CN109852230B - Ultraviolet-cured antifouling toughening high-temperature-resistant coating and preparation method thereof - Google Patents
Ultraviolet-cured antifouling toughening high-temperature-resistant coating and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an ultraviolet light curing type antifouling toughening high temperature resistant coating and a preparation method thereof, wherein the coating comprises the following components in percentage by mass: 10-40% of aliphatic polyurethane acrylic resin, 5-25% of functional I acrylic monomer, 5-25% of functional II acrylic monomer, 5-25% of reactive diluent, 10-40% of organic solvent, 0.5-3% of photoinitiator and 0.5-10% of other additives. The antifouling toughening high-temperature-resistant coating has good hydrophobic and oleophobic properties, high temperature resistance, toughness and glossiness, adopts a UV curing type, does not need high-temperature heating, and has wide applicable base materials; environmental protection, no pollution, short curing time and contribution to industrial production.
Description
Technical Field
The invention relates to the field of ultraviolet curing coatings, in particular to an ultraviolet curing type antifouling toughening high-temperature resistant coating and a preparation method thereof.
Background
In daily life, a plastic film such as a PVC film is mostly pasted on the surfaces of products such as metal sections, glass products, plastic products and the like, and the effect of protecting the surfaces of the products is achieved. However, according to the application scenarios and performance requirements of different products, the common plastic protective film is difficult to meet the functions of the individual requirements of customers. Therefore, based on the basic performance of protecting the surface, the protective film is endowed with auxiliary performances such as antifouling, toughening, ultraviolet resistance, high temperature resistance, aging resistance and the like, and plays an important role in protecting commodities.
Disclosure of Invention
The invention aims to provide an ultraviolet-curing antifouling toughening high-temperature-resistant coating and a preparation method thereof, aiming at the defects of the prior art.
The ultraviolet light curing type antifouling toughening high-temperature resistant coating comprises the following components in percentage by mass:
10-40% of aliphatic polyurethane acrylic resin
Functional I acrylic acid monomer 5-25%
5-25% of functional II acrylic monomer
5 to 25 percent of active diluent
10 to 40 percent of organic solvent
0.5 to 3 percent of photoinitiator
0.5 to 10 percent of other additives.
Wherein the functionality of the aliphatic polyurethane acrylic resin is 3-9, and the preferred functionality is 3-6; the aliphatic polyurethane acrylic resin contains a fluorine group.
Further, the functional I acrylic monomer is acrylic acid with flexible chain segments, such as methoxy, ethyl, ethoxy, phenoxy, phenoxymethyl, phenoxyethyl and the like, and preferably ethoxyacrylic acid.
Further, the functional II acrylic monomer is any one or two or three of 2-functional acrylic acid, 3-functional acrylic acid and 4-functional acrylic acid.
Further, the reactive diluent is selected from ethoxyethoxyethyl acrylate, tripropylene glycol diacrylate, 1, 6-ethylene glycol diacrylate, isobornyl acrylate, dioxane glycol diacrylate, 1, 4-butanediol diacrylate, neopentyl glycol diacrylate, polyethylene glycol dimethacrylate, etc.
Further, the organic solvent is one or two or three selected from absolute ethyl alcohol, isopropanol, n-butanol, ethyl acetate, butyl acetate, acetone, butanone, cyclohexanone, toluene, xylene, propylene glycol methyl ether acetate, ethylene glycol monobutyl ether, and the like.
Further, the photoinitiator includes any one or two of α, α -Diethoxyacetophenone (DEAP), dimethoxyphenylacetophenone (IRGACURE 651), hydroxycyclohexyl phenyl ketone (IRGACURE 184), 2-hydroxy-2-methyl-1-phenyl-1-propanone (DAROCUR 1173), 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone (IRGACURE 907), 2,4,6 (trimethylbenzoyl) diphenylphosphine oxide (TPO), benzoyl derivatives (PI 55), benzophenone (PI BP), methyl 2-benzoylbenzoate (PI MBB), and the like.
Further, the other additives comprise a leveling agent, a wetting agent and an anti-aging agentOne or more of a light stabilizer; the energy required by the curing of the coating is 500-1200 mJ/cm2。
The embodiment of the invention also provides a preparation method of the ultraviolet-curing antifouling toughening high-temperature-resistant coating, which comprises the following steps:
firstly, weighing raw materials according to a formula of the ultraviolet light curing type antifouling toughening high-temperature resistant coating;
then sequentially adding the aliphatic polyurethane acrylic resin, the functional I acrylic monomer and the functional II acrylic monomer into a reaction kettle, heating to 50-60 ℃, and stirring at low speed of 500 revolutions per minute for 20-30 minutes at 300-; then adding the active diluent and the organic solvent, and stirring for 20-30 minutes at the low speed of 1000-1500 rpm; adding the photoinitiator and other additives into the stirred mixture obtained in the step, stirring at the medium speed of 2000-3000 r/min for 5-10 minutes, and uniformly mixing to obtain the required coating.
The thickness of the coating formed after the coating is cured is 5-25 mu m, and the coating is not broken after being bent at 90 degrees. After the coating is cured, the coating can be placed at the temperature of 150-200 ℃ for 10-60s, and the performance of the coating is not affected.
The antifouling toughened high-temperature-resistant coating prepared by the invention has the following beneficial effects:
1. the coating disclosed by the invention is UV-curable, does not need high-temperature heating, and is wide in applicable base material; the curing agent is environment-friendly, pollution-free and short in curing time, and is beneficial to industrial production;
2. the coating has good adhesive force and scratch resistance, and has higher glossiness and transparency;
3. the coating has good heat bending resistance, high temperature resistance and no deformation after short-term heating.
4. The coating disclosed by the invention has the effects of antifouling and easy cleaning, and has excellent fingerprint resistance.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Example 1
The embodiment provides an ultraviolet-curing antifouling toughening high-temperature-resistant coating, which comprises the following components in percentage by mass:
| raw materials | Mass percent (%) |
| Polyurethane acrylic BEAMSET 1402 | 30％ |
| Functional I acrylic acid monomer 6150 | 5％ |
| Functional II acrylic monomer EM2204 | 25％ |
| Reactive diluent (tripropylene glycol diacrylate) | 5％ |
| Organic solvent (toluene/n-butanol 50/50 mass meter) | 30％ |
| Photoinitiator (DAROCUR 1173) | 3％ |
| Leveling agent BYK-333 | 0.5％ |
| Anti-aging agent 168 | 0.5％ |
| Light stabilizer UV-531 | 0.5％ |
| Other auxiliaries | 0.5％ |
The preparation method of the coating specifically comprises the following steps:
weighing the raw materials according to the formula of the coating; then, adding BEAMSET 1402, 6150 and EM2204 into the reaction kettle in sequence, heating to 55 ℃, and stirring for 25 min; adding an active diluent of tripropylene glycol diacrylate and an organic solvent with a toluene/n-butanol ratio of 50/50, and stirring at a low speed of 1000 revolutions per minute for 25 minutes; adding a photoinitiator and all the auxiliaries into the stirred mixture obtained in the step, stirring at the medium speed of 2000 rpm for 10 minutes, and uniformly mixing to obtain the antifouling toughening high-temperature-resistant coating.
The coating and curing method of the antifouling toughening high-temperature-resistant coating specifically comprises the following steps:
firstly, the coating is adopted to spray a substrate (100 mu m PVC film); then, the coated substrate was baked at 50 ℃ for 3min and further baked at 400mW/cm2And (5) curing for 40 seconds under the ultraviolet light intensity to finish the curing process.
And (3) performance testing: the thickness of the dry film is 15 mu m; hardness H (750 g); the adhesive force is 5B; gloss (60 °) > 100 °; the hydrophobic angle is 104 +/-2 degrees; the oil drainage angle is 65 degrees plus or minus 2 degrees; baking at 150 ℃ for 20s, and ensuring that the coating is not damaged; bending at 90 deg.C, and the coating is not damaged.
Example 2
The embodiment provides an ultraviolet-curing antifouling toughening high-temperature-resistant coating, which comprises the following components in percentage by mass:
| raw materials | Mass percent (%) |
| Polyurethane acrylic BEAMSET 1402 | 40％ |
| Functional I acrylic monomer EM210 | 10％ |
| Functional II acrylic monomer EM2204 | 10％ |
| Reactive diluent (neopentyl glycol diacrylate) | 15％ |
| Organic solvent (ethyl acetate/n-butanol 50/50, mass meter) | 20％ |
| Photoinitiator (DAROCUR 1173) | 3％ |
| Leveling agent BYK-333 | 0.5％ |
| Anti-aging agent JW-03-HH1020 | 0.5％ |
| Light stabilizer 783 | 0.5％ |
| Other auxiliaries | 0.5％ |
The preparation method of the coating specifically comprises the following steps:
weighing the raw materials according to the formula of the coating; then, adding BEAMSET 1402, EM210 and EM2204 into the reaction kettle in sequence, heating to 50 ℃ and stirring for 30 min; then adding an active diluent neopentyl glycol diacrylate ester and an organic solvent with the proportion of ethyl acetate/n-butyl alcohol being 50/50, and stirring for 20 minutes at a low speed of 1200 r/min; adding a photoinitiator and all the auxiliaries into the stirred mixture obtained in the step, stirring at the medium speed of 2000 rpm for 10 minutes, and uniformly mixing to obtain the antifouling toughening high-temperature-resistant coating.
The coating and curing method of the antifouling toughening high-temperature-resistant coating specifically comprises the following steps:
firstly, the coating is adopted to spray a substrate (100 mu m PVC film); then, the coated substrate was baked at 60 ℃ for 2min and then at 400mW/cm2And (5) curing for 40 seconds under the ultraviolet light intensity to finish the curing process.
And (3) performance testing: the thickness of the dry film is 15 mu m; hardness H (750 g); the adhesive force is 5B; gloss (60 °) > 100 °; the hydrophobic angle is 105 degrees plus or minus 2 degrees; the oil drainage angle is 65 degrees plus or minus 2 degrees; baking at 150 ℃ for 20s, and ensuring that the coating is not damaged; bending at 90 deg.C, and the coating is not damaged.
Example 3
The embodiment provides an ultraviolet-curing antifouling toughening high-temperature-resistant coating, which comprises the following components in percentage by mass:
the preparation method of the coating specifically comprises the following steps:
weighing the raw materials according to the formula of the coating; then, adding BEAMSET 1402, EM2411 and EM231 into the reaction kettle in sequence, heating to 60 ℃, and stirring for 20 min; then adding reactive diluent dioxane glycol diacrylate and organic solvent with the proportion of ethyl acetate/xylene being 60/40, and stirring at low speed of 1500 r/min for 20 minutes; adding a photoinitiator and all the auxiliaries into the stirred mixture obtained in the step, stirring at the medium speed of 3000 revolutions per minute for 50 minutes, and uniformly mixing to obtain the antifouling toughening high-temperature-resistant coating.
The coating and curing method of the antifouling toughening high-temperature-resistant coating specifically comprises the following steps:
firstly, the coating is adopted to spray a substrate (100 mu m PVC film); then, the coated substrate was baked at 55 ℃ for 3min and then at 400mW/cm2And curing for 60 seconds under the ultraviolet light intensity to finish the curing process.
And (3) performance testing: the thickness of the dry film is 15 mu m; hardness H (750 g); the adhesive force is 5B; gloss (60 °) > 100 °; the hydrophobic angle is 101 degrees plus or minus 2 degrees; the oil drainage angle is 62 degrees plus or minus 2 degrees; baking at 150 ℃ for 20s, and ensuring that the coating is not damaged; bending at 90 deg.C, and the coating is not damaged.
Example 4
The embodiment provides an ultraviolet-curing antifouling toughening high-temperature-resistant coating, which comprises the following components in percentage by mass:
the preparation method of the coating specifically comprises the following steps:
weighing the raw materials according to the formula of the coating; then, adding BEAMSET 1402, 6150-100 and EM2204 into the reaction kettle in sequence, heating to 55 ℃, and stirring for 25 min; adding an organic solvent with the active diluent of tripropylene glycol diacrylate and the proportion of ethyl acetate/propylene glycol methyl ether acetate of 60/40, and stirring at a low speed of 1000 revolutions per minute for 25 minutes; adding a photoinitiator and all the auxiliaries into the stirred mixture obtained in the step, stirring at the medium speed of 2000 rpm for 10 minutes, and uniformly mixing to obtain the antifouling toughening high-temperature-resistant coating.
The coating and curing method of the antifouling toughening high-temperature-resistant coating specifically comprises the following steps:
firstly, the coating is adopted to spray a substrate (100 mu m PVC film); the coated substrate was then brought to 50 deg.CBaking at temperature for 3min, and baking at 400mW/cm2And (5) curing for 40 seconds under the ultraviolet light intensity to finish the curing process.
And (3) performance testing: the thickness of the dry film is 15 mu m; hardness H (750 g); the adhesive force is 5B; gloss (60 °) > 100 °; the hydrophobic angle is 104 +/-2 degrees; the oil drainage angle is 65 degrees plus or minus 2 degrees; baking at 150 ℃ for 20s, and ensuring that the coating is not damaged; bending at 90 deg.C, and the coating is not damaged.
The above-described embodiments are intended to illustrate rather than to limit the invention, and any modifications and variations of the present invention are within the spirit of the invention and the scope of the claims.
Claims (6)
1. The ultraviolet-curing antifouling toughening high-temperature-resistant coating is characterized by comprising the following components in percentage by mass:
25-40% of aliphatic polyurethane acrylic resin
Functionality
Acrylic acid monomer 5-25%
Functionality
Acrylic acid monomer 5-25%
5 to 25 percent of active diluent
10 to 40 percent of organic solvent
0.5 to 3 percent of photoinitiator
0.5 to 10 percent of other additives
Said functionality
The acrylic monomer is one of 6150, EM210 or EM 2411; the aliphatic polyurethane acrylic resin is BEAMSET 1402; the functional II acrylic monomer adopts EM2204 or EM 231; the thickness of the coating formed after the coating is cured is 5-25 mu m, the coating is not broken after being bent at 90 degrees, and the coating is not influenced by the performance after being placed for 10-60s at the temperature of 150-200 ℃.
2. The ultraviolet-curable antifouling toughening high-temperature-resistant coating as claimed in claim 1, wherein: the active diluent is selected from ethoxy ethyl acrylate, tripropylene glycol diacrylate, 1, 6-ethylene glycol diacrylate, isobornyl acrylate, dioxane glycol diacrylate, 1, 4-butanediol diacrylate, neopentyl glycol diacrylate and polyethylene glycol dimethacrylate.
3. The ultraviolet-curable antifouling toughening high-temperature-resistant coating as claimed in claim 1, wherein: the organic solvent is one or two or three of absolute ethyl alcohol, isopropanol, n-butanol, ethyl acetate, butyl acetate, acetone, butanone, cyclohexanone, toluene, xylene, propylene glycol methyl ether acetate and ethylene glycol monobutyl ether.
4. The ultraviolet-curable antifouling toughening high-temperature-resistant coating as claimed in claim 1, wherein: the photoinitiator comprises any one or two of alpha, alpha-diethoxyacetophenone, dimethoxyphenylacetophenone, hydroxycyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-acetone, 2,4,6 (trimethylbenzoyl) diphenyl phosphine oxide, benzophenone and methyl 2-benzoylbenzoate.
5. The ultraviolet-curable antifouling toughening high-temperature-resistant coating as claimed in claim 1, wherein: the other additives comprise one or more of leveling agents, wetting agents, aging inhibitors and light stabilizers.
6. The ultraviolet-curable antifouling toughening high-temperature-resistant coating as claimed in claim 1, wherein: the energy required by the curing of the coating is 500-1200 mJ/cm2。
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| CN110343462A (en) * | 2019-06-14 | 2019-10-18 | 宁波富纳新材料科技有限公司 | Saturating hardening wear-resistant paint of a kind of height for COP material and preparation method thereof and coating and curing method |
| CN110343463A (en) * | 2019-06-14 | 2019-10-18 | 宁波富纳新材料科技有限公司 | A kind of antifouling nano coating of hot bending hardening and preparation method thereof and coating and curing method |
| CN110330884A (en) * | 2019-06-20 | 2019-10-15 | 宁波富纳新材料科技有限公司 | A kind of ultraviolet curing type has the photochromic coating and its preparation and application of antifouling hardening function |
| CN112574605B (en) * | 2020-11-30 | 2022-05-06 | 上海甘田光学材料有限公司 | Photochromic film and preparation method thereof |
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