CN115141504A - Maleic anhydride polybutadiene modified ultraviolet-curing polyacrylate coating composition and preparation method thereof - Google Patents
Maleic anhydride polybutadiene modified ultraviolet-curing polyacrylate coating composition and preparation method thereof Download PDFInfo
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- CN115141504A CN115141504A CN202110337566.3A CN202110337566A CN115141504A CN 115141504 A CN115141504 A CN 115141504A CN 202110337566 A CN202110337566 A CN 202110337566A CN 115141504 A CN115141504 A CN 115141504A
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
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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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Abstract
The invention relates to the technical field of chemical engineering, in particular to a maleic anhydride polybutadiene modified ultraviolet curing polyacrylate coating composition and a preparation method thereof. The invention provides a maleic anhydride polybutadiene modified ultraviolet curing polyacrylate coating composition and a preparation method thereof, aiming at solving the problem of low hardness of a coating formed by an ultraviolet curing polyacrylate coating. The composition comprises the following components: 100% of acrylate composition, 1-6% of maleic anhydride polybutadiene and a photoinitiator. The coating formed by the coating composition provided by the invention has film forming property, bending elasticity and adhesive force, has special high hardness and scratch resistance, and has excellent corrosion resistance.
Description
Technical Field
The invention relates to the technical field of chemical engineering, in particular to a coating composition. In particular to a maleic anhydride polybutadiene modified ultraviolet light curing polyacrylate coating composition and a preparation method thereof.
Background
Pure polyacrylic acid photosensitive resins are one of the most widely used ultraviolet curable coatings due to their good gloss, yellowing resistance and low cost, while inevitably having disadvantages such as low hardness, poor abrasion resistance and high shrinkage, which limit their wide industrial application. Therefore, uv curable polyacrylate coatings need further modification.
For example, patent No. CN201910214057.4 (publication No. CN109880418A, publication date: 2019, 6 and 14), invention name: a modified water-based polyacrylate emulsion, a preparation method and an application thereof utilize silica sol to modify the water-based polyacrylate emulsion to improve the curing speed and the mechanical property of the obtained coating. For example, patent No. CN202011189826.9 (publication No. CN112280043A, publication No. 2021, 1, 29, etc.) proposes a silica/polyacrylate/polysiloxane composite emulsion, which mainly comprises silica sol modification, preparation of silica/acrylate core-shell structure emulsion and preparation of silica/acrylate/polysiloxane composite emulsion, so as to obtain raspberry-shaped silica/acrylate/polysiloxane organic-inorganic hybrid emulsion with excellent performance, wherein the silica component in the particles of the emulsion provides hardness support; the acrylate provides film-forming properties; polysiloxanes provide weatherability, color retention and stain resistance. However, not only is the process complicated and expensive, but also the mechanical properties and all of the weather resistance and corrosion resistance properties cannot be achieved at the same time, and the industrial mass productivity is not achieved.
Disclosure of Invention
The invention provides a maleic anhydride polybutadiene modified ultraviolet curing polyacrylate coating composition and a preparation method thereof, aiming at solving the problem of low hardness of a coating formed by ultraviolet curing polyacrylate coating. The coating formed by the coating composition provided by the invention has film forming property, bending elasticity and adhesive force, has special high hardness and scratch resistance, and has excellent corrosion resistance.
In order to solve the technical problems, the invention adopts the following technical scheme.
The invention provides a maleic anhydride polybutadiene modified ultraviolet light curing polyacrylate coating composition, which comprises the following components: 100% of acrylate composition, 1-6% of maleic anhydride polybutadiene and photoinitiator.
Further, the acrylate combination is a combination of at least two of hydroxyethyl methacrylate (HEMA), tripropylene glycol diacrylate (TPGDA), trimethylolpropane triacrylate (TMPTA), pentaerythritol triacrylate (PETA), and dipentaerythritol hexaacrylate (DPHA).
Further, the acrylate combination is a combination of hydroxyethyl methacrylate (HEMA), tripropylene glycol diacrylate (TPGDA), and trimethylolpropane triacrylate (TMPTA).
Further, the mass ratio of hydroxyethyl methacrylate (HEMA), tripropylene glycol diacrylate (TPGDA) and trimethylolpropane triacrylate (TMPTA) is 1:3:4.
further, the composition comprises the following components: 100% of acrylate composition, 4% of maleic anhydride polybutadiene and 2% of photoinitiator.
Further, the photoinitiator is selected from one or the combination of at least two of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxycyclohexyl phenyl ketone, 2,4,6-trimethylbenzoyl-diphenyl phosphine oxide and benzophenone. Further, the photoinitiator is 2-hydroxy-2-methyl-1-phenyl-1-acetone. Further, the photoinitiator 2-hydroxy-2-methyl-1-phenyl-1-acetone is added in an amount of 2% by mass of the acrylate composition. Further, the mass of the added maleic anhydride polybutadiene is 4% of that of the acrylate combination.
The invention also provides a PET film, which comprises a substrate layer and a hard coating, wherein the hard coating is attached to the surface of the substrate layer, and the hard coating is formed by curing the coating composition.
Further, the substrate layer is PET (polyethylene terephthalate).
The invention also provides a preparation method of the maleic anhydride polybutadiene modified ultraviolet curing polyacrylate coating composition, which comprises the following steps:
(1) And mechanically stirring the acrylate combination, adding a certain amount of photoinitiator, and stirring to obtain the pure acrylate photocuring solution.
(2) Adding a certain amount of maleic anhydride polybutadiene into the pure acrylate photocuring solution obtained in the step (1), shading and sealing the solution, and dispersing under ultrasonic vibration; and finally obtaining the maleic anhydride polybutadiene modified ultraviolet curing polyacrylate coating composition by using a magnetic stirrer.
Further, the invention also provides a preparation method of the maleic anhydride polybutadiene (namely maleic anhydride polybutadiene, abbreviated as MLPB) modified ultraviolet-curing polyacrylate coating composition, which comprises the following steps:
(1) Mechanically stirring different systems of acrylate to prepare a UV curing polyacrylate system, adding a certain amount of photoinitiator, and stirring to obtain pure acrylate photocuring solution (named as PA).
(2) Adding a certain amount of MLPB into the PA solution, shading and sealing the solution, and dispersing under ultrasonic vibration. And finally obtaining the maleic anhydride polybutadiene (MLPB) modified ultraviolet curing polyacrylate coating composition by using a magnetic stirrer.
Maleic anhydride polybutadiene is abbreviated MLPB.
The coating composition was then applied to the top surface of a PET (125 μm) or dry clean Q235R steel substrate with a wet film applicator and cured under a mercury lamp to provide a maleic anhydride polybutadiene modified uv-cured polyacrylate coating.
Further, the different system acrylate (also referred to as acrylate combination) in step (1) is a combination of at least two of hydroxyethyl methacrylate (HEMA), tripropylene glycol diacrylate (TPGDA), trimethylolpropane triacrylate (TMPTA), pentaerythritol triacrylate (PETA) and dipentaerythritol hexaacrylate (DPHA). Preferably, the different system acrylate is a combination of hydroxyethyl methacrylate (HEMA), tripropylene glycol diacrylate (TPGDA), and trimethylolpropane triacrylate (TMPTA).
Further, the preferable charging amount of hydroxyethyl methacrylate (HEMA), tripropylene glycol diacrylate (TPGDA), trimethylolpropane triacrylate (TMPTA) in step (1) is 1:3:4.
further, the photoinitiator in the step (1) is one or a combination of at least two of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxycyclohexyl phenyl ketone, 2,4,6-trimethylbenzoyl-diphenyl phosphine oxide and benzophenone. Preferably, the photoinitiator is 2-hydroxy-2-methyl-1-phenyl-1-propanone (Darocur 1173).
Further, the photoinitiator 2-hydroxy-2-methyl-1-phenyl-1-acetone in the step (1) is added in an amount of 2% by mass of the acrylate system.
Further, the mass of the maleic anhydride polybutadiene (MLPB) added in the step (2) is 4% of that of the acrylate system.
Further, the coating composition was coated on the upper surface of a PET (125 μm) or a dry clean Q235R steel substrate with a wet film coater to a thickness of 10 to 20 μm.
The structural formula of the photoinitiator in the invention is as follows:
the mechanism of initiation of the photoinitiators of the present invention is shown in FIG. 1.
The invention uses a liquid flexible chain high molecular polymer maleic anhydride polybutadiene (MLPB), the relative molecular weight is 1220g/mol, the polyacrylate is modified as a main film forming system, the maleic anhydride polybutadiene (MLPB) is formed by grafting maleic anhydride on the basis of polybutadiene, a polyolefin skeleton in a molecular structure has better flexibility, water resistance, chemical resistance and thermal stability, an unsaturated double bond contained in the polybutadiene can be used for chemical modification of polyolefin, and an anhydride ring in the MLPB molecular structure can enable nonpolar polyolefin to have polarity, so that the nonpolar polyolefin can be dissolved in an aqueous solution, and the adhesive property and the mechanical impact resistance of the liquid polybutadiene to certain polar substrates can be improved. Therefore, the method for copolymerization modification by adding MLPB has important significance for preparing the low-cost photocureable coating with good mechanical property (impact resistance), aging resistance and corrosion resistance.
Drawings
FIG. 1 is a schematic diagram of the initiation mechanism of the photoinitiator according to the present invention.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description and is not intended to be limiting.
Example 1:
hydroxyethyl methacrylate (HEMA)/tripropylene glycol diacrylate (TPGDA)/trimethylolpropane triacrylate (TMPTA) =1:3:4, dropwise adding and mixing, and mechanically shaking uniformly. And adding 2% of photoinitiator (Darocur 1173) by mass ratio, magnetically stirring for 1h, and ultrasonically removing bubbles for 5min to obtain pure acrylate photocuring solution (named as PA).
Adding 4% of MLPB into the PA solution, shading and sealing the solution, and dispersing for 30min under ultrasonic vibration. And then mechanically stirring for 1 hour at a medium speed by using a magnetic stirrer to finally obtain the maleic anhydride polybutadiene modified ultraviolet light curing polyacrylate coating composition.
The coating composition was then applied to the upper surface of a PET (125 μm) or a dry clean Q235R steel substrate with a wet film applicator, and the sample was placed under irradiation from a high-pressure mercury lamp (1000W) at a lamp distance of 10cm from the surface of the sample in the air and an irradiation time of 30s on the PET substrate (curing time on Q235R steel substrate of 100 s), and a film-coated sample was prepared (thickness about 15 to 20 μm).
Example 2:
hydroxyethyl methacrylate (HEMA)/tripropylene glycol diacrylate (TPGDA)/trimethylolpropane triacrylate (TMPTA) =1:3:4, dropwise adding and mixing, and mechanically shaking uniformly. And adding 2% of photoinitiator (Darocur 1173) by mass ratio, magnetically stirring for 1h, and ultrasonically removing bubbles for 5min to obtain pure acrylate photocuring solution (named as PA).
Adding 2% of MLPB into the PA solution, shading and sealing the solution, and dispersing for 30min under ultrasonic vibration. And then mechanically stirring at medium speed for 1h by using a magnetic stirrer to finally obtain the maleic anhydride polybutadiene modified ultraviolet curing polyacrylate coating composition.
The coating composition was then applied to the upper surface of a PET (125 μm) or a dry clean Q235R steel substrate with a wet film applicator, and the sample was irradiated under a high pressure mercury lamp (1000W) at a lamp distance of 1 cm from the surface of the sample in the air for a period of 30s on the PET substrate (curing time on Q235R steel substrate of 100 s), and a film-coated sample was prepared (thickness of about 15 to 20 μm).
Example 3:
hydroxyethyl methacrylate (HEMA)/tripropylene glycol diacrylate (TPGDA)/trimethylolpropane triacrylate (TMPTA) =1:3:4, dropwise adding and mixing, and mechanically shaking uniformly. And adding 2% of photoinitiator (Darocur 1173) by mass ratio, magnetically stirring for 1h, and ultrasonically removing bubbles for 5min to obtain pure acrylate photocuring solution (named as PA).
Adding MLPB with the mass ratio of 1% into the PA solution, shading and sealing the solution, and dispersing for 30min under ultrasonic vibration. And then mechanically stirring at medium speed for 1h by using a magnetic stirrer to finally obtain the maleic anhydride polybutadiene modified ultraviolet curing polyacrylate coating composition.
The coating composition was then applied to the upper surface of a PET (125 μm) or a dry clean Q235R steel substrate with a wet film applicator, and the sample was irradiated under a high pressure mercury lamp (1000W) at a lamp distance of 1 cm from the surface of the sample in the air for a period of 30s on the PET substrate (curing time on Q235R steel substrate of 100 s), and a film-coated sample was prepared (thickness of about 15 to 20 μm).
Example 4:
hydroxyethyl methacrylate (HEMA)/tripropylene glycol diacrylate (TPGDA)/trimethylolpropane triacrylate (TMPTA) =1:3:4, dropwise adding and mixing, and mechanically shaking uniformly. And adding 2% of photoinitiator (Darocur 1173) by mass ratio, magnetically stirring for 1h, and ultrasonically removing bubbles for 5min to obtain pure acrylate photocuring solution (named as PA).
Adding MLPB with the mass ratio of 6% into the PA solution, shading and sealing the solution, and dispersing for 30min under ultrasonic vibration. And then mechanically stirring at medium speed for 1h by using a magnetic stirrer to finally obtain the maleic anhydride polybutadiene modified ultraviolet curing polyacrylate coating composition.
The coating composition was then applied to the upper surface of a PET (125 μm) or a dry clean Q235R steel substrate with a wet film applicator, and the sample was irradiated under a high pressure mercury lamp (1000W) at a lamp distance of 1 cm from the surface of the sample in the air for a period of 30s on the PET substrate (curing time on Q235R steel substrate of 100 s), and a film-coated sample was prepared (thickness of about 15 to 20 μm).
Comparative example 1:
hydroxyethyl methacrylate (HEMA)/tripropylene glycol diacrylate (TPGDA)/trimethylolpropane triacrylate (TMPTA) =1:3:4, dropwise adding and mixing, and mechanically shaking uniformly. And adding 2% of photoinitiator (Darocur 1173) by mass ratio, magnetically stirring for 1h, and ultrasonically removing bubbles for 5min to obtain pure acrylate photocuring solution (named as PA).
Then, a pure acrylate photocuring solution (PA) was coated on the upper surface of a PET (125 μm) or a dry clean Q235R steel substrate with a wet film coater, the sample was placed under irradiation from a high-pressure mercury lamp (1000W) at a distance of 1 cm from the surface of the sample in the air for 30s (curing time on Q235R steel substrate of 100 s), and a coated film sample was prepared (thickness of about 15 to 20 μm).
The main properties of the coatings formed from the coating compositions provided in the above examples and comparative examples were measured as follows:
pencil hardness (H): the test was carried out according to GB/T6739-86 using a pencil hardness tester of the PPH-1 type. And (3) after the paint film is solidified, placing the sample plate in a horizontal position, pushing pencils with gradually increased hardness to determine the surface position of the paint film, and taking the pencil hardness when no scratch just appears on the surface as the pencil hardness value of the paint film.
Adhesion test (B): according to GB/T9286-1998 adhesion test by a cross-cut method for colored paint and varnish, the surface of a coating film is cut into 10X 10 grids at intervals of 2mm by a cross-cut device by a cross-cut method, an adhesive tape is stuck on the grids, and then the adhesive tape is torn at a proper and uniform speed. And (3) performing adhesion tests at three different positions of the coating, wherein the number of the falling grids is 0, less than 5%, 5% -15%, 15% -35%, 35% -65% and more than 65%, and the adhesion grades are respectively 5B-0B.
The water resistance and the chemical resistance are tested according to GB/T1733-1993 paint film water resistance determination method, and the paint is soaked in distilled water for 24 hours at the temperature of 23 +/-2 ℃; according to GB1763-1979 "determination of the resistance of paint films to chemical reagents", 5% acetic acid, 5% NaHCO at 25. + -. 1% 3 10% ethanol and 5% NaCl was dropped on the paint film surface for 24 hours. Stage 1: no obvious change exists; and 2, stage: slight whitish and swollen, recoverable; and 3, level: white hair, swollen and unrecoverable; 4. stage (2): whitish and powdered, unrecoverable.
Flexural modulus of elasticity (GPa): using international standard ISO178:2001, measurement of Plastic-bending Property, the bending modulus of elasticity of a sample was measured, and the larger the bending modulus, the better the bending elasticity.
Impact resistance (kg/cm): the paint film is subjected to an impact resistance test according to the GB/T1732-93 "determination of the impact resistance of the paint film", the maximum height at which the paint film is not damaged representing the impact resistance of the paint film, unit: kilogram per centimeter (kg/cm).
And (3) friction and wear testing: the surface of the sample was rubbed with a rubber rubbing head of a multifunction rubbing tester weighing 500g at a moving rate of 68 cycles/min for a total of 1000 reciprocating movements. The wear cross-sectional area was measured, and a smaller area indicates better wear resistance.
Electrochemical impedance test (Ω. Cm) 2 ): impedance measurements were made in a three-electrode system. The reference electrode was a calomel electrode (SCE) and a platinum (Pt) electrode served as an auxiliary electrode. The electrolyte is 3.5% of NaCl solution in mass fraction, the electrochemical workstation PAR2273 is used, and the higher the obtained impedance value is, the better the insulativity is, and the stronger the corrosion resistance is. Is substantially at 10 10 The above can achieve good corrosion resistance.
Ultraviolet aging property: and (4) adopting ATLA equipment to simulate the light aging of illumination to detect the aging resistance of the coating. The test conditions are as follows: (1) irradiance is 1W/m2, and the period (2) is 6h, wherein the temperature in an ultraviolet stage is 3h and is 45 ℃, and the temperature in a condensation stage is 3h and is 45 ℃. After two periodic cycles, taking out a sample, wiping the surface clean, drying, and then evaluating the aging resistance of the coating and the composite material by adopting a water absorption test method, wherein the lower the water absorption is tested, the stronger the aging resistance of the material is.
TABLE 1 comparison of test results for coatings formed from maleic anhydride polybutadiene modified UV-curable polyacrylate coating compositions with PA coatings
The coating formed by the maleic anhydride polybutadiene modified ultraviolet curing polyacrylate coating composition provided by the invention has the advantages of high hardness, good corrosion resistance, good weather resistance, high adhesive force, good impact resistance, high light transmittance and good corrosion resistance. The coating formed by the maleic anhydride polybutadiene modified ultraviolet curing polyacrylate coating composition provided by the embodiment 1 has better comprehensive performance: on the premise of not reducing the light transmittance of the resin coating, the hardness, the impact resistance and the ultraviolet aging resistance are obviously improved, the anti-corrosion performance is excellent, and the anti-corrosion coating has important significance in the application aspect of industrial anti-corrosion and ultraviolet aging resistant coatings.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the disclosure of the present invention are covered by the scope of the claims of the present invention.
Claims (10)
1. A maleic anhydride polybutadiene modified ultraviolet light cured polyacrylate coating composition, characterized in that the composition comprises the following components: 100% of acrylate composition, 1-6% of maleic anhydride polybutadiene and photoinitiator.
2. The maleic anhydride polybutadiene-modified ultraviolet-curable polyacrylate coating composition according to claim 1, wherein the acrylate combination is a combination of at least two of hydroxyethyl methacrylate (HEMA), tripropylene glycol diacrylate (TPGDA), trimethylolpropane triacrylate (TMPTA), pentaerythritol triacrylate (PETA) and dipentaerythritol hexaacrylate (DPHA).
3. The maleic anhydride polybutadiene-modified UV-curable polyacrylate coating composition according to claim 1, wherein the acrylate combination is a combination of hydroxyethyl methacrylate (HEMA), tripropylene glycol diacrylate (TPGDA), and trimethylolpropane triacrylate (TMPTA).
4. The maleic anhydride polybutadiene-modified UV-curable polyacrylate coating composition according to claim 3, wherein the mass ratio of hydroxyethyl methacrylate (HEMA), tripropylene glycol diacrylate (TPGDA), and trimethylolpropane triacrylate (TMPTA) is 1:3:4.
5. the maleicanhydride polybutadiene-modified UV-curable polyacrylate coating composition according to claim 1, wherein said photoinitiator is selected from one or a combination of at least two of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-hydroxycyclohexyl phenyl ketone, 2,4,6-trimethylbenzoyl-diphenylphosphine oxide and benzophenone.
6. The maleic anhydride polybutadiene-modified UV-curable polyacrylate coating composition according to claim 5, wherein the photoinitiator is 2-hydroxy-2-methyl-1-phenyl-1-propanone.
7. The maleic anhydride polybutadiene modified UV-curable polyacrylate coating composition according to claim 6, wherein 2-hydroxy-2-methyl-1-phenyl-1-propanone as photoinitiator is added in an amount of 2% by weight of the acrylate composition.
8. The maleic anhydride polybutadiene-modified UV-curable polyacrylate coating composition according to claim 1, wherein the maleic anhydride polybutadiene is added in an amount of 4% by mass based on the acrylate composition.
9. A PET film comprising a substrate layer and a hard coat layer, wherein the hard coat layer is attached to a surface of the substrate layer, and the hard coat layer is formed by curing the coating composition according to any one of claims 1 to 8.
10. A method for preparing the maleic anhydride polybutadiene modified ultraviolet-curable polyacrylate coating composition according to claim 1, wherein the method comprises the following steps:
(1) And mechanically stirring the acrylate combination, adding a certain amount of photoinitiator, and stirring to obtain the pure acrylate photocuring solution.
(2) Adding a certain amount of maleic anhydride polybutadiene into the pure acrylate photocuring solution obtained in the step (1), shading and sealing the solution, and dispersing under ultrasonic vibration; then a magnetic stirrer is utilized to finally obtain the maleic anhydride polybutadiene modified ultraviolet light curing polyacrylate coating composition.
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| CN115491132B (en) * | 2021-06-18 | 2024-02-23 | 台湾永光化学工业股份有限公司 | Ultraviolet light curing composition |
| CN115895379A (en) * | 2022-11-10 | 2023-04-04 | 浩力森涂料（上海）有限公司 | Heat-resistant alkali-corrosion-resistant castor oil modified emulsion and preparation method thereof |
| CN115895379B (en) * | 2022-11-10 | 2023-08-29 | 浩力森涂料（上海）有限公司 | Castor oil modified emulsion resistant to alkali corrosion and preparation method thereof |
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