CN109107858B - Coating curing method - Google Patents
Coating curing method Download PDFInfo
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- CN109107858B CN109107858B CN201811013183.5A CN201811013183A CN109107858B CN 109107858 B CN109107858 B CN 109107858B CN 201811013183 A CN201811013183 A CN 201811013183A CN 109107858 B CN109107858 B CN 109107858B
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- curing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/542—No clear coat specified the two layers being cured or baked together
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2203/00—Other substrates
- B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
- B05D2203/35—Glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2602/00—Organic fillers
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of coatings, and particularly relates to a coating curing method. The invention provides a curing method of a coating, which comprises the following steps: a) preparing a curing agent into a curing liquid, placing the curing liquid on the surface of a substrate to form a curing liquid layer, and performing first drying to form a curing agent layer on the surface of the substrate; b) and placing the base liquid on the surface of the curing agent layer to form a base liquid layer, and curing to obtain the cured coating. Compared with the curing in the preparation process of the existing coating, the invention does not need to mix the curing agent into the base liquid, can effectively improve the long-term storage and use of the base liquid, improves the effective utilization rate of the base liquid, and solves the problem that the curing agent is directly added into the base liquid to form a mixed solution when in use, and the mixed solution is rapidly solidified to cause waste which can not be used continuously.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a coating curing method.
Background
The curing agent is a substance or a mixture that enhances or controls a curing reaction, and is generally used to improve strength, impermeability, stain resistance, etc. of a coating in a coating preparation process, and thus is widely used in the preparation of various organic and inorganic coatings. At present, the use method of the curing agent in the market generally mixes the curing agent with the base liquid, that is, a certain amount of the curing agent is directly added into the base liquid to form a mixed solution, so as to accelerate the curing speed, but the obtained mixed solution is generally used up in a short time, otherwise, the obtained mixed solution is cured and deteriorated and cannot be used continuously, which easily causes resource waste.
Disclosure of Invention
In view of the above, the present invention provides a method for curing a coating, which is used to solve the problem that when a curing agent is used, the curing agent is directly added into a base solution to form a mixed solution, and the obtained mixed solution is usually used up in a short time, otherwise, the obtained mixed solution is cured and deteriorated and cannot be used continuously, thereby wasting resources.
The specific technical scheme of the invention is as follows:
a method of curing a coating comprising the steps of:
a) preparing a curing agent into a curing liquid, placing the curing liquid on the surface of a substrate to form a curing liquid layer, and performing first drying to form a curing agent layer on the surface of the substrate;
b) and placing the base liquid on the surface of the curing agent layer to form a base liquid layer, and curing to obtain the cured coating.
The invention forms the curing agent layer on the surface of the substrate and then forms the base liquid layer on the curing agent layer for curing to obtain the cured coating, the curing agent layer is directly contacted with the base liquid layer to accelerate the speed of forming the coating with good strength and impermeability, and the coating has better performance.
In the invention, the step a) of preparing the curing agent into the curing liquid and then placing the curing liquid on the surface of the substrate to form the curing liquid layer specifically comprises the following steps: after a curing agent is prepared into a curing liquid, a substrate is placed in the curing liquid through a dip-coating method, and then first lifting is carried out, so that the curing liquid forms a curing liquid layer on the surface of the substrate. The speed of the first drawing is 1mm/s to 5mm/s, preferably 2 mm/s.
It should be noted that the curing liquid may also be disposed on the surface of the substrate by other methods to form a curing liquid layer, and is not limited herein.
The step b) of placing the base liquid on the surface of the curing agent layer to form the base liquid layer specifically comprises the following steps: and (3) placing the substrate with the surface formed with the curing agent layer into the base liquid by the dip coating method, and then carrying out second pulling, so that the base liquid forms a base liquid layer on the surface of the curing agent layer. The speed of the second drawing is 1mm/s to 5mm/s, preferably 2 mm/s.
The base liquid may be placed on the surface of the curing agent layer by other methods to form a base liquid layer, and is not particularly limited herein.
Preferably, the thickness of the curing agent layer is 100nm to 500 nm.
Preferably, the thickness of the cured coating is 500nm to 3 μm.
Preferably, the curing temperature is 150-250 ℃;
the curing time is 1-3 h.
Preferably, the temperature of the first drying is 20-60 ℃;
the first drying time is 0.5-2 h. In the present invention, the solvent in the solidified liquid layer is removed by first drying.
Preferably, the cured coating is selected from a potassium water glass cured layer, a sodium water glass cured layer, or a polyvinyl alcohol cured layer.
Preferably, the curing agent comprises an inorganic curing agent and/or an organic curing agent;
the inorganic curing agent comprises one or more of a silicon phosphate curing agent, a sodium fluoborate curing agent and a zinc oxide curing agent, and is preferably a silicon phosphate curing agent.
Preferably, the base fluid is selected from potassium water glass, sodium water glass or polyvinyl alcohol.
Preferably, the substrate is selected from an aluminum substrate, a glass substrate, a thin film substrate, or a silicon wafer substrate, and more preferably an aluminum substrate.
Preferably, after the step b) of placing the base liquid on the surface of the curing agent layer to form the base liquid layer and before the step b) of curing, the method further comprises: a second drying is performed.
Preferably, the temperature of the second drying is 20-60 ℃;
the second drying time is 0.5-2 h.
In the present invention, secondary drying before curing can make the coating more uniform and reduce cracking.
In summary, the present invention provides a method for curing a coating, comprising the following steps: a) preparing a curing agent into a curing liquid, placing the curing liquid on the surface of a substrate to form a curing liquid layer, and performing first drying to form a curing agent layer on the surface of the substrate; b) and placing the base liquid on the surface of the curing agent layer to form a base liquid layer, and curing to obtain the cured coating. The invention forms the curing agent layer on the surface of the substrate and then forms the base liquid layer on the curing agent layer for curing to obtain the cured coating, the curing agent layer is directly contacted with the base liquid layer to accelerate the speed of forming the coating with good strength and impermeability, and the coating has better performance.
Detailed Description
The invention provides a curing method of a coating, which is used for solving the problem that when a curing agent is used, the curing agent is directly added into a base liquid to form a mixed solution, the obtained mixed solution is usually used up in a short time, and otherwise, the obtained mixed solution is cured and deteriorated and cannot be used continuously, so that the resource waste is caused.
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
This example produces a hydrophilic thin film coating on an aluminum substrate comprising the steps of:
1. weighing a silicon phosphate curing agent, dissolving the silicon phosphate curing agent in absolute ethyl alcohol to form a curing liquid with the mass fraction of 1-5%, and then stirring uniformly to fully dissolve the curing liquid for later use.
2. Weighing potassium water glass (modulus 2.5), adding the potassium water glass into deionized water to prepare a base solution with the mass fraction of 30-70%, and then uniformly stirring to fully dissolve the potassium water glass for later use.
3. Immersing the aluminum substrate in the curing agent for 5min, carrying out first lifting at the speed of 2mm/s and first drying at the temperature of 50 ℃ for 60min, removing absolute ethyl alcohol, and repeating the process for three times to form a uniform curing agent layer on the surface of the aluminum substrate.
4. And (3) immersing the aluminum substrate with the surface formed with the curing agent layer in the step (3) in a base solution, after 5min of immersion, carrying out second lifting at the speed of 2mm/s and carrying out second drying at the temperature of 25 ℃ for 120min, and repeating the process for three times to enable the curing agent layer to form a hydrophilic film.
5. And (4) curing the hydrophilic film dried in the step (4) at the temperature of 150-250 ℃ for 1 hour to obtain a layer of firm hydrophilic film coating with good impermeability. Through detection, the hydrophilic film coating prepared by the embodiment is relatively uniform and has relatively good continuous hydrophilic performance.
Example 2
This example produces a hydrophilic thin film coating on an aluminum substrate/glass substrate comprising the steps of:
1. weighing sodium fluoborate curing agent, dissolving the sodium fluoborate curing agent in deionized water to form a curing liquid with the mass fraction of 1-5%, and then stirring uniformly to fully dissolve the curing liquid for later use.
2. Weighing potassium water glass (modulus 2.5), adding the potassium water glass into deionized water to prepare a base solution with the mass fraction of 30-70%, and then uniformly stirring to fully dissolve the potassium water glass for later use.
3. And immersing the aluminum/glass substrate in the curing agent, carrying out first lifting at the speed of 2mm/s after soaking for 5min, carrying out first drying at the temperature of 50 ℃ for 60min, removing deionized water, and repeating the process for three times to form a uniform curing agent layer on the surface of the aluminum substrate/glass substrate.
4. And (3) immersing the aluminum/glass substrate with the surface formed with the curing agent layer in the step (3) in a base solution, after 5min of immersion, carrying out second lifting at the speed of 2mm/s and second drying at the temperature of 25 ℃ for 120min, and repeating the process for three times to enable the curing agent layer to form a hydrophilic film.
5. And (4) curing the hydrophilic film dried in the step (4) at the temperature of 150-250 ℃ for 1 hour to obtain a layer of firm hydrophilic film coating with good impermeability. Through detection, the hydrophilic film coating prepared by the embodiment is relatively uniform and has relatively good continuous hydrophilic performance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A method of curing a coating, comprising the steps of:
a) preparing a curing agent into a curing liquid, placing the curing liquid on the surface of a substrate to form a curing liquid layer, and performing first drying to form a curing agent layer on the surface of the substrate;
b) placing the base liquid on the surface of the curing agent layer to form a base liquid layer, and curing to obtain a cured coating;
the cured coating is selected from a potash water glass cured layer;
the curing agent comprises a silicon phosphate curing agent;
the thickness of the cured coating is 500 nm-3 mu m;
the curing temperature is 150-250 ℃;
the curing time is 1-3 h.
2. The curing method according to claim 1, wherein the thickness of the curing agent layer is 100nm to 500 nm.
3. The curing method of claim 1, wherein the cured coating has a thickness of 500nm to 3 μm.
4. The curing method according to claim 1, wherein the temperature of the primary drying is 20 ℃ to 60 ℃;
the first drying time is 0.5-2 h.
5. The curing method of claim 1, wherein said substrate is selected from the group consisting of an aluminum substrate, a glass substrate, a film substrate, and a silicon wafer substrate.
6. The curing method according to claim 1, wherein the step b) further comprises, after the step of placing the base liquid on the surface of the curing agent layer to form the base liquid layer and before the step of curing: a second drying is performed.
7. The curing method according to claim 6, wherein the temperature of the secondary drying is 20 ℃ to 60 ℃;
the second drying time is 0.5-2 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811013183.5A CN109107858B (en) | 2018-08-31 | 2018-08-31 | Coating curing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811013183.5A CN109107858B (en) | 2018-08-31 | 2018-08-31 | Coating curing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109107858A CN109107858A (en) | 2019-01-01 |
| CN109107858B true CN109107858B (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811013183.5A Active CN109107858B (en) | 2018-08-31 | 2018-08-31 | Coating curing method |
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| CN (1) | CN109107858B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112760005A (en) * | 2020-12-28 | 2021-05-07 | 江苏鑫能材料科技有限公司 | Environment-friendly solvent-free thick-coating high-adhesion cold-spraying zinc sealant and construction method thereof |
| CN115259687A (en) * | 2022-07-29 | 2022-11-01 | 中国第一汽车股份有限公司 | Regulating part for humidity in automobile cabin and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1701102A (en) * | 2002-03-27 | 2005-11-23 | 住友大阪水泥株式会社 | Hydrophilic film, process for producing the same, and paint for formation of hydrophilic film |
| CN103881431A (en) * | 2014-03-24 | 2014-06-25 | 浙江大学 | Silane coupling agent modified lithium silicate base coating and preparation method thereof |
| CN103966900A (en) * | 2013-01-31 | 2014-08-06 | 淄博爱普陶瓷新材料科技有限公司 | Solid surface sizing agent and application method thereof |
| CN106811740A (en) * | 2015-11-27 | 2017-06-09 | 中国科学院宁波材料技术与工程研究所 | Long-acting drag-reducing coating, its preparation method and application |
-
2018
- 2018-08-31 CN CN201811013183.5A patent/CN109107858B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1701102A (en) * | 2002-03-27 | 2005-11-23 | 住友大阪水泥株式会社 | Hydrophilic film, process for producing the same, and paint for formation of hydrophilic film |
| CN103966900A (en) * | 2013-01-31 | 2014-08-06 | 淄博爱普陶瓷新材料科技有限公司 | Solid surface sizing agent and application method thereof |
| CN103881431A (en) * | 2014-03-24 | 2014-06-25 | 浙江大学 | Silane coupling agent modified lithium silicate base coating and preparation method thereof |
| CN106811740A (en) * | 2015-11-27 | 2017-06-09 | 中国科学院宁波材料技术与工程研究所 | Long-acting drag-reducing coating, its preparation method and application |
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| Publication number | Publication date |
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| CN109107858A (en) | 2019-01-01 |
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