CN105771681A - Porous ceramic layer on porous support surface and preparation method thereof - Google Patents
Porous ceramic layer on porous support surface and preparation method thereof Download PDFInfo
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- CN105771681A CN105771681A CN201410818286.4A CN201410818286A CN105771681A CN 105771681 A CN105771681 A CN 105771681A CN 201410818286 A CN201410818286 A CN 201410818286A CN 105771681 A CN105771681 A CN 105771681A
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Abstract
The invention discloses a porous ceramic layer on the porous support surface and a preparation method thereof. The porous ceramic layer is composed of a silica coated ceramic powder with a core-shell structure. The preparation method comprises the following steps: (1) mixing the ceramic powder and silica sol in proportion and uniformly dispersing the ceramic powder into silica sol through ball milling; and (2) uniformly applying the mixed solution of the ceramic powder and silica soil onto the surface of a porous support, and carrying out high-temperature heat treatment to obtain a porous ceramic layer of the silica coated ceramic powder on the surface of the porous support. The silica sol is used as a binder of the ceramic powder, thus raising bonding strength of the porous ceramic layer.
Description
Technical field
The present invention relates to a kind of porous carrier porous surface ceramic layer and preparation method thereof, belong to Preparation of inorganic membrane and applied technical field.
Background technology
Membrane separation technique has a wide range of applications demand in chemical industry, electronics, light industry, weaving, metallurgy, food, field of petrochemical industry, and membrane material is the critical material of membrane separation technique.In various membrane materials, porous ceramics rete has the remarkable advantages such as corrosion-resistant, high temperature resistant, pore-size distribution is narrow, mechanical strength is big, is with a wide range of applications at solid-liquid, gas-solid, gas separation fields such as coalification, petrochemical industry, food, environmental protection.
At present, the preparation method of porous ceramic layer is mainly ceramic powder sintering process, the method by obtaining the porous ceramic layer of a floor height bond strength to the high temperature sintering of micron and submicron ceramic powder on porous carrier surface, its technical maturity, but the heat treatment temperature of ceramic powder sintering process is higher, it is generally 1400 DEG C-1600 DEG C, the high temperature tolerance performance of porous matrix material is proposed significantly high requirement.In general, the porous support materials of porous ceramics has glass, metal and pottery.Wherein, pottery has the resistance to elevated temperatures of excellence, it is possible to adopt the ceramic powder sintering process porous ceramic layer that additional layer average pore size is less thereon.But, cellular glass at high temperature can sinter, and causes that porosity reduces, and porous metals under high heat treatment temperature except sintering shrinkage cavity, the problem that there is also oxidation, it is difficult to obtained the porous ceramic layer of high bond strength from the teeth outwards by the method for high temperature sintering.Adopt the low-temperature synthetic methods such as air plasma spraying can prepare porous ceramic layer on porous metals surface, but ceramic interlayer surface roughness is excessive, the porosity of ceramic layer is low, pore-size distribution is excessive, it is unfavorable for the application [YHuang of porous ceramic film, RDittmeyer.J.MembraneSci., 2006].
Summary of the invention
Based on this, it is an object of the invention to provide a kind of porous carrier porous surface ceramic layer, the bond strength of this porous ceramic layer is high.
Another object of the present invention is to the preparation method that a kind of described porous carrier porous surface ceramic layer is provided.
For achieving the above object, the present invention is by the following technical solutions:
A kind of porous carrier porous surface ceramic layer, this porous ceramic layer is made up of the coated with silica ceramic powder of nucleocapsid structure.
Wherein, described porous carrier is cellular glass, porous ceramics or porous metals.Described ceramic powder is Al2O3、ZrO2、YSZ、CeO2、Y2O3、TiO2In one or more mixing, the mean diameter D50 of powder body is 50nm-50 μm.
The preparation method of a kind of described porous carrier porous surface ceramic layer, it is characterised in that comprise the following steps:
(1) ceramic powder and Ludox are mixed in proportion, by ball milling, ceramic powder are dispersed in Ludox；
(2) mixed solution of gained ceramic powder Yu Ludox is uniformly applied to porous carrier surface, then passes through high-temperature heat treatment and obtain the porous ceramic layer of coated with silica ceramic powder on porous carrier surface.
In described step (1), ceramic powder is 10-50wt% with Ludox content in the mixed solution of Ludox.
In described step (2), the method adopting spin coating, Best-Effort request, curtain coating or silk screen printing, mixed solution is coated uniformly on porous carrier.
In described step (2), high-temperature heat treatment temperature range is 300-700 DEG C.
It is an advantage of the current invention that:
The present invention adopts Ludox as the binding agent of ceramic powder, is conducive to improving the bond strength of porous ceramic layer.
Accompanying drawing explanation
Fig. 1 is the structural representation of porous carrier porous surface ceramic layer of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described, but embodiments of the present invention are not limited to this.
As it is shown in figure 1, the porous ceramic layer of the present invention puts on porous carrier 1 surface, this porous ceramic layer is made up of the silicon dioxide 3 coating ceramic powder body 2 of nucleocapsid structure.
Embodiment 1: porous alumina layer on porous stainless steel disc
Adopt porous 316 stainless steel substrates as porous carrier, its average pore size 5 μm.Concretely comprise the following steps:
(1) by Al2O3Powder body mixes with Ludox, Al2O3Powder body 20g, mean diameter 5 μm, Ludox 5g, its dioxide-containing silica is 25wt%；
(2) by mixed Al2O3Powder body and silicon sol solution are placed in planetary ball mill, ball milling 30min, rotating speed 600 revs/min, are uniformly mixed Al2O3Powder body and silicon sol solution；
(3) adopt spin coating method by solution uniform deposition on porous 316 stainless steel substrates, rotating speed 3000 revs/min, 20 seconds time；Porous alumina layer is heat treatment 2h in 650 DEG C of argon gas atmosphere, obtained Woelm Alumina layer thickness about 20 μm, and its micro-cut critical load is 16N.
Embodiment 2: nickel chromium triangle aluminum high temperature alloy antipriming pipe porous oxidation zirconium layer
Adopt nickel chromium triangle aluminum high temperature alloy antipriming pipe as porous carrier, antipriming pipe external diameter 6mm, length 100mm, wall thickness 1mm, average pore size 2.5 μm.
(1) by ZrO2Powder body mixes with Ludox, ZrO2Powder body 30g, mean diameter 3 μm, Ludox 5g, its dioxide-containing silica is 25wt%；
(2) by mixed ZrO2Powder body and silicon sol solution are placed in planetary ball mill, ball milling 30min, rotating speed 600 revs/min, obtain uniform ZrO2Powder body and silicon sol solution；
(3) adopt Best-Effort request method by solution uniform deposition on nickel chromium triangle aluminum high temperature alloy antipriming pipe；Porous oxidation zirconium layer is heat treatment 5h in 600 DEG C of argon gas atmosphere, obtained porous zirconia layer thickness about 20 μm, and its micro-cut critical load is 18N.
Embodiment 3: porous alumina ceramic pipe porous alumina layer
Adopting porous alumina ceramic pipe as porous carrier, earthenware external diameter 8mm, length 120mm, wall thickness 2mm, maximum diameter of hole, surface is about 200nm.
(1) by Al2O3Powder body mixes with Ludox, Al2O3Powder body 20g, mean diameter 0.2 μm, Ludox 5g, its dioxide-containing silica is 30wt%；
(2) by mixed Al2O3Powder body and silicon sol solution are placed in planetary ball mill, ball milling 30min, rotating speed 600 revs/min, obtain uniform Al2O3Powder body and silicon sol solution；
(3) adopt Best-Effort request method by solution uniform deposition on porous alumina ceramic pipe；Porous alumina layer is heat treatment 5h in 600 DEG C of nitrogen atmospheres, obtained Woelm Alumina layer thickness about 5 μm, and its micro-cut critical load is 26N.
Claims (7)
1. a porous carrier porous surface ceramic layer, it is characterised in that this porous ceramic layer is made up of the coated with silica ceramic powder of nucleocapsid structure.
2. porous carrier porous surface ceramic layer according to claim 1, it is characterised in that described porous carrier is cellular glass, porous ceramics or porous metals.
3. porous carrier porous surface ceramic layer according to claim 1, it is characterised in that described ceramic powder is Al2O3、ZrO2、YSZ、CeO2、Y2O3、TiO2In one or more mixing, the mean diameter D50 of powder body is 50nm-50 μm.
4. the preparation method of porous carrier porous surface ceramic layer described in a claim 1, it is characterised in that comprise the following steps:
(1) ceramic powder and Ludox are mixed in proportion, by ball milling, ceramic powder are dispersed in Ludox；
(2) mixed solution of gained ceramic powder Yu Ludox is uniformly applied to porous carrier surface, then passes through high-temperature heat treatment and obtain the porous ceramic layer of coated with silica ceramic powder on porous carrier surface.
5. preparation method according to claim 4, it is characterised in that in described step (1), ceramic powder is 10-50wt% with Ludox content in the mixed solution of Ludox.
6. preparation method according to claim 4, it is characterised in that in described step (2), the method adopting spin coating, Best-Effort request, curtain coating or silk screen printing, mixed solution is coated uniformly on porous carrier.
7. preparation method according to claim 4, it is characterised in that in described step (2), high-temperature heat treatment temperature range is 300-700 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410818286.4A CN105771681A (en) | 2014-12-24 | 2014-12-24 | Porous ceramic layer on porous support surface and preparation method thereof |
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| CN201410818286.4A CN105771681A (en) | 2014-12-24 | 2014-12-24 | Porous ceramic layer on porous support surface and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902645A (en) * | 2017-02-15 | 2017-06-30 | 山东工业陶瓷研究设计院有限公司 | A kind of preparation method of the super hydrophilic ceramic membrane with photocatalysis performance |
| CN110860213A (en) * | 2018-08-28 | 2020-03-06 | 美国分子工程股份有限公司 | Thin metal/ceramic hybrid membrane and filter |
| CN115849906A (en) * | 2022-12-28 | 2023-03-28 | 常州市卓群纳米新材料有限公司 | Preparation method of spherical yttrium-based composite ceramic for thermal spraying |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168873A (en) * | 1997-06-20 | 1997-12-31 | 清华大学 | Method for preparing ceramic thin sheet contg. alumina, silicon oxide and titanium oxide |
| CN102515851A (en) * | 2011-12-26 | 2012-06-27 | 天津大学 | Preparation method for silicon-nitride-based coating on surface of porous ceramic |
| CN102700190A (en) * | 2012-06-12 | 2012-10-03 | 北京理工大学 | Metal ceramic composite material and preparation method thereof |
| CN104162392A (en) * | 2013-05-20 | 2014-11-26 | 孙红梅 | Core-shell porous ball, manufacturing method ad applications thereof |
-
2014
- 2014-12-24 CN CN201410818286.4A patent/CN105771681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168873A (en) * | 1997-06-20 | 1997-12-31 | 清华大学 | Method for preparing ceramic thin sheet contg. alumina, silicon oxide and titanium oxide |
| CN102515851A (en) * | 2011-12-26 | 2012-06-27 | 天津大学 | Preparation method for silicon-nitride-based coating on surface of porous ceramic |
| CN102700190A (en) * | 2012-06-12 | 2012-10-03 | 北京理工大学 | Metal ceramic composite material and preparation method thereof |
| CN104162392A (en) * | 2013-05-20 | 2014-11-26 | 孙红梅 | Core-shell porous ball, manufacturing method ad applications thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902645A (en) * | 2017-02-15 | 2017-06-30 | 山东工业陶瓷研究设计院有限公司 | A kind of preparation method of the super hydrophilic ceramic membrane with photocatalysis performance |
| CN106902645B (en) * | 2017-02-15 | 2019-11-12 | 山东工业陶瓷研究设计院有限公司 | A kind of preparation method of the super hydrophilic ceramic membrane with photocatalysis performance |
| CN110860213A (en) * | 2018-08-28 | 2020-03-06 | 美国分子工程股份有限公司 | Thin metal/ceramic hybrid membrane and filter |
| CN110860213B (en) * | 2018-08-28 | 2022-03-29 | 美国分子工程股份有限公司 | Thin metal/ceramic hybrid membrane and filter |
| CN115849906A (en) * | 2022-12-28 | 2023-03-28 | 常州市卓群纳米新材料有限公司 | Preparation method of spherical yttrium-based composite ceramic for thermal spraying |
| CN115849906B (en) * | 2022-12-28 | 2023-12-26 | 常州市卓群纳米新材料有限公司 | Preparation method of spherical yttrium-based composite ceramic for thermal spraying |
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Application publication date: 20160720 |