CN101055344A - Shape memory polymer composite body with spatially-expanded three-wing beam and its preparation method - Google Patents
Shape memory polymer composite body with spatially-expanded three-wing beam and its preparation method Download PDFInfo
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- CN101055344A CN101055344A CN 200710072055 CN200710072055A CN101055344A CN 101055344 A CN101055344 A CN 101055344A CN 200710072055 CN200710072055 CN 200710072055 CN 200710072055 A CN200710072055 A CN 200710072055A CN 101055344 A CN101055344 A CN 101055344A
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Abstract
A space expanded three-wing-beam shaped remember polymer compound and the preparation thereof relates to a space expanded three-wing-beam shaped remember polymer and the preparation thereof, and to solve the problems of large material weight, complicated expanded mechanical performance, unsteady controlling of the expanding-telescoping procedure, and complicated fabrication technology in the existing space expanded beam structure design procedure. The compound material layer of the shaped remember polymer compound is shaped as superposition and the electric resistance silk screen is located therein. The inner of the compound material layer bending part of the shaped remember polymer compound is connected with a yalloy material layer, the preparation of which comprises the steps of: sorting, confect material, curing. The invention has the advantages of: high specific strength, small material weight, strong controlling ability for beam expanding, simple mechanical performance of the space beam expanding. Moreover, the invention has the characteristic of shaped remember and simple technological operation of the preparation.
Description
Technical field
The present invention relates to shape memory polymer composite body of a kind of spatially-expanded three-wing beam and preparation method thereof.
Background technology
The shape memory polymer composite material spatially-expanded three-wing beam is meant the equipment that uses in the space field, as the RF catoptron, and passive structure in radar board and the optical telescope.Such beam is not changeless, is the stack of curling in emission process, and occupation space is very little, and the expansion of in the use of space, can stretching as required; Three-wing beam is meant that then entire bracket girder system system is made up of three sub-beams.For the structural design of space development beam, mainly comprise two aspects, one is integrally-built weight design, this depends primarily on the selection of material; But only reduce weight is not enough, also needs to satisfy mechanical property requirements simultaneously, or even improves.Be the design that launches the mechanicalness operating aspect on the other hand, mainly contain two classes, first kind is the scalable beam of tubulose, and its expansion mechanicalness is simple, but relatively heavier; Be axle collar tie-beam in addition, the overall weight of this beam is light, but launches the mechanicalness more complicated, and has the expansion reliability problems, simultaneously because this beam selects for use is metal or stainless steel material, material internal produces big strain energy and causes system's instability when having crimp shrinkage.For solving the variety of problems that above-mentioned space development beam exists, need to select new material.In sum, shape-memory polymer is used in the space development beam with regard to having such attribute as the novel intelligent material with shape memory characteristic.But shape-memory polymer has the low shortcoming of output intensity as polymkeric substance, yet when shape memory resin is composited compound substance mutually with fiber reinforcement, just can have than the higher specific strength of metal and inorganic material and the performance of specific modulus.The shape memory characteristic of shape-memory polymer makes the expansion beam have shape memory characteristic, has increased the control that beam is launched, and has reduced the space beam and has launched mechanical complicacy, has improved the expansion integrity problem.
Summary of the invention
For solve existing space launch the material weight that beam exists big, launch mechanicalness complicated and launch telescopic process control unstable with and the manufacturing process complicated problems, the invention provides shape memory polymer composite body of a kind of spatially-expanded three-wing beam and preparation method thereof.
The shape memory polymer composite body of spatially-expanded three-wing beam of the present invention is made up of shape memory polymer composite material layer and alloy material layer, described shape memory polymer composite material layer be shaped as the stack shape, be equipped with resistance screen in the shape memory polymer composite material layer, on the medial surface of the crooked position of shape memory polymer composite material layer, be connected with alloy material layer.
The preparation method of the shape memory polymer composite body of spatially-expanded three-wing beam of the present invention is finished by the following step:
Step 1: selected shape memory polymer material and fibre reinforced materials;
Step 2:, the shape memory polymer material for preparing is coated on the positive and negative surface of fibre reinforced materials with shape memory polymer material and hardening agent proportioning in proportion;
Step 3: have the surface of the fibre reinforced materials of shape memory polymer material to lay resistance screen coated, at the coated shape memory polymer material in resistance screen surface, promptly form shape memory polymer composite material again;
Step 4: uncured shape memory polymer composite material is placed in the vacuum bag, vacuumize the vacuum bag internal gas pressure is reached-0.1MPa, with adhesive tape shape memory polymer composite material and vacuum bag evenly are wrapped on the mold outer surface then and are cured;
Step 5: be cured in autoclave, solidification temperature is 65～85 ℃, and ambient humidity is 30～100RH, and 8～24 hours set times of early stage, the later stage solidification temperature is between 30～65 ℃, 12～48 hours time;
Step 6: with the shape memory polymer composite material demoulding that is cured, and the shape memory polymer composite material blank carried out cutting, inhomogeneous and irregular part around the cutting;
Step 7: make shape memory polymer composite material be bent to form stack shape;
Step 8: select alloy material, alloy material is fixed on by surperficial perforate on the medial surface in shape memory polymer composite material knee, forms shape memory polymer composite body.
The shape memory polymer composite body of spatially-expanded three-wing beam of the present invention has specific strength height, specific modulus height, material weight control ability little, that beam is launched is strong, space beam expansion mechanicalness is simple and launch the high advantage of reliability, and it also has shape memory characteristic simultaneously.The preparation method of the shape memory polymer composite body of spatially-expanded three-wing beam of the present invention has the technological operation characteristic of simple.
Description of drawings
Fig. 1 is the structural representation after the shape memory polymer composite body demoulding, and Fig. 2 is the structural representation of the shape memory polymer composite body of spatially-expanded three-wing beam, and Fig. 3 is the structural representation of spatially-expanded three-wing beam.
Embodiment
Embodiment one: specify present embodiment below in conjunction with Fig. 1 and Fig. 2, present embodiment is made up of shape memory polymer composite material layer 1 and alloy material layer 2, described shape memory polymer composite material layer 1 be shaped as the stack shape, be equipped with resistance screen 3 in the shape memory polymer composite material layer 1, on the medial surface of the crooked position of shape memory polymer composite material layer 1, be connected with alloy material layer 2.The contraction process of the shape memory polymer composite body of a complete spatially-expanded three-wing beam: the alloy material layer in the shape memory polymer composite body joins with longeron 4, energising makes structure reach the transfer of shapes temperature of shape memory polymer composite material to shape memory polymer composite material layer built-in resistor silk screen, and this moment, the shape memory polymer composite material layer was issued to deployed condition in the external force driving action; Keep deployed condition, then under the condition that keeps external force, stop resistance screen energising heating, to reduce temperature to the transfer of shapes temperature of composite material of shape memory layer; Return to overlaying state, then remove external force, make the composite material of shape memory layer reach the transfer of shapes temperature to resistance screen energising heating again, at this moment the composite material of shape memory layer will automatically return to original overlaying state.
Embodiment two: the following present embodiment that specifies, the layer of shape memory polymer composite material described in the present embodiment 1 is made up of shape memory polymer material layer and fibre reinforced materials layer; The weight percent content of described shape memory polymer material layer in shape memory polymer composite material layer 1 is 40～99%, the weight percent content of described fibre reinforced materials layer in shape memory polymer composite material layer 1 is 1～60%, and other composition and annexation are with embodiment one.
Embodiment three: the following present embodiment that specifies, shape memory polymer material described in the present embodiment is the thermoplasticity shape-memory polymer or the thermoset shape memory polymkeric substance of shape memory polyurethane resin, polyurethanes shape-memory polymer, isocyanates shape-memory polymer, phenylethylene shape-memory polymer, epoxies, and other composition and annexation are with embodiment two.
Embodiment four: the following present embodiment that specifies, fibre reinforced materials described in the present embodiment is the chopped strand of graphite fiber, carbon fiber, glass fibre, boron fibre, Kevlar fiber or above fabric or above fiber, and carbon black, dag or carbon nano-tube, other composition and annexation are with embodiment two.
Embodiment five: the following present embodiment that specifies, the resistance screen 3 described in the present embodiment is metallic resistance silk screen, ceramic resistor silk screen or polymer resistive silk screen.
As described in Figure 3, the shape memory polymer composite body of the spatially-expanded three-wing beam in the above-mentioned embodiment is fixed on the longeron 4 by lip-deep hole, can on longeron, move up and down, it is the stack of curling in emission process, occupation space is very little, the expansion of can stretching as required in the use of space, three groups of complexs are fixed on the longeron 4 by the hole in knee, form spatially-expanded three-wing beam.
Embodiment six: specify present embodiment below in conjunction with Fig. 1, Fig. 2 and Fig. 3, present embodiment is finished by the following step:
Step 1: selected shape memory polymer material and fibre reinforced materials; What adopt in the present embodiment is phenylethylene thermoset shape memory polymkeric substance, because thermosetting polymer has good temperature tolerance and environment resistant, fibre reinforced materials adopts carbon-fiber cloth, and model is T-300;
Step 2: with shape memory polymer material and hardening agent proportioning in proportion, the shape memory polymer material for preparing is coated on the positive and negative surface of fibre reinforced materials, the density of shape memory polymer composite material is less than 2g/cm
2Shape memory polymer material and hardening agent were by 28: 1 proportionings in the present embodiment, and the number of plies of fibre reinforced materials and shop layer direction can be provided with as requested;
Step 3: have the surface of the fibre reinforced materials of shape memory polymer material to lay resistance screen coated, at the coated shape memory polymer material in resistance screen surface, promptly form shape memory polymer composite material again;
Step 4: uncured shape memory polymer composite material is placed in the vacuum bag, vacuumize the vacuum bag internal gas pressure is reached-0.1MPa, with adhesive tape shape memory polymer composite material and vacuum bag evenly are wrapped on the mold outer surface then and are cured, can further reduce the thickness of compound substance like this;
Step 5: be cured in autoclave, solidification temperature is 65～85 ℃, and ambient humidity is 30～100RH, and 8～24 hours set times of early stage, the later stage solidification temperature is between 30～65 ℃, 12～48 hours time;
Step 6: with the shape memory polymer composite material demoulding that is cured, and to the shape memory polymer composite material blank carry out cutting, the cutting around inhomogeneous and irregular part;
Step 7: make shape memory polymer composite material be bent to form stack shape;
Step 8: select alloy material, alloy material is fixed on by surperficial perforate on the medial surface in shape memory polymer composite material knee, forms shape memory polymer composite body.
Embodiment seven: mould is a metal die in the present embodiment step 3, the radian of mould is 130 °-180 °, the length of mould is 10 times of its bottom surface radius of circle, mould adopts cylinder mold in the present embodiment, its bottom surface radius is 20mm, length is 200mm, and other step is with embodiment five.Adopt the mechanical property of the compound substance after such mould can guarantee to solidify to be subjected to the minimum that influences of outer boundary effect, the size of the radius-of-curvature of compound substance is also determining the size and the active area of the power output of material in structure simultaneously.
Claims (7)
1, the shape memory polymer composite body of spatially-expanded three-wing beam, it is characterized in that it is made up of shape memory polymer composite material layer (1) and alloy material layer (2), described shape memory polymer composite material layer (1) be shaped as the stack shape, be equipped with resistance screen (3) in the shape memory polymer composite material layer (1), on the medial surface of the crooked position of shape memory polymer composite material layer (1), be connected with alloy material layer (2).
2, the shape memory polymer composite body of spatially-expanded three-wing beam according to claim 1 is characterized in that described shape memory polymer composite material layer (1) is made up of shape memory polymer material layer and fibre reinforced materials layer; The weight percent content of described shape memory polymer material layer in shape memory polymer composite material layer (1) is 40～99%, and the weight percent content of described fibre reinforced materials layer in shape memory polymer composite material layer (1) is 1～60%.
3, the shape memory polymer composite body of spatially-expanded three-wing beam according to claim 1 is characterized in that described shape memory polymer material is the thermoplasticity shape-memory polymer or the thermoset shape memory polymkeric substance of shape memory polyurethane resin, polyurethanes shape-memory polymer, isocyanates shape-memory polymer, phenylethylene shape-memory polymer, epoxies.
4, the shape memory polymer composite body of spatially-expanded three-wing beam according to claim 1, it is characterized in that described fibre reinforced materials is the chopped strand of graphite fiber, carbon fiber, glass fibre, boron fibre, Kevlar fiber or above fabric or above fiber, and carbon black, dag or carbon nano-tube.
5, the shape memory polymer composite body of spatially-expanded three-wing beam according to claim 1 is characterized in that described resistance screen (3) is metallic resistance silk screen, ceramic resistor silk screen or polymer resistive silk screen.
6, the preparation method of the shape memory polymer composite body of spatially-expanded three-wing beam is characterized in that it is finished by the following step:
Step 1: selected shape memory polymer material and fibre reinforced materials;
Step 2:, the shape memory polymer material for preparing is coated on the positive and negative surface of fibre reinforced materials with shape memory polymer material and hardening agent proportioning in proportion;
Step 3: have the fibre reinforced materials surface of shape memory polymer material to lay resistance screen coated, at the coated shape memory polymer material in resistance screen surface, promptly form shape memory polymer composite material again;
Step 4: uncured shape memory polymer composite material is placed in the vacuum bag, vacuumize the vacuum bag internal gas pressure is reached-0.1MPa, with adhesive tape shape memory polymer composite material and vacuum bag evenly are wrapped on the mold outer surface then and are cured;
Step 5: be cured in autoclave, solidification temperature is 65～85 ℃, and ambient humidity is 30～100RH, and 8～24 hours set times of early stage, the later stage solidification temperature is between 30～65 ℃, 12～48 hours time;
Step 6: with the shape memory polymer composite material demoulding that is cured, and to the shape memory polymer composite material blank carry out cutting, the cutting around inhomogeneous and irregular part;
Step 7: make shape memory polymer composite material be bent to form stack shape;
Step 8: select alloy material, alloy material is fixed on by surperficial perforate on the medial surface in shape memory polymer composite material knee, forms shape memory polymer composite body.
7, the preparation method of the shape memory polymer composite body of spatially-expanded three-wing beam according to claim 6 is characterized in that mould is a metal die in the step 4, and the radian of mould is 130 °-180 °, and the length of mould is 10 times of its bottom surface radius of circle.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8608890B2 (en) | 2010-11-11 | 2013-12-17 | Spirit Aerosystems, Inc. | Reconfigurable shape memory polymer tooling supports |
| US8734703B2 (en) | 2010-11-11 | 2014-05-27 | Spirit Aerosystems, Inc. | Methods and systems for fabricating composite parts using a SMP apparatus as a rigid lay-up tool and bladder |
| US8815145B2 (en) | 2010-11-11 | 2014-08-26 | Spirit Aerosystems, Inc. | Methods and systems for fabricating composite stiffeners with a rigid/malleable SMP apparatus |
| US8877114B2 (en) | 2010-11-11 | 2014-11-04 | Spirit Aerosystems, Inc. | Method for removing a SMP apparatus from a cured composite part |
| EP2252450A4 (en) * | 2008-02-19 | 2015-07-08 | Composite Technology Dev Inc | Highly deformable shape memory polymer core composite deformable sandwich panel |
| CN105207577A (en) * | 2015-11-09 | 2015-12-30 | 哈尔滨工业大学 | Flexible solar cell array based on shape memory polymer composite material and expansion method of flexible solar cell array |
| CN105461946A (en) * | 2015-12-14 | 2016-04-06 | 哈尔滨工业大学 | Deformation-controllable shape memory composite material and deformation method thereof |
| CN110304246A (en) * | 2019-06-28 | 2019-10-08 | 华中科技大学 | A kind of bionical folding wings and its preparation method and application based on 4D printing |
| CN111323987A (en) * | 2020-03-19 | 2020-06-23 | 哈尔滨工业大学 | Space expandable shading structure |
| CN111347459A (en) * | 2018-12-20 | 2020-06-30 | 哈尔滨工业大学 | Spatial telescopic mechanical arm based on 4D printing and telescopic method thereof |
| CN111638619A (en) * | 2020-05-19 | 2020-09-08 | 北京航空航天大学 | Light small-size deployable film lens hood based on combined material buckled plate |
| CN112537057A (en) * | 2020-11-26 | 2021-03-23 | 湖南碳谷新材料有限公司 | Carbon-carbon support ring preparation mold and preparation method |
| CN114415447A (en) * | 2022-01-27 | 2022-04-29 | 北京航空航天大学 | Large-scale space expandable film hood based on composite material large storage ratio superelastic structure |
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2007
- 2007-04-19 CN CN 200710072055 patent/CN101055344A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2252450A4 (en) * | 2008-02-19 | 2015-07-08 | Composite Technology Dev Inc | Highly deformable shape memory polymer core composite deformable sandwich panel |
| US8608890B2 (en) | 2010-11-11 | 2013-12-17 | Spirit Aerosystems, Inc. | Reconfigurable shape memory polymer tooling supports |
| US8734703B2 (en) | 2010-11-11 | 2014-05-27 | Spirit Aerosystems, Inc. | Methods and systems for fabricating composite parts using a SMP apparatus as a rigid lay-up tool and bladder |
| US8815145B2 (en) | 2010-11-11 | 2014-08-26 | Spirit Aerosystems, Inc. | Methods and systems for fabricating composite stiffeners with a rigid/malleable SMP apparatus |
| US8877114B2 (en) | 2010-11-11 | 2014-11-04 | Spirit Aerosystems, Inc. | Method for removing a SMP apparatus from a cured composite part |
| US8945455B2 (en) | 2010-11-11 | 2015-02-03 | Spirit Aerosystems, Inc. | Reconfigurable shape memory polymer support tooling |
| US8945325B2 (en) | 2010-11-11 | 2015-02-03 | Spirit AreoSystems, Inc. | Methods and systems for forming integral composite parts with a SMP apparatus |
| US8951375B2 (en) | 2010-11-11 | 2015-02-10 | Spirit Aerosystems, Inc. | Methods and systems for co-bonding or co-curing composite parts using a rigid/malleable SMP apparatus |
| US8974217B2 (en) | 2010-11-11 | 2015-03-10 | Spirit Aerosystems, Inc. | Reconfigurable shape memory polymer tooling supports |
| US9073240B2 (en) | 2010-11-11 | 2015-07-07 | Spirit Aerosystems, Inc. | Reconfigurable shape memory polymer tooling supports |
| CN105207577A (en) * | 2015-11-09 | 2015-12-30 | 哈尔滨工业大学 | Flexible solar cell array based on shape memory polymer composite material and expansion method of flexible solar cell array |
| CN105461946A (en) * | 2015-12-14 | 2016-04-06 | 哈尔滨工业大学 | Deformation-controllable shape memory composite material and deformation method thereof |
| CN105461946B (en) * | 2015-12-14 | 2017-11-17 | 哈尔滨工业大学 | Deformation controllable composite material of shape memory and its deformation method |
| CN111347459A (en) * | 2018-12-20 | 2020-06-30 | 哈尔滨工业大学 | Spatial telescopic mechanical arm based on 4D printing and telescopic method thereof |
| CN110304246A (en) * | 2019-06-28 | 2019-10-08 | 华中科技大学 | A kind of bionical folding wings and its preparation method and application based on 4D printing |
| CN111323987A (en) * | 2020-03-19 | 2020-06-23 | 哈尔滨工业大学 | Space expandable shading structure |
| CN111323987B (en) * | 2020-03-19 | 2021-06-04 | 哈尔滨工业大学 | Space expandable shading structure |
| CN111638619A (en) * | 2020-05-19 | 2020-09-08 | 北京航空航天大学 | Light small-size deployable film lens hood based on combined material buckled plate |
| CN111638619B (en) * | 2020-05-19 | 2021-08-20 | 北京航空航天大学 | Light small-size deployable film lens hood based on combined material buckled plate |
| CN112537057A (en) * | 2020-11-26 | 2021-03-23 | 湖南碳谷新材料有限公司 | Carbon-carbon support ring preparation mold and preparation method |
| CN114415447A (en) * | 2022-01-27 | 2022-04-29 | 北京航空航天大学 | Large-scale space expandable film hood based on composite material large storage ratio superelastic structure |
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