CN219969089U - Heat-insulating corrosion-resistant composite film - Google Patents
Heat-insulating corrosion-resistant composite film Download PDFInfo
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- CN219969089U CN219969089U CN202321042610.9U CN202321042610U CN219969089U CN 219969089 U CN219969089 U CN 219969089U CN 202321042610 U CN202321042610 U CN 202321042610U CN 219969089 U CN219969089 U CN 219969089U
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- material layer
- foaming material
- composite film
- heat
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- 239000002131 composite material Substances 0.000 title claims abstract description 38
- 238000005260 corrosion Methods 0.000 title claims abstract description 22
- 230000007797 corrosion Effects 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 64
- 238000005187 foaming Methods 0.000 claims abstract description 45
- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 239000004964 aerogel Substances 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 239000002033 PVDF binder Substances 0.000 claims abstract description 12
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 9
- 239000012528 membrane Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 101
- 239000000835 fiber Substances 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 239000006260 foam Substances 0.000 claims description 12
- 239000003365 glass fiber Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 8
- 239000004642 Polyimide Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000004760 aramid Substances 0.000 claims description 7
- 229920003235 aromatic polyamide Polymers 0.000 claims description 7
- 229920001721 polyimide Polymers 0.000 claims description 7
- 239000002759 woven fabric Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000004965 Silica aerogel Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000013329 compounding Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The utility model discloses a heat-insulating corrosion-resistant composite film, which comprises a substrate layer; a first foaming material layer, a second foaming material layer and a PTFE coating are sequentially arranged on one side of the base material layer; a third foaming material layer is arranged on the other side of the substrate layer; a PVDF coating is arranged on one side of the third foaming material layer far away from the substrate layer; the first foaming material layer, the second foaming material layer and the third foaming material layer are uniformly distributed with a plurality of vesicles and aerogel micropores. According to the heat-insulating corrosion-resistant composite film, the heat-insulating effect of the composite film can be effectively improved by adopting two foaming material layers containing aerogel micropores. The outermost layer is provided with a PVDF coating and a PTFE coating, so that the composite membrane has good corrosion resistance on both sides.
Description
Technical Field
The utility model relates to a heat-insulating corrosion-resistant composite film, and belongs to the technical field of heat-insulating films.
Background
The high-strength composite film is a multilayer composite film material prepared from base layer fibers, resin coating layers and other functional layers through special composite processes, has the functions of durability, water resistance, corrosion resistance, ultraviolet resistance, heat insulation and the like, and is widely applied to various fields of aerospace, ocean engineering, military industry national defense, buildings and the like. Among the functions, heat insulation is a very important function for composite membrane materials, and at present, there are many methods for imparting heat insulation properties to composite membranes, wherein microporous foam materials have become the preferred materials for heat insulation due to extremely low gas phase and solid phase heat conduction caused by the porous structure inside. The foaming material has the advantages that the good heat insulation performance is utilized, and the heat insulation and noise reduction functions of the composite film are improved by combining the foaming material with the composite film, so that the foaming material becomes an important development direction of the functionalization of the composite film material.
In the use process of the composite film, the composite film is required to have good corrosion resistance, so that the internal foaming material is protected to avoid the influence of the corrosion material on the heat insulation performance.
Disclosure of Invention
The utility model aims to provide a heat-insulating corrosion-resistant composite film, wherein a PVDF coating and a PTFE coating are arranged on the outermost layer, so that the composite film has good corrosion-resistant effect on both sides, and a foaming material layer arranged inside provides good heat-insulating effect for the composite film.
In order to solve the technical problems, the aim of the utility model is realized as follows:
the utility model relates to a heat-insulating corrosion-resistant composite film, which comprises a substrate layer;
a first foaming material layer, a second foaming material layer and a PTFE coating are sequentially arranged on one side of the base material layer; a third foaming material layer is arranged on the other side of the substrate layer; a PVDF coating is arranged on one side of the third foaming material layer far away from the substrate layer;
the first foaming material layer, the second foaming material layer and the third foaming material layer are uniformly distributed with a plurality of vesicles and aerogel micropores.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: a reinforcing layer is arranged between the first foaming material layer and the second foaming material layer.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the reinforcing layer is a fabric formed by interweaving aramid 1414 filaments serving as warp and weft yarns; and the distance between the aramid 1414 filaments in the warp direction and the weft direction is 10-15 times of the yarn diameter.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the aerogel of the aerogel micropores is silicon dioxide aerogel.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the substrate layer is a fiber reinforced resin sheet.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the fiber reinforced resin sheet comprises a fiber layer which is subjected to stitch bonding and compounding and a resin material which is wrapped on the outer side of the fiber layer; the fiber layer comprises two layers of glass fiber woven fabric layers and a polyimide aerogel fiber layer; the polyimide aerogel fiber layer is positioned between two layers of glass fiber woven fabric layers.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: an adhesive layer is arranged between the third foaming material layer and the PVDF coating.
The beneficial effects of the utility model are as follows: according to the heat-insulating corrosion-resistant composite film, the heat-insulating effect of the composite film can be effectively improved by adopting two foaming material layers containing aerogel micropores. The outermost layer is provided with a PVDF coating and a PTFE coating, so that the composite membrane has good corrosion resistance on both sides.
Drawings
FIG. 1 is a schematic view of a heat-insulating abrasion-resistant composite film according to an embodiment;
FIG. 2 is a schematic structural view of a heat-insulating abrasion-resistant composite film according to a second embodiment;
fig. 3 is a schematic structural view of a fiber layer in a base material layer according to the second embodiment.
The labels in the figures are illustrated below: 1-a substrate layer; 2-a first layer of foam material; 3-a second layer of foaming material; a 4-PTFE coating; 5-a third layer of foaming material; a 6-PVDF coating; 11-glass fiber woven fabric layer; a 12-polyimide aerogel fiber layer; 7-reinforcing layer.
Detailed Description
The utility model will be further described with reference to the drawings and specific examples.
Example 1
This embodiment will be described in detail with reference to fig. 1. The heat-insulating corrosion-resistant composite film according to the embodiment comprises a substrate layer 1; a first foaming material layer 2, a second foaming material layer 3 and a PTFE coating 4 are sequentially arranged on one side of the base material layer 1; a third foaming material layer 5 is arranged on the other side of the substrate layer 1; a PVDF coating 6 is arranged on one side of the third foaming material layer 5 far away from the substrate layer 1; the first foaming material layer 2, the second foaming material layer 3 and the third foaming material layer 5 are uniformly distributed with a plurality of vesicles and aerogel micropores.
The PVC foam used for the first foam layer 2 and the second foam layer 3. The vesicle is formed by dispersing a vesicle type high-temperature foaming agent or a common foaming agent commonly used in the field in slurry, drying a coating film, and then foaming in a foaming temperature range. The vesicles have a size of 50-00. Mu.m, for example 50 μm, 55 μm, 60 μm, 65 μm, 70 μm, 75 μm, 80 μm, 85 μm, 90 μm, 95 μm or 100 μm etc. The aerogel is a nanoscale porous solid material formed by replacing liquid phase in gel with gas in a certain drying mode through a sol-gel method, and most commonly is silica aerogel which is a nanoscale porous solid material formed by taking silica as a framework.
Further, the thickness of the first foam layer 2 is 300-500 μm, for example, the thickness of the first foam layer 2 is 300 μm, 350 μm, 400 μm, 450 μm or 500 μm, etc. The thickness of the second foamed material layer 3 is 50 to 200 μm, for example, the thickness of the second foamed material layer is 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 150 μm, 200 μm, or the like. The third layer of foam 5 is 200-300 μm, for example the first layer of foam 2 has a thickness of 200 μm, 250 μm or 300 μm.
Both the PTFE coating 4 and the PVDF coating 6 can provide good abrasion resistance for the heat-insulating abrasion-resistant composite film, thereby protecting the inner foaming material layer and avoiding loss of heat-insulating effect.
Further, the aerogel of the aerogel micropores is silica aerogel.
Further, the base material layer 1 is a fiber reinforced resin sheet, which is formed by impregnating a resin material with a sheet material composed of fibers, and in this embodiment, the glass fibers are used, and the resin used is an unsaturated polyester, a vinyl resin, a polyurethane resin, or an epoxy resin, and the epoxy resin is selected.
Further, a polyvinyl acetate adhesive layer is provided between the first foam layer 2 and the base material layer 1.
Example two
The present embodiment will be described in detail with reference to fig. 2 and 3. One of the differences between the heat-insulating wear-resistant composite film according to the present embodiment and the first embodiment is that: a reinforcing layer 7 is arranged between the first foam layer 2 and the second foam layer 3.
Further, the reinforcing layer 7 is a fabric formed by interweaving aramid 1414 filaments serving as warp and weft yarns; and the distance between the aramid 1414 filaments in the warp direction and the weft direction is 10-15 times of the yarn diameter. The aramid 1414 fiber has good strength and cutting resistance, and can improve the cutting resistance of the heat-insulating microporous foaming composite film.
Another difference from the first embodiment is that: the fiber reinforced resin sheet comprises a fiber layer which is subjected to stitch bonding and compounding and a resin material which is wrapped on the outer side of the fiber layer; the fiber layers comprise two layers of glass fiber woven fabric layers 11 and polyimide aerogel fiber layers 12; the polyimide aerogel fiber layer 12 is positioned between two glass fiber woven fabric layers 11.
Further, an adhesive layer is disposed between the third foaming material layer 5 and the PVDF coating 6.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (7)
1. A heat-insulating corrosion-resistant composite film, which is characterized by comprising a substrate layer (1);
a first foaming material layer (2), a second foaming material layer (3) and a PTFE coating (4) are sequentially arranged on one side of the base material layer (1); a third foaming material layer (5) is arranged on the other side of the base material layer (1); a PVDF coating (6) is arranged on one side of the third foaming material layer (5) far away from the substrate layer (1);
the first foaming material layer (2), the second foaming material layer (3) and the third foaming material layer (5) are uniformly distributed with a plurality of vesicles and aerogel micropores.
2. A heat-insulating corrosion-resistant composite film according to claim 1, characterized in that a reinforcing layer (7) is arranged between the first foam layer (2) and the second foam layer (3).
3. The heat-insulating corrosion-resistant composite film according to claim 2, characterized in that the reinforcing layer (7) is a fabric interwoven by aramid 1414 filaments as warp and weft yarns; and the distance between the aramid 1414 filaments in the warp direction and the weft direction is 10-15 times of the yarn diameter.
4. The thermally insulating corrosion resistant composite membrane of claim 1, wherein said aerogel of aerogel micropores is silica aerogel.
5. A heat-insulating corrosion-resistant composite film according to claim 1, wherein the base material layer (1) is a fiber-reinforced resin sheet.
6. The heat-insulating and corrosion-resistant composite film according to claim 5, wherein said fiber-reinforced resin sheet comprises a stitch-bonded composite fiber layer and a resin material wrapped outside the fiber layer; the fiber layers comprise two layers of glass fiber woven fabric layers (11) and polyimide aerogel fiber layers (12); the polyimide aerogel fiber layer (12) is positioned between two glass fiber woven fabric layers (11).
7. A thermal insulation corrosion resistant composite film according to claim 1, characterized in that an adhesive layer is provided between the third foamed material layer (5) and the PVDF coating (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321042610.9U CN219969089U (en) | 2023-04-28 | 2023-04-28 | Heat-insulating corrosion-resistant composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321042610.9U CN219969089U (en) | 2023-04-28 | 2023-04-28 | Heat-insulating corrosion-resistant composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219969089U true CN219969089U (en) | 2023-11-07 |
Family
ID=88587370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321042610.9U Active CN219969089U (en) | 2023-04-28 | 2023-04-28 | Heat-insulating corrosion-resistant composite film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219969089U (en) |
-
2023
- 2023-04-28 CN CN202321042610.9U patent/CN219969089U/en active Active
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