CN112266680B - High-corrosion-resistance color coating - Google Patents
High-corrosion-resistance color coating Download PDFInfo
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- CN112266680B CN112266680B CN202011029652.XA CN202011029652A CN112266680B CN 112266680 B CN112266680 B CN 112266680B CN 202011029652 A CN202011029652 A CN 202011029652A CN 112266680 B CN112266680 B CN 112266680B
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- 238000009500 colour coating Methods 0.000 title claims description 14
- 238000000576 coating method Methods 0.000 claims abstract description 47
- 239000011248 coating agent Substances 0.000 claims abstract description 46
- -1 polypropylene Polymers 0.000 claims abstract description 44
- 239000002245 particle Substances 0.000 claims abstract description 42
- 239000000049 pigment Substances 0.000 claims abstract description 38
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 19
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 19
- 239000010954 inorganic particle Substances 0.000 claims abstract description 10
- 239000002923 metal particle Substances 0.000 claims abstract description 10
- 230000007797 corrosion Effects 0.000 claims abstract description 8
- 238000005260 corrosion Methods 0.000 claims abstract description 8
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 claims description 32
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 23
- 239000011259 mixed solution Substances 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 13
- 239000000178 monomer Substances 0.000 claims description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 11
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000001723 curing Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 239000003973 paint Substances 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- 239000012295 chemical reaction liquid Substances 0.000 claims description 8
- 235000019441 ethanol Nutrition 0.000 claims description 8
- AZIQALWHRUQPHV-UHFFFAOYSA-N prop-2-eneperoxoic acid Chemical compound OOC(=O)C=C AZIQALWHRUQPHV-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Natural products CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 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 6
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 5
- 229920006217 cellulose acetate butyrate Polymers 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000002745 absorbent Effects 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 4
- 239000001023 inorganic pigment Substances 0.000 claims description 4
- 239000012860 organic pigment Substances 0.000 claims description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000003999 initiator Substances 0.000 claims description 3
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 125000005442 diisocyanate group Chemical group 0.000 claims description 2
- 239000007850 fluorescent dye Substances 0.000 claims description 2
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000011859 microparticle Substances 0.000 claims description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229960003351 prussian blue Drugs 0.000 claims description 2
- 239000013225 prussian blue Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims 1
- 239000011347 resin Substances 0.000 abstract description 8
- 229920005989 resin Polymers 0.000 abstract description 8
- 238000005562 fading Methods 0.000 abstract description 3
- 239000004677 Nylon Substances 0.000 abstract 1
- 239000004696 Poly ether ether ketone Substances 0.000 abstract 1
- 239000004695 Polyether sulfone Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 229920001778 nylon Polymers 0.000 abstract 1
- 229920005668 polycarbonate resin Polymers 0.000 abstract 1
- 239000004431 polycarbonate resin Substances 0.000 abstract 1
- 229920006393 polyether sulfone Polymers 0.000 abstract 1
- 229920002530 polyetherether ketone Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 230000001988 toxicity Effects 0.000 abstract 1
- 231100000419 toxicity Toxicity 0.000 abstract 1
- 239000002966 varnish Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 8
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 4
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 4
- 238000003848 UV Light-Curing Methods 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- YTLYLLTVENPWFT-UPHRSURJSA-N (Z)-3-aminoacrylic acid Chemical compound N\C=C/C(O)=O YTLYLLTVENPWFT-UPHRSURJSA-N 0.000 description 1
- CRCUZLIECDUBOO-UHFFFAOYSA-N CC(OC(CCCC(C=C)=O)=O)=O Chemical compound CC(OC(CCCC(C=C)=O)=O)=O CRCUZLIECDUBOO-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 239000008096 xylene 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
- 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
- C09D151/085—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 on to polysiloxanes
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
-
- 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
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
- C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
-
- 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
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/068—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- 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
-
- 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
- C09D5/10—Anti-corrosive paints containing metal dust
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- 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
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- 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)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a high-corrosion-resistance colored coating which comprises colored particles, wherein metal particles and pigments are wrapped in the colored particles, the colored particles are selected from one or more of polypropylene resin, polycarbonate resin, nylon resin, polyether ether ketone resin and polyether sulfone resin, the metal particles are nano inorganic particles, and the particle size of the nano inorganic particles is 1-100 nm. The pigment has certain toxicity due to component limitation, has the problems of easy falling off, easy fading and the like when being applied to a coating, and is coated with a layer of varnish on the surface to ensure that the pigment is not easy to fall off when in use. Compared with the prior art, the invention adopts colorless fluorine-silicon modified acrylic resin, and improves the corrosion resistance on the premise of not influencing the color of the coating.
Description
Technical Field
The invention relates to a resin and a synthetic method thereof, in particular to a high-corrosion-resistance color coating.
Background
The pigment is used as an important material and has wide application in art and life. It is popular with human because of its rich color variety. Through the development of many years, pigments are developed from the earliest inorganic pigments to organic pigments, fluorescent pigments and the like, and the pursuit of color is met. However, the pigment itself is limited by components and has poor acid-base stability, and the fluorine-silicon modified acrylic resin may have acid and base materials in the preparation process, which may cause the pigment to deteriorate prematurely and fade.
Disclosure of Invention
The invention provides a high-corrosion-resistance colored paint, which at least solves the problems of weak corrosion resistance and easy corrosion of resin in the prior art.
The invention provides a high-corrosion-resistance colored coating, which comprises 30-50 parts by weight of fluorine-silicon modified acrylic resin, 1-5 parts by weight of colored particles, 0.1-0.5 part by weight of ultraviolet absorbent, 1-5 parts by weight of acryloyl cellulose acetate butyrate and 5-20 parts by weight of solvent, wherein metal particles and pigment are wrapped in the colored particles, the metal particles are nano inorganic particles, the particle size of the nano inorganic particles is 1-100nm, and the fluorine-silicon modified acrylic resin is prepared from perfluoroalkyl alcohol, phosphorus oxychloride, polydimethylsiloxane and hydroxyl-containing acrylate according to a molar ratio of 0.5: 1: 2: 5, reacting.
Further, the preparation method of the fluorosilicone modified acrylic resin comprises the following steps:
step 1: taking perfluoroalkyl ethyl alcohol and phosphorus oxychloride according to a molar ratio of 0.5: 1, mixing, adding dibutyltin dilaurate accounting for 0.2 percent of the total weight of the reaction liquid, reacting for 10-24 hours under anhydrous condition, at the reaction temperature of 50-100 ℃, and drying for 2 hours in vacuum at the temperature of 100 ℃;
step 2: taking the liquid reacted in the step 1, and mixing the liquid with the polydimethylsiloxane according to the molar ratio of the content of the phosphorus oxychloride in the liquid to the polydimethylsiloxane being 1: 2 adding polydimethylsiloxane, and reacting for 10 hours under an anhydrous condition at the reaction temperature of 60-120 ℃;
and step 3: taking the liquid obtained after the reaction in the step 2, and mixing the liquid with the hydroxyl-containing acrylic ester according to the molar ratio of the content of phosphorus oxychloride in the liquid to the hydroxyl-containing acrylic ester of 1: 2, adding hydroxyl-containing acrylate, adding dibutyltin dilaurate accounting for 0.5-2% of the total weight of the reaction liquid, and reacting for 5 hours at 40-60 ℃ under anhydrous condition to obtain fluorosilicone modified acrylate;
and 4, step 4: taking the fluorine-silicon modified acrylic acid reacted in the step 3, and mixing the fluorine-silicon modified acrylic acid with the hydroxyl-containing acrylic ester according to the molar ratio of the perfluoroalkyl ethyl alcohol content to the hydroxyl-containing acrylic ester of 1: 3, adding hydroxyl-containing acrylic ester, heating to 40-80 ℃ under anhydrous condition, dropwise adding azo initiator accounting for 0.5-2% of the total weight of the reaction liquid, and reacting for 2-10 hours to obtain the fluorosilicone modified acrylic resin. Wherein the phosphorus oxychloride can be selected from phosphorus oxychloride or phosphorus oxychloride.
Further, the ultraviolet absorbent is a xylene ketone compound.
Further, the nano inorganic particles can be one or more of silver powder, zinc powder and metal oxide powder.
Further, the nano inorganic particles are in a lamellar shape.
Further, the pigment is selected from one or more of inorganic pigments and organic pigments, the inorganic pigments are selected from one or more of carbon black, iron oxide red and Prussian blue, and the organic pigments are selected from one or more of azo pigments, phthalocyanine pigments and quinacridone pigments.
Further, the pigment also includes a fluorescent dye.
Further, the preparation method of the high-corrosion-resistance color coating specifically comprises the following steps:
step 1: taking 50-100 parts by weight of colored microparticle monomer raw material into 10-30 parts by weight of solution, adding 1-5 parts by weight of metal particles, and oscillating to form uniform mixed solution;
step 2: coating and curing the mixed solution to form a coating;
and step 3: crushing and grinding the coating to obtain 300-400 mesh color particles;
and 4, step 4: soaking the color particles in 10-50 parts by weight of solution, adding 2-10 parts by weight of pigment and 100-200 parts by weight of color particle monomer raw materials, and oscillating to form uniform mixed solution;
and 5: coating and curing the mixed solution to form a coating;
step 6: the coating is crushed and ground to obtain 50-100 mesh colored particles.
Further, the solution in the step 1 is water.
Furthermore, the color particle monomer in the step 1 is one or more of a monomer with a hydroxyl group and a monomer with an amino group, and 10-20% by weight of the color particle monomer in the step 4 is a diisocyanate monomer.
Further, the solution in the step 4 is acetone.
Compared with the prior art, the invention adopts colorless fluorine-silicon modified acrylic resin, and improves the corrosion resistance on the premise of not influencing the color of the coating. Meanwhile, the metal particles and the pigment are wrapped in the colored particles, so that a stable storage environment is provided for the pigment, and a good protection effect can be achieved when finish paint is not used. Meanwhile, the functional group structure of the colored particles is utilized, and the resin and the rest components of the coating can be polymerized again during coating, so that the stability of the pigment in the coating is improved, and the risk of fading is reduced.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The preparation method of the fluorine-silicon modified acrylic resin in the embodiments 1 to 3 and the comparative example comprises the following steps:
step 1: taking perfluoroalkyl ethyl alcohol and phosphorus oxychloride according to a molar ratio of 0.5: 1, mixing, adding dibutyltin dilaurate accounting for 0.2 percent of the total weight of a reaction solution, reacting for 24 hours under an anhydrous condition, wherein the reaction temperature is 50 ℃, and carrying out vacuum drying for 2 hours at the temperature of 100 ℃;
step 2: taking the liquid reacted in the step 1, and mixing the liquid with the polydimethylsiloxane according to the molar ratio of the content of the phosphorus oxychloride in the liquid to the polydimethylsiloxane being 1: 2 adding polydimethylsiloxane, and reacting for 10 hours under an anhydrous condition at the reaction temperature of 120 ℃;
and step 3: taking the liquid obtained after the reaction in the step 2, and mixing the liquid with the hydroxyl-containing acrylic ester according to the molar ratio of the content of phosphorus oxychloride in the liquid to the hydroxyl-containing acrylic ester of 1: 5, adding hydroxyl-containing acrylate, adding dibutyltin dilaurate accounting for 0.5-2% of the total weight of the reaction liquid, and reacting for 5-24 hours at 40-60 ℃ under an anhydrous condition to obtain fluorine-silicon modified acrylate;
and 4, step 4: taking the fluorine-silicon modified acrylic acid reacted in the step 3, and mixing the fluorine-silicon modified acrylic acid with the hydroxyl-containing acrylic ester according to the molar ratio of the perfluoroalkyl ethyl alcohol content to the hydroxyl-containing acrylic ester of 1: 3, adding hydroxyl-containing acrylic ester, heating to 80 ℃ under an anhydrous condition, dropwise adding an azo initiator accounting for 2 percent of the total weight of the reaction liquid, and reacting for 50 hours to obtain the fluorosilicone modified acrylic resin. Wherein the phosphorus oxychloride is phosphorus oxychloride.
The pigments adopted in the embodiments 1-3 and the comparative example of the invention are titanium dioxide, and the fluorescent powder is prepared according to the proportion of 4: 0.5 weight ratio.
The ultraviolet absorbent is tolidine.
Example 1
The preparation method of the high-corrosion-resistance color coating provided by the embodiment of the invention comprises the following steps:
step 1: taking 50 parts by weight of hydroxyl acrylate in 30 parts by weight of water, adding 5 parts by weight of 1-100nm silver powder, and oscillating to form a uniform mixed solution;
step 2: coating and curing the mixed solution, and drying at 150 ℃ for 4 hours to form a coating;
and step 3: crushing, grinding and sieving the coating to obtain 300-400-mesh color particles;
and 4, step 4: soaking the color particles in 50 parts by weight of water, adding 10 parts by weight of pigment and 100 parts by weight of hydroxyl acrylate, and oscillating to form a uniform mixed solution;
and 5: coating and curing the mixed solution, and drying at 150 ℃ for 4 hours to form a coating;
step 6: the coating is crushed, ground and sieved to obtain 50-100 mesh colored particles.
The high-corrosion-resistance color coating of embodiment 1 of the present invention comprises 30 parts by weight of a fluorosilicone modified acrylic resin, 5 parts by weight of color particles, 0.1 part by weight of an ultraviolet absorber, 5 parts by weight of an acryl-acylated cellulose acetate butyrate, and 5 parts by weight of butyl acetate.
The high-corrosion-resistance color coating of the embodiment 1 of the invention is coated to a thickness of 1-2mm and UV light curing is carried out to obtain the coating of the embodiment 1 of the invention.
Example 2
The preparation method of the high-corrosion-resistance color coating provided by the embodiment of the invention comprises the following steps:
step 1: taking 25 parts by weight of hydroxyl acrylate and 25 parts by weight of amino acrylate in 30 parts by weight of water, adding 5 parts by weight of 1-100nm silver powder, and oscillating to form a uniform mixed solution;
step 2: coating and curing the mixed solution, and drying at 150 ℃ for 4 hours to form a coating;
and step 3: crushing, grinding and sieving the coating to obtain 300-400-mesh color particles;
and 4, step 4: soaking the color particles in 50 parts by weight of water, adding 10 parts by weight of pigment and 100 parts by weight of hydroxyl acrylate, and uniformly oscillating;
and 5: coating and curing the mixed solution, and drying at 150 ℃ for 4 hours to form a coating;
step 6: the coating is crushed, ground and sieved to obtain 50-100 mesh colored particles.
The high-corrosion-resistance color coating of embodiment 2 of the present invention comprises 50 parts by weight of a fluorosilicone modified acrylic resin, 5 parts by weight of color particles, 0.5 part by weight of an ultraviolet absorber, 5 parts by weight of an acryl-acylated cellulose acetate butyrate, and 20 parts by weight of butyl acetate.
The high-corrosion-resistance color coating of the embodiment 2 of the invention is coated to a thickness of 1-2mm and UV light curing is carried out to obtain the coating of the embodiment 2 of the invention.
Example 3
The preparation method of the high-corrosion-resistance color coating provided by the embodiment of the invention comprises the following steps:
step 1: taking 50 parts by weight of hydroxyl acrylate in 30 parts by weight of water, adding 5 parts by weight of 1-100nm silver powder, and oscillating to form a uniform mixed solution;
step 2: coating and curing the mixed solution, and drying at 150 ℃ for 4 hours to form a coating;
and step 3: crushing, grinding and sieving the coating to obtain 300-400-mesh color particles;
and 4, step 4: soaking the color particles in 50 parts by weight of acetone for 1 hour at 40 ℃, adding 10 parts by weight of pigment and oscillating, adding 20 parts by weight of isophorone diisocyanate, oscillating for 2 hours at 60 ℃ to form a uniform mixed solution, adding 80 parts by weight of hydroxy acrylate, oscillating and uniformly mixing;
and 5: coating and curing the mixed solution, and drying at 150 ℃ for 4 hours to form a coating;
step 6: the coating is crushed, ground and sieved to obtain 50-100 mesh colored particles.
The high-corrosion-resistance color coating of embodiment 3 of the present invention includes 30 parts by weight of a fluorosilicone modified acrylic resin, 5 parts by weight of color fine particles, 0.1 part by weight of an ultraviolet absorber, 1 part by weight of an acryl-acylated cellulose acetate butyrate, and 20 parts by weight of butyl acetate.
The high-corrosion-resistance color coating of the embodiment 3 of the invention is coated to a thickness of 1-2mm and UV light curing is carried out to obtain the coating of the embodiment 3 of the invention.
Comparative example
The acrylic paint of the comparative example of the present invention comprises 30 parts by weight of a fluorosilicone modified acrylic resin, 0.5 part by weight of silver powder, 0.1 part by weight of a pigment, 0.1 part by weight of an ultraviolet absorber, 1 part by weight of an acryl-butyryl acetate, and 20 parts by weight of butyl acetate.
The acrylic paint of the comparative example of the present invention was coated to a thickness of 1 to 2mm and cured to obtain a coating of the comparative example of the present invention.
The coatings of examples 1 to 3 of the present invention and the comparative example were subjected to performance tests, and the results are shown in the following table:
according to the embodiment of the invention, the colorless fluorosilicone modified acrylic resin is adopted, so that the corrosion resistance is improved on the premise of not influencing the color of the coating. The embodiment of the invention provides a stable storage environment for the pigment by wrapping the metal particles and the pigment in the colored particles, and compared with the comparative example, the embodiment of the invention can play a good protection role when the finish paint is not used, reduce the possibility of pigment falling off and reduce the requirement on the fluorine-silicon modified acrylic resin component. Meanwhile, the embodiment of the invention utilizes the functional group structure of the colored particles, and the resin and the rest components of the coating can be polymerized again when coating is carried out, so that the stability of the pigment in the coating is improved, and the risk of fading is reduced. In addition, in the embodiment 2 of the present invention, the isophorone diisocyanate is used, and the fast polymerization reaction can be performed with the hydroxyl group and the amino group on the surface of the fine particle, so that the pigment is fixed in the fine particle, and the possibility that the pigment falls off from the fine particle is reduced. In particular, in example 3 of the present invention, the particles in step 3 were soaked with acetone to expand the particles and expand the voids of the polymer component on the surface of the particles, and the pigment was further fed into the pores of the particles by shaking, thereby reducing the possibility of the pigment falling off from the particles.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the modifications and equivalents of the specific embodiments of the present invention can be made by those skilled in the art after reading the present specification, but these modifications and variations do not depart from the scope of the claims of the present application.
Claims (6)
1. The high-corrosion-resistance colored paint is characterized by comprising 30-50 parts by weight of fluorine-silicon modified acrylic resin, 1-5 parts by weight of colored particles, 0.1-0.5 part by weight of ultraviolet absorbent, 1-5 parts by weight of acryloyl cellulose acetate butyrate and 5-20 parts by weight of solvent, wherein metal particles and pigment are wrapped in the colored particles, the metal particles are nano inorganic particles, the particle size of the nano inorganic particles is 1-100nm, and the fluorine-silicon modified acrylic resin is prepared from perfluoroalkyl alcohol, phosphorus oxychloride, polydimethylsiloxane and hydroxyl-containing acrylate according to a molar ratio of 0.5: 1: 2: 5, reacting;
the preparation method of the colored particles comprises the following steps:
step 1: taking 50-100 parts by weight of colored microparticle monomer raw material into 10-30 parts by weight of solution, adding 1-5 parts by weight of metal particles, and oscillating to form uniform mixed solution;
step 2: coating and curing the mixed solution, and drying at 150 ℃ for 4 hours to form a coating;
and step 3: crushing and grinding the coating to obtain 300-400 mesh color particles;
and 4, step 4: soaking the color particles in 10-50 parts by weight of acetone for 1 hour at 40 ℃, adding 2-10 parts by weight of pigment and oscillating, adding 20 parts by weight of isophorone diisocyanate, oscillating for 2 hours at 60 ℃ to form a uniform mixed solution, adding 80 parts by weight of hydroxy acrylate, and oscillating to form a uniform mixed solution;
and 5: coating and curing the mixed solution, and drying at 150 ℃ for 4 hours to form a coating;
step 6: crushing and grinding the coating to obtain 50-100 mesh colored particles;
the colored particle monomer in the step 1 is one or more of a monomer with hydroxyl and a monomer with amino, and 10-20% of the colored particle monomer in the step 4 is a diisocyanate monomer;
the preparation method of the fluorine-silicon modified acrylic resin comprises the following steps:
step 1: taking perfluoroalkyl ethyl alcohol and phosphorus oxychloride according to a molar ratio of 0.5: 1, mixing, adding dibutyltin dilaurate accounting for 0.2 percent of the total weight of the reaction liquid, reacting for 10-24 hours under anhydrous condition, at the reaction temperature of 50-100 ℃, and drying for 2 hours in vacuum at the temperature of 100 ℃;
step 2: taking the liquid reacted in the step 1, and mixing the liquid with the polydimethylsiloxane according to the molar ratio of the content of the phosphorus oxychloride in the liquid to the polydimethylsiloxane being 1: 2 adding polydimethylsiloxane, and reacting for 10 hours under an anhydrous condition at the reaction temperature of 60-120 ℃;
and step 3: taking the liquid obtained after the reaction in the step 2, and mixing the liquid with the hydroxyl-containing acrylic ester according to the molar ratio of the content of phosphorus oxychloride in the liquid to the hydroxyl-containing acrylic ester of 1: 2, adding hydroxyl-containing acrylate, adding dibutyltin dilaurate accounting for 0.5-2% of the total weight of the reaction liquid, and reacting for 5-24 hours at 40-60 ℃ under an anhydrous condition to obtain fluorine-silicon modified acrylate;
and 4, step 4: taking the fluorine-silicon modified acrylic acid reacted in the step 3, and mixing the fluorine-silicon modified acrylic acid with the hydroxyl-containing acrylic ester according to the molar ratio of the perfluoroalkyl ethyl alcohol content to the hydroxyl-containing acrylic ester of 1: 3, adding hydroxyl-containing acrylic ester, heating to 40-80 ℃ under anhydrous condition, dropwise adding azo initiator accounting for 0.5-2% of the total weight of the reaction liquid, and reacting for 2-10 hours to obtain the fluorosilicone modified acrylic resin.
2. The high corrosion-resistant color paint as claimed in claim 1, wherein the nano inorganic particles are selected from one or more of silver powder, zinc powder, and metal oxide powder.
3. The high corrosion-resistant color paint as claimed in claim 1, wherein the nano inorganic particles are in a lamellar shape.
4. The highly anticorrosive color coating according to claim 1, wherein the pigment is selected from one or more of inorganic pigments selected from one or more of carbon black, iron oxide red and Prussian blue, and organic pigments selected from one or more of azo pigments, phthalocyanine pigments and quinacridone pigments.
5. The highly anticorrosive color paint according to claim 1, wherein the pigment further comprises a fluorescent dye.
6. The high corrosion-resistant color paint as claimed in claim 1, wherein the solution in step 1 is water.
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Effective date of registration: 20240117 Address after: 225000 Zhanggang No.9 bridge, Xiannv Town, Jiangdu District, Yangzhou City, Jiangsu Province Patentee after: JIANGSU JINLING SPECIAL PAINT Co.,Ltd. Address before: 528308 Guangdong Province, Foshan city Shunde District Lunjiao three Chau Industrial Zone Patentee before: GUANGDONG MAYDOS BUILDING MATERIALS Co.,Ltd. |