CN109320196B - Three-dimensional hollow woven piece reinforced silica aerogel composite material - Google Patents
Three-dimensional hollow woven piece reinforced silica aerogel composite material Download PDFInfo
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- CN109320196B CN109320196B CN201811449347.9A CN201811449347A CN109320196B CN 109320196 B CN109320196 B CN 109320196B CN 201811449347 A CN201811449347 A CN 201811449347A CN 109320196 B CN109320196 B CN 109320196B
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- 239000002131 composite material Substances 0.000 title claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000004965 Silica aerogel Substances 0.000 title claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010703 silicon Substances 0.000 claims abstract description 20
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000004964 aerogel Substances 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 73
- 239000000835 fiber Substances 0.000 claims description 14
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 9
- 238000009954 braiding Methods 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- DSVGFKBFFICWLZ-UHFFFAOYSA-N 1-fluoro-4-isocyanatobenzene Chemical compound FC1=CC=C(N=C=O)C=C1 DSVGFKBFFICWLZ-UHFFFAOYSA-N 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 229920002050 silicone resin Polymers 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 claims description 2
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- 230000004083 survival effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5035—Silica
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
Abstract
The application discloses a three-dimensional hollow woven piece reinforced silica aerogel composite material, which comprises an upper layer, a lower layer and an intermediate layer arranged between the upper layer and the lower layer; the upper layer and the lower layer have the same structure and are three-dimensional hollow structures formed by constructing three-dimensional hollow woven pieces according to a certain shape and height; the surfaces of the upper layer and the lower layer are respectively coated with an organic silicon resin coating; the middle layer is a framework support formed by pile warps; aerogel is filled in the upper layer, the lower layer and the middle layer respectively. The composite material can be used as a missile seeker radome material, and is beneficial to prolonging the service life of the radome.
Description
Technical Field
The application relates to the field of composite materials, in particular to a three-dimensional hollow braid reinforced silica aerogel composite material.
Background
In war, as detection technology and accurate tracking interception systems are more advanced, unprecedented challenges are presented to missile survival. Faster speed, more accurate guidance and ultra-strong stealth become important technologies for leading the bullet to survive in the war. In the flying process of the missile, the pneumatic heating causes extremely high external temperature of the seeker radome, so that the heat radiation is aggravated, and how to reduce the external temperature and improve the wave transmission and stealth performance becomes an important technical research target in the world. The special materials and structures are used for achieving the purpose of detectability, the detectable characteristic signals of the missile can be effectively reduced, the efficiency of a combat platform is improved, and the survival and outburst prevention capability of the target are improved. Therefore, in order to meet the development of the technical and tactical indexes of missiles towards the directions of high Mach number, middle and long distance, beyond visual range and all weather, the radome material with excellent comprehensive performances such as wave penetration resistance, stealth, temperature resistance and the like is urgently needed to be developed, and the new material is developed by utilizing the advanced technology of the modern industry through a new technology so as to adapt to the requirements of the improvement of the speed of the missiles and the increase of the load on the radome material.
Disclosure of Invention
The application aims to overcome the defects of the prior art and provides a three-dimensional hollow woven piece reinforced silica aerogel composite material, which comprises an upper layer, a lower layer and an intermediate layer arranged between the upper layer and the lower layer; the upper layer and the lower layer have the same structure and are three-dimensional hollow structures formed by constructing three-dimensional hollow woven pieces according to a certain shape and height; the surfaces of the upper layer and the lower layer are respectively coated with an organic silicon resin coating; the middle layer is a framework support formed by pile warps; aerogel is filled in the upper layer, the lower layer and the middle layer respectively.
As an improvement, the three-dimensional hollow braid is an artificial fiber braid.
As an improvement, the three-dimensional hollow braid is any one of a carbon fiber braid, a quartz fiber braid, and a silicon carbide fiber braid.
As an improvement, the organic silicon resin is nano SiO 2 The thickness of the coating is 0.5-10mm.
As improvement, the heights of the upper layer and the lower layer are respectively and independently 5-40mm, and the space forms are respectively and independently any one of 8, opening and V.
Meanwhile, the application also provides a method for preparing the composite material, which comprises the following steps:
the first mass percent is X: (5-X): preparing organosilicon resin, fiber and aerogel raw materials according to a proportion of 0.5, and pre-treating for later use, wherein X is 2-4.5;
secondly, arranging a three-dimensional hollow structure formed by three-dimensional hollow braiding pieces with a certain height and a certain shape into an upper layer and a lower layer, placing velvet warps in the middle layer between the upper layer and the lower layer, and tightly connecting the velvet warps (20), the upper layer and the lower layer by filling aerogel;
and thirdly, coating an organic silicon resin coating on the outer surfaces of the upper layer and the lower layer to obtain the three-dimensional hollow woven piece reinforced silica aerogel composite material.
As an improvement, the organic silicon resin coating is nano SiO 2 The thickness of the coating is 0.5-10mm.
As an improvement, the three-dimensional hollow braid is any one of a carbon fiber braid, a quartz fiber braid, and a silicon carbide fiber braid.
As improvement, the heights of the upper layer and the lower layer are respectively and independently 5-40mm, and the space forms are respectively and independently any one of 8, opening and V.
The application provides a three-dimensional hollow woven piece reinforced silica aerogel composite material, which is prepared from nano SiO 2 The improved organic silicon resin is used as a coating, and the three-dimensional hollow weaving technology is combined with a sol-gel forming process to prepare the composite material. The material can be used for manufacturing the seeker, and can realize wave transmission, stealth and temperature resistance integration while meeting the performances of high strength, rain erosion resistance and the like, thereby further improving the depth striking prevention capability of the missile and the survival capability of a battlefield.
In particular, the application has the advantages that:
(1) The hollow braiding piece is used as a carrier of aerogel, so that the composite material has stronger mechanical strength.
(2) The nano SiO2 modified organic silicon resin can effectively improve the heat resistance and heat resistance of the composite material.
Drawings
FIG. 1 is a schematic diagram of the structure of the present application.
Wherein 10 is a three-dimensional hollow braid; 20 is the pile warp; 30 is an aerogel; 40 is nano SiO 2 And (3) a modified organic silicon resin coating.
Detailed Description
The present application is further illustrated below in conjunction with specific embodiments, it being understood that these embodiments are meant to be illustrative of the application only and not limiting the scope of the application, and that modifications of the application, which are equivalent to those skilled in the art to which the application pertains, will fall within the scope of the appended claims.
A three-dimensional hollow braid reinforced silica aerogel composite material comprises an upper layer, a lower layer and an intermediate layer arranged between the upper layer and the lower layer; the upper layer and the lower layer have the same structure and are three-dimensional hollow structures formed by constructing the three-dimensional hollow woven piece 10 according to a certain shape and height; the surfaces of the upper and lower layers are coated with a silicone resin coating 40, respectively; the middle layer is a framework support formed by pile warps 20; aerogel is filled in the upper layer, the lower layer and the middle layer respectively.
The three-dimensional hollow braid 10 is an artificial fiber braid, preferably any one of a carbon fiber braid, a quartz fiber braid, and a silicon carbide fiber braid. The organic silicon resin is nano SiO 2 The thickness of the coating is 0.5-10mm. The heights of the upper layer and the lower layer are respectively and independently 5-40mm, and the space forms are respectively and independently any one of 8, opening and V shape.
Meanwhile, a method for preparing the composite material comprises the following specific steps:
the first mass percent is X: (5-X): preparing organosilicon resin, fiber and aerogel raw materials according to a proportion of 0.5, and pre-treating for later use, wherein X is 2-4.5;
secondly, arranging a three-dimensional hollow structure formed by the three-dimensional hollow woven piece 10 with a certain height and a certain shape into an upper layer and a lower layer, placing the pile warp 20 in the middle layer between the upper layer and the lower layer, and tightly connecting the pile warp 20, the upper layer and the lower layer by filling aerogel;
and thirdly, coating an organic silicon resin coating layer (40) on the outer surfaces of the upper layer and the lower layer to obtain the three-dimensional hollow woven piece reinforced silica aerogel composite material.
Wherein the organic silicon resin coating 40 is nano SiO 2 The thickness of the coating is 0.5-10mm. The fibers used in the three-dimensional hollow braid 10 are carbon fibers, quartz fibers, silicon carbide fibers. The three-dimensional hollow woven piece 10 has the height of 5-40mm and any one of 8, mouth and V shape.
Nano SiO 2 The modified organic silicon resin is nano SiO coated with 4-fluorophenyl isocyanate and aluminum hydroxide 2 Added into epoxy silicone resinObtained by adding nano SiO, wherein the mass ratio of 4-fluorophenyl isocyanate to epoxy organic silicon resin is 6-8, the modification effect is best 2 After that, the agglomeration effect is overcome, and the corrosion resistance is improved.
Example 1
A three-dimensional hollow woven piece reinforced silica aerogel composite material is shown in fig. 1, wherein a three-dimensional hollow woven piece 10 is taken as a framework, a middle pile warp 20 is taken as a framework support, aerogel 30 is dissolved in the framework to form an obvious sandwich structure, the pile warp 20 enables the interlayers to be hinged together, and nano SiO is coated on the surface of the sandwich structure 2 The modified silicone resin coating 40 forms a high temperature resistant, wave transparent, heat resistant integrated three-dimensional hollow braid reinforced silica aerogel composite.
The foregoing is a single embodiment of the present application, but the design concept of the present application is not limited thereto, and any insubstantial modification of the present application by using the concept should be construed as infringement of the scope of the present application. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present application will still fall within the protection scope of the technical solution of the present application.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (1)
1. The three-dimensional hollow woven piece reinforced silica aerogel composite material is characterized by comprising an upper layer, a lower layer and an intermediate layer arranged between the upper layer and the lower layer; the upper layer and the lower layer have the same structure and are three-dimensional hollow structures formed by constructing three-dimensional hollow woven pieces (10) according to a certain shape and height; the surfaces of the upper layer and the lower layer are respectively coated with a silicone resin coating (40); the middle layer is a framework support formed by pile warps (20); aerogel is filled in the upper layer, the lower layer and the middle layer respectively;
the three-dimensional hollow braiding piece (10) is any one of a carbon fiber braiding piece, a quartz fiber braiding piece and a silicon carbide fiber braiding piece;
the organic silicon resin is nano SiO 2 Modified organic silicon resin, the thickness of the coating is 0.5-10mm;
the heights of the upper layer and the lower layer are respectively and independently 5-40mm, and the space forms are respectively and independently any one of 8, opening and V shape;
wherein nano SiO 2 The modified organic silicon resin comprises the following components: nano SiO coated with 4-fluorophenyl isocyanate and aluminium hydroxide 2 Adding the epoxy organic silicon resin into the epoxy organic silicon resin, wherein the mass ratio of the 4-fluorophenyl isocyanate to the epoxy organic silicon resin is 6-8;
the method for preparing the composite material comprises the following steps:
the first mass percent is X: (5-X): preparing organosilicon resin, fiber and aerogel raw materials according to a proportion of 0.5, and pre-treating for later use, wherein X is 2-4.5;
secondly, arranging a three-dimensional hollow structure formed by three-dimensional hollow braiding pieces (10) with a certain height and a certain shape into an upper layer and a lower layer, placing a velvet (20) in the middle layer between the upper layer and the lower layer, and tightly connecting the velvet (20), the upper layer and the lower layer by filling aerogel;
and thirdly, coating an organic silicon resin coating layer (40) on the outer surfaces of the upper layer and the lower layer to obtain the three-dimensional hollow woven piece reinforced silica aerogel composite material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811449347.9A CN109320196B (en) | 2018-11-30 | 2018-11-30 | Three-dimensional hollow woven piece reinforced silica aerogel composite material |
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| CN201811449347.9A CN109320196B (en) | 2018-11-30 | 2018-11-30 | Three-dimensional hollow woven piece reinforced silica aerogel composite material |
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| CN109320196A CN109320196A (en) | 2019-02-12 |
| CN109320196B true CN109320196B (en) | 2023-11-10 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111478040A (en) * | 2020-05-28 | 2020-07-31 | 江苏亨鑫科技有限公司 | Antenna beautifying cover plate, manufacturing process and 5G antenna beautifying cover |
| CN111674122A (en) * | 2020-06-30 | 2020-09-18 | 南京玻璃纤维研究设计院有限公司 | Broadband multi-angle wave-transparent composite material and preparation method thereof |
| CN115493455B (en) * | 2022-09-27 | 2023-09-22 | 江苏领瑞新材料科技有限公司 | Preparation method of high-strength fiber material with bulletproof function |
| CN118099726A (en) * | 2024-03-07 | 2024-05-28 | 北京联科泰华技术发展有限公司 | Gradient functional composite material radome and preparation method thereof |
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Application publication date: 20190212 Assignee: SUZHOU YIHE YONGLI NEW ENERGY Co.,Ltd. Assignor: Nanjing Tech University Contract record no.: X2023980053999 Denomination of invention: A three-dimensional hollow braid reinforced silica aerogel composite Granted publication date: 20231110 License type: Common License Record date: 20231226 |
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