CN116355505A - Photocurable coating for steel structure and preparation method thereof - Google Patents
Photocurable coating for steel structure and preparation method thereof Download PDFInfo
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- CN116355505A CN116355505A CN202310220729.9A CN202310220729A CN116355505A CN 116355505 A CN116355505 A CN 116355505A CN 202310220729 A CN202310220729 A CN 202310220729A CN 116355505 A CN116355505 A CN 116355505A
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- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 57
- 238000000576 coating method Methods 0.000 claims description 52
- 239000011248 coating agent Substances 0.000 claims description 50
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 49
- 238000003756 stirring Methods 0.000 claims description 49
- 238000002360 preparation method Methods 0.000 claims description 38
- 238000000016 photochemical curing Methods 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000000377 silicon dioxide Substances 0.000 claims description 21
- 239000002270 dispersing agent Substances 0.000 claims description 19
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 18
- 239000011737 fluorine Substances 0.000 claims description 18
- 229910052731 fluorine Inorganic materials 0.000 claims description 18
- 229920006150 hyperbranched polyester Polymers 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 18
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 claims description 17
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 17
- 235000012239 silicon dioxide Nutrition 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- QPJVMBTYPHYUOC-UHFFFAOYSA-N methyl benzoate Chemical compound COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 claims description 4
- -1 polydimethylsiloxane Polymers 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims description 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 claims description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 2
- 229940095102 methyl benzoate Drugs 0.000 claims description 2
- 125000005375 organosiloxane group Chemical group 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- LWRBVKNFOYUCNP-UHFFFAOYSA-N 2-methyl-1-(4-methylsulfanylphenyl)-2-morpholin-4-ylpropan-1-one Chemical compound C1=CC(SC)=CC=C1C(=O)C(C)(C)N1CCOCC1 LWRBVKNFOYUCNP-UHFFFAOYSA-N 0.000 claims 1
- 238000001723 curing Methods 0.000 description 10
- 239000003973 paint Substances 0.000 description 7
- 239000003085 diluting agent Substances 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical group NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 244000028419 Styrax benzoin Species 0.000 description 1
- 235000000126 Styrax benzoin Nutrition 0.000 description 1
- 235000008411 Sumatra benzointree Nutrition 0.000 description 1
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical class C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
- ZCZFEIZSYJAXKS-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] prop-2-enoate Chemical class OCC(CO)(CO)COC(=O)C=C ZCZFEIZSYJAXKS-UHFFFAOYSA-N 0.000 description 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000001951 carbamoylamino group Chemical group C(N)(=O)N* 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- ISAOCJYIOMOJEB-UHFFFAOYSA-N desyl alcohol Natural products C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000002816 methylsulfanyl group Chemical group [H]C([H])([H])S[*] 0.000 description 1
- 125000004573 morpholin-4-yl group Chemical group N1(CCOCC1)* 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000123 paper 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
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical class C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a photo-curing coating for a steel structure, which comprises the following raw materials in parts by weight: 35-40 parts of monofunctional acrylate, 40-45 parts of beta-hydroxyethyl methacrylate, 50-60 parts of difunctional acrylate, 50-60 parts of tripropylene glycol diacrylate, 10-15 parts of fluorine-containing hyperbranched polyester acrylate, 2-5 parts of dispersing agent, 1.5-5 parts of flatting agent, 3.5-4.5 parts of photoinitiator and 10-15 parts of silicon dioxide. According to the invention, fluorine-containing hyperbranched polyester acrylate is added in the formula, and the radius of fluorine atoms is larger than that of hydrogen atoms, so that carbon atoms and carbon chains can be effectively protected, and the photocuring coating added with the fluorine-containing hyperbranched polyester acrylate is stable under neutral and acidic conditions, and can maintain the hydrophobic self-cleaning performance for a long time.
Description
Technical Field
The invention belongs to the technical field of photo-curing coatings, and particularly relates to a photo-curing coating for a steel structure.
Background
The photo-curing paint is also called photosensitive paint, which uses ultraviolet light as paint curing energy source and is also called ultraviolet light curing paint. The film can be quickly solidified on flammable substrates such as paper, plastic, leather, wood and the like without heating. The color paint is mainly composed of photosensitive resin, a photosensitive agent (photoinitiator) and a diluent, and meanwhile, some additives such as a heat stabilizer are added, and pigment and filler are added when the color paint is prepared. The photosensitive resin is generally a low molecular weight resin having an unsaturated bond such as unsaturated polyester, acrylic oligomer; the photosensitizer is a compound which can easily absorb ultraviolet light to generate active free radicals, such as benzophenone and benzoin alkyl ethers; the diluent has the main function of reducing the viscosity of the paint and also participates in curing and film forming, namely, reactive diluents such as styrene, acrylic ester and the like. The photo-curing coating has the advantages of short curing time (from a fraction of a second to a few minutes), low curing temperature and low volatile, and is a new coating variety with energy and resource conservation, no public hazard and high efficiency; the disadvantage is that the curing process of the free radical type photo-curing coating is suppressed by oxygen, and the surface is poorly cured. In recent years, an ionic photo-curable coating has been developed.
Publication (bulletin) number: CN105567063a publication (bulletin) day: 2016-05-11, and a preparation method thereof, comprises the following raw materials in percentage by weight: 25-30% of modified polyfunctional polyester acrylate, 10-15% of modified epoxy acrylate, 20-25% of modified pentaerythritol acrylate, 15-20% of TPGDA, 0.3-1.0% of wetting dispersant, 10-15% of transparent talcum powder, 2-4% of photoinitiator 1, 1-3% of photoinitiator 2, 2-4% of photoinitiator 3 and 0.3-0.5% of flatting agent. The preparation method comprises the following steps: mixing the modified high-functional polyester acrylate resin, the modified epoxy resin, the modified pentaerythritol triacrylate and the TPGDA, stirring and dispersing, adding the photoinitiators 1, 2 and 3, wetting and dispersing the dispersing agent, and then putting and dispersing the transparent talcum powder to obtain the product coating. The ultraviolet light curing coating can reach the required curing degree only by ultraviolet light energy of 40-80mj/m < 2 >, so that the energy required by curing the coating is greatly reduced, the construction efficiency is improved, and the possibility of quality defects generated on the backlight surface of a special-shaped workpiece is reduced.
As in the above-mentioned applications, the photo-curing coating in the prior art mostly uses mono-functional acrylate, di-functional acrylate and multi-functional acrylate as the base materials for preparing the coating, which greatly reduces the energy required for curing the coating and improves the construction efficiency, but has poor tensile strength and is difficult to maintain good hydrophobic self-cleaning property under acidic conditions.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a photo-curing coating for a steel structure.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a photo-curing coating for a steel structure comprises the following raw materials in parts by weight: 35-40 parts of monofunctional acrylate, 40-45 parts of beta-hydroxyethyl methacrylate, 50-60 parts of difunctional acrylate, 50-60 parts of tripropylene glycol diacrylate, 10-15 parts of fluorine-containing hyperbranched polyester acrylate, 2-5 parts of dispersing agent, 1.5-5 parts of flatting agent, 3.5-4.5 parts of photoinitiator and 10-15 parts of silicon dioxide.
As a further scheme of the invention: the light-cured coating for the steel structure comprises the following raw materials in parts by weight: 35-37 parts of monofunctional acrylate, 40-43 parts of beta-hydroxyethyl methacrylate, 50-55 parts of difunctional acrylate, 50-55 parts of tripropylene glycol diacrylate, 10-13 parts of fluorine-containing hyperbranched polyester acrylate, 2-3 parts of dispersing agent, 1.5-2.5 parts of flatting agent, 3.5-4 parts of photoinitiator and 10-13 parts of surface modified silicon dioxide.
As a further scheme of the invention: the light-cured coating for the steel structure comprises the following raw materials in parts by weight: 35 parts of monofunctional acrylate, 40 parts of methacrylic acid-beta-hydroxyethyl ester, 50 parts of difunctional acrylate, 50 parts of tripropylene glycol diacrylate, 10 parts of fluorine-containing hyperbranched polyester acrylate, 2 parts of dispersing agent, 1.5 parts of flatting agent, 3.5 parts of photoinitiator and 10 parts of surface modified silicon dioxide.
As a further scheme of the invention: the silica is a calcined silica or a surface-modified silica.
As a further scheme of the invention: the silicon dioxide has a silicon dioxide particle size of 120 nm-200 nm.
As a further scheme of the invention: the photoinitiator is one of 2-hydroxy-2-methyl-1-phenylacetone, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-2- (4-morpholinyl) -1- [4- (methylthio) phenyl ] -1-acetone and methyl benzoate.
As a further scheme of the invention: the leveling agent is one of polydimethylsiloxane, polyether polyester modified organosiloxane, alkyl modified organosiloxane and silicone oil.
The beneficial effects are that:
1. according to the photocuring coating for the steel structure, surface modified silicon dioxide is added in the formula, and because hydroxyl groups on the surface of the silicon dioxide are bonded with polar groups such as ureido and carbamate in the acrylate coating, the crosslinking density of the coating is improved to a certain extent, and further the hardness and water resistance of the coating after film formation are improved.
2. According to the photocureable coating for the steel structure, fluorine-containing hyperbranched polyester acrylate is added in the formula, and the radius of fluorine atoms is larger than that of hydrogen atoms, so that the carbon atoms and carbon chains can be effectively protected, the photocureable coating added with the fluorine-containing hyperbranched polyester acrylate is stable under neutral and acidic conditions, and the hydrophobic self-cleaning performance of the photocureable coating can be maintained for a long time.
Detailed Description
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Example 1
A photo-curing coating for a steel structure comprises the following raw materials in parts by weight: 35 parts of monofunctional acrylate, 40 parts of methacrylic acid-beta-hydroxyethyl ester, 50 parts of difunctional acrylate, 50 parts of tripropylene glycol diacrylate, 10 parts of fluorine-containing hyperbranched polyester acrylate, 2 parts of dispersing agent, 1.5 parts of flatting agent, 3.5 parts of photoinitiator and 10 parts of silicon dioxide.
A preparation method of a photo-curing coating for a steel structure comprises the following specific steps:
s01: weighing the raw materials according to parts by weight;
s02: firstly adding the weighed monofunctional acrylate and methacrylic acid-beta-hydroxyethyl ester into a preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, then adding the weighed difunctional acrylate and the tri-propylene glycol diacrylate into the preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, and controlling the temperature in the preparation tank to be 60-70 ℃ in the stirring and mixing process;
s03: adding fluorine-containing hyperbranched polyester acrylate into the mixture prepared in the step S02, stirring for 30min at a stirring speed of 800-1000r/min, controlling the temperature in a preparation tank to be 60-70 ℃, adding a photoinitiator, and adding a dispersing agent and stirring for 5min at a stirring speed of 800-1000r/min after the photoinitiator is dissolved;
s04: and then adding the leveling agent and the silicon dioxide into a preparation tank, stirring and dispersing uniformly, and filtering by adopting 200-400 mesh filter cloth to obtain the photo-curing coating.
Example 2
A photo-curing coating for a steel structure comprises the following raw materials in parts by weight: 36 parts of monofunctional acrylate, 41 parts of methacrylic acid-beta-hydroxyethyl ester, 52 parts of difunctional acrylate, 52 parts of tripropylene glycol diacrylate, 11 parts of fluorine-containing hyperbranched polyester acrylate, 3 parts of dispersing agent, 2 parts of flatting agent, 3.7 parts of photoinitiator and 11 parts of silicon dioxide.
A preparation method of a photo-curing coating for a steel structure comprises the following specific steps:
s01: weighing the raw materials according to parts by weight;
s02: firstly adding the weighed monofunctional acrylate and methacrylic acid-beta-hydroxyethyl ester into a preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, then adding the weighed difunctional acrylate and the tri-propylene glycol diacrylate into the preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, and controlling the temperature in the preparation tank to be 60-70 ℃ in the stirring and mixing process;
s03: adding fluorine-containing hyperbranched polyester acrylate into the mixture prepared in the step S02, stirring for 30min at a stirring speed of 800-1000r/min, controlling the temperature in a preparation tank to be 60-70 ℃, adding a photoinitiator, and adding a dispersing agent and stirring for 5min at a stirring speed of 800-1000r/min after the photoinitiator is dissolved;
s04: and then adding the leveling agent and the silicon dioxide into a preparation tank, stirring and dispersing uniformly, and filtering by adopting 200-400 mesh filter cloth to obtain the photo-curing coating.
Example 3
A photo-curing coating for a steel structure comprises the following raw materials in parts by weight: 37 parts of monofunctional acrylate, 42 parts of beta-hydroxyethyl methacrylate, 54 parts of difunctional acrylate, 54 parts of tripropylene glycol diacrylate, 12 parts of fluorine-containing hyperbranched polyester acrylate, 3 parts of dispersing agent, 2.5 parts of flatting agent, 3.9 parts of photoinitiator and 12 parts of silicon dioxide.
A preparation method of a photo-curing coating for a steel structure comprises the following specific steps:
s01: weighing the raw materials according to parts by weight;
s02: firstly adding the weighed monofunctional acrylate and methacrylic acid-beta-hydroxyethyl ester into a preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, then adding the weighed difunctional acrylate and the tri-propylene glycol diacrylate into the preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, and controlling the temperature in the preparation tank to be 60-70 ℃ in the stirring and mixing process;
s03: adding fluorine-containing hyperbranched polyester acrylate into the mixture prepared in the step S02, stirring for 30min at a stirring speed of 800-1000r/min, controlling the temperature in a preparation tank to be 60-70 ℃, adding a photoinitiator, and adding a dispersing agent and stirring for 5min at a stirring speed of 800-1000r/min after the photoinitiator is dissolved;
s04: and then adding the leveling agent and the silicon dioxide into a preparation tank, stirring and dispersing uniformly, and filtering by adopting 200-400 mesh filter cloth to obtain the photo-curing coating.
Example 4
A photo-curing coating for a steel structure comprises the following raw materials in parts by weight: 38 parts of monofunctional acrylate, 43 parts of methacrylic acid-beta-hydroxyethyl ester, 56 parts of difunctional acrylate, 56 parts of tripropylene glycol diacrylate, 13 parts of fluorine-containing hyperbranched polyester acrylate, 4 parts of dispersing agent, 4 parts of flatting agent, 4 parts of photoinitiator and 13 parts of silicon dioxide.
A preparation method of a photo-curing coating for a steel structure comprises the following specific steps:
s01: weighing the raw materials according to parts by weight;
s02: firstly adding the weighed monofunctional acrylate and methacrylic acid-beta-hydroxyethyl ester into a preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, then adding the weighed difunctional acrylate and the tri-propylene glycol diacrylate into the preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, and controlling the temperature in the preparation tank to be 60-70 ℃ in the stirring and mixing process;
s03: adding fluorine-containing hyperbranched polyester acrylate into the mixture prepared in the step S02, stirring for 30min at a stirring speed of 800-1000r/min, controlling the temperature in a preparation tank to be 60-70 ℃, adding a photoinitiator, and adding a dispersing agent and stirring for 5min at a stirring speed of 800-1000r/min after the photoinitiator is dissolved;
s04: and then adding the leveling agent and the silicon dioxide into a preparation tank, stirring and dispersing uniformly, and filtering by adopting 200-400 mesh filter cloth to obtain the photo-curing coating.
Example 5
A photo-curing coating for a steel structure comprises the following raw materials in parts by weight: 35 parts of monofunctional acrylate, 40 parts of beta-hydroxyethyl methacrylate, 50 parts of difunctional acrylate, 50 parts of tripropylene glycol diacrylate, 2 parts of dispersing agent, 1.5 parts of flatting agent and 3.5 parts of photoinitiator.
A preparation method of a photo-curing coating for a steel structure comprises the following specific steps:
s01: weighing the raw materials according to parts by weight;
s02: firstly adding the weighed monofunctional acrylate and methacrylic acid-beta-hydroxyethyl ester into a preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, then adding the weighed difunctional acrylate and the tri-propylene glycol diacrylate into the preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, and controlling the temperature in the preparation tank to be 60-70 ℃ in the stirring and mixing process;
s03: stirring the mixture prepared in the step S02 for 30min at a stirring speed of 800-1000r/min, controlling the temperature in a preparation tank to be 60-70 ℃, then adding a photoinitiator, and adding a dispersing agent to stir for 5min at a stirring speed of 800-1000r/min after the photoinitiator is dissolved;
s04: and then adding the leveling agent into a preparation tank, stirring and dispersing uniformly, and filtering by adopting 200-400 mesh filter cloth to obtain the photo-curing coating.
The detection results of the photo-curable coatings prepared in examples 1 to 5 are shown in the following table:
as can be seen from the analysis of the above experimental results, the photo-curing coating prepared in example 3 has the best tensile strength, hardness and hydrophobicity, so that the use effect of the prepared photo-curing coating is best, and referring to the data of examples 1 to 5 in the above table, it can be seen that the strength and the hydrophobic effect of the photo-curing coating both show a tendency of increasing and decreasing with increasing amounts of silica and fluorine-containing hyperbranched polyester acrylate.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (8)
1. The light-cured coating for the steel structure is characterized by comprising the following raw materials in parts by weight: 35-40 parts of monofunctional acrylate, 40-45 parts of beta-hydroxyethyl methacrylate, 50-60 parts of difunctional acrylate, 50-60 parts of tripropylene glycol diacrylate, 10-15 parts of fluorine-containing hyperbranched polyester acrylate, 2-5 parts of dispersing agent, 1.5-5 parts of flatting agent, 3.5-4.5 parts of photoinitiator and 10-15 parts of silicon dioxide.
2. The photocurable coating for steel structures according to claim 1, wherein the raw materials in parts by weight include: 35-37 parts of monofunctional acrylate, 40-43 parts of beta-hydroxyethyl methacrylate, 50-55 parts of difunctional acrylate, 50-55 parts of tripropylene glycol diacrylate, 10-13 parts of fluorine-containing hyperbranched polyester acrylate, 2-3 parts of dispersing agent, 1.5-2.5 parts of flatting agent, 3.5-4 parts of photoinitiator and 10-13 parts of surface modified silicon dioxide.
3. The photocurable coating for steel structures according to claim 1, wherein the raw materials in parts by weight include: 35 parts of monofunctional acrylate, 40 parts of methacrylic acid-beta-hydroxyethyl ester, 50 parts of difunctional acrylate, 50 parts of tripropylene glycol diacrylate, 10 parts of fluorine-containing hyperbranched polyester acrylate, 2 parts of dispersing agent, 1.5 parts of flatting agent, 3.5 parts of photoinitiator and 10 parts of surface modified silicon dioxide.
4. A photocurable coating for steel structures according to any one of claims 1-3, characterized in that the silica is a calcined silica or a surface modified silica.
5. The photocurable coating for steel structures according to claim 4, wherein the silica has a silica particle size of 120nm to 200nm.
6. The photocurable coating for steel structures according to claim 4, wherein said photoinitiator is one of 2-hydroxy-2-methyl-1-phenylpropion, 1-hydroxycyclohexylphenylketone, 2-methyl-2- (4-morpholinyl) -1- [4- (methylthio) phenyl ] -1-propanone and methyl benzoate.
7. The photocurable coating for steel structures according to claim 4, wherein the leveling agent is one of polydimethylsiloxane, polyether polyester modified organosiloxane, alkyl modified organosiloxane and silicone oil.
8. A method for preparing a photocurable coating for steel structures as recited in any one of claims 1-3, characterized by the specific steps of:
s01: weighing the raw materials according to parts by weight;
s02: firstly adding the weighed monofunctional acrylate and methacrylic acid-beta-hydroxyethyl ester into a preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, then adding the weighed difunctional acrylate and the tri-propylene glycol diacrylate into the preparation tank, then pre-dispersing for 3-5min at the stirring speed of 800-1000r/min, and controlling the temperature in the preparation tank to be 60-70 ℃ in the stirring and mixing process;
s03: adding fluorine-containing hyperbranched polyester acrylate into the mixture prepared in the step S02, stirring for 30min at a stirring speed of 800-1000r/min, controlling the temperature in a preparation tank to be 60-70 ℃, adding a photoinitiator, and adding a dispersing agent and stirring for 5min at a stirring speed of 800-1000r/min after the photoinitiator is dissolved;
s04: and then adding the leveling agent and the silicon dioxide into a preparation tank, stirring and dispersing uniformly, and filtering by adopting 200-400 mesh filter cloth to obtain the photo-curing coating.
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| CN101367922A (en) * | 2008-09-12 | 2009-02-18 | 中国科学技术大学 | A kind of fluorine-containing hyperbranched polyester acrylate and preparation method thereof |
| CN105017487A (en) * | 2014-04-28 | 2015-11-04 | 中国科学技术大学 | Preparing method for self-initiated photocuring acrylate/silicon dioxide composite material |
| CN105482073A (en) * | 2014-09-15 | 2016-04-13 | 海洋化工研究院有限公司 | Preparation of branched hydrophobic auxiliary agent |
| CN109575758A (en) * | 2018-10-31 | 2019-04-05 | 澳达树熊涂料(惠州)有限公司 | A kind of complete radium-shine coating dull finishing coat preparation method of ordor removing of ultraviolet light solidification |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101367922A (en) * | 2008-09-12 | 2009-02-18 | 中国科学技术大学 | A kind of fluorine-containing hyperbranched polyester acrylate and preparation method thereof |
| CN105017487A (en) * | 2014-04-28 | 2015-11-04 | 中国科学技术大学 | Preparing method for self-initiated photocuring acrylate/silicon dioxide composite material |
| CN105482073A (en) * | 2014-09-15 | 2016-04-13 | 海洋化工研究院有限公司 | Preparation of branched hydrophobic auxiliary agent |
| CN109575758A (en) * | 2018-10-31 | 2019-04-05 | 澳达树熊涂料(惠州)有限公司 | A kind of complete radium-shine coating dull finishing coat preparation method of ordor removing of ultraviolet light solidification |
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