CN115874488B - Temperature-resistant heat-insulating paper and preparation method thereof - Google Patents
Temperature-resistant heat-insulating paper and preparation method thereof Download PDFInfo
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- CN115874488B CN115874488B CN202211406132.5A CN202211406132A CN115874488B CN 115874488 B CN115874488 B CN 115874488B CN 202211406132 A CN202211406132 A CN 202211406132A CN 115874488 B CN115874488 B CN 115874488B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000004964 aerogel Substances 0.000 claims abstract description 43
- 239000000835 fiber Substances 0.000 claims abstract description 40
- 239000004005 microsphere Substances 0.000 claims abstract description 33
- 239000012784 inorganic fiber Substances 0.000 claims abstract description 29
- 239000003365 glass fiber Substances 0.000 claims abstract description 23
- 239000011230 binding agent Substances 0.000 claims abstract description 22
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 21
- 239000011268 mixed slurry Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000002002 slurry Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000018044 dehydration Effects 0.000 claims abstract description 5
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000002174 Styrene-butadiene Substances 0.000 claims description 8
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 8
- 229920000126 latex Polymers 0.000 claims description 8
- 239000004816 latex Substances 0.000 claims description 8
- 229920002401 polyacrylamide Polymers 0.000 claims description 8
- 239000011115 styrene butadiene Substances 0.000 claims description 8
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 8
- 239000004965 Silica aerogel Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 230000000052 comparative effect Effects 0.000 description 10
- 238000003756 stirring Methods 0.000 description 9
- 239000002131 composite material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000000352 supercritical drying Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012767 functional filler Substances 0.000 description 1
- 238000007603 infrared drying Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention relates to a temperature-resistant heat-insulating paper and a preparation method thereof, comprising the following steps: (1) The preparation materials comprise inorganic fibers, aerogel microspheres and binders; the dosage of the aerogel microspheres is 3-10% of the weight of the inorganic fibers; the inorganic fiber is prepared from polyacrylonitrile pre-oxidized fiber and glass fiber according to the mass ratio of 2-3:1; (2) Uniformly dispersing the inorganic fibers in water to prepare fiber slurry, then adding the binder, uniformly mixing, and then adding the aerogel microspheres, and uniformly mixing to obtain mixed slurry; (3) And (3) carrying out wet paper making by adopting the mixed slurry, and obtaining the temperature-resistant heat-insulating paper after suction dehydration and drying after molding. The heat insulation paper has good heat resistance and heat insulation performance under the condition of less aerogel consumption, and has low production cost.
Description
Technical Field
The invention relates to the technical field of special paper, in particular to temperature-resistant heat-insulating paper and a preparation method thereof.
Background
Along with the rapid development of economy, the requirements on low carbon and energy conservation are higher and higher, and the heat-resistant heat-insulating material is a novel functional material. The heat-resistant heat-insulating material can effectively prevent heat transfer, reduces heat loss and achieves the effects of energy conservation and emission reduction.
Based on the fact that the conduction rate of heat in air is far smaller than that of heat in solid materials, functional fillers with high pore rate and low heat conductivity coefficient are added into the heat-resistant heat-insulating paper, heat is forced to be conducted through air in air holes, and therefore the heat conductivity coefficient of the heat-resistant heat-insulating paper is greatly reduced, and the purposes of heat preservation and heat insulation are achieved.
The glass fiber is an inorganic nonmetallic material with excellent performance, various types, good heat resistance and high mechanical strength, and can be used as a reinforcing material and a heat insulation material in a composite material. The glass fiber is a flexible material, so that the application of the glass fiber in the field of temperature resistance and heat insulation is greatly increased.
Conventionally, soaking silica gel in glass fiber cloth, and performing supercritical drying to obtain the aerogel composite material. The production process is complex, and the composite material is easy to fall off powder after drying. Meanwhile, the silica aerogel is of an opening structure, and a solvent enters the silica aerogel and is difficult to completely remove, so that the heat conductivity coefficient of the composite material is increased. For example, CN107201687a discloses a method for preparing aerogel heat-insulating paper, in which the aerogel is normal pressure dried aerogel and supercritical dried aerogel, and the aerogel is added in an amount of 5-20% of the total mass of the fiber to prepare the heat-insulating paper, and the heat conductivity coefficient of the obtained heat-insulating paper is 0.026-0.03W/m·k, and the thermal weight loss rate is 10% at 800 ℃. However, when the addition amount of the aerogel reaches 20% of the total mass of the fiber, the heat conductivity coefficient of the heat insulation paper is 0.026W/m.K, the addition amount of the aerogel is larger, and the heat insulation effect is not relatively good.
How to further reduce the aerogel usage and at the same time obtain the heat insulation paper with lower heat conductivity coefficient is the technical problem to be solved by the invention.
Disclosure of Invention
In order to solve the technical problems, a heat-resistant and heat-insulating paper and a preparation method thereof are provided. The heat insulation paper has better heat resistance and heat insulation performance under the condition of less aerogel consumption, and has low production cost.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
A preparation method of heat-resistant and heat-insulating paper comprises the following steps:
(1) The preparation material comprises inorganic fibers, aerogel microspheres and a binder, wherein the dosage of the aerogel microspheres is 3-10% of the weight of the inorganic fibers; the inorganic fiber is prepared from polyacrylonitrile pre-oxidized fiber and glass fiber according to the mass ratio of 2-3:1;
(2) Uniformly dispersing the inorganic fibers in water to prepare fiber slurry, then adding the binder, uniformly mixing, and then adding the aerogel microspheres, and uniformly mixing to obtain mixed slurry;
(3) And (3) carrying out wet paper making by adopting the mixed slurry, and obtaining the temperature-resistant heat-insulating paper after suction dehydration and drying after molding.
Further, the length of the polyacrylonitrile pre-oxidized fiber is 1-5mm, and the diameter is 10-20 mu m; the length of the glass fiber is 2-4mm, and the diameter is 1-3 mu m.
Further, the aerogel microspheres are hydrophilic silica aerogel with the diameter of 5-30 mu m, the specific surface area of more than or equal to 500m 2/g and the porosity of more than or equal to 80 percent, and the heat conductivity of the aerogel microspheres is lower than that of air at normal temperature.
Further, the binder is a mixture of styrene-butadiene latex and polyacrylamide according to a mass ratio of 1-3:1, and the amount of the binder is 1-10% of the weight of the inorganic fibers.
Further, the mixed slurry is used for surfing the net at the time of manufacturing the wet paper sheet, the concentration of the mixed slurry is 0.1-0.3wt% and the quantitative paper sheet is 100-500g/m 2.
Further, the dryness of the wet paper sheet after the suction dehydration is 25-40%.
Further, the drying adopts microwave and/or infrared drying, and the drying temperature is 120-170 ℃.
Further, the mixed slurry is obtained by mixing in a dispersing machine of 100 to 300 rpm.
In another aspect, the invention provides the heat-resistant and heat-insulating paper obtained by the preparation method, wherein the average pore diameter of the heat-insulating paper is 5-10 mu m, the tensile strength is 550-650kPa, and the heat conductivity coefficient is 0.025-0.030W/(m.K).
The beneficial technical effects are as follows:
(1) The existing preparation method of the heat-resistant and heat-insulating paper is that silica gel is soaked in glass fiber cloth and then subjected to supercritical drying to obtain a silica aerogel composite material, and the silica aerogel composite material is seriously powder-falling during shaking by hands, so that the use is influenced. Compared with the method, the heat-resistant and heat-insulating paper containing the aerogel microspheres adopts the pre-oxidized fiber and the glass fiber, and has good heat-resistant and heat-insulating properties. The microspheres are used as filler to exist in the gaps of the heat-resistant and heat-insulating paper, are not easy to fall off, and do not fall off powder when pressed.
(2) Aerogel microspheres are added into the heat-resistant and heat-insulating paper, and the microspheres are used as fillers to exist in gaps of fibers, are not easy to fall off, do not fall off powder when pressed, and play a role in enhancing heat insulation.
(3) The preparation process of the pre-oxidized fiber heat-resistant heat-insulating paper is simple, supercritical drying is not needed, and the production process is simple and is suitable for large-scale production.
Drawings
Fig. 1 is a thermal weight loss TG curve of the thermal insulation paper of example 1.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The numerical values set forth in these examples do not limit the scope of the present invention unless specifically stated otherwise. Techniques, methods known to those of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.
The experimental methods in the following examples, for which specific conditions are not noted, are generally determined according to national standards; if the national standard is not corresponding, the method is carried out according to the general international standard or the standard requirements set by related enterprises. Unless otherwise indicated, all parts are parts by weight and all percentages are percentages by weight.
Example 1
A preparation method of heat-resistant and heat-insulating paper comprises the following steps:
(1) The preparation materials comprise inorganic fibers, aerogel microspheres and binders;
The dosage of the aerogel microspheres is 5% of the weight of the inorganic fibers, the particle size of the aerogel microspheres is 5-30 mu m, the specific surface area is more than or equal to 500m 2/g, and the porosity is more than or equal to 80%;
The using amount of the binder is 3% of the weight of the inorganic fiber, the binder is prepared from styrene-butadiene latex and polyacrylamide according to the weight ratio, and the styrene-butadiene latex and the polyacrylamide are uniformly mixed;
The inorganic fiber is prepared from polyacrylonitrile pre-oxidized fiber and glass fiber according to a mass ratio of 3:1, wherein the length of the polyacrylonitrile pre-oxidized fiber is 1-5mm, and the diameter of the polyacrylonitrile pre-oxidized fiber is 10-20 mu m; the length of the glass fiber is 2-4mm, and the diameter is 1-3 mu m;
(2) Mixing the polyacrylonitrile preoxidized fiber and the glass fiber, adding the mixture into a low-speed dispersing machine, adding water, and stirring at a rotating speed of 200rpm until the two fibers are fully mixed without flocculation, so as to obtain 1wt% of fiber slurry;
Then adding the binder, uniformly stirring, keeping for 15min, adding the aerogel microspheres, uniformly stirring, and keeping for 15min to obtain mixed slurry;
(3) The mixed pulp is adopted to enter a wet paper sheet making system for making, the net-surfing concentration of the mixed pulp during making is 0.2wt%, the paper sheet ration is 100g/m 2, the wet paper sheet is molded and then is pumped and dehydrated, the wet paper sheet is pressed to the dryness of 40 percent and is dried at 130 ℃ to obtain the temperature-resistant heat insulation paper.
The average pore diameter of the heat-resistant and heat-insulating paper is 7 mu m, the tensile strength is 635kPa, the heat conductivity coefficient is 0.028W/(m.K), the aerogel microspheres are firmly fixed in the gaps of the fibers, and the heat-resistant and heat-insulating paper does not fall off when being shaken.
In addition, TG tests are respectively carried out on the polyacrylonitrile pre-oxidized fiber and the heat insulation paper of the embodiment, and the mass loss rate of the polyacrylonitrile pre-oxidized fiber is 9.83% at 800 ℃, so that the polyacrylonitrile pre-oxidized fiber has good high temperature resistance. The heat-insulating paper of the embodiment has a mass residual rate of 86.74wt% at 800 ℃ and good high temperature resistance, and a specific TG curve of the heat-insulating paper is shown in figure 1.
Example 2
A preparation method of heat-resistant and heat-insulating paper comprises the following steps:
(1) The preparation materials comprise inorganic fibers, aerogel microspheres and binders;
the dosage of the aerogel microspheres is 8% of the weight of the inorganic fibers, the particle size of the aerogel microspheres is 5-30 mu m, the specific surface area is more than or equal to 500m 2/g, and the porosity is more than or equal to 80%;
The using amount of the binder is 5% of the weight of the inorganic fiber, the binder is prepared from styrene-butadiene latex and polyacrylamide according to the weight ratio, and the styrene-butadiene latex and the polyacrylamide are uniformly mixed;
The inorganic fiber is prepared from polyacrylonitrile pre-oxidized fiber and glass fiber according to a mass ratio of 2:1, wherein the length of the polyacrylonitrile pre-oxidized fiber is 1-5mm, and the diameter of the polyacrylonitrile pre-oxidized fiber is 10-20 mu m; the length of the glass fiber is 2-4mm, and the diameter is 1-3 mu m;
(2) Mixing the polyacrylonitrile preoxidized fiber and the glass fiber, adding the mixture into a low-speed dispersing machine, adding water, and stirring at a rotating speed of 200rpm until the two fibers are fully mixed without flocculation, so as to obtain 1wt% of fiber slurry;
Then adding the binder, uniformly stirring, keeping for 15min, adding the aerogel microspheres, uniformly stirring, and keeping for 15min to obtain mixed slurry;
(3) The mixed pulp is adopted to enter a wet paper sheet making system for making, the net-surfing concentration of the mixed pulp during making is 0.25wt%, the paper sheet ration is 300g/m 2, the wet paper sheet is molded and then is pumped and dehydrated, the wet paper sheet is pressed to dryness of 35%, and the temperature-resistant heat insulation paper is obtained after drying at 150 ℃.
The average pore diameter of the heat-resistant and heat-insulating paper is 6 mu m, the tensile strength is 605kPa, the heat conductivity coefficient is 0.026W/(m.K), the aerogel microspheres are firmly fixed in the gaps of the fibers, and the heat-resistant and heat-insulating paper does not fall off when being shaken.
Example 3
A preparation method of heat-resistant and heat-insulating paper comprises the following steps:
(1) The preparation materials comprise inorganic fibers, aerogel microspheres and binders;
The dosage of the aerogel microspheres is 10% of the weight of the inorganic fibers, the particle size of the aerogel microspheres is 5-30 mu m, the specific surface area is more than or equal to 500m 2/g, and the porosity is more than or equal to 80%;
The using amount of the binder is 10% of the weight of the inorganic fiber, the binder is prepared from styrene-butadiene latex and polyacrylamide according to the weight ratio, and the styrene-butadiene latex and the polyacrylamide are uniformly mixed;
The inorganic fiber is prepared from polyacrylonitrile pre-oxidized fiber and glass fiber according to a mass ratio of 2:1, wherein the polyacrylonitrile pre-oxidized fiber is 1-5mm and has a diameter of 10-20 mu m; the length of the glass fiber is 2-4mm, and the diameter is 1-3 mu m;
(2) Mixing the polyacrylonitrile preoxidized fiber and the glass fiber, adding the mixture into a low-speed dispersing machine, adding water, and stirring at a rotating speed of 200rpm until the two fibers are fully mixed without flocculation, so as to obtain 1wt% of fiber slurry;
Then adding the binder, uniformly stirring, keeping for 15min, adding the aerogel microspheres, uniformly stirring, and keeping for 15min to obtain mixed slurry;
(3) The mixed pulp is adopted to enter a wet paper sheet making system for making, the net-surfing concentration of the mixed pulp during making is 0.3wt%, the paper sheet ration is 500g/m 2, the wet paper sheet is molded and then is pumped and dehydrated, the wet paper sheet is pressed to the dryness of 30 percent, and the temperature-resistant heat insulation paper is obtained after drying at 170 ℃.
The average pore diameter of the heat-resistant and heat-insulating paper of the embodiment is 5 mu m, the tensile strength is 587kPa, the heat conductivity coefficient is 0.025W/(m.K), the aerogel microspheres are firmly fixed in the gaps of the fibers, and the heat-resistant and heat-insulating paper can not fall off when being shaken.
Comparative example 1
The heat insulating paper of this comparative example was prepared in the same manner as in example 1, except that the inorganic fibers did not have polyacrylonitrile pre-oxidized fibers.
Comparative example 2
The method of producing the heat insulating paper of this comparative example was the same as in example 1, except that the inorganic fiber was not provided with glass fiber.
Comparative example 3
The method for preparing the heat-insulating paper of the comparative example is the same as in example 1, except that the glass fiber and the polyacrylonitrile pre-oxidized fiber in the inorganic fiber are in equal mass ratio.
Comparative example 4
The comparative thermal insulation paper was prepared in the same manner as in example 1, except that the aerogel microspheres were added in an amount of 2% by mass of the fibers.
The thermal conductivity of the thermal insulation papers of the above examples and comparative examples was shown in table 1.
Table 1 properties of heat insulating paper of examples and comparative examples
As shown in Table 1, the heat insulation paper has higher tensile strength, and the heat insulation paper still has better heat insulation performance, relatively smaller heat conductivity coefficient and better high temperature resistance by adopting the pre-oxidized fiber and the glass fiber according to the mass ratio of 2-3:1 under the condition of less aerogel consumption.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The preparation method of the heat-resistant and heat-insulating paper is characterized by comprising the following steps of:
(1) The preparation materials comprise inorganic fibers, aerogel microspheres and binders;
The dosage of the aerogel microspheres is 5-10% of the weight of the inorganic fibers;
The inorganic fiber is prepared from polyacrylonitrile pre-oxidized fiber and glass fiber according to the mass ratio of 2-3:1;
The aerogel microsphere is hydrophilic silica aerogel, the diameter is 5-30 mu m, the specific surface area is more than or equal to 500m 2/g, the porosity is more than or equal to 80%, and the heat conductivity of the aerogel microsphere is lower than that of air at normal temperature;
The length of the polyacrylonitrile pre-oxidized fiber is 1-5mm, and the diameter is 10-20 mu m; the length of the glass fiber is 2-4mm, and the diameter is 1-3 mu m;
(2) Uniformly dispersing the inorganic fibers in water to prepare fiber slurry, then adding the binder, uniformly mixing, and then adding the aerogel microspheres, and uniformly mixing to obtain mixed slurry;
(3) Carrying out wet paper making by adopting the mixed slurry, and obtaining temperature-resistant heat insulation paper after suction dehydration and drying after molding;
The net-surfing concentration of the mixed slurry is 0.1-0.3wt% and the basis weight of the paper sheet is 100-500g/m 2 when the wet paper sheet is manufactured;
The average pore diameter of the heat insulation paper is 5-10 mu m, the tensile strength is 550-650kPa, and the heat conductivity coefficient is 0.025-0.030W/(m.K).
2. The method for preparing the heat-resistant and heat-insulating paper according to claim 1, wherein the binder is a mixture of styrene-butadiene latex and polyacrylamide according to a mass ratio of 1-3:1; the amount of the binder is 1-10% by weight of the inorganic fibers.
3. The method for producing a heat-resistant and heat-insulating paper according to claim 1, wherein the dryness of the wet paper sheet after suction dehydration is 25 to 40%.
4. The method for preparing the heat-resistant and heat-insulating paper according to claim 1, wherein the drying is performed by microwave and/or infrared, and the drying temperature is 120-170 ℃.
5. The method for producing a heat-resistant and heat-insulating paper according to claim 1, wherein the mixed slurry is obtained by mixing in a dispersing machine at 100 to 300 rpm.
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| CN202211406132.5A CN115874488B (en) | 2022-11-10 | 2022-11-10 | Temperature-resistant heat-insulating paper and preparation method thereof |
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| CN115874488B true CN115874488B (en) | 2024-05-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314999A (en) * | 2014-07-29 | 2016-02-10 | 金承黎 | Nano porous high-temperature-insulating material taking thixotropic colloid as template agent and preparation method for high-temperature-insulating material |
| CN107201687A (en) * | 2016-03-16 | 2017-09-26 | 北京化工大学 | The preparation method of aerogel heat-proof paper |
| CN108373316A (en) * | 2018-05-17 | 2018-08-07 | 航天特种材料及工艺技术研究所 | A kind of aerogel heat-proof paper and preparation method thereof |
| CN111622016A (en) * | 2020-04-30 | 2020-09-04 | 南京珈时新材料科技有限公司 | Pressure-resistant heat-insulating paper containing hollow porous silica microspheres and preparation method thereof |
| CN115162049A (en) * | 2022-06-27 | 2022-10-11 | 广东省科学院生物与医学工程研究所 | Preparation method and application of aerogel heat insulation paper |
-
2022
- 2022-11-10 CN CN202211406132.5A patent/CN115874488B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314999A (en) * | 2014-07-29 | 2016-02-10 | 金承黎 | Nano porous high-temperature-insulating material taking thixotropic colloid as template agent and preparation method for high-temperature-insulating material |
| CN107201687A (en) * | 2016-03-16 | 2017-09-26 | 北京化工大学 | The preparation method of aerogel heat-proof paper |
| CN108373316A (en) * | 2018-05-17 | 2018-08-07 | 航天特种材料及工艺技术研究所 | A kind of aerogel heat-proof paper and preparation method thereof |
| CN111622016A (en) * | 2020-04-30 | 2020-09-04 | 南京珈时新材料科技有限公司 | Pressure-resistant heat-insulating paper containing hollow porous silica microspheres and preparation method thereof |
| CN115162049A (en) * | 2022-06-27 | 2022-10-11 | 广东省科学院生物与医学工程研究所 | Preparation method and application of aerogel heat insulation paper |
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