CN112206952A - Ultrasonic-assisted thermal spraying device and preparation method of coating thereof - Google Patents
Ultrasonic-assisted thermal spraying device and preparation method of coating thereof Download PDFInfo
- Publication number
- CN112206952A CN112206952A CN202010941607.5A CN202010941607A CN112206952A CN 112206952 A CN112206952 A CN 112206952A CN 202010941607 A CN202010941607 A CN 202010941607A CN 112206952 A CN112206952 A CN 112206952A
- Authority
- CN
- China
- Prior art keywords
- storage tank
- coating
- liquid storage
- ultrasonic
- spraying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 53
- 239000011248 coating agent Substances 0.000 title claims abstract description 48
- 238000007751 thermal spraying Methods 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 239000007921 spray Substances 0.000 claims abstract description 19
- 238000005507 spraying Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000012767 functional filler Substances 0.000 claims abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 11
- 239000004643 cyanate ester Substances 0.000 claims description 9
- XBIUWALDKXACEA-UHFFFAOYSA-N 3-[bis(2,4-dioxopentan-3-yl)alumanyl]pentane-2,4-dione Chemical group CC(=O)C(C(C)=O)[Al](C(C(C)=O)C(C)=O)C(C(C)=O)C(C)=O XBIUWALDKXACEA-UHFFFAOYSA-N 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 abstract description 14
- 239000011159 matrix material Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 239000006229 carbon black Substances 0.000 description 3
- 150000001913 cyanates Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
- B05B15/25—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising using moving elements, e.g. rotating blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/002—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour incorporating means for heating or cooling, e.g. the material to be sprayed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0209—Multistage baking
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
An ultrasonic-assisted thermal spraying device and a preparation method of a coating thereof belong to the field of thermal control coatings. The invention solves the problems that the volatile organic micromolecules are polluted by the coating obtained by the existing polymer coating technology, which easily causes the performance reduction of the sensitive surface light, heat, electricity and the like of the spacecraft, and the defects of low bonding strength, poor coating uniformity and the like between the coating and the matrix. The invention relates to an ultrasonic-assisted thermal spraying device.A liquid storage tank is symmetrically provided with ultrasonic generators at the two sides of a stirring paddle at the bottom; the spray gun is connected with the liquid storage tank through a liquid suction pipe; the outer part of the liquid storage tank body is provided with a heating ring along the circumferential direction. The method comprises the following steps: adding the thermal spraying resin into a liquid storage tank, heating, adding the functional filler and the accelerator, uniformly stirring, carrying out intermittent ultrasonic, spraying, and carrying out segmented curing to obtain the coating. The invention reduces the coating pore, improves the bonding strength between the coating and the matrix and improves the comprehensive performance of the coating.
Description
Technical Field
The invention belongs to the field of thermal control coatings; in particular to an ultrasonic auxiliary thermal spraying device and a preparation method of a coating thereof.
Background
Thermal control coatings are a passive thermal control technique commonly used in spacecraft thermal design. The proper thermal control coating is selected, so that the parts of the spacecraft can be in the expected temperature range, and the thermal control coating plays an important role in normal on-orbit operation of the spacecraft. The common thermal control coating is mainly divided into organic and inorganic thermal control coatings, and when the organic thermal control coating is in a high vacuum environment, volatile auxiliary agents, solvents, incompletely cured molecular chain segments and other small molecules in the material of the organic thermal control coating can volatilize, so that the performance of optical, electrical, thermal control and the like on the sensitive surface of the spacecraft can be greatly influenced, and the safe and reliable work of the spacecraft can be influenced.
The thermal spraying technology is a method for forming a coating with specific functions by heating a spraying material to a molten or semi-molten state by using a heat source and then spraying the spraying material onto the surface of a pretreated metal substrate at a certain speed, and can generally prepare coatings with thermal control, friction reduction, high temperature resistance, oxidation resistance and the like, and is widely applied in the field of aerospace. The thermal spraying polymer is generally prepared from a resin raw material and a modifying material, wherein the modifying material comprises various functional fillers, an anti-aging agent, a toughening agent and the like, and the dry coating preparation process is suitable for a high-melting-point insoluble polymer material, and solves the problem that the performance of the spacecraft sensitive surface light, heat, electricity and the like is reduced due to volatile organic micromolecule pollution existing in an organic coating prepared by the traditional polymer coating technology such as electrostatic spraying and fluidized bed impregnation. Although the thermal spraying polymer is forcedly spread and wetted on the substrate through heating melting or softening and high-speed impact, if the functional filler added by the modification of the thermal spraying polymer is not uniformly dispersed in the molten polymer matrix, some pores and cavities inevitably exist among particles in the coating, and the defects of low bonding strength between the coating and the matrix and between layers, poor coating uniformity and the like are caused, so that the application of the thermal spraying polymer is limited to a certain extent.
Disclosure of Invention
The invention aims to solve the problems that the performance of the spacecraft sensitive surface light, heat, electricity and the like is reduced due to volatile organic micromolecule pollution of a coating obtained by the existing polymer coating technology, and the defects of low bonding strength, poor coating uniformity and the like exist between the coating and a substrate; the invention provides an ultrasonic-assisted thermal spraying device and a method for spraying a coating by using the same.
In order to solve the technical problem, the ultrasonic auxiliary thermal spraying device mainly comprises a high-pressure nitrogen cylinder 1, a pressure reducing valve 2, a liquid storage tank 3, a spray gun 6, a stirrer 9 and a pressure gauge 10, wherein the stirrer 9 comprises a motor 13 and a stirring paddle 14; the device also comprises a temperature controller 4, an ultrasonic generator 5, a heating ring 7 and a thermocouple 8;
the liquid storage tank 3 adopts a vertical double-layer structure and comprises an outer cylinder 302 and an inner cylinder 301 sleeved in the outer cylinder 302;
the top of the liquid storage tank 3 is provided with a charging hole 11 and a pressure gauge 10, the charging hole 11 is hermetically connected with an upper cover 12, the upper cover 12 is provided with a motor 13, the motor 13 is in transmission connection with a stirring paddle 14, and the stirring paddle 14 is arranged inside the inner cylinder 301;
the high-pressure nitrogen cylinder 1 is connected with the inner cylinder 301 through a vent pipe 15, the air outlet of the vent pipe 15 is communicated with the inner cylinder 301, and the vent pipe 15 is provided with a pressure reducing valve 2;
the spray gun 6 is connected with the liquid storage tank 3 through a pipette 16, and the lower end of the pipette 16 is positioned at the bottom of the inner cavity of the inner barrel 301 of the liquid storage tank 3;
two thermocouples 8 are symmetrically arranged at two sides of the stirring paddle 14 in the inner barrel 301, the thermocouples 8 are arranged below the liquid level of the liquid storage tank 3, and the thermocouples 8 are connected with a temperature controller 4 outside the liquid storage tank 3 through leads.
Further, the lance 6 is a pressure type lance.
The method for spraying the coating by adopting the device comprises the following steps:
step one, adding thermal spraying resin into a liquid storage tank 3, and heating the liquid storage tank 3 through a heating ring 7 to ensure that the thermal spraying is molten in the liquid storage tank 3 and becomes liquid;
secondly, adding functional filler and accelerant into the liquid storage tank 3, and starting the stirrer 9 to stir until the mixture is uniformly mixed;
starting an ultrasonic generator 5, adjusting the ultrasonic power, uniformly dispersing the functional filler in a molten thermal spraying system under the action of ultrasonic waves, and simultaneously removing bubbles in the molten thermal spraying resin system;
step four, opening the pressure reducing valve 2, controlling the pressure of the gas in the liquid storage tank 3, adjusting the oil output of the spray gun 6 and the distance between the spray gun 6 and the surface of the substrate, and spraying; and after the spraying is finished, placing the coating in a drying oven, and carrying out segmented curing to obtain the functional filler modified resin coating.
Further, the thermal spraying resin in the first step is cyanate ester resin, and the accelerator is aluminum acetylacetonate.
Further limiting, the heating temperature of the liquid storage tank 3 in the step one is controlled to be 70-90 ℃.
Further limiting, in the second step, the functional filler is one or a mixture of several of conductive carbon black, graphene and carbon nanotubes in any ratio, and the addition amount of the functional filler is 10-20% of the mass of the cyanate ester resin.
Further, in the second step, the accelerant is aluminum acetylacetonate, and the addition amount of the aluminum acetylacetonate is 0.5-2.5% of the mass of the cyanate ester resin.
And further limiting, in the third step, intermittent ultrasound is adopted for dispersion treatment, the power of the ultrasound is 1000-2000W, the time of each application of the ultrasound is 10-20 min, and the intermittent time is 3-5 min.
Further limiting, in the fourth step, the gas pressure in the liquid storage tank 3 is controlled to be 0.6MPa to 0.8MPa, the oil output is controlled to be 1.5 to 2.5 circles, and the spray distance is 20cm to 30 cm.
Further limiting, in the fourth step, the segmented curing process comprises curing at 140-160 ℃ for 1-2 h, curing at 170-190 ℃ for 1-2 h, and curing at 200-220 ℃ for 1-2 h.
The ultrasonic-assisted thermal spraying device of the invention has the advantages that ultrasonic waves act on a thermal spraying polymer to induce cavitation effect and release huge cavitation energy, on one hand, bubbles in a molten polymer system are eliminated, on the other hand, the frictional resistance of molecular motion of the polymer system is overcome, the viscosity and the surface tension of the molten polymer system are reduced, the wettability of the molten polymer system and a matrix is improved, and on the basis of the dispersion effect of the ultrasonic waves, the functional filler, the accelerator and other components in the thermal spraying polymer system are uniformly dispersed, the coating pores are reduced, the bonding strength between a coating and the matrix is improved, and the comprehensive performance of the coating is improved.
Drawings
FIG. 1 is a schematic structural view of an ultrasonically assisted thermal spray device;
FIG. 2 is a digital photograph of a carbon black modified cyanate ester organic coating prepared by ultrasonic-assisted thermal spraying;
fig. 3 is an SEM image of carbon black modified cyanate ester organic coating prepared by ultrasound-assisted thermal spraying.
Detailed Description
Embodiment 1, with reference to fig. 1, the ultrasonic-assisted thermal spraying apparatus of this embodiment mainly includes a high-pressure nitrogen gas cylinder 1, a pressure reducing valve 2, a liquid storage tank 3, a spray gun 6, a stirrer 9 and a pressure gauge 10, where the stirrer 9 includes a motor 13 and a stirring paddle 14; the device also comprises a temperature controller 4, an ultrasonic generator 5, a heating ring 7 and a thermocouple 8;
the liquid storage tank 3 adopts a vertical double-layer structure and comprises an outer cylinder 302 and an inner cylinder 301 sleeved in the outer cylinder 302;
the top of the liquid storage tank 3 is provided with a charging hole 11 and a pressure gauge 10, the charging hole 11 is hermetically connected with an upper cover 12, the upper cover 12 is provided with a motor 13, the motor 13 is in transmission connection with a stirring paddle 14, and the stirring paddle 14 is arranged inside the inner cylinder 301;
the high-pressure nitrogen cylinder 1 is connected with the inner cylinder 301 through a vent pipe 15, the air outlet of the vent pipe 15 is communicated with the inner cylinder 301, and the vent pipe 15 is provided with a pressure reducing valve 2;
the spray gun 6 is connected with the liquid storage tank 3 through a pipette 16, and the lower end of the pipette 16 is positioned at a position close to the bottom of the inner cavity of the inner barrel 301;
two thermocouples 8 are symmetrically arranged at two sides of the stirring paddle 14 in the inner barrel 301, the thermocouples 8 are arranged below the liquid level of the liquid storage tank 3, and the thermocouples 8 are connected with a temperature controller 4 outside the liquid storage tank 3 through leads;
wherein the spray gun 6 is a pressure type spray gun.
Example 2 the spray coating process using the process of example 1 was carried out as follows:
step one, adding 100g of cyanate resin into a liquid storage tank 3, heating the liquid storage tank 3 through a heating ring 7, and controlling the temperature of the liquid storage tank to be 80 ℃ so that the cyanate resin is molten in the liquid storage tank 3 to be in a liquid state;
step two, adding 15g of conductive carbon black and 1g of aluminum acetylacetonate into the liquid storage tank 3, and starting the stirrer 9 to stir until the materials are uniformly mixed;
step three, starting the ultrasonic generator 5, adjusting the ultrasonic power to 1500W, wherein the application time of each ultrasonic is 20min, the intermission time is 5min, the conductive filler is uniformly dispersed in the molten resin system under the action of the ultrasonic, and simultaneously, the vibration characteristic of the ultrasonic is used for removing bubbles in the molten resin system;
step four, opening the pressure reducing valve 2, controlling the pressure of the gas in the liquid storage tank 3 to be 0.8MPa, adjusting the oil output of the spray gun 6 to be 2 circles, and spraying after the distance between the spray gun 6 and the surface of the substrate is 30 cm; and after the spraying is finished, placing the mixture in an oven, and carrying out segmented curing, wherein the curing is carried out for 2h at 140 ℃, for 2h at 170 ℃ and for 2h at 200 ℃ to obtain the carbon black modified cyanate ester organic coating, as shown in fig. 2 and 3.
As can be seen from FIG. 3, the average pore size of the coating was about 0.88. mu.m.
The adhesion of the coating was tested by the cross-cut test according to GB/T6739-2006 standard, and the coating obtained in this example was rated 1.
Claims (10)
1. An ultrasonic auxiliary thermal spraying device mainly comprises a high-pressure nitrogen cylinder (1), a pressure reducing valve (2), a liquid storage tank (3), a spray gun (6), a stirrer (9) and a pressure gauge (10), wherein the stirrer (9) comprises a motor (13) and a stirring paddle (14); the device is characterized by also comprising a temperature controller (4), an ultrasonic generator (5), a heating ring (7) and a thermocouple (8);
the liquid storage tank (3) adopts a vertical double-layer structure and comprises an outer cylinder (302) and an inner cylinder (301) sleeved in the outer cylinder (302);
the top of the liquid storage tank (3) is provided with a charging hole (11) and a pressure gauge (10), the charging hole (11) is hermetically connected with an upper cover (12), a motor (13) is arranged on the upper cover (12), the motor (13) is in transmission connection with a stirring paddle (14), and the stirring paddle (14) is arranged in the inner cylinder (301);
ultrasonic generators (5) are symmetrically arranged at the bottom in the inner cylinder (301) on two sides of the stirring paddle;
heating rings (7) are arranged on the outer wall of the inner cylinder (301) along the circumferential direction and the outer bottom of the inner cylinder (301), and the heating rings (7) are connected with a power supply outside the liquid storage tank (3) through leads;
the high-pressure nitrogen cylinder (1) is connected with the inner cylinder (301) through a vent pipe (15), the air outlet of the vent pipe (15) is communicated with the inner cylinder (301), and the vent pipe (15) is provided with a pressure reducing valve (2);
the spray gun (6) is connected with the liquid storage tank (3) through a liquid suction pipe (16), and the lower end of the liquid suction pipe (16) is positioned at a position close to the bottom of the inner cavity of the inner barrel (301);
two thermocouples (8) are symmetrically arranged at two sides of the stirring paddle (14) in the inner cylinder (301), the thermocouples (8) are arranged below the liquid level of the liquid storage tank (3), and the thermocouples (8) are connected with a temperature controller (4) outside the liquid storage tank (3) through leads.
2. The apparatus according to claim 1, characterized in that the lance (6) is a pressure lance.
3. A method for spraying a coating by means of a device according to claim 1 or 2, characterized in that the method is carried out by the following steps:
step one, adding thermal spraying resin into a liquid storage tank (3), and heating the liquid storage tank (3) through a heating ring (7) to ensure that the thermal spraying resin is molten in the liquid storage tank (3) and becomes liquid;
secondly, adding functional filler and accelerant into the liquid storage tank (3), and starting a stirrer (9) to stir until the functional filler and the accelerant are uniformly mixed;
step three, starting an ultrasonic generator (5), adjusting the ultrasonic power, uniformly dispersing the functional filler in a molten resin system under the action of ultrasonic waves, and simultaneously removing bubbles in the molten resin system;
opening the pressure reducing valve (2), controlling the pressure of the gas in the liquid storage tank (3), adjusting the oil output of the spray gun (6) and the distance between the spray gun (6) and the surface of the substrate, and spraying; and after the spraying is finished, placing the coating in a drying oven, and carrying out segmented curing to obtain the functional filler modified resin coating.
4. The method of claim 3, wherein the thermal spray resin of step one is cyanate ester resin and the accelerator is aluminum acetylacetonate.
5. The method for spray coating according to claim 4, characterized in that the heating temperature of the liquid reservoir (3) in step one is controlled to 70 ℃ to 90 ℃.
6. The method for spraying a coating according to claim 4 or 5, wherein the functional filler in the second step is one or a mixture of several of conductive carbon black, graphene and carbon nanotubes, and the addition amount of the functional filler is 10-20% of the mass of the cyanate ester resin.
7. The method of claim 6, wherein the accelerator in step two is aluminum acetylacetonate, and the amount of aluminum acetylacetonate added is 0.5-2.5% by mass of the cyanate ester resin.
8. The method for spraying the coating according to claim 7, wherein the dispersion treatment is carried out by using intermittent ultrasound in the third step, the power of the ultrasound is 1000-2000W, the time of each application of the ultrasound is 10-20 min, and the intermittent time is 3-5 min.
9. The method of spraying a coating according to claim 8, wherein in the fourth step, the gas pressure in the liquid reservoir (3) is controlled to be 0.6MPa to 0.8MPa, the oil yield is controlled to be 1.5 turns to 2.5 turns, and the spray distance is 20cm to 30 cm.
10. The method for spraying the coating according to claim 9, wherein in the fourth step, the step of segmented curing comprises curing at 140-160 ℃ for 1-2 h, curing at 170-190 ℃ for 1-2 h, and curing at 200-220 ℃ for 1-2 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010941607.5A CN112206952B (en) | 2020-09-09 | 2020-09-09 | Ultrasonic-assisted thermal spraying device and preparation method of coating thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010941607.5A CN112206952B (en) | 2020-09-09 | 2020-09-09 | Ultrasonic-assisted thermal spraying device and preparation method of coating thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112206952A true CN112206952A (en) | 2021-01-12 |
| CN112206952B CN112206952B (en) | 2022-11-01 |
Family
ID=74050309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010941607.5A Active CN112206952B (en) | 2020-09-09 | 2020-09-09 | Ultrasonic-assisted thermal spraying device and preparation method of coating thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112206952B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202667050U (en) * | 2012-06-08 | 2013-01-16 | 中国石油集团川庆钻探工程有限公司 | High-pressure constant-temperature airless spraying coater |
| CN207655359U (en) * | 2017-12-18 | 2018-07-27 | 克雷伯氏环保科技（苏州）有限公司 | A kind of sprayer with sterilizing function |
| CN109382238A (en) * | 2018-10-31 | 2019-02-26 | 上海船舶工艺研究所(中国船舶工业集团公司第十研究所) | A kind of conveying device and application method for the highly viscous material of high solid |
| CN109395915A (en) * | 2018-10-11 | 2019-03-01 | 上海船舶工艺研究所(中国船舶工业集团公司第十研究所) | Conveying device for high-viscosity materials with low flowing property and using method |
| CN110283527A (en) * | 2019-06-27 | 2019-09-27 | 浙江儒商科技有限公司 | A kind of preparation method of the wear-resistant self-lubricating swash plate based on cyanate |
-
2020
- 2020-09-09 CN CN202010941607.5A patent/CN112206952B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202667050U (en) * | 2012-06-08 | 2013-01-16 | 中国石油集团川庆钻探工程有限公司 | High-pressure constant-temperature airless spraying coater |
| CN207655359U (en) * | 2017-12-18 | 2018-07-27 | 克雷伯氏环保科技（苏州）有限公司 | A kind of sprayer with sterilizing function |
| CN109395915A (en) * | 2018-10-11 | 2019-03-01 | 上海船舶工艺研究所(中国船舶工业集团公司第十研究所) | Conveying device for high-viscosity materials with low flowing property and using method |
| CN109382238A (en) * | 2018-10-31 | 2019-02-26 | 上海船舶工艺研究所(中国船舶工业集团公司第十研究所) | A kind of conveying device and application method for the highly viscous material of high solid |
| CN110283527A (en) * | 2019-06-27 | 2019-09-27 | 浙江儒商科技有限公司 | A kind of preparation method of the wear-resistant self-lubricating swash plate based on cyanate |
Non-Patent Citations (1)
| Title |
|---|
| 秦伟等: "超声处理对RTM成型复合材料界面性能的影响", 《复合材料学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112206952B (en) | 2022-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Thermal conductivity improvement of epoxy composite filled with expanded graphite | |
| CN111068997B (en) | Preparation method of coating for realizing super-hydrophobic property of condensing heat exchange tube and condensing heat exchange tube | |
| CN109536015A (en) | A kind of thermal protective coating and preparation method thereof | |
| CN101413209A (en) | Method for carbon fiber surface modification of plasma coated with nano colloidal sols by plasma treatment | |
| CN110938281B (en) | Modified carbon fiber reinforced phenolic resin matrix composite material and preparation thereof | |
| CN109354511B (en) | Graphite mold antioxidant impregnation liquid and preparation method and application thereof | |
| CN109796872A (en) | Organic siliconresin and the compound resistance to ablative coatings of ba phenolic resin and its application | |
| CN112206952B (en) | Ultrasonic-assisted thermal spraying device and preparation method of coating thereof | |
| CN113322037B (en) | Thermal-shock-resistant high-thermal-conductivity epoxy pouring sealant and preparation method thereof | |
| CN107955200B (en) | Graphene/organic matter composite particle and preparation method thereof | |
| CN103627101A (en) | Preparation method and applications of thermosetting phenolic resin coated hollow glass microspheres | |
| CN112812318A (en) | High-dielectric nano boron nitride modified epoxy resin composite material and preparation method thereof | |
| CN110698815B (en) | High-strength solid buoyancy material and preparation method thereof | |
| CN111393992A (en) | Super-hydrophobic coating and preparation method thereof | |
| CN113692392A (en) | Heat insulating material, engine comprising heat insulating material, nanoparticle dispersion liquid, and method for producing heat insulating material | |
| CN113026369B (en) | Ceramizable coating coated fiber and preparation method and application thereof | |
| Wang et al. | Robust superhydrophobic polyurea@ cellulose nanocrystal coating | |
| CN111509260A (en) | Method for improving stability of adhesive on frame surface of proton exchange membrane of fuel cell | |
| CN109868058A (en) | Asymmetric hollow zirconic acid lanthanum microballoon enhancing silicon rubber insulating moulding coating and its application | |
| CN114015198B (en) | Preparation method of intermediate-temperature curing prepreg epoxy resin with optimized process | |
| CN111349205A (en) | Fluoropolymer adhesive and method | |
| Fei et al. | Preliminary study on hybrid manufacturing of the electronic-mechanical integrated systems (EMIS) via the LCD stereolithography technology | |
| CN109663729A (en) | Solid-state insulated switchgear insulated case coats layer process | |
| CN114472002B (en) | Additive powder spraying device for rubber-coated dumbbell | |
| CN116102933A (en) | Super-hydrophobic ceramic plate coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Xiaohong Inventor after: Qin Wei Inventor after: Kang Hongjun Inventor after: Lu Songtao Inventor after: Li Yang Inventor after: Yao Yuan Inventor after: Fang Baodong Inventor after: Ma Jinpeng Inventor after: Zhao Huiyang Inventor before: Wu Xiaohong Inventor before: Qin Wei Inventor before: Kang Hongjun Inventor before: Lu Songtao Inventor before: Li Yang Inventor before: Yao Yuan |