CN111873574A - Nanoscale aerogel heat insulation felt - Google Patents

Nanoscale aerogel heat insulation felt Download PDF

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Publication number
CN111873574A
CN111873574A CN202010745087.0A CN202010745087A CN111873574A CN 111873574 A CN111873574 A CN 111873574A CN 202010745087 A CN202010745087 A CN 202010745087A CN 111873574 A CN111873574 A CN 111873574A
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aerogel
heat insulation
felt
nano
insulation felt
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CN202010745087.0A
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王鑫星
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Nanjing Lasd New Material Technology Co ltd
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Nanjing Lasd New Material Technology Co ltd
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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
    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
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    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • B32B5/06—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 structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
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    • 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
    • B32B5/20—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 foamed in situ
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    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/028—Composition or method of fixing a thermally insulating material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2266/12—Gel
    • B32B2266/126—Aerogel, i.e. a supercritically dried gel
    • 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
    • B32B2307/304—Insulating
    • 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
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance

Abstract

The invention discloses a nano-scale aerogel heat insulation felt which is prepared by processing and compounding nano-silica aerogel serving as a main material and a pre-oxidized fiber felt, and the preparation method comprises the following steps: dissolving a silicon source in water according to the mass ratio of 1:3, removing impurities, and controlling the pH of the mixed solution to be 6-8; adding silicon-aluminum gel liquid into the mixed liquid, adjusting the pH to 1-2, and adding Amania water to adjust the pH to 5-7 to obtain silica sol; pre-laying a pre-reinforcing layer made of glass fiber materials on the surface of the silica sol before or after hydrophobic treatment, and pre-reinforcing the pre-reinforcing layer with the nano silica aerogel felt body by a needling method; the nanoscale aerogel heat insulation felt is suitable for high-temperature application environment with the temperature as high as 650 ℃, the heat insulation performance is more than 5 times that of the traditional heat insulation product, and the nanoscale aerogel heat insulation felt is safe, non-combustible, environment-friendly, flexible and easy to install.

Description

Nanoscale aerogel heat insulation felt
Technical Field
The invention relates to the technical field of aerogel, in particular to a nanoscale aerogel heat insulation felt.
Background
Aerogel is a solid form, the least dense solid in the world. The density was 3 kg per cubic meter. A common aerogel is a silica aerogel, which was first produced by Kistler, the american scientist, in 1931 because of gambling with her friends. There are many kinds of aerogels, including silicon-based, carbon-based, sulfur-based, metal oxide-based, metal-based, and the like. aerogel is a combination word where aeroo is an adjective, meaning flying, and gel is obviously a gel. Literally means a gel that can fly. Any gel can be called aerogel as long as it can be dried and the internal solvent is removed, and the shape of the gel can be basically kept unchanged, and the product has high porosity and low density.
Because of the extremely low density, the lightest aerogels are only 0.16 milligrams per cubic centimeter, slightly less dense than air, and are also known as "frozen smoke" or "blue smoke". Since the particles inside are very small (on the order of nanometers), visible light is scattered less through it (rayleigh scattering) as sunlight passes through the air. It therefore looks blue like the sky (if nothing else is doped inside) and somewhat red against the light. (sky is blue and evening sky is red). As the aerogel is generally more than 80 percent of air, the aerogel has very good heat insulation effect, and one inch of thick aerogel has the heat insulation function equivalent to that of 20 to 30 pieces of common glass. Even with the aerogel placed between the rose and the flame, the rose is not damaged at all. Aerogels have also found many uses in aerospace exploration, and such materials are useful in Russian "peace" space stations and in American "Mars pathfinder" detectors. Aerogels have also been used in particle physics experiments as detectors of the Cherotkoff effect. A particle discriminator, called Aerogel Cherenkov Counter (ACC), in the Belle test detector of the dielectric factory of the high-energy accelerator institute B, is a recent application example. The detector utilizes the low refractive index between liquid and gas of aerogel, and the high transmittance and solid state of aerogel, which is superior to the conventional method using low temperature liquid or high pressure air. Meanwhile, the light weight property is also one of the advantages;
the traditional heat insulation material has certain defects, is easy to deform and settle, has poor thermal stability, high breakage rate and poor later-stage heat insulation effect, cannot meet the process requirements, has poor heat insulation effect, leads to the improvement of the maintenance cost of heat insulation engineering, increases the equipment operation cost, has short service life, needs to be replaced completely due to failure, is inconvenient to install and has high transportation cost, and therefore, the nanometer aerogel heat insulation felt is provided.
Disclosure of Invention
The invention mainly aims to provide a clamping jaw locking device which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
the nanometer aerogel heat insulation felt is prepared by taking nanometer silica aerogel as a main material and compounding the nanometer silica aerogel and a pre-oxidized fiber felt through processing.
A preparation method of a nanometer aerogel heat insulation felt comprises the following steps:
step one, dissolving a silicon source in water according to the mass ratio of 1:3, removing impurities, and controlling the pH of a mixed solution to be 6-8;
adding silicon-aluminum gel liquid into the mixed liquid, adjusting the pH to 1-2, and adding Amania water to adjust the pH to 5-7 to obtain silica sol;
thirdly, pre-laying a pre-reinforcing layer made of glass fiber materials on the surface of the silica sol before or after hydrophobic treatment, and pre-reinforcing the pre-reinforcing layer and the nano silica aerogel felt body by a needling method;
step four, pressing the bonding layer through preheating, and then hot-pressing a layer of aramid fabric, polyester fabric and a high polymer film on the surface of the bonding layer;
and fifthly, putting the treated bonding layer, the aramid fabric, the polyester fabric and the polymer film into an oven, drying for 2-4h, taking out and packaging to finish the preparation of the aerogel heat insulation felt.
Preferably, the polymer film is a film made of an organic polymer.
Preferably, the polyester fabric is a synthetic fiber obtained by spinning polyester obtained by polycondensation of organic dibasic acid and dihydric alcohol.
Preferably, in the fifth step, drying is performed by using a drying box, and the specification of the drying box is 2 × 1 × 1.5 m.
Preferably, the silica alumina gel liquid has a crosslink density of 1/5-1/10 typical of addition type liquid silicone rubbers.
Compared with the prior art, the invention has the following beneficial effects: the nanometer aerogel heat insulation felt is suitable for high-temperature application environments with the temperature as high as 650 ℃, the heat insulation performance is more than 5 times that of the traditional heat insulation products, the nanometer aerogel heat insulation felt is safe, A-level (smokeless) and non-combustible, environment-friendly, flexible and easy to install, the heat loss can be reduced, the total construction cost is reduced, a pipeline placed in the air can cause heat loss when transmitting a heat medium, if heat insulation measures are not taken, the heat loss can reach about 85%, the heat loss when the aerogel heat insulation felt is used for heat insulation is only 25% of that of the traditional heat insulation materials, and the heat loss of a heat network is 2% and is less than the international standard requirement.
Drawings
FIG. 1 is a graph of thermal conductivity versus temperature change for aerogel and other insulating materials;
FIG. 2 is a comparison graph of thermal conductivity of aerogel thermal insulation coating and traditional thermal insulation material.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1-2, a nano-scale aerogel thermal insulation blanket is prepared by processing and compounding nano-silica aerogel as a main material with a pre-oxidized fiber blanket.
A preparation method of a nanometer aerogel heat insulation felt comprises the following steps:
step one, dissolving a silicon source in water according to the mass ratio of 1:3, removing impurities, and controlling the pH of a mixed solution to be 6-8;
adding silicon-aluminum gel liquid into the mixed liquid, adjusting the pH to 1-2, and adding Amania water to adjust the pH to 5-7 to obtain silica sol;
thirdly, pre-laying a pre-reinforcing layer made of glass fiber materials on the surface of the silica sol before or after hydrophobic treatment, and pre-reinforcing the pre-reinforcing layer and the nano silica aerogel felt body by a needling method;
step four, pressing the bonding layer through preheating, and then hot-pressing a layer of aramid fabric, polyester fabric and a high polymer film on the surface of the bonding layer;
and fifthly, putting the treated bonding layer, the aramid fabric, the polyester fabric and the polymer film into an oven, drying for 2-4h, taking out and packaging to finish the preparation of the aerogel heat insulation felt.
The high molecular film is a film made of organic high molecular polymer; the terylene cloth is a synthetic fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and dihydric alcohol; drying by using a drying box in the fifth step, wherein the specification of the drying box is 2 x 1 x 1.5 m; the cross-linking density of the silicon-aluminum gel liquid is 1/5-1/10 of the common addition type liquid silicon rubber.
Example 1
The nanometer aerogel heat insulation felt takes nanometer silicon dioxide aerogel as a main material and is compounded with a preoxidized fiber felt to form the aerogel heat insulation felt.
Through detection, the thermal conductivity (W/m.k) of the nanoscale aerogel thermal insulation felt is 0.032, the density (KG/L) is 0.54 +/-0.02, the volume solid content (%) is 72%, and the long-term use temperature (DEG C) is-40-150.
Example 2
During preparation, a silicon source is dissolved in water according to the mass ratio of 1:3, impurities are removed, and the pH value of the mixed solution is controlled to be 6; adding silicon-aluminum gel liquid into the mixed liquid, adjusting the pH to 1.5, and adding Amania water to adjust the pH to 5 to obtain silica sol; pre-laying a pre-reinforcing layer made of glass fiber materials on the surface of the silica sol before or after hydrophobic treatment, and pre-reinforcing the pre-reinforcing layer with the nano silica aerogel felt body by a needling method; preheating and pressing the bonding layer, and then hot-pressing a layer of aramid fabric, polyester fabric and a high-molecular film on the surface of the bonding layer; and (3) putting the treated bonding layer, the aramid fabric, the polyester fabric and the polymer film into an oven, drying for 3 hours, taking out and packaging to finish the preparation of the aerogel heat insulation felt.
The detection shows that the temperature resistance range (DEG C) of the nano-scale aerogel heat insulation felt is-60-800, the moisture resistance (h) is 2000, the aging resistance (h) is 600, and the nano-scale aerogel heat insulation felt is wear-resistant and moderately strong.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The nanometer aerogel heat insulation felt is characterized in that nanometer silica aerogel is used as a main body material, and the nanometer aerogel and a pre-oxidized fiber felt are compounded to form the nanometer aerogel heat insulation felt.
2. The method for preparing the nano-scale aerogel heat insulation felt according to claim 1, wherein the method comprises the following steps: the preparation method comprises the following steps:
step one, dissolving a silicon source in water according to the mass ratio of 1:3, removing impurities, and controlling the pH of a mixed solution to be 6-8;
adding silicon-aluminum gel liquid into the mixed liquid, adjusting the pH to 1-2, and adding Amania water to adjust the pH to 5-7 to obtain silica sol;
thirdly, pre-laying a pre-reinforcing layer made of glass fiber materials on the surface of the silica sol before or after hydrophobic treatment, and pre-reinforcing the pre-reinforcing layer and the nano silica aerogel felt body by a needling method;
step four, pressing the bonding layer through preheating, and then hot-pressing a layer of aramid fabric, polyester fabric and a high polymer film on the surface of the bonding layer;
and fifthly, putting the treated bonding layer, the aramid fabric, the polyester fabric and the polymer film into an oven, drying for 2-4h, taking out and packaging to finish the preparation of the aerogel heat insulation felt.
3. The nano-sized aerogel thermal insulation blanket as claimed in claim 1, wherein: the polymer film is a film made of organic polymer.
4. The nano-sized aerogel thermal insulation blanket as claimed in claim 1, wherein: the polyester fabric is a synthetic fiber obtained by spinning polyester obtained by polycondensation of organic dibasic acid and dihydric alcohol.
5. The nano-sized aerogel thermal insulation blanket as claimed in claim 1, wherein: and step five, drying by using a drying box, wherein the specification of the drying box is 2 x 1 x 1.5 m.
6. The nano-sized aerogel thermal insulation blanket as claimed in claim 1, wherein: the cross-linking density of the silicon-aluminum gel liquid is 1/5-1/10 of the common addition type liquid silicon rubber.
CN202010745087.0A 2020-07-29 2020-07-29 Nanoscale aerogel heat insulation felt Pending CN111873574A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114889252A (en) * 2022-04-29 2022-08-12 广东埃力生高新科技有限公司 Aerogel-bi-component needled fiber felt composite material and preparation method and application thereof

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CN205832336U (en) * 2016-04-29 2016-12-28 上海交通大学医学院附属第九人民医院 A kind of for nasal trachea cannula wing of nose press resistant pillar
CN109053131A (en) * 2018-08-01 2018-12-21 苏州天脉导热科技股份有限公司 Oxidization fiber aerogel blanket and preparation method thereof

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CN205832336U (en) * 2016-04-29 2016-12-28 上海交通大学医学院附属第九人民医院 A kind of for nasal trachea cannula wing of nose press resistant pillar
CN106079690A (en) * 2016-06-13 2016-11-09 江苏德威节能有限公司 A kind of aerosil felt of strong weatherability and preparation method thereof
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Application publication date: 20201103