CN111647353A - Preparation method of normal temperature cured transparent hydrophobic and oleophobic coating material - Google Patents
Preparation method of normal temperature cured transparent hydrophobic and oleophobic coating material Download PDFInfo
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- CN111647353A CN111647353A CN202010345997.XA CN202010345997A CN111647353A CN 111647353 A CN111647353 A CN 111647353A CN 202010345997 A CN202010345997 A CN 202010345997A CN 111647353 A CN111647353 A CN 111647353A
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/24—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/28—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen sulfur-containing groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The preparation method of the normal temperature curing transparent hydrophobic and oleophobic coating material comprises the following steps: s1, preparing materials, namely preparing raw materials required by the composition A and the composition B respectively; the raw material components of the composition A are as follows: alkyl silane, sulfur-containing silane, deionized water, acetic acid, an alcohol solvent and fluorosilane; the raw material components of the composition B are as follows: one type of silica and two types of silica; s2, preparing a composition A, mixing and stirring raw materials of the composition A according to the following proportion, and mixing and stirring alkylsilane: sulfur-containing silane: deionized water: acetic acid: alcohol solvent: 10-15: 5-20: 0.5-1: 100: 0.01 to 0.05; preparing a composition B, mixing and stirring the raw materials of the composition B according to the following proportion: and (2) second-class silicon dioxide is 10-20: 80-100 parts of; s3, mixing and stirring, wherein the mixture ratio of the composition A to the composition B is as follows: 80-100: 30-50, mixing the raw material of the composition A in the step S2 for 24 hours, then mixing the raw material of the composition B in the step S2, and stirring for 8 hours to prepare the normal-temperature cured transparent hydrophobic and oleophobic coating material.
Description
Technical Field
The invention belongs to the technical field of materials, and particularly relates to a preparation method of a normal-temperature cured transparent hydrophobic and oleophobic coating material.
Background
The existing hydrophobic coating generally has the defects of lipophilic dirt and fast effect attenuation, and the super-hydrophobic coating (the water contact angle is more than 150 degrees) has the characteristics of complex construction process and difficult large-scale popularization.
Disclosure of Invention
The invention aims to solve the problems and provides a preparation method of a normal-temperature curing transparent hydrophobic and oleophobic coating material which can solve the technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the preparation method of the normal temperature curing transparent hydrophobic and oleophobic coating material comprises the following steps: s1, preparing materials, namely preparing raw materials required by the composition A and the composition B respectively;
the raw material components of the composition A are as follows: alkyl silane, sulfur-containing silane, deionized water, acetic acid, an alcohol solvent and fluorosilane;
the raw material components of the composition B are as follows: one type of silica and two types of silica;
s2, preparing a composition A, mixing and stirring raw materials of the composition A according to the following proportion, and mixing and stirring alkylsilane: sulfur-containing silane: deionized water: acetic acid: alcohol solvent: 10-15: 5-20: 0.5-1: 100: 0.01 to 0.05;
preparing a composition B, mixing and stirring the raw materials of the composition B according to the following proportion: and (2) second-class silicon dioxide is 10-20: 80-100 parts of;
s3, mixing and stirring, wherein the mixture ratio of the composition A to the composition B is as follows: 80-100: 30-50, mixing the raw material of the composition A in the step S2 for 24 hours, then mixing the raw material of the composition B in the step S2, and stirring for 8 hours to prepare the normal-temperature cured transparent hydrophobic and oleophobic coating material.
Preferably, in the step S1, the mesh number of the first type of silica is 100 to 200nm, and the mesh number of the second type of silica is 10 to 50 nm.
Preferably, in the above step S1, the alkylsilane is any one or more of 1,2 bis (triethoxysilyl) ethane, methyltriethoxysilane, methyltrimethoxysilane and 1,2 bis (trimethoxysilyl) ethane.
Preferably, in the above S1 step, the sulfur-containing silane is any one of 3-mercaptopropyltrimethoxysilane, 3-mercaptopropyltriethoxysilane, and 3-mercaptocyanopropyltriethoxysilane.
Preferably, in the above step S1, the fluorosilane is any one of heptadecafluorodecyltriethoxysilane, tridecafluorooctyltriethoxysilane and heptadecafluorodecyltrichlorosilane.
Compared with the prior art, the preparation method of the normal temperature curing transparent hydrophobic and oleophobic coating material has the advantages that: can be cured at normal temperature, can realize the water and oil dredging by chemically bonding fluorine-containing substances, has simple construction process and has popularization.
The requirement that the water contact angle exceeds 150 degrees is met.
Drawings
FIG. 1 is a graph of water contact angle provided by the present invention.
Fig. 2 is a structural diagram of the apparatus of the material distributing part of the composition B provided by the present invention.
Fig. 3 is a structural diagram of a blowing and distributing nozzle provided by the invention.
Fig. 4 is a structural diagram of a circular ring tube provided by the invention.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
The preparation method of the normal temperature curing transparent hydrophobic and oleophobic coating material comprises the following steps: s1, preparing materials, namely preparing raw materials required by the composition A and the composition B respectively;
the raw material components of the composition A are as follows: alkyl silane, sulfur-containing silane, deionized water, acetic acid, an alcohol solvent and fluorosilane;
further, the alkylsilane is any one or more of 1,2 bis (triethoxysilyl) ethane, methyltriethoxysilane, methyltrimethoxysilane and 1,2 bis (trimethoxysilyl) ethane.
Secondly, the sulfur-containing silane is any one of 3-mercaptopropyltrimethoxysilane, 3-mercaptopropyltriethoxysilane and 3-mercaptocyanopropyltriethoxysilane.
The fluorosilane is any one of heptadecafluorodecyltriethoxysilane, tridecafluorooctyltriethoxysilane and heptadecafluorodecyltrichlorosilane.
The raw material components of the composition B are as follows: one type of silica and two types of silica;
the mesh size of the silica is 100-200 nm.
The second type of silica of this embodiment has a mesh size of 10 to 50 nm.
S2, preparing a composition A, mixing and stirring raw materials of the composition A according to the following proportion, and mixing and stirring alkylsilane: sulfur-containing silane: deionized water: acetic acid: alcohol solvent: 10-15: 5-20: 0.5-1: 100: 0.01 to 0.05;
preparing a composition B, mixing and stirring the raw materials of the composition B according to the following proportion: and (2) second-class silicon dioxide is 10-20: 80-100 parts of;
s3, mixing and stirring, wherein the mixture ratio of the composition A to the composition B is as follows: 80-100: 30-50, mixing the raw material of the composition A in the step S2 for 24 hours, then mixing the raw material of the composition B in the step S2, and stirring for 8 hours to prepare the normal-temperature cured transparent hydrophobic and oleophobic coating material.
Example one
The specific formulation of composition A in kg for this example is as follows:
the specific formulation of composition B in kg for this example is as follows:
| name of raw materials | Amount of the formula kg |
| Silicon dioxide | 15 |
| Class II silica | 90 |
The composition A90kg and the composition B40kg of this example were weighed and mixed to prepare a transparent hydrophobic and oleophobic coating material curable at room temperature. The test record of the normal temperature cured transparent hydrophobic and oleophobic coating material after immersion or spraying operation is as follows:
the following are conventional hydrophobic materials, test records when subjected to immersion or spray operations:
from the above analysis and comparison of the test data, it can be known that: the hydrophobic oil performance of this embodiment is higher than the hydrophobic oil performance of comparative example far away under the same condition, promptly, can realize the function of water-oil double-phobia, need not to go to use specific hydrophobic oil material according to different places, selects more conveniently and can further enlarge application scope, has stronger popularization nature.
Secondly, as shown in figure 1, the hydrophobic and oleophobic coating with the water contact angle of more than 150 degrees can be prepared by the components in proportion, so that the dual requirements of super hydrophobic oil are met.
In addition, when the paint is not used, the normal temperature curing transparent hydrophobic and oleophobic coating material of the embodiment is stored through a packaging barrel, and the paint can be cured at normal temperature through chemically bonding fluorine-containing substances at normal temperature so as to meet the requirements of soaking and spraying, and the construction process is simple.
Also, as shown in fig. 2 and 3, the composition B is continuously added to the composition a and the composition a is simultaneously stirred in the stirring device, and in the above-mentioned S3 step, the composition B is added to the composition a by feeding with the twin screw 1 and dividing by the air blowing dividing nozzle 2. The composition B can be scattered and scattered into the composition A in the mode so as to improve the mixing uniformity of raw materials, and the distribution uniformity of all components of the hydrophobic and oleophobic coating material can be improved, so that the distribution uniformity of all components of the solidified hydrophobic and oleophobic coating material is finally achieved, and the phenomenon of layering in a liquid state is avoided.
Further, the air blowing material distributing nozzle 2 comprises a vertical cylinder 20 and a conical cylinder 21 connected to the lower end of the vertical cylinder 20, the axis of the vertical cylinder 20 is overlapped with the axis of the conical cylinder 21, an outer material distributing cylinder 22 is connected to the inner portion of the upper end of the conical cylinder 21, the inner wall of the outer material distributing cylinder 22 is flush with the inner wall of the vertical cylinder 20, a cross 23 is arranged in the vertical cylinder 20, the cross 23 is in a horizontal state and is fixed in the vertical cylinder 20, the air blowing material distributing nozzle further comprises a conical material distributing body 24, the axis of the conical material distributing body is overlapped with the axis of the vertical cylinder 20, the tip of the conical material distributing body 24 is fixed at the center of the cross 23, the conical material distributing body 24 is located below the cross 23, the lower end of the conical material distributing body 24 extends into the center of the outer material distributing cylinder 22.
The inner wall of the conical barrel 21 is provided with a circular ring pipe 25 with an axial lead coinciding with the axial lead of the conical barrel 21, the circular ring pipe 25 is connected with a gas supply terminal through a gas supply pipeline, the gas supply terminal is a blower and the like, the circular ring pipe 25 is parallel to a cross, a plurality of downward air outlet conical holes 26 which are uniformly distributed on the inner lower side of the circular ring pipe 25 are arranged on the inner lower side of the circular ring pipe 25, and the air outlet conical holes 26 are obliquely arranged along the clockwise direction or the anticlockwise direction.
The air outlet taper holes 26 obliquely distributed in the clockwise or counterclockwise direction can form vortex type distribution on the composition B, and meanwhile, the air outlet of the air outlet taper holes 26 with large caliber can enlarge the air output to enlarge the distribution angle of the composition B.
Example two
The structure and the working principle of the embodiment are basically the same as those of the embodiment, and different structures are as follows: the specific formulation of composition A in kg for this example is as follows:
| name of raw materials | Amount of the formula kg |
| Alkyl silane | 10 |
| Sulfur-containing silanes | 15 |
| Deionized water | 10 |
| Acetic acid | 0.6 |
| Alcohol solvent (ethanol) | 100 |
| Fluorosilanes | 0.01 |
The specific formulation of composition B in kg for this example is as follows:
| name of raw materials | Amount of the formula kg |
| Silicon dioxide | 10 |
| Class II silica | 100 |
The composition A80kg and the composition B30kg of this example were weighed and mixed to prepare a transparent hydrophobic and oleophobic coating material curable at room temperature. The test record of the normal temperature cured transparent hydrophobic and oleophobic coating material after immersion or spraying operation is as follows:
the following are conventional hydrophobic materials, test records when subjected to immersion or spray operations:
from the above analysis and comparison of the test data, it can be known that: the hydrophobic oil performance of this embodiment is higher than the hydrophobic oil performance of comparative example far away under the same condition, promptly, can realize the function of water-oil double-phobia, need not to go to use specific hydrophobic oil material according to different places, selects more conveniently and can further enlarge application scope, has stronger popularization nature.
Secondly, as shown in figure 1, the hydrophobic and oleophobic coating with the water contact angle of more than 150 degrees can be prepared by the components in proportion, so that the dual requirements of super hydrophobic oil are met.
EXAMPLE III
The structure and the working principle of the embodiment are basically the same as those of the embodiment, and different structures are as follows: the specific formulation of composition A in kg for this example is as follows:
| name of raw materials | Amount of the formula kg |
| Alkyl silane | 15 |
| Sulfur-containing silanes | 5 |
| |
20 |
| Acetic acid | 1 |
| Alcohol solvent (ethanol) | 100 |
| Fluorosilanes | 0.05 |
The specific formulation of composition B in kg for this example is as follows:
| name of raw materials | Amount of the formula |
| Silicon dioxide | |
| 20 | |
| Class II silica | 80 |
The composition A100kg and the composition B50kg of this example were weighed and mixed to prepare a transparent hydrophobic and oleophobic coating material curable at room temperature. The test record of the normal temperature cured transparent hydrophobic and oleophobic coating material after immersion or spraying operation is as follows:
the following are conventional hydrophobic materials, test records when subjected to immersion or spray operations:
from the above analysis and comparison of the test data, it can be known that: the hydrophobic oil performance of this embodiment is higher than the hydrophobic oil performance of comparative example far away under the same condition, promptly, can realize the function of water-oil double-phobia, need not to go to use specific hydrophobic oil material according to different places, selects more conveniently and can further enlarge application scope, has stronger popularization nature.
Secondly, as shown in figure 1, the hydrophobic and oleophobic coating with the water contact angle of more than 150 degrees can be prepared by the components in proportion, so that the dual requirements of super hydrophobic oil are met.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (5)
1. A preparation method of a transparent hydrophobic and oleophobic coating material cured at normal temperature is characterized by comprising the following steps:
s1, preparing materials, namely preparing raw materials required by the composition A and the composition B respectively;
the raw material components of the composition A are as follows: alkyl silane, sulfur-containing silane, deionized water, acetic acid, an alcohol solvent and fluorosilane;
the raw material components of the composition B are as follows: one type of silica and two types of silica;
s2, preparing a composition A, mixing and stirring raw materials of the composition A according to the following proportion, and mixing and stirring alkylsilane: sulfur-containing silane: deionized water: acetic acid: alcohol solvent: 10-15: 5-20: 0.5-1: 100: 0.01 to 0.05;
preparing a composition B, mixing and stirring the raw materials of the composition B according to the following proportion: and (2) second-class silicon dioxide is 10-20: 80-100 parts of;
s3, mixing and stirring, wherein the mixture ratio of the composition A to the composition B is as follows: 80-100: 30-50, mixing the raw material of the composition A in the step S2 for 24 hours, then mixing the raw material of the composition B in the step S2, and stirring for 8 hours to prepare the normal-temperature cured transparent hydrophobic and oleophobic coating material.
2. The method as claimed in claim 1, wherein in step S1, the first type of silica has a mesh size of 100-200 nm and the second type of silica has a mesh size of 10-50 nm.
3. The method as claimed in claim 1, wherein the alkylsilane is any one or more of 1,2 bis (triethoxysilyl) ethane, methyltriethoxysilane, methyltrimethoxysilane and 1,2 bis (trimethoxysilyl) ethane in step S1.
4. The method as claimed in claim 1, wherein the sulfur-containing silane is any one of 3-mercaptopropyltrimethoxysilane, 3-mercaptopropyltriethoxysilane, and 3-mercaptocyanopropyltriethoxysilane in the step S1.
5. The method as claimed in claim 1, wherein the fluorosilane is any one of heptadecafluorodecyltriethoxysilane, tridecafluorooctyltriethoxysilane and heptadecafluorodecyltrichlorosilane in step S1.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114716156A (en) * | 2022-04-18 | 2022-07-08 | 韶关方舟长顺有机硅有限公司 | Hydrophobic, oleophobic and antifouling solution applied to glass surface and preparation method thereof |
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| CN1501965A (en) * | 2000-10-06 | 2004-06-02 | ��Ļ���Ű˾ | Emulsion and coated product thereof |
| KR20130075911A (en) * | 2011-12-28 | 2013-07-08 | 재단법인 포항산업과학연구원 | Coating solution for steel sheet, and manufacturing method thereof |
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Application publication date: 20200911 |