CN208346403U - A kind of anti-oxidation high temperature resistant composite fibrofelt - Google Patents
A kind of anti-oxidation high temperature resistant composite fibrofelt Download PDFInfo
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- CN208346403U CN208346403U CN201721670327.5U CN201721670327U CN208346403U CN 208346403 U CN208346403 U CN 208346403U CN 201721670327 U CN201721670327 U CN 201721670327U CN 208346403 U CN208346403 U CN 208346403U
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Abstract
The utility model relates to a kind of anti-oxidation high temperature resistant composite fibrofelt more particularly to a kind of anti-oxidation high temperature resistant composite fibrofelts for being used to prepare lightweight heat insulation material matrix, belong to heat insulation material technical field.It is combined in the utility model using high-temperature fibre net and anti-oxidant heat insulation fiber net, every layer is stitched together using needling technique, high-temperature fibre is capable of forming the ablating heat shield under hyperthermal environments to this structure under high temperature environment, and the siliceous object of melting that anti-oxidant heat insulation fiber is formed at high temperature can be covered on ablation layer surface, to prevent oxygen environment to the damage of carbon fiber, the long-time anti-ablation ability of the structure is improved.
Description
Technical field
The utility model relates to a kind of anti-oxidation high temperature resistant composite fibrofelts more particularly to one kind to be used to prepare lightweight solar heat protection
The anti-oxidation high temperature resistant composite fibrofelt of material matrix, belongs to heat insulation material technical field, when this fibrofelt is mainly used for long
Between prevent heat-insulated, the high temperature of ablative thermal protection and rocket engine especially in high-speed aircraft flight course under hot environment
It is heat-insulated that there is good application value.
Background technique
Fibrofelt is used as extensively due to its lower global density, higher voids content and good interlaminar strength
The reinforcement of lightweight solar heat protection heat-barrier material, this reinforcement can provide the Optimality that low-density, height is heat-insulated, combines by force for material
Energy.
Carbon fiber felt due to its excellent high-temperature stability and good mechanical property, be commonly used as airship heat insulation material with
And the high-temperature components heat-barrier material such as rocket engine, the forming process of carbon fiber felt are that carbon fiber is first combed into thin fibre from level to level
Net is tieed up, then each layer web is stitched together using needling technique, three-dimensional overall structure is formed, since carbon fiber is intrinsic
Oxidation characteristic (starting to aoxidize higher than 450 degree) prevents it from using in the high temperature environment for a long time, and carbon fiber itself thermal conductivity
Rate is higher, and heat-proof quality is bad.
Utility model content
The technology of the utility model solves the problems, such as: overcome the deficiencies in the prior art, proposes that a kind of anti-oxidation high temperature resistant is multiple
Condensating fiber felt.
The technical solution of the utility model is:
A kind of anti-oxidation high temperature resistant composite fibrofelt, fibrofelt include high-temperature fibre net and anti-oxidant heat insulation fiber net,
High-temperature fibre net connects in such a way that needle pierces integral in an alternate fashion with anti-oxidant heat insulation fiber net.
Both high-temperature fibre net and anti-oxidant heat insulation fiber net are initially formed recombiner unit, then will in such a way that needle pierces
Several layers recombiner unit, which connects into, is integrally formed final composite fibrofelt.
The two be initially formed recombiner unit refer to the two is spread it is stacked together.
The high-temperature fibre net is carbon fiber, with a thickness of 0.1~0.5mm.
The high-temperature fibre net further includes silicon based fiber, is 100% calculating, silicon with the gross mass of high-temperature fibre net
The mass content of base fiber is not more than 50%.
The anti-oxidant heat insulation fiber net is silicon based fiber, with a thickness of 0.1~0.5mm.
The anti-oxidant heat insulation fiber net further includes carbon fiber, with the gross mass of anti-oxidant heat insulation fiber net for 100%
It calculates, the mass content of carbon fiber is not more than 50%.
The carbon fiber is polyacrylonitrile-based carbon fibre, viscose-based carbon fiber or asphalt base carbon fiber.
The polyacrylonitrile-based carbon fibre is the carbon fibre that polyacrylonitrile passes through that high-temperature process obtains；
The viscose-based carbon fiber is the carbon fibre that viscose passes through that high-temperature process obtains；
The asphalt base carbon fiber is the carbon fibre that pitch passes through that high-temperature process obtains.
The silicon based fiber is the silica containing inorfils such as glass fibre, high silica fiber or quartz fibre.
Beneficial effect
(1) it is combined in the utility model using high-temperature fibre net and anti-oxidant heat insulation fiber net, it will using needling technique
Every layer is stitched together, and to be capable of forming the heat of ablation under hyperthermal environments anti-for high-temperature fibre under high temperature environment for this structure
Shield, and the siliceous object of melting that anti-oxidant heat insulation fiber is formed at high temperature can be covered on ablation layer surface, to prevent oxygen ring
Damage of the border to carbon fiber improves the long-time anti-ablation ability of the structure.
(2) fiber containing element silicon is increased in high-temperature fibre net and anti-oxidant heat insulation fiber net in the utility model,
The addition of this low thermal conductivity material can reduce integrally-built thermal conductivity, prevent transmission of the heat in structure, substantially mention
High heat-proof quality；
(3) forming technique, the technical maturity are pierced using needle in the utility model preparation method, universal strong is easy to real
It is existing, practicability with higher；
(4) can structure be designed and is controlled according to the actual needs in the utility model preparation method, formed product
Size is not size-limited, and various complex configurations is suitble to be produced；This technology of preparing can satisfy all trades and professions to superelevation
The requirement of warm thermal insulation property, has a good application prospect.
(5) fibrofelt of the utility model can obstruct damage of the oxygen to carbon fiber, reach prolonged anti-insulation requirement；
And oxidation resistance is strong, heat-proof quality is strong.
Detailed description of the invention
Fig. 1 is the schematic diagram of the fibrous mat structure of the utility model；
Fig. 2 is the structural schematic diagram of the embodiments of the present invention 1；
Fig. 3 is the structural schematic diagram of the embodiments of the present invention 2；
Fig. 4 is the structural schematic diagram of the embodiments of the present invention 3.
Specific embodiment
As shown in Figure 1, a kind of anti-oxidation high temperature resistant composite fibrofelt, the fibrofelt include high-temperature fibre net 1 and antioxygen
Change heat insulation fiber net 2, both high-temperature fibre net 1 and anti-oxidant heat insulation fiber net 2 are initially formed recombiner unit, then pierce by needle
Mode several layers recombiner unit is connected into final composite fibrofelt is integrally formed；The two is initially formed recombiner unit and refers to two
Person's paving is stacked together；
The high-temperature fibre net 1 includes carbon fiber and silicon based fiber, high-temperature fibre net 1 with a thickness of 0.1~
0.5mm, wherein carbon fiber mass content is 50%~100%, and silicon based fiber mass content is 0%~50%；
The anti-oxidant heat insulation fiber net 2 include carbon fiber and silicon based fiber, anti-oxidant heat insulation fiber net 2 with a thickness of
0.1~0.5mm, wherein carbon fiber mass content is 0%~50%, and silicon based fiber mass content is 50%~100%；
The carbon fiber is polyacrylonitrile-based carbon fibre, viscose-based carbon fiber or asphalt base carbon fiber；
The polyacrylonitrile-based carbon fibre is the carbon fibre that polyacrylonitrile passes through that high-temperature process obtains；
The viscose-based carbon fiber is the carbon fibre that viscose passes through that high-temperature process obtains；
The asphalt base carbon fiber is the carbon fibre that pitch passes through that high-temperature process obtains；
The silicon based fiber is the silica containing inorfils such as glass fibre, high silica fiber or quartz fibre.
In order to further appreciate that the structure, feature and other purposes of the utility model, now in conjunction with attached drawing and appended implementation
Detailed description are as follows for example, and embodiment described is merely to illustrate the technical solution of the utility model, and non-limiting practical new
Type.
Embodiment 1
As shown in Fig. 2, a kind of anti-oxidation high temperature resistant composite fibrofelt, including high-temperature fibre net 1, high-temperature fibre net 1
Thickness 0.2mm, wherein polyacrylonitrile carbon fiber content is 100%, anti-oxidant heat insulation fiber net 2, and anti-oxidant heat insulation fiber net 2 is thick
0.2mm is spent, wherein quartz fibre content is 100%, high-temperature fibre net 1 is initially formed with anti-oxidant heat insulation fiber net 2 compound
Several layers recombiner unit is connected by needle thorn and final composite fibrofelt is integrally formed by unit, and composite fibrofelt density is
0.2g/cm3, thermal conductivity 0.07w/m.K.
Embodiment 2
As shown in figure 3, a kind of anti-oxidation high temperature resistant composite fibrofelt, including high-temperature fibre net 1, high-temperature fibre net 1
Thickness 0.5mm, wherein viscose-based carbon fiber content is 50%, content of glass fiber 50%, and anti-oxidant heat insulation fiber net 2 resists
2 thickness 0.5mm of heat insulation fiber net is aoxidized, wherein content of glass fiber 50%, quartz fibre content is 50%, by high-temperature fibre
Net 1 and anti-oxidant heat insulation fiber net 2 are initially formed recombiner unit, connect into several layers recombiner unit by needle thorn and are integrally formed most
Whole composite fibrofelt, composite fibrofelt density are 0.18g/cm3, thermal conductivity 0.05w/m.K.
Embodiment 3
As shown in figure 4, a kind of anti-oxidation high temperature resistant composite fibrofelt, including high-temperature fibre net 1, high-temperature fibre net 1
Thickness 0.2mm, wherein viscose-based carbon fiber content is 100%, anti-oxidant heat insulation fiber net 2, anti-oxidant 2 thickness of heat insulation fiber net
0.5mm, wherein viscose glue base fiber content 20%, quartz fibre content is 80%, by high-temperature fibre net 1 and anti-oxidant heat-insulated fibre
Dimension net 2 is initially formed recombiner unit, connects into several layers recombiner unit by needle thorn and final composite fibrofelt is integrally formed, compound
Fibrofelt density is 0.18g/cm3, thermal conductivity 0.08w/m.K.
The optimal specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.
The content being not described in detail in the utility model specification belongs to the well-known technique of professional and technical personnel in the field.
Claims (8)
1. a kind of anti-oxidation high temperature resistant composite fibrofelt, it is characterised in that: the fibrofelt includes high-temperature fibre net and anti-oxidant
Heat insulation fiber net, high-temperature fibre net and anti-oxidant heat insulation fiber net connect into such a way that needle pierces whole in an alternate fashion
Body.
2. a kind of anti-oxidation high temperature resistant composite fibrofelt according to claim 1, it is characterised in that: high-temperature fibre net with
Both anti-oxidant heat insulation fiber nets are initially formed recombiner unit, then connect into several layers recombiner unit in such a way that needle pierces whole
Body forms final composite fibrofelt.
3. a kind of anti-oxidation high temperature resistant composite fibrofelt according to claim 2, it is characterised in that: the two is initially formed compound
Unit refer to the two is spread it is stacked together.
4. a kind of anti-oxidation high temperature resistant composite fibrofelt according to claim 1, it is characterised in that: the high temperature resistant is fine
Tieing up net includes carbon fiber, with a thickness of 0.1~0.5mm.
5. a kind of anti-oxidation high temperature resistant composite fibrofelt according to claim 1, it is characterised in that: it is described it is anti-oxidant every
Thermal fiber net includes silicon based fiber, with a thickness of 0.1~0.5mm.
6. a kind of anti-oxidation high temperature resistant composite fibrofelt according to claim 4, it is characterised in that: the carbon fiber is poly-
Acrylonitrile base carbon fiber, viscose-based carbon fiber or asphalt base carbon fiber.
7. a kind of anti-oxidation high temperature resistant composite fibrofelt according to claim 6, it is characterised in that: the polypropylene
Itrile group carbon fiber is the carbon fibre that polyacrylonitrile passes through that high-temperature process obtains；
The viscose-based carbon fiber is the carbon fibre that viscose passes through that high-temperature process obtains；
The asphalt base carbon fiber is the carbon fibre that pitch passes through that high-temperature process obtains.
8. a kind of anti-oxidation high temperature resistant composite fibrofelt according to claim 5, it is characterised in that: the silicon based fiber is
Glass fibre, high silica fiber or quartz fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721670327.5U CN208346403U (en) | 2017-12-05 | 2017-12-05 | A kind of anti-oxidation high temperature resistant composite fibrofelt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721670327.5U CN208346403U (en) | 2017-12-05 | 2017-12-05 | A kind of anti-oxidation high temperature resistant composite fibrofelt |
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| CN208346403U true CN208346403U (en) | 2019-01-08 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055678A (en) * | 2019-03-22 | 2019-07-26 | 嘉兴赛曼泰克新材料有限公司 | The low biopersistence composite fibrofelt of high temperature resistant and its preparation process |
| CN111593478A (en) * | 2020-06-03 | 2020-08-28 | 内蒙古隆通碳纤维技术有限公司 | Asphalt-based general-grade carbon fiber needled felt and preparation method and application thereof |
| CN112936657A (en) * | 2021-01-29 | 2021-06-11 | 哈尔滨工业大学 | Method for reinforcing phenolic resin composite material by using fiber braid with antioxidant laminated structure |
| CN115179609A (en) * | 2022-05-25 | 2022-10-14 | 航天材料及工艺研究所 | Light dredging heat-insulation-preventing composite material and preparation method thereof |
| US11753754B2 (en) | 2018-08-21 | 2023-09-12 | Owens Corning Intellectual Capital, Llc | Multiaxial reinforcing fabric with a stitching yarn for improved fabric infusion |
| US11913148B2 (en) | 2018-08-21 | 2024-02-27 | Owens Corning Intellectual Capital, Llc | Hybrid reinforcement fabric |
-
2017
- 2017-12-05 CN CN201721670327.5U patent/CN208346403U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11753754B2 (en) | 2018-08-21 | 2023-09-12 | Owens Corning Intellectual Capital, Llc | Multiaxial reinforcing fabric with a stitching yarn for improved fabric infusion |
| US11913148B2 (en) | 2018-08-21 | 2024-02-27 | Owens Corning Intellectual Capital, Llc | Hybrid reinforcement fabric |
| CN110055678A (en) * | 2019-03-22 | 2019-07-26 | 嘉兴赛曼泰克新材料有限公司 | The low biopersistence composite fibrofelt of high temperature resistant and its preparation process |
| CN111593478A (en) * | 2020-06-03 | 2020-08-28 | 内蒙古隆通碳纤维技术有限公司 | Asphalt-based general-grade carbon fiber needled felt and preparation method and application thereof |
| CN112936657A (en) * | 2021-01-29 | 2021-06-11 | 哈尔滨工业大学 | Method for reinforcing phenolic resin composite material by using fiber braid with antioxidant laminated structure |
| CN115179609A (en) * | 2022-05-25 | 2022-10-14 | 航天材料及工艺研究所 | Light dredging heat-insulation-preventing composite material and preparation method thereof |
| CN115179609B (en) * | 2022-05-25 | 2024-03-15 | 航天材料及工艺研究所 | Light dredging heat-proof and heat-insulating composite material and preparation method thereof |
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