CN108676453B - High-strength water-soluble powder coating and preparation method thereof - Google Patents
High-strength water-soluble powder coating and preparation method thereof Download PDFInfo
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- CN108676453B CN108676453B CN201810604472.6A CN201810604472A CN108676453B CN 108676453 B CN108676453 B CN 108676453B CN 201810604472 A CN201810604472 A CN 201810604472A CN 108676453 B CN108676453 B CN 108676453B
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- Prior art keywords
- powder coating
- soluble powder
- water
- strength water
- parts
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- 238000000576 coating method Methods 0.000 title claims abstract description 54
- 239000011248 coating agent Substances 0.000 title claims abstract description 49
- 239000004552 water soluble powder Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 30
- 239000004593 Epoxy Substances 0.000 claims abstract description 28
- 239000002904 solvent Substances 0.000 claims abstract description 26
- 229920000642 polymer Polymers 0.000 claims abstract description 18
- 125000001453 quaternary ammonium group Chemical group 0.000 claims abstract description 16
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 12
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 12
- 239000003960 organic solvent Substances 0.000 claims abstract description 11
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 10
- 238000005498 polishing Methods 0.000 claims abstract description 10
- 239000000440 bentonite Substances 0.000 claims abstract description 9
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 9
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 27
- 239000000047 product Substances 0.000 claims description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 23
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 21
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 21
- 238000002390 rotary evaporation Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 16
- 238000006116 polymerization reaction Methods 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 238000001291 vacuum drying Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 12
- 239000012043 crude product Substances 0.000 claims description 11
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 10
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims description 9
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 8
- 239000003112 inhibitor Substances 0.000 claims description 8
- 239000003999 initiator Substances 0.000 claims description 8
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 7
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 239000000706 filtrate Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- HEPZUSCSZCGDFO-IYSWYEEDSA-N methyl (1r,2s)-1-amino-2-ethenylcyclopropane-1-carboxylate Chemical compound COC(=O)[C@@]1(N)C[C@H]1C=C HEPZUSCSZCGDFO-IYSWYEEDSA-N 0.000 claims description 7
- 239000012044 organic layer Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- -1 methyl (1R,2S Chemical compound 0.000 claims description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
- 235000011152 sodium sulphate Nutrition 0.000 claims description 5
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 4
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 claims description 4
- ZQMHJBXHRFJKOT-UHFFFAOYSA-N methyl 2-[(1-methoxy-2-methyl-1-oxopropan-2-yl)diazenyl]-2-methylpropanoate Chemical compound COC(=O)C(C)(C)N=NC(C)(C)C(=O)OC ZQMHJBXHRFJKOT-UHFFFAOYSA-N 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 4
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 4
- UICXTANXZJJIBC-UHFFFAOYSA-N 1-(1-hydroperoxycyclohexyl)peroxycyclohexan-1-ol Chemical compound C1CCCCC1(O)OOC1(OO)CCCCC1 UICXTANXZJJIBC-UHFFFAOYSA-N 0.000 claims description 3
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 3
- 241001128004 Demodex Species 0.000 claims description 3
- 229920000142 Sodium polycarboxylate Polymers 0.000 claims description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 3
- 235000019445 benzyl alcohol Nutrition 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical group [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 3
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 claims description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000002585 base Substances 0.000 claims description 2
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 2
- IFPMZBBHBZQTOV-UHFFFAOYSA-N 1,3,5-trinitro-2-(2,4,6-trinitrophenyl)-4-[2,4,6-trinitro-3-(2,4,6-trinitrophenyl)phenyl]benzene Chemical compound [O-][N+](=O)C1=CC([N+](=O)[O-])=CC([N+]([O-])=O)=C1C1=C([N+]([O-])=O)C=C([N+]([O-])=O)C(C=2C(=C(C=3C(=CC(=CC=3[N+]([O-])=O)[N+]([O-])=O)[N+]([O-])=O)C(=CC=2[N+]([O-])=O)[N+]([O-])=O)[N+]([O-])=O)=C1[N+]([O-])=O IFPMZBBHBZQTOV-UHFFFAOYSA-N 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008719 thickening Effects 0.000 abstract description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 239000012855 volatile organic compound Substances 0.000 description 6
- 125000003700 epoxy group Chemical group 0.000 description 5
- 238000005034 decoration Methods 0.000 description 4
- FWDBZJBJTDRIIY-UHFFFAOYSA-N CC(C)(C)[K] Chemical compound CC(C)(C)[K] FWDBZJBJTDRIIY-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000003277 amino group Chemical group 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 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 description 1
- 229910000165 zinc phosphate Inorganic materials 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
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2618—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen
- C08G65/2621—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups
- C08G65/2624—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups containing aliphatic amine groups
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/334—Polymers modified by chemical after-treatment with organic compounds containing sulfur
- C08G65/3344—Polymers modified by chemical after-treatment with organic compounds containing sulfur containing oxygen in addition to sulfur
- C08G65/3346—Polymers modified by chemical after-treatment with organic compounds containing sulfur containing oxygen in addition to sulfur having sulfur bound to carbon and oxygen
-
- 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
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a high-strength water-soluble powder coating which is composed of the following components in parts by weight: 30-40 parts of epoxy quaternary ammonium sulfonate film-forming polymer, 10-15 parts of epoxy silsesquioxane, 10-15 parts of bentonite, 1-3 parts of rare earth polishing powder, 2-6 parts of defoaming agent, 1-3 parts of dispersing agent and 2-5 parts of film-forming assistant. The invention also discloses a preparation method of the high-strength water-soluble powder coating. Compared with the common solvent-based coating in the prior art, the high-strength water-soluble powder coating disclosed by the invention does not contain an organic solvent, is better in safety and more environment-friendly, and has more excellent cohesiveness, film-forming property, lubricity, gel-forming property, chelating property, dispersibility, antifriction property, strength and thickening property and more remarkable decorative effect.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a high-strength water-soluble powder coating and a preparation method thereof.
Background
In recent years, with the development of economy and the improvement of living standard of people, the building decoration is more and more luxurious, and the used decoration materials are changed day by day, and the decoration materials bring visual aesthetic feeling and comfortable feeling to people, and also bring serious harm to the environment where people depend on living and the physical and mental health of the people. In recent years, environmental protection has been receiving more and more attention from the world due to deterioration of ecological environment and enhancement of awareness of environmental protection. Relevant regulations are set by various countries to strictly limit the emission of Volatile Organic Compounds (VOC) from decorative materials. Coatings are an important type of decorative material, and how to limit the emission of Volatile Organic Compounds (VOCs) is a focus of attention in the industry to purify the air environment.
The coating in the prior art is a solvent-based coating which contains a large amount of VOC components, so that the environment is polluted, the resources are wasted, and the health of people is harmed. The powder coating is a novel, solvent-free, 100% solids powder coating. The method has the characteristics of no solvent, no pollution, energy and resource saving, labor intensity reduction, high mechanical strength of film coating and the like, and becomes the main development direction of the coating. VOC is mainly from dispersion medium and film forming material of the coating, and the development of water-soluble resin production technology makes it possible for water-soluble powder coating to gradually replace solvent-based coating. The water-soluble powder coating has become one of important materials in building decoration because of excellent caking property, film forming property, lubricating property, gel forming property, chelating property, dispersibility, antifriction property and thickening property.
The Chinese invention patent CN104559565A discloses a nano-silica paint, which comprises 45 parts of water-based acrylic resin, 5 parts of pentaerythritol, 4 parts of bentonite, 5 parts of butyl acetate, 2 parts of mica powder, 1 part of aluminum tripolyphosphate, 3 parts of nano-silica, 4 parts of zinc phosphate, 8 parts of quartz powder, 1 part of titanium dioxide, 10 parts of organic fluorine epoxy resin, 40 parts of epoxy resin, 20 parts of organic silicon resin, 4 parts of meta-difluoro resin and 1 part of dimethylbenzene. The water-based paint prepared by the invention has better decorative effect, but has relatively poorer thermal hardness, strength and other physical properties.
Therefore, there is a need for more efficient methods for producing high strength water soluble powder coatings.
Disclosure of Invention
The invention mainly aims to provide a high-strength water-soluble powder coating which does not contain organic solvent, has better safety, is more environment-friendly, and has more excellent cohesiveness, film-forming property, lubricating property, gel forming property, chelating property, dispersibility, wear reduction property, strength and thickening property and more obvious decorative effect compared with the common solvent-based coating in the prior art.
In order to achieve the above purpose, the invention provides a high-strength water-soluble powder coating, which comprises the following components in parts by weight:
preferably, the film-forming assistant is one or more of propylene glycol methyl ether, propylene glycol butyl ether, alcohol ester twelve, diethylene glycol butyl ether or benzyl alcohol; the dispersing agent is sodium hexametaphosphate and/or sodium polycarboxylate; the antifoaming agent is preferably one or more of tributyl phosphate, antifoaming agent Demodex 3100 and antifoaming agent BYK 088; the rare earth polishing powder is rare earth cerium oxide powder.
Preferably, the preparation method of the epoxy quaternary ammonium sulfonate film-forming polymer comprises the following steps:
1) dissolving triethylamine in an organic solvent, adding epoxy chloropropane and an alkali catalyst into the organic solvent, stirring the mixture to react for 6 to 8 hours at the temperature of between 70 and 80 ℃, adding water into the mixture for layering, taking an organic layer, performing rotary evaporation to remove the solvent, washing a crude product for 4 to 6 times by using diethyl ether, and then placing the crude product in a vacuum drying oven at the temperature of between 60 and 80 ℃ for drying for 8 to 10 hours;
2) dissolving the product prepared in the step 1) in water, adding vinyl sulfonic acid and an inorganic polymerization inhibitor, stirring and reacting for 15-18 hours at room temperature, then performing rotary evaporation to remove water, dissolving the product with dichloromethane, filtering to obtain filtrate, and performing rotary evaporation to remove the solvent;
3) dissolving the product prepared in the step 2), methacrylamide, methyl (1R,2S) -1-amino-2-vinyl cyclopropanecarboxylate in a high boiling point solvent, adding an initiator, carrying out polymerization reaction for 2-4 hours at 65-75 ℃, then precipitating in ethanol, washing for 4-6 times by using ethyl acetate, and then placing in a vacuum drying oven for drying for 8-10 hours at 70-90 ℃.
Further, the mass ratio of the triethylamine, the organic solvent, the epichlorohydrin and the base catalyst in the step 1) is 1.1: (5-10): 1: (0.3-0.5).
The organic solvent is selected from one or more of ethanol, acetonitrile, isopropanol, dichloromethane and acetone.
The alkali catalyst is selected from one or more of potassium hydroxide, sodium carbonate and tert-butyl potassium alcoholate.
In the step 2), the mass ratio of the product prepared in the step 1), water, vinyl sulfonic acid and inorganic polymerization inhibitor is 1.8: (10-20): 1: (0.1-0.3).
The inorganic polymerization inhibitor is selected from one or more of sodium sulfate, sodium sulfide and ammonium thiocyanate.
In the step 3), the mass ratio of the product prepared in the step 2), methacrylamide, methyl (1R,2S) -1-amino-2-vinylcyclopropane carboxylate, high-boiling point solvent and initiator is 1: (2-4):1: (10-15): (0.01-0.03).
The high boiling point solvent is selected from one or more of dimethyl sulfoxide, N-dimethylformamide and N-methylpyrrolidone; the initiator is selected from one or more of benzoyl peroxide, cyclohexanone peroxide, azobisisobutyronitrile and dimethyl azobisisobutyrate.
A preparation method of the high-strength water-soluble powder coating comprises the following steps: firstly, mixing, grinding and dispersing the epoxy quaternary ammonium sulfonate film-forming polymer, the epoxy silsesquioxane, the bentonite and the rare earth polishing powder in proportion for 30-40 minutes, then putting the mixture and other components into a high-speed mixer to be uniformly stirred and mixed, then feeding the powder into a double-screw extruder, extruding the powder at 125-130 ℃, cooling, crushing, performing cyclone separation, and curing for 8-12 days.
Due to the application of the technical scheme, the high-strength water-soluble powder coating prepared by the invention has the following beneficial effects:
(1) the high-strength water-soluble powder coating disclosed by the invention is low in price of each component, simple and feasible in preparation method, low in requirement on equipment and suitable for large-scale production.
(2) Compared with common solvent-based coatings in the prior art, the high-strength water-soluble powder coating disclosed by the invention does not contain an organic solvent, does not release toxic and harmful gases such as formaldehyde and the like, is better in safety and more environment-friendly, has higher bonding performance with a wall body due to more active groups such as amino groups, epoxy groups and the like contained on a molecular chain, and is more excellent in film forming property, lubricating property, gel forming property, chelating property, dispersibility, wear reduction property, strength and thickening property and more remarkable in decorative effect.
(3) According to the high-strength water-soluble powder coating disclosed by the invention, the epoxy quaternary ammonium sulfonate film-forming polymer is added, so that the water solubility and the film-forming property are better, after the coating and drying are carried out, an epoxy group on the epoxy group can react with an amino group on a molecular chain of the epoxy group to form a three-dimensional network structure, and the coating can be endowed with more excellent water resistance, antifriction property and strength. Methacrylamide and methyl (1R,2S) -1-amino-2-vinyl cyclopropanecarboxylate are used for fixing formaldehyde under the synergistic action, so that the formaldehyde is more environment-friendly.
(4) The high-strength water-soluble powder coating disclosed by the invention is added with the epoxy silsesquioxane, the epoxy group on the epoxy silsesquioxane is easy to generate a crosslinking reaction with the amino group on the film-forming polymer to form a crosslinking structure, so that the comprehensive performance of the coating is favorably improved, the epoxy silsesquioxane has better compatibility with the film-forming polymer and more excellent dispersibility, and the cage structure and the chemical stability of the epoxy silsesquioxane endow the material with stronger fireproof flame retardant property, heat preservation property and weather resistance.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
The epoxysilsesquioxanes used in the following examples of the present invention (for synthesis see: Nippon, synthesis of epoxysilsesquioxanes (POSS), university of Anhui technology, 2015) were synthesized by itself.
Example 1
A high-strength water-soluble powder coating comprises the following components in parts by weight:
preferably, the preparation method of the epoxy quaternary ammonium sulfonate film-forming polymer comprises the following steps:
1) dissolving 11g of triethylamine in 50g of ethanol, adding 10g of epoxy chloropropane and 3g of potassium hydroxide, stirring and reacting for 6 hours at 70 ℃, adding water for layering, taking an organic layer, performing rotary evaporation to remove the solvent, washing a crude product for 4 times by using diethyl ether, and then placing the crude product in a vacuum drying oven at 60 ℃ for drying for 8 hours;
2) dissolving 18g of the product prepared in the step 1) in 100g of water, adding 10g of vinyl sulfonic acid and 1g of sodium sulfate, stirring and reacting at room temperature for 15 hours, performing rotary evaporation to remove water, dissolving the product with dichloromethane, filtering to obtain filtrate, and performing rotary evaporation to remove the solvent;
3) 10g of the product prepared in the step 2), 20g of methacrylamide, 10g of methyl (1R,2S) -1-amino-2-vinylcyclopropanecarboxylate and 100g of dimethyl sulfoxide are dissolved, 0.1g of benzoyl peroxide is added into the solution, polymerization reaction is carried out for 2 hours at 65 ℃, then the product is precipitated in ethanol, washed for 4 times by ethyl acetate and then placed in a vacuum drying oven for drying for 8 hours at 70 ℃.
A preparation method of the high-strength water-soluble powder coating comprises the following steps: firstly, mixing, grinding and dispersing the epoxy quaternary ammonium sulfonate film-forming polymer, the epoxy silsesquioxane, the bentonite and the rare earth polishing powder in proportion for 30 minutes, then putting the mixture and other components into a high-speed mixer to be uniformly stirred and mixed, then feeding the powder into a double-screw extruder, extruding the powder at 125 ℃, cooling, crushing, performing cyclone separation, and curing for 8 days.
Example 2
A high-strength water-soluble powder coating comprises the following components in parts by weight:
preferably, the preparation method of the epoxy quaternary ammonium sulfonate film-forming polymer comprises the following steps:
1) dissolving 11g of triethylamine in 60g of acetonitrile, adding 10g of epoxy chloropropane and 3.5g of sodium hydroxide, stirring and reacting for 6.5 hours at 73 ℃, adding water for layering, taking an organic layer, carrying out rotary evaporation to remove the solvent, washing the crude product for 5 times by using diethyl ether, and then placing in a vacuum drying oven at 64 ℃ for drying for 8.5 hours;
2) dissolving 18g of the product prepared in the step 1) in 130g of water, adding 10g of vinyl sulfonic acid and 1.5g of sodium sulfide, stirring and reacting at room temperature for 16 hours, removing water by rotary evaporation, dissolving the product by using dichloromethane, filtering to obtain filtrate, and removing the solvent by rotary evaporation;
3) 10g of the product prepared in the step 2), 25g of methacrylamide, and 10g of methyl (1R,2S) -1-amino-2-vinylcyclopropanecarboxylate are dissolved in 120g of N, N-dimethylformamide, 0.15g of cyclohexanone peroxide is added thereto, polymerization is carried out at 68 ℃ for 2.5 hours, and then the product is precipitated in ethanol, washed with ethyl acetate for 5 times, and then placed in a vacuum drying oven for drying at 75 ℃ for 8.5 hours.
A preparation method of the high-strength water-soluble powder coating comprises the following steps: firstly, mixing, grinding and dispersing the epoxy quaternary ammonium sulfonate film-forming polymer, the epoxy silsesquioxane, the bentonite and the rare earth polishing powder in proportion for 33 minutes, then putting the mixture and other components into a high-speed mixer together to be uniformly stirred and mixed, then feeding the powder into a double-screw extruder, extruding the powder at 127 ℃, cooling, crushing, performing cyclone separation, and curing for 9 days.
Example 3
A high-strength water-soluble powder coating comprises the following components in parts by weight:
preferably, the preparation method of the epoxy quaternary ammonium sulfonate film-forming polymer comprises the following steps:
1) dissolving 11g of triethylamine in 70g of isopropanol, adding 10g of epoxy chloropropane and 4g of sodium carbonate, stirring and reacting for 7 hours at 76 ℃, adding water for layering, taking an organic layer, performing rotary evaporation to remove the solvent, washing a crude product for 5 times by using diethyl ether, and then placing the crude product in a vacuum drying oven at 73 ℃ for drying for 9 hours;
2) dissolving 18g of the product prepared in the step 1) in 160g of water, adding 10g of vinyl sulfonic acid and 2.3g of ammonium thiocyanate, stirring and reacting at room temperature for 16.5 hours, removing water by rotary evaporation, dissolving the product by using dichloromethane, filtering to obtain filtrate, and removing the solvent by rotary evaporation;
3) dissolving 10g of the product prepared in the step 2), 30g of methacrylamide and 10g of methyl (1R,2S) -1-amino-2-vinylcyclopropanecarboxylate in 135g of N-methylpyrrolidone, adding 0.22g of azobisisobutyronitrile into the mixture, carrying out polymerization reaction for 3 hours at 70 ℃, then precipitating the mixture in ethanol, washing the mixture for 5 times by using ethyl acetate, and placing the mixture in a vacuum drying oven for drying for 9 hours at 80 ℃.
A preparation method of the high-strength water-soluble powder coating comprises the following steps: firstly, mixing, grinding and dispersing epoxy quaternary ammonium sulfonate film-forming polymer, epoxy silsesquioxane, bentonite and rare earth polishing powder in proportion for 34 minutes, then putting the mixture and other components into a high-speed mixer to be uniformly stirred and mixed, then feeding the powder into a double-screw extruder, extruding the powder at the temperature of 128 ℃, cooling, crushing, performing cyclone separation, and curing for 10 days.
Example 4
A high-strength water-soluble powder coating comprises the following components in parts by weight:
preferably, the preparation method of the epoxy quaternary ammonium sulfonate film-forming polymer comprises the following steps:
1) dissolving 11g of triethylamine in 90g of dichloromethane, adding 10g of epoxy chloropropane and 4.5g of tert-butyl potassium alcoholate, stirring and reacting for 7.5 hours at 78 ℃, adding water for layering, taking an organic layer, carrying out rotary evaporation to remove the solvent, washing the crude product for 6 times by using diethyl ether, and then placing in a vacuum drying oven at 75 ℃ for drying for 9.5 hours;
2) dissolving 18g of the product prepared in the step 1) in 180g of water, adding 10g of vinyl sulfonic acid and 2.5g of sodium sulfate, stirring and reacting at room temperature for 17 hours, removing water by rotary evaporation, dissolving the product by using dichloromethane, filtering to obtain filtrate, and removing the solvent by rotary evaporation;
3) 10g of the product obtained in step 2), 35g of methacrylamide, 10g of methyl (1R,2S) -1-amino-2-vinylcyclopropanecarboxylate and 0.25g of dimethyl azobisisobutyrate were dissolved in 140g of N-methylpyrrolidone, and polymerization was carried out at 73 ℃ for 3.5 hours, followed by precipitation in ethanol and washing with ethyl acetate for 6 times, and then the mixture was dried in a vacuum drying oven at 87 ℃ for 9.5 hours.
A preparation method of the high-strength water-soluble powder coating comprises the following steps: firstly, mixing, grinding and dispersing the epoxy quaternary ammonium sulfonate film-forming polymer, the epoxy silsesquioxane, the bentonite and the rare earth polishing powder in proportion for 38 minutes, then putting the mixture and other components into a high-speed mixer together to be uniformly stirred and mixed, then feeding the powder into a double-screw extruder, extruding the powder at the temperature of 129 ℃, cooling, crushing, performing cyclone separation, and curing for 11 days.
Example 5
A high-strength water-soluble powder coating comprises the following components in parts by weight:
wherein the film-forming additive is prepared by mixing alcohol ester twelve, diethylene glycol butyl ether and benzyl alcohol according to the mass ratio of 1:2: 3; the dispersing agent is prepared by mixing sodium hexametaphosphate and sodium polycarboxylate according to the mass ratio of 3: 5; the defoaming agent is formed by mixing tributyl phosphate, a defoaming agent Demodex 3100 and a defoaming agent BYK088 according to the mass ratio of 2:3: 7.
Preferably, the preparation method of the epoxy quaternary ammonium sulfonate film-forming polymer comprises the following steps:
1) dissolving 11g of triethylamine in 100g of acetone, adding 10g of epoxy chloropropane and 5g of an alkali catalyst, stirring and reacting for 8 hours at 80 ℃, adding water for layering, taking an organic layer, performing rotary evaporation to remove the solvent, washing a crude product for 6 times by using diethyl ether, and then placing in a vacuum drying oven at 80 ℃ for drying for 10 hours; the alkali catalyst is prepared by mixing potassium hydroxide, sodium carbonate and tert-butyl potassium alcoholate according to the mass ratio of 2:3:5: 7.
2) Dissolving 18g of the product prepared in the step 1) in 200g of water, adding 10g of vinyl sulfonic acid and 3g of inorganic polymerization inhibitor, stirring and reacting at room temperature for 15-18 hours, then performing rotary evaporation to remove water, dissolving the product with dichloromethane, filtering to obtain filtrate, and performing rotary evaporation to remove the solvent; the inorganic polymerization inhibitor is prepared by mixing sodium sulfate, sodium sulfide and ammonium thiocyanate according to the mass ratio of 2:3: 3;
3) dissolving 10g of the product prepared in the step 2), 40g of methacrylamide and 10g of methyl (1R,2S) -1-amino-2-vinylcyclopropanecarboxylate in 150g of dimethyl sulfoxide, adding 0.3g of an initiator, carrying out a polymerization reaction for 4 hours at 75 ℃, then precipitating in ethanol, washing for 6 times by using ethyl acetate, and then placing in a vacuum drying oven for drying for 10 hours at 90 ℃; the initiator is prepared by mixing azodiisobutyronitrile and dimethyl azodiisobutyrate according to the mass ratio of 3: 8;
a preparation method of the high-strength water-soluble powder coating comprises the following steps: firstly, mixing, grinding and dispersing the epoxy quaternary ammonium sulfonate film-forming polymer, the epoxy silsesquioxane, the bentonite and the rare earth polishing powder in proportion for 40 minutes, then putting the mixture and other components into a high-speed mixer to be uniformly stirred and mixed, then feeding the powder into a double-screw extruder, extruding the powder at 130 ℃, cooling, crushing, performing cyclone separation, and curing for 12 days.
Comparative example 1
Refer to the water-soluble powder coating prepared in example 1 of the Chinese patent CN 107325703A.
The water-soluble powder coatings prepared in examples 1 to 5 and comparative example were subjected to performance tests, the test methods and the test results are shown in Table 1.
TABLE 1 examples and comparative examples Performance testing
As can be seen from the above table, the high-strength water-soluble powder coating disclosed in the embodiments of the present invention has more excellent adhesion, water resistance, flexibility, impact strength and hardness than the water-soluble powder coatings in the prior art.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The high-strength water-soluble powder coating is characterized by comprising the following components in parts by weight:
the preparation method of the epoxy quaternary ammonium sulfonate film-forming polymer comprises the following steps:
1) dissolving triethylamine in an organic solvent, adding epoxy chloropropane and an alkali catalyst into the organic solvent, stirring the mixture to react for 6 to 8 hours at the temperature of between 70 and 80 ℃, adding water into the mixture for layering, taking an organic layer, performing rotary evaporation to remove the solvent, washing a crude product for 4 to 6 times by using diethyl ether, and then placing the crude product in a vacuum drying oven at the temperature of between 60 and 80 ℃ for drying for 8 to 10 hours;
2) dissolving the product prepared in the step 1) in water, adding vinyl sulfonic acid and an inorganic polymerization inhibitor, stirring and reacting for 15-18 hours at room temperature, then performing rotary evaporation to remove water, dissolving the product with dichloromethane, filtering to obtain filtrate, and performing rotary evaporation to remove the solvent;
3) dissolving the product prepared in the step 2), methacrylamide, methyl (1R,2S) -1-amino-2-vinyl cyclopropanecarboxylate in a high boiling point solvent, adding an initiator, carrying out polymerization reaction for 2-4 hours at 65-75 ℃, then precipitating in ethanol, washing for 4-6 times by using ethyl acetate, and then placing in a vacuum drying oven for drying for 8-10 hours at 70-90 ℃.
2. The high-strength water-soluble powder coating according to claim 1, wherein the film forming aid is one or more of propylene glycol methyl ether, propylene glycol butyl ether, alcohol ester dodeca, diethylene glycol butyl ether or benzyl alcohol; the dispersing agent is sodium hexametaphosphate and/or sodium polycarboxylate; the antifoaming agent is preferably one or more of tributyl phosphate, antifoaming agent Demodex 3100 and antifoaming agent BYK 088; the rare earth polishing powder is rare earth cerium oxide powder.
3. The high-strength water-soluble powder coating according to claim 1, wherein the mass ratio of the triethylamine, the organic solvent, the epichlorohydrin and the base catalyst in step 1) is 1.1: (5-10): 1: (0.3-0.5).
4. The high-strength water-soluble powder coating according to claim 1, wherein the organic solvent is one or more selected from ethanol, acetonitrile, isopropanol, dichloromethane and acetone.
5. The high-strength water-soluble powder coating according to claim 1, wherein the alkali catalyst is one or more selected from potassium hydroxide, sodium carbonate and potassium tert-butyl alkoxide; the inorganic polymerization inhibitor is selected from one or more of sodium sulfate, sodium sulfide and ammonium thiocyanate.
6. The high-strength water-soluble powder coating according to claim 1, wherein the mass ratio of the product prepared in step 2) through step 1), water, vinyl sulfonic acid and inorganic polymerization inhibitor is 1.8: (10-20): 1: (0.1-0.3).
7. The high-strength water-soluble powder coating according to claim 1, wherein the mass ratio of the product obtained in step 3) through step 2), methacrylamide, methyl (1R,2S) -1-amino-2-vinylcyclopropanecarboxylate, high boiling point solvent and initiator is 1: (2-4): 1: (10-15): (0.01-0.03).
8. The high-strength water-soluble powder coating according to claim 1, wherein the high-boiling point solvent is selected from one or more of dimethylsulfoxide, N-dimethylformamide and N-methylpyrrolidone; the initiator is selected from one or more of benzoyl peroxide, cyclohexanone peroxide, azobisisobutyronitrile and dimethyl azobisisobutyrate.
9. A method for preparing a high strength water soluble powder coating according to any one of claims 1 to 8, comprising the steps of: firstly, mixing, grinding and dispersing the epoxy quaternary ammonium sulfonate film-forming polymer, the epoxy silsesquioxane, the bentonite and the rare earth polishing powder in proportion for 30-40 minutes, then putting the mixture and other components into a high-speed mixer to be uniformly stirred and mixed, then feeding the powder into a double-screw extruder, extruding the powder at 125-130 ℃, cooling, crushing, performing cyclone separation, and curing for 8-12 days.
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