CN101853986A - Manufacturing methods of inflatable deployable antenna reflecting surface based on shape memory polymer and reflecting surface film and skin thereof - Google Patents
Manufacturing methods of inflatable deployable antenna reflecting surface based on shape memory polymer and reflecting surface film and skin thereof Download PDFInfo
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Abstract
The invention discloses manufacturing methods of an inflatable deployable antenna reflecting surface based on shape memory polymer and a reflecting surface film and skin thereof, which relate to the manufacturing methods of an antenna reflecting surface, and a reflecting surface film and the skin thereof, and solve the problem that a traditional deployable solid surface antenna reflecting surface is inconvenient to fold. The antenna reflecting surface comprises a reflecting surface body, a first circular airbag, a second circular airbag, radial airbags and the skin, the upper end and the lower edge of a convex paraboloid of the reflecting surface body are respectively and fixedly connected with the first circular airbag and the second circular airbag, the convex paraboloid of the reflecting surface body is uniformly provided with N radial airbags which are lined in the circumferential direction, and the skin is covered on the convex paraboloid of the reflecting surface body; the reflecting surface film is coated on fiber reinforcing material through shape memory polymer material; and the skin coats the shape memory polymer material on flexible material. The antenna reflecting surface can be conveniently folded and unfolded, and is used for space communication.
Description
Technical field
The present invention relates to the manufacture method of a kind of antenna reflective face and reflecting surface piece thereof, covering, belong to the space technology field.
Background technology
In the existing space technology field, because the spatial limitation of carrying space aircraft, the space flight antenna reflector must be folding before emission, when when rail is worked, needing to launch automatically, because the load-carrying of carrying space aircraft is restricted, the space flight antenna reflector must reduce its weight as much as possible, in addition, also should guarantee performances such as antenna reflector high reliability.Along with the fast development of space technology, satellite communication, radio astronomy and Radar Technology, the space flight antenna reflector progressively develops to small size, lightweight, high performance deployable direction.
In recent years, the fast development of intellectual material provided wide development space for reflecting surface of deployable antenna.Shape-memory polymer is a kind of of intellectual material, and it has following characteristic: when it was heated to the material phase transformation temperature, the shape-memory polymer modulus descended significantly, and represented shape memory effect.Based on the reflecting surface of deployable antenna that this kind material is made, can control its modulus by the change of temperature, and then this material shape changes.Before the antenna reflective face inflation distortion, the antenna-reflected surface of emission is warming up to more than the glass transition temperature, the antenna reflective face modulus reduces, and is beneficial to the deployable distortion of inflation of antenna reflective face.After the distortion, the antenna-reflected surface of emission is cooled to below the glass transition temperature of shape-memory material, antenna reflective face self modulus rises, and the intensity of antenna reflective face and rigidity increase, and improves antenna-reflected face stability and reliability.
A kind of extensible solid surface antenna reflective face has been proposed in Chinese patent 200710072028.6, described reflecting surface of deployable antenna adopts shape memory polymer material as the hoop reinforcement and the longitudinal reinforcer that launch driving and rigid support, can be according to the temperature of heating, the form of control shape memory polymer material.But hoop reinforcement and longitudinal reinforcer adopt mechanically operated mode to drive reflecting surface, exist the folding inconvenient defective of reflecting surface of deployable antenna.
Summary of the invention
The present invention is in order to solve the folding inconvenient problem of existing extensible solid surface antenna reflective face, provide a kind of based on shape-memory polymer the inflatable deployable antenna reflecting surface and the manufacture method of reflecting surface piece, covering.
The present invention is by the reflecting surface body, the first hoop air bag, the second hoop air bag, radially air bag and covering are formed, described reflecting surface body is one and is spliced by the identical reflecting surface piece of N sheet, the bottom is equipped with the annular parabolic body of circular open, every reflecting surface piece is fan ring-type curved surface lobe, upper edge at the convex paraboloid of reflecting surface body is fixedly connected with the first hoop air bag, lower edge at the convex paraboloid of reflecting surface body is fixedly connected with the second hoop air bag, evenly be provided with the individual radially air bag of N that circumferencial direction is arranged on the convex paraboloid of the reflecting surface body between the first hoop air bag and the second hoop air bag, on the convex paraboloid of reflecting surface body, be coated with covering, wherein, N is the even number more than or equal to 4, and described reflecting surface body and covering are made by shape-memory material.
The manufacture method that is used for a kind of reflecting surface piece of the inflatable deployable antenna reflecting surface based on shape-memory polymer:
The manufacturing process of described reflecting surface piece is:
Step 1, designing mould: according to the shape of the annular parabolic body of reflecting surface body and the close die that the internal diameter size design is used to make reflecting surface piece thereof;
Step 2, preparation shape memory polymer material: curing agent and high molecular polymer are made into shape memory polymer material by the mass ratio of 1～5:28;
Step 3, use shape memory polymer material coated fiber reinforcing material: the shape memory polymer material that obtains in the step 2 and the fibre reinforced materials mass ratio by 0.67～99:1 is taken by weighing, described shape memory polymer material is coated in respectively on the upper and lower surface of fibre reinforced materials;
Step 4, irritate mould: the fibre reinforced materials that the upper and lower surface that obtains in the step 3 all is coated with shape memory polymer material places in the close die that step 1 designs, use shape memory polymer material that the space in the close die is filled and fill, form uncured fiber-reinforced shape memory polymer blank;
Step 6, the demoulding: take out the close die described in the step 5 from heating cabinet, after described close die was carried out the demoulding and handled, obtaining with the fiber-reinforced shape memory polymer was the reflecting surface piece of material.
The manufacture method that is used for a kind of covering of the inflatable deployable antenna reflecting surface based on shape-memory polymer:
The manufacturing process of described covering is:
Step 1, designing mould: according to the shape of the annular parabolic body of covering and the close die that the internal diameter size design is used to make covering thereof;
Step 2, preparation shape memory polymer material: curing agent and high molecular polymer are made into shape memory polymer material by the mass ratio of 1～5:28;
Step 3, use shape memory polymer material coating flexible material: the shape memory polymer material that obtains in the step 2 and the flexible material mass ratio by 0.67～99:1 is taken by weighing, described shape memory polymer material is coated in respectively on the upper and lower surface of flexible material;
Step 4, irritate mould: the flexible material that the upper and lower surface that obtains in the step 3 all is coated with shape memory polymer material places in the close die that step 1 designs, use shape memory polymer material that the space in the close die is filled and fill, form uncured flexible shape memory polymer blank;
Step 6, the demoulding: take out the close die described in the step 5 from heating cabinet, after described close die was carried out the demoulding and handled, obtaining with the flexible shape memory polymer was the covering of material.
Contraction distortion process: before the aerospace craft emission, with the first hoop air bag, the second hoop air bag and radially gas emptying in the air bag, inflatable deployable antenna reflecting surface energising based on shape-memory polymer of the present invention is heated to more than the glass transition temperature of shape-memory material, this moment is under the effect of external force, with gauffer number and the contraction bore of reflecting surface of deployable antenna restrained deformation to designing requirement, the reflecting surface body shrinks and is folded into umbellate form gauffer shape structure; Keeping under the constant condition of external constraint, the described antenna-reflected of present embodiment surface body is cooled to below the glass transition temperature of shape-memory material, its modulus of elasticity rises, hardened material, remove external constraint, deployable antenna reflecting surface body 1 fixed in shape is fixed in the deployable antenna reflector that folds contraction state in the aerospace craft;
Launch deformation process: at aerospace craft after rail flight, to the inflatable deployable antenna reflecting surface energising heating based on shape-memory polymer of the present invention, when reaching glass transition temperature, air bag is inflated when above reflecting surface body temperature degree, drive antenna reflective face deformation-recovery of the present invention to deployed condition, the described antenna-reflected of present embodiment surface body is cooled to below the glass transition temperature of shape-memory material, its modulus of elasticity rises, hardened material, and the deployable antenna reflector realizes launching and entering operating state.
The present invention has following advantage:
1, uses the air bag lighter to drive and the rigid support device, both reduced the weight of antenna, guaranteed the rigidity requirement and the stability requirement of antenna again as launching with respect to conventional metals weight.Adopt air bag to realize this process that antenna reflective face launches, output expansion power can satisfy system requirements, and the expansion motion process is mild, convenient.After antenna reflective face launched, air bag played the rigid support effect to structure, keeps the surface configuration and the whole system operation of reflecting surface;
2, the inflatable deployable antenna reflecting surface of shape-memory material makes the deployable antenna reflector structure comparatively simple, and system configuration and controlling unit are few, the reliability height of system works;
3, adopt the rigid support of air bag as antenna reflective face, have the volume ratio of bigger expansion and contraction, the expansion degree is bigger;
4, reflecting surface piece and the covering that adopts shape-memory material to make antenna reflector can be controlled its modulus by the change of temperature, and then this material shape change, realized the expansion and the contraction process of antenna reflective face steadily, easily.
Adopt of the present invention a kind of based on shape-memory polymer the inflatable deployable antenna reflecting surface and the manufacture method of reflecting surface piece, covering, the antenna reflective face of acquisition is simple in structure, the system reliability height, the expansion degree of its reflecting surface is bigger.
Description of drawings
Fig. 1 is a structural representation of the present invention; Fig. 2 is the structural relation figure of reflecting surface body and reflecting surface piece; Fig. 3 is an end view of the present invention; Fig. 4 is the structural representation after the present invention folds; Fig. 5 is the making flow chart of embodiment five described reflecting surface piece; Fig. 6 is the making flow chart of embodiment 11 described coverings.
Embodiment
Embodiment one: specify present embodiment below in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4.A kind of inflatable deployable antenna reflecting surface based on shape-memory polymer, it is by reflecting surface body 1, the first hoop air bag 2, the second hoop air bag 3, radially air bag 4 and covering 5 are formed, described reflecting surface body 1 is one and is spliced by the identical reflecting surface piece 1-1 of N sheet, the bottom is equipped with the annular parabolic body of circular open, every reflecting surface piece 1-1 is fan ring-type curved surface lobe, upper edge at the convex paraboloid of reflecting surface body 1 is fixedly connected with the first hoop air bag 2, lower edge at the convex paraboloid of reflecting surface body 1 is fixedly connected with the second hoop air bag 3, evenly be provided with the individual radially air bag 4 of N that circumferencial direction is arranged on the convex paraboloid of the reflecting surface body 1 between the first hoop air bag 2 and the second hoop air bag 3, on the convex paraboloid of reflecting surface body 1, be coated with covering 5, wherein, N is the even number more than or equal to 4, and described reflecting surface body 1 and covering 5 are made by shape-memory material.
Described air bag is linked to each other with inflatable structure, the first hoop air bag 2 and the second hoop air bag 3 provide the hoop rigidity of parabola vertical direction in the present embodiment, radially air bag 4 provides along the radial rigidity of parabola direction, the first hoop air bag 2, the second hoop air bag 3 and the rigid support that realizes total of air bag 4 radially.
Contraction distortion process: before the aerospace craft emission, with the first hoop air bag 2, the second hoop air bag 3 and radially gas emptying in the air bag 4, inflatable deployable antenna reflecting surface based on shape-memory polymer of the present invention is heated to more than the glass transition temperature of shape-memory material, this moment is under the effect of external force, with gauffer number and the contraction bore of reflecting surface of deployable antenna restrained deformation to designing requirement, reflecting surface body 1 shrinks and is folded into umbellate form gauffer shape structure; Keeping under the constant condition of external constraint, the described antenna-reflected of present embodiment surface body 1 is cooled to below the glass transition temperature of shape-memory material, its modulus of elasticity rises, hardened material, remove external constraint, deployable antenna reflecting surface body 1 fixed in shape is fixed in the deployable antenna reflector that folds contraction state in the aerospace craft;
Launch deformation process: at aerospace craft after rail flight, to the inflatable deployable antenna reflecting surface heating based on shape-memory polymer of the present invention, when reaching glass transition temperature, reflecting surface body 1 temperature air bag is inflated when above, drive antenna reflective face deformation-recovery of the present invention to deployed condition, the described antenna-reflected of present embodiment surface body 1 is cooled to below the glass transition temperature of shape-memory material, its modulus of elasticity rises, hardened material, and the deployable antenna reflector realizes launching and entering operating state.
Present embodiment has following advantage:
1, uses the air bag lighter to drive and the rigid support device, both reduced the weight of antenna, guaranteed the rigidity requirement and the stability requirement of antenna again as launching with respect to conventional metals weight.Adopt air bag to realize this process that antenna reflective face launches, output expansion power can satisfy system requirements, and the expansion motion process is mild, convenient.After antenna reflective face launched, air bag played the rigid support effect to structure, keeps the surface configuration and the whole system operation of reflecting surface;
2, the inflatable deployable antenna reflecting surface of shape-memory material makes the deployable antenna reflector structure comparatively simple, and system configuration and controlling unit are few, the reliability height of system works;
3. adopt the rigid support of air bag as antenna reflective face, have the volume ratio of bigger expansion and contraction, the expansion degree is bigger.
Embodiment two: specify present embodiment below in conjunction with Fig. 1, Fig. 3.The difference of present embodiment and embodiment one is: the thickness of described reflecting surface body 1 is 0.02～40mm; The outer radius of reflecting surface body 1 is: 0.5～60m; The inside radius of reflecting surface body 1 is: 0.1～2m; The focal length of the paraboloid of revolution of reflecting surface body 1 is 0.025～2.5:1 with the ratio of the paraboloid of revolution bore of reflecting surface body 1.
Embodiment three: present embodiment is with the difference of embodiment one: reflecting surface piece 1-1, the first hoop air bag 2, the second hoop air bag 3, radially adopt bonding, mechanical connection or the bonding connected mode that combines with mechanical connection between air bag 4 and the covering 5.
According to designed inflation reflecting surface of deployable antenna skeleton structure, with the first hoop air bag 2, the second hoop air bag 3 and the N of sealing radially air bag 4 be successively placed in the compartment of N reflecting surface piece 1-1 and fix, described air bag size shape and two-dimentional reflector shape match.
Embodiment four: the difference of present embodiment and embodiment one is: the mode of heating when described antenna reflective face launches is: electric heating, Steam Heating or outer space radiation heating; Mode of heating when antenna reflective face shrinks is: electric heating or Steam Heating.
The described reflecting surface body 1 of present embodiment adopts above-mentioned mode of heating to realize the motion from folding contraction state to deployed condition.
Embodiment five: specify present embodiment below in conjunction with Fig. 5.The manufacture method that is used for the reflecting surface piece of the described a kind of inflatable deployable antenna reflecting surface based on shape-memory polymer of embodiment one:
The manufacturing process of described reflecting surface piece 1-1 is:
Step 1, designing mould: according to the shape of the annular parabolic body of reflecting surface body 1 and the close die that the internal diameter size design is used to make reflecting surface piece 1-1 thereof;
Step 2, preparation shape memory polymer material: curing agent and high molecular polymer are made into shape memory polymer material by the mass ratio of 1～5:28;
Step 3, use shape memory polymer material coated fiber reinforcing material: the shape memory polymer material that obtains in the step 2 and the fibre reinforced materials mass ratio by 0.67～99:1 is taken by weighing, described shape memory polymer material is coated in respectively on the upper and lower surface of fibre reinforced materials;
Step 4, irritate mould: the fibre reinforced materials that the upper and lower surface that obtains in the step 3 all is coated with shape memory polymer material places in the close die that step 1 designs, use shape memory polymer material that the space in the close die is filled and fill, form uncured fiber-reinforced shape memory polymer blank;
Step 6, the demoulding: take out the close die described in the step 5 from heating cabinet, after described close die was carried out the demoulding and handled, obtaining with the fiber-reinforced shape memory polymer was the reflecting surface piece 1-1 of material.
Embodiment six: the difference of present embodiment and embodiment five is: the material of high molecular polymer described in the step 2 is that polystyrene shape-memory polymer, epoxy resin shape-memory polymer, cyanate are one or more in shape-memory polymer, shape memory polyurethane, shape memory polyester, shape memory Styrene-Butadiene, shape memory using trans-polyisoprene or the shape memory polynorbornene.
Embodiment seven: the difference of present embodiment and embodiment five is: the fibre reinforced materials described in the step 3 is one or more in graphite fibre, carbon fiber, glass fibre, boron fibre, carbon black, graphite powder or the carbon nano-tube.
The described several fibre reinforced materials of present embodiment have that proportion is little, intensity is high, modulus is high and characteristics such as corrosion-resistant.
Embodiment eight: the difference of present embodiment and embodiment five is: further comprising the steps of in the step 5, mould is placed on heating in the heating cabinet, continues heating 20 hours down at 75 ℃.
Adopt the described method of present embodiment to be heating and curing and to handle the antenna reflective face that obtains to being placed on mould in the heating cabinet.
Embodiment nine: the difference of present embodiment and embodiment five is: further comprising the steps of in the step 5, mould is placed on heating in the heating cabinet, under 75 ℃ of conditions, kept 60 minutes, bring up to again under 100 ℃ of conditions and be incubated 30 minutes, under 75 ℃ of conditions, kept 24 hours then.
Adopt the described method of present embodiment to be heating and curing and to handle the antenna reflective face that obtains to being placed on mould in the heating cabinet.
Embodiment ten: the difference of present embodiment and embodiment five is: the density of the fiber-reinforced shape memory polymer described in the step 6 is less than 2g/cm
3
To heat the fiber-reinforced shape memory polymer blank demoulding that solidify the back in the step 6, described shape-memory polymer accounts for 40～99% of fiber-reinforced shape memory polymer quality, and described fibre reinforced materials accounts for 1～60% of fiber-reinforced shape memory polymer quality.
Embodiment 11: specify present embodiment below in conjunction with Fig. 6.The manufacture method that is used for the covering of the described a kind of inflatable deployable antenna reflecting surface based on shape-memory polymer of embodiment one:
The manufacturing process of described covering 5 is:
Step 1, designing mould: according to the shape of the annular parabolic body of covering 5 and the close die that the internal diameter size design is used to make covering 5 thereof;
Step 2, preparation shape memory polymer material: curing agent and high molecular polymer are made into shape memory polymer material by the mass ratio of 1～5:28;
Step 3, use shape memory polymer material coating flexible material: the shape memory polymer material that obtains in the step 2 and the flexible material mass ratio by 0.67～99:1 is taken by weighing, described shape memory polymer material is coated in respectively on the upper and lower surface of flexible material;
Step 4, irritate mould: the flexible material that the upper and lower surface that obtains in the step 3 all is coated with shape memory polymer material places in the close die that step 1 designs, use shape memory polymer material that the space in the close die is filled and fill, form uncured flexible shape memory polymer blank;
Step 6, the demoulding: take out the close die described in the step 5 from heating cabinet, after described close die was carried out the demoulding and handled, obtaining with the flexible shape memory polymer was the covering 5 of material.
Embodiment 12: the difference of present embodiment and embodiment 11 is: the flexible material described in the step 3 is the flaky material that silicon rubber is made.
Claims (10)
1. inflatable deployable antenna reflecting surface based on shape-memory polymer, it is characterized in that it is by reflecting surface body (1), the first hoop air bag (2), the second hoop air bag (3), radially air bag (4) and covering (5) are formed, described reflecting surface body (1) is one and is spliced by the identical reflecting surface piece of N sheet (1-1), the bottom is equipped with the annular parabolic body of circular open, every reflecting surface piece (1-1) is fan ring-type curved surface lobe, upper edge at the convex paraboloid of reflecting surface body (1) is fixedly connected with the first hoop air bag (2), lower edge at the convex paraboloid of reflecting surface body (1) is fixedly connected with the second hoop air bag (3), evenly be provided with the individual radially air bag (4) of N that circumferencial direction is arranged on the convex paraboloid of the reflecting surface body (1) between the first hoop air bag (2) and the second hoop air bag (3), on the convex paraboloid of reflecting surface body (1), be coated with covering (5), wherein, N is the even number more than or equal to 4, and described reflecting surface body (1) and covering (5) are made by shape-memory material.
2. a kind of inflatable deployable antenna reflecting surface according to claim 1 based on shape-memory polymer, it is characterized in that: the thickness of described reflecting surface body (1) is 0.02～40mm; The outer radius of reflecting surface body (1) is: 0.5～60m; The inside radius of reflecting surface body (1) is: 0.1～2m; The ratio of the paraboloid of revolution bore of the focal length of the paraboloid of revolution of reflecting surface body (1) and reflecting surface body (1) is 0.025～2.5:1.
3. a kind of inflatable deployable antenna reflecting surface based on shape-memory polymer according to claim 1 is characterized in that: reflecting surface piece (1-1), the first hoop air bag (2), the second hoop air bag (3), radially adopt bonding, mechanical connection or the bonding connected mode that combines with mechanical connection between air bag (4) and the covering (5).
4. a kind of inflatable deployable antenna reflecting surface based on shape-memory polymer according to claim 1 is characterized in that: the mode of heating when described antenna reflective face launches is: electric heating, Steam Heating or outer space radiation heating; Mode of heating when antenna reflective face shrinks is: electric heating or Steam Heating.
5. the manufacture method that is used for the reflecting surface piece of the described a kind of inflatable deployable antenna reflecting surface based on shape-memory polymer of claim 1:
The manufacturing process of described reflecting surface piece (1-1) is:
Step 1, designing mould: according to the shape of the annular parabolic body of reflecting surface body (1) and the close die that the internal diameter size design is used to make reflecting surface piece (1-1) thereof;
Step 2, preparation shape memory polymer material: curing agent and high molecular polymer are made into shape memory polymer material by the mass ratio of 1～5:28;
Step 3, use shape memory polymer material coated fiber reinforcing material: the shape memory polymer material that obtains in the step 2 and the fibre reinforced materials mass ratio by 0.67～99:1 is taken by weighing, described shape memory polymer material is coated in respectively on the upper and lower surface of fibre reinforced materials;
Step 4, irritate mould: the fibre reinforced materials that the upper and lower surface that obtains in the step 3 all is coated with shape memory polymer material places in the close die that step 1 designs, use shape memory polymer material that the space in the close die is filled and fill, form uncured fiber-reinforced shape memory polymer blank;
Step 5, curing: the close die that the inside described in the step 4 is filled with uncured fiber-reinforced shape memory polymer blank is placed in the heating cabinet and heats, and heating-up temperature is 70～100 ℃, and be 16～24 hours heating time;
Step 6, the demoulding: take out the close die described in the step 5 from heating cabinet, after described close die was carried out the demoulding and handled, obtaining with the fiber-reinforced shape memory polymer was the reflecting surface piece (1-1) of material.
6. the manufacture method that is used for a kind of reflecting surface piece of the inflatable deployable antenna reflecting surface based on shape-memory polymer according to claim 5 is characterized in that: the material of high molecular polymer described in the step 2 is that polystyrene shape-memory polymer, epoxy resin shape-memory polymer, cyanate are one or more in shape-memory polymer, shape memory polyurethane, shape memory polyester, shape memory Styrene-Butadiene, shape memory using trans-polyisoprene or the shape memory polynorbornene.
7. the manufacture method that is used for a kind of reflecting surface piece of the inflatable deployable antenna reflecting surface based on shape-memory polymer according to claim 5, it is characterized in that: the fibre reinforced materials described in the step 3 is one or more in graphite fibre, carbon fiber, glass fibre, boron fibre, carbon black, graphite powder or the carbon nano-tube.
8. the manufacture method that is used for a kind of reflecting surface piece of the inflatable deployable antenna reflecting surface based on shape-memory polymer according to claim 5, it is characterized in that: the density of the fiber-reinforced shape memory polymer described in the step 6 is less than 2g/cm
3
9. the manufacture method that is used for the covering of the described a kind of inflatable deployable antenna reflecting surface based on shape-memory polymer of claim 1:
The manufacturing process of described covering (5) is:
Step 1, designing mould: according to the shape of the annular parabolic body of covering (5) and the close die that the internal diameter size design is used to make covering (5) thereof;
Step 2, preparation shape memory polymer material: curing agent and high molecular polymer are made into shape memory polymer material by the mass ratio of 1～5:28;
Step 3, use shape memory polymer material coating flexible material: the shape memory polymer material that obtains in the step 2 and the flexible material mass ratio by 0.67～99:1 is taken by weighing, described shape memory polymer material is coated in respectively on the upper and lower surface of flexible material;
Step 4, irritate mould: the flexible material that the upper and lower surface that obtains in the step 3 all is coated with shape memory polymer material places in the close die that step 1 designs, use shape memory polymer material that the space in the close die is filled and fill, form uncured flexible shape memory polymer blank;
Step 5, curing: the close die that the inside described in the step 4 is filled with uncured flexible shape memory polymer blank is placed in the heating cabinet and heats, and heating-up temperature is 70～100 ℃, and be 16～24 hours heating time;
Step 6, the demoulding: take out the close die described in the step 5 from heating cabinet, after described close die was carried out the demoulding and handled, obtaining with the flexible shape memory polymer was the covering (5) of material.
10. the manufacture method that is used for a kind of covering of the inflatable deployable antenna reflecting surface based on shape-memory polymer according to claim 9, it is characterized in that: the flexible material described in the step 3 is the flaky material that silicon rubber is made.
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| CN112072321A (en) * | 2020-09-28 | 2020-12-11 | 中国电子科技集团公司第五十四研究所 | Preparation process of inflatable antenna |
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