CN106481932A - Wave transparent type multilayer insulation material structure and preparation method - Google Patents
Wave transparent type multilayer insulation material structure and preparation method Download PDFInfo
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- CN106481932A CN106481932A CN201610815974.4A CN201610815974A CN106481932A CN 106481932 A CN106481932 A CN 106481932A CN 201610815974 A CN201610815974 A CN 201610815974A CN 106481932 A CN106481932 A CN 106481932A
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- Prior art keywords
- wave transparent
- external coating
- radiation shield
- insulation material
- multilayer insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a kind of wave transparent type multilayer insulation material structure and preparation method, including radiation shield (1), wall (2), external coating (3)；Individual layer radiation shield and single-layer interval constitute an insulating unit, and N number of insulating unit is arranged in order, 2≤N≤30；The outside of outermost insulating unit is provided with one layer of external coating.The present invention is not on the premise of multilayer insulation material heat-proof quality is weakened so as to possess electromagnetic wave wave transparent performance.The polyimides plating germanium film has radio frequency dual-use function that is transparent and eliminating electrostatic concurrently, and heat radiation transmitance is less than 0.2.
Description
Technical field
The present invention relates to spacecraft Evolution of Thermal Control Technique field, in particular it relates to wave transparent type multilayer insulation material structure and system
Preparation Method.
Background technology
As the raising of the performance of spacecraft, function become increasingly complex, stand-alone device is just necessarily increased, and is set for unit
The difficulty of standby layout is also being increased.Electromagnetic transmission unit in part has been distributed in cabin at present, and for electromagnetic transmission list
In the case that machine is distributed in cabin, the transmission attenuation problem of electromagnetic wave is increasingly highlighted.For there is effect spread electromagnetic wave, need to open in nacelle
Transmission mouth, but transmission mouth can cause to leak heat in cabin again, and impact aerial mission is normally carried out.
Multilayer insulation material due to fabulous heat-proof quality, along with very light weight, be convenient to mount and dismount, without dust and
The features such as surrounding environment will not being polluted, it has also become one of most basic means of spacecraft passive thermal control, extensive
It is applied to coat the outer surface of spacecraft module external structure and equipment, including propellant tank, propulsion pipeline, nacelle outer wall etc..Make
For structure out of my cabin and the external coating of equipment, multilayer insulation material is the first choice of anti-leak-stopping heat.And face electromagnetic transmission
During mouth problem, with respect to other thermal control solutions, it is easiest to realize using the design of the multilayer with wave transparent performance,
Without the layout of modification aircraft, structure etc..
At present country's spacecraft uses common multilayer insulation material, the major function of common multilayer insulation material be every
Heat, the function that in addition multilayer of part special applications has are mainly concerned with resistance to micrometeor shock, elemental oxygen and invade in addition to heat-insulated
Erosion, charged particle charge accumulated and rocket engine tail impact etc., but not yet consider the wave transparent performance of electromagnetic wave.
Content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of wave transparent type multilayer insulation material structure and system
Preparation Method.Present invention reduces the limitation of electromagnetic transmission device layout, flies when solving layout in electromagnetic wave device cabin
The heat-insulated and electromagnetic transmission problem of device.
According to a kind of wave transparent type multilayer insulation material structure that the present invention is provided, including radiation shield, wall, outer cladding
Layer；
Individual layer radiation shield and single-layer interval constitute an insulating unit, and N number of insulating unit is arranged in order, 2≤N≤30；
The outside of outermost insulating unit is provided with one layer of external coating.
Preferably, the radiation shield is biaxial tension Kapton, and thickness is 25 μm；The wall is nonmetallic
Web materials, thickness are 10～20 μm；The external coating is polyimides germanium film, and thickness is 25 μm, saturating for heat radiation
Rate is crossed less than 0.2.
Preferably, the wall is terylene silk net, specification 20D, 4 hole/cm of reticular density2, the braiding of full reeled yarn.
The preparation method of a kind of above-mentioned wave transparent type multilayer insulation material structure provided according to the present invention, including：
External coating Cut out step：The electromagnetic wave transparent material for making external coating is coated with plane cutting machine table, is made
Wave material keeps nature smooth, it is to avoid stretcher strain produces fold；Cutting is carried out to electromagnetic wave transparent material using scissors or cut-off knife, cut out
Open position and must not produce horizontal cut；During cutting, disposable severing electromagnetic wave transparent material；
Radiation shield cutting step：The Kapton for making external coating is coated with plane cutting machine table, is made
Kapton keeps nature smooth, it is to avoid stretcher strain produces fold；Using scissors or cut-off knife to Kapton
Cutting is carried out, is cut apart with a knife or scissors position and must not produce horizontal cut；During cutting, disposable severing Kapton；
It is coated with and sewing step：Radiation shield, wall and external coating are overlapped, with flame retardant wire or terylene sewer；
Guarantee that radiation shield, external coating are naturally smooth during overlapping, sewing, it is to avoid stretcher strain or constricted fold.
Compared with prior art, the present invention has following beneficial effect：
The present invention is not on the premise of multilayer insulation material heat-proof quality is weakened so as to possess electromagnetic wave wave transparent performance.
The polyimides plating germanium film has radio frequency dual-use function that is transparent and eliminating electrostatic concurrently, and heat radiation transmitance is less than 0.2.Logical
The wave transparent performance test for crossing electromagnetic wave shows：When wave transparent mouth does not install wave transparent multilayer insulation component, frequency spectrograph reception level-
86dBm, installs level -107dBm after wave transparent multilayer insulation component, and electromagnetic wave cuts down only 21dBm.In 15 unit wave transparent multilayer lists
In the case of unit, vacuum environment (10-5Pa the effect of heat insulation under)：Multilayer face out space (temperature be 100k) side temperature for-
173 DEG C, towards in cabin, side temperature is 20 DEG C, and effect of heat insulation is good.
Description of the drawings
The detailed description that non-limiting example is made with reference to the following drawings by reading, the further feature of the present invention,
Objects and advantages will become more apparent upon：
The structural representation of the wave transparent type multilayer insulation material structure that Fig. 1 is provided for the present invention.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some changes and improvements can also be made.These belong to the present invention
Protection domain.
The present invention relates to a kind of wave transparent type multilayer insulation material structure, belongs to spacecraft Evolution of Thermal Control Technique field.Described
Wave transparent type multilayer insulation material structure includes radiation shield, interval insulant, external coating.Wherein individual layer radiation shield and individual layer separating material
Material one insulating unit of composition, N number of insulating unit is arranged in order, be followed successively by Unit 1, Unit 2 ... N unit, 2≤N≤30；
External coating is coated in outermost layer, external coating adopts wave material.The radiation shield adopts polyimide film material, thoroughly
Ripple is stronger；The electromagnetic wave transparent material adopted by the external coating be polyimides plating germanium film material, transmitance be less than 0.2, and
Have radio frequency dual-use function that is transparent and eliminating electrostatic concurrently, the number of plies is 1 layer.By by the radiation shield of common multilayer insulation material and
External coating is changed to wave material, on the premise of original multilayer insulation material heat-proof quality is not reduced, improve multilayer every
The wave transparent ability of hot material.
More specifically, a kind of wave transparent type multilayer insulation material structure as shown in Figure 1, the wave transparent type multilayer insulation material
Material structure includes radiation shield 1, wall 2, external coating 3.Wherein individual layer radiation shield 1 and single-layer interval 2 constitute a unit,
15 units are arranged in order, be successively first module, second unit ... Unit the 15th；One layer is coated on the outside of Unit the 15th
Outsourcing overlay film 3.
The radiation shield 1 adopts Kapton, and thickness is 25 μm.
The wall 2 adopts 20dPolyamide fibre silk screen, thickness are 10 μm, and mesh density is 4/cm2.
The external coating 3 is made up of wave material, and electromagnetic wave transparent material is using in the polyimides plating germanium film of plating germanium
H type film, with the function that radio frequency is transparent, the transmitance to visible ray is 0.14, and the transmitance to infrared waves is 0.13；Simultaneously
There is the function of eliminating electrostatic.
Wherein, the preparation process of wave transparent type multilayer insulation material structure is as follows：
Manufacture wave transparent type multilayer insulation material structure need to experience the cutting out of external coating 3, the cutting out and wave transparent of radiation shield 1
Type multilayer insulation material structure is coated with and sews two steps.
Step one, the cutting out of external coating 3
A. the electromagnetic wave transparent material of external coating 3 is coated with plane cutting machine table so as to keep nature smooth, it is to avoid draw
Stretch deformation or produce fold；
B. using scissors or cut-off knife cutting, cut apart with a knife or scissors position and must not produce horizontal cut.During cutting, disposable severing wave transparent is answered
Material, it is to avoid produce compared with multifibres hair.
Step 2, the cutting of radiation shield 1
Radiation shield 1 is Kapton, carries out cutting using with electromagnetic wave transparent material cutting identical method.
Step 3, being coated with and sewing of wave transparent type multilayer insulation material structure
The common process that radiation shield 1, wall 2 and external coating 3 are coated with using multilayer insulation material and sew, will be many
Layer material is overlapped, with flame retardant wire or terylene sewer.Guarantee to be coated with, overlap, sew during radiation shield 2, external coating 3 need from
So smooth, it is to avoid stretcher strain or constricted fold.
The present invention is shown by the wave transparent performance test of electromagnetic wave：When wave transparent mouth does not install wave transparent multilayer insulation component, frequently
Spectrometer receives level -86dBm, installs level -107dBm after wave transparent multilayer insulation component, and electromagnetic wave cuts down only 21dBm.Single 15
In the case of first wave transparent multilevel-cell, vacuum environment (10-5Pa the effect of heat insulation under)：Multilayer faces out space (temperature is 100k)
Side temperature is -173 DEG C, and towards in cabin, side temperature is 20 DEG C, and effect of heat insulation is good.
Specific embodiment to the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or change, this not shadow
Ring the flesh and blood of the present invention.In the case of not conflicting, feature in embodiments herein and embodiment can any phase
Mutually combine.
Claims (4)
1. a kind of wave transparent type multilayer insulation material structure, it is characterised in that including radiation shield (1), wall (2), external coating
(3)；
Individual layer radiation shield and single-layer interval constitute an insulating unit, and N number of insulating unit is arranged in order, 2≤N≤30；Outermost
The outside of the insulating unit of layer is provided with one layer of external coating.
2. wave transparent type multilayer insulation material structure according to claim 1, it is characterised in that the radiation shield is two-way drawing
Kapton is stretched, thickness is 25 μm；The wall is nonmetallic Web materials, and thickness is 10～20 μm；The outsourcing
Coating is polyimides germanium film, and thickness is 25 μm, is less than 0.2 for heat radiation transmitance.
3. wave transparent type multilayer insulation material structure according to claim 1, it is characterised in that the wall is dacron thread
Net, specification 20D, 4 hole/cm of reticular density2, the braiding of full reeled yarn.
4. the preparation method of the wave transparent type multilayer insulation material structure any one of a kind of claims 1 to 3, its feature exist
In, including：
External coating Cut out step：The electromagnetic wave transparent material for making external coating is coated with plane cutting machine table, makes wave transparent material
Material keeps nature smooth, it is to avoid stretcher strain produces fold；Cutting is carried out to electromagnetic wave transparent material using scissors or cut-off knife, cut apart with a knife or scissors portion
Position must not produce horizontal cut；During cutting, disposable severing electromagnetic wave transparent material；
Radiation shield cutting step：The Kapton for making external coating is coated with plane cutting machine table, makes polyamides
Imines film keeps nature smooth, it is to avoid stretcher strain produces fold；Kapton is carried out using scissors or cut-off knife
Cutting, cuts apart with a knife or scissors position and must not produce horizontal cut；During cutting, disposable severing Kapton；
It is coated with and sewing step：Radiation shield, wall and external coating are overlapped, with flame retardant wire or terylene sewer；Overlapping,
Guarantee during sewing that radiation shield, external coating are naturally smooth, it is to avoid stretcher strain or constricted fold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815974.4A CN106481932A (en) | 2016-09-08 | 2016-09-08 | Wave transparent type multilayer insulation material structure and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815974.4A CN106481932A (en) | 2016-09-08 | 2016-09-08 | Wave transparent type multilayer insulation material structure and preparation method |
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| CN106481932A true CN106481932A (en) | 2017-03-08 |
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| CN201610815974.4A Pending CN106481932A (en) | 2016-09-08 | 2016-09-08 | Wave transparent type multilayer insulation material structure and preparation method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648971A (en) * | 2019-01-09 | 2019-04-19 | 上海卫星工程研究所 | A kind of space heat controlled thin film |
| CN110262528A (en) * | 2019-05-30 | 2019-09-20 | 北京空间飞行器总体设计部 | Take off-landing-of a kind of month surface detector moves implementation method |
| CN111063977A (en) * | 2019-11-13 | 2020-04-24 | 西安空间无线电技术研究所 | Wave-transparent multilayer heat insulation structure for realizing thermal control of spacecraft antenna |
| CN112693637A (en) * | 2020-12-30 | 2021-04-23 | 深圳航天东方红卫星有限公司 | Thermal control method of hollow frame spacecraft |
| CN114487748A (en) * | 2022-01-19 | 2022-05-13 | 北京航空航天大学 | Method for heat shielding of probe assembly |
| CN114735243A (en) * | 2022-05-16 | 2022-07-12 | 北京卫星环境工程研究所 | Multi-layer heat insulation assembly of spacecraft with unbreakable carrying and launching active section |
| CN116365327A (en) * | 2023-06-01 | 2023-06-30 | 天津航天机电设备研究所 | Grounding process of large flexible film light shield |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648971A (en) * | 2019-01-09 | 2019-04-19 | 上海卫星工程研究所 | A kind of space heat controlled thin film |
| CN110262528A (en) * | 2019-05-30 | 2019-09-20 | 北京空间飞行器总体设计部 | Take off-landing-of a kind of month surface detector moves implementation method |
| CN110262528B (en) * | 2019-05-30 | 2022-07-29 | 北京空间飞行器总体设计部 | Takeoff-landing-movement implementation method of lunar surface detector |
| CN111063977A (en) * | 2019-11-13 | 2020-04-24 | 西安空间无线电技术研究所 | Wave-transparent multilayer heat insulation structure for realizing thermal control of spacecraft antenna |
| CN112693637A (en) * | 2020-12-30 | 2021-04-23 | 深圳航天东方红卫星有限公司 | Thermal control method of hollow frame spacecraft |
| CN112693637B (en) * | 2020-12-30 | 2022-04-22 | 深圳航天东方红卫星有限公司 | Thermal control method of hollow frame spacecraft |
| CN114487748A (en) * | 2022-01-19 | 2022-05-13 | 北京航空航天大学 | Method for heat shielding of probe assembly |
| CN114735243A (en) * | 2022-05-16 | 2022-07-12 | 北京卫星环境工程研究所 | Multi-layer heat insulation assembly of spacecraft with unbreakable carrying and launching active section |
| CN116365327A (en) * | 2023-06-01 | 2023-06-30 | 天津航天机电设备研究所 | Grounding process of large flexible film light shield |
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Application publication date: 20170308 |
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