CN115477886A - Water-based folding-resistant high-brightness composite coating and preparation method thereof - Google Patents
Water-based folding-resistant high-brightness composite coating and preparation method thereof Download PDFInfo
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- CN115477886A CN115477886A CN202210927786.6A CN202210927786A CN115477886A CN 115477886 A CN115477886 A CN 115477886A CN 202210927786 A CN202210927786 A CN 202210927786A CN 115477886 A CN115477886 A CN 115477886A
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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
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/064—Polymers containing more than one epoxy group per molecule
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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
- C09D5/08—Anti-corrosive paints
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- Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
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- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to the field of IPC (International Industrial Standard) classified C09D133/00, in particular to a water-based folding-resistant high-brightness composite coating and a preparation method thereof. The water-based folding-resistant highlight composite coating comprises the following raw materials in parts by mass: 80-120 parts of epoxy modified composite emulsion, 10-50 parts of organic acid resin, 50-300 parts of diluent and 4-15 parts of functional additive. The coating prepared by the application has good folding resistance, corrosion resistance and higher laser brightness, effectively improves the attaching force of the coating and a PET corona base film, is suitable for popularization in the field of packaging materials, and has wide development prospect.
Description
Technical Field
The invention relates to the field of IPC (International Industrial Standard) classified C09D133/00, in particular to a water-based folding-resistant high-brightness composite coating and a preparation method thereof.
Background
In recent years, water-based acrylic emulsions have attracted more and more attention because of their excellent weatherability, corrosion resistance and additive film-forming effect, and have been widely used and studied in the field of water-based paints.
In recent years, with the development of water-based acrylic resin coatings, the applications of the water-based acrylic resin coatings in various fields are more and more extensive, for example, the fields of architectural protective coatings, metal protective paints, hydrophobic coatings and the like are widely applied. The prior art (CN 201811355735.0) provides a coating of a water-based acrylic resin, which mainly adopts a fluorine-containing acrylic monomer as a raw material, and has good waterproof performance, but due to the addition of fluorine element, the smooth characteristic of the coating is easy to obviously reduce the performances of the coating, such as the adhesion, folding resistance and the like, and the brightness is obviously reduced.
Therefore, there is a need for a composite acrylic coating having excellent adhesion and folding resistance and also having good brightness.
Disclosure of Invention
In order to solve the problems, the invention provides a water-based folding-resistant high-brightness composite coating in a first aspect, which comprises the following raw materials in parts by mass: 80-120 parts of epoxy modified composite emulsion, 10-50 parts of organic acid resin, 50-300 parts of diluent and 4-15 parts of functional additive.
As a preferable scheme, the raw materials of the epoxy modified composite emulsion comprise the following components in parts by mass: 150-300 parts of combined monomer, 0.1-2 parts of initiator, 0-5 parts of anionic organic salt, 1-5 parts of nonionic surfactant, 1-20 parts of modified resin, 1-5 parts of salt forming agent and 200-400 parts of solvent.
In a preferred embodiment, the organic acid resin is at least one of a high-toughness aqueous acrylic resin and a high-toughness aqueous polyurethane.
In a preferred embodiment, the organic acid resin is a high-toughness aqueous acrylic resin.
Preferably, the organic acid resin has a viscosity of 50 to 100mPa.s,25 ℃.
As a preferable mode, the viscosity of the organic acid resin is 75mpa.s,25 ℃.
In this application, through the waterborne acrylic resin of the high toughness of effectual selection, the effectual surface folding endurance who improves the coating to further, during control its viscosity, can effectual corrosion resistance and the surperficial brightness of promotion coating. The applicant speculates that: when the viscosity of the adopted high-toughness water-based acrylic resin is 75mPa.s and 25 ℃, the proper viscosity can form an easily flowing resin mass in a coating system, so that a uniform toughness system is formed in the whole system, when the high-toughness water-based acrylic resin is cured to form a film, a monomer high-toughness resin film layer can be formed in a surface film layer due to good uniformity, and the existence of the film layer not only can effectively enhance the folding resistance of the film layer through the toughness, but also can form a good reflection effect, so that the high-toughness water-based acrylic resin has good brightness.
In a preferred embodiment, the diluent is at least one of deionized water, organic alcohol, organic ketone, and short-chain ester.
As a preferred embodiment, the diluent is deionized water.
As a preferable scheme, the functional assistant is at least one of a leveling agent, a wetting agent, a lubricant, an anti-dripping agent, an anti-ultraviolet absorbent, a flame retardant, an anti-freezing agent, a waterproof agent and a preservative.
As a preferable scheme, the functional additives are an antifoaming agent, a leveling agent and an antiseptic agent.
As a preferable scheme, the functional auxiliary agent is an antifoaming agent, and the mass ratio of the flatting agent to the preservative is (4-6).
As a preferred embodiment, the preservative is methylisothiazolinone.
In a preferred embodiment, the combination monomer is a mixture of an acrylic hard monomer, an acrylic soft monomer and an acid ester functional monomer.
In a preferred embodiment, the acrylic hard monomer is at least one of methyl methacrylate, dicyclopentyl acrylate and styrene-acrylonitrile.
As a preferable scheme, the acrylic hard monomer is methyl methacrylate and dicyclopentyl acrylate, and the mass ratio is 150.
In a preferred embodiment, the acrylic soft monomer is at least one of butyl acrylate, ethyl acrylate and lauryl methacrylate.
As a preferable scheme, the acrylic soft monomer is butyl acrylate and ethyl acrylate, and the mass ratio is 7.
In the application, by adopting the epoxy modified composite emulsion, various performances of the coating are effectively improved. The applicant speculates that: according to the preparation method, the monomer with the alkane-containing side chain is introduced into the system through the addition of the epoxy modified composite emulsion, and meanwhile, the double bond density can be effectively enhanced by modifying the double bond-containing monomer under appropriate reaction conditions.
In a preferred embodiment, the acid ester functional monomer is at least one of methacrylic acid, acrylic acid, beta-hydroxyethyl acrylate, beta-hydroxypropyl acrylate, and glycidyl methacrylate.
In a preferred embodiment, the acid ester functional monomer is acrylic acid.
In a preferred embodiment, the anionic organic salt is at least one of sulfonate and sulfate.
As a preferable scheme, the mass ratio of the epoxy modified composite emulsion to the organic acid resin is 9-11: 1 to 5.
As a preferable scheme, the mass ratio of the epoxy modified composite emulsion to the organic acid resin is 10:3.
furthermore, this application can effectively improve the ability of enduring folding and endure to and chemical resistance permeability through the mass ratio of injecing epoxy modified composite emulsion and organic acid resin. The applicant speculates that: in the application, when the mass ratio of the epoxy modified composite emulsion to the organic acid resin is 10:3, the side chain contains alkane monomer and double bond monomer can effectively form connection winding effect with the long molecular chain of the organic resin, and the half length of the branched chain is extended as much as possible, so that the carbon chain of the whole system forms multi-helix and multi-complexity entanglement, and the movement and migration speed of electrons and active groups is limited.
As a preferred scheme, the preparation method of the epoxy modified composite emulsion comprises the following steps: (1) All monomers and other raw materials are mixed and stirred for reaction for 3 to 4 hours at the temperature of between 55 and 75 ℃; (2) And then adding modified resin, continuously reacting for 4-5 hours, and finally neutralizing and emulsifying to obtain the modified epoxy resin.
The second aspect of the invention provides a preparation method of the water-based folding-resistant high-brightness composite coating, which comprises the following steps: weighing raw materials according to the using amount of each component; (2) Adding the diluent into a reaction kettle, and stirring and reacting for 4-12 hours; (3) Adding the epoxy modified composite emulsion and the organic acid resin into a reaction kettle, and uniformly stirring; (4) Adding the rest raw materials, stirring, and filtering.
Has the advantages that:
1. the composite coating prepared in the application has good adhesiveness and folding resistance, and can form good adhesion on the surface of a PET corona base film, so that the protective performance of various packaging materials is realized, the service life of the packaging materials is greatly prolonged, and the composite coating has good applicability.
2. The composite coating prepared in the application effectively improves the surface folding endurance of the coating by effectively selecting the high-toughness water-based acrylic resin, and further can effectively improve the corrosion resistance and the surface brightness of the coating when the viscosity of the composite coating is controlled.
3. According to the composite coating prepared in the application, various performances of the coating are effectively improved by adopting the epoxy modified composite emulsion in the application. The coating has good additional adhesiveness and folding resistance, can meet the brightness requirement of a packaging material, and has wide applicability.
Detailed Description
Example 1
The first aspect of embodiment 1 provides a water-based folding-resistant high-brightness composite coating, which comprises the following raw materials in parts by mass:
in this example, the aqueous acrylic acid is a product of the type Neocryl XK-12, available from Dismann, netherlands.
In this example, the aqueous defoamer was the TEGO Airex 902w defoamer product sold by Digao.
In this example, the leveling agent was a TEGO Glide 100 leveling agent product sold by Digao.
The epoxy modified composite emulsion comprises the following raw materials in parts by mass:
| starting materials | Parts by mass |
| Methyl methacrylate (hard monomer) | 150 |
| BA (Soft monomer) | 70 |
| EA (Soft monomer) | 10 |
| Dicyclopentenyl acrylate (hard monomer) | 1 |
| Acrylic acid (acid ester functional monomer) | 0.5 |
| AEO (nonionic surfactant) | 4.5 |
| Butenoic acid modified epoxy resin (modified resin) | 13 |
| Potassium persulfate (initiator) | 1 |
| Acetone (solvent) | 75 |
| Triethanolamine (salt forming agent) | 2 |
| Water (solvent) | 300 |
The preparation method of the epoxy modified composite emulsion comprises the following steps: (1) All monomers and other raw materials are mixed and stirred to react for 3.5 hours at the temperature of 60 ℃; (2) And then adding modified resin, continuing to react for 4.5 hours, and finally neutralizing and emulsifying to obtain the modified epoxy resin.
In a second aspect of this embodiment, a method for preparing the above water-based folding-resistant high-brightness composite coating is provided, which includes the following steps: weighing raw materials according to the using amount of each component; (2) adding the diluent into the reaction kettle, and stirring for reaction for 8 hours; (3) Adding the epoxy modified composite emulsion and the organic acid resin into a reaction kettle, and uniformly stirring; (4) Adding the rest raw materials, stirring, and filtering.
Example 2
The embodiment of this embodiment is the same as embodiment 1, except that: the components are as follows:
| starting materials | Mass portion of |
| Epoxy modified composite emulsion | 100 |
| Aqueous acrylic acid | 30 |
| Deionized water | 168.8 |
| Aqueous defoaming agent | 0.4 |
| Leveling agent | 0.6 |
| Methylisothiazolinone | 0.2 |
Example 3
The embodiment of this comparative example is the same as example 1 except that: the components are as follows:
evaluation of Performance
The coatings from each of the examples were subjected to the following table of performance tests and the results are reported in table 1.
TABLE 1
Through the embodiments 1-3 and the table 1, the water-based folding-resistant high-brightness composite coating provided by the invention has good folding resistance, corrosion resistance and higher laser brightness, effectively improves the adhesion force of the coating and a PET corona base film, is suitable for popularization in the field of packaging materials, and has a wide development prospect.
Claims (10)
1. The water-based folding-resistant high-brightness composite coating is characterized in that: the raw materials comprise the following components in parts by mass: 80-120 parts of epoxy modified composite emulsion, 10-50 parts of organic acid resin, 50-300 parts of diluent and 4-15 parts of functional additive.
2. The water-based folding-resistant high-brightness composite coating material according to claim 1, characterized in that: the epoxy modified composite emulsion comprises the following raw materials in parts by mass: 150 to 300 parts of combined monomer, 0.1 to 2 parts of initiator, 0 to 5 parts of anionic organic salt, 1 to 5 parts of nonionic surfactant, 1 to 20 parts of modified resin, 1 to 5 parts of salt forming agent and 200 to 400 parts of solvent.
3. The water-based folding-resistant high-brightness composite coating according to any one of claims 1-2, characterized in that: the organic acid resin is at least one of high-toughness water-based acrylic resin and high-toughness water-based polyurethane.
4. The water-based folding-resistant high-brightness composite coating according to any one of claims 1 to 3, characterized in that: the diluent is at least one of deionized water, organic alcohol, organic ketone and short-chain ester.
5. The water-based folding-resistant high-brightness composite coating according to any one of claims 1 to 4, characterized in that: the functional assistant is at least one of a leveling agent, a wetting agent, a lubricating agent, an anti-dripping agent, an anti-ultraviolet absorbent, a flame retardant, an antifreezing agent, a waterproof agent and a preservative.
6. The water-based folding-resistant high-brightness composite coating according to any one of claims 2 to 5, characterized in that: the combined monomer is a mixture of acrylic hard monomer, acrylic soft monomer and acid ester functional monomer.
7. The water-based folding-resistant highlight composite coating according to claim 6, characterized in that: the acid ester functional monomer is at least one of methacrylic acid, acrylic acid-beta-hydroxyethyl ester, acrylic acid-beta-hydroxypropyl ester and glycidyl methacrylate.
8. The water-based folding-resistant high-brightness composite coating according to any one of claims 2 to 7, characterized in that: the anionic organic salt is at least one of sulfonate and sulfate.
9. The water-based folding-resistant high-brightness composite coating according to any one of claims 1 to 8, characterized in that: the mass ratio of the epoxy modified composite emulsion to the organic acid resin is (9-11): 1 to 5.
10. A method for preparing the water-based folding-resistant high-brightness composite coating according to any one of claims 1 to 9, which is characterized in that: the method comprises the following steps: weighing raw materials according to the using amount of each component; (2) Adding the diluent into a reaction kettle, and stirring and reacting for 4-12 hours; (3) Adding the epoxy modified composite emulsion and the organic acid resin into a reaction kettle, and uniformly stirring; (4) Adding the rest raw materials, stirring, and filtering.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210927786.6A CN115477886B (en) | 2022-08-03 | 2022-08-03 | Water-based folding-resistant high-brightness composite coating and preparation method thereof |
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| CN202210927786.6A CN115477886B (en) | 2022-08-03 | 2022-08-03 | Water-based folding-resistant high-brightness composite coating and preparation method thereof |
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| CN115477886A true CN115477886A (en) | 2022-12-16 |
| CN115477886B CN115477886B (en) | 2023-05-23 |
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Citations (6)
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| WO2008127416A2 (en) * | 2006-11-08 | 2008-10-23 | Massachusetts Institute Of Technology | Polymeric coatings that inactivate viruses and bacteria |
| CN108329813A (en) * | 2017-12-29 | 2018-07-27 | 上海维凯光电新材料有限公司 | A kind of bend resistance aqueous transfer coating and preparation method thereof |
| CN109294377A (en) * | 2018-09-26 | 2019-02-01 | 上海乘鹰新材料有限公司 | A kind of laser transfer coatings that flexibility is excellent |
| CN112662247A (en) * | 2020-12-31 | 2021-04-16 | 常州市天盾涂料有限公司 | High-toughness water-based acrylic coating and preparation method thereof |
| JP2021120337A (en) * | 2019-10-09 | 2021-08-19 | Dic株式会社 | Abrasion-resistant agent, coating agent, laminate, method for producing laminate, and method for coating substrate |
| CN114736580A (en) * | 2022-04-13 | 2022-07-12 | 滁州金桥德克新材料有限公司无锡分公司 | Water-based release adhesive and preparation method and application thereof |
-
2022
- 2022-08-03 CN CN202210927786.6A patent/CN115477886B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008127416A2 (en) * | 2006-11-08 | 2008-10-23 | Massachusetts Institute Of Technology | Polymeric coatings that inactivate viruses and bacteria |
| CN108329813A (en) * | 2017-12-29 | 2018-07-27 | 上海维凯光电新材料有限公司 | A kind of bend resistance aqueous transfer coating and preparation method thereof |
| CN109294377A (en) * | 2018-09-26 | 2019-02-01 | 上海乘鹰新材料有限公司 | A kind of laser transfer coatings that flexibility is excellent |
| JP2021120337A (en) * | 2019-10-09 | 2021-08-19 | Dic株式会社 | Abrasion-resistant agent, coating agent, laminate, method for producing laminate, and method for coating substrate |
| CN112662247A (en) * | 2020-12-31 | 2021-04-16 | 常州市天盾涂料有限公司 | High-toughness water-based acrylic coating and preparation method thereof |
| CN114736580A (en) * | 2022-04-13 | 2022-07-12 | 滁州金桥德克新材料有限公司无锡分公司 | Water-based release adhesive and preparation method and application thereof |
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