CN110669429A - Spacecraft silicon rubber high polymer material protective coating and using method and device - Google Patents
Spacecraft silicon rubber high polymer material protective coating and using method and device Download PDFInfo
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- CN110669429A CN110669429A CN201910875662.6A CN201910875662A CN110669429A CN 110669429 A CN110669429 A CN 110669429A CN 201910875662 A CN201910875662 A CN 201910875662A CN 110669429 A CN110669429 A CN 110669429A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
-
- 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
-
- 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
- C09D7/65—Additives macromolecular
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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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
- C08L2205/20—Hollow spheres
Abstract
A spacecraft silicon rubber high polymer material protective coating, a using method and a device. The silicon rubber-containing hollow glass microsphere comprises 20-40 parts by weight of silicon rubber, 35-55 parts by weight of hollow glass microsphere, 15-35 parts by weight of hollow phenolphthalein microsphere, 6-9 parts by weight of curing agent, 7-10 parts by weight of solvent and 5-8 parts by weight of curing accelerator. The invention is used for protective coatings.
Description
The technical field is as follows:
the invention relates to a spacecraft silicon rubber high polymer material protective coating, and a using method and a device thereof.
Background art:
the aerospace electrical system has more potential faults due to the complexity, and the electrical safety problem is more serious. The insulating material plays a decisive role in the reliability and the service life of the motor, and the development of the insulating material is the reliable guarantee of continuous updating and high-quality production of space motors and electric products. In addition, the ethylene propylene diene monomer rubber is taken as a framework of the heat insulation coating which is widely applied at present, but the processing cost is high, the high temperature resistance is general, and a large amount of pollution gas can be generated in the ablation process of the ethylene propylene diene monomer rubber.
With the development of human beings to the outer space, the requirement on insulating materials is higher and higher, and the material selection and application research is developed in different directions. In order to improve the electrical safety performance of the spacecraft and adapt to the severe environment in the aerospace field, the spacecraft needs to be matched with an insulating material with special performance.
The invention content is as follows:
the invention aims to provide a spacecraft silicon rubber high polymer material protective coating with low thermal conductivity, low density and good mechanical property, and a using method and a device thereof.
The above purpose is realized by the following technical scheme:
the spacecraft silicon rubber high polymer material protective coating comprises 20-40 parts by weight of silicon rubber, 35-55 parts by weight of hollow glass microspheres, 15-35 parts by weight of hollow phenolphthalein microspheres, 6-9 parts by weight of curing agent, 7-10 parts by weight of solvent and 5-8 parts by weight of curing accelerator.
The spacecraft silicone rubber high polymer material protective coating comprises 30 parts by weight of silicone rubber, 45 parts by weight of hollow glass microspheres, 25 parts by weight of hollow phenolphthalein microspheres, 7 parts by weight of curing agent, 9 parts by weight of solvent and 6 parts by weight of curing accelerator.
The using method of the protective coating of the silicon rubber high polymer material for the spacecraft comprises ten steps, wherein the first step is production preparation, the second step is product protection, the third step is cabin body polishing, the fourth step is cabin body cleaning, the fifth step is primer spraying, the sixth step is primer drying, the seventh step is coating preparation, the eighth step is coating spraying, the ninth step is coating finishing, the tenth step is four-prevention paint spraying, and the eleventh step is overall curing.
The using device of the silicon rubber high polymer material protective coating of the spacecraft comprises a base plate, wherein an opening elastic ring is fixed on the base plate through screws, a through hole is formed in one side of the opening elastic ring, a group of creases are formed in the other side of the opening elastic ring, fixing holes are formed among the creases, the other side of the opening elastic ring is connected with a fixing rod, a cover cap is arranged at the top of the fixing rod, the fixing rod is located on the inner side of the creases, the opening elastic ring is fixed in the blank of an electric socket, the other side of the opening elastic ring penetrates through the through hole, the creases are reversely folded, the fixing rod and the cover cap penetrate through the fixing holes to be fixed, and the electric socket is connected with an angle grinder, a cleaning device and a paint sprayer through a lead, An air blower.
Spacecraft silicon rubber macromolecular material protective coating's operative installations, belt cleaning device include the cuboid container, the middle fixed connection partition panel of cuboid container, the partition panel will the cuboid container cut apart into left cavity and right cavity, left cavity in be equipped with the force pump, right cavity in be equipped with the suction pump, the force pump connect the spray pipe, the spray pipe connect the shower nozzle, the suction pump connect the suction pipe, the force pump with the suction pump all connect through the wire the electricity insert row.
Spacecraft silicon rubber macromolecular material protective coating's operative installations, the bottom plate open and to have the slot, the bottom of cuboid container insert the slot in, the bottom four angles of bottom plate all connect the universal runner that has the brake, wire connecting plug, the plug pass the locking mouth, the locking mouth open on the insulating rubber board, the both sides of insulating rubber board all through the fix with screw the bottom plate on, the insulating rubber board detain the electricity row of inserting on, the bottom plate connect the handle.
Has the advantages that:
1. the invention takes the burning-resistant and high-temperature-resistant silicon rubber as a framework film forming material and takes low-density heat insulation materials such as hollow glass microspheres, hollow phenolic balls and the like as main fillers to process, after a coating is formed, the coating can take away heat through a physical process and a chemical process at a high-speed and high-temperature state, and the low heat conduction characteristic of a hollow structure is utilized to block and slow down the transmission of external heat to the inside.
The invention has the advantages of low heat conductivity, low density and good mechanical property, can be applied to parts needing heat insulation processing, such as a fairing, an outer wall of a cabin section, an inner wall of the cabin section, a bottom shielding plate, a cable cover and the like, and has wide application range.
The invention has smooth and continuous appearance without seams and steps during spraying, convenient construction of complex profiles, simple and convenient process, reduced cost and improved mechanical property and physical property of the thermal protection coating.
The invention solves the problems of longer drying time, shorter service life, easy flocculation of pigment, easy shrinkage, sagging, orange peel and the like in the application process of the coating, and has very good use effect.
Description of the drawings:
fig. 1 is a schematic structural diagram of the product.
Fig. 2 is a schematic structural diagram of a fixing plug part of the product.
The specific implementation mode is as follows:
the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
Example 1:
the spacecraft silicon rubber high polymer material protective coating comprises 20-40 parts by weight of silicon rubber, 35-55 parts by weight of hollow glass microspheres, 15-35 parts by weight of hollow phenolphthalein microspheres, 6-9 parts by weight of curing agent, 7-10 parts by weight of solvent and 5-8 parts by weight of curing accelerator.
Adding a curing agent, a solvent and a curing accelerator into the scorching-resistant and high-temperature-resistant silicon rubber, the hollow glass microspheres and the hollow phenolphthalein microspheres, adjusting the viscosity to the required viscosity, filtering and packaging to obtain the high-temperature-resistant insulating organic silicon coating.
Heating the burning-resistant and high-temperature-resistant silicon rubber to a flowable sticky state, sequentially adding the hollow glass microspheres and the hollow phenolphthalein microspheres, and homogenizing and stirring the mixture under the heat preservation state to obtain the silicon rubber.
The curing agent HDI biuret polyiso acid snore contains hydrogen bonds to attract each other, has high viscosity, and is not easy to prepare a high-solid-content product; thus, 100% solids HDI trimer is the best choice.
Solvent(s)
According to the actual construction requirement, a suitable solvent consisting of methyl n-amyl ketone and methyl isobutyl ketone can be adopted, and the mixing ratio is 3:1 (mass-volume ratio). The mixed solvent has the characteristics of strong dissolving power, low surface tension, low and stable volatilization speed, low mass-volume ratio, low toxicity and the like, and is the best choice for high-solid aviation coatings.
Curing accelerator
The non-tin metal compound is used as a curing accelerator, the special compound with the volatilization characteristic is used as an inhibitor, and after the paint is prepared, AA exists in the paint and can hinder the generation of an intermediate product with high catalytic activity, so that the curing reaction rate of the system is reduced, and the service life of the system is prolonged; in the drying process of the coating, AA begins to volatilize along with the solvent, the generation process of the intermediate product with high catalytic activity is not inhibited by AA, the curing reaction rate of the system is greatly improved, and thus the coating obtains good drying performance.
Example 2:
the spacecraft silicone rubber high polymer material protective coating provided by embodiment 1 is prepared by using 30 parts by weight of silicone rubber, 45 parts by weight of hollow glass microspheres, 25 parts by weight of hollow phenolphthalein microspheres, 7 parts by weight of curing agent, 9 parts by weight of solvent and 6 parts by weight of curing accelerator.
Example 3:
the spacecraft silicone rubber high polymer material protective coating provided by embodiment 1 is prepared by using 20 parts by weight of silicone rubber, 35 parts by weight of hollow glass microspheres, 15 parts by weight of hollow phenolphthalein microspheres, 6 parts by weight of curing agent, 7 parts by weight of solvent and 5 parts by weight of curing accelerator.
Example 4:
the spacecraft silicone rubber high polymer material protective coating provided by embodiment 1 is prepared by using 40 parts by weight of silicone rubber, 55 parts by weight of hollow glass microspheres, 35 parts by weight of hollow phenolphthalein microspheres, 9 parts by weight of curing agent, 10 parts by weight of solvent and 8 parts by weight of curing accelerator.
Example 5:
the application method of the spacecraft silicone rubber high polymer material protective coating in the embodiment 1 is characterized by comprising the following ten steps of preparation in a first step, product protection in a second step, cabin polishing in a third step, cabin cleaning in a fourth step, primer spraying in a fifth step, primer drying in a sixth step, paint preparation in a seventh step, paint spraying in an eighth step, coating finishing in a ninth step, paint spraying in a tenth step and overall curing in an eleventh step.
Firstly, protecting a cabin section needing to be sprayed with a thermal protection layer, then polishing and cleaning the cabin body, spraying a primer to the cabin body after polishing and cleaning, spraying the thermal protection coating on the cabin body after the primer is dried, finishing uneven and unsmooth places after the thermal protection coating is dried, and finally integrally curing to finish spraying.
The high temperature resistance level of the product reaches the domestic advanced level: coating 2.5mm of coating on 2.5mm aluminum plate, heating at 800 deg.C under 300Pa for 60s to obtain coated substrate bonding surface with temperature no more than 800 deg.C.
The burning resistance of the product reaches the domestic advanced level: under the conditions of 800 degrees and 300Pa, the linear ablation speed is less than 0.02 mm/s.
The spraying process is smooth and continuous in appearance, free of seams and steps, convenient to construct due to the complex profile and simple in process.
The heat conductivity and the thermal diffusivity are relatively low, and the heat-proof and heat-insulating performance of the material with the same thickness and the same surface density is good in the medium-low heat flow environment.
Example 6:
the using device of the silicon rubber high polymer material protective coating of the spacecraft comprises a base plate 1, wherein an opening elastic ring 2 is fixed on the base plate through screws, one side of the opening elastic ring is provided with a through hole 3, the other side of the opening elastic ring is provided with a group of creases 4, fixing holes 5 are formed among the creases, the other side of the opening elastic ring is connected with a fixing rod 6, the top of the fixing rod is provided with a cover cap 7, the fixing rod is positioned on the inner side of the creases, the opening elastic ring is fixed at the blank of an electric socket 8, the other side of the opening elastic ring penetrates through the through hole, the creases are reversely folded, the fixing rod and the cover cap penetrate through the fixing holes to be fixed, the electric socket is connected with an angle grinder 9 through a lead, and the electric socket is fixed through a lead wire, Cleaning device, paint sprayer 10, blower 11.
The angle grinder, the paint sprayer and the blower are all purchased products.
The opening elastic ring can firmly fix the electric socket and ensure that the electric socket is very firm and safe when in use. The fixed position of opening elastic ring can be selected as required, and the row is inserted to the electricity that can fix the variation in size, uses in a flexible way, excellent in use effect.
Example 7:
The rectangular container, the pressure pump spray head, the water suction pump and the water suction pipe can spray water to clean the cabin body and suck away sewage, and the operation process is clean and tidy and the using process effect is good.
Example 8:
The insulating rubber plate can firmly fix the connection of plug and electric mortiser row, can not appear the phenomenon of outage when using angle mill, belt cleaning device, paint spraying machine, hair-dryer, and work is smooth, and the result of use is very good.
The angle grinder, the cleaning device, the paint sprayer and the blower are operated in sequence according to the steps of the using method of the spacecraft silicon rubber high polymer material protective coating.
And the third step of cabin body polishing is performed by using an angle grinder, the fourth step of cabin body cleaning is performed by using a cleaning device, the fifth step of spraying the primer is performed by using a paint sprayer, the sixth step of primer drying is performed by using a blower, the eighth step of paint spraying is performed by using a paint sprayer, the ninth step of coating finishing is performed by using an angle grinder, and the tenth step of four-prevention paint spraying is performed by using a paint sprayer.
Claims (6)
1. The spacecraft silicon rubber high polymer material protective coating comprises 20-40 parts by weight of silicon rubber, 35-55 parts by weight of hollow glass microspheres, 15-35 parts by weight of hollow phenolphthalein microspheres, 6-9 parts by weight of curing agent, 7-10 parts by weight of solvent and 5-8 parts by weight of curing accelerator.
2. The spacecraft silicone rubber high polymer material protective coating of claim 1, wherein the silicone rubber is 30 parts by weight, the hollow glass microspheres are 45 parts by weight, the hollow phenolphthalein microspheres are 25 parts by weight, the curing agent is 7 parts by weight, the solvent is 9 parts by weight, and the curing accelerator is 6 parts by weight.
3. The using method of the spacecraft silicone rubber high polymer material protective coating according to claim 1, characterized in that the using method comprises eleven steps, the first step of production preparation, the second step of product protection, the third step of cabin body polishing, the fourth step of cabin body cleaning, the fifth step of primer spraying, the sixth step of primer drying, the seventh step of paint preparation, the eighth step of paint spraying, the ninth step of coating finishing, the tenth step of four-prevention paint spraying, and the eleventh step of integral curing.
4. The using device of the silicon rubber high polymer material protective coating of the spacecraft comprises a bottom plate and is characterized in that an open elastic ring is fixed on the bottom plate and fixed on the bottom plate through screws, a through hole is formed in one side of the open elastic ring, a group of creases are formed in the other side of the open elastic ring, fixing holes are formed among the creases, the other side of the open elastic ring is connected with a fixing rod, a cover cap is arranged at the top of the fixing rod, the fixing rod is located on the inner side of the creases, the open elastic ring is fixed in the blank of an electric socket, the other side of the open elastic ring penetrates through the through hole, the creases are reversely folded, the fixing rod and the cover cap penetrate through the fixing holes to be fixed, and the electric socket is connected with an angle grinder, a wire is connected with the electric socket, and a wire is connected with the electric socket through the fixing holes, Cleaning device, paint spraying machine, hair-dryer.
5. The using device of the spacecraft silicone rubber high polymer material protective coating according to claim 4, wherein the cleaning device comprises a cuboid container, a partition plate is fixedly connected to the middle of the cuboid container, the partition plate divides the cuboid container into a left cavity and a right cavity, a pressure pump is arranged in the left cavity, a water suction pump is arranged in the right cavity, the pressure pump is connected with a water spray pipe, the water spray pipe is connected with a spray head, the water suction pump is connected with a water suction pipe, and the pressure pump and the water suction pump are both connected with the electric socket through wires.
6. The using device of the spacecraft silicone rubber high polymer material protective coating according to claim 4, wherein the bottom plate is provided with a slot, the bottom of the cuboid container is inserted into the slot, four corners of the bottom plate are connected with universal rotating wheels with brakes, the wire is connected with a plug, the plug passes through a locking port, the locking port is opened on an insulating rubber plate, two sides of the insulating rubber plate are fixed on the bottom plate through screws, the insulating rubber plate is buckled on the electric socket, and the bottom plate is connected with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875662.6A CN110669429A (en) | 2019-09-17 | 2019-09-17 | Spacecraft silicon rubber high polymer material protective coating and using method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875662.6A CN110669429A (en) | 2019-09-17 | 2019-09-17 | Spacecraft silicon rubber high polymer material protective coating and using method and device |
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| CN110669429A true CN110669429A (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910875662.6A Pending CN110669429A (en) | 2019-09-17 | 2019-09-17 | Spacecraft silicon rubber high polymer material protective coating and using method and device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108166731A (en) * | 2018-02-27 | 2018-06-15 | 湖州加诚舒适家工程设备有限公司 | A kind of building wall spray robot |
| CN108889485A (en) * | 2018-08-31 | 2018-11-27 | 拓暄建设科技有限公司 | A kind of auto spray painting device |
| CN109161331A (en) * | 2018-07-27 | 2019-01-08 | 上海交通大学 | The resistance to ablative coatings of ceramic screw fiber reinforcement silicon rubber lightweight and its application |
| CN109536015A (en) * | 2018-11-06 | 2019-03-29 | 航天材料及工艺研究所 | A kind of thermal protective coating and preparation method thereof |
| CN109868058A (en) * | 2019-01-11 | 2019-06-11 | 上海交通大学 | Asymmetric hollow zirconic acid lanthanum microballoon enhancing silicon rubber insulating moulding coating and its application |
| CN210945453U (en) * | 2019-09-17 | 2020-07-07 | 天津市航亚科技有限公司 | Device for using silicon rubber high polymer material protective coating of spacecraft |
-
2019
- 2019-09-17 CN CN201910875662.6A patent/CN110669429A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107760194A (en) * | 2017-10-12 | 2018-03-06 | 上海航天精密机械研究所 | A kind of anti-heat insulating coat of silicon rubber base and preparation method thereof |
| CN108166731A (en) * | 2018-02-27 | 2018-06-15 | 湖州加诚舒适家工程设备有限公司 | A kind of building wall spray robot |
| CN109161331A (en) * | 2018-07-27 | 2019-01-08 | 上海交通大学 | The resistance to ablative coatings of ceramic screw fiber reinforcement silicon rubber lightweight and its application |
| CN108889485A (en) * | 2018-08-31 | 2018-11-27 | 拓暄建设科技有限公司 | A kind of auto spray painting device |
| CN109536015A (en) * | 2018-11-06 | 2019-03-29 | 航天材料及工艺研究所 | A kind of thermal protective coating and preparation method thereof |
| CN109868058A (en) * | 2019-01-11 | 2019-06-11 | 上海交通大学 | Asymmetric hollow zirconic acid lanthanum microballoon enhancing silicon rubber insulating moulding coating and its application |
| CN210945453U (en) * | 2019-09-17 | 2020-07-07 | 天津市航亚科技有限公司 | Device for using silicon rubber high polymer material protective coating of spacecraft |
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