CN103073370A - Nitrine type high-molecular sensitized high-energy ablator, preparation method thereof and target belt made from ablator - Google Patents
Nitrine type high-molecular sensitized high-energy ablator, preparation method thereof and target belt made from ablator Download PDFInfo
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Abstract
The invention provides a nitrine type high-molecular sensitized high-energy ablator which comprises the components by weight part: 5 to 80 parts of nitrine type material, 5 to 70 parts of high energy material and 5 to 15 parts of additive. The invention also provides a preparation method of the ablator and a target belt made from the ablator. According to the invention, an ablative material layer made via the method utilizes the viscous characteristic of the nitrine type high-molecular sensitized high-energy material, integrates the energy of the nitrine type material and the high energy material, and has the advantages of low ablative threshold value, high energy content and viscosity; and the cohesive property between a substrate and the ablator meets the use requirement, and the utilization rate of the laser energy can also meet the use requirement.
Description
Technical field
The invention belongs to the Trend of Laser Propulsion Technology field, be specifically related to a kind of nitrine family macromolecule sensitization type high energy ablator and preparation method thereof and with the target band of its preparation.
Background technology
The little Push Technology of laser can realize that attitude control and the track of moonlet keep, have that the momentum bit is little, mass of system is light, the thrust variable range is wide, without advantages such as nozzle arrangements, operating mode adopts transmission-type more, and little propelling field has irreplaceable status in the space.Because the restriction of moonlet aspect weight and energy, the laser apparatus of necessary use smaller power (〉=1W), the wavelength of laser apparatus emission the near infrared section (930 ~ 980nm), the burst length is 100 μ s ~ 200ms, the macromolecular material of long pulse is time qualified ablator is necessary for low heat conductivity.The at present little propelling of laser is comprised of substrate and ablation layer with target material, for guaranteeing the work-ing life of thruster, target material must have certain length (tens centimetres to hundreds of rice), width (several centimetres), thickness (several microns to the hundreds of micron) and amount of deflection (can be wrapped on the roller), and ablation layer and substrate will bond firmly.
Different polymer substances is when laser ablation, the specific impulse, impulse coupling coefficient, the energy transformation ratio that produce have than big difference, select the material of high specific impulse can satisfy the needs that the little propelling attitude of laser is controlled, the material of heavy impulse percentage coupling can satisfy the needs that attitude keeps.Whether contain energy according to working medium, ablation working medium can be divided into inertia working medium and contain can working medium.According to energy conservation, the ablation efficiency of inertia working medium can not surpass 100%, if but laser energy can be induced the decomposition reaction that contains energy working medium, and the utilising efficiency of laser energy can break through 100% under the acting in conjunction of laser energy and chemical energy.PVC is best inert media, and its maximum thrust percentage coupling can reach 19dyn/W, and maximum specific impulse can reach 1800s, and ablation efficient is 49%.PVC can satisfy the service requirements of SAT-21 type moonlet and be easy to preparation, but its capacity usage ratio is low, aircraft need carry a large amount of working medium has increased weight of equipment, existing the excessive problem of discharge quantity in the use procedure continuously, and the spread angle of the splash product of carbon containing is spent greatly.Owing to being subject to the restriction of microthruster weight, the power of laser apparatus and the working medium quality of carrying all are restricted, so reduce the ablation threshold of working medium, improve ablation efficiency imperative.
The design of the target band of laser micro-thruster generally is divided into reflective and two kinds of transmission-types, laser produces thrust by the working medium at the transparent substrates ablation back side of ablation threshold in the transmission-type situation, with reflective compare to have can avoid optical lens to pollute and light path is easy to build two large outstanding advantages, present research mainly concentrates on transmission-type.The binding mode of transmission-type has determined that the target band is divided into substrate and ablation layer is two-layer.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of ablation threshold low, can satisfy the little promotion energy demand of laser, the ablator that ablation layer and substrate can fine bondings.
Another object of the present invention is to provide a kind of method for preparing nitrine family macromolecule sensitization type high energy ablator.
An also purpose of the present invention provides the target band of the above-mentioned ablator preparation of a kind of usefulness.
In order to realize purpose of the present invention, technical scheme of the present invention is as follows:
A kind of nitrine family macromolecule sensitization type high energy ablator comprises the composition of following weight part:
Nitrine class material 5-80 part,
High energy material 5-70 part,
Additive 5-15 part.
Wherein, described nitrine class material be contain containing of nitrine class photosensitive group can material, such as glycidyl azide polymer (GAP), 3,3-two azido-methyl oxa-fourth rings (BAMO) etc.Because nitrine class material contains photosensitive group, better to Optical Absorption, can reduce ablation threshold, and azido-contain can, in ablation process, can decompose and release energy.In laser and ablation layer mechanism, at first excite the lower nitrine class material of ablation threshold, the energy part that nitrine class material breakdown discharges forms the high temperature air mass, regurgitate generation thrust, another part energy by thermal conduction bring out high energy material than insensitiveness high contain can material decomposition, thereby greatly improved the utilization ratio of laser energy.Because the light sensitive characteristic of nitrine class material, nitrine class material can replace or the Partial Replacement light absorber, increases that contain can component shared ratio in total prescription, and can avoid the problems such as the consistency of the light absorber such as nano-sized carbon and reunion.Simultaneously, high energy material has certain viscosity, can improve the cohesiveness of ablation layer and substrate, and high energy material can improve and the cohesiveness of substrate greatly by crosslinking reaction or intermolecular forces, hydrogen bond etc., the phenomenon such as avoid coming unstuck.
High energy material of the present invention is the energetic material with high-energy-density, and the decomposition caused heat release of high energy material can improve the utilising efficiency of laser energy.The equal sensitivity of the high energy material of selecting simultaneously is lower, the security of the storage that having guaranteed ablates is with, transportation, emission.High energy material and the nitrine class material selected must have good consistency, can coexist with nitrine class material.Preferably, described high energy material is single-base powder, double-base powder, PMMA, hexogen, hexanitro-Di, octogen, polyvinyl alcohol nitric ether etc.
Additive of the present invention mainly comprises light absorber, solidifying agent, catalyzer, flow agent, defoamer, stablizer etc.Described light absorber mainly contains nano level carbon dust, micron order carbon dust and liquid infrared absorbing agents etc., the liquid infrared absorbing agents is mainly Exciton IRA980 etc., the adding of light absorber can improve the absorptivity of polymer energy supply material for laser light, improve ablation efficiency, physisorption is improved in the space that the small-particle materials such as nano-sized carbon can also be filled up between the segment.Solidifying agent is mainly used in the crosslinking reaction of part binding agent, makes the liquid ingredient crosslinking curing.Solidifying agent commonly used has hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), 4,4 '-diphenylmethanediisocyanate etc.Catalyzer mainly is the material that adds for accelerating curing speed, mainly contains dibutyl tin laurate (DBTDL), stannous octoate, methyl diethyl acid amide etc.Flow agent is the material that can improve the wet film flowability, the Main Function of flow agent is the surface tension that reduces between blending ingredients, increase flowability, make the surface reach smooth, smooth, thereby obtain the fine and close ablation layer of the surface imperfection such as free of pinholes, shrinkage cavity, brush mark and orange peel.Flow agent mainly is cellulose acetate butyrate (CAB), the CAB381-0.1 of EASTMAN company for example, CAB551-0.01, CAB381-20 etc.Because mechanical-physical factors such as the introducing of Cucumber and stirrings, solution tends to produce foam, can prevent that the material of foam is called defoamer, perhaps is called kilfoam and foam preventer.Defoamer mainly contains BYK-141, Pernol E1 etc.Stablizer mainly is the material that adds that requires for particular surroundingss such as the severe radiation of satisfying the outer space, high temperature, vacuum, such as ultraviolet absorbers, oxidation inhibitor etc., the oxidation inhibitor such as ultraviolet absorbers such as 2-hydroxyl-4 methoxy benzophenone (UV-9), TINUVIN328 and TINUVIN292.
Further, the present invention also provides the preparation method of described nitrine class sensitization type high energy ablator, and it comprises the steps:
(1) prepares in proportion nitrine class material, high energy material and additive, and use respectively dissolution with solvents, get nitrine class material solution, high energy material solution and additive solution;
(2) in proportion step (1) gained nitrine class material solution is mixed with high energy material solution, and stir;
(3) for the material of chemical seasoning, to step (2) gained mixed solution and dripping curing agent solution, make mixing solutions reach required viscosity by chemical reaction; For the material of physical dryness, reach required viscosity by the proportioning of controlling solvent and solute;
(4) add additive solution except solidifying agent in step (3) the gained mixing solutions, get nitrine class sensitization type high energy ablator solution, total viscosity of adjusting ablation solution is 15 seconds to 20 seconds (being coated with-4 glasss of tests).
Preferably, solvent described in the step (1) is one or more in acetone, ethyl acetate, dimethylbenzene, ethanol or the butylacetate.
Preferably, the massfraction of nitrine class material solute is 10% ~ 70% in the solution described in the step (1), and the massfraction of high energy material solute is 1% ~ 40%, and the solute massfraction of additive is 0.5 ~ 15%.
Preferably, the nitrine class material in the solution of nitrine class material solution and solute and solute described in the step (2) weight ratio be 5 ~ 80:5 ~ 70.
Preferably, chemical reaction described in the step (3) refer to terminal hydroxy group, the end of nitrine class material and high energy material amino with solidifying agent in the isocyanato reaction, generate isocyanate group, make energy supply material self, improve between adhesive material self or energy supply material and the adhesive material crosslinking curing occurs; Described solvent is preferably, the mixing solutions of one or more of dimethylbenzene, toluene, ethyl acetate, butylacetate, ether etc., and the massfraction of solute is 20% ~ 60% in the solution.
Preferably, the consumption of the consumption of solidifying agent described in the step (3) and the described additive except solidifying agent of step (4) and with the weight ratio of nitrine class material and high energy material be 5 ~ 15:5 ~ 80:5 ~ 70.Wherein said additive except solidifying agent refer to comprise in light absorber, catalyzer, flow agent, defoamer or the stablizer etc. one or more or all.Nitrine class material, high energy material and additive
Further, the invention provides the little propelling transmission-type of a kind of laser target band, it comprises above-mentioned nitrine class sensitization type high energy ablator.
Further, the present invention also provides the preparation method of the little propelling transmission-type of described laser target band, and it comprises the steps:
(1) uses the method for blade coating or spraying that nitrine family macromolecule sensitization type high energy ablator mixed solution is machined to substrate, get the target carrying material;
(2) with step (1) gained target carrying material under 50 ~ 200 degrees centigrade condition dry 2 ~ 10 hours, repeat to process 2 ~ 8 times, make the build after the curing reach 10 ~ 200 microns;
(3) with step (2) gained target band dry film dry 1 ~ 72 hour under field conditions (factors);
(4) with step (3) gained target band dry film in vacuum drying oven, 30 handkerchiefs and with overdraft, thoroughly oven dry obtains the little propelling transmission-type of laser target band under 20 ~ 100 degrees celsius.
Preferably, described substrate is polyimide film, PET film, cellulose acetate membrane, BOPP film etc.
Further, the present invention also provides the application of described nitrine family macromolecule sensitization type high energy ablator transmission target ablator in the little propulsion aircraft of laser.
Beneficial effect of the present invention is as follows:
Nitrine family macromolecule sensitization type high energy ablator of the present invention takes full advantage of photosensitive energy and the sticking characteristic of tool of containing of nitrine class material.The nitrine family macromolecule contains photosensitive group, and effectively the absorbing laser energy reduces ablation threshold, lift-launch can reduce the power requirement to laser apparatus on microsatellite, alleviate the weight of laser apparatus, reduce the working medium weight that microthruster carries, satisfy the lightness requirement of microsatellite.Nitrine class material is a kind of material with higher energy density, itself contain can, in decomposition course, can discharge more heat transfer, it is higher but to the insensitive material of laser, further improve utilization ratio of laser energy that the heat of a decomposition part is used for energy density; Another part can directly produce the High Temperature High Pressure air mass, produces thrust, so the nitrine family macromolecule does not produce extra heavy burden to microthruster, improves utilization ratio of laser energy.The nitrine family macromolecule itself has viscosity, is the good binding agent of a kind of consistency.The high energy ablator and the substrate bonding that add the nitrine family macromolecule needn't be used other matrix materials; avoided the absorption of tack coat to transmission laser; reduced the dissipation of laser energy, but the Effective Raise utilization ratio of laser energy, and the decomposition of ablation resultant is also purer thorough; reduced the spread angle that product disperses; in the preparation process of long target band, use material of the present invention can save the brush coating process, simplified Production Flow Chart; be easier to control the thickness of ablation layer, be convenient to large-scale production.
The ablation layer material use that makes by aforesaid method the sticking characteristics of photosensitive high energy tool of nitrine family macromolecule, combine the energy of nitrine class material and high energy material, have that ablation threshold is low, containing can high, the sticking advantage of tool, the cohesiveness of substrate and ablator can satisfy service requirements, and utilization ratio of laser energy also can satisfy service requirements.
Description of drawings
Fig. 1 is the little propelling of laser of the present invention target material structural representation.
Fig. 2 is the impulse coupling coefficient-pulsewidth graph of a relation of embodiment 1.
Fig. 3 is the burnt faulted scanning pattern of the copolymerization in ablation hole.
Fig. 4 is the impulse coupling coefficient-pulsewidth graph of a relation of embodiment 2.
Embodiment
Introduce in detail the present invention below in conjunction with accompanying drawing and embodiment thereof.But protection of the present invention orientation is not limited to following instance, should comprise the full content in claims.
Employed experimental technique is ordinary method if no special instructions among the following embodiment, and employed material, reagent, reducing gas if no special instructions, all can obtain from commercial channels.
Embodiment 1: preparation
Prepare ablator according to following ratio:
79 parts of nitrine class materials,
8 parts of high energy materials,
13 parts of additives.
(1) prepares according to the above ratio nitrine class material, high energy material and additive, and use respectively dissolution with solvents, get nitrine class material solution, high energy material solution and additive solution;
Wherein, nitrine class material: 5 gram GAP are dissolved in 20 milliliters of ethyl acetate.
High energy material: 0.51 gram single-base powder is dissolved in 40 milliliters of ethyl acetate, leaves standstill 24 hours.
Additive: 0.5 milliliter of hexamethylene diisocyanate (HDI) is dissolved in the 5ml ethyl acetate, 0.01ml dibutyl tin laurate (DBTDL), and 0.31 gram nano-sized carbon is dissolved in the 3ml ethyl acetate.
(2) step (1) gained nitrine class material solution is mixed with high energy material solution, and stir;
(3) to step (2) gained mixed solution and dripping 0.01ml dibutyl tin laurate, stir after 20 minutes, drip hexamethylene diisocyanate (HDI) solution, reaching viscosity by chemical reaction is 15s (being coated with-4 glasss of tests), and nitrine family macromolecule sensitization type high energy ablator mixed solution stirs to get.
The preparation of target band:
(1) use is scraped coating method the little propelling transmission target of above-mentioned selfadhesive laser ablator mixed solution is machined to the PET substrate, the bottom-heated temperature is 70 degrees centigrade, the upper air Heating temperature is 25 degrees centigrade, 100 microns scraper circulation blade coatings 3 times, and being able to PET is the target carrying material of substrate;
(2) with step (1) gained target band dry film dry 20 hours under field conditions (factors);
(3) with step (2) gained target band dry film in vacuum drying oven, 30 handkerchief pressure, under 70 degrees celsius thoroughly the oven dry, obtain the little propelling transmission-type of laser target band.
Making test, to use target band, target tape thickness be 60 microns, reaches the described 5B level of GB9286-98 through hundred lattice cutter test substrate and autohension ablation layer cohesiveness, can satisfy service requirements.
The prescription that table 1 embodiment 1 uses forms
Embodiment 2: preparation
Prepare ablator according to following ratio:
38 parts of nitrine class materials,
51 parts of high energy materials,
11 parts of additives.
(1) prepares according to the above ratio nitrine class material, high energy material and additive, and use respectively dissolution with solvents, get nitrine class material solution, high energy material solution and additive solution;
Wherein, nitrine class material: 2.85 gram GAP are dissolved in 20 milliliters of ethyl acetate.
High energy material: 4 gram single-base powders are dissolved in 100 milliliters of ethyl acetate, leave standstill 24 hours.
Additive: 0.27 milliliter of hexamethylene diisocyanate (HDI) is dissolved in the 3ml ethyl acetate, 0.01ml dibutyl tin laurate (DBTDL), 0.375 restrains nano-sized carbon and is dissolved in the 5ml ethyl acetate.
(2) step (1) gained nitrine class material solution is mixed with high energy material solution, and stir;
(3) to step (2) gained mixed solution and dripping 0.01ml dibutyl tin laurate, stir after 20 minutes, drip hexamethylene diisocyanate (HDI) solution, reaching viscosity by chemical reaction is 20s (being coated with-4 glasss of tests), and nitrine family macromolecule sensitization type high energy ablator mixed solution stirs to get.
The preparation of target band:
(1) use is scraped coating method the little propelling transmission target of above-mentioned selfadhesive laser ablator mixed solution is machined to the PET substrate, the bottom-heated temperature is 70 degrees centigrade, the upper air Heating temperature is 25 degrees centigrade, 100 microns scraper circulation blade coatings 3 times, and being able to PET is the target carrying material of substrate;
(2) with step (1) gained target band dry film dry 15 hours under field conditions (factors);
(3) with step (2) gained target band dry film in vacuum drying oven, 30 handkerchief pressure, under 70 degrees celsius thoroughly the oven dry, obtain the little propelling transmission-type of laser target band.
Making test, to use target band, target tape thickness be 60um, reaches the described 5B level of GB9286-98 through hundred lattice cutter test substrate and autohension ablation layer cohesiveness, can satisfy service requirements.
The prescription that table 2 embodiment 2 uses forms
Embodiment 3: preparation
Prepare ablator according to following ratio:
90 parts of nitrine class materials,
70 parts of high energy materials,
15 parts of additives.
(1) prepares according to the above ratio nitrine class material, high energy material and additive, and use respectively dissolution with solvents, get nitrine class material solution, high energy material solution and additive solution;
Wherein, nitrine class material: 9 gram GAP are dissolved in 20 milliliters of ethyl acetate.
High energy material: 7 gram single-base powders are dissolved in 55 milliliters of ethyl acetate, leave standstill 24 hours.
Additive: 5 milliliters of hexamethylene diisocyanates (HDI) are dissolved in the 5ml ethyl acetate, 0.01ml dibutyl tin laurate (DBTDL), and 5 gram nano-sized carbon are dissolved in the 10ml ethyl acetate, 2 gram CAB381-0.1,3 gram TINUVIN328.
(2) step (1) gained nitrine class material solution is mixed with high energy material solution, and stir;
(3) to step (2) gained mixed solution and dripping 0.01ml dibutyl tin laurate, stir after 20 minutes, drip hexamethylene diisocyanate (HDI) solution, add CAB381-0.1 and TINUVIN328, reaching viscosity by chemical reaction is 15s (being coated with-4 glasss of tests), and nitrine family macromolecule sensitization type high energy ablator mixed solution stirs to get.
The preparation of target band:
(1) use is scraped coating method the little propelling transmission target of above-mentioned selfadhesive laser ablator mixed solution is machined to the PET substrate, the bottom-heated temperature is 70 degrees centigrade, the upper air Heating temperature is 35 degrees centigrade, 100 microns scraper circulation blade coatings 3 times, and being able to PET is the target carrying material of substrate;
(2) with step (1) gained target band dry film dry 18 hours under field conditions (factors);
(3) with step (2) gained target band dry film in vacuum drying oven, 30 handkerchief pressure, under 70 degrees celsius thoroughly the oven dry, obtain the little propelling transmission-type of laser target band.
Making test, to use target band, target tape thickness be 65 microns, reaches the described 5B level of GB9286-98 through hundred lattice cutter test substrate and autohension ablation layer cohesiveness, can satisfy service requirements.
Embodiment 4: test
Use the little momentum of laser to rock instrument the ablation band of embodiment 1 is tested, test result is as shown in table 3, and the relation of laser pulse width and impulse coupling coefficient as shown in Figure 2.Under the 0.3ms pulsewidth, impulse coupling coefficient is up to more than the 300dyn/W, and under the 0.1ms pulsewidth, this component still can be excited, and the ablation pulse width threshold of traditional ablator double-base powder is 0.2ms, and impulse coupling coefficient only is 70dyn/W.Can find by comparing, the ablation pulse width threshold reduces greatly after the sensitization of this prescription process nitrine class material, and impulse coupling coefficient also improves greatly, and utilization ratio of laser energy has also broken through 100%, obtains desired result.The rhegmalypt hole is after the burnt tomoscan microscope scanning of copolymerization, and pattern as shown in Figure 3.
The test result of table 3 embodiment 1 target band
Embodiment 5: test
Use the little momentum of laser to rock instrument embodiment 2 ablation bands are tested, test result is as shown in table 4, and the relation of laser pulse width and impulse coupling coefficient as shown in Figure 4.
The test result of table 4 embodiment 2 target bands
Contrast test example 3 and test case 4 can find, when pulsewidth all was 1ms, the utilization ratio of laser energy of two examples had all broken through 100%, the chemical energy that the nitrine family macromolecule sensitization type high energy ablator of invention the is described release that is excited.Two examples are compared, and the impulse coupling coefficient of the embodiment 1 gained target band that nitrine family macromolecule content is high is higher, and the specific impulse of the higher embodiment 2 gained target bands of high energy material content is higher, and both can be fit to, and the microsatellite track keeps and the different needs of attitude adjustment.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claims and equivalent thereof.
Claims (10)
1. nitrine family macromolecule sensitization type high energy ablator comprises the composition of following weight part:
Nitrine class material 5-80 part,
High energy material 5-70 part,
Additive 5-15 part.
2. ablator as claimed in claim 1 is characterized in that, described nitrine class material is glycidyl azide polymer or 3,3-, two azido-methyl oxa-fourth rings.
3. ablator as claimed in claim 1 is characterized in that, described high energy material is one or more in single-base powder, double-base powder, PMMA, hexogen, hexanitro-Di, octogen or the polyvinyl alcohol nitric ether.
4. ablator as claimed in claim 1 is characterized in that, described additive comprise in light absorber, catalyzer, solidifying agent, flow agent, defoamer or the stablizer one or more or all.
5. ablator as claimed in claim 4 is characterized in that, described light absorber is nano-micrometre grade carbon dust or liquid infrared absorbing agents; Described catalyzer is dibutyl tin laurate, stannous octoate or amines catalyst; Described solidifying agent is hexamethylene diisocyanate, isophorone diisocyanate or 4,4 '-diphenylmethanediisocyanate; Described flow agent is cellulose acetate butyrate; Described defoamer is BYK-141 or Pernol E1; Described stablizer is ultraviolet absorbers or oxidation inhibitor.
6. method for preparing the described ablator of claim 1 ~ 5 any one, it comprises the steps:
(1) prepares in proportion nitrine class material, high energy material and additive, and use respectively dissolution with solvents, get nitrine class material solution, high energy material solution and additive solution;
(2) in proportion step (1) gained nitrine class material solution is mixed with high energy material solution, and stir;
(3) for the material of chemical seasoning, to step (2) gained mixed solution and dripping curing agent solution, make mixing solutions reach required viscosity by chemical reaction; For the material of physical dryness, reach required viscosity by the proportioning of controlling solvent and solute;
(4) add additive solution except solidifying agent in step (3) the gained mixing solutions, get nitrine class sensitization type high energy ablator solution, total viscosity of adjusting ablation solution is 15 ~ 20 seconds.
7. method as claimed in claim 6 is characterized in that, solvent described in the step (1) is one or more in acetone, ethyl acetate, dimethylbenzene, ethanol or the butylacetate.
8. method as claimed in claim 6 is characterized in that, the massfraction of nitrine class material solute is 10% ~ 70% in the solution described in the step (1), and the massfraction of high energy material solute is 1% ~ 40%, and the solute massfraction of additive is 0.5 ~ 15%.
9. the little propelling transmission-type of a laser target band is characterized in that, comprises the described nitrine family macromolecule of claim 1 ~ 5 any one sensitization type high energy ablator.
10. preparation method who prepares the little propelling transmission-type of the described laser of claim 9 target band, it comprises the steps:
(1) uses the method for blade coating or spraying that nitrine family macromolecule sensitization type high energy ablator mixed solution is machined to substrate, get the target carrying material;
(2) with step (1) gained target carrying material under 50 ~ 200 degrees centigrade condition dry 2 ~ 10 hours, repeat to process 2 ~ 8 times, make the build after the curing reach 10 ~ 200 microns;
(3) with step (2) gained target band dry film dry 1 ~ 72 hour under field conditions (factors);
(4) with step (3) gained target band dry film in vacuum drying oven, 30 handkerchiefs and with overdraft, thoroughly oven dry obtains the little propelling transmission-type of laser target band under 20 ~ 100 degrees celsius.
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| CN108373397A (en) * | 2018-03-13 | 2018-08-07 | 南京理工大学 | The controllable photosensitive propellant of burn rate |
| CN108610222A (en) * | 2016-12-10 | 2018-10-02 | 南京理工大学 | A kind of GAP propellant preparation methods for laser micro-propulsion |
| CN108721790A (en) * | 2018-05-31 | 2018-11-02 | 中国工程物理研究院化工材料研究所 | A kind of cell bomb of laser initiation explosion |
| CN110015938A (en) * | 2018-01-08 | 2019-07-16 | 中国科学院微电子研究所 | A kind of film target band and preparation method |
| CN115092422A (en) * | 2022-05-23 | 2022-09-23 | 中国人民解放军战略支援部队航天工程大学 | Preparation method and production device of supply disc for double-layer target belt of laser micro thruster |
| CN116854551A (en) * | 2023-06-29 | 2023-10-10 | 武汉大学 | Solid working medium for improving laser micro-propulsion performance and preparation method and application thereof |
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