CN111055562A - A kind of flame retardant heat insulation and sound insulation material for aircraft - Google Patents
A kind of flame retardant heat insulation and sound insulation material for aircraft Download PDFInfo
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- CN111055562A CN111055562A CN202010010583.1A CN202010010583A CN111055562A CN 111055562 A CN111055562 A CN 111055562A CN 202010010583 A CN202010010583 A CN 202010010583A CN 111055562 A CN111055562 A CN 111055562A
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 60
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000009413 insulation Methods 0.000 title abstract description 17
- 239000012774 insulation material Substances 0.000 title description 4
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 19
- 239000011810 insulating material Substances 0.000 claims abstract description 18
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- 239000003365 glass fiber Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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Abstract
本发明公开了一种飞行器用阻燃绝热隔音材料，由外向内依次包括镜面铝箔层、第一聚氟乙烯薄膜层、第一尼龙网格层、玻璃棉毡层、阻燃气泡层、聚酯薄膜层、第二尼龙网格层和第二聚氟乙烯薄膜层；阻燃气泡层包括若干矩阵排列的闭孔结构气泡，气泡内设有阻燃剂；第一聚氟乙烯薄膜层与第二聚氟乙烯薄膜层之间进行封装。本发明采用纳米涂层的镜面铝箔，具有极高的反射率，能有效降低热辐射。利用铝箔反射层与阻燃气泡层，实现隔热、保温、防腐等多重功效，并选用航空级玻璃棉毡，使产品具有优异的隔热、吸音降噪性能。本发明的飞行器用阻燃绝热隔音材料具有阻燃、质轻、薄层、隔热、吸音降噪、高效节能、防水外护等特点。
The invention discloses a flame-retardant, heat-insulating and sound-insulating material for aircraft, which sequentially comprises a mirror-surface aluminum foil layer, a first polyvinyl fluoride film layer, a first nylon mesh layer, a glass wool felt layer, a flame-retardant bubble layer, and a polyester layer from the outside to the inside. The film layer, the second nylon mesh layer and the second polyvinyl fluoride film layer; the flame retardant bubble layer includes a number of closed-cell structure bubbles arranged in a matrix, and the bubbles are provided with a flame retardant; the first polyvinyl fluoride film layer and the second Encapsulation between polyvinyl fluoride film layers. The invention adopts the mirror surface aluminum foil with nano-coating, which has extremely high reflectivity and can effectively reduce the heat radiation. The aluminum foil reflective layer and the flame-retardant bubble layer are used to achieve multiple functions such as heat insulation, heat preservation, and anti-corrosion. Aviation-grade glass wool felt is used to make the product have excellent heat insulation, sound absorption and noise reduction performance. The flame-retardant, heat-insulating and sound-insulating material for aircraft has the characteristics of flame retardancy, light weight, thin layer, heat insulation, sound absorption and noise reduction, high efficiency and energy saving, waterproof outer protection and the like.
Description
Technical Field
The invention relates to a flame-retardant, heat-insulating and sound-insulating material for an aircraft, belonging to the technical field of new materials.
Background
Commercial airliners typically cruise at an altitude of ten thousand meters above ground and the extravehicular temperature can be as low as-65 ℃. In order to create a suitable temperature environment for the cabin, a reasonable insulation structure needs to be designed for the aircraft. The heat insulation structure of the airplane mainly comprises a metal skin, a heat insulation layer and a decorative lining. The heat insulation material used on the existing airplane is glass fiber cotton felt, the porous texture structure of the material is easy to absorb moisture, and particularly when the airplane is parked at an airport with high humidity, the moisture absorption phenomenon is more serious. When the airplane cruises, the insulating layer bears great temperature difference inside and outside the cabin, moisture absorbed in the insulating layer is condensed or even frozen after the airplane takes off, and the ice formed when the airplane lands is melted, so that great harm is repeatedly brought to the airplane. The existing foreign packaging film has superior quality, and the dependence of import of aviation packaging film materials in China is large. Therefore, the development of the light composite film packaging glass wool felt for aviation interior decoration, which has excellent water vapor barrier property, packaging performance and sound and heat insulation performance, has great significance.
At present, glass wool and packaging film materials in the market have different performances, and the glass wool and packaging film materials in high-end fields such as aerospace have high import dependence, so that the development of the flame-retardant heat-insulation sound-insulation material has great significance.
Disclosure of Invention
In order to solve the technical problems, the invention provides the flame-retardant, heat-insulating and sound-insulating material for the aircraft. The aluminum foil reflecting layer and the flame-retardant bubble layer are utilized to realize multiple effects of heat insulation, heat preservation, corrosion prevention and the like, and the aviation-grade glass wool felt is selected, so that the product has excellent heat insulation, sound absorption and noise reduction performances.
The invention provides a flame-retardant heat-insulation sound-insulation material for an aircraft, which sequentially comprises a mirror aluminum foil layer, a first polyvinyl fluoride film layer, a first nylon mesh layer, a glass cotton felt layer, a flame-retardant bubble layer, a polyester film layer, a second nylon mesh layer and a second polyvinyl fluoride film layer from outside to inside; the flame-retardant bubble layer comprises a plurality of closed-cell structure bubbles arranged in a matrix, and a flame retardant is arranged in the bubbles; and the first polyvinyl fluoride film layer and the second polyvinyl fluoride film layer are packaged.
Further, the flame-retardant bubble layer is prepared from polyethylene.
Further, the thickness of the flame-retardant bubble layer is 20-30 mm, and the diameter of the bubble is 3-30 mm. The air bubbles of the air bubble layer are all closed-cell structures, are uniform in size and are arranged in a matrix, the characteristics of extremely low air thermal conductivity and small thermal convection of the closed-cell structures are fully utilized, the thermal conductivity of the material can be effectively reduced, the heat insulation performance is excellent, and the sound absorption and noise reduction effects are achieved.
Furthermore, the first polyvinyl fluoride film layer and the first nylon grid layer, the first nylon grid layer and the glass cotton felt layer, the glass cotton felt layer and the flame-retardant bubble layer, the flame-retardant bubble layer and the polyester film layer, the polyester film layer and the second nylon grid layer, and the second nylon grid layer and the second polyvinyl fluoride film layer are bonded through the adhesive layer.
Furthermore, the adhesive layer is doped with a flame retardant. And a flame retardant is added into the adhesive layer and the bubbles, so that the flame retardant function can be enhanced. The flame retardant adopted by the invention is antimony pentoxide flame retardant.
Further, the mirror surface aluminum foil layer coats metal aluminum on the surface of the first polyvinyl fluoride film layer through metal evaporation spraying.
Further, the thickness of the mirror surface aluminum foil layer is 200-1000 nm. The high-purity mirror aluminum foil with the nano coating has extremely high reflectivity, can effectively reduce heat radiation, and has higher oxidation resistance and corrosion resistance.
Further, the first polyvinyl fluoride film layer and the second polyvinyl fluoride film layer are sealed through ultrasonic-assisted heat sealing. Through the encapsulation of polyvinyl fluoride film layer, can encapsulate glass cotton felt layer, fire-retardant bubble layer, polyester film layer in the inboard, the steam barrier property is good.
Further, the thickness of the glass cotton felt layer is 10-20 mu m; the thickness of the polyester film layer is 20-40 mu m; the thickness of the first polyvinyl fluoride film layer and the second polyvinyl fluoride film layer is 10-30 mu m.
Furthermore, the first nylon mesh layer and the second nylon mesh layer are formed by weaving nylon tows, and the mesh distance is 2-5 mm. By arranging the nylon mesh layer, the mechanical property of the material can be enhanced.
The invention has the beneficial effects that:
the mirror aluminum foil with the nano coating has extremely high reflectivity and can effectively reduce heat radiation. The aluminum foil reflecting layer and the flame-retardant bubble layer are utilized to realize multiple effects of heat insulation, heat preservation, corrosion prevention and the like, and the aviation-grade glass wool felt is selected, so that the product has excellent heat insulation, sound absorption and noise reduction performances. The flame-retardant, heat-insulating and sound-insulating material for the aircraft has the characteristics of flame retardance, light weight, thin layer, heat insulation, sound absorption and noise reduction, high efficiency, energy conservation, water prevention, external protection and the like.
Drawings
Fig. 1 is a schematic structural view of the flame retardant, heat insulating and sound insulating material for aircraft according to the present invention.
The reference numbers in the figures illustrate: 1. mirror surface aluminium foil layer, 2, first polyvinyl fluoride film layer, 3, first nylon net layer, 4, glass cotton felt layer, 5, fire-retardant bubble layer, 501, bubble, 6, polyester film layer, 7, second nylon net layer, 8, second polyvinyl fluoride film layer.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
As shown in fig. 1, the flame-retardant, heat-insulating and sound-insulating material for an aircraft of the present invention comprises, from outside to inside, a mirror aluminum foil layer 1, a first polyvinyl fluoride film layer 2, a first nylon mesh layer 3, a glass wool felt layer 4, a flame-retardant bubble layer 5, a polyester film layer 6, a second nylon mesh layer 7 and a second polyvinyl fluoride film layer 8 in this order; the flame-retardant bubble layer 5 comprises a plurality of closed-cell structure bubbles 501 arranged in a matrix, and a flame retardant is arranged in the bubbles 501; the first polyvinyl fluoride film layer 2 and the second polyvinyl fluoride film layer 8 are sealed.
The flame-retardant bubble layer is prepared from polyethylene. The thickness of the flame-retardant bubble layer is 20-30 mm, and the diameter of the bubble is 3-30 mm. The air bubbles of the air bubble layer are all closed-cell structures, are uniform in size and are arranged in a matrix, the characteristics of extremely low air thermal conductivity and small thermal convection of the closed-cell structures are fully utilized, the thermal conductivity of the material can be effectively reduced, the heat insulation performance is excellent, and the sound absorption and noise reduction effects are achieved.
According to the invention, a first polyvinyl fluoride film layer 2 and a first nylon grid layer 3, a first nylon grid layer 3 and a glass cotton felt layer 4, a glass cotton felt layer 4 and a flame-retardant bubble layer 5, a flame-retardant bubble layer 5 and a polyester film layer 6, a polyester film layer 6 and a second nylon grid layer 7, and a second nylon grid layer 7 and a second polyvinyl fluoride film layer 8 are bonded through adhesive layers.
The adhesive layer of the present invention is doped with a flame retardant. According to the invention, the flame retardant is added into the adhesive layer and the bubbles, so that the flame retardant function can be enhanced. The flame retardant adopted by the invention is antimony pentoxide flame retardant.
The mirror surface aluminum foil layer of the invention is coated with metallic aluminum on the surface of the first polyvinyl fluoride film layer by metal evaporation spraying. The thickness of the mirror surface aluminum foil layer is 200-1000 nm. The high-purity mirror aluminum foil with the nano coating has extremely high reflectivity, can effectively reduce heat radiation, and has higher oxidation resistance and corrosion resistance.
The first polyvinyl fluoride film layer and the second polyvinyl fluoride film layer are packaged through ultrasonic-assisted heat sealing. Through the encapsulation of polyvinyl fluoride film layer, can encapsulate glass cotton felt layer, fire-retardant bubble layer, polyester film layer in the inboard, the steam barrier property is good.
The thickness of the glass cotton felt layer is 10-20 mu m; the thickness of the polyester film layer is 20-40 mu m; the thickness of the first polyvinyl fluoride film layer and the second polyvinyl fluoride film layer is 10-30 mu m.
The first nylon mesh layer and the second nylon mesh layer are formed by weaving nylon tows, and the mesh distance is 2-5 mm. By arranging the nylon mesh layer, the mechanical property of the material can be enhanced.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010010583.1A CN111055562A (en) | 2020-01-06 | 2020-01-06 | A kind of flame retardant heat insulation and sound insulation material for aircraft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010010583.1A CN111055562A (en) | 2020-01-06 | 2020-01-06 | A kind of flame retardant heat insulation and sound insulation material for aircraft |
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| CN111055562A true CN111055562A (en) | 2020-04-24 |
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| CN202010010583.1A Pending CN111055562A (en) | 2020-01-06 | 2020-01-06 | A kind of flame retardant heat insulation and sound insulation material for aircraft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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