CN110922851A - Sweat-resistant water-soluble acrylic resin coating and preparation method thereof - Google Patents
Sweat-resistant water-soluble acrylic resin coating and preparation method thereof Download PDFInfo
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- 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
- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
- C09D161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09D161/32—Modified amine-aldehyde condensates
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- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/062—Copolymers with monomers not covered by C09D133/06
- C09D133/068—Copolymers with monomers not covered by C09D133/06 containing glycidyl groups
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- 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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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention relates to a sweat-resistant water-soluble acrylic resin coating and a preparation method thereof, wherein the coating comprises the following components: fluorine-containing acrylic resin, butylated amino resin, a dispersing agent, a defoaming agent, a leveling agent and water, wherein the fluorine-containing acrylic resin comprises the following components: fluorine-containing acrylic monomer, acrylic acid, methyl methacrylate, isooctyl methacrylate, tertiary carbonic acid glycidyl ether, glycidyl methacrylate, octyl decanoate glycidyl ester, silane coupling agent and the like. The coating has the advantages of sweat resistance and wear resistance, indirectly prolonged service life of products, simple preparation method and low production cost, and can be widely applied to the field of electronic products.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a sweat-resistant water-soluble acrylic coating resin and a preparation method thereof.
Background
With the development of science and technology and the continuous improvement of the living standard of people, the living of people is more and more intelligent and mobile internet is realized, so that the utilization rate and the dependence of people on electronic products (such as mobile phones, computers, IPDs, remote controllers and the like) are higher and higher, and meanwhile, the quality of the electronic products is required to be higher and higher. The existing electronic product is frequently contacted with sweat due to human hands, the surface of the existing electronic product can be corroded by the sweat and is easy to wear, and the surface coating is damaged. Electronic product manufacturers develop exquisite quality and beautiful appearance while internally configuring software and improving and optimizing hardware, and the requirements of the most common paint spraying process for appearance design treatment on the paint are higher and higher, so that the paint with hand sweat resistance and high wear resistance is necessary.
Chinese patent CN201810336134.9 discloses a coating for digital products, the components of the coating formula are polyurethane acrylate oligomer, 2-hydroxy-3-phenoxypropyl acrylate, fluorinated additive, matting powder, propylene glycol methyl ether, thermal radiation nano mineral, diluent and photoinitiator, the prepared coating has good wear resistance, but the coating has low sweat resistance, is applied to the field of electronic products, is easy to lose gloss or cause paint film shedding in the using process, and seriously affects the beauty and use of the electronic products.
Disclosure of Invention
The invention aims to provide a sweat-resistant water-soluble acrylic resin coating and a preparation method thereof, which have the characteristics of sweat resistance and high wear resistance, are simple in preparation method and low in production cost, and can be widely applied to the field of electronic products.
The technical scheme adopted by the invention for solving the problems is as follows: the sweat-resistant water-soluble acrylic resin coating comprises the following components in parts by weight:
20-25 parts of fluorine-containing acrylic resin
20-25 parts of butyl etherified amino resin
6-10 parts of dispersant
0.1 to 0.5 portion of defoaming agent
0.1-0.5 part of flatting agent
40-50 parts of water.
Preferably, the fluorine-containing acrylic resin is prepared from the following materials:
5-10 parts of fluorine-containing acrylic monomer
1-3 parts of acrylic acid
10-15 parts of methyl methacrylate
5-10 parts of isooctyl methacrylate
5-10 parts of tertiary carboxylic acid glycidyl ester
5-10 parts of glycidyl methacrylate
5-10 parts of neodecanoic acid glycidyl ester
1-5 parts of silane coupling agent
0.5 to 1.5 portions of initiator
40-50 parts of a solvent.
Preferably, the dispersing agent is a mixed solution of n-butyl alcohol, propylene glycol butyl ether and isopropanol, and the volume ratio of the n-butyl alcohol to the propylene glycol butyl ether to the isopropanol is as follows: 4-6: 1-2.
Preferably, the defoaming agent is a silicon defoaming agent, and the leveling agent is an organic silicon leveling agent.
Preferably, the fluorine-containing acrylic monomer is one of 3-fluoroethyl methacrylate, 4-fluorodecyl methacrylate, 6-fluorobutyl acrylate and 12-fluoroheptyl methacrylate.
Preferably, the initiator is one of azobisisobutyronitrile, azobisisoheptonitrile, benzoyl peroxide or dicumyl peroxide.
Preferably, the solvent is one of toluene, xylene, ethyl acetate, butyl acetate, butanol, ethylene glycol butyl ether, cyclohexanone and butanone.
The invention also aims to provide a preparation method of the sweat-resistant water-soluble acrylic resin coating, which comprises the following specific steps:
(1) preparation of fluorine-containing acrylic resin: under the protection of nitrogen, mixing a fluorine-containing acrylic acid monomer, acrylic acid, methyl methacrylate, isooctyl methacrylate, glycidyl versatate, glycidyl methacrylate, glycidyl neodecanoate and an initiator according to a proportion at the temperature of 95-105 ℃ of a reactor to obtain a mixed solution, then dropwise adding the mixed solution into a solvent for 2-3 hours, keeping the temperature for continuously reacting for 6-8 hours after the dropwise adding of the mixed solution is finished, then cooling to 65-75 ℃, adding a silane coupling agent for continuously reacting at a constant temperature for 3-5 hours, cooling to 10-30 ℃ after the reaction is finished, and discharging to obtain fluorine-containing acrylic resin;
(2) weighing the components of the coating according to the proportion for later use;
(3) adding a dispersing agent and a half amount of water into the fluorine-containing acrylic resin, stirring, and stirring at the speed of 1000-1200 r/min for 10-15 min;
(4) adding the rest water into the butylated amino resin, stirring at the speed of 1000-1200 r/min for 10-15 min;
(5) and (4) mixing the two stirring materials obtained in the step (3) and the step (4), adding a defoaming agent and a leveling agent, and uniformly stirring to obtain the coating.
Compared with the prior art, the invention has the advantages that:
(1) the fluorine-containing acrylic resin has excellent weather resistance and dirt resistance, and simultaneously has good solubility in a solvent and good compatibility with other resins, wherein three types of glycidyl versatate, glycidyl methacrylate and glycidyl neodecanoate are mixed for use, so that the salt mist resistance and the corrosion resistance of a system are improved; the silane coupling agent is adopted to increase the adhesive force and the hydrophobicity; the fluorine-containing acrylic monomer can improve hydrophobicity and weather resistance.
(2) Compared with the matching use of epoxy resin and butylated amino resin, the invention adopts the combination of the fluorine-containing acrylic resin and the butylated amino resin as a base material, has good compatibility of the fluorine-containing acrylic resin and the butylated amino resin, can form a compact film layer, improves the wear resistance and corrosion resistance of the coating, has simple production process and low production cost, can improve the sweat resistance and impact friction resistance of the appearance of an electronic product to a greater extent, indirectly prolongs the service life of the product, and keeps the appearance of the product as new.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example 1
The sweat-resistant water-soluble acrylic resin coating comprises the following components in parts by weight:
fluorine-containing acrylic resin 21 parts
Butyl etherified amino resin 25 parts
4 parts of n-butanol
Propylene glycol butyl ether 2 parts
2 portions of isopropanol
Silicon defoamer BYK 0520.5 parts
Organic silicon flatting agent BYK 3310.5 parts
And 45 parts of water.
Wherein the fluorine-containing acrylic resin is prepared from the following materials:
5 parts of 3-fluoroethyl methacrylate
Acrylic acid 3 parts
Methyl methacrylate 10 parts
6 parts of isooctyl methacrylate
7 parts of tertiary carbonic acid glycidyl ester
7 parts of glycidyl methacrylate
7 parts of neodecanoic acid glycidyl ester
KH 5504 parts of silane coupling agent
Benzoyl peroxide 1 part
50 parts of butanone.
A preparation method of sweat-resistant water-soluble acrylic resin paint comprises the following steps:
(1) preparation of fluorine-containing acrylic resin: under the protection of nitrogen, the temperature of a reactor is 95 ℃, fluorine-containing acrylic acid monomer, acrylic acid, methyl methacrylate, isooctyl methacrylate, glycidyl versatate, glycidyl methacrylate, glycidyl neodecanoate and benzoyl peroxide are mixed according to a proportion to obtain a mixed solution, then the mixed solution is dripped into butanone for 2 hours, the mixed solution is kept warm and continuously reacts for 8 hours after the dripping is finished, then the temperature is reduced to 65 ℃, silane coupling agent is added to continuously react for 5 hours at constant temperature, the temperature is reduced to 20 ℃ after the reaction is finished, and the fluorine-containing acrylic resin is obtained after discharging.
(2) Weighing the components of the coating according to the proportion for later use.
(3) Adding a mixed solution of n-butyl alcohol, propylene glycol butyl ether and isopropanol and half of water into the fluorine-containing acrylic resin, stirring, and stirring at the speed of 1200r/min for 10 min.
(4) Adding the rest water into the butylated amino resin, stirring at the speed of 1200r/min for 10 min.
(5) And (4) mixing the two stirred materials obtained in the step (3) and the step (4), adding a defoaming agent BYK052 and a flatting agent BYK331 into the mixture, and uniformly stirring to obtain the coating.
Example 2
The sweat-resistant water-soluble acrylic resin coating comprises the following components in parts by weight:
fluorine-containing acrylic resin 25 parts
Butylated amino resin 23 parts
6 parts of n-butanol
Propylene glycol butyl ether 2 parts
2 portions of isopropanol
Silicon defoamer BYK 0520.2 parts
Organic silicon flatting agent BYK 3310.3 parts
And 41.5 parts of water.
Wherein, the fluorine-containing acrylic resin is prepared from the following materials:
8 parts of methacrylic acid-4-fluoro decyl ester
Acrylic acid 2 parts
15 parts of methyl methacrylate
5 parts of isooctyl methacrylate
7 parts of tertiary carbonic acid glycidyl ester
8 parts of glycidyl methacrylate
7 parts of neodecanoic acid glycidyl ester
KH 5502 parts of silane coupling agent
Azobisisobutyronitrile 1 part
And 45 parts of ethylene glycol butyl ether.
A preparation method of sweat-resistant water-soluble acrylic resin paint comprises the following steps:
(1) preparation of fluorine-containing acrylic resin: under the condition of nitrogen protection, the temperature of a reactor is 105 ℃, fluorine-containing acrylic acid monomer, acrylic acid, methyl methacrylate, isooctyl methacrylate, glycidyl versatate, glycidyl methacrylate, glycidyl neodecanoate and azobisisobutyronitrile are mixed according to a proportion to obtain a mixed solution, then the mixed solution is dropwise added into ethylene glycol butyl ether, the dropwise adding time is 3 hours, the mixed solution is kept warm and continuously reacts for 6 hours after being dropwise added, then the temperature is reduced to 75 ℃, a silane coupling agent is added to continuously react for 3 hours at a constant temperature, the temperature is reduced to 30 ℃ after the reaction is finished, and the fluorine-containing acrylic resin is obtained after the reaction is finished and the discharging is carried out.
(2) Weighing the components of the coating according to the proportion for later use.
(3) Adding a mixed solution of n-butyl alcohol, propylene glycol butyl ether and isopropanol and half of water into the fluorine-containing acrylic resin, stirring, and stirring at the speed of 1000r/min for 15 min.
(4) The remaining water was added to the butylated amino resin and stirred at 1000r/min for 15 min.
(5) And (4) mixing the two stirred materials obtained in the step (3) and the step (4), adding a defoaming agent BYK052 and a flatting agent BYK331 into the mixture, and uniformly stirring to obtain the coating.
Comparative example 1
The only difference from example 1 is: the fluorine-containing acrylic resin is changed into epoxy resin.
Comparative example 2
The only difference from example 1 is: the fluorine-containing acrylic resin does not contain glycidyl neodecanoate.
After spraying the products with the coatings of the examples and comparative examples, the films obtained by each spraying were tested:
the sweat resistance is determined by referring to a method of European Union standard I5012870, the acetone resistance is directly tested by dipping a cotton stick in acetone, the acid and alkali resistance is detected by referring to a method of GB/T1771-2007, the humidity resistance is determined by referring to a method of GB/T1740-2007, and the wear resistance is determined by referring to requirements of GB/T8013.2-2018 and GB/T12967.1-2008.
TABLE 1 Corrosion and abrasion resistance results of the coating films
As can be seen from Table 1, the coating prepared by the invention has good sweat resistance, acetone resistance, acid and alkali resistance, humidity resistance and wear resistance, so that the coating is coated on the surface of an electronic product by adopting a spraying or electrophoresis mode, and the service life of the electronic product can be effectively prolonged.
In addition to the above embodiments, the present invention also includes other embodiments, and any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of the claims of the present invention.
Claims (8)
1. A sweat-resistant water-soluble acrylic resin coating is characterized in that: the coating comprises the following components in parts by weight:
20-25 parts of fluorine-containing acrylic resin
20-25 parts of butyl etherified amino resin
6-10 parts of dispersant
0.1 to 0.5 portion of defoaming agent
0.1-0.5 part of flatting agent
40-50 parts of water.
2. The sweat-resistant water-soluble acrylic resin coating as claimed in claim 1, wherein: the fluorine-containing acrylic resin is prepared from the following materials:
5-10 parts of fluorine-containing acrylic monomer
1-3 parts of acrylic acid
10-15 parts of methyl methacrylate
5-10 parts of isooctyl methacrylate
5-10 parts of tertiary carboxylic acid glycidyl ester
5-10 parts of glycidyl methacrylate
5-10 parts of neodecanoic acid glycidyl ester
1-5 parts of silane coupling agent
0.5 to 1.5 portions of initiator
40-50 parts of a solvent.
3. The sweat-resistant water-soluble acrylic resin coating as claimed in claim 1, wherein: the dispersing agent is a mixed solution of n-butyl alcohol, propylene glycol butyl ether and isopropanol, and the volume ratio of the n-butyl alcohol to the propylene glycol butyl ether to the isopropanol is as follows: 4-6: 1-2.
4. The sweat-resistant water-soluble acrylic resin coating as claimed in claim 1, wherein: the defoaming agent is a silicon defoaming agent, and the leveling agent is an organic silicon leveling agent.
5. The sweat-resistant water-soluble acrylic resin coating as claimed in claim 2, wherein: the fluorine-containing acrylic monomer is one of 3-fluoroethyl methacrylate, 4-fluorodecyl methacrylate, 6-fluorobutyl acrylate and 12-fluoroheptyl methacrylate.
6. The sweat-resistant water-soluble acrylic resin coating as claimed in claim 2, wherein: the initiator is one of azobisisobutyronitrile, azobisisoheptonitrile, benzoyl peroxide or dicumyl peroxide.
7. The sweat-resistant water-soluble acrylic resin coating as claimed in claim 2, wherein: the solvent is one of toluene, xylene, ethyl acetate, butyl acetate, butanol, ethylene glycol butyl ether, cyclohexanone and butanone.
8. A preparation method of sweat-resistant water-soluble acrylic resin paint is characterized by comprising the following steps: the method comprises the following specific steps:
(1) preparation of fluorine-containing acrylic resin: under the protection of nitrogen, mixing a fluorine-containing acrylic acid monomer, acrylic acid, methyl methacrylate, isooctyl methacrylate, glycidyl versatate, glycidyl methacrylate, glycidyl neodecanoate and an initiator according to a proportion at the temperature of 95-105 ℃ of a reactor to obtain a mixed solution, then dropwise adding the mixed solution into a solvent for 2-3 hours, keeping the temperature for continuously reacting for 6-8 hours after the dropwise adding of the mixed solution is finished, then cooling to 65-75 ℃, adding a silane coupling agent for continuously reacting at a constant temperature for 3-5 hours, cooling to 10-30 ℃ after the reaction is finished, and discharging to obtain fluorine-containing acrylic resin;
(2) weighing the components of the coating according to the proportion for later use;
(3) adding a dispersing agent and a half amount of water into the fluorine-containing acrylic resin, stirring, and stirring at the speed of 1000-1200 r/min for 10-15 min;
(4) adding the rest water into the butylated amino resin, stirring at the speed of 1000-1200 r/min for 10-15 min;
(5) and (4) mixing the two stirring materials obtained in the step (3) and the step (4), adding a defoaming agent and a leveling agent, and uniformly stirring to obtain the coating.
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| CN201911068870.1A CN110922851A (en) | 2019-11-05 | 2019-11-05 | Sweat-resistant water-soluble acrylic resin coating and preparation method thereof |
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| CN201911068870.1A CN110922851A (en) | 2019-11-05 | 2019-11-05 | Sweat-resistant water-soluble acrylic resin coating and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112375446A (en) * | 2020-11-30 | 2021-02-19 | 江苏中新瑞光学材料有限公司 | Method for preparing sweat-resistant and wear-resistant coating |
| CN115838556A (en) * | 2022-12-16 | 2023-03-24 | 山东新升实业发展有限责任公司 | Metal support anti-corrosion treatment material and production process thereof |
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| CN102617783A (en) * | 2012-04-10 | 2012-08-01 | 广东银洋树脂有限公司 | Preparation method and application of water-soluble fluorine-containing acrylic resin |
| CN102702437A (en) * | 2012-06-29 | 2012-10-03 | 上海东升新材料有限公司 | Styrene-acrylic emulsion as well as preparation method and application thereof |
| CN102838707A (en) * | 2012-09-19 | 2012-12-26 | 江阴恒兴涂料有限公司 | High-performance water-soluble acrylic resin and preparation method thereof |
| CN103013208A (en) * | 2012-12-31 | 2013-04-03 | 广东工业大学 | Water-soluble UV-curing fluoroacrylate coating and preparation method thereof |
| US8629218B2 (en) * | 2010-05-13 | 2014-01-14 | Ppg Industries Ohio, Inc. | Curable film-forming compositions containing ortho-hydroxyl aromatic functional acrylic polymers |
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2019
- 2019-11-05 CN CN201911068870.1A patent/CN110922851A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8629218B2 (en) * | 2010-05-13 | 2014-01-14 | Ppg Industries Ohio, Inc. | Curable film-forming compositions containing ortho-hydroxyl aromatic functional acrylic polymers |
| CN102617783A (en) * | 2012-04-10 | 2012-08-01 | 广东银洋树脂有限公司 | Preparation method and application of water-soluble fluorine-containing acrylic resin |
| CN102702437A (en) * | 2012-06-29 | 2012-10-03 | 上海东升新材料有限公司 | Styrene-acrylic emulsion as well as preparation method and application thereof |
| CN102838707A (en) * | 2012-09-19 | 2012-12-26 | 江阴恒兴涂料有限公司 | High-performance water-soluble acrylic resin and preparation method thereof |
| CN103013208A (en) * | 2012-12-31 | 2013-04-03 | 广东工业大学 | Water-soluble UV-curing fluoroacrylate coating and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112375446A (en) * | 2020-11-30 | 2021-02-19 | 江苏中新瑞光学材料有限公司 | Method for preparing sweat-resistant and wear-resistant coating |
| CN115838556A (en) * | 2022-12-16 | 2023-03-24 | 山东新升实业发展有限责任公司 | Metal support anti-corrosion treatment material and production process thereof |
| CN115838556B (en) * | 2022-12-16 | 2024-01-23 | 山东新升实业发展有限责任公司 | Metal support anti-corrosion treatment material and production process thereof |
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