CN115449297B - Coating and preparation method thereof - Google Patents
Coating and preparation method thereof Download PDFInfo
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- CN115449297B CN115449297B CN202211215406.2A CN202211215406A CN115449297B CN 115449297 B CN115449297 B CN 115449297B CN 202211215406 A CN202211215406 A CN 202211215406A CN 115449297 B CN115449297 B CN 115449297B
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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
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
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Abstract
A coating and a preparation method thereof. The application relates to the technical field of flexible display, and provides a coating, which comprises the following components in percentage by weight, based on 100% of the total weight of the coating: 2-20% of epoxidized soybean oil acrylate, 0.1-0.5% of initiator, 0.55-2.6% of clay material and 80-97% of water. The coating provided by the application contains the epoxy soybean oil acrylic ester, so that the coating formed by the coating after construction has the advantages of high colorless transparency, good flexibility and good adhesive force; the clay material can increase the permeation resistance of the gas material and improve the gas diffusion resistance of the coating, thereby having a barrier effect on oxygen; the initiator can initiate the active group polymerization of the epoxidized soybean oil acrylate to promote the paint to form an oil-in-water structure, so that the coating has good hydrophobicity and has a barrier effect on water vapor. Therefore, the coating disclosed by the application can improve the defect of poor water-oxygen barrier capability of the PET substrate after the coating is formed on the surface of the PET substrate.
Description
Technical Field
The application belongs to the technical field of flexible display, and particularly relates to a coating and a preparation method thereof.
Background
The flexible display is made of soft materials, adopts plastic films to replace the traditional hard glass as a substrate material, is suitable for large-area roll-to-roll automatic production, and reduces the industrial production cost. Meanwhile, the portable electronic device has the advantages of light weight, small thickness, easiness in curling, convenience in carrying and the like, and has wide application in the fields of portable computers, intelligent cards, creative design display and the like.
In the flexible display field, main substrate materials include PI (Polyimide) and PET (Polyethylene terephthalate ), and PI has advantages of good thermal stability, strong barrier property, excellent mechanical properties, high tensile strength, etc., but has characteristics of yellowing color and strong birefringence, which are easy to interfere with the display device, and has high cost, which is difficult to popularize and use on a large scale. Compared with PI, PET has low cost, but has the problems of low glass transition temperature, large thermal expansion coefficient, easy thermal deformation, poor water-oxygen barrier capability, poor ultraviolet resistance and the like. Particularly in terms of water-oxygen barrier ability, the lifetime of PET substrates and display devices is greatly affected, and thus improvement is urgently required.
Disclosure of Invention
The application aims to provide a coating and a preparation method thereof, and aims to solve the problem that the existing PET substrate is poor in water-oxygen barrier capability.
In order to achieve the purposes of the application, the technical scheme adopted by the application is as follows:
in a first aspect, the present application provides a coating, comprising the following components in weight percent, based on 100% total weight of the coating:
in a second aspect, the present application provides a method of preparing a coating comprising the steps of:
providing epoxidized soybean oil acrylate, an initiator, a clay material and water;
adding clay material into water for dispersion treatment to obtain clay dispersion liquid;
mixing the epoxidized soybean oil acrylic ester, clay dispersion liquid and an initiator, and performing emulsification treatment to obtain the coating.
Compared with the prior art, the application has the following beneficial effects:
the paint provided by the first aspect of the application comprises epoxidized soybean oil acrylic ester, an initiator, clay materials and water; the epoxy soybean oil acrylic ester has small molecular chain length and crosslinking density, so that the epoxy soybean oil acrylic ester has good flexibility, is stretchable and has high transparency, and the coating formed by the coating has the advantages of high colorless transparency, good flexibility, good adhesive force and the like after construction; the clay material can increase the permeation resistance of the gas material, so that the gas diffusion resistance of the coating is improved, and the coating has a barrier effect on oxygen; the initiator can initiate the polymerization of active groups of the epoxidized soybean oil acrylate to promote the paint to form an oil-in-water structure, so that no organic solvent volatilizes, the paint is environment-friendly, and the coating formed after the construction of the paint is subjected to water evaporation has good hydrophobicity and has a barrier effect on water vapor; the initiator can also promote the reaction of the epoxidized soybean oil acrylate and the clay material to form a stable covalent bond, so that the binding force between the epoxidized soybean oil acrylate and the clay material is enhanced. Therefore, after the coating is formed on the surface of the PET substrate, the coating can play a role in blocking water vapor and oxygen, so that the defect of poor water-oxygen blocking capability of the PET substrate can be overcome.
According to the preparation method of the coating provided by the second aspect of the application, the clay material is firstly added into water for dispersion treatment to obtain the clay dispersion liquid, then the epoxidized soybean oil acrylic ester, the clay dispersion liquid and the initiator are mixed for emulsification treatment, so that the coating with the oil-in-water structure can be obtained, and after the coating is formed on the surface of the PET substrate, the coating has a barrier effect on water vapor and oxygen, and the defect of poor barrier capability of the PET substrate on water and oxygen can be overcome. In addition, the preparation method is simple to operate, low in cost and suitable for large-scale production and application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a process flow diagram of a method for preparing a coating provided by an embodiment of the application;
FIG. 2 is a TEM image of montmorillonite provided in example 4 of the application before and after exfoliation;
FIG. 3 is a TEM image of the soapstone provided in example 5 of the present application before and after stripping;
fig. 4 is an infrared chart of epoxidized soybean oil and epoxidized soybean oil acrylate provided in example 1 of the present application.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In the present application, the term "and/or" describes an association relationship of an association object, which means that three relationships may exist, for example, a and/or B may mean: a alone, a and B together, and B alone. Wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship.
In the present application, "at least one" means one or more, and "a plurality" means two or more. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, "at least one (individual) of a, b, or c," or "at least one (individual) of a, b, and c," may each represent: a, b, c, a-b (i.e., a and b), a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple, respectively.
It should be understood that, in various embodiments of the present application, the sequence number of each process described above does not mean that the execution sequence of some or all of the steps may be executed in parallel or executed sequentially, and the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The weights of the relevant components mentioned in the description of the embodiments of the present application may refer not only to the specific contents of the components, but also to the proportional relationship between the weights of the components, so long as the contents of the relevant components in the description of the embodiments of the present application are scaled up or down within the scope of the disclosure of the embodiments of the present application. Specifically, the mass described in the specification of the embodiment of the application can be mass units known in the chemical industry field such as mu g, mg, g, kg.
The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated for distinguishing between objects such as substances from each other. For example, a first XX may also be referred to as a second XX, and similarly, a second XX may also be referred to as a first XX, without departing from the scope of embodiments of the application. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
The first aspect of the embodiment of the application provides a coating, which comprises the following components in percentage by weight, based on 100% of the total weight of the coating:
the coating provided by the embodiment of the application comprises epoxidized soybean oil acrylic ester, an initiator, clay materials and water; the epoxy soybean oil acrylic ester has small molecular chain length and crosslinking density, so that the epoxy soybean oil acrylic ester has good flexibility, is stretchable and has high transparency, and the coating formed by the coating has the advantages of high colorless transparency, good flexibility, good adhesive force and the like after construction; the clay material can increase the permeation resistance of the gas material, so that the gas diffusion resistance of the coating is improved, and the coating has a barrier effect on oxygen; the initiator can initiate the polymerization of active groups of the epoxidized soybean oil acrylate to promote the paint to form an oil-in-water structure, so that no organic solvent volatilizes, the paint is environment-friendly, and the coating formed after the construction of the paint is subjected to water evaporation has good hydrophobicity and has a barrier effect on water vapor; the initiator can also promote the reaction of the epoxidized soybean oil acrylate and the clay material to form a stable covalent bond, so that the binding force between the epoxidized soybean oil acrylate and the clay material is enhanced. Therefore, after the coating is formed on the surface of the PET substrate, the coating can play a role in blocking water vapor and oxygen, so that the defect of poor water-oxygen blocking capability of the PET substrate can be overcome.
In an embodiment, the coating comprises the following components in percentage by weight: 3 to 6 percent of epoxidized soybean oil acrylic ester, 0.1 to 0.3 percent of initiator, 0.9 to 1.7 percent of clay material and 92 to 96 percent of water. The epoxy soybean oil acrylic ester in the coating in the embodiment can ensure that the coating formed by the coating after construction has the advantages of high transparency, good adhesive force, good toughness and the like, and the clay material in the coating in the embodiment can further increase the permeation resistance of the gas material, so that the coating has better gas diffusion resistance, and the initiator in the coating in the embodiment can ensure the stability of the coating, can ensure better hydrophobicity of the coating and has better barrier effect on water vapor.
In an embodiment, the coating contains 2 to 20% of epoxidized soybean oil acrylate, preferably 3 to 6%. The epoxy soybean oil acrylic ester has the advantages of good flexibility, stretchability, excellent mechanical properties, high transparency, low cost and environmental friendliness, and therefore, the epoxy soybean oil acrylic ester is added into the coating, so that the coating formed by the coating has the advantages of high colorless transparency, good flexibility, good adhesive force and the like after construction, and meanwhile, the coating has the advantages of low cost and environmental friendliness. In particular applications, the epoxy soybean oil acrylate may be 2%, 3%, 6%, 8%, 10%, 15%, 20% by weight. In the weight percentage content range of the epoxidized soybean oil acrylic ester provided by the embodiment of the application, the coating has optimal comprehensive performance.
In embodiments, the coating contains 0.55 to 2.6% clay material, preferably 0.9 to 1.7%. The clay material is added into the coating, so that the permeation resistance of the gas material can be increased, the gas diffusion resistance of the coating can be improved, and the coating has a barrier effect on oxygen. In particular applications, the clay material may be present in an amount of 0.55%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.5%, 2.0%, 2.5%, 2.6% by weight. In the weight percentage content range of the clay material provided by the embodiment of the application, the coating formed by the coating can fully play a role in blocking oxygen, and has an optimal blocking effect on oxygen.
In an embodiment, the clay material comprises at least one of a one-dimensional clay material, a two-dimensional clay material. For example, the clay material may be a one-dimensional clay material or a two-dimensional clay material, and the clay material may also be composed of a one-dimensional clay material and a two-dimensional clay material, and the mass ratio of the one-dimensional clay material to the two-dimensional clay material is (0.1-0.3): 1, for example, the mass ratio of one-dimensional clay material to two-dimensional clay material may be 0.1: 1. 0.15: 1. 0.2: 1. 0.25: 1. 0.3:1. the one-dimensional clay material can fill gaps between the two-dimensional clay materials, so that under the synergistic effect of the one-dimensional clay material and the two-dimensional clay material, the permeation resistance of the gas material can be further increased, the gas diffusion resistance of the coating is further improved, and the better barrier effect on oxygen is achieved.
In an embodiment, the one-dimensional clay material comprises at least one of sepiolite, saponite, attapulgite. In a specific application, the one-dimensional clay material may be saponite, but also sepiolite.
In an embodiment, the two-dimensional clay material comprises at least one of montmorillonite, vermiculite, mica, kaolin. In a specific application, the two-dimensional clay material may be montmorillonite, and also kaolin.
In embodiments, the coating contains 0.1 to 0.5% initiator, preferably 0.1 to 0.3%. The initiator is added into the coating, so that on one hand, the polymerization of active groups of the epoxidized soybean oil acrylate can be initiated, the coating is promoted to form an oil-in-water structure, therefore, no organic solvent volatilizes, the coating is environment-friendly, and the coating formed after the construction is carried out and water evaporation has good hydrophobicity and has a barrier effect on water vapor. On the other hand, the initiator can also promote the reaction of the epoxidized soybean oil acrylate and the clay material to form a stable covalent bond, so that the binding force between the epoxidized soybean oil acrylate and the clay material is enhanced. In particular applications, the initiator may be present in an amount of 0.1%, 0.2%, 0.3%, 0.4%, 0.5% by weight. The initiator provided by the embodiment of the application has the advantages that the paint with the oil-in-water structure can be ensured to be formed within the weight percentage content range, the organic solvent is not volatilized, the environment is friendly, the optimal hydrophobicity is realized after the paint is formed, and the optimal barrier effect on water vapor is realized.
In an embodiment, the initiator comprises at least one of dibenzoyl peroxide, lauroyl peroxide, cumene hydroperoxide, t-butyl hydroperoxide, di-t-butyl peroxide. In particular applications, the initiator may be dibenzoyl oxide, and may also be lauroyl peroxide.
A second aspect of the embodiment of the present application provides a method for preparing a coating, as shown in FIG. 1, including the steps of:
s10: providing epoxidized soybean oil acrylate, an initiator, a clay material and water;
s20: adding clay material into water for dispersion treatment to obtain clay dispersion liquid;
s30: mixing the epoxidized soybean oil acrylic ester, clay dispersion liquid and an initiator, and performing emulsification treatment to obtain the coating.
According to the preparation method of the coating provided by the embodiment of the application, firstly, the clay material is added into water for dispersion treatment to obtain the clay dispersion liquid, then, the epoxidized soybean oil acrylic ester, the clay dispersion liquid and the initiator are subjected to emulsification treatment to obtain the coating with the oil-in-water structure, and after the coating is formed on the surface of the PET substrate, the coating has a barrier effect on water vapor and oxygen, so that the defect of poor barrier capability of the PET substrate on water and oxygen can be overcome. In addition, the preparation method is simple to operate, low in cost and suitable for large-scale production and application.
In the above step S10, the method for preparing the epoxidized soybean oil acrylate comprises:
s101: providing epoxidized soybean oil, an acrylic acid monomer, a catalyst and a polymerization inhibitor;
s102: mixing the epoxidized soybean oil, an acrylic acid monomer, a catalyst and a polymerization inhibitor for reaction treatment to obtain the epoxidized soybean oil acrylic ester.
In the above step S101, the ratio of the epoxy value of the epoxidized soybean oil to the number of carboxyl groups of the acrylic monomer is 1: (1-1.5), providing epoxy soybean oil and acrylic acid monomer, specifically, firstly measuring the epoxy value of the epoxy soybean oil according to the national standard GB/T1677-2008 < measurement of the epoxy value of the plasticizer >, and then calculating the mass percent content of the epoxy soybean oil and the acrylic acid monomer to be added according to the quantity ratio of the epoxy value of the epoxy soybean oil to the carboxyl of the acrylic acid monomer, so that the conversion rate of the epoxy soybean oil acrylic ester can be ensured within the quantity ratio of the epoxy value of the epoxy soybean oil to the carboxyl of the acrylic acid monomer. Wherein the mass of the catalyst accounts for 0.5-2%, such as 0.5%, 0.7%, 0.9%, 1.1%, 1.3%, 1.5%, 2% of the total mass of the epoxidized soybean oil and the acrylic monomer, and the mass of the polymerization inhibitor accounts for 0.05-0.2%, such as 0.05%, 0.1%, 0.15%, 0.2% of the total mass of the epoxidized soybean oil and the acrylic monomer. Specifically, the polymerization inhibitor is a phenolic polymerization inhibitor, and the phenolic polymerization inhibitor can prevent double bond polymerization and side reaction in product storage, so that the reaction efficiency can be ensured. However, the phenolic polymerization inhibitor is easy to oxidize in the reaction process, and the oxidation reduces the catalytic activity loss of the catalyst to a certain extent, so that the phenolic polymerization inhibitor is controlled within the range of the embodiment of the application, the situation that the phenolic polymerization inhibitor is excessive can be prevented, the phenolic substance is prevented from being oxidized into benzoquinone, the phenomenon that the benzoquinone is overlapped with phenol to present red or deep red is avoided, and the colorless high-transparency epoxidized soybean oil acrylate can be formed.
In an embodiment, the polymerization inhibitor comprises at least one of hydroxyanisole, phenol, hydroquinone. In a specific application, the polymerization inhibitor can be hydroquinone, and also can be hydroxyanisole. These phenolic polymerization inhibitors are easily oxidized to form the corresponding quinone compounds, which combine with the free radicals of the chains to perform polymerization inhibition, so that the peroxidized free radicals are quickly terminated, a sufficient amount of oxygen in the monomers can be ensured, and the polymerization inhibition period can be prolonged.
In an embodiment, the acrylic monomer is a monofunctional acrylic monomer. For example, the acrylic monomer includes at least one of acrylic acid, methacrylic acid, 2-ethacrylic acid, phenylacrylic acid, α -phenylacrylic acid. In a specific application, the acrylic monomer may be acrylic acid, or methacrylic acid. These monofunctional acrylic monomers can prevent crosslinking of the reaction product.
In an embodiment, the catalyst comprises at least one of potassium hydroxide, sodium hydroxide, lithium decanoate, 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, diphenyl phosphorus oxide, triphenylphosphine. For example, the catalyst may be potassium hydroxide, and may also be triphenylphosphine. These catalysts can increase the activation energy of the reaction and can accelerate the reaction process.
In the above step S102, the conditions of the reaction process include: the temperature is 30-80 ℃, such as 30 ℃, 35 ℃, 40 ℃, 45 ℃, 50 ℃, 55 ℃, 60 ℃, 65 ℃, 70 ℃, 75 ℃, 80 ℃ and the time is 5-12 hours, such as 5 hours, 6 hours, 7 hours, 8 hours, 9 hours, 10 hours, 11 hours, 12 hours. The conversion rate of the epoxidized soybean oil and the acrylic acid reactive monomer in the reaction process can be ensured at the temperature and the time of the reaction treatment, so that the epoxidized soybean oil acrylic ester is formed.
In the above step S20, specific components of the clay material are described above, and are not described herein. The dispersion treatment includes: and performing ultrasonic dispersion for 24-48 h under the power of 400-800W. In the examples, the mass volume ratio of clay material to water is 1g: (50-150 mL), adding clay material into water, and performing ultrasonic dispersion for 24-48 h under the power of 400-800W to obtain clay dispersion liquid.
In the above step S30, the conditions of the emulsification process include: the rotation speed is 8000-12000 r/min, such as 8000r/min, 90000r/min, 10000r/min, 11000r/min, 12000r/min, and the time is 3-15 min, such as 3min, 5min, 7min, 9min, 11min, 13min, and 15min. In the rotation speed and time range of the emulsification treatment, the uniform phase coating with the oil-in-water structure can be formed under the combined action of high-speed shearing and emulsification of the epoxy soybean oil acrylic ester and the clay dispersion liquid. In the embodiment, the epoxy soybean oil acrylic ester, clay dispersion liquid and initiator are mixed, and then the mixture is placed under a high-speed shearing emulsifying machine with the rotating speed of 8000-12000 r/min for emulsification treatment for 3-15 min, so as to obtain the coating.
The following description is made with reference to specific embodiments.
Example 1
The embodiment of the application provides a coating and a preparation method thereof.
The coating comprises the following components in percentage by weight:
the preparation method of the coating comprises the following steps:
s11: according to the coating of the embodiment, respectively measuring epoxidized soybean oil, acrylic acid, triphenylphosphine, hydroquinone, dibenzoyl peroxide, saponite, montmorillonite and water according to the proportion; wherein the ratio of the epoxy value of the epoxidized soybean oil to the number of carboxyl groups of the acrylic acid is 1:1.3, the mass of triphenylphosphine is 1% of the total mass of the epoxidized soybean oil and the acrylic acid, and the mass of hydroquinone is 0.1% of the total mass of the epoxidized soybean oil and the acrylic acid;
s12: mixing epoxidized soybean oil, acrylic acid, triphenylphosphine and hydroquinone, and then heating to 80 ℃ for reaction for 10 hours to obtain epoxidized soybean oil acrylic ester;
s13: adding saponite and montmorillonite into water, and performing ultrasonic dispersion for 36 hours under the power of 500W to obtain clay dispersion liquid;
s14: mixing the epoxidized soybean oil acrylic ester, clay dispersion liquid and dibenzoyl peroxide, and performing emulsification treatment for 10min under a high-speed shearing machine with the rotating speed of 10000r/min to obtain the coating.
Example 2
The embodiment of the application provides a coating and a preparation method thereof.
The coating comprises the following components in percentage by weight:
the preparation method of the coating comprises the following steps:
s21: according to the coating of the embodiment, epoxidized soybean oil, alpha-phenylacrylic acid, potassium hydroxide, hydroxyanisole, dibenzoyl peroxide, sepiolite, montmorillonite and water are respectively measured according to the proportion; wherein the ratio of the epoxy value of the epoxidized soybean oil to the number of carboxyl groups of the acrylic acid is 1:1.5, the mass of potassium hydroxide is 2% of the total mass of epoxidized soybean oil and alpha-phenylacrylic acid, and the mass of hydroxyanisole is 0.1% of the total mass of epoxidized soybean oil and acrylic acid;
s22: mixing epoxidized soybean oil, alpha-phenylacrylic acid, potassium hydroxide and hydroxyanisole, and then heating to 70 ℃ for reaction for 12 hours to obtain epoxidized soybean oil acrylic ester;
s23: adding sepiolite and montmorillonite into water, and performing ultrasonic dispersion for 36 hours under the power of 500W to obtain clay dispersion liquid;
s24: mixing the epoxidized soybean oil acrylic ester, clay dispersion liquid and dibenzoyl peroxide, and performing emulsification treatment for 15min under a high-speed shearing machine with the rotating speed of 10000r/min to obtain the coating.
Example 3
The embodiment of the application provides a coating and a preparation method thereof.
The coating comprises the following components in percentage by weight:
the preparation method of the coating comprises the following steps:
s31: according to the coating of the embodiment, respectively measuring epoxidized soybean oil, acrylic acid, triphenylphosphine, hydroquinone, dibenzoyl peroxide, soapstone, kaolin and water according to the proportion; wherein the ratio of the epoxy value of the epoxidized soybean oil to the number of carboxyl groups of the acrylic acid is 1:1.3, the mass of triphenylphosphine is 1% of the total mass of the epoxidized soybean oil and the acrylic acid, and the mass of hydroquinone is 0.1% of the total mass of the epoxidized soybean oil and the acrylic acid;
s32: mixing epoxidized soybean oil, acrylic acid, triphenylphosphine and hydroquinone, and then heating to 80 ℃ for reaction for 10 hours to obtain epoxidized soybean oil acrylic ester;
s33: adding soapstone and kaolin into water, and performing ultrasonic dispersion for 36 hours under the power of 500W to obtain clay dispersion liquid;
s34: mixing the epoxidized soybean oil acrylic ester, clay dispersion liquid and dibenzoyl peroxide, and performing emulsification treatment for 10min under a high-speed shearing machine with the rotating speed of 10000r/min to obtain the coating.
Example 4
The embodiment of the application provides a coating and a preparation method thereof.
The coating comprises the following components in percentage by weight:
the preparation method of the coating comprises the following steps:
s41: according to the coating of the embodiment, respectively measuring epoxidized soybean oil, acrylic acid, triphenylphosphine, hydroquinone, dibenzoyl peroxide, montmorillonite and water according to the proportion; wherein the ratio of the epoxy value of the epoxidized soybean oil to the number of carboxyl groups of the acrylic acid is 1:1.3, the mass of triphenylphosphine is 1% of the total mass of the epoxidized soybean oil and the acrylic acid, and the mass of hydroquinone is 0.1% of the total mass of the epoxidized soybean oil and the acrylic acid;
s42: mixing epoxidized soybean oil, acrylic acid, triphenylphosphine and hydroquinone, and then heating to 80 ℃ for reaction for 10 hours to obtain epoxidized soybean oil acrylic ester;
s43: adding montmorillonite into water, and performing ultrasonic dispersion for 36 hours under the power of 500W to obtain clay dispersion liquid;
s44: mixing the epoxidized soybean oil acrylic ester, clay dispersion liquid and dibenzoyl peroxide, and performing emulsification treatment for 10min under a high-speed shearing machine with the rotating speed of 10000r/min to obtain the coating.
Example 5
The embodiment of the application provides a coating and a preparation method thereof.
The coating comprises the following components in percentage by weight:
the preparation method of the coating comprises the following steps:
s51: according to the coating of the embodiment, respectively measuring epoxidized soybean oil, acrylic acid, triphenylphosphine, hydroquinone, dibenzoyl peroxide, soapstone and water according to the proportion; wherein the ratio of the epoxy value of the epoxidized soybean oil to the number of carboxyl groups of the acrylic acid is 1:1.3, the mass of triphenylphosphine is 1% of the total mass of the epoxidized soybean oil and the acrylic acid, and the mass of hydroquinone is 0.1% of the total mass of the epoxidized soybean oil and the acrylic acid;
s52: mixing epoxidized soybean oil, acrylic acid, triphenylphosphine and hydroquinone, and then heating to 80 ℃ for reaction for 10 hours to obtain epoxidized soybean oil acrylic ester;
s53: adding soapstone into water, and performing ultrasonic dispersion for 36 hours under the power of 500W to obtain clay dispersion liquid;
s54: mixing the epoxidized soybean oil acrylic ester, clay dispersion liquid and dibenzoyl peroxide, and performing emulsification treatment for 10min under a high-speed shearing machine with the rotating speed of 10000r/min to obtain the coating.
Correlation performance test analysis:
FIG. 2 is a TEM image of montmorillonite before and after peeling provided in example 4, FIG. 3 is a TEM image of montmorillonite before and after peeling provided in example 5, FIG. 4 is a TEM image of montmorillonite before and after peeling provided in example 1 of the present applicationThe infrared image of the reaction product of Epoxidized Soybean Oil (ESO) with epoxidized soybean oil and Acrylic Acid (AA) is compared with the infrared image of the reaction product of epoxidized soybean oil and epoxidized soybean oil acrylate, and the infrared image of the reaction product is 1632cm -1 、1615cm -1 、1404cm -1 And 812cm -1 Peak position appeared at 1632cm -1 And 1615cm -1 A C=C stretching vibration peak, and C-H bending vibration and swinging vibration of 1404cm -1 And 812cm -1 And (3) upper part. The epoxy group absorption peak in ESO disappeared, and the c=c absorption peak appeared in AESO, =c-H absorption peak and hydroxyl group integral area increased, indicating that the addition reaction of epoxidized soybean oil and acrylic acid produced epoxidized soybean oil Acrylate (AESO).
The PET substrates and the coatings provided in examples 1 to 3 were each tested for Oxygen Transmission Rate (OTR) and Water Vapor Transmission Rate (WVTR) after forming a coating on the surface of the PET substrate. Wherein the thickness of the coating is 3 μm. The test results are shown in table 1 below:
TABLE 1
As can be seen from table 1, the Oxygen Transmission Rate (OTR) of the coatings provided in examples 1 to 5 after forming the coating on the surface of the PET substrate is below 10%, the Water Vapor Transmission Rate (WVTR) is below 4%, and the Oxygen Transmission Rate (OTR) of the coating relative to the PET substrate is significantly reduced, and the Water Vapor Transmission Rate (WVTR) is also significantly reduced, which indicates that the clay material included in the coating provided in the embodiment of the application can increase the permeability resistance of the gas material, thereby improving the gas diffusion resistance of the coating, having a barrier effect on oxygen, and the initiator included can initiate the polymerization of the reactive group of the epoxidized soybean oil acrylate, promoting the formation of the coating into an oil-in-water structure, so that the coating formed on the surface of the PET substrate has good hydrophobicity and a barrier effect on water vapor. Therefore, after the coating provided by the embodiment of the application forms a coating on the surface of the PET substrate, the coating can play a good role in blocking water vapor and oxygen, so that the defect of poor blocking capability of the PET substrate on water oxygen can be overcome.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (7)
1. The coating is characterized by comprising the following components in percentage by weight, based on 100% of the total weight of the coating:
the initiator is dibenzoyl peroxide or lauroyl peroxide;
the clay material consists of one-dimensional clay material and two-dimensional clay material, and the mass ratio of the one-dimensional clay material to the two-dimensional clay material is (0.1-0.3): 1, a step of; the one-dimensional clay material fills gaps of the two-dimensional clay material;
the one-dimensional clay material is sepiolite or saponite;
the two-dimensional clay material is montmorillonite or kaolin.
2. The coating of claim 1, comprising the following components in weight percent:
3. a method of preparing a coating as claimed in claim 1 or 2, comprising the steps of:
providing the epoxidized soybean oil acrylate, the initiator, the clay material and the water;
adding the clay material into the water for dispersion treatment to obtain clay dispersion liquid;
mixing the epoxidized soybean oil acrylate, the clay dispersion liquid and the initiator, and performing emulsification treatment to obtain the coating;
the initiator is dibenzoyl peroxide or lauroyl peroxide;
the clay material consists of one-dimensional clay material and two-dimensional clay material, and the mass ratio of the one-dimensional clay material to the two-dimensional clay material is (0.1-0.3): 1, a step of; the one-dimensional clay material fills gaps of the two-dimensional clay material;
the one-dimensional clay material is sepiolite or saponite;
the two-dimensional clay material is montmorillonite or kaolin.
4. The method of claim 3, wherein the method of preparing the epoxidized soybean oil acrylate comprises:
providing epoxidized soybean oil, an acrylic acid monomer, a catalyst and a polymerization inhibitor;
and mixing the epoxidized soybean oil, the acrylic acid monomer, the catalyst and the polymerization inhibitor for reaction treatment to obtain the epoxidized soybean oil acrylic ester.
5. The method of claim 4, wherein the ratio of the epoxy value of the epoxidized soybean oil to the number of carboxyl groups of the acrylic monomer is 1: (1-1.5); or alternatively
The reaction treatment conditions include: the temperature is 30-80 ℃ and the time is 5-12 h.
6. The method of claim 4, wherein the acrylic monomer comprises at least one of acrylic acid, methacrylic acid, 2-ethacrylic acid, phenylacrylic acid, α -phenylacrylic acid; and/or
The catalyst comprises at least one of potassium hydroxide, sodium hydroxide, lithium decanoate, 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, diphenyl phosphorus oxide and triphenylphosphine; and/or
The polymerization inhibitor comprises at least one of hydroxyanisole, phenol and hydroquinone.
7. The method according to any one of claims 4 to 6, wherein the dispersion treatment comprises: under the power of 400-800W, the ultrasonic dispersion is carried out for 24-48 h; and/or
The conditions of the emulsification treatment include: the rotating speed is 8000-12000 r/min, and the time is 3-15 min.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000016586A (en) * | 1996-06-12 | 2000-03-25 | 크레머 브이. | Vapor blocking coating for polymeric article |
| CA2509087A1 (en) * | 2003-01-08 | 2004-07-29 | Texas Tech University | Castor oil/epoxidized soybean oil based elastomeric compositions |
| CN102651456A (en) * | 2012-03-27 | 2012-08-29 | 京东方科技集团股份有限公司 | Thin-film packaging component, photoelectronic device and packaging method of photoelectronic device |
| WO2016153818A1 (en) * | 2015-03-20 | 2016-09-29 | Lubrizol Advanced Materials, Inc. | Blends of water dispersible polymer with dispersions of polymers from epoxidized triglycerides |
| CN106280937A (en) * | 2016-08-30 | 2017-01-04 | 乐凯特科技铜陵有限公司 | A kind of waterproof anti-corrosion three-proofing coating used for printed circuit board and preparation method thereof |
| WO2018169490A1 (en) * | 2017-03-14 | 2018-09-20 | Agency For Science, Technology And Research | Clay-polyacrylate composites suspension via in situ polymerization |
| CN108603050A (en) * | 2016-02-03 | 2018-09-28 | 巴斯夫欧洲公司 | The mono-component aqueous coating composition containing polyurethane and phyllosilicate for oxygen obstruction coating |
| CN109504147A (en) * | 2018-10-16 | 2019-03-22 | 岳西县恒意机械有限公司 | A kind of antirusting paint coated in mining machinery surface |
| CN109535941A (en) * | 2018-10-23 | 2019-03-29 | 东莞市派乐玛新材料技术开发有限公司 | High barrier UV solidifies organic/inorganic composite and the preparation method and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1642914B1 (en) * | 2002-11-14 | 2007-11-14 | Rohm and Haas Company | Curable clay composition : composition, processes, and uses thereof |
| US20110040016A1 (en) * | 2008-04-21 | 2011-02-17 | Yakulis Jr George | Curable compositions that form a high modulus polyurea |
| US20230147724A1 (en) * | 2020-03-17 | 2023-05-11 | Byk-Chemie Gmbh | Rheology control agent |
-
2022
- 2022-09-30 CN CN202211215406.2A patent/CN115449297B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000016586A (en) * | 1996-06-12 | 2000-03-25 | 크레머 브이. | Vapor blocking coating for polymeric article |
| CA2509087A1 (en) * | 2003-01-08 | 2004-07-29 | Texas Tech University | Castor oil/epoxidized soybean oil based elastomeric compositions |
| CN102651456A (en) * | 2012-03-27 | 2012-08-29 | 京东方科技集团股份有限公司 | Thin-film packaging component, photoelectronic device and packaging method of photoelectronic device |
| WO2016153818A1 (en) * | 2015-03-20 | 2016-09-29 | Lubrizol Advanced Materials, Inc. | Blends of water dispersible polymer with dispersions of polymers from epoxidized triglycerides |
| CN108603050A (en) * | 2016-02-03 | 2018-09-28 | 巴斯夫欧洲公司 | The mono-component aqueous coating composition containing polyurethane and phyllosilicate for oxygen obstruction coating |
| CN106280937A (en) * | 2016-08-30 | 2017-01-04 | 乐凯特科技铜陵有限公司 | A kind of waterproof anti-corrosion three-proofing coating used for printed circuit board and preparation method thereof |
| WO2018169490A1 (en) * | 2017-03-14 | 2018-09-20 | Agency For Science, Technology And Research | Clay-polyacrylate composites suspension via in situ polymerization |
| CN109504147A (en) * | 2018-10-16 | 2019-03-22 | 岳西县恒意机械有限公司 | A kind of antirusting paint coated in mining machinery surface |
| CN109535941A (en) * | 2018-10-23 | 2019-03-29 | 东莞市派乐玛新材料技术开发有限公司 | High barrier UV solidifies organic/inorganic composite and the preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| Crumpled highly filled poly(styrene-co-butyl acrylate)/clay hybrid latexes;Zengeni, E;《COMPOSITES SCIENCE AND TECHNOLOGY》;第84卷;31-38 * |
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