CN101792298A - High-temperature heat-insulating coating and preparation method thereof - Google Patents
High-temperature heat-insulating coating and preparation method thereof Download PDFInfo
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- CN101792298A CN101792298A CN201010100964A CN201010100964A CN101792298A CN 101792298 A CN101792298 A CN 101792298A CN 201010100964 A CN201010100964 A CN 201010100964A CN 201010100964 A CN201010100964 A CN 201010100964A CN 101792298 A CN101792298 A CN 101792298A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
- C04B41/5089—Silica sols, alkyl, ammonium or alkali metal silicate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00431—Refractory materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00551—Refractory coatings, e.g. for tamping
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a high-temperature heat-insulating coating which is prepared from the following raw materials: 20-70 percent of ceramic fibers, 10-55 percent of silica sol or water glass or a mixture of the silica sol and the water glass according to any proportion, 5-40 percent of activated alumina powder or aluminum hydroxide powder or a mixture of the activated alumina powder and the aluminum hydroxide powder according to any proportion, 0-50 percent of filler, 1-10 percent of high-viscosity adhesive, 0-3 percent of foaming agent and water (containing the silica sol, the water glass and the water for dispersing the ceramic fibers) 2-5 times the weight of total weight of solid materials. The prepared high-temperature heat-insulating coating has even adhesion, easy construction, flat coating, high temperature resistance after drying and good heat insulation.
Description
(1), technical field the present invention relates to a kind of thermal insulation coatings, particularly a kind of high-temperature heat-insulating coating.The heat insulating of main high temperature position as equipment such as kilns.The invention still further relates to the preparation method of described high-temperature heat-insulating coating.
(2), the maximum operation (service) temperature of the at present commercially available thermal insulation coatings of background technology such as calcium silicate heat-preserving coating, magnesium metasilicate heat preservation coating and rare earth thermal insulation coatings is all below 1000 ℃, can not satisfy the heat insulating demand of equipment high temperature positions more than 1000 ℃ such as kiln.Ceramic fiber enlarges day by day in the application prospect aspect the high temperature burning kiln in recent years, and with refractory felt, blanket based article that ceramic fiber is made, maximum operation (service) temperature can reach more than 1600 ℃.Features such as it is easy to use with good heat-insulation effect, and particularly accumulation of heat is little, and resistance to sudden heating is good generally are used in the various kiln, demonstrate very high energy-saving efficiency.But need wrap up and reinforce subsidiary material during the construction of above-mentioned ceramic fibre, construction difficulty and heat insulating coefficient are poor.In order to reduce thermosteresis, save energy, a kind of high temperature resistant, easy construction of market in urgent need, the high-temperature heat-insulating coating that heat insulation property is good.
(3), summary of the invention technical problem to be solved by this invention is, a kind of high-temperature heat-insulating coating and preparation method thereof is provided, and prepares high temperature resistant, easy construction, high-temperature heat-insulating coating that heat insulation property is good.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of high-temperature heat-insulating coating, it is characterized in that: composition of raw materials is as follows: ceramic fiber 20～70wt.%, silicon sol or water glass or both press arbitrary proportion and mix 10～55wt.%, active oxidation aluminium powder or aluminium hydrate powder or both press arbitrary proportion and mix 5～40wt.%, filler 0～50wt.%, highly tacky adhesive 1～10wt.%, foam agent 0～3wt.%, water (water that comprises silicon sol and water glass and disperse ceramic fiber to bring into) are 2～5 times of solid materials gross weight.
Described active oxidation aluminium powder or aluminium hydrate powder or both are 8～25wt.% by the add-on of arbitrary proportion mixture
Described highly tacky adhesive is that polyacrylamide or ether of cellulose or both mix by arbitrary proportion.
Described filler is a wollastonite powder, and add-on is 10～20wt.%.
Described foam agent is a Sodium dodecylbenzene sulfonate.
The preparation method of high-temperature heat-insulating coating is characterized in that:
Step is as follows:
(1), in proportion get ceramic fiber, add the water of ceramic fiber weight more than 30 times, remove unnecessary water after disperseing with dispersion machine;
(2), in the ceramic fiber that step (1) was handled, add the silicon sol of described ratio or water glass or both and press the mixture of arbitrary proportion, active oxidation aluminium powder or aluminium hydrate powder or both press the arbitrary proportion mixing, filler and water stir;
(3) highly tacky adhesive and the foam agent of the described ratio of adding in the mixture of step (2) stir into thick even lotion.
The preparation method of another kind of high-temperature heat-insulating coating is characterized in that:
Step is as follows:
(1), in proportion get ceramic fiber, add a certain amount of water infiltration after, add the silicon sol of described ratio or water glass or both by the mixture of arbitrary proportion, stir;
(2), in the mixture of step (1), add the active oxidation aluminium powder of described ratio or aluminium hydrate powder or both and press arbitrary proportion mixing and filler, stir;
(3), in the mixture that step (2) makes, add highly tacky adhesive, foam agent and the water of described ratio, stir into thick even lotion.
Positively effect of the present invention is: the temperature resistant grade of (1), thermal insulation coatings of the present invention is decided according to the temperature resistant grade of the ceramic fiber of selecting for use, can make temperature resistant grade at 1000 ℃～1600 ℃ high-temperature heat-insulating coating, aggregate uses ceramic fiber, help reducing this thermal insulation coatings dry density, improve fire resistance rating, improve thermal shock resistance.
(2), the bad dispersibility of ceramic fiber, be difficult to make even lotion, if the inhomogeneous meeting of coating of making causes the coating application difficulty, coating is inhomogeneous, ftracture easily, influence heat-insulating property, poor durability is selected the polyacrylamide with unique bond properties or the mixture of ether of cellulose or the two arbitrary proportion for use, itself and resistant to elevated temperatures inorganic glue silicon sol or water glass synergy, make ceramic fiber easily disperse, coating is very even, has solved the problems referred to above well.This thermal insulation coatings not only has higher normal temperature cohesive strength but also has high temperature cohesive strength preferably simultaneously.
(3), the interpolation of active oxidation aluminium powder or aluminium hydrate powder, in the follow-up use of coating, chemical reaction that can the accelerating system storeroom under hot conditions makes strength of coating strengthen, and improves the temperature resistant grade and the hot strength of thermal insulation coatings.
(4), raw material sources of the present invention are extensive, preparation technology is simple, need not to carry out reacting by heating, directly is applied in during use on the equipment such as the kiln that needs insulation, pipeline, is specially adapted to the heat preservation construction at on-plane surface position, cost is lower.
(4), embodiment is described further technical scheme of the present invention below in conjunction with embodiment:
Ingredient requirement is in the embodiment of the invention: ceramic fiber is velvet-like or fibrous; The solid content of silicon sol, water glass is 35～43wt.% being advisable with 38～41wt.%; Polyacrylamide, ether of cellulose are Powdered or fine particulate.
Embodiment 1
Get temperature grade and be 1260 ℃ ceramic fiber 700g, remove unnecessary water (surplus about 1750g water) after disperseing with dispersion machine with the water of 21kg, add silicon sol 50g and water glass 60g, active oxidation aluminium powder 100g, wollastonite powder 100g, water 100g stirs, add polyacrylamide 10g then, stir into thick even lotion.
Embodiment 2
Get temperature grade and be 1260 ℃ ceramic fiber 500g, remove unnecessary water (surplus about 1250g water), adding silicon sol 550g, active oxidation aluminium powder 200g after disperseing with dispersion machine with the water of 30kg, aluminium hydrate powder 200g, wollastonite powder 400g, water 4.5kg stirs, add polyacrylamide 60g then, ether of cellulose 40g, Sodium dodecylbenzene sulfonate 30g stirs into thick even lotion.
Embodiment 3
Get temperature grade and be 1260 ℃ ceramic fiber 200g, use the 600g water infiltration, add water glass 315g, aluminium hydrate powder 200g, wollastonite powder 200g stirs, add ether of cellulose 70g then, Sodium dodecylbenzene sulfonate 15g and water 3.2kg stir into thick even lotion.
Embodiment 4
Get temperature grade and be 1260 ℃ ceramic fiber 200g 500g water infiltration, add silicon sol 110g, stir, add aluminium hydrate powder 80g again, stir, add polyacrylamide 42g and water 740g again, stir into thick even lotion.
Embodiment 5
Get temperature grade and be 1600 ℃ ceramic fiber 200g 500g water infiltration, add silicon sol 110g, stir, add aluminium hydrate powder 80g again, stir, add polyacrylamide 42g and water 740g again, stir into thick even lotion.
Comparative Examples 1
Get temperature grade and be 1260 ℃ ceramic fiber 700g, remove unnecessary water (surplus about 1750g water) after disperseing with dispersion machine with the water of 21kg, add silicon sol 50g, water glass 60g, active oxidation aluminium powder 100g, wollastonite powder 100g stirs, and adds solid contents then and is 2% 801 glue 750g and stir.Alr mode is identical with embodiment 1, no matter churning time length all can't become thick even lotion.
Comparative Examples 2
Get temperature grade and be 1600 ℃ ceramic fiber 200g 500g water infiltration, add silicon sol 110g, stir, add aluminium hydrate powder 80g again, stir, add solid contents again and be 4% polyvinyl alcohol glue 750g, stir.Alr mode is identical with embodiment 5, no matter churning time length all can't become thick even lotion.
The salient features of obtained material is as follows:
By the foregoing description 1 and 5 and Comparative Examples 1 and 2 relatively, the thermal insulation coatings of selecting for use the performance of the thermal insulation coatings that polyacrylamide or ether of cellulose and silicon sol or water glass makes as wedding agent obviously to be better than selecting for use 801 glue or polyvinyl alcohol glue and silicon sol or water glass to make as wedding agent.
Claims (7)
1. high-temperature heat-insulating coating, it is characterized in that: composition of raw materials is as follows: ceramic fiber 20～70wt.%, silicon sol or water glass or both press arbitrary proportion and mix 10～55wt.%, active oxidation aluminium powder or aluminium hydrate powder or both press arbitrary proportion and mix 5～40wt.%, filler 0～50wt.%, highly tacky adhesive 1～10wt.%, foam agent 0～3wt.%, water (water that comprises silicon sol and water glass and disperse ceramic fiber to bring into) are 2～5 times of solid materials gross weight.
2. high-temperature heat-insulating coating as claimed in claim 1 is characterized in that: active oxidation aluminium powder or aluminium hydrate powder or both are 8～25wt.% by the add-on of arbitrary proportion mixture
3. high-temperature heat-insulating coating as claimed in claim 1 is characterized in that: described highly tacky adhesive is that polyacrylamide or ether of cellulose or both mix by arbitrary proportion.
4. high-temperature heat-insulating coating as claimed in claim 1 is characterized in that: described filler is a wollastonite powder, and add-on is 10～20wt.%.
5. high-temperature heat-insulating coating as claimed in claim 1 is characterized in that: described foam agent is a Sodium dodecylbenzene sulfonate.
6. the preparation method of high-temperature heat-insulating coating as claimed in claim 1 is characterized in that:
Step is as follows:
(1), in proportion get ceramic fiber, add the water of ceramic fiber weight more than 30 times, remove unnecessary water after disperseing with dispersion machine;
(2), in the ceramic fiber that step (1) was handled, add the silicon sol of described ratio or water glass or both and press the mixture of arbitrary proportion, active oxidation aluminium powder or aluminium hydrate powder or both press the arbitrary proportion mixing, filler and water stir;
(3) highly tacky adhesive and the foam agent of the described ratio of adding in the mixture of step (2) stir into thick even lotion.
7. the preparation method of high-temperature heat-insulating coating as claimed in claim 1, it is characterized in that: step is as follows:
(1), in proportion get ceramic fiber, add a certain amount of water infiltration after, add the silicon sol of described ratio or water glass or both by the mixture of arbitrary proportion, stir;
(2), in the mixture of step (1), add the active oxidation aluminium powder of described ratio or aluminium hydrate powder or both and press arbitrary proportion mixture and filler, stir;
(3), in the mixture that step (2) makes, add highly tacky adhesive, foam agent and the water of described ratio, stir into thick even lotion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010101009645A CN101792298B (en) | 2010-01-26 | 2010-01-26 | High-temperature heat-insulating coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101009645A CN101792298B (en) | 2010-01-26 | 2010-01-26 | High-temperature heat-insulating coating and preparation method thereof |
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| CN101792298A true CN101792298A (en) | 2010-08-04 |
| CN101792298B CN101792298B (en) | 2012-05-23 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603319A (en) * | 2012-03-15 | 2012-07-25 | 苏州伊索来特耐火纤维有限公司 | Aluminum silicate ceramic fiber surface coating capable of being used at temperature of 1600 DEG C |
| CN102898110A (en) * | 2012-09-17 | 2013-01-30 | 江苏塞尚低碳科技有限公司 | Thick-layer putty for heat insulation of wall |
| CN103011861A (en) * | 2012-12-18 | 2013-04-03 | 山西高科耐火材料股份有限公司 | Glass kiln-used dry type micro-expansion heat preservation coating |
| CN103421367A (en) * | 2013-08-19 | 2013-12-04 | 南通市通州区益君劳务有限公司 | Insulating coating |
| CN103803938A (en) * | 2013-12-27 | 2014-05-21 | 广西吉顺能源科技有限公司 | Fireproofing heat-preservation material used on wall surface and preparation process thereof |
| CN104694924A (en) * | 2013-12-10 | 2015-06-10 | 辽宁法库陶瓷工程技术研究中心 | Preparation method and device of high-temperature-resistant ceramic coating on inner wall of small-caliber special-shaped metal pipe |
| CN104805681A (en) * | 2015-04-22 | 2015-07-29 | 哈尔滨工业大学 | Preparation method of flexible thermal insulation felt surface coating |
| CN109053168A (en) * | 2018-10-10 | 2018-12-21 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of superhigh temperature light thermal-insulation coating |
| CN111621175A (en) * | 2020-06-03 | 2020-09-04 | 山东民烨耐火纤维有限公司 | Ceramic fiber coating containing nano-alumina |
| CN112197593A (en) * | 2020-10-15 | 2021-01-08 | 浙江圣诺隔热材料有限公司 | Manufacturing and mounting method of high-temperature kiln furnace lining |
| CN114105616A (en) * | 2021-11-30 | 2022-03-01 | 中钢集团洛阳耐火材料研究院有限公司 | Novel low-loss protective material for rocket launching platform |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033083C (en) * | 1993-01-13 | 1996-10-23 | 陈云 | Composite silicate flexible thermal insulation material |
| GB2341607B (en) * | 1998-09-15 | 2000-07-19 | Morgan Crucible Co | Bonded fibrous materials |
-
2010
- 2010-01-26 CN CN2010101009645A patent/CN101792298B/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603319A (en) * | 2012-03-15 | 2012-07-25 | 苏州伊索来特耐火纤维有限公司 | Aluminum silicate ceramic fiber surface coating capable of being used at temperature of 1600 DEG C |
| CN102603319B (en) * | 2012-03-15 | 2014-01-01 | 苏州伊索来特耐火纤维有限公司 | Aluminum silicate ceramic fiber surface coating capable of being used at temperature of 1600 DEG C |
| CN102898110A (en) * | 2012-09-17 | 2013-01-30 | 江苏塞尚低碳科技有限公司 | Thick-layer putty for heat insulation of wall |
| CN103011861B (en) * | 2012-12-18 | 2014-07-16 | 山西高科耐火材料股份有限公司 | Glass kiln-used dry type micro-expansion heat preservation coating |
| CN103011861A (en) * | 2012-12-18 | 2013-04-03 | 山西高科耐火材料股份有限公司 | Glass kiln-used dry type micro-expansion heat preservation coating |
| CN103421367A (en) * | 2013-08-19 | 2013-12-04 | 南通市通州区益君劳务有限公司 | Insulating coating |
| CN104694924A (en) * | 2013-12-10 | 2015-06-10 | 辽宁法库陶瓷工程技术研究中心 | Preparation method and device of high-temperature-resistant ceramic coating on inner wall of small-caliber special-shaped metal pipe |
| CN103803938A (en) * | 2013-12-27 | 2014-05-21 | 广西吉顺能源科技有限公司 | Fireproofing heat-preservation material used on wall surface and preparation process thereof |
| CN104805681A (en) * | 2015-04-22 | 2015-07-29 | 哈尔滨工业大学 | Preparation method of flexible thermal insulation felt surface coating |
| CN104805681B (en) * | 2015-04-22 | 2016-08-17 | 哈尔滨工业大学 | A kind of preparation method of flexible heat insulation felt face coat |
| CN109053168A (en) * | 2018-10-10 | 2018-12-21 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of superhigh temperature light thermal-insulation coating |
| CN111621175A (en) * | 2020-06-03 | 2020-09-04 | 山东民烨耐火纤维有限公司 | Ceramic fiber coating containing nano-alumina |
| CN112197593A (en) * | 2020-10-15 | 2021-01-08 | 浙江圣诺隔热材料有限公司 | Manufacturing and mounting method of high-temperature kiln furnace lining |
| CN114105616A (en) * | 2021-11-30 | 2022-03-01 | 中钢集团洛阳耐火材料研究院有限公司 | Novel low-loss protective material for rocket launching platform |
| CN114105616B (en) * | 2021-11-30 | 2023-11-14 | 中钢集团洛阳耐火材料研究院有限公司 | Rocket launching platform low-loss protective material |
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| CN101792298B (en) | 2012-05-23 |
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