CN115874488A - 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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- CN115874488A CN115874488A CN202211406132.5A CN202211406132A CN115874488A CN 115874488 A CN115874488 A CN 115874488A CN 202211406132 A CN202211406132 A CN 202211406132A CN 115874488 A CN115874488 A CN 115874488A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000004964 aerogel Substances 0.000 claims abstract description 45
- 239000000835 fiber Substances 0.000 claims abstract description 40
- 239000004005 microsphere Substances 0.000 claims abstract description 32
- 239000012784 inorganic fiber Substances 0.000 claims abstract description 28
- 239000003365 glass fiber Substances 0.000 claims abstract description 27
- 239000011230 binding agent Substances 0.000 claims abstract description 21
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 21
- 239000011268 mixed slurry Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000018044 dehydration Effects 0.000 claims abstract description 6
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 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
- 238000000034 method Methods 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
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 239000004965 Silica aerogel Substances 0.000 claims description 3
- 238000007603 infrared drying Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 31
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 10
- 238000003756 stirring Methods 0.000 description 9
- 239000002131 composite material Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 238000000352 supercritical drying Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 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
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 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
- 239000012774 insulation material Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing 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
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention relates to temperature-resistant heat-insulating paper and a preparation method thereof, wherein the preparation method comprises the following steps: (1) Preparing materials including inorganic fibers, aerogel microspheres and a binder; the using amount of the aerogel microspheres is 3-10% of the weight of the inorganic fibers; the inorganic fiber is prepared from polyacrylonitrile preoxidized fiber and glass fiber according to a mass ratio of 2-3; (2) Uniformly dispersing the inorganic fibers in water to prepare fiber slurry, then adding the binder and uniformly mixing, adding the aerogel microspheres and uniformly mixing to obtain mixed slurry; (3) And (3) making a wet paper sheet by using the mixed slurry, and performing suction dehydration and drying after molding to obtain the temperature-resistant heat-insulating paper. The heat insulation paper has good temperature resistance and heat insulation performance and insulation performance under the condition of less aerogel consumption, and is low in production cost.
Description
Technical Field
The invention relates to the technical field of special paper, in particular to temperature-resistant heat-insulation paper and a preparation method thereof.
Background
With the rapid development of economy, the requirements on low carbon and energy conservation are higher and higher, and the temperature-resistant heat-insulating material is a novel functional material. The temperature-resistant heat-insulating material can effectively prevent heat transfer, reduce heat loss and achieve the effects of energy conservation and emission reduction.
Based on the fact that the conduction rate of heat in the air is far smaller than that of heat in a solid material, functional fillers with high porosity and low heat conductivity coefficient are added into the temperature-resistant heat-insulating paper, and the heat is forced to conduct through the air in air holes, so that the heat conductivity coefficient of the temperature-resistant heat-insulating paper is greatly reduced, and the purposes of heat preservation and heat insulation are achieved.
The glass fiber is an inorganic non-metallic material with excellent performance, has 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, and 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 after being dried. Meanwhile, the silicon dioxide aerogel is of an open structure, and a solvent enters the silicon dioxide aerogel and is difficult to be completely removed, so that the heat conductivity coefficient of the composite material is increased. For example, CN107201687A discloses a preparation method of aerogel heat insulation paper, which adopts aerogel as normal pressure drying aerogel and supercritical drying aerogel, and adds the aerogel in an amount of 5-20% of the total mass of the fiber to prepare the heat insulation paper, wherein the heat conductivity coefficient of the obtained heat insulation paper is 0.026-0.03W/m.k, and the thermal weight loss rate at 800 ℃ is 10%. However, when the addition amount of the aerogel reaches 20% of the total mass of the fibers, the thermal conductivity coefficient of the thermal insulation paper is 0.026W/m.K, the addition amount of the aerogel is large, and the thermal insulation effect is not relatively superior.
How to further reduce the amount of aerogel and 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, the temperature-resistant heat-insulation paper and the preparation method thereof are provided. The heat insulation paper has better temperature resistance and heat insulation performance and insulation performance under the condition of less aerogel consumption, and has low production cost.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a preparation method of temperature-resistant heat-insulating paper comprises the following steps:
(1) The preparation material comprises inorganic fiber, aerogel microspheres and a binder, wherein the using amount of the aerogel microspheres is 3-10% of the weight of the inorganic fiber; the inorganic fiber is prepared from polyacrylonitrile preoxidized fiber and glass fiber according to a mass ratio of 2-3;
(2) Uniformly dispersing the inorganic fibers in water to prepare fiber slurry, then adding the binder and uniformly mixing, then adding the aerogel microspheres and uniformly mixing to obtain mixed slurry;
(3) And (3) making a wet paper sheet by using the mixed slurry, and performing suction dehydration and drying after molding to obtain the temperature-resistant heat-insulating paper.
Further, the polyacrylonitrile pre-oxidized fiber has the length of 1-5mm and the diameter of 10-20 μm; the length of the glass fiber is 2-4mm, and the diameter of the glass fiber is 1-3 mu m.
Further, the aerogel microspheres are hydrophilic silica aerogel with the diameter of 5-30 mu m and the specific surface area of more than or equal to 500m 2 The porosity is more than or equal to 80 percent, and the heat conductivity coefficient 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.
Furthermore, the net feeding concentration of the mixed pulp during the wet paper sheet making is 0.1-0.3wt%, and the basis weight of the paper sheet is 100-500g/m 2 。
Further, the dryness of the wet paper sheet after suction dewatering 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 disperser at 100-300 rpm.
The invention also provides the temperature-resistant 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 thermal conductivity is 0.025-0.030W/(m.K).
The beneficial technical effects are as follows:
(1) The existing preparation method of the temperature-resistant heat-insulating paper is to soak silica gel in glass fiber cloth and then adopt supercritical drying to obtain a silica aerogel composite material, and the composite material has serious powder falling when shaken by hands, thereby influencing the use. Compared with the method, the temperature-resistant heat-insulating paper containing the aerogel microspheres adopts pre-oxidized fiber and glass fiber, and has good temperature-resistant heat-insulating performance. The microspheres as fillers exist in gaps of the temperature-resistant heat-insulating paper, are not easy to fall off and do not fall off when being pressed.
(2) Aerogel microspheres are added into the temperature-resistant heat-insulation paper, exist in gaps of the fibers as fillers, are not easy to fall off, do not fall off powder when being pressed, and play a role in enhancing heat insulation.
(3) The pre-oxidized fiber temperature-resistant heat-insulating paper is simple in preparation process, free of supercritical drying and simple in production process, and is suitable for large-scale production.
Drawings
Fig. 1 is a thermal weight loss TG curve of the insulation paper of example 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Unless specifically stated otherwise, the numerical values set forth in these examples do not limit the scope of the invention. Techniques, methods known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.
The experimental methods, for which specific conditions are not noted in the following examples, are generally determined according to national standards; if no corresponding national standard exists, the method is carried out according to the universal international standard or the standard requirement 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 temperature-resistant heat-insulating paper comprises the following steps:
(1) Preparing materials including inorganic fibers, aerogel microspheres and a binder;
the using amount of the aerogel microspheres is 5 percent of the weight of the inorganic fiber, the particle size of the aerogel microspheres is 5-30 mu m, and the specific surface area is more than or equal to 500m 2 The porosity is more than or equal to 80 percent;
the dosage of the binder is 3% of the weight of the inorganic fiber, the binder is prepared by styrene-butadiene latex and polyacrylamide according to equal weight proportion, 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 the mass ratio of 3 to 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 μm; the length of the glass fiber is 2-4mm, and the diameter of the glass fiber is 1-3 mu m;
(2) Mixing the polyacrylonitrile preoxidized fiber and the glass fiber, adding the mixture into a low-speed disperser, adding water, and stirring at the rotating speed of 200rpm until the two fibers are fully mixed without flocs, so as to obtain 1wt% of fiber slurry;
then adding the binder, stirring uniformly, keeping for 15min, adding the aerogel microspheres, stirring uniformly, and keeping for 15min to obtain mixed slurry;
(3) The mixed pulp enters a wet paper sheet making system for making paper, the net feeding concentration of the mixed pulp during making paper is 0.2wt%, and the basis weight of the paper is 100g/m 2 And after the wet paper sheet is formed, suction dehydration is carried out, the wet paper sheet is pressed to the dryness of 40 percent and dried at 130 ℃ to obtain the temperature-resistant heat-insulating paper.
The average pore diameter of the temperature-resistant heat-insulating paper is 7 microns, the tensile strength is 635kPa, the thermal conductivity is 0.028W/(m.K), the aerogel microspheres are firmly fixed in the gaps of the fibers, and the powder cannot fall off when the temperature-resistant heat-insulating paper is 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 at 800 ℃ is 9.83%, so that the polyacrylonitrile pre-oxidized fiber has better high temperature resistance. The mass residue rate of the heat insulation paper of the embodiment at 800 ℃ is 86.74wt%, the heat insulation paper has better high temperature resistance, and the specific TG curve of the heat insulation paper is shown in figure 1.
Example 2
A preparation method of temperature-resistant heat-insulating paper comprises the following steps:
(1) Preparing materials including inorganic fibers, aerogel microspheres and a binder;
the dosage of the aerogel microspheres is 8 percent of the weight of the inorganic fiber, the particle size of the aerogel microspheres is 5-30 mu m, and the specific surface area is more than or equal to 500m 2 The porosity is more than or equal to 80 percent;
the dosage of the binder is 5 percent of the weight of the inorganic fiber, the binder is prepared by styrene-butadiene latex and polyacrylamide according to equal weight proportion, and the styrene-butadiene latex and the polyacrylamide are uniformly mixed;
the inorganic fiber is prepared from polyacrylonitrile preoxidized fiber and glass fiber according to the mass ratio of 2 to 1, wherein the length of the polyacrylonitrile preoxidized fiber is 1-5mm, and the diameter of the polyacrylonitrile preoxidized fiber is 10-20 mu m; the length of the glass fiber is 2-4mm, and the diameter of the glass fiber 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 the rotating speed of 200rpm until the two fibers are fully mixed without flocs to obtain 1wt% of fiber slurry;
then adding the binder, stirring uniformly, keeping for 15min, adding the aerogel microspheres, stirring uniformly, and keeping for 15min to obtain mixed slurry;
(3) The mixed pulp enters a wet paper sheet making system for making paper, the net surfing concentration of the mixed pulp during making paper is 0.25wt%, and the basis weight of the paper is 300g/m 2 And after the wet paper sheet is formed, suction dehydration is carried out, the wet paper sheet is pressed to 35% dryness, and drying is carried out at 150 ℃ to obtain the temperature-resistant heat-insulation paper.
The average pore diameter of the temperature-resistant heat-insulating paper in the embodiment is 6 μm, the tensile strength is 605kPa, and the thermal conductivity is 0.026W/(m · K), and the aerogel microspheres are firmly fixed in the gaps of the fibers, so that the powder cannot fall off when the temperature-resistant heat-insulating paper is shaken.
Example 3
A preparation method of temperature-resistant heat-insulating paper comprises the following steps:
(1) Preparing materials including inorganic fibers, aerogel microspheres and a binder;
the dosage of the aerogel microspheres is 10 percent of the weight of the inorganic fiber, the particle size of the aerogel microspheres is 5-30 mu m, and the specific surface area is more than or equal to 500m 2 The porosity is more than or equal to 80 percent;
the dosage of the binder is 10 percent of the weight of the inorganic fiber, the binder is prepared by styrene-butadiene latex and polyacrylamide according to equal weight proportion, 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 the mass ratio of 2 to 1, wherein the polyacrylonitrile pre-oxidized fiber is 1-5mm and has the diameter of 10-20 mu m; the length of the glass fiber is 2-4mm, and the diameter of the glass fiber 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 the rotating speed of 200rpm until the two fibers are fully mixed without flocs to obtain 1wt% of fiber slurry;
then adding the binder, stirring uniformly, keeping for 15min, adding the aerogel microspheres, stirring uniformly, and keeping for 15min to obtain mixed slurry;
(3) By usingThe mixed pulp enters a wet paper sheet making system for making paper, the net feeding concentration of the mixed pulp during making paper is 0.3wt%, and the basis weight of the paper sheet is 500g/m 2 And after the wet paper sheet is formed, performing suction dehydration, pressing the wet paper sheet to the dryness of 30 percent, and drying at 170 ℃ to obtain the temperature-resistant heat-insulating paper.
The average pore diameter of the temperature-resistant heat-insulating paper is 5 μm, the tensile strength is 587kPa, and the thermal conductivity is 0.025W/(m.K), the aerogel microspheres are firmly fixed in the gaps of the fibers, and the powder cannot fall off when the temperature-resistant heat-insulating paper is shaken.
Comparative example 1
The thermal insulation paper of this comparative example was prepared in the same manner as in example 1, except that no polyacrylonitrile pre-oxidized fiber was included in the inorganic fibers.
Comparative example 2
The comparative example insulation paper was prepared in the same manner as in example 1 except that no glass fiber was included in the inorganic fiber.
Comparative example 3
The preparation method of the heat insulation paper of the comparative example is the same as that of the example 1, except that the mass ratio of the glass fiber to the polyacrylonitrile pre-oxidized fiber in the inorganic fiber is equal.
Comparative example 4
The preparation method of the thermal insulation paper of the comparative example is the same as that of example 1, except that the addition amount of the aerogel microspheres is 2% of the mass of the fibers.
The thermal conductivity was measured for the thermal insulating papers of the above examples and comparative examples, and the results are shown in table 1.
TABLE 1 thermal insulating paper Properties of examples and comparative examples
As can be seen from Table 1, the heat insulation paper has high tensile strength, and under the condition that the aerogel consumption is low, the heat insulation paper still has good heat insulation performance and relatively low heat conductivity coefficient and good high temperature resistance by adopting the pre-oxidized fiber and the glass fiber according to the mass ratio of 2-3.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. The preparation method of the temperature-resistant heat-insulating paper is characterized by comprising the following steps:
(1) Preparing materials including inorganic fibers, aerogel microspheres and a binder;
the using amount of the aerogel microspheres is 3-10% of the weight of the inorganic fibers;
the inorganic fiber is prepared from polyacrylonitrile preoxidized fiber and glass fiber according to a mass ratio of 2-3;
(2) Uniformly dispersing the inorganic fibers in water to prepare fiber slurry, then adding the binder and uniformly mixing, then adding the aerogel microspheres and uniformly mixing to obtain mixed slurry;
(3) And (3) making a wet paper sheet by using the mixed slurry, and performing suction dehydration and drying after molding to obtain the temperature-resistant heat-insulating paper.
2. The preparation method of the temperature-resistant and heat-insulating paper according to claim 1, wherein the polyacrylonitrile pre-oxidized fiber has a length of 1-5mm and a diameter of 10-20 μm; the length of the glass fiber is 2-4mm, and the diameter is 1-3 μm.
3. The preparation method of the temperature-resistant heat-insulating paper as claimed in claim 1, wherein the aerogel microspheres are hydrophilic silica aerogel, the diameter is 5-30 μm, and the specific surface area is more than or equal to 500m 2 The porosity is more than or equal to 80%, and the heat conductivity coefficient of the aerogel microspheres is lower than that of air at normal temperature.
4. The preparation method of the temperature-resistant heat-insulating paper according to claim 1, wherein the binder is a mixture of styrene-butadiene latex and polyacrylamide in a mass ratio of 1-3; the amount of the binder is 1-10% of the weight of the inorganic fiber.
5. The method for preparing the temperature-resistant and heat-insulating paper as claimed in claim 1, wherein the mixed pulp has a net density of 0.1-0.3wt% and a basis weight of 100-500g/m in wet paper sheet making 2 。
6. The method for preparing the temperature-resistant and heat-insulating paper as claimed in claim 1, wherein the dryness of the wet paper sheet after suction dewatering is 25-40%.
7. The method for preparing the temperature-resistant and heat-insulating paper according to claim 1, wherein the drying is carried out by microwave and/or infrared drying at 120-170 ℃.
8. The method for preparing the temperature-resistant and heat-insulating paper according to claim 1, wherein the mixed slurry is obtained by mixing in a disperser at 100-300 rpm.
9. The temperature-resistant heat-insulating paper prepared by the preparation method according to any one of claims 1 to 8, wherein the average pore diameter of the heat-insulating paper is 5 to 10 μm, the tensile strength is 550 to 650kPa, and the thermal conductivity is 0.025 to 0.030W/(m-K).
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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 |
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- 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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