CN113306246A - Flame-retardant light polyimide foam sandwich panel for shelter and manufacturing method thereof - Google Patents
Flame-retardant light polyimide foam sandwich panel for shelter and manufacturing method thereof Download PDFInfo
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- CN113306246A CN113306246A CN202110609495.8A CN202110609495A CN113306246A CN 113306246 A CN113306246 A CN 113306246A CN 202110609495 A CN202110609495 A CN 202110609495A CN 113306246 A CN113306246 A CN 113306246A
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- polyimide foam
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- 239000004642 Polyimide Substances 0.000 title claims abstract description 113
- 229920001721 polyimide Polymers 0.000 title claims abstract description 112
- 239000006260 foam Substances 0.000 title claims abstract description 110
- 239000003063 flame retardant Substances 0.000 title claims abstract description 45
- 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 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 6
- 239000011496 polyurethane foam Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000004455 differential thermal analysis Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 210000000497 foam cell Anatomy 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 125000005462 imide group Chemical group 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
- 238000001757 thermogravimetry curve Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/308—Heat stability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/72—Density
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a flame-retardant light polyimide foam sandwich panel for a shelter and a manufacturing method thereof, wherein the flame-retardant light polyimide foam sandwich panel comprises the following steps: a polyimide foam unit; and the skin is fixed on two sides of the polyimide foam unit. The sandwich board obtained by the invention enables the polyimide foam unit structure to be formed by controlling the polyimide foam units formed at different temperatures and forming pressuresThe sandwich board has good thermal stability, ensures the heat insulation and flame retardant performance, and simultaneously, the density of the polyimide foam unit is 10-29 kg/m3And the requirement of light weight of the whole sandwich panel is met.
Description
Technical Field
The invention relates to a flame-retardant light polyimide foam sandwich panel for a shelter and a manufacturing method thereof, belonging to the technical field of core panels and core panel manufacturing methods.
Background
The sandwich board of the traditional shelter is generally obtained by bonding a polyurethane foam core and inner and outer skins, but the polyurethane foam has poor high temperature resistance and flame retardant property, and life and property safety is easily caused by accidents such as fire, so that the problem is solved by adding a flame retardant in the process of preparing the polyurethane foam (the light heat-insulating sound-insulating wall disclosed by the Chinese patent with the publication number of CN 208518195U), but the polyurethane foam added with the flame retardant can generate highly toxic gas at high temperature, the toxic micromolecule gas can be slowly released in the daily use process, a fluorine-containing foaming agent used in the production process of the polyurethane foam can also have a destructive effect on an ozone layer, the existing material can not meet the use requirement, and a new substitute material needs to be found;
polyimide is a high-performance polymer containing imide rings (-CO-N-CO-) on a main chain, has excellent flame retardance, high temperature resistance, irradiation resistance and open flame resistance, has low density and adjustable performance compared with polyurethane foam materials, does not generate toxic and harmful gases in the using process, and is easy to install and disassemble.
Disclosure of Invention
In order to solve the technical problems, the invention provides a flame-retardant light polyimide foam sandwich board for a shelter and a manufacturing method thereof.
The invention is realized by the following technical scheme.
The invention provides a flame-retardant light polyimide foam sandwich panel for a shelter, which comprises: a polyimide foam unit;
and the skin is fixed on two sides of the polyimide foam unit.
The polyimide foam unit is a plurality of polyimide foam cores which are distributed in an up-down layered mode and are staggered end to end, the polyimide foam cores form the flame-retardant light weight, and skins are fixed to two sides of the whole polyimide foam cores in an adhesive mode.
The skin is made of metal materials.
And the skin is fixedly adhered to two sides of the polyimide foam unit.
A manufacturing method of a flame-retardant light polyimide foam sandwich panel for a shelter comprises the following steps:
the method comprises the following steps: curing a polyimide foam primary plate with a thermal conductivity coefficient of less than 0.035W/(m.K) and a limiting oxygen index of not less than 39% at a temperature of 196-260 ℃ and a pressure of 150-230 Mpa to obtain a polyimide foam primary plate with a thickness of 25-45 mm and a density of 10-29 kg/m3The polyimide foam unit of (a);
the method also comprises a second step after the first step, wherein the second step is as follows: a plurality of polyimide foam units are distributed in a vertically layered mode and staggered end to form a flame-retardant light polyimide foam core;
a third step is also included after the second step, and the third step is as follows: and coating an adhesive on two sides of the flame-retardant light polyimide foam core to fixedly bond the skins to obtain the composite sandwich board.
In the first step, the polyimide foam primary plate is cured at 260 ℃ and 230MPa to obtain a plate with a thickness of 45mm and a density of 10kg/m3The polyimide foam unit of (1).
In the first step, the polyimide foam primary plate is cured at a temperature of 210 ℃ and a pressure of 185MPa to obtain a plate with a thickness of 35mm and a density of 20kg/m3The polyimide foam unit of (1).
In the first step, the polyimide foam primary plate is at temperatureCuring at 196 deg.C and 200Mpa to obtain a product with a thickness of 30mm and a density of 25kg/m3The polyimide foam unit of (1).
In the first step, the polyimide foam primary plate is cured at 250 ℃ and 150MPa to obtain a plate with a thickness of 25mm and a density of 29kg/m3Polyimide foam unit of
The invention has the beneficial effects that: according to the sandwich board obtained by the invention, the polyimide foam units formed by controlling different temperatures and forming pressures are adopted, so that the sandwich board formed by the polyimide foam units has good thermal stability, the heat insulation and flame retardant properties are ensured, and meanwhile, the density of the polyimide foam units is 10-29 kg/m3And the requirement of light weight of the whole sandwich panel is met.
Drawings
FIG. 1 is a schematic view of a plurality of polyimide foam units of the present invention constituting a polyimide foam core;
FIG. 2 is a schematic top view of a polyimide foam cell and skin connection of the present invention;
FIG. 3 is a thermogravimetric analysis plot of a polyimide foam sandwich panel;
FIG. 4 is a graph of a differential thermal analysis of a polyimide foam sandwich panel;
in the figure: 1-a polyimide foam unit; 2-a polyimide foam core; 3-covering.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1-4.
The invention relates to a flame-retardant light polyimide foam sandwich panel for a shelter, which comprises: a polyimide foam unit 1;
The polyimide foam units 1 are formed by vertically layering a plurality of polyimide foam cores 2 which are staggered end to form flame-retardant light, and skins 3 are fixed on two sides (front and back sides in fig. 2) of the whole body in an adhesive mode.
The skin 3 is made of metal material, such as steel plate, aluminum alloy and the like.
The manufacturing method of the flame-retardant lightweight polyimide foam sandwich board for the shelter is shown in the following 4 examples, and the used polyimide foam is a low-heat-conductivity polyimide foam material with the patent publication number of CN111592649A of the company and the preparation method thereof.
Example 1
A manufacturing method of a flame-retardant light polyimide foam sandwich panel for a shelter comprises the following steps:
the method comprises the following steps: curing a polyimide foam primary plate with a thermal conductivity coefficient of less than 0.035W/(m.K) and a limiting oxygen index of not less than 39% at 260 ℃ and 230Mpa to obtain a polyimide foam primary plate with a thickness of 45mm and a density of 10kg/m3The polyimide foam unit 1 of (a);
step two: a plurality of polyimide foam units 1 are distributed in an up-down layered manner and staggered end to form a flame-retardant light polyimide foam core 2;
step three: and (3) coating an adhesive on two sides (front and back sides in figure 2) of the flame-retardant light polyimide foam core to fixedly bond the skins to obtain the composite sandwich board.
Example 2
A manufacturing method of a flame-retardant light polyimide foam sandwich panel for a shelter comprises the following steps:
the method comprises the following steps: curing a polyimide foam primary plate with a thermal conductivity of less than 0.035W/(m.K) and a limiting oxygen index of not less than 39% at 210 ℃ and 185MPa to obtain a polyimide foam primary plate with a thickness of 35mm and a density of 20kg/m3The polyimide foam unit 1 of (a);
step two: a plurality of polyimide foam units 1 are distributed in an up-down layered manner and staggered end to form a flame-retardant light polyimide foam core 2;
step three: and (3) coating an adhesive on two sides (front and back sides in figure 2) of the flame-retardant light polyimide foam core to fixedly bond the skins to obtain the composite sandwich board.
Example 3
A manufacturing method of a flame-retardant light polyimide foam sandwich panel for a shelter comprises the following steps:
the method comprises the following steps: curing a polyimide foam primary plate with a thermal conductivity coefficient of less than 0.035W/(m.K) and a limiting oxygen index of not less than 39% at 196 deg.C and 200Mpa to obtain a polyimide foam primary plate with a thickness of 30mm and a density of 25kg/m3The polyimide foam unit 1 of (a);
step two: a plurality of polyimide foam units 1 are distributed in an up-down layered manner and staggered end to form a flame-retardant light polyimide foam core 2;
step three: and (3) coating an adhesive on two sides (front and back sides in figure 2) of the flame-retardant light polyimide foam core to fixedly bond the skins to obtain the composite sandwich board.
Example 4
A manufacturing method of a flame-retardant light polyimide foam sandwich panel for a shelter comprises the following steps:
the method comprises the following steps: curing a polyimide foam primary plate with a thermal conductivity coefficient of less than 0.035W/(m.K) and a limiting oxygen index of not less than 39% at 250 ℃ and 150Mpa to obtain a polyimide foam primary plate with a thickness of 25mm and a density of 29kg/m3The polyimide foam unit 1 of (a);
step two: a plurality of polyimide foam units 1 are distributed in an up-down layered manner and staggered end to form a flame-retardant light polyimide foam core 2;
step three: and (3) coating an adhesive on two sides (front and back sides in figure 2) of the flame-retardant light polyimide foam core to fixedly bond the skins to obtain the composite sandwich board.
The 4 embodiment parameters described above are shown in the following figures.
According to the sandwich panel obtained in the above 4 examples, the polyimide foam units 1 were constituted by controlling the temperature and the molding pressure of the polyimide foam units 1 formed at different temperaturesThe sandwich board has good thermal stability (such as a thermogravimetric analysis curve shown in figure 3 and a differential thermal analysis curve shown in figure 4), ensures the thermal insulation and flame retardant performance, and simultaneously, the density of the polyimide foam unit 1 is 10-29 kg/m3And the requirement of light weight of the whole sandwich panel is met.
Claims (10)
1. The flame-retardant light polyimide foam sandwich panel for the shelter is characterized by comprising the following components in percentage by weight: a polyimide foam unit (1);
and the skin (3) is fixed on two sides of the polyimide foam unit (1).
2. The flame retardant lightweight polyimide foam sandwich panel for shelter as claimed in claim 1 wherein: polyimide foam unit (1) are from top to bottom layering distribution end to end crisscross a plurality of polyimide foam core (2) that constitute fire-retardant light, and a plurality of both sides that constitute wholly are fixed with covering (3).
3. The flame retardant lightweight polyimide foam sandwich panel for shelter as claimed in claim 1 wherein: the skin (3) is made of a metal material; and the skin (3) is fixedly adhered to two sides of the polyimide foam unit (1).
4. A method for manufacturing a flame retardant lightweight polyimide foam sandwich panel for a shelter as claimed in claim 1, comprising the steps of:
the method comprises the following steps: curing a polyimide foam primary plate with a thermal conductivity coefficient of less than 0.035W/(m.K) and a limiting oxygen index of not less than 39% at a temperature of 196-260 ℃ and a pressure of 150-230 Mpa to obtain a polyimide foam primary plate with a thickness of 25-45 mm and a density of 10-29 kg/m3The polyimide foam unit (1).
5. The method for manufacturing the flame-retardant lightweight polyimide foam sandwich panel for the shelter as claimed in claim 4, further comprising a second step after the first step, wherein the second step is: a plurality of polyimide foam units (1) are distributed in a vertically layered mode and staggered end to form a flame-retardant light polyimide foam core (2).
6. The method for manufacturing the flame-retardant lightweight polyimide foam sandwich panel for the shelter as claimed in claim 5, further comprising a third step after the second step, wherein the third step is: and coating an adhesive on two sides of the flame-retardant light polyimide foam core to fixedly bond the skin (3) to obtain the composite sandwich board.
7. The method for manufacturing a flame retardant lightweight polyimide foam sandwich panel for shelter as claimed in claim 1 or 6, wherein in said step one, said polyimide foam preform panel is cured at a temperature of 260 ℃ and a pressure of 230Mpa to obtain a thickness of 45mm and a density of 10kg/m3The polyimide foam unit (1).
8. The flame retardant lightweight polyimide foam sandwich panel for shelter as claimed in claim 1 or 6 and the manufacturing method thereof, wherein in the first step, the polyimide foam as-formed panel is cured at a temperature of 210 ℃ and a pressure of 185Mpa to obtain a thickness of 35mm and a density of 20kg/m3The polyimide foam unit (1).
9. The flame retardant lightweight polyimide foam sandwich panel for shelter as claimed in claim 1 or 6 and the manufacturing method thereof, wherein in the first step, the polyimide foam as-formed panel is cured at 196 ℃ and 200Mpa to obtain a thickness of 30mm and a density of 25kg/m3The polyimide foam unit (1).
10. The flame retardant lightweight polyimide foam sandwich panel for shelter as claimed in claim 1 or 6 and the manufacturing method thereof, wherein in the first step, the polyimide foam as-formed panel is cured at 250 ℃ and 150Mpa to obtain a thickness of 25mm and a density of 29kg/m3The polyimide foam unit (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110609495.8A CN113306246A (en) | 2021-06-01 | 2021-06-01 | Flame-retardant light polyimide foam sandwich panel for shelter and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110609495.8A CN113306246A (en) | 2021-06-01 | 2021-06-01 | Flame-retardant light polyimide foam sandwich panel for shelter and manufacturing method thereof |
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| CN112126106A (en) * | 2020-09-28 | 2020-12-25 | 贵州航天天马机电科技有限公司 | High-density hard flame-retardant polyimide foam material and preparation method thereof |
| CN112679735A (en) * | 2020-12-29 | 2021-04-20 | 江苏中科聚合新材料产业技术研究院有限公司 | Rigid polyimide foam material, and preparation method and application thereof |
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Application publication date: 20210827 |