CN107841208B - 3D (three-dimensional) flashing varnish and preparation method thereof - Google Patents
3D (three-dimensional) flashing varnish and preparation method thereof Download PDFInfo
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- CN107841208B CN107841208B CN201710909780.5A CN201710909780A CN107841208B CN 107841208 B CN107841208 B CN 107841208B CN 201710909780 A CN201710909780 A CN 201710909780A CN 107841208 B CN107841208 B CN 107841208B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/36—Pearl essence, e.g. coatings containing platelet-like pigments for pearl lustre
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- 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
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Abstract
The invention relates to a 3D flashing varnish and a preparation method thereof, wherein the varnish is prepared by mixing the following components in parts by weight: 74-82 parts of bi-component acrylic resin, 0.1-0.8 part of scintillation pearl, 3-7 parts of aromatic hydrocarbon solvent, 11-17 parts of ester solvent, 0.5-1.8 parts of leveling auxiliary agent and 0.6-2.5 parts of drier. The flashing varnish can be used as the surface color of the automobile for quick color change, and the original varnish of the automobile can be directly sprayed on the ground color after being polished off. Matched with a matched curing agent and a matched diluent for use, and the color varnish comprises the following components in percentage by weight: curing agent: the diluent is 2:1, (0.3-0.5), after the original bottom layer of the vehicle is ground, the glitter varnish is sprayed for 2 times in a medium-wet mode and is baked to be dry. Compared with the prior art, the 3D flashing varnish has high flicker degree and weather resistance, uniform and stable pearlescent pigment, good color rendering property and good fullness, and can obviously improve the three-dimensional texture of metal ground color.
Description
Technical Field
The invention relates to a chemical varnish, in particular to a varnish for 3D flashing automobile color-changing spraying.
Background
The automobile color and the construction process are increasingly diversified, various, flickering and cool individual metal colors are more and more favored and sought by consumers, and many car owners tend to modify the original colors of the cars into more favorite new colors without great modification. The varnish is used as a two-component material for improving gloss, can be dried and solidified only by adding a curing agent, only a small amount of solid paint is added in the past, metal components such as pearls, aluminum powder and the like can be creatively added at present, and the 3D flashing varnish is produced at the same time. The base color is unchanged, pearly luster of various colors is added into the varnish, the original varnish is only needed to be ground when the color is changed, the 3D flashing varnish is sprayed on the base color of the original vehicle without spraying common varnish, the superimposed color of the pearly luster and the base color of the varnish is presented, the flashing degree is high, and the three-dimensional metal texture is more displayed and is sparkling under the irradiation of sunlight. And the operation is convenient and trouble-saving, the base color does not need to be sprayed, and the color changing cost is relatively low. Of course, the base color is changed, and then the 3D flashing varnish is sprayed, so that the base color can be selected according to the needs of consumers. The 3D flashing varnish has various pearly colors, such as white, blue, red, yellow and the like, can be sprayed on any metal base color, has reasonable matching of the base color and the surface color, can have different effects, and avoids the color offset phenomenon as much as possible. In addition to the field of automotive painting, similar products can also be used for industrial product (metal work piece) painting. Few 3D flashing varnish products are on the market, and the common defects of low pearly luster flashing degree and low weather resistance of the products in a plurality of low-end markets are overcome.
Chinese patent CN201510603295.6 discloses a three-process color varnish for automobile repair, which is mainly composed of bi-component acrylic resin, a trace amount of high-transparency colored paint, is used in the field of middle and high-end automobiles, is used as a top color paint to improve the chroma, is matched with a silver powder pearl base color paint, and is sprayed with the base color after the base color is sprayed. However, the metal particles are arranged on the bottom color paint layer, and the glittering stereoscopic impression is covered by the surface color varnish layer.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the automobile 3D flashing varnish with high flashing degree and good weather resistance and the preparation method thereof, and the 3D flashing varnish can highlight metal flashing texture.
The purpose of the invention can be realized by the following technical scheme:
the 3D flashing varnish is prepared by mixing the following components in parts by weight: 74-82 parts of bi-component acrylic resin, 0.1-0.8 part of scintillation pearl, 3-7 parts of aromatic hydrocarbon solvent, 11-17 parts of ester solvent, 0.5-1.8 parts of leveling auxiliary agent and 0.6-2.5 parts of drier.
The bi-component acrylic resin is high hydroxyl value (hydroxyl value is 3.8-4.2) acrylic resin, and Nuplex1198 is preferable.
The glittering pearl is selected from one or more of the commercial types of Ika Luxan E001 (white), F001 (white), Merck 5411 (white), Luxan E261 (blue), Luxan E221 (golden) and Luxan E241 (red).
The aromatic hydrocarbon solvent is one or a mixture of toluene and xylene.
The ester solvent is a mixture of two or more of propylene glycol methyl ether acetate, a dibasic ester mixture, and ethyl acetate or butyl acetate.
The leveling auxiliary agent is one or a mixture of an organic silicon leveling agent and an acrylate leveling agent, and the commercially available BYK 331 is preferably selected as the leveling auxiliary agent.
The drier is dibutyltin dilaurate.
The preparation method of the 3D flickering varnish comprises the following steps: sequentially weighing ester solvent, aromatic hydrocarbon solvent and scintillation pearl according to the weight ratio of 0.1-0.8 part of scintillation pearl, 3-7 parts of aromatic hydrocarbon solvent and 11-17 parts of ester solvent, and soaking to obtain a mixture A; weighing 74-82 parts of bi-component acrylic resin, and adding into a blending reaction kettle to obtain a mixture B; and adding the mixture A into the mixture B, stirring at a high speed for 5 minutes, adding 0.5-1.8 parts of leveling aid and 0.6-2.5 parts of drier, stirring at a high speed for 10 minutes, adjusting the viscosity, filtering and packaging after the detection is qualified, and thus obtaining the 3D flashing varnish.
The viscosity is generally adjusted by adding the same amount of ester solvent as the ingredients in mixture A.
The 3D flashing varnish can be used as a surface color varnish for quickly changing the color of an automobile, and the original varnish of the automobile can be polished off to directly spray the base color.
The 3D flashing varnish is matched with a matched curing agent and a diluent for use together, and the weight ratio of the 3D flashing varnish is as follows: curing agent: and (3) a diluent (2: 1) (0.3-0.5), after the bottom layer of the original vehicle is ground, spraying the mixture of the 3D scintillation varnish, the curing agent and the diluent for 2 times in a medium-humidity manner, and baking.
The adopted scintillation pearl is an artificially synthesized mica substrate, and compared with common mica, the scintillation pearl has higher composition purity, thicker and more regular particles, narrow particle size distribution and higher refractive index, and has stronger scintillation property because the particle size is thicker. The chemical structure of the pearl is metal oxide, the durability is strong, certain aging-resistant surface treatment is further carried out in the production process, the good weather resistance of the glittering pearl is determined, and the pearl is added into the high weather-resistant varnish, so the weather resistance is excellent. In the invention, the glittering pearl is a core component, the addition amount of the glittering pearl is the most critical, if the addition amount is too high, the particles are unevenly piled and dispersed, and if the addition amount is too low, the particles are sparsely distributed, and the glittering feeling is not strong.
Compared with the prior art, the 3D flashing varnish has high flicker degree and weather resistance, uniform and stable pearlescent pigment, good color rendering property and good fullness, and can obviously improve the three-dimensional texture of metal ground color.
Detailed Description
The present invention will be described in detail with reference to specific examples.
Example 1
The modified Dongfeng Nissan Xuanyong example is as follows:
weighing 17g of propylene glycol methyl ether acetate, 13g of butyl acetate, 10g of xylene and 0.6g of eka scintillation blue pearly-luster LuxanE2610.6 g in sequence, soaking for 12 hours, weighing 158g of double-component acrylic resin, adding the double-component acrylic resin into a reaction tank, adding the soaked mixture into the tank, stirring at 1500rpm for 5 minutes, adding 2.5g of drier and 2g of flatting agent, stirring at 1500rpm for 10 minutes, adding a proper amount of ester solvent to adjust viscosity, filtering and packaging after qualified detection, thus obtaining the required 3D scintillation varnish.
The using method comprises the following steps: after polishing off the pearl red original vehicle varnish layer, spraying the glitter varnish 2 times at medium humidity. Weighing 100g of 3D scintillation varnish, 50g of curing agent and 15g of diluent, uniformly stirring, spraying 1.5-2 times in a medium-wet mode, controlling the film thickness to be about 15-20 mu m, and baking for 30min at 60 ℃. After the paint film is dried, the glittering degree and the weather resistance are high, the blue pearlescent pigment is uniform and stable, the color rendering property is good, the fullness is good, and the three-dimensional texture of the base color of the red pearl can be obviously improved.
The varnish was subjected to quality testing, and the properties are shown in the following table:
as can be seen from the above, the varnish has qualified performance indexes, low color difference after artificial accelerated aging for 1000h, good weather resistance, high absolute values of Si (scintillation intensity) and Sa (scintillation area) at three angles of 15 degrees, 45 degrees and 75 degrees, and high scintillation degree.
Example 2
Example of modifying ford jianianhua emotion blue is as follows:
weighing 16.5g of propylene glycol methyl ether acetate, 13.8g of butyl acetate, 10.2g of xylene and 0.65g of Luxan light scintillation light, soaking for 14 hours, weighing 161g of double-component acrylic resin, adding the two-component acrylic resin into a reaction tank, adding the soaked mixture into the tank, stirring at 1500rpm for 6 minutes, adding 2.3g of drier and 2.1g of flatting agent, stirring at 1500rpm for 9 minutes, adding a proper amount of ester solvent to adjust viscosity, filtering and packaging after qualified detection, thus obtaining the required 3D scintillation varnish.
The using method comprises the following steps: after the varnish layer of the blue pearl chromogen car is ground off, the glitter varnish is sprayed for 2 times at medium humidity. Weighing 100g of 3D scintillation varnish, 50g of curing agent and 15g of diluent, uniformly stirring, spraying 1.5-2 times in a medium-wet mode, controlling the film thickness to be about 15-20 mu m, and baking for 30min at 60 ℃. After the paint film is dried, the glitter degree and the weather resistance are high, the white pearl pigment is uniform and stable, the color rendering property is good, the fullness is good, and the three-dimensional texture of the blue pearl background color can be obviously improved.
The varnish was subjected to quality testing, and the properties are shown in the following table:
example 3
Example of a modified baojun 730 quicksand gold is as follows:
weighing 16.7g of propylene glycol methyl ether acetate, 12.8g of butyl acetate, 9.6g of xylene and 9.62g of eka scintillation red pearlescent Luxan E2410.62g in sequence, soaking for 11 hours, weighing 159g of two-component acrylic resin, adding into a reaction tank, adding the soaked mixture into the tank, stirring at 1500rpm for 4.5 minutes, adding 2.1g of drier and 1.95g of flatting agent, stirring at 1500rpm for 10.5 minutes, adding a proper amount of ester solvent to adjust viscosity, filtering and packaging after qualified detection, thus obtaining the required 3D scintillation varnish.
The using method comprises the following steps: after the yellow-silver original vehicle varnish layer is polished off, the glitter varnish is sprayed for 2 times at medium humidity. Weighing 100g of 3D scintillation varnish, 50g of curing agent and 15g of diluent, uniformly stirring, spraying 1.5-2 times in a medium-wet mode, controlling the film thickness to be about 15-20 mu m, and baking for 30min at 60 ℃. After the paint film is dried, the glitter and the weather resistance are high, the red pearlescent pigment is uniform and stable, the color rendering property is good, the fullness is good, and the three-dimensional texture of the yellow silver ground color can be obviously improved.
The varnish was subjected to quality testing, and the properties are shown in the following table:
example 4
Examples of modifying popular cool candy white are as follows:
weighing 17.3g of propylene glycol methyl ether acetate, 13.4g of butyl acetate, 9.5g of xylene and 13.4g of eka glittering gold pearl Luxan E2210.62g in sequence, soaking for 13 hours, weighing 163g of double-component acrylic resin, adding the two-component acrylic resin into a reaction tank, adding the soaked mixture into the tank, stirring at 1400rpm for 6.5 minutes, adding 2.6g of drier and 2.1g of flatting agent, stirring at 1500rpm for 9.5 minutes, adding a proper amount of ester solvent to adjust viscosity, filtering and packaging after qualified detection, and thus obtaining the required 3D glittering varnish.
The using method comprises the following steps: after the plain white varnish layer was polished off, the glitter varnish was sprayed at medium humidity for 2 passes. Weighing 100g of 3D scintillation varnish, 50g of curing agent and 15g of diluent, uniformly stirring, spraying 1.5-2 times in a medium-wet mode, controlling the film thickness to be about 15-20 mu m, and baking for 30min at 60 ℃. After the paint film is dried, the glitter and the weather resistance are high, the red pearlescent pigment is uniform and stable, the color rendering property is good, the fullness is good, and the three-dimensional texture of the yellow silver ground color can be obviously improved.
The varnish was subjected to quality testing, and the properties are shown in the following table:
example 5
The example of modifying the modern new shenda beach gold is as follows:
weighing 16.9g of propylene glycol methyl ether acetate, 13.2g of butyl acetate, 10.3g of xylene and 54110.69 g of merck glittering gold pearls in sequence, soaking for 15 hours, weighing 158g of double-component acrylic resin, adding the two-component acrylic resin into a reaction tank, adding the soaked mixture into the tank, stirring at 1550rpm for 5.5 minutes, adding 2.4g of drier and 1.85g of flatting agent, stirring at 1450rpm for 10.3 minutes, adding a proper amount of ester solvent to adjust viscosity, filtering and packaging after qualified detection, and thus obtaining the required 3D glittering varnish.
The using method comprises the following steps: after the surface varnish layer of the gold-silver dust on the sand beach is ground off, the glitter varnish is sprayed for 2 times at a medium humidity. Weighing 100g of 3D scintillation varnish, 50g of curing agent and 15g of diluent, uniformly stirring, spraying 1.5-2 times in a medium-wet mode, controlling the film thickness to be about 15-20 mu m, and baking for 30min at 60 ℃. After the paint film is dried, the glitter and the weather resistance are high, the white pearlescent pigment is uniform and stable, the color rendering property is good, the fullness is good, and the three-dimensional texture of the gray silver ground color can be obviously improved.
The varnish was subjected to quality testing, and the properties are shown in the following table:
the embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (8)
1. Application of a 3D flashing varnish, characterized in that,
the 3D flashing varnish is used as a surface color paint for quickly changing the color of the automobile, and the original vehicle varnish can be directly sprayed on the ground color after being polished off;
the 3D flashing varnish is prepared by mixing the following components in parts by weight: 74-82 parts of bi-component acrylic resin, 0.1-0.8 part of scintillation pearl, 3-7 parts of aromatic hydrocarbon solvent, 11-17 parts of ester solvent, 0.5-1.8 parts of leveling auxiliary agent and 0.6-2.5 parts of drier;
the bi-component acrylic resin is acrylic resin with hydroxyl value of 3.8-4.2, and Nuplex1198 is selected;
the glittering pearl is selected from one or more of the commercial types of Ika Luxan E001, F001, Merck 5411, Luxan E261, Luxan E221 or Luxan E241.
2. The use of a 3D scintillating varnish according to claim 1, characterized in that the aromatic hydrocarbon solvent is one or a mixture of two of toluene and xylene.
3. The use of the 3D varnish according to claim 1, wherein the ester solvent is one or more selected from propylene glycol methyl ether acetate, a mixture of dibasic esters, and ethyl acetate or butyl acetate.
4. The application of the 3D flickering varnish according to claim 1, wherein the leveling assistant is one or a mixture of two of a silicone leveling agent and an acrylate leveling agent.
5. The use of a 3D glitter varnish according to claim 4, wherein the leveling agent is BYK 331 commercially available.
6. The use of a 3D scintillating varnish according to claim 1, wherein the drier is dibutyltin dilaurate.
7. The application of the 3D shimmering varnish according to claim 1, wherein the 3D shimmering varnish is used together with a matched curing agent and a matched diluent, and the weight ratio of the 3D shimmering varnish is as follows: curing agent: and (3) a diluent (2: 1) (0.3-0.5), after the bottom layer of the original vehicle is ground, spraying the mixture of the 3D scintillation varnish, the curing agent and the diluent for 2 times in a medium-humidity manner, and baking.
8. Use of the 3D scintillation varnish according to claim 1, characterized in that the 3D scintillation varnish is prepared with the following method:
sequentially weighing ester solvent, aromatic hydrocarbon solvent and scintillation pearl according to the weight ratio of 0.1-0.8 part of scintillation pearl, 3-7 parts of aromatic hydrocarbon solvent and 11-17 parts of ester solvent, and soaking to obtain a mixture A;
weighing 74-82 parts of bi-component acrylic resin, and adding into a blending reaction kettle to obtain a mixture B;
and adding the mixture A into the mixture B, stirring at a high speed, adding 0.5-1.8 parts of leveling assistant and 0.6-2.5 parts of drier, stirring at a high speed, adjusting the viscosity, filtering and packaging after the detection is qualified, and thus obtaining the 3D flashing varnish.
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