CN105503269A - Preparing method for bonding material used for particulate trap - Google Patents
Preparing method for bonding material used for particulate trap Download PDFInfo
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- CN105503269A CN105503269A CN201510938673.6A CN201510938673A CN105503269A CN 105503269 A CN105503269 A CN 105503269A CN 201510938673 A CN201510938673 A CN 201510938673A CN 105503269 A CN105503269 A CN 105503269A
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- 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
- C04B41/5025—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 ceramic materials
- C04B41/5042—Zirconium oxides or zirconates; Hafnium oxides or hafnates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/1305—Organic additives
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/131—Inorganic additives
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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
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
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- C—CHEMISTRY; METALLURGY
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
- C04B2235/3873—Silicon nitrides, e.g. silicon carbonitride, silicon oxynitride
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
- C04B2235/483—Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
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Abstract
The invention provides a preparing method for a bonding material used for a particulate trap. The preparing method includes the following steps that bonding pug is formed by weighing and mixing a fireproof material, clay, alkaline-earth metal silicate fibers, zirconium sol, a thickening agent, silicone oil and deionized water; multiple honeycomb type filtering units are taken, the bonding pug is smeared on the outer surfaces of the filtering units, and the filtering units are spliced; the bonding pug is smeared on the peripheral surface of a product to conduct skin grafting, and a finished product is obtained through drying and roasting. The bonding material used for the particulate trap and obtained through the method is suitable for splicing the filtering units and suitable for the outer surface skin and has excellent thermal shock resistance, and inside and outside bonding materials do not crack after a thermal shock test is carried out for 3 times at the temperature of 600 DEG C. The method is simple in preparation technology and suitable for large-scale batch production.
Description
Technical field
The present invention relates to the preparation field of grain catcher, be specifically related to a kind of preparation method of the bonding material for grain catcher.
Background technology
Honeycomb ceramic carrier is widely used in motor vehicle tail-gas purifying field, is the ceramic product of a kind of tool honeycomb structure rindy.The working method of existing ceramic honey comb crust, the mode be by hand smears one deck plastic mud material at ceramic body outer wall, and the high temperature kiln of base substrate drying and more than 1300 DEG C burns till and just can become the finished product afterwards.Existing this complex process, energy consumption is very high, and efficiency is very low.
China Patent Publication No. CN102276288A discloses the preparation method of tool ceramic honey comb rindy, and the method does not need the ceramic honey comb after to skin-grafting to fire can to obtain having water insoluble, and softening temperature is high, the finished product of Heat stability is good.But the thermal shock resistance of ceramic honey comb crust is poor in the method, only have 500 DEG C, under severe motor vehicle environment for use, there is the risk of crust cracking.
China Patent Publication No. CN103044031B discloses the preparation method of the high ceramic honey comb of crust firmness, and the method does not need the ceramic honey comb after to skin-grafting to fire can obtain having high strength, the finished product of Heat stability is good.Though can realize intensity enhancing, 550 DEG C of thermal shockings are not ftractureed, and the thermal shock resistance that meet higher temperature is still a challenge.
China Patent Publication No. CN101456746B discloses a kind of unsetting refractory body being applicable to ceramic product.This unsetting refractory body is mixed by the solvent that cordierite powder, water and alumina sol or silicon sol solution are formed to form.Though have the advantage of low expansion, high strength, resistance to crack expansibility, more than 550 DEG C high temperature thermal shock resistances whether can be met and undeclared.
Summary of the invention
The object of the invention is the deficiency existed for prior art, a kind of preparation method of the bonding material for grain catcher is provided, makes finished product have more excellent thermal shock resistance.
For achieving the above object, the technical solution used in the present invention is as follows.
For a preparation method for the bonding material of grain catcher, it is characterized in that comprising the following steps:
(1) according to mass percent, the alkaline earth silicate fibres mixing of the fire resistant infilling of 60-80%, the clay of 10-20% and 10-20% is got;
(2) according to mass percent, the deionized water adding the zirconium colloidal sol of mixture quality 20-50%, the thickening material of 0.4-1.0%, the silicone oil of 0.1-1.0% and 10-20% in step (1) mixture mixes into bonding pug;
(3) get multiple honeycomb-type filtering unit, the above-mentioned bonding pug mixed is coated on filtering element outside surface, and these filtering units are spliced into shape of product;
(4) peripheral surface bonding pug that step (2) has been mixed being coated on the said products is made skin graft, then dry, roasting.
Wherein, in step (4) during skin-grafting operation, be also included in pug when not yet solidifying still soft, carry out scraping dressing operation.
Fire resistant infilling comprises at least one in silicon carbide, silico-carbo SiClx, silicon nitride, trichroite, mullite, aluminium titanates or its composition, and median is 5-100 μm.
Clay comprises at least one in attapulgite, ball clay, wilkinite, hectorite, kaolin, kyanite, montmorillonite, polygorskite, saponite, sepiolite, sillimanite or its composition, and median is 5-20 μm.
Alkaline earth silicate fibres comprises at least one in fibrous magnesium silicate, ca silicate fibre or its composition, and median is 5-20 μm.
The median of zirconium colloidal sol is 10-30nm, ZrO
2content is 30-50%.
Thickening material comprises at least one in polyacrylamide, sodium polyacrylate, polyvinyl alcohol, polyoxyethylene, polyoxyethylene glycol, methylcellulose gum, carboxymethyl cellulose, Vltra tears or its composition.
Silicone oil comprises at least one in amido silicon oil, hydroxy silicon oil, methyl-silicone oil, vinyl silicone oil or its composition.
The drying conditions of step (4) is: drying temperature 50-120 DEG C, time of drying 1-5h; Roasting condition is: stoving temperature 500-1000 DEG C, cures time 2-5h.
The present invention is owing to being applied to the bonding of grain catcher unit and peripheral skin-grafting by alkaline earth silicate fibres, zirconium colloidal sol and organic silicone oil, the ceramic honey comb grain catcher obtained is made to have excellent thermal shock resistance, its inside and outside bonding material is the cold and hot sudden turn of events 3 flawlesses at 600 DEG C, make it in severe environment for use, have higher thermostability.
Embodiment
In order to clearer explanation the present invention, enumerate following examples, but its to scope of the present invention without any restriction.
In the method, spliced ceramic honey comb product is the grain catcher of Φ 305*305mm.
Embodiment
Composition is as shown in Table 1 formed, and takes fire resistant infilling, clay, alkaline earth silicate fibres, zirconium colloidal sol, thickening material, silicone oil and deionized water and mixes into bonding pug; Get multiple honeycomb-type filtering unit, bonding pug is coated on filtering element outside surface and carry out splicing, dry; Made skin graft by the peripheral surface that bonding pug is coated on product, then dry, roasting obtains finished product.The test result of the ceramic honey comb product obtained displayed in Table 1 600 DEG C of heat-shock resistance tests.
The thermal shock resistance test-results of the grain catcher that table 1 the inventive method obtains
As can be seen from Table 1, the bonding material for grain catcher of the present invention has excellent thermal shock resistance, meets the requirement of product.The preparation technology of present method is simple, substantially increases production efficiency, is suitable for large-scale mass production.
Above preferred embodiment of the present invention is described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, the equipment wherein do not described in detail to the greatest extent and structure are construed as to be implemented with the usual manner in this area; Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or being revised as the Equivalent embodiments of equivalent variations, this does not affect flesh and blood of the present invention.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (9)
1., for a preparation method for the bonding material of grain catcher, it is characterized in that comprising the following steps:
(1) according to mass percent, the alkaline earth silicate fibres mixing of the fire resistant infilling of 60-80%, the clay of 10-20% and 10-20% is got;
(2) according to mass percent, the deionized water adding the zirconium colloidal sol of mixture quality 20-50%, the thickening material of 0.4-1.0%, the silicone oil of 0.1-1.0% and 10-20% in step (1) mixture mixes into bonding pug;
(3) get multiple honeycomb-type filtering unit, the above-mentioned bonding pug mixed is coated on filtering element outside surface, and these filtering units are spliced into shape of product;
(4) peripheral surface bonding pug that step (2) has been mixed being coated on the said products is made skin graft, then dry, roasting.
2. the preparation method of a kind of bonding material for grain catcher according to claim 1, is characterized in that: in described step (4) during skin-grafting operation, is also included in pug when not yet solidifying still soft, carries out scraping dressing operation.
3. the preparation method of a kind of bonding material for grain catcher according to claim 1, it is characterized in that: described fire resistant infilling comprises at least one in silicon carbide, silico-carbo SiClx, silicon nitride, trichroite, mullite, aluminium titanates or its composition, median is 5-100 μm.
4. the preparation method of a kind of bonding material for grain catcher according to claim 1, it is characterized in that: described clay comprises at least one in attapulgite, ball clay, wilkinite, hectorite, kaolin, kyanite, montmorillonite, polygorskite, saponite, sepiolite, sillimanite or its composition, median is 5-20 μm.
5. the preparation method of a kind of bonding material for grain catcher according to claim 1, it is characterized in that: described alkaline earth silicate fibres comprises at least one in fibrous magnesium silicate, ca silicate fibre or its composition, median is 5-20 μm.
6. the preparation method of a kind of bonding material for grain catcher according to claim 1, is characterized in that: the median of described zirconium colloidal sol is 10-30nm, ZrO
2content is 30-50%.
7. the preparation method of a kind of bonding material for grain catcher according to claim 1, is characterized in that: described thickening material comprises at least one in polyacrylamide, sodium polyacrylate, polyvinyl alcohol, polyoxyethylene, polyoxyethylene glycol, methylcellulose gum, carboxymethyl cellulose, Vltra tears or its composition.
8. the preparation method of a kind of bonding material for grain catcher according to claim 1, is characterized in that: described silicone oil comprises at least one in amido silicon oil, hydroxy silicon oil, methyl-silicone oil, vinyl silicone oil or its composition.
9. the preparation method of a kind of bonding material for grain catcher according to claim 1, is characterized in that: the drying conditions of described step (4) is: drying temperature 50-120 DEG C, time of drying 1-5h; Roasting condition is: stoving temperature 500-1000 DEG C, cures time 2-5h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510938673.6A CN105503269A (en) | 2015-12-15 | 2015-12-15 | Preparing method for bonding material used for particulate trap |
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| CN201510938673.6A CN105503269A (en) | 2015-12-15 | 2015-12-15 | Preparing method for bonding material used for particulate trap |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906367A (en) * | 2016-04-27 | 2016-08-31 | 云南菲尔特环保科技股份有限公司 | Non-fired high-hardness cordierite honeycomb ceramic skin and production method thereof |
| WO2022160075A1 (en) * | 2021-01-30 | 2022-08-04 | 广东顺祥陶瓷有限公司 | Bonding process for handle and body of medium-high temperature ceramic |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011903A (en) * | 2013-01-18 | 2013-04-03 | 江苏蓝烽新材料科技有限公司 | Skin-grafting method used for honeycomb ceramics |
| CN103044031A (en) * | 2013-01-18 | 2013-04-17 | 江苏蓝烽新材料科技有限公司 | Preparation method of honeycomb ceramic high in skin firmness |
| CN104671741A (en) * | 2015-01-14 | 2015-06-03 | 江苏蓝烽新材料科技有限公司 | Preparation method of large-size honeycomb ceramic carrier for diesel engine |
-
2015
- 2015-12-15 CN CN201510938673.6A patent/CN105503269A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011903A (en) * | 2013-01-18 | 2013-04-03 | 江苏蓝烽新材料科技有限公司 | Skin-grafting method used for honeycomb ceramics |
| CN103044031A (en) * | 2013-01-18 | 2013-04-17 | 江苏蓝烽新材料科技有限公司 | Preparation method of honeycomb ceramic high in skin firmness |
| CN104671741A (en) * | 2015-01-14 | 2015-06-03 | 江苏蓝烽新材料科技有限公司 | Preparation method of large-size honeycomb ceramic carrier for diesel engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906367A (en) * | 2016-04-27 | 2016-08-31 | 云南菲尔特环保科技股份有限公司 | Non-fired high-hardness cordierite honeycomb ceramic skin and production method thereof |
| WO2022160075A1 (en) * | 2021-01-30 | 2022-08-04 | 广东顺祥陶瓷有限公司 | Bonding process for handle and body of medium-high temperature ceramic |
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Application publication date: 20160420 |