CN109535992B - High-wear-resistance high-gloss UV coating for PC (polycarbonate) substrate of automotive interior optical part and preparation method thereof - Google Patents
High-wear-resistance high-gloss UV coating for PC (polycarbonate) substrate of automotive interior optical part and preparation method thereof Download PDFInfo
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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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
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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- 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
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- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses a high-wear-resistance high-gloss UV coating for a PC (polycarbonate) substrate of an automotive interior optical part, which comprises the following raw materials in parts by weight: 35-55 parts of polyurethane acrylic resin A, 10-20 parts of polyurethane acrylic resin B, 5-15 parts of 1, 6-hexanediol diacrylate, 5-10 parts of a wear-resistant auxiliary agent, 1-3 parts of a leveling agent, 1-2 parts of an ultraviolet absorbent, 2-5 parts of a photoinitiator, 10-20 parts of a solvent and 40-60 parts of a diluent, wherein the functionalities of the polyurethane acrylic resin A and the polyurethane acrylic resin B are respectively 6-8 and 3.5-4. The coating can be directly coated on the PC surface, not only meets the conventional paint performances such as chemical resistance, weather resistance and the like required by automobile interior decoration, but also meets the light transmittance required by optical parts, and has the greatest advantage of meeting the requirement of high wear resistance which passes the test of GMW14444-2014(ASTM D-1044).
Description
Technical Field
The invention belongs to the technical field of automotive interior coatings, relates to a high-wear-resistance highlight UV coating for a PC (polycarbonate) substrate of an automotive interior optical part and a preparation method thereof, and particularly relates to a solvent-based UV coating which can be directly coated on the surface of PC (polycarbonate) to enable the surface to achieve high wear resistance.
Background
Along with the development trend of automobile intellectualization and internet, more and more automobiles are internally provided with multifunctional multimedia touch screen terminals such as integrated navigation, and the outer screens of the multimedia touch screen terminals are made of PC materials, so that the multimedia touch screen terminals have the advantages of high transparency, impact resistance and the like, but the PC materials have poor scratch resistance and abrasion resistance, so that a coating with high light transmittance and high scratch resistance and abrasion resistance is required to be developed as a protective coating of the outer screen.
However, the wear resistance and the transmittance of the existing coating are often not both available, that is, the existing coating meets the requirement of wear resistance but cannot meet the requirement of better transmittance; compared with the existing coating, the coating meets better transmittance, but cannot meet the requirement of wear resistance.
Disclosure of Invention
The first purpose of the invention is to provide a high-wear-resistance high-gloss UV coating for a PC substrate of an optical part of an automobile interior, which can be directly coated on the surface of PC, meets the light transmittance required by the optical part besides the conventional paint performances such as chemical resistance, weather resistance and the like required by the automobile interior, and has the greatest advantage of meeting the requirement of high wear resistance, wherein the wear resistance passes GMW14444-2014, and the test method is ASTM D-1044 performance test standard.
The second purpose of the invention is to provide a preparation method of the high wear-resistant high-gloss UV coating for the PC substrate of the optical part of the automobile interior, the prepared coating can be directly coated on the surface of PC, and the coating can meet the light transmittance required by the optical part besides the conventional paint performances such as chemical resistance, weather resistance and the like required by the automobile interior, and has the greatest advantage of meeting the requirement of high wear resistance, wherein the wear resistance passes GMW14444-2014, and the method is ASTM D-1044 performance test standard.
The technical scheme of the invention is as follows:
a high-wear-resistance high-gloss UV coating for a PC substrate of an optical part of an automobile interior is prepared from the following raw materials in parts by weight:
the functionality of the polyurethane acrylic resin A is 6-8; the functionality of the polyurethane acrylic resin B is 3.5-4.
Preferably, the wear-resistant auxiliary agent is one or more of polytetrafluoroethylene wax, nano-scale silicon dioxide or nano-scale aluminum oxide.
Preferably, the leveling agent is one or more of an organic silicon leveling agent, a polyacrylate leveling agent or a fluorine modified acrylic leveling agent.
Preferably, the organic silicon leveling agent is BYK 333; the polyacrylate leveling agent is TegoFlow 370; the fluorine modified acrylic leveling agent is BASF FL 3777N.
Preferably, the ultraviolet absorbent is one or more of Tinuvin400, Tinuvin152 or Tinuvin 123.
Preferably, the photoinitiator is an alpha-hydroxy ketone photoinitiator.
Preferably, the alpha-hydroxy ketone photoinitiator is BASF Irgacure 184.
Preferably, the solvent is one or more of ethyl acetate, butyl acetate, methyl isobutyl ketone, ethylene glycol butyl ether acetate or ethyl lactate.
Preferably, the diluent is a mixed solvent of butyl acetate/methyl isobutyl ketone/ethyl lactate, and the weight ratio of the mixed solvent to the diluent is 5:3: 2.
The invention also discloses a preparation method of the high-wear-resistance high-gloss UV coating for the PC substrate of the automotive interior optical part, which comprises the following steps:
(1) uniformly mixing polyurethane acrylic resin A, polyurethane acrylic resin B, 1, 6-hexanediol diacrylate and a proper amount of solvent at the temperature of 15-30 ℃ in a dark place according to the weight parts of the raw materials in the formula, then adding a wear-resistant assistant, a leveling agent and an ultraviolet absorbent under stirring, uniformly mixing until no uniformly dispersed particles are found on the surface of the mixture after the mixture is coated by transparent glass, and obtaining a mixed solution;
(2) and (2) dissolving the photoinitiator in the residual solvent, uniformly mixing the photoinitiator with the mixed solution prepared in the step (1), homogenizing the mixture by a homogenizing and dispersing machine, filtering the mixture, finally adding a diluent, and adjusting the viscosity to obtain the high-wear-resistance high-gloss UV coating.
Compared with the prior art, the invention has the following beneficial effects:
the high-wear-resistance highlight UV coating for the PC substrate of the automotive interior optical part is applied to the automotive interior optical part, can achieve a transparent and highlight surface, can meet the requirements of the automotive interior coating, and also can meet the high-wear-resistance characteristic of the surface of the optical part.
Drawings
FIG. 1 is a graph showing the results of testing GMW14444-2014,4.4.6, group 1, in example 2;
FIG. 2 is a graph showing the results of testing GMW14444-2014,4.4.6, group 2 of example 2;
FIG. 3 is a graph showing the results of testing GMW14444-2014,4.4.6 of group 3 in example 2.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. In practice, the invention will be understood to cover all modifications and variations of this invention provided they come within the scope of the appended claims.
The raw materials used in the following examples are commercially available materials unless otherwise specified, and among them, the raw materials are commercially available under the trade name BASF Laromer UA9047 for urethane acrylic resin a and under the trade name Allnex EB4680 for urethane acrylic resin B.
After the high abrasion resistance high gloss UV coating for the PC substrate of the optical part for the automotive interior prepared in the following examples is sprayed on the outer screen of the optical part prepared from the PC material, relevant performance tests including basic performance tests such as appearance, adhesion, high temperature crack resistance test and the like and abrasion resistance tests are carried out, wherein the basic performance tests are tested by GMW16877-2013, and the abrasion resistance tests are tested by ASTM D1044(GM 14444-2014).
Example 1
In this example 1, the influence of the usage amounts of the urethane acrylic resin a and the urethane acrylic resin B on the performance of the high-wear-resistance high-gloss UV coating is examined, wherein firstly, items which are usually used by a person skilled in the art to detect the performance of the coating, namely, the appearance, the adhesion and the 90 ℃ high-temperature cracking resistance experiment, are selected for evaluation; then, the test is carried out by GMW 16877-2013.
The high-abrasion-resistance high-gloss UV coating for the PC substrate of the optical part of the automobile interior in the embodiment 1 is prepared from the following raw materials in parts by weight: 10 parts of 1, 6-hexanediol diacrylate (HDDA), 5 parts of a wear-resistant auxiliary agent (Tivida AS1010), 1 part of a leveling agent (BYK333), 1 part of an ultraviolet absorber (Tinuvin400), 3 parts of a photoinitiator (Irgacure184), 7.5 parts of butyl acetate, 4.5 parts of methyl isobutyl ketone and 3 parts of ethyl lactate, wherein the using amounts of the polyurethane acrylic resin a (Laromer UA9047) and the polyurethane acrylic resin b (EB4680) are shown in the table I, and the diluent is a mixed solvent of 20 parts of butyl acetate, 12 parts of methyl isobutyl ketone and 8 parts of ethyl lactate, and the using amount can be adjusted according to the construction viscosity.
The preparation method of the high-wear-resistance high-gloss UV coating for the PC substrate of the automotive interior optical part mainly comprises the following steps:
(1) according to the weight parts of the raw materials in the formula, under the conditions of keeping out of the sun and at the temperature of 15-30 ℃, polyurethane acrylic resin A, polyurethane acrylic resin B, 1, 6-hexanediol diacrylate and a proper amount of solvent are mixed, stirred for about 15-30 minutes, uniformly mixed, then added with a wear-resistant assistant, a leveling agent and an ultraviolet absorbent under stirring, stirred for about 30-60 minutes, uniformly mixed until no uniformly dispersed particles are seen on the surface after the transparent glass is sprayed, and mixed liquid is obtained;
(2) dissolving a photoinitiator in the residual solvent, stirring and mixing the photoinitiator with the mixed solution prepared in the step (1), stirring for 15-30 minutes, homogenizing the mixture by a homogenizing and dispersing machine, uniformly mixing, performing pressure filtration by a candle filter element with the particle size of 1 micron, finally adding a diluent subjected to pressure filtration by the candle filter element with the particle size of 1 micron, and adjusting the spraying viscosity to obtain the high-wear-resistance high-gloss UV coating.
After the prepared high-wear-resistance high-gloss UV coating is coated on an optical component outer screen made of a PC material, relevant performance tests including appearance, adhesive force, high-temperature crack resistance tests and GMW16877-2013 are carried out. The coating method comprises the following steps: spraying onto PC substrate with 0.8-1.3mm air spray gun or rotary cup spray gun, wherein the film thickness is 15-20 μm, preheating is 5-10min (50-60 deg.C), and ultraviolet curing (energy is 800-2)。
Watch 1
On the basis of keeping the total solid content of the polyurethane acrylic resin A and the polyurethane acrylic resin B unchanged and keeping the total solid content of the polyurethane acrylic resin A and the polyurethane acrylic resin B as 100 percent of solid content resin, the proportion of the polyurethane acrylic resin A and the polyurethane acrylic resin B is changed. As can be seen from table one, the urethane acrylic resin a provides very good transparency and high gloss, and plays a major role in appearance, and the urethane acrylic resin B provides very good adhesion and high temperature crack resistance, and the ratio is adjusted to finally obtain: the optimal addition amount of the polyurethane acrylic resin A is 45 parts, and the optimal addition amount of the polyurethane acrylic resin B is 15 parts, so that the appearance is very good, and good adhesive force and high-temperature cracking resistance can be guaranteed.
In addition, GMW16877-2013 tests were performed, including the following tests, with the test results shown in Table two.
And (3) curing test: the mixed solvent of 92% ethanol and 8% butanone is used, after the solvent is dipped in the standard Test gauze of Test Fabric company, 500g of force is applied to perform reciprocating wiping for 10 times, no obvious softening phenomenon on the paint surface is observed under a 10X magnifier, and the staining grade AATCC on the Test gauze is more than or equal to grade 4.
Adhesive force of the adhesive tape: cross grid lines are scribed on the coating layer by an art designer at intervals of 1mm, lines with 6 lines in each direction are scribed to the depth of the substrate, a 3M 898 adhesive tape is tightly attached to the scribed surface of the coating layer, then the adhesive tape is rapidly torn off at an angle of 60 degrees, and whether the scribed area of the surface of the coating layer has a coating film falling off or not is observed
Sunscreen and insecticide testing: selecting an area of about 2cm x 2cm on the surface of the coating, uniformly coating an aqueous sunscreen liquid with a sunscreen index of SPF50, which is manufactured by American waterbaby brand, on the surface of the area, putting the area into an oven at 80 +/-1 ℃, storing for 1 hour, taking out the test board, and observing whether the paint coating on the surface has the adverse results of swelling, falling, discoloration and the like. The surface of the paint film was examined for the absence of scratch penetration into the substrate using an Erichsen Newton's pen, a 1mm hemispherical scratch, an 8N load, and a scratch on the surface of the paint film.
Dripping 1 microliter DEET solution with the concentration of more than 20% at the position of the coating surface 3 respectively, putting the solution into an oven at the temperature of 80 +/-1 ℃, storing the solution for 1 hour, taking out the test board, and observing whether the paint coating on the surface has the adverse results of bulging, falling, discoloration and the like. And scraping the surface of the coating by using an Erichsen Newton pen and a 1mm ball head under the load of 8N, wherein the phenomenon that the surface of the coating is not scraped and penetrated to the substrate is required.
Detergent testing: an appropriate amount of cleanser was instilled on the surface of the sample with a dropper and kept for 1 minute, and 10 back and forth rubs were performed with an appropriate amount of pressure using a white gauze. The gauze used was a Test cloth dedicated to Test Fabric. The color transfer rating on the white cloth and the color change rating on the surface of the sample plate both require AATCC to be more than or equal to 4. The cleaning agent has the following specifications: sonax brand glass water, Sonax brand interior cleaner, Fantastik409 cleaner, Sonax brand stain cleaner, Armor brand protective cleaner, alkaline glass cleaner.
And (3) testing the color fastness to abrasion: using a CrockMeter abrasion resistance tester from Atlas, rubbing a special wiping cloth on a sample plate for 10 times, observing no obvious color transfer on the wiping cloth, wherein the color change grade AATCC of the sample plate after rubbing is more than or equal to 4
Abrasion resistance: the panels were placed on a Taber5151 apparatus using a CS-10 abrading head, 500 grams load, and 1000 cycles of abrasion resistance test were applied to each 25 micron film thickness coating. Finally, the surface coating of the sample is judged to be not worn through to the substrate to be qualified.
Scratch resistance: the coating surface was scratched using an Erichsen 318 Newton pen with a 1mm hemispherical scratch, a load of 13N, requiring no scratch penetration of the coating surface into the substrate. The test was carried out under two conditions, the first being the sample receiving state and the second being after 168 hours of storage at 90. + -. 1 ℃.
Storage at high temperature of 90 ℃ and adhesive tape adhesion: the sample plate is placed at 90 +/-1 ℃ and stored for 168 hours, and the surface is checked to have no undesirable phenomena such as cracking, fading and the like. The adhesive force test of the adhesive tape requires not less than grade 2.
Light color fastness + moisture resistance + adhesive tape adhesion: the color fastness to light of Ci4000 from Atlas is tested using an SAE J2527 standard at an energy of 1240.8Kj/m2And storing the sample. The appearance of the sample plate is evaluated after storage, and the surface of the sample plate is free from bubbling and crackingAnd (3) evaluating the color of the AATCC according to the poor phenomena, wherein the AATCC grade is more than or equal to 4, the color difference value dE is less than or equal to 3, dL, da and db is less than or equal to 2, and the gloss change is less than or equal to 20%. And then placing the sample in a test box with 40 ℃ and 100% RH, carrying out a humidity resistance test for 168 hours, checking that the surface of the sample has no bad phenomena such as foaming, softening and the like after the test, and then carrying out a standard adhesive tape adhesion test, wherein the standard adhesive tape adhesion test is required to be more than or equal to grade 2.
Natural insolation: the samples were placed in a natural exposure yard dedicated to arizona, usa, using GMW3417 standard, and tested for total energy exceeding 105,000TNR Lanleys. After the test is finished, the appearance evaluation is carried out, the surface has no bad phenomena such as blistering and cracking, and the color change is required to be more than or equal to 6 grades (namely, no very obvious color change exists, and the reference AATCC grade is more than or equal to 4 grades.)
Watch two
Example 2
In this example 2, the influence of the amounts of different wear-resistant additives on the performance of the high-wear-resistant high-gloss UV coating is examined, and specifically, the high-wear-resistant high-gloss UV coating for the PC substrate of the automotive interior optical component in this example 1 is prepared from the following raw materials, by weight, 45 parts of polyurethane acrylic resin a (LaromerUA9047), 15 parts of polyurethane acrylic resin B (EB4680), 10 parts of 1, 6-hexanediol diacrylate (HDDA), 1 part of a leveling agent (BYK333), 1 part of an ultraviolet absorbent (Tinuvin400), 3 parts of a photoinitiator (Irgacure184), 7.5 parts of butyl acetate, 4.5 parts of methyl isobutyl ketone and 3 parts of ethyl lactate, and a mixed solvent of 20 parts of butyl acetate, 12 parts of methyl isobutyl ketone and 8 parts of ethyl lactate as a diluent, wherein the amounts of the wear-resistant additives are listed in table three.
The preparation method of the high-abrasion-resistance high-gloss UV coating for the PC substrate of the automotive interior optical part is the same as that of the example 1; the method of spraying the coating composition onto the PC substrate for the optical part of the interior of the automobile was the same as in example 1.
After the prepared high-wear-resistance high-gloss UV coating is coated on an optical component outer screen made of a PC material, relevant performance tests including a wear resistance test are carried out, wherein the wear resistance test passes GMW 14444-20144.4.6 and ASTM D1044, the test method is specifically shown in the third table, and the test result is shown in the fourth table.
Watch III
According to the ASTM D1044 standard, the test method is as follows: using a Taber5151 apparatus, the CS-10 polishing head was loaded, run 100 cycles with a 500g load, and the turbidity values before and after the test were compared. The haze value after the test requires less than 3% of the change rate of the haze value before the test.
Watch four
| Group of | 1 | 2 | 3 |
| Wear-resistant auxiliary agent/portion | 0 | 5 | 10 |
| Turbidity Change (%) | 17％ | 2％ | 2％ |
| Paint film appearance | Transparent highlight | Transparent highlight | Transparent highlight |
The total amount of the polyurethane acrylic resin is fixed in each group, the addition amount of the wear-resistant additive in each group is shown in the table four, after spraying and UV curing, the mixture is kept stand for 72 hours (23 +/-2 ℃) at normal temperature, and the turbidity change rate is required to be less than or equal to 3% to be qualified according to the test of GM14444-2014(ASTM D1044). FIG. 1 is a graph showing the results of group 1 GMW14444-2014,4.4.6 tests; FIG. 2 is a graph showing the results of group 2 GMW14444-2014,4.4.6 tests; FIG. 3 is a diagram showing the test results of GMW14444-2014 and 4.4.6 in group 3, wherein both FIG. 2 and FIG. 3 have the best effect, and satisfy the requirement that the turbidity change is less than or equal to 3%, and it can be known from Table four that the optimal addition amount of the anti-wear additive is finally concluded to be 5 parts. The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The high-wear-resistance high-gloss UV coating for the PC substrate of the optical part of the automobile interior is characterized by being prepared from the following raw materials in parts by weight:
the product model of the polyurethane acrylic resin A is Laromer UA 9047; the product model of the polyurethane acrylic resin B is Allnex EB 4680; the product model of the wear-resistant additive is Tivida AS 1010;
the high-wear-resistance high-gloss UV coating is prepared by the following preparation method:
(1) taking the raw materials in parts by weight, uniformly mixing polyurethane acrylic resin A, polyurethane acrylic resin B, 1, 6-hexanediol diacrylate and a proper amount of solvent at the temperature of 15-30 ℃ in a dark place, then adding a wear-resistant assistant, a leveling agent and an ultraviolet absorbent under stirring, uniformly mixing until no uniformly dispersed particles are found on the surface of the mixture after the mixture is coated by transparent glass, and obtaining a mixed solution;
(2) and (2) dissolving the photoinitiator in the residual solvent, uniformly mixing the photoinitiator with the mixed solution prepared in the step (1), homogenizing the mixture by a homogenizing and dispersing machine, filtering the mixture, finally adding a diluent, and adjusting the viscosity to obtain the high-wear-resistance high-gloss UV coating.
2. The high-abrasion-resistance high-gloss UV coating for the PC substrate of the automotive interior optical part according to claim 1, wherein the leveling agent is one or more of an organosilicon leveling agent, a polyacrylate leveling agent or a fluorine-modified acrylate leveling agent.
3. The high abrasion-resistant high gloss UV coating for PC substrate of optical component of automobile interior according to claim 2, characterized in that said silicone leveling agent is BYK 333; the polyacrylate leveling agent is TegoFlow 370; the fluorine modified acrylate leveling agent is BASF FL 3777N.
4. The high-abrasion-resistance high-gloss UV coating for the PC substrate of the automotive interior optical part according to claim 1, wherein the ultraviolet absorbent is one or more of Tinuvin400, Tinuvin152 or Tinuvin 123.
5. The high abrasion resistant high gloss UV coating for PC substrate of optical component for automobile interior according to claim 1, characterized in that said photoinitiator is alpha-hydroxy ketone photoinitiator.
6. The highly abrasion-resistant and high-gloss UV coating for the PC substrate of the automotive interior optical part according to claim 5, wherein the alpha-hydroxy ketone photoinitiator is BASF Irgacure 184.
7. The high abrasion-resistant high gloss UV coating for the PC substrate of the optical part of the automobile interior according to claim 1, wherein the solvent is one or more of ethyl acetate, butyl acetate, methyl isobutyl ketone, ethylene glycol butyl ether acetate or ethyl lactate.
8. The high abrasion-resistant high gloss UV coating for PC substrate of optical component of automobile interior according to claim 1, wherein the diluent is mixed solvent of butyl acetate/methyl isobutyl ketone/ethyl lactate, and the weight ratio is 5:3: 2.
9. The preparation method of the high-abrasion-resistance high-gloss UV coating for the PC substrate of the automotive interior optical part as claimed in any one of claims 1 to 8, characterized by comprising the following steps:
(1) taking the raw materials in parts by weight as claimed in claim 1, uniformly mixing polyurethane acrylic resin A, polyurethane acrylic resin B, 1, 6-hexanediol diacrylate and a proper amount of solvent at the temperature of 15-30 ℃ in the dark, then adding a wear-resistant assistant, a leveling agent and an ultraviolet absorbent under stirring, uniformly mixing until no uniformly dispersed particles are found on the surface of the mixture after the mixture is coated by transparent glass, and obtaining a mixed solution;
(2) and (2) dissolving the photoinitiator in the residual solvent, uniformly mixing the photoinitiator with the mixed solution prepared in the step (1), homogenizing the mixture by a homogenizing and dispersing machine, filtering the mixture, finally adding a diluent, and adjusting the viscosity to obtain the high-wear-resistance high-gloss UV coating.
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| CN114196184B (en) * | 2021-11-15 | 2023-08-01 | 吉安创德精密电子有限公司 | Toughened polycarbonate material or product and preparation method thereof |
| CN114806393A (en) * | 2022-05-27 | 2022-07-29 | 湖南宏泰新材料有限公司 | One-coating color-adding high-gloss UV (ultraviolet) curing coating for automotive interior and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090297724A1 (en) * | 2008-05-30 | 2009-12-03 | Weber Eileen M | Uv curable coating compositions containing aliphatic urethane acrylate resins |
| CN102719189A (en) * | 2012-06-18 | 2012-10-10 | 苏州今蓝纳米科技有限公司 | Nano coating and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090297724A1 (en) * | 2008-05-30 | 2009-12-03 | Weber Eileen M | Uv curable coating compositions containing aliphatic urethane acrylate resins |
| CN102719189A (en) * | 2012-06-18 | 2012-10-10 | 苏州今蓝纳米科技有限公司 | Nano coating and preparation method and application thereof |
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