CN206828402U - A kind of ceramic membrane materials component - Google Patents
A kind of ceramic membrane materials component Download PDFInfo
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- CN206828402U CN206828402U CN201720584458.5U CN201720584458U CN206828402U CN 206828402 U CN206828402 U CN 206828402U CN 201720584458 U CN201720584458 U CN 201720584458U CN 206828402 U CN206828402 U CN 206828402U
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Abstract
The utility model discloses a kind of ceramic membrane materials component, including ceramic membrane matrix, the intermediate layer for being sequentially located at ceramic membrane matrix surface, ceramic film, the internal layer of the ceramic membrane matrix is pure carbon-coating, the average pore size of internal layer is 300 μm~500 μm, outer layer is the composite bed that C and SiC is formed, and the average pore size of outer layer is 10 μm~20 μm；The hole insertion of the internal layer and outer layer of the ceramic membrane matrix；The intermediate layer is SiC gross porosity film layers, and the average pore size of intermediate layer is 100nm~500nm；The ceramic film is porous pure SiC film layers, and the average pore size of ceramic film is 1nm~2nm.The ceramic membrane materials component has aperture small and is evenly distributed so as to which separation accuracy is high, the advantages that good toughness, intensity height, high temperature resistant, acid and alkali-resistance.
Description
Technical field
It the utility model is related to porous ceramics technical field of membrane, more particularly to a kind of ceramic membrane materials component.
Background technology
Membrane separating process is that the liquid of solute or suspended particulates containing dissolving passes through film, and wherein solvent and solute small molecule is saturating
Film is crossed, solute transportation and suspended particulate are rejected by.Compared with organic film, inorganic ceramic membrane is by metal oxide or mixing
The high technology ceramics material with certain Selective Separation performance that metal-oxide powder forms through high temperature sintering, have chemistry steady
It is qualitative good, the advantages that mechanical strength is big, and anti-microbe ability is strong, and high temperature resistant, pore-size distribution is narrow, and separative efficiency is high, it can be applied to
Gas separation, liquid isolation of purified and membrane reactor, in food industry, pharmacy and bioengineering, chemistry and petrochemical industry
And the field such as environmental protection is widely used.
The domestic research to ceramic membrane starts from the later stage nineties in last century, is concentrated mainly on alumina film material, and in dirt
Carry out application in terms of water process, achieve good benefit.But in terms of industrial wastewater, often there is discharge capacity in its waste water
Greatly, high temperature, high alkalinity, highly acidity, the features such as containing heavy metal, higher requirement is proposed to the strainability of inorganic ceramic membrane,
Now widely used alumina film material, it is difficult to resist strong acid, strong alkali environment, high-temperature thermal stability performance is poor, in above-mentioned harshness
The service life that worked under environmental condition will greatly shorten, and cause cost of sewage disposal to increase.In addition, alumina film material hydrophily
Can be general, cause sewage treating efficiency low, also increase pollution treatment cost to a certain extent.Carborundum chemistry excellent stability,
Resistance to strong acid, alkali, it can be used in the range of pH value 0-14, high-temperature stability is good, and hydrophilicity is good, and its performance characteristics makes carbonization
Silicon ceramic membrane has natural advantage in terms of sewage disposal, is the important directions of inorganic ceramic membrane development from now on.
But current silicon carbide ceramic membrane, which is coarse granule carborundum and binding agent accumulation sintering mostly, to be formed, its hole is
Particle packing gap is formed, and it is uneven pore-size distribution to be present, and aperture is mostly in more than 100nm, to small suspended particulate in water, big
Colloidal particle and bacterium separation it is highly effective, but wretched insufficiency, hole in terms of the separation of small molecule solute, virus etc. be present
Skewness uniform aperture in footpath is excessive to cause filtering accuracy poor, and requiring high in separation accuracy this greatly limits ceramic membrane is permitted
Multi-field application.In addition, membrane module is often subject to machinery caused by the vibration from pump motors in installation and work
And thermal stress, while the impact such as pulsed gas and water or backwash can be also repeatedly subjected in membrane separating process, due to ceramic support
Body is made of to use porous ceramics sill, and the fragility of these ceramic materials is big, is easily broken when by high mechanical stress
With split, this also greatly limit its commercial introduction application.
Utility model content
The technical problems to be solved in the utility model is overcome the deficiencies in the prior art, there is provided a kind of aperture is small and distribution is equal
It is even so as to which separation accuracy is high, good toughness, intensity height, high temperature resistant, the ceramic membrane materials component of acid and alkali-resistance.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of ceramic membrane materials component, including ceramic membrane matrix, be sequentially located at ceramic membrane matrix surface intermediate layer,
Ceramic film, the internal layer of the ceramic membrane matrix are pure carbon-coating, and the average pore size of internal layer is 300 μm~500 μm, outer layer be C and
The composite bed of SiC compositions, the average pore size of outer layer is 10 μm~20 μm；The internal layer of the ceramic membrane matrix and the hole of outer layer pass through
It is logical；The intermediate layer is SiC intermediate layers, and the average pore size of intermediate layer is 100nm~500nm；The ceramics
Film layer is porous pure SiC layer, and the average pore size of ceramic film is 1nm~2nm.
Compared with prior art, the utility model has the advantage of：
1st, ceramic membrane materials component of the present utility model, using pure carborundum as ceramic membrane separation layer, hole is atom
Level the defects of size, structure is less, so that the more existing silicon carbide ceramic membrane of combination property especially separation accuracy of film is more
It is excellent.
2nd, ceramic membrane materials component of the present utility model, ceramic membrane matrix internal layer are pure carbon-coating, and outer layer is that C and SiC is formed
Composite bed, silicon carbide ceramics layer uses in-situ preparation, maintain whole matrix skeleton integrality and it is successional while
It ensure that the connectivity of hole.The unreacted C layers of foamed asphalt core play toughness reinforcing, the work for preventing material fragility from destroying
With, shock resistance greatly improves, and has expanded its industrial applicability significantly, as can be used for all kinds of membrane reactors in or severe machine
Tool application environment is medium.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Label declaration in figure：
1st, tabular ceramic membrane matrix；11st, internal layer；12nd, outer layer；2nd, intermediate layer；3rd, ceramic film.
Embodiment
The utility model is further described below in conjunction with specific preferred embodiment, but does not therefore limit this reality
With new protection domain.
Embodiment 1：
A kind of ceramic membrane materials component, as shown in figure 1, including tabular ceramic membrane matrix 1, being sequentially located at tabular pottery
Intermediate layer 2, the ceramic film 3 on the surface of porcelain film matrix 1, the internal layer 11 of the tabular ceramic membrane matrix 1 are pure carbon-coating, internal layer
11 average pore size is 300 μm, and outer layer 12 is the composite bed that C and SiC is formed, and the average pore size of outer layer 12 is 15 μm；The flat board
The hole insertion of the internal layer 11 and outer layer 12 of shape ceramic membrane matrix 1；Intermediate layer 2 is SiC intermediate layers, intermediate layer
2 average pore size is 500nm；Ceramic film 3 is porous pure SiC film layers, and the average pore size of ceramic film 3 is 1.2nm.
The preparation method of the ceramic membrane materials component of this implementation, comprises the following steps：
(1) ceramic membrane matrix is prepared
(1.1) it for 300 μm of foamed asphalt is raw material to use average pore size, and tabular ceramics are prepared into according to required shape
The pre- matrix of film.Monocrystalline silicon is put into heat-treatment furnace, under an argon atmosphere, 1500 DEG C are risen to 15 DEG C/min heating rate,
Make crystalline silicon melt to form melt of si, then the pre- matrix of tabular ceramic membrane immersed in melt of si, argon gas atmosphere is kept in stove,
It is incubated 60min.
(1.2) the pre- matrix of tabular ceramic membrane is taken out from melt of si, is warming up to 1700 DEG C in stove again, keep argon gas gas
Atmosphere, cool to room temperature with the furnace after being incubated 4h, obtain ceramic membrane matrix, using gas press bubble method test ceramic membrane matrix surface C and
The aperture of the composite bed of SiC compositions, as a result surface average pore size is 15 μm；
(2) intermediate layer is prepared
(2.1) by silicon carbide powder, Polycarbosilane, hydroxymethyl cellulose ether and water using mass ratio as 5: 2: 0.2: 10 ratio
Example mixing, the particle diameter of silicon carbide powder is 1 μm~5 μm, and silicon carbide-containing slurry is made；
(2.2) by the silicon carbide-containing slurry even application obtained by step (2.1) in the ceramic membrane matrix obtained by step (1.2)
Surface；
(2.3) the ceramic membrane matrix through step (2.2) coating processing is placed in heat-treatment furnace, carried out under an argon atmosphere
Sintering, temperature are 1400 DEG C, time 1h；Surface, which must be arrived, the ceramic membrane matrix of SiC gross porosity film layers, presses bubble method to survey using gas
Try the aperture of SiC gross porosity film layers, the results showed that average pore size 500nm；
(3) ceramic film is prepared
(3.1) the ceramic membrane matrix that the surface obtained by step (2.3) there are SiC gross porosity film layers is placed in heat-treatment furnace,
It is passed through in stove after argon gas after being evacuated to 1000Pa in stove, in-furnace temperature is risen to 1000 DEG C, is continually fed into gasification
Polycarbosilane (number-average molecular weight 1000, gasification temperature be 150 DEG C), time 2h, make the Si -- H bond and c h bond of Polycarbosilane
Fracture, generation pyrolysis product are uniformly attached to SiC gross porosity film surfaces；
(3.2) argon gas atmosphere is kept, in-furnace temperature is risen to 2000 DEG C, 2h is incubated, the Si-O keys in pyrolysis product is broken
Split, generate porous pure SiC layer, the aperture of the porous pure SiC layer of bubble method test is pressed using gas, as a result surface average pore size is
1.2nm。
Embodiment 2：
A kind of ceramic membrane materials component, including multi-channel tube ceramic membrane matrix, it is sequentially located at multi-channel tube ceramic membrane matrix
Intermediate layer, the ceramic film on surface, the internal layer of the multi-channel tube ceramic membrane matrix is pure carbon-coating, and the average pore size of internal layer is
300 μm, outer layer is the composite bed that C and SiC is formed, and the average pore size of outer layer is 16 μm；The multi-channel tube ceramic membrane matrix it is interior
The hole of layer and outer layer penetrates；Intermediate layer is SiC gross porosity film layers, and the average pore size of intermediate layer is 250nm；Ceramic membrane
Layer is porous pure SiC film layers, and the average pore size of ceramic film is 1.2nm.
The preparation method of the ceramic membrane materials component of this implementation, comprises the following steps：
(1) ceramic membrane matrix is prepared
(1.1) it for 300 μm of foamed asphalt is raw material to use average pore size, and multi-channel tube pottery is prepared into according to required shape
The pre- matrix of porcelain film.Monocrystalline silicon is put into heat-treatment furnace, under an argon atmosphere, 1500 are risen to 15 DEG C/min heating rate
DEG C, make crystalline silicon melt to form melt of si, then the pre- matrix of tabular ceramic membrane is immersed in melt of si, argon gas gas is kept in stove
Atmosphere, it is incubated 60min.
(1.2) the pre- matrix of tabular ceramic membrane is taken out from melt of si, is warming up to 1750 DEG C in stove again, keep argon gas gas
Atmosphere, cool to room temperature with the furnace after being incubated 4h, obtain ceramic membrane matrix, using gas press bubble method test ceramic membrane matrix surface C and
The aperture of the composite bed of SiC compositions, as a result surface average pore size is 16 μm；
(2) intermediate layer is prepared
(2.1) by silicon carbide powder, Polycarbosilane, hydroxymethyl cellulose ether and water using mass ratio as 5: 1: 0.1: 10 ratio
Example mixing, the particle diameter of silicon carbide powder is 1 μm~2 μm, and silicon carbide-containing slurry is made；
(2.2) by the silicon carbide-containing slurry even application obtained by step (2.1) in the ceramic membrane matrix obtained by step (1.2)
Surface；
(2.3) the ceramic membrane matrix through step (2.2) coating processing is placed in heat-treatment furnace, carried out under an argon atmosphere
Sintering, temperature are 1500 DEG C, time 1h；Surface, which must be arrived, the ceramic membrane matrix of SiC gross porosity film layers, presses bubble method to survey using gas
Try the aperture of SiC gross porosity film layers, the results showed that average pore size 250nm；
(3) ceramic film is prepared
(3.1) the ceramic membrane matrix that the surface obtained by step (2.3) there are SiC gross porosity film layers is placed in heat-treatment furnace,
It is passed through in stove after argon gas after being evacuated to 1000Pa in stove, in-furnace temperature is risen to 1000 DEG C, is continually fed into gasification
Polycarbosilane (number-average molecular weight 1000, gasification temperature be 150 DEG C), time 2h, make the Si -- H bond and c h bond of Polycarbosilane
Fracture, generation pyrolysis product are uniformly attached to SiC gross porosity film surfaces；
(3.2) argon gas atmosphere is kept, in-furnace temperature is risen to 2000 DEG C, 2h is incubated, the Si-O keys in pyrolysis product is broken
Split, generate porous pure SiC layer, the aperture of the porous pure SiC layer of bubble method test is pressed using gas, as a result surface average pore size is
1.2nm。
Embodiment 3：
A kind of ceramic membrane materials component, including single-pass deferent ceramic membrane matrix, it is sequentially located at single-pass deferent ceramic membrane matrix
Intermediate layer, the ceramic film on surface, the internal layer of the single-pass deferent ceramic membrane matrix is pure carbon-coating, and the average pore size of internal layer is
300 μm, outer layer is the composite bed that C and SiC is formed, and the average pore size of outer layer is 20 μm；The single-pass deferent ceramic membrane matrix it is interior
The hole of layer and outer layer penetrates；Intermediate layer is SiC gross porosity film layers, and the average pore size of intermediate layer is 250nm；Ceramic membrane
Layer is porous pure SiC film layers, and the average pore size of ceramic film is 1.5nm.
The preparation method of the ceramic membrane materials component of this implementation, comprises the following steps：
(1) ceramic membrane matrix is prepared
(1.1) it for 300 μm of foamed asphalt is raw material to use average pore size, and single-pass deferent pottery is prepared into according to required shape
The pre- matrix of porcelain film.Monocrystalline silicon is put into heat-treatment furnace, under an argon atmosphere, 1500 are risen to 15 DEG C/min heating rate
DEG C, make crystalline silicon melt to form melt of si, then the pre- matrix of tabular ceramic membrane is immersed in melt of si, argon gas gas is kept in stove
Atmosphere, it is incubated 60min.
(1.2) the pre- matrix of tabular ceramic membrane is taken out from melt of si, is warming up to 1650 DEG C in stove again, keep argon gas gas
Atmosphere, cool to room temperature with the furnace after being incubated 2h, obtain ceramic membrane matrix, using gas press bubble method test ceramic membrane matrix surface C and
The aperture of the composite bed of SiC compositions, as a result surface average pore size is 20 μm；
(2) intermediate layer is prepared
(2.1) by silicon carbide powder, Polycarbosilane, hydroxymethyl cellulose ether and water using mass ratio as 5: 1: 0.1: 10 ratio
Example mixing, the particle diameter of silicon carbide powder is 1 μm~2 μm, and silicon carbide-containing slurry is made；
(2.2) by the silicon carbide-containing slurry even application obtained by step (2.1) in the ceramic membrane matrix obtained by step (1.2)
Surface；
(2.3) the ceramic membrane matrix through step (2.2) coating processing is placed in heat-treatment furnace, carried out under an argon atmosphere
Sintering, temperature are 1500 DEG C, time 1h；Surface, which must be arrived, the ceramic membrane matrix of SiC gross porosity film layers, presses bubble method to survey using gas
Try the aperture of SiC gross porosity film layers, the results showed that average pore size 250nm；
(3) ceramic film is prepared
(3.1) the ceramic membrane matrix that the surface obtained by step (2.3) there are SiC gross porosity film layers is placed in heat-treatment furnace,
It is passed through in stove after argon gas after being evacuated to 800Pa in stove, in-furnace temperature is risen to 1100 DEG C, is continually fed into the poly- of gasification
Carbon silane (number-average molecular weight 1000, gasification temperature are 150 DEG C), time 2h, the Si -- H bond and c h bond for making Polycarbosilane breaks
Split, generation pyrolysis product is uniformly attached to SiC gross porosity film surfaces；
(3.2) argon gas atmosphere is kept, in-furnace temperature is risen to 2200 DEG C, 2h is incubated, the Si-O keys in pyrolysis product is broken
Schizogenesis presses bubble method to test the aperture of porous pure SiC layer into porous pure SiC layer, using gas, and as a result surface average pore size is
1.5nm。
Finally be necessary described herein be：Above example is served only for making further the technical solution of the utility model
Explain, it is impossible to be interpreted as the limitation to scope of protection of the utility model, those skilled in the art is new according to this practicality
Some nonessential modifications and adaptations that the above of type is made belong to the scope of protection of the utility model.Finally it is necessary
It is described herein to be：Above example is served only for being described in more detail the technical solution of the utility model, it is impossible to manages
Solve and made for the limitation to scope of protection of the utility model, those skilled in the art according to the above of the present utility model
Some nonessential modifications and adaptations belong to the scope of protection of the utility model.
Claims (1)
1. a kind of ceramic membrane materials component, including ceramic membrane matrix, the intermediate layer for being sequentially located at ceramic membrane matrix surface, pottery
Porcelain film layer, it is characterised in that the internal layer of the ceramic membrane matrix is pure carbon-coating, and the average pore size of internal layer is 300 μm~500 μm,
Outer layer is the composite bed that C and SiC is formed, and the average pore size of outer layer is 10 μm~20 μm；The internal layer of the ceramic membrane matrix and outer
The hole insertion of layer；The intermediate layer is SiC intermediate layers, the average pore size of intermediate layer for 100nm~
500nm；The ceramic film is porous pure SiC layer, and the average pore size of ceramic film is 1nm~2nm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082641A (en) * | 2017-05-24 | 2017-08-22 | 广西碧清源环保科技有限公司 | A kind of ceramic membrane materials component |
| CN114146577A (en) * | 2021-12-09 | 2022-03-08 | 广西碧清源环保投资有限公司 | Ceramic filtering membrane capable of releasing negative ions and preparation method thereof |
-
2017
- 2017-05-24 CN CN201720584458.5U patent/CN206828402U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082641A (en) * | 2017-05-24 | 2017-08-22 | 广西碧清源环保科技有限公司 | A kind of ceramic membrane materials component |
| CN107082641B (en) * | 2017-05-24 | 2023-04-25 | 广西碧清源环保科技有限公司 | Ceramic membrane material assembly |
| CN114146577A (en) * | 2021-12-09 | 2022-03-08 | 广西碧清源环保投资有限公司 | Ceramic filtering membrane capable of releasing negative ions and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180625 Address after: 543002 the Guangxi Zhuang Autonomous Region Wuzhou east exit two provinces, 3 floor, Guangdong guest house 330 room Patentee after: GUANGXI BIQINGYUAN ENVIRONMENTAL PROTECTION INVESTMENT Co.,Ltd. Address before: 543000 Zhaoping Town, Zhaoping County, Hezhou, the Guangxi Zhuang Autonomous Region (Lingjiao Village) Patentee before: GUANGXI BRIWATER ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Ceramic membrane material component Effective date of registration: 20221227 Granted publication date: 20180102 Pledgee: Nanning Branch of China Everbright Bank Co.,Ltd. Pledgor: GUANGXI BIQINGYUAN ENVIRONMENTAL PROTECTION INVESTMENT Co.,Ltd. Registration number: Y2022450000238 |