CN105503233B - A kind of big-size thinning plastic cordierite honeycomb ceramic carrier pug and preparation method thereof - Google Patents
A kind of big-size thinning plastic cordierite honeycomb ceramic carrier pug and preparation method thereof Download PDFInfo
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- CN105503233B CN105503233B CN201510926162.2A CN201510926162A CN105503233B CN 105503233 B CN105503233 B CN 105503233B CN 201510926162 A CN201510926162 A CN 201510926162A CN 105503233 B CN105503233 B CN 105503233B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 29
- 229910052878 cordierite Inorganic materials 0.000 title claims abstract description 24
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000004033 plastic Substances 0.000 title claims abstract description 11
- 229920003023 plastic Polymers 0.000 title claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000454 talc Substances 0.000 claims abstract description 9
- 229910052623 talc Inorganic materials 0.000 claims abstract description 9
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims description 15
- 235000010469 Glycine max Nutrition 0.000 claims description 6
- 244000068988 Glycine max Species 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229920000609 methyl cellulose Polymers 0.000 claims description 6
- 239000001923 methylcellulose Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 239000011812 mixed powder Substances 0.000 claims description 4
- 238000006053 organic reaction Methods 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 2
- -1 methoxyl group Chemical group 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 125000003700 epoxy group Chemical group 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 9
- 238000005336 cracking Methods 0.000 abstract description 8
- 238000005245 sintering Methods 0.000 abstract description 6
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 5
- 239000011147 inorganic material Substances 0.000 abstract description 5
- 238000010304 firing Methods 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract description 2
- 102220043159 rs587780996 Human genes 0.000 description 16
- 238000000034 method Methods 0.000 description 11
- 239000000843 powder Substances 0.000 description 11
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 210000003205 muscle Anatomy 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000005995 Aluminium silicate Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 235000012211 aluminium silicate Nutrition 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241001408630 Chloroclystis Species 0.000 description 2
- 238000010504 bond cleavage reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000010954 inorganic particle Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
- C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
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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
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/322—Transition aluminas, e.g. delta or gamma aluminas
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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
- C04B2235/34—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
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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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
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Abstract
The invention discloses a kind of big-size thinning plastic cordierite honeycomb ceramic carrier pug, including inorganic raw material, organic binder, water and silane coupling agent, inorganic raw material is made of foliated talc, sheet water-washed kaoline, tabular alumina, electroquartz.It carries out surface with inorganic raw material to foliated talc, sheet water-washed kaoline, tabular alumina, electroquartz etc. in pug preparation process using silane coupling agent to be modified, silane coupling agent forms substituent group-OSi (CH on raw material surface3)2, make inorganic material that there is hydrophobicity.With the big specification cordierite honeycomb ceramic carrier pug of the modified inorganic raw material preparation in surface, aquation film thickness is small, dry contraction is small, can effectively reduce thermal expansion coefficient；The preferable mobility of pug, keeps briquetting pressure low, can effectively reduce the degree of wear of molding equipment and mold, meanwhile, surface substituent group-OSi (CH3)2, blank strength can be improved in carrier inside formation-O-Si-O-Si- three-dimensional network, reduce firing cracking, higher sintering qualified rate can be obtained.
Description
Technical field
The present invention relates to a kind of big-size thinning plastic cordierite honeycomb ceramic carrier pugs and preparation method thereof.
Background technique
The big specification CORDIERITE HONEYCOMB CERAMIC CARRIER of diameter >=10.5in. is after medium-and-large-sized internal combustion engine gaseous contamination discharges
The catalyst carrier of processing technique, such as: diesel engine selective catalytic reduction SCR carrier, clean fuel internal combustion engine three-effect catalysis turn
Change device TWC carrier, oxidation catalytic converter DOC carrier and the escaping of ammonia converter ASC carrier etc..State V, VI emission regulation are to machine
The quick severization of the lower emission limit of motor vehicle exhaust pollutant and motor vehicle economy regulation, it is desirable that honeycomb must be made pottery
Ceramic carrier wall thickness is reduced to 5mil hereinafter, to obtain bigger catalyst-coated surface product and lower flow resistance.
The production technology of carrier for ceramic honeycomb catalyst includes: that powder composition and preparation, additive technology, pug are mixed
Sweetening process, extrusion equipment and technique, drying process and firing process etc., each process procedure will affect product quality, shape
At multifactor, multilevel orthogonal test research process.The big specification honeycomb ceramic carrier preparation process of traditional wall thickness >=7mil
Larger with high-performance thin wall honeycomb ceramic carrier manufacturing process gap, wherein pug preparation is to influence honeycomb ceramic carrier into moral character
It can be with the fundamental technology link of molding die service life.
The cordierite honeycomb ceramic carrier manufacture of extrusion molding mostly uses common inorganic raw material, and pug preparation only considers raw material
Chemical component, granularity, crystal morphology feature, production wall thickness >=7mil conventional wall thickness big specification honeycomb ceramic carrier can expire
Sufficient performance indicator requirement.In pug preparation process, the crushing of inorganic raw material makes raw material surface form a large amount of scission of links, and powder granule is easy
To reunite, crystal form when influencing the uniformity of powder preparation, directly destruction cordierite synthesis is regularly arranged, meanwhile, scission of link adsorbed
More water ions form the biggish hydration shell of thickness (see Fig. 1), the microcosmic lubricity between powder particles are not only made to be deteriorated, and increase
Moulding process extruder pressure, reduces the service life of molding equipment and mold, and higher pure water additional amount also makes dry receipts
Shrinkage increases, and the problems such as deformation of grid duct, season cracking occurs.Based on this, the invention proposes a kind of manufacture high-performance is big
The pug preparation method of gauge thin wall cordierite honeycomb ceramic carrier.
Summary of the invention
For conventional preparation techniques production big-size thinning plastic cordierite honeycomb ceramic carrier pug, that there are amount of water is big, dry
It is difficult, dry to shrink big, easy season cracking and pug poor fluidity, the problems such as resistance is big, and equipment die is easily damaged is squeezed out,
The present invention provides a kind of big-size thinning plastic cordierite honeycomb ceramic carrier pug, including inorganic raw material, organic binder, water
And silane coupling agent, inorganic raw material are made of foliated talc, sheet water-washed kaoline, tabular alumina, electroquartz.
It include as follows the present invention also provides a kind of preparation method of big-size thinning plastic cordierite honeycomb ceramic carrier pug
Step:
Prepare the mixed-powder of inorganic raw material and silane coupling agent；Organic binder and water are added into mixed-powder；It pinches
It closes, mud refining.
The present invention also provides a kind of preparation methods of big-size thinning plastic cordierite carrier for ceramic honeycomb catalyst, including will be upper
The pug that the method for stating is prepared is extruded into green compact, fires, and heat preservation obtains catalyst carrier.
As optimal technical scheme, the general formula of silane coupling agent are as follows: Y-R-Si-X3, in which: R is selected from alkyl or aryl；X
Selected from methoxyl group, ethyoxyl or chlorine atom, Y is organic reaction base.Further preferably, organic reaction base is selected from vinyl, epoxy
Base, amino or sulfydryl etc..Alkyl includes but is not limited to C1-C5Alkyl, for example, methyl, ethyl, n-propyl, isopropyl, positive fourth
Base, isobutyl group etc..Aryl includes but is not limited to C1-C18Aryl.
As optimal technical scheme, organic additive includes methylcellulose, organic silicon polyether copolymer and soya-bean oil.
As optimal technical scheme, organic binder additional amount is the 2-10% of inorganic raw material total weight；
As optimal technical scheme, silane coupling agent additional amount is the 0.01-10% of inorganic raw material total weight；It is further excellent
Choosing, silane coupling agent is the 0.05-8% of inorganic raw material total weight；It is further preferred that silane coupling agent accounts for inorganic raw material total weight
0.1-1%；
As optimal technical scheme, the pressure that extrudes of pug is 9-14MPa.
Big-size thinning plastic cordierite honeycomb ceramic carrier of the invention refers to diameter>=10.5in, wall thickness wall thickness<7mil
Ceramic monolith.
The invention has the benefit that
Using silane coupling agent to foliated talc, sheet water-washed kaoline, tabular alumina, electricity in pug preparation process
Fused quartz etc. carries out surface with inorganic raw material and is modified, and silane coupling agent forms substituent group-OSi (CH on raw material surface3)2, make nothing
Machine material has hydrophobicity.With the big specification cordierite honeycomb ceramic carrier pug of the modified inorganic raw material preparation in surface, water
Change film thickness is small, dry contraction is small, can effectively reduce thermal expansion coefficient；The preferable mobility of pug, keeps briquetting pressure low, can have
Effect reduces the degree of wear of molding equipment and mold, meanwhile, surface substituent group-OSi (CH3)2, can be in carrier inside formation-O-
Si-O-Si- three-dimensional network improves blank strength, reduces firing cracking, higher sintering qualified rate (95-99%) can be obtained.
Detailed description of the invention
Fig. 1: silane coupler modified inorganic particle schematic diagram
Fig. 2: the cordierite carrier for ceramic honeycomb catalyst of embodiment 4 aligns microgram
Specific embodiment
Embodiment 1:
(1) inorganic material powder constitute: D50=15 μm of foliated talc 40.0%, D50=6 μm of life kaolin 29.8%,
D50=20 μm of tabular alumina 21.2%, D50=4.0 μm of electroquartz 9.0%.Inorganic particle through it is agravic it is dry-mixed after,
4% methylcellulose, 0.5% machine silicon copolyether, 1% soya-bean oil and 35% water are added, kneading and vacuum are carried out
Pug is extruded into 300 holes/in2 of 13 × 6in. of Φ, the thin-walled bee of wall thickness 5mil with the pressure of 19.0MPa by pugging, molding machine
Nest ceramic catalyst carrier green compact, are tested after drying, green compact shrinking percentage: 3.5%, axial compression strength: 0.52MPa, curved muscle
With thick muscle ratio of defects: 4.5%.
(2) it is fired through 1415 DEG C, keeps the temperature 8 hours, obtain cordierite catalyst carrier, sintering qualified rate 90.1%.Product
Performance: 1.0 × 10-6/ DEG C of thermal expansion coefficient (- 800 DEG C of room temperature), water absorption rate 33%, axial compression strength 16.7MPa, 650 DEG C
Thermal shock test is without cracking three times.
Embodiment 2:
(1) inorganic material powder is constituted: D50=15 μm of foliated talc 40.0%, D50=6 μm of life kaolin
29.8%, D50=20 μm of tabular alumina 21.2%, D50=4.0 μm of electroquartz 9.0%.Additional 0.2% KH550
Silane coupling agent progress synchronous with powder is agravic dry-mixed, to powder-modified.
(2) 5% methylcellulose, 0.5% machine silicon copolyether, 1% soya-bean oil and 25% water are added, is carried out
It mediates and vacuum pugging, molding machine is extruded into pug with the pressure of 13.8MPa 300 holes/in2, the wall thickness of 13 × 6in. of Φ
The thin wall honeycomb ceramic catalyst support greenware of 5mil, is tested after drying, dry to shrink: 3.1%, axial compression strength:
1.10MPa, curved muscle, thick muscle ratio of defects: 3.0%.
(3) it is fired through 1415 DEG C, keeps the temperature 8 hours, obtain cordierite catalyst carrier, sintering qualified rate 95.5%, product
Performance: 0.92 × 10-6/ DEG C of thermal expansion coefficient (- 800 DEG C of room temperature), water absorption rate 31.2%, axial compression strength 17.5MPa, 650
Thermal shock test is without cracking DEG C three times.
Embodiment 3:
(1) inorganic material powder is constituted: D50=15 μm of foliated talc 40.0%, D50=6 μm of life kaolin
29.8%, D50=20 μm of tabular alumina 21.2%, D50=4.0 μm of electroquartz 9.0%.Additional 0.4% KH550
Silane coupling agent progress synchronous with powder is agravic dry-mixed, to powder-modified.
(2) 5% methylcellulose, 0.5% machine silicon copolyether, 1% soya-bean oil and 25% water are added, is carried out
It mediates and vacuum pugging, molding machine is extruded into pug with the pressure of 11.9MPa 300 holes/in2, the wall thickness of 13 × 6in. of Φ
The thin wall honeycomb ceramic catalyst support greenware of 5mil, is tested after drying, dry to shrink: 2.9%, axial compression strength:
1.32MPa, curved muscle, thick muscle ratio of defects: 2.2%.
(3) it is fired through 1415 DEG C, keeps the temperature 8 hours, obtain cordierite catalyst carrier, sintering qualified rate 97.2%, product
Performance: 0.86 × 10-6/ DEG C of thermal expansion coefficient (- 800 DEG C of room temperature), water absorption rate 30.2%, axial compression strength 18.3MPa, 650
Thermal shock test is without cracking DEG C three times.
Embodiment 4:
(1) inorganic material powder is constituted: D50=15 μm of foliated talc 40.0%, D50=6 μm of life kaolin
29.8%, D50=20 μm of tabular alumina 21.2%, D50=4.0 μm of electroquartz 9.0%.Additional 0.8% KH550
Silane coupling agent progress synchronous with powder is agravic dry-mixed, to powder-modified.
(2) 5% methylcellulose, 0.5% machine silicon copolyether, 1% soya-bean oil and 25% water are added, is carried out
It mediates and vacuum pugging, molding machine is extruded into pug with the pressure of 9.1MPa 300 holes/in2, the wall thickness of 13 × 6in. of Φ
The thin wall honeycomb ceramic catalyst support greenware of 5mil, is tested after drying, dry to shrink: 2.5%, axial compression strength:
1.83MPa, curved muscle, thick muscle ratio of defects: 0.5%.
(3) it is fired through 1415 DEG C, keeps the temperature 8 hours, obtain cordierite catalyst carrier, sintering qualified rate 99.0%, institute
The performance of the cordierite honeycomb ceramic carrier obtained are as follows: 0.75 × 10-6/ DEG C of thermal expansion coefficient (- 800 DEG C of room temperature), water absorption rate
28.5%, axial compression strength 20.5MPa, 650 DEG C three times thermal shock test without cracking.
The different pugs of table 1 prepare cordierite carrier and compare
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (2)
1. a kind of big-size thinning plastic cordierite honeycomb ceramic carrier pug, which is characterized in that the pug includes inorganic raw material,
Organic binder, water and silane coupling agent；The inorganic raw material is by foliated talc, sheet water-washed kaoline, tabular alumina
It is constituted with electroquartz；
The general formula of the silane coupling agent are as follows: Y-R-Si-X3, in which: R is selected from alkyl or aryl；X is selected from methoxyl group, ethyoxyl
Or chlorine atom, Y are organic reaction base；The organic reaction base is selected from vinyl, epoxy group, amino or sulfydryl；
The organic binder includes methylcellulose, organic silicon polyether copolymer and soya-bean oil；
The organic binder additional amount is the 2-10% of inorganic raw material total weight；
The silane coupling agent additional amount is the 0.01-10% of inorganic raw material total weight.
2. the preparation method of big-size thinning plastic cordierite honeycomb ceramic carrier pug as described in claim 1, which is characterized in that
Include the following steps: the mixed-powder for preparing inorganic raw material and silane coupling agent；Into mixed-powder be added organic binder and
Water；It mediates, mud refining；
The pug being prepared is extruded into green compact, is fired, heat preservation obtains catalyst carrier；
The pressure that extrudes of the pug is 9-14MPa.
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| CN106045451A (en) * | 2016-06-03 | 2016-10-26 | 昆明理工大学 | Sintered-free cordierite honeycomb-ceramic hole plugging material |
| CN110937916B (en) * | 2019-12-09 | 2022-03-11 | 江苏省宜兴非金属化工机械厂有限公司 | Ceramic carrier with honeycomb structure and preparation method thereof |
| CN112010661B (en) * | 2020-09-03 | 2022-06-03 | 广州粤瓷新材料有限公司 | Sagger for lithium battery positive electrode material and preparation method thereof |
| CN116063093B (en) * | 2023-01-05 | 2023-12-26 | 武汉理工大学 | DPF honeycomb ceramic based on flaked kaolin and preparation method thereof |
| CN117142874A (en) * | 2023-11-01 | 2023-12-01 | 山东奥福环保科技股份有限公司 | Thin-wall silicon carbide honeycomb ceramic carrier and preparation method and application thereof |
| CN118005419B (en) * | 2024-01-30 | 2025-07-25 | 山东奥福环保科技股份有限公司 | Low-cost high-performance honeycomb ceramic and preparation method and application thereof |
| CN118993759B (en) * | 2024-10-24 | 2024-12-27 | 山东奥福环保科技股份有限公司 | Ultrahigh pore density alumina honeycomb ceramic carrier and preparation method thereof |
| CN119735427A (en) * | 2025-03-04 | 2025-04-01 | 山东奥福环保科技股份有限公司 | A thin-wall porous ceramic material and preparation method thereof |
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