CN109836949A - A kind of high temperature resistant silica-based aerogel coating and preparation method thereof - Google Patents
A kind of high temperature resistant silica-based aerogel coating and preparation method thereof Download PDFInfo
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- CN109836949A CN109836949A CN201910184730.4A CN201910184730A CN109836949A CN 109836949 A CN109836949 A CN 109836949A CN 201910184730 A CN201910184730 A CN 201910184730A CN 109836949 A CN109836949 A CN 109836949A
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- high temperature
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- based aerogel
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Abstract
The present invention provides a kind of high temperature resistant silica-based aerogel coating, the substance including following composition by weight, 10 ~ 30 parts of high temperature resistant aeroge powder, 1 ~ 5 part of binder, 0.5 ~ 1 part of function additive, 1 ~ 2 part of inorganic refractory fiber, 80 ~ 100 parts of film forming agent, 1 ~ 2 part of coalescing agent.The present invention also provides a kind of preparation methods of high temperature resistant silica-based aerogel coating.The coating of resistance to silica-based aerogel in the present invention can be used for a long time under 1200 DEG C of environment, have Efficient high-temperature heat-insulating property, resistance to thermal shock cycle performance, the good performance of application property.
Description
Technical field
The present invention relates to aeroge fields more particularly to a kind of high temperature resistant silica-based aerogel coating and preparation method thereof.
Background technique
Insulating moulding coating reduces the temperature of coating and internal environment by preventing heat transfer, to reach improvement building ring
Border reduces the purpose of energy consumption, and aeroge is a kind of nanoporous light material of structure-controllable, has nanostructure, surface area
Greatly, hole ratio is high, and the nano-porous structure grain of aeroge is showing aerogel material macroscopically specific to nano material
Interfacial effect and small-size effect, are a kind of super insulating materials with unusual performance and high added value, but aeroge because
It is special to result in that aeroge intensity itself is low, brittleness is big etc. for the features such as its unique network structure and high porosity and low-density
Point is easily broken under ambient pressure, and therefore, in many fields, aeroge is difficult to use separately as heat-barrier material,
Aeroge and other materials need to be compounded to form aeroge coating by the shortcomings that in order to overcome aeroge itself, and in the prior art
Aeroge coating high temperature resistance it is poor, heat insulation is poor.
Summary of the invention
Goal of the invention: in view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of high temperature resistant silica-based aerogel
Coating and preparation method thereof.
The innovation of the invention consists in that the coating of resistance to silica-based aerogel in the present invention can make for a long time under 1200 DEG C of environment
With with Efficient high-temperature heat-insulating property, resistance to thermal shock cycle performance, the good performance of application property.
Technical solution: in order to achieve the above object of the invention, the present invention is specifically achieved like this: a kind of high temperature resistant silicon substrate
Aeroge coating, the substance including following composition by weight, 10 ~ 30 parts of high temperature resistant aeroge powder, 1 ~ 5 part of binder, function helps
0.5 ~ 1 part of agent, 1 ~ 2 part of inorganic refractory fiber, 80 ~ 100 parts of film forming agent, 1 ~ 2 part of coalescing agent.
Further, the binder is silica-base material, and the function additive is magnesia, aluminum oxide or fluosilicic acid
Sodium, the coalescing agent are one or more of benzyl alcohol, butyl glycol ether, propylene glycol phenylate, alcohol ester-12, the film forming
Agent is pure-acrylic emulsion or elastic acrylate lotion.
A kind of preparation method of high temperature resistant silica-based aerogel coating, comprising the following steps:
(1) it is formed and is mixed after mixing the water glass solution that mass concentration is 20% ~ 30% in a reservoir by volume 1:1 ~ 2 with water
Liquid, in mixed liquor be added dopant after stir evenly, the dopant be aluminium, zirconium, titanium inorganic salts it is one or more,
The dopant quality is 0.05 ~ 0.1 times of water glass solution quality, then hydrochloric acid is instilled into container with 2 ~ 4 drops/s speed
The pH value of mixed liquor is adjusted to 2 ~ 4,20 ~ 30min is stirred after adjusting and forms comprehensive silicon based sols, adds dehydrated alcohol,
The volume ratio of comprehensive silicon based sols and dehydrated alcohol is 1:1 ~ 5, continues to stir 10 ~ 20min minutes and obtains epoxy glue；
(2) pH value for instilling ammonium hydroxide adjusting epoxy glue in epoxy glue with 2 ~ 4 drops/s speed stands gelling to be mixed to 7 ~ 9
After Gu, by container as 20 ~ 50min is heated in 40 ~ 50 DEG C of water-bath, aging is carried out, the epoxy glue in container forms gel；
(3) gel after aging is pulverized, 1 ~ 2h is washed with deionized, filtered, filter residue immerses glycerol and gathers after suction filtration
In ethylene oxide, wherein the mass ratio of glycerol and polyethylene glycol oxide is 30 ~ 50:50 ~ 70, after 20 ~ 40min of agitator treating, is carried out
It filters, filtered filter residue 1 ~ 2h of constant pressure and dry at 60 ~ 80 DEG C obtains silica-based aerogel powder；
(4) by silica-based aerogel powder at 1200 ~ 2000 DEG C 1 ~ 2h of high temperature sintering, obtain high temperature resistant silicon substrate aerogel powder；
(5) 10 ~ 30 parts of high temperature resistant aeroge powder are taken, 1 ~ 5 part of binder, 0.5 ~ 1 part of function additive, inorganic refractory fiber 1 ~ 2
Part, it 80 ~ 100 parts of film forming matter, 1 ~ 2 part of coalescing agent, stirs evenly, grinds 20 ~ 60min.
Beneficial effects of the present invention: compared with traditional technology, the present invention has the advantage that
The coating of resistance to silica-based aerogel in the present invention can be used for a long time under 1200 DEG C of environment, have Efficient high-temperature thermal insulation
Energy, resistance to thermal shock cycle performance, the good performance of application property.
Specific embodiment
Embodiment 1: a kind of high temperature resistant silica-based aerogel coating, the substance including following composition by weight, high temperature resistant aeroge
10 parts of powder, 1 part of binder, 0.5 part of function additive, 1 part of inorganic refractory fiber, 80 parts of film forming agent, 1 part of coalescing agent, bonding
Agent is silica-base material, and function additive is magnesia, and coalescing agent is benzyl alcohol, and film forming agent is pure-acrylic emulsion.
Embodiment 2: a kind of high temperature resistant silica-based aerogel coating, the substance including following composition by weight, high temperature resistant aeroge
20 parts of powder, 3 parts of binder, 0.8 part of function additive, 1.5 parts of inorganic refractory fiber, 90 parts of film forming agent, 1.5 parts of coalescing agent,
Binder is silica-base material, and function additive is aluminum oxide, and coalescing agent is butyl glycol ether, and film forming agent is elastomeric propylene acid
Ester lotion.
Embodiment 3: a kind of high temperature resistant silica-based aerogel coating, the substance including following composition by weight, high temperature resistant aeroge
30 parts of powder, 5 parts of binder, 1 part of function additive, 2 parts of inorganic refractory fiber, 100 parts of film forming agent, 2 parts of coalescing agent, binder
For silica-base material, function additive is prodan, and coalescing agent is propylene glycol phenylate, and film forming agent is pure-acrylic emulsion.
Embodiment 4: a kind of high temperature resistant silica-based aerogel coating, the substance including following composition by weight, high temperature resistant aeroge
30 parts of powder, 5 parts of binder, 1 part of function additive, 2 parts of inorganic refractory fiber, 100 parts of film forming agent, 2 parts of coalescing agent, binder
For silica-base material, function additive is magnesia, and coalescing agent is alcohol ester-12, and film forming agent is elastic acrylate lotion.
Embodiment 5: a kind of high temperature resistant silica-based aerogel coating, 10 parts of high temperature resistant aeroge powder, 1 part of binder, function
0.5 part of auxiliary agent, 1 part of inorganic refractory fiber, 80 parts of film forming agent, 1 part of coalescing agent, binder is silica-base material, and function additive is
Prodan, coalescing agent are benzyl alcohol, butyl glycol ether, propylene glycol phenylate, mixture several in alcohol ester-12, film forming agent
For pure-acrylic emulsion.
A kind of embodiment 6: preparation method of high temperature resistant silica-based aerogel coating, comprising the following steps:
(1) mixed liquor is formed after mixing the water glass solution that mass concentration is 20% in a reservoir by volume 1:1 with water, mixed
It closes and is stirred evenly after dopant is added in liquid, dopant is aluminum metal inorganic salts, and dopant quality is water glass solution quality
0.05 times, then with 2 ~ 4 drops/s speed instilled into container hydrochloric acid adjust mixed liquor pH value to 2, be stirred after adjusting
20min forms comprehensive silicon based sols, adds dehydrated alcohol, and the volume ratio of comprehensive silicon based sols and dehydrated alcohol is 1:1, continues
It stirs 10min minutes and obtains epoxy glue；
(2) it is solid to stand gelling to be mixed to 7 for the pH value for instilling ammonium hydroxide adjusting epoxy glue in epoxy glue with 2 ~ 4 drops/s speed
Afterwards, by container as 20min is heated in 40 DEG C of water-bath, aging is carried out, the epoxy glue in container forms gel；
(3) gel after aging is pulverized, 1h is washed with deionized, filtered, filter residue immerses glycerol and polyoxy after suction filtration
Change in ethylene, wherein the mass ratio of glycerol and polyethylene glycol oxide is 30:70, after agitator treating 20min, is filtered, after suction filtration
Filter residue at 60 DEG C constant pressure and dry 1h, obtain silica-based aerogel powder；
(4) by silica-based aerogel powder at 1200 DEG C high temperature sintering 1h, obtain high temperature resistant silicon substrate aerogel powder；
(5) 10 parts of high temperature resistant aeroge powder are taken, 1 part of binder, 0.5 part of function additive, 1 part of inorganic refractory fiber, film forming agent
It 80 parts, 1 part of coalescing agent, stirring evenly, grinds 20min, binder is silica-base material, and function additive is magnesia, at
Film auxiliary agent is benzyl alcohol, and film forming agent is pure-acrylic emulsion.
A kind of embodiment 7: preparation method of high temperature resistant silica-based aerogel coating, comprising the following steps:
(1) mixed liquor is formed after mixing the water glass solution that mass concentration is 25% in a reservoir by volume 1:1.5 with water,
It is stirred evenly after dopant is added in mixed liquor, dopant is zirconium metal inorganic salt, and dopant quality is water glass solution quality
0.08 times, then with 2 ~ 4 drops/s speed instilled into container hydrochloric acid adjust mixed liquor pH value to 3, be stirred after adjusting
25min forms comprehensive silicon based sols, adds dehydrated alcohol, and the volume ratio of comprehensive silicon based sols and dehydrated alcohol is 1:3, continues
It stirs 15min minutes and obtains epoxy glue；
(2) it is solid to stand gelling to be mixed to 8 for the pH value for instilling ammonium hydroxide adjusting epoxy glue in epoxy glue with 2 ~ 4 drops/s speed
Afterwards, by container as 35min is heated in 45 DEG C of water-bath, aging is carried out, the epoxy glue in container forms gel；
(3) gel after aging is pulverized, 1.5h is washed with deionized, filtered, filter residue immerses glycerol and gathers after suction filtration
In ethylene oxide, wherein the mass ratio of glycerol and polyethylene glycol oxide is 40:60, after agitator treating 30min, is filtered, and is filtered
The constant pressure and dry 1.5h at 70 DEG C of filter residue afterwards, obtains silica-based aerogel powder；
(4) by silica-based aerogel powder at 1600 DEG C high temperature sintering 1.5h, obtain high temperature resistant silicon substrate aerogel powder；
(5) 20 parts of high temperature resistant aeroge powder are taken, 3 parts of binder, 0.8 part of function additive, 1.5 parts of inorganic refractory fiber, is formed a film
It 90 parts of agent, 1.5 parts of coalescing agent, stirs evenly, grinds 20 ~ 60min, binder is silica-base material, function additive three
Al 2 O, coalescing agent are butyl glycol ether, and film forming agent is elastic acrylate lotion.
A kind of embodiment 8: preparation method of high temperature resistant silica-based aerogel coating, comprising the following steps:
(1) mixed liquor is formed after mixing the water glass solution that mass concentration is 30% in a reservoir by volume 1:2 with water, mixed
It closes and is stirred evenly after dopant is added in liquid, the dopant is titanium inorganic salts, and dopant quality is water glass solution matter
0.1 times of amount, then the pH value that hydrochloric acid adjusting mixed liquor is instilled into container with 2 ~ 4 drops/s speed are stirred after adjusting to 4
30min forms comprehensive silicon based sols, adds dehydrated alcohol, and the volume ratio of comprehensive silicon based sols and dehydrated alcohol is 1:5, after
Continuous stir 20min minutes obtains epoxy glue；
(2) it is solid to stand gelling to be mixed to 9 for the pH value for instilling ammonium hydroxide adjusting epoxy glue in epoxy glue with 2 ~ 4 drops/s speed
Afterwards, by container as 50min is heated in 50 DEG C of water-bath, aging is carried out, the epoxy glue in container forms gel；
(3) gel after aging is pulverized, 2h is washed with deionized, filtered, filter residue immerses glycerol and polyoxy after suction filtration
Change in ethylene, wherein the mass ratio of glycerol and polyethylene glycol oxide is 50:70, after agitator treating 40min, is filtered, after suction filtration
Filter residue at 80 DEG C constant pressure and dry 2h, obtain silica-based aerogel powder；
(4) by silica-based aerogel powder at 2000 DEG C high temperature sintering 2h, obtain high temperature resistant silicon substrate aerogel powder；
(5) 30 parts of high temperature resistant aeroge powder are taken, 5 parts of binder, 1 part of function additive, 2 parts of inorganic refractory fiber, film forming agent 100
Part, it 2 parts of coalescing agent, stirring evenly, grinds 20 ~ 60min, binder is silica-base material, and function additive is prodan,
Coalescing agent is propylene glycol phenylate, and film forming agent is pure-acrylic emulsion.
A kind of embodiment 9: preparation method of high temperature resistant silica-based aerogel coating, comprising the following steps:
(1) mixed liquor is formed after mixing the water glass solution that mass concentration is 20% in a reservoir by volume 1:1 with water, mixed
It closes and is stirred evenly after dopant is added in liquid, dopant is two or more mixtures of aluminium, zirconium, titanium inorganic salts, doping
Agent quality is 0.05 times of water glass solution quality, then instills hydrochloric acid into container with 2 ~ 4 drops/s speed and adjust mixed liquor
PH value is stirred 20min and forms comprehensive silicon based sols to 2 after adjusting, add dehydrated alcohol, comprehensive silicon based sols with it is anhydrous
The volume ratio of ethyl alcohol is 1:1, continues to stir 10min minutes and obtains epoxy glue；
(2) it is solid to stand gelling to be mixed to 7 for the pH value for instilling ammonium hydroxide adjusting epoxy glue in epoxy glue with 2 ~ 4 drops/s speed
Afterwards, by container as 20min is heated in 40 DEG C of water-bath, aging is carried out, the epoxy glue in container forms gel；
(3) gel after aging is pulverized, 1h is washed with deionized, filtered, filter residue immerses glycerol and polyoxy after suction filtration
Change in ethylene, wherein the mass ratio of glycerol and polyethylene glycol oxide is 30:70, after agitator treating 20min, is filtered, after suction filtration
Filter residue at 60 DEG C constant pressure and dry 1h, obtain silica-based aerogel powder；
(4) by silica-based aerogel powder at 1200 DEG C high temperature sintering 1h, obtain high temperature resistant silicon substrate aerogel powder；
(5) 30 parts of high temperature resistant aeroge powder are taken, 5 parts of binder, 1 part of function additive, 2 parts of inorganic refractory fiber, film forming agent 100
Part, 2 parts of coalescing agent, binder is silica-base material, and function additive is magnesia, and coalescing agent is alcohol ester-12, and film forming agent is bullet
Property acrylic acid ester emulsion.It stirs evenly, grinds 20min,
A kind of embodiment 10: preparation method of high temperature resistant silica-based aerogel coating, comprising the following steps:
(1) mixed liquor is formed after mixing the water glass solution that mass concentration is 25% in a reservoir by volume 1:1.5 with water,
It is stirred evenly after dopant is added in mixed liquor, dopant is zirconium metal inorganic salt, and dopant quality is water glass solution quality
0.08 times, then with 2 ~ 4 drops/s speed instilled into container hydrochloric acid adjust mixed liquor pH value to 3, be stirred after adjusting
25min forms comprehensive silicon based sols, adds dehydrated alcohol, and the volume ratio of comprehensive silicon based sols and dehydrated alcohol is 1:3, continues
It stirs 15min minutes and obtains epoxy glue；
(2) it is solid to stand gelling to be mixed to 8 for the pH value for instilling ammonium hydroxide adjusting epoxy glue in epoxy glue with 2 ~ 4 drops/s speed
Afterwards, by container as 35min is heated in 45 DEG C of water-bath, aging is carried out, the epoxy glue in container forms gel；
(3) gel after aging is pulverized, 1.5h is washed with deionized, filtered, filter residue immerses glycerol and gathers after suction filtration
In ethylene oxide, wherein the mass ratio of glycerol and polyethylene glycol oxide is 40:60, after agitator treating 30min, is filtered, and is filtered
The constant pressure and dry 1.5h at 70 DEG C of filter residue afterwards, obtains silica-based aerogel powder；
(4) by silica-based aerogel powder at 1600 DEG C high temperature sintering 1.5h, obtain high temperature resistant silicon substrate aerogel powder；
(5) 10 parts of high temperature resistant aeroge powder are taken, 1 part of binder, 0.5 part of function additive, 1 part of inorganic refractory fiber, film forming agent
It 80 parts, 1 part of coalescing agent, stirs evenly, grinds 20 ~ 60min, binder is silica-base material, and function additive is fluosilicic acid
Sodium, coalescing agent are benzyl alcohol, butyl glycol ether, propylene glycol phenylate, mixture several in alcohol ester-12, and film forming agent is pure C
Lotion.
Claims (3)
1. a kind of high temperature resistant silica-based aerogel coating, which is characterized in that the substance including following composition by weight, high temperature resistant aeroge
10 ~ 30 parts of powder, 1 ~ 5 part of binder, 0.5 ~ 1 part of function additive, 1 ~ 2 part of inorganic refractory fiber, 80 ~ 100 parts of film forming agent, film forming
1 ~ 2 part of auxiliary agent.
2. high temperature resistant silica-based aerogel coating according to claim 1, which is characterized in that the binder is silicon substrate
Material, the function additive be magnesia, aluminum oxide or prodan, the coalescing agent be benzyl alcohol, butyl glycol ether,
One or more of propylene glycol phenylate, alcohol ester-12, the film forming agent are pure-acrylic emulsion or elastic acrylate lotion.
3. a kind of preparation method of high temperature resistant silica-based aerogel coating, which comprises the following steps:
(1) it is formed and is mixed after mixing the water glass solution that mass concentration is 20% ~ 30% in a reservoir by volume 1:1 ~ 2 with water
Liquid, in mixed liquor be added dopant after stir evenly, the dopant be aluminium, zirconium, titanium inorganic salts it is one or more,
The dopant quality is 0.05 ~ 0.1 times of water glass solution quality, then hydrochloric acid is instilled into container with 2 ~ 4 drops/s speed
The pH value of mixed liquor is adjusted to 2 ~ 4,20 ~ 30min is stirred after adjusting and forms comprehensive silicon based sols, adds dehydrated alcohol,
The volume ratio of comprehensive silicon based sols and dehydrated alcohol is 1:1 ~ 5, continues to stir 10 ~ 20min minutes and obtains epoxy glue；
(2) pH value for instilling ammonium hydroxide adjusting epoxy glue in epoxy glue with 2 ~ 4 drops/s speed stands gelling to be mixed to 7 ~ 9
After Gu, by container as 20 ~ 50min is heated in 40 ~ 50 DEG C of water-bath, aging is carried out, the epoxy glue in container forms gel；
(3) gel after aging is pulverized, 1 ~ 2h is washed with deionized, filtered, filter residue immerses glycerol and gathers after suction filtration
In ethylene oxide, wherein the mass ratio of glycerol and polyethylene glycol oxide is 30 ~ 50:50 ~ 70, after 20 ~ 40min of agitator treating, is carried out
It filters, filtered filter residue 1 ~ 2h of constant pressure and dry at 60 ~ 80 DEG C obtains silica-based aerogel powder；
(4) by silica-based aerogel powder at 1200 ~ 2000 DEG C 1 ~ 2h of high temperature sintering, obtain high temperature resistant silicon substrate aerogel powder；
(5) 10 ~ 30 parts of high temperature resistant aeroge powder are taken, 1 ~ 5 part of binder, 0.5 ~ 1 part of function additive, inorganic refractory fiber 1 ~ 2
Part, it 80 ~ 100 parts of film forming matter, 1 ~ 2 part of coalescing agent, stirs evenly, grinds 20 ~ 60min.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910184730.4A CN109836949A (en) | 2019-03-12 | 2019-03-12 | A kind of high temperature resistant silica-based aerogel coating and preparation method thereof |
| NL1043461A NL1043461B1 (en) | 2019-03-12 | 2019-11-15 | High-temperature resistant silicon-based aerogel paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910184730.4A CN109836949A (en) | 2019-03-12 | 2019-03-12 | A kind of high temperature resistant silica-based aerogel coating and preparation method thereof |
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| CN109836949A true CN109836949A (en) | 2019-06-04 |
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| CN201910184730.4A Pending CN109836949A (en) | 2019-03-12 | 2019-03-12 | A kind of high temperature resistant silica-based aerogel coating and preparation method thereof |
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| NL (1) | NL1043461B1 (en) |
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| CN112961592A (en) * | 2021-04-19 | 2021-06-15 | 苏州康丽达精密电子有限公司 | Functional aerogel heat-insulating coating and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275530A (en) * | 2013-06-08 | 2013-09-04 | 陕西盟创纳米新型材料股份有限公司 | Silica aerogel coating and application thereof |
| CN107098352A (en) * | 2016-02-20 | 2017-08-29 | 金承黎 | A kind of preparation method of high temperature resistant aeroge and aerogel type porous ceramics |
-
2019
- 2019-03-12 CN CN201910184730.4A patent/CN109836949A/en active Pending
- 2019-11-15 NL NL1043461A patent/NL1043461B1/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275530A (en) * | 2013-06-08 | 2013-09-04 | 陕西盟创纳米新型材料股份有限公司 | Silica aerogel coating and application thereof |
| CN107098352A (en) * | 2016-02-20 | 2017-08-29 | 金承黎 | A kind of preparation method of high temperature resistant aeroge and aerogel type porous ceramics |
Non-Patent Citations (2)
| Title |
|---|
| 王立久等: "《新型屋面材料》", 31 October 2012, 中国建材工业出版社 * |
| 韩庆华等: "《大跨建筑结构》", 28 February 2014, 天津大学出版社 * |
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| NL1043461A (en) | 2020-09-17 |
| NL1043461B1 (en) | 2021-11-16 |
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Application publication date: 20190604 |