder and 0.5 part of pigment and filler, increasing the stirring speed, stirring at the rotation speed of 500 plus materials for 600 revolutions per minute for 40-50 minutes, then grinding by using a sand mill until the fineness is below 100 microns, filtering by using a 80-mesh filter screen, discharging, packaging in proportion, above 100 microns, pumping back to the sand mill, grinding again until the fineness reaches the requirement, discharging and packaging in proportion.
(2) B, preparation of a component: adding 65 parts of HDI trimer (HI-190) and 35 parts of modified liquefied MDI (MM103C) into a stirring tank according to the weight ratio, stirring at the speed of 300 revolutions per minute for 20min, uniformly mixing, and packaging according to the proportion.
(3) The weight ratio of the component A to the component B is 100: 40.
Comparative example 2
A polyurethane coating comprises a component A and a component B, and is prepared by the following steps:
(1) preparation of a component A: 45 parts of high hydroxyl value modified polyester polyol (Sovermol 750, hydroxyl value of 310-, stirring for 10 minutes, finally sequentially adding 19 parts of active silica powder, 7 parts of titanium dioxide, 5 parts of aluminium dihydrogen tripolyphosphate, 8 parts of white mica powder and 0.4 part of pigment and filler, increasing the stirring speed, stirring for 40-50 minutes at the rotation speed of 500 plus materials for 600 revolutions per minute, then grinding by a sand mill until the fineness is below 100 mu m, filtering by a 80-mesh filter screen, discharging, packaging in proportion, above 100 mu m, pumping back to the sand mill, grinding again until the fineness reaches the requirement, discharging and packaging in proportion.
(2) B, preparation of a component: 72 parts of HDI trimer (HI-190) and 28 parts of modified liquefied MDI (MM103C) are added into a stirring tank according to the weight ratio, stirred for 20min at the speed of 300 r/min, and packaged according to the proportion after being uniformly mixed.
(3) The weight ratio of the component A to the component B is 100: 42.
Comparative example 3
A polyurethane coating comprises a component A and a component B, and is prepared by the following steps:
(1) preparation of a component A: 32 parts of high hydroxyl value modified polyester polyol (Sovermol 750, hydroxyl value of 310-, stirring for 10 minutes, finally sequentially adding 17 parts of active silica powder, 9 parts of titanium dioxide, 8 parts of aluminium dihydrogen tripolyphosphate, 5 parts of white mica powder and 0.5 part of pigment and filler, increasing the stirring speed, stirring for 40-50 minutes at the rotation speed of 500 plus materials for 600 revolutions per minute, then grinding by a sand mill until the fineness is below 100 mu m, filtering by a 80-mesh filter screen, discharging, packaging in proportion, above 100 mu m, pumping back to the sand mill, grinding again until the fineness reaches the requirement, discharging and packaging in proportion.
(2) B, preparation of a component: 54 parts of HDI trimer (HI-190) and 46 parts of modified liquefied MDI (MM103C) are added into a stirring tank according to the weight ratio, stirred for 20min at the speed of 300 r/min, and packaged according to the proportion after being uniformly mixed.
(3) The weight ratio of the component A to the component B is 100: 35.
Comparative example 4
A polyurethane coating comprises a component A and a component B, and is prepared by the following steps:
(1) preparation of a component A: 50 parts of high hydroxyl value modified polyester polyol (Sovermol 750, hydroxyl value of 310-, 7 parts of titanium dioxide, 5 parts of aluminium dihydrogen tripolyphosphate, 8 parts of muscovite powder and 0.4 part of pigment and filler, increasing the stirring speed, stirring at the rotation speed of 500 plus 600 revolutions per minute for 40-50 minutes, then grinding by a sand mill until the fineness is below 100 mu m, filtering by a 80-mesh filter screen, discharging, packaging in proportion, more than 100 mu m, pumping back to the sand mill, grinding until the fineness meets the requirement, and discharging and packaging in proportion.
(2) B, preparation of a component: 81 parts of HDI trimer (HI-190) and 19 parts of modified liquefied MDI (MM103C) are added into a stirring tank according to the weight ratio, stirred for 20min at the speed of 300 r/min, and packaged according to the proportion after being uniformly mixed.
(3) The weight ratio of the component A to the component B is 100: 44.
Comparative example 5
A polyurethane coating comprises a component A and a component B, and is prepared by the following steps:
(1) preparation of a component A: adding 0 part of high hydroxyl value modified polyester polyol (Sovermol 750), 44 parts of low hydroxyl value modified polyester polyol (Sovermol805 with hydroxyl value of 200-210mgKOH/g and viscosity of 2800-4000mPa.s25 ℃) and 12 parts of epoxy resin (E-42 with epoxy equivalent of 180-250 g/eq) into a stirring tank in sequence, heating to 50 ℃, stirring for 10-15 minutes at the stirring speed of 1000 revolutions/minute, slowing down the stirring speed after stirring uniformly, stirring for 200 revolutions/minute, adding 2 parts of aminopropyl heptyl cage-type polysilsesquioxane, 0.4 part of dispersing agent (Ekov sodium 5207), 0.4 part of flatting agent (Basfv-3740 EH), 0.4 part of defoaming agent (Effv card 2722), 0.4 part of water absorbent (Fuxi TI), 1.0 part of new classical chemical catalyst (UL-54), stirring for 10 minutes, and finally adding 19 parts of active silicon micropowder in sequence, 7 parts of titanium dioxide, 5 parts of aluminium dihydrogen tripolyphosphate, 8 parts of white mica powder and 0.4 part of pigment and filler, improving the stirring speed, stirring at the rotation speed of 500-.
(2) B, preparation of a component: 25 parts of HDI trimer (HI-190) and 75 parts of modified liquefied MDI (MM103C) are added into a stirring tank according to the weight ratio, stirred for 20min at the speed of 300 revolutions per minute, and packaged according to the proportion after being uniformly mixed.
(3) The weight ratio of the component A to the component B is 100: 32.
Comparative example 6
A polyurethane coating comprises a component A and a component B, and is prepared by the following steps:
(1) preparation of a component A: 40 parts of high hydroxyl value modified polyester polyol (Sovermol 750, hydroxyl value of 310-, stirring for 10 minutes, finally sequentially adding 19 parts of active silica powder, 7 parts of titanium dioxide, 5 parts of aluminium dihydrogen tripolyphosphate, 8 parts of white mica powder and 0.4 part of pigment and filler, increasing the stirring speed, stirring for 40-50 minutes at the rotation speed of 500 plus materials/minute, then grinding by a sand mill until the fineness is below 100 mu m, filtering by a 80-mesh filter screen, discharging and packaging according to a proportion, drawing back to the sand mill for grinding until the fineness meets the requirement, and then discharging and packaging according to a proportion.
(2) B, preparation of a component: adding 65 parts of HDI trimer (HI-190) and 35 parts of modified liquefied MDI (MM103C) into a stirring tank according to the weight ratio, stirring at the speed of 300 revolutions per minute for 20min, uniformly mixing, and packaging according to the proportion.
(3) The weight ratio of the component A to the component B is 100: 41.
According to the requirements of the industry and customers, the performance indexes and the test methods of the weather-resistant two-component solvent-free polyurethane coating for pipeline joint coating are shown in table 1.
TABLE 1 technical indices of weather-resistant two-component solvent-free polyurethane coating for pipeline joint coating
A comparative table of the formulations of the above examples and comparative examples is shown in Table 2.
TABLE 2 comparative formulation tables for examples and comparative examples
| Example 1 | Example 2 | Examples3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | Comparative example 6 | |
| High hydroxyl number | 35 | 40 | 45 | 40 | 45 | 32 | 50 | 0 | 40 |
| Low hydroxyl number | 10 | 8 | 5 | 8 | 8 | 10 | 0 | 44 | 8 |
| Epoxy resin | 11 | 8 | 6 | 8 | 3 | 12 | 6 | 12 | (E-51)8 |
| Siloxanes | 4 | 3 | 2 | 0 | 2 | 4 | 2 | 2 | 2 |
| Dispersing agent | 0.2 | 0.3 | 0.4 | 0.3 | 0.4 | 0.3 | 0.4 | 0.4 | 0.4 |
| Leveling agent | 0.5 | 0.3 | 0.4 | 0.3 | 0.4 | 0.3 | 0.4 | 0.4 | 0.4 |
| Defoaming agent | 0.3 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
| Water absorbent | 0.6 | 0.5 | 0.4 | 0.5 | 0.4 | 0.5 | 0.4 | 0.4 | 0.4 |
| Catalyst and process for producing the same | 0.8 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Silicon micropowder | 15 | 16 | 19 | 19 | 19 | 17 | 19 | 19 | 19 |
| Titanium white powder | 9 | 8 | 7 | 8 | 7 | 9 | 7 | 7 | 7 |
| Aluminum dihydrogen | 8 | 7 | 5 | 7 | 5 | 8 | 5 | 5 | 5 |
| Mica powder | 5 | 7 | 8 | 7 | 8 | 5 | 8 | 8 | 8 |
| Filler material | 0.6 | 0.5 | 0.4 | 0.5 | 0.4 | 0.5 | 0.4 | 0.4 | 0.4 |
| Ratio of A to B | 100∶36 | 100∶40 | 100∶45 | 100∶40 | 100∶42 | 100∶35 | 100∶44 | 100∶32 | 100∶41 |
The above examples and comparative examples were tested according to the requirements of table 1, and the results are shown in table 3.
TABLE 3 comparison of the properties of the examples and comparative examples
As can be seen from the comparison of the properties in Table 3, the coating prepared by the formulation of the embodiment of the present invention has the advantages of no cracking of the coating, sun exposure resistance, no color change, no pulverization, good flexibility, 1.5-degree bending resistance, no crack, no leak point, and adhesion
The force, impact resistance, hardness, etc. can all meet the requirements, and table 4 is a table of similar coating properties in the market.
TABLE 4 comparison of the properties of similar coatings on the market
As can be seen from the comparison of the performances of the above table 4 and the similar coating on the market, the coating prepared by the formulation of the embodiment of the invention has the advantages of no cracking of the coating, sunlight exposure resistance, no color change on the surface, no pulverization, good flexibility, 1.5-degree bending resistance, no crack, no leak point, and the adhesion, the impact resistance, the hardness and the like which can meet the standard requirements.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The weather-resistant two-component solvent-free polyurethane coating for the pipeline joint coating is characterized in that: which comprises a component A and a component B,
the component A comprises the following components in percentage by mass: 35-45% of high-hydroxyl-value modified polyester polyol, 5-12% of low-hydroxyl-value modified polyester polyol, 5-12% of epoxy resin, 1-5% of cage-type polysilsesquioxane, 15-20% of active silica powder, 8-15% of titanium dioxide, 5-10% of aluminum dihydrogen tripolyphosphate, 5-10% of muscovite powder, 0.2-0.5% of dispersing agent, 0.2-0.5% of flatting agent, 0.3-0.7% of defoaming agent, 0.3-0.8% of water absorbent, 0.5-1.2% of catalyst and 0.1-0.7% of pigment filler;
wherein the hydroxyl value of the high hydroxyl value modified polyester polyol is not less than 250mgKOH/g, and the hydroxyl value of the low hydroxyl value modified polyester polyol is not more than 200 mgKOH/g;
the component B comprises the following components in percentage by mass: 55-75% of HDI tripolymer and 25-45% of modified liquefied MDI;
the mass ratio of the component A to the component B is 100: 30-50.
2. The weather-resistant two-component solvent-free polyurethane coating for the pipe joint coating according to claim 1, characterized in that: the component A comprises the following components in percentage by mass: 38-42% of high hydroxyl value modified polyester polyol, 6-10% of low hydroxyl value modified polyester polyol, 6-10% of epoxy resin, 2-4% of cage polysilsesquioxane, 15-18% of active silica powder, 8-10% of titanium dioxide, 5-8% of aluminum dihydrogen tripolyphosphate, 5-8% of muscovite powder, 0.2-0.4% of dispersing agent, 0.2-0.4% of flatting agent, 0.3-0.5% of defoaming agent, 0.3-0.6% of water absorbent, 0.6-1.0% of catalyst and 0.3-0.6% of pigment filler;
the component B comprises the following components in percentage by mass: 60-70% of HDI tripolymer and 30-40% of modified liquefied MDI.
3. The weather-resistant two-component solvent-free polyurethane coating for the pipe joint coating according to claim 2, characterized in that: the mass ratio of the component A to the component B is 100: 35-45.
4. The weather-resistant two-component solvent-free polyurethane coating for the pipe joint coating according to claim 2, characterized in that: the hydroxyl value of the high-hydroxyl-value modified polyester polyol is 250-350 mgKOH/g, and the viscosity is 500-1500 mPa.s @25 ℃;
the hydroxyl value of the low-hydroxyl-value modified polyester polyol is 100-200 mgKOH/g, and the viscosity is 3000-5000 mPa.s @25 ℃.
5. The weather-resistant two-component solvent-free polyurethane coating for the pipeline joint coating according to claim 4, wherein: the epoxy resin is bisphenol A type epoxy resin, and the epoxy equivalent is 200-250 g/eq.
6. The weather-resistant two-component solvent-free polyurethane coating for the pipe joint coating according to claim 5, wherein: the HDI tripolymer has NCO content of 19-22% and viscosity of 400-2000 mPa.s @23 ℃;
the modified liquefied MDI has NCO content of 28-32% and viscosity of 20-220 mPa.s @23 ℃.
7. The weather-resistant two-component solvent-free polyurethane coating for the pipeline joint coating according to claim 6, characterized in that: the cage polysilsesquioxane is aminopropyl heptyl-cage polysilsesquioxane;
the active silicon micro powder is modified by a silane coupling agent or a titanate coupling agent;
the dispersing agent is one or a mixture of more than two of fatty acids, fatty amides and esters;
the leveling agent is one or a mixture of more than two of cellulose acetate butyrate, polydimethylsiloxane, polyether polyester modified organic siloxane and alkyl modified organic siloxane;
the defoaming agent is one or a mixture of more than two of organic silicon and polyether modified organic silicon;
the water absorbent is one or a mixture of more than two of molecular sieve, oxazolidine, triethyl orthoformate and p-methyl benzenesulfonyl isocyanate;
the catalyst is one or a mixture of more than two of dibutyltin dilaurate, stannous octoate, lead isooctanoate and zinc isooctanoate.
8. The weather-resistant two-component solvent-free polyurethane coating for the pipe joint coating according to claim 7, wherein: the particle size of the active silicon micro powder is 800-1200 meshes;
the titanium dioxide is rutile type titanium dioxide of 800 meshes to 1000 meshes;
the particle size of the aluminum dihydrogen tripolyphosphate is 800 meshes to 1000 meshes;
the particle size of the muscovite powder is 800 meshes to 1000 meshes.
9. The method for preparing the weather-resistant two-component solvent-free polyurethane coating for the pipe joint coating according to any one of claims 1 to 8, comprising the following steps:
adding high-hydroxyl-value modified polyester polyol, low-hydroxyl-value modified polyester polyol and epoxy resin into a stirring tank according to a weight ratio, heating to 40-60 ℃, uniformly stirring, then adding cage-type polysilsesquioxane, a leveling agent, a dispersing agent, a defoaming agent, a water absorbent and a catalyst, stirring for 10-15 minutes, finally adding active silica micropowder, titanium dioxide, aluminium dihydrogen tripolyphosphate, muscovite powder and pigment filler, stirring for 40-50 minutes, and then grinding to obtain a component A;
and adding the HDI tripolymer and the modified liquefied MDI into a stirring tank according to the weight ratio, stirring, and uniformly mixing to obtain a component B.
10. The preparation method of the weather-resistant two-component solvent-free polyurethane coating for the pipeline joint coating according to claim 9, characterized in that: the fineness of grinding is required to be below 100um, the materials are discharged and packaged according to a proportion after being filtered by a 80-mesh filter screen, and the materials with the particle size of more than 100um are pumped back to a sand mill for grinding until the fineness meets the requirement.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116396635A (en) * | 2023-03-21 | 2023-07-07 | 江苏明昊新材料科技股份有限公司 | Solder resist ink for photovoltaic cell and preparation method thereof |
| CN116813891A (en) * | 2023-07-26 | 2023-09-29 | 惠州市华泓新材料股份有限公司 | Fatty acid modified polyester, preparation method and offset printing compound |
| GB2624517A (en) * | 2022-09-22 | 2024-05-22 | Vuba Building Products Ltd | Resin bonded/bound surfacing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103865033A (en) * | 2014-03-12 | 2014-06-18 | 中科院广州化学有限公司 | Multi-carboxyl cage silsesquioxane modified epoxy resin and application thereof in coating |
| CN104140754A (en) * | 2013-05-10 | 2014-11-12 | 北京碧海舟腐蚀防护工业股份有限公司 | Solvent-free polyurethane coating and preparation method thereof |
| CN104513605A (en) * | 2014-12-23 | 2015-04-15 | 上海海隆石油化工研究所 | Bicomponent solvent-free polyurethane paint for ultraviolet protection outdoors |
| CN105670475A (en) * | 2016-03-04 | 2016-06-15 | 长园长通新材料股份有限公司 | Solvent-free polyaspartate polyurea paint, and preparation method and application thereof |
| CN106336793A (en) * | 2016-08-24 | 2017-01-18 | 中国石油天然气集团公司 | Solvent-free polyurethane paint and manufacture method thereof |
| US20200255674A1 (en) * | 2019-02-11 | 2020-08-13 | King Fahd University Of Petroleum And Minerals | Waterborne polyurethane containing polyhedral oligomeric silsesquioxane |
| CN112521849A (en) * | 2020-12-04 | 2021-03-19 | 榕珍新材料科技发展(上海)有限公司 | Weather-resistant solvent-free two-component polyurethane coating and preparation method and use method thereof |
-
2022
- 2022-08-03 CN CN202210926169.4A patent/CN115093785B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140754A (en) * | 2013-05-10 | 2014-11-12 | 北京碧海舟腐蚀防护工业股份有限公司 | Solvent-free polyurethane coating and preparation method thereof |
| CN103865033A (en) * | 2014-03-12 | 2014-06-18 | 中科院广州化学有限公司 | Multi-carboxyl cage silsesquioxane modified epoxy resin and application thereof in coating |
| CN104513605A (en) * | 2014-12-23 | 2015-04-15 | 上海海隆石油化工研究所 | Bicomponent solvent-free polyurethane paint for ultraviolet protection outdoors |
| CN105670475A (en) * | 2016-03-04 | 2016-06-15 | 长园长通新材料股份有限公司 | Solvent-free polyaspartate polyurea paint, and preparation method and application thereof |
| CN106336793A (en) * | 2016-08-24 | 2017-01-18 | 中国石油天然气集团公司 | Solvent-free polyurethane paint and manufacture method thereof |
| US20200255674A1 (en) * | 2019-02-11 | 2020-08-13 | King Fahd University Of Petroleum And Minerals | Waterborne polyurethane containing polyhedral oligomeric silsesquioxane |
| CN112521849A (en) * | 2020-12-04 | 2021-03-19 | 榕珍新材料科技发展(上海)有限公司 | Weather-resistant solvent-free two-component polyurethane coating and preparation method and use method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2624517A (en) * | 2022-09-22 | 2024-05-22 | Vuba Building Products Ltd | Resin bonded/bound surfacing |
| CN116396635A (en) * | 2023-03-21 | 2023-07-07 | 江苏明昊新材料科技股份有限公司 | Solder resist ink for photovoltaic cell and preparation method thereof |
| CN116396635B (en) * | 2023-03-21 | 2023-11-07 | 江苏明昊新材料科技股份有限公司 | Solder resist ink for photovoltaic cell and preparation method thereof |
| CN116813891A (en) * | 2023-07-26 | 2023-09-29 | 惠州市华泓新材料股份有限公司 | Fatty acid modified polyester, preparation method and offset printing compound |
| CN116813891B (en) * | 2023-07-26 | 2024-04-16 | 惠州市华泓新材料股份有限公司 | Fatty acid modified polyester, preparation method and offset printing compound |
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