CN116535976A - Lightning protection metal mesh surface coating for fan blade, preparation method and application - Google Patents
Lightning protection metal mesh surface coating for fan blade, preparation method and application Download PDFInfo
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- CN116535976A CN116535976A CN202310523314.9A CN202310523314A CN116535976A CN 116535976 A CN116535976 A CN 116535976A CN 202310523314 A CN202310523314 A CN 202310523314A CN 116535976 A CN116535976 A CN 116535976A
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- coupling agent
- super
- silane coupling
- coating
- hydrophobic coating
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- 239000011248 coating agent Substances 0.000 title claims abstract description 60
- 238000000576 coating method Methods 0.000 title claims abstract description 60
- 239000002184 metal Substances 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title description 4
- 230000003075 superhydrophobic effect Effects 0.000 claims abstract description 42
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 31
- 239000003973 paint Substances 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- -1 aminopropyl Chemical group 0.000 claims abstract description 11
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 claims abstract description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 6
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 5
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 4
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000002105 nanoparticle Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- 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
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
-
- 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
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a lightning protection metal mesh surface coating for fan blades, which is prepared by adding a silane coupling agent into a super-hydrophobic coating, wherein the molecular formula of the silane coupling agent is NH 2 CH 2 CH 2 CH 2 Si(OC 2 H 5 ) 3 The groups present in the formula are: aminopropyl (-CH) 2 CH 2 CH 2 NH 2 ) Ethoxy (-OC) 2 H 5 ) The super-hydrophobic coating comprises a top paint and a primer arranged under the top paint, wherein the top paint is nano silicon dioxide particles, the primer is a resin coating, and in the silane coupling agent, aminopropyl (-CH) connected with silicon atoms 2 CH 2 CH 2 NH 2 ) The resin is used for reacting with the resin in the super-hydrophobic coating primer to form a covalent bond; and (3) withOther three ethoxy groups (-OC) attached to the silicon atom 2 H 5 ) Is used for hydrolyzing to form silanol, so as to achieve the purposes of forming oligomer by mutual polymerization and combining with nanometer. The invention has excellent wear resistance and weather resistance.
Description
Technical Field
The invention relates to the field of electric power materials, in particular to a lightning protection metal mesh surface coating for fan blades, a preparation method and application thereof.
Background
At present, the super-hydrophobic coating is widely applied to external insulation of a power system, and has good antifouling and waterproof performances. The electric power equipment can be ensured to maintain good insulating performance under conditions of heavy rain, icing and the like. In the existing fan blade anti-icing technology, the adhesion of water drops on the blade can be reduced by using the super-hydrophobic coating, so that the aim of reducing blade icing is fulfilled, and the method is high in feasibility.
However, although the rotation of the fan blade is favorable for the sliding of water drops and reducing icing, on the other hand, the rotating blade also increases the abrasion of the surface, and the super-hydrophobic coating is continuously rubbed with air in the process of contacting with the surface, so that the abrasion of the coating is increased, and the service life is greatly reduced.
Based on the above, a method for increasing the wear resistance of the super-hydrophobic coating is urgently needed, and the problem that the service life of the super-hydrophobic coating is too short is effectively solved.
Disclosure of Invention
The invention aims to provide a lightning protection metal mesh surface coating for a fan blade, which can increase the tolerance of a super-hydrophobic coating, and solve the problem of poor weather resistance of the super-hydrophobic coating in the anti-icing process of the fan blade in the related technology.
The technical scheme for realizing the aim of the invention is as follows: a lightning protection metal mesh surface coating for fan blades is prepared by adding a silane coupling agent into a super-hydrophobic coating, wherein the molecular formula of the silane coupling agent is NH 2 CH 2 CH 2 CH 2 Si(OC 2 H 5 ) 3 Of the formula (I)The groups present are: aminopropyl (-CH) 2 CH 2 CH 2 NH 2 ) Ethoxy (-OC) 2 H 5 )，
The super-hydrophobic coating comprises a top paint and a primer arranged under the top paint, wherein the top paint is nano silicon dioxide particles, the primer is a resin coating,
in the silane coupling agent, aminopropyl (-CH) connected with silicon atom 2 CH 2 CH 2 NH 2 ) The resin is used for reacting with the resin in the super-hydrophobic coating primer to form a covalent bond; other three ethoxy groups (-OC) attached to the silicon atom 2 H 5 ) Is used for hydrolyzing to form silanol, so as to achieve the purposes of forming oligomer by mutual polymerization and combining with nanometer.
Preferably, the addition amount of the silane coupling agent in the superhydrophobic coating is 0.35%.
The application also provides a preparation method of the lightning protection metal mesh surface coating for the fan blade,
first, ethoxy (-OC) 2 H 5 ) Reacting with water to produce silanol and ethane;
secondly, the generated silanol is dehydrated and condensed with each other to form an oligomer;
thirdly, hydrogen bonds are formed between the hydroxyl groups of the coupling agent and the hydroxyl groups on the surfaces of the nano particles;
fourth, the hydrogen bond is dehydrated to form a silicon oxygen bond and nano SiO under the condition of drying and solidifying 2 And (3) combining.
The invention also provides an application of the lightning protection metal mesh surface coating for the fan blade, the silane coupling agent is applied to the fan blade, and the silane coupling agent is added into the super-hydrophobic coating on the fan blade.
By adopting the technical scheme, the invention has the following beneficial effects: (1) The invention adds a certain amount of silane coupling agent into the super-hydrophobic coating, and adds the silane coupling agent into the resin and nano SiO 2 The molecular bridge is formed between the primer and the finishing coat, and the primer and the finishing coat in the super-hydrophobic coating can be effectively combined together by utilizing the characteristic of high chemical energy of the silicon-oxygen bond, so that the wear resistance of the super-hydrophobic material is greatly improved.
(2) The invention can improve the high-pressure water resistant time of the super-hydrophobic coating by 50-70% and the spray quantity of the pollution-resistant liquid by 30-40%. The tolerance of the super-hydrophobic coating in a severe environment is greatly improved, and the problem that the weather resistance of the super-hydrophobic coating in the anti-icing process of the fan blade in the related technology is poor is solved, so that the service life of the super-hydrophobic coating on the fan blade is prolonged.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which
FIG. 1 is a schematic structural diagram of a superhydrophobic coating of the invention;
FIG. 2 shows ethoxy (-OC) groups in the silane coupling agent of the present invention 2 H 5 ) The chemical reaction equation that exists during the bonding process.
Detailed Description
Example 1
The mechanism of action of the silane coupling agent in the superhydrophobic coating is described below with reference to fig. 1 to 2. Adding a silane coupling agent into the super-hydrophobic coating, wherein the molecular formula of the silane coupling agent is NH 2 CH 2 CH 2 CH 2 Si(OC 2 H 5 ) 3 The groups present in the formula are: aminopropyl (-CH) 2 CH 2 CH 2 NH 2 ) Ethoxy (-OC) 2 H 5 )，
The super-hydrophobic coating comprises a top paint and a primer arranged under the top paint, wherein the top paint is nano silicon dioxide particles, the primer is a resin coating, the primer is coated on a substrate, and the substrate is a metal net.
In the silane coupling agent, aminopropyl (-CH) connected with silicon atom 2 CH 2 CH 2 NH 2 ) The resin is used for reacting with the resin in the super-hydrophobic coating primer to form a covalent bond; other three ethoxy groups (-OC) attached to the silicon atom 2 H 5 ) Is used for hydrolyzing to form silanol, so as to achieve the purposes of forming oligomer by mutual polymerization and combining with nanometer. The molecular formula of the silane coupling agent is NH 2 CH 2 CH 2 CH 2 Si(OC 2 H 5 ) 3 The general formula is as follows: RSiX 3 The structural formula of the silane coupling agent is shown in fig. 1, and it can be seen that the functional groups reacting with the chemical and physical properties of the silane coupling agent are two types, including: aminopropyl (-CH) representing an R group 2 CH 2 CH 2 NH 2 ) And ethoxy (-OC) representing an X group 2 H 5 )。
Aminopropyl (-CH) 2 CH 2 CH 2 NH 2 ) Belongs to hydrophobic (organophilic) functional groups, so that the resin is easy to combine with resin in organic matters well; and ethoxy (-OC) 2 H 5 ) Can be combined with inorganic nano SiO 2 The specific reactions of the binding are shown in FIG. 2: first, ethoxy (-OC) 2 H 5 ) Reacts with water to produce silanol and ethane, the reaction chemical formula is: RSiX 3 +3H 2 O→RSi(OH) 3 +3HX; secondly, the generated silanol is dehydrated and condensed with each other to form an oligomer, and the reaction chemical formula is as follows:third, hydroxyl group of coupling agent and nano SiO 2 Hydrogen bonds are formed between hydroxyl groups on the surfaces of the particles, and the reaction chemical formula is as follows: />Fourth, the hydrogen bond is dehydrated to form a silicon oxygen bond and nano SiO under the condition of drying and solidifying 2 In combination, the reaction chemical formula is as follows:it is due to the presence of organophilic aminopropyl (-CH) groups in the middle of the silane coupling agent molecules 2 CH 2 CH 2 NH 2 ) And inorganically philic ethoxy (-OC) 2 H 5 ) The two functional groups can connect the primer and the finishing paint with very different chemical structure types and affinities in the super-hydrophobic coating at the interface, and increase nano SiO 2 And the resin base material and the filler are combined.
The invention increases the binding property of nano particles and resin by using the organic additive silane coupling agent as a molecular bridge of hydrophobic nano SiO2 and resin. Thereby enhancing the adhesion between the superhydrophobic topcoat and the primer, wherein: the finish paint is nano silicon dioxide particles with super-hydrophobic characteristics, provides super-hydrophobic performance for the coating, and has super-oleophobic performance; the primer is a resin coating with large-size roughness, and provides mechanical property and energy absorption property for the coating. The silane coupling agent is used for improving the bonding property of the primer and the finish paint, so that the effect of increasing the wear resistance of the super-hydrophobic coating is achieved, and the problems of poor weather resistance and insufficient service life of the super-hydrophobic coating on the surface of the fan blade in the operation process caused by poor bonding property of the primer and the finish paint are solved
Repeated verification of the silane coupling agents with different contents proves that the addition of 0.35% of the silane coupling agent KH550 into the top-coat paint of the super-hydrophobic coating is the most obvious in improving the performance of the current optimal system. The performance of the optimized templates and standard templates is shown in table 1.
TABLE 1 results of the bottom and top coating combinations test
In the test, high-pressure water (the pressure water pressure is about 0.3 MPa) spraying and pollution liquid spraying are adopted to simulate the impact resistance test of the coating, and the combination degree of the primer and the finish paint is verified. The test result shows that the effect of adding 0.35% of the silane coupling agent KH550 into the super-hydrophobic finish paint is optimal, the high-pressure water resistant time of the coating can be improved by 50-70%, and the spraying amount of the pollution-resistant liquid can be improved by 30-40%. The tolerance of the super-hydrophobic coating in a severe environment is greatly improved, so that the service life of the super-hydrophobic coating on the fan blade is prolonged.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (4)
1. A lightning protection metal mesh surface coating for fan blades is characterized in that: adding a silane coupling agent into the super-hydrophobic coating, wherein the molecular formula of the silane coupling agent is NH 2 CH 2 CH 2 CH 2 Si(OC 2 H 5 ) 3 The groups present in the formula are: aminopropyl (-CH) 2 CH 2 CH 2 NH 2 ) Ethoxy (-OC) 2 H 5 )，
The super-hydrophobic coating comprises a top paint and a primer arranged under the top paint, wherein the top paint is nano silicon dioxide particles, the primer is a resin coating,
in the silane coupling agent, aminopropyl (-CH) connected with silicon atom 2 CH 2 CH 2 NH 2 ) The resin is used for reacting with the resin in the super-hydrophobic coating primer to form a covalent bond; other three ethoxy groups (-OC) attached to the silicon atom 2 H 5 ) Is used for hydrolyzing to form silanol, so as to achieve the purposes of forming oligomer by mutual polymerization and combining with nanometer.
2. The lightning protection metal mesh surface coating for fan blades of claim 1, wherein: the addition amount of the silane coupling agent in the super-hydrophobic coating is 0.35%.
3. A method for preparing a lightning protection metal mesh surface coating for fan blades according to any one of claims 1-2, characterized in that:
first, ethoxy (-OC) 2 H 5 ) Reacting with water to produce silanol and ethane;
secondly, the generated silanol is dehydrated and condensed with each other to form an oligomer;
thirdly, hydrogen bonds are formed between the hydroxyl groups of the coupling agent and the hydroxyl groups on the surfaces of the nano particles;
fourth, the hydrogen bond is dehydrated to form a silicon oxygen bond and nano SiO under the condition of drying and solidifying 2 And (3) combining.
4. An application of a lightning protection metal mesh surface coating for fan blades is characterized in that: the silane coupling agent is applied to the fan blade, and the silane coupling agent is added into the super-hydrophobic coating on the fan blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310523314.9A CN116535976A (en) | 2023-05-10 | 2023-05-10 | Lightning protection metal mesh surface coating for fan blade, preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310523314.9A CN116535976A (en) | 2023-05-10 | 2023-05-10 | Lightning protection metal mesh surface coating for fan blade, preparation method and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116535976A true CN116535976A (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310523314.9A Pending CN116535976A (en) | 2023-05-10 | 2023-05-10 | Lightning protection metal mesh surface coating for fan blade, preparation method and application |
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| CN (1) | CN116535976A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499092A (en) * | 2015-11-30 | 2016-04-20 | 东南大学 | Transparent super-amphiphobic surface layer and layer-by-layer in-situ spraying reaction preparation method |
| CN110964395A (en) * | 2019-12-24 | 2020-04-07 | 杭州苏瑞尔科技有限公司 | High-durability super-hydrophobic and super-oleophobic transparent coating and preparation method thereof |
| CN112625468A (en) * | 2019-09-24 | 2021-04-09 | 舾蒙新材料科技(上海)有限公司 | Multifunctional composite coating and preparation method thereof |
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2023
- 2023-05-10 CN CN202310523314.9A patent/CN116535976A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499092A (en) * | 2015-11-30 | 2016-04-20 | 东南大学 | Transparent super-amphiphobic surface layer and layer-by-layer in-situ spraying reaction preparation method |
| CN112625468A (en) * | 2019-09-24 | 2021-04-09 | 舾蒙新材料科技(上海)有限公司 | Multifunctional composite coating and preparation method thereof |
| CN110964395A (en) * | 2019-12-24 | 2020-04-07 | 杭州苏瑞尔科技有限公司 | High-durability super-hydrophobic and super-oleophobic transparent coating and preparation method thereof |
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