CN111792908B - Ceramic fiber porous filter material reinforcing agent, preparation method thereof and ceramic fiber reinforcing material - Google Patents
Ceramic fiber porous filter material reinforcing agent, preparation method thereof and ceramic fiber reinforcing material Download PDFInfo
- Publication number
- CN111792908B CN111792908B CN202010704563.4A CN202010704563A CN111792908B CN 111792908 B CN111792908 B CN 111792908B CN 202010704563 A CN202010704563 A CN 202010704563A CN 111792908 B CN111792908 B CN 111792908B
- Authority
- CN
- China
- Prior art keywords
- ceramic fiber
- parts
- reinforcing agent
- weight
- fiber porous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- C04B28/34—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 cold phosphate binders
- C04B28/344—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 cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Filtering Materials (AREA)
Abstract
The invention provides a ceramic fiber porous filter material reinforcing agent which comprises the following components in parts by weight: deionized water: 100 parts of inorganic adhesive material: 20-80 parts of active mineral powder: 5-40 parts of a surfactant: 2-8 parts; the inorganic adhesive material is one or more of aluminum sol, silica sol and aluminum dihydrogen phosphate; the active mineral powder is one or more of kaolin, bentonite, calcined kaolin and nano silicon dioxide. After the enhancer is implanted into the ceramic fiber porous filter material, the bonding strength between matrix materials can be effectively improved, and the problems that the ceramic fiber porous filter material is low in strength and easy to damage in the using process are solved. Meanwhile, the contradiction between the structure and the function of the ceramic fiber porous filtering material, such as strength, density, filtering performance and the like, can be effectively balanced, and the ceramic fiber porous filtering material with high strength and good filtering performance is obtained.
Description
Technical Field
The invention belongs to the technical field of porous inorganic materials, and particularly relates to a ceramic fiber porous filter material reinforcing agent, a preparation method thereof and a ceramic fiber reinforced material.
Background
The high-temperature flue gas filtering and dust removing technology is a key step for realizing the comprehensive utilization of high-temperature flue gas and is an advanced environment-friendly technology. The core of the technology lies in the filter material, and the filter material has high requirements because the filter material needs to operate for a long time under the high-temperature complex smoke working condition.
The ceramic fiber has excellent characteristics of traditional heat insulating materials and refractory materials, and has the advantages of high temperature resistance, good thermal stability, small heat capacity, light weight, mechanical shock resistance and the like, so that the ceramic fiber can be widely applied to various industrial fields. In addition, by utilizing the material characteristics of the ceramic fiber, a specific structure can be endowed to the ceramic fiber product through a special preparation process, and further, special performances different from the raw material ceramic fiber, such as good buffering and heat insulation performances, excellent sound absorption and noise reduction performances, excellent high-temperature smoke filtering characteristics and the like, are obtained.
Ceramic fiber porous filter materials are generally prepared from ceramic fibers, and a special three-dimensional interweaving structure among the ceramic fibers endows the ceramic fiber product with porous characteristics. With increasing porosity, it is inevitable to bring the elbow in terms of strength. However, the strength of the ceramic fiber filter material is a guarantee for the performance of the filter material, and the service life of the ceramic fiber filter material is directly influenced. Along with the improvement of the strength of the fiber raw material, the strength of the ceramic fiber product is improved to a certain degree, but after the strength reaches a certain degree, the influence of the adhesion among the ceramic fibers on the strength is increased, and the strength of the ceramic fiber product is finally determined. Under the condition of obtaining the ideal binder, the compression degree of the ceramic fiber product is improved, the density is further improved, and the product strength can be improved. However, in the case of the ceramic fiber porous filter material, the binder has a certain influence on the potential of the pore structure, porosity and the like, and further influences the exertion of the filtering performance.
In the prior art, raw materials, a formula and a preparation process of a porous filter material are generally optimized, and the strength of the porous filter material can reach a more ideal state by balancing contradictions between the structure and the performance. The reinforcing effect is limited by the porous characteristic of the ceramic fiber material and by the regulation and control of raw materials, formula or microstructure of the product.
Disclosure of Invention
The invention aims to provide a ceramic fiber porous filter material reinforcing agent, a preparation method thereof and a ceramic fiber reinforcing material.
The invention provides a ceramic fiber porous filter material reinforcing agent which comprises the following components in parts by weight:
deionized water: 100 parts of inorganic adhesive material: 20-80 parts of active mineral powder: 5-40 parts of a surfactant: 2-8 parts;
the inorganic adhesive material is one or more of aluminum sol, silica sol and aluminum dihydrogen phosphate;
the active mineral powder is one or more of kaolin, bentonite, calcined kaolin and nano silicon dioxide.
Preferably, the inorganic adhesive material is aluminum sol, silica sol and aluminum dihydrogen phosphate, and the mass ratio of the aluminum sol to the silica sol to the aluminum dihydrogen phosphate is 1: (0.1-1): (0.1-0.5).
Preferably, the active mineral powder comprises plastic materials and ridge materials;
the plastic material is kaolin and/or bentonite; the ridge material is calcined kaolin and/or nano silicon dioxide.
Preferably, the particle size of the active mineral powder is less than or equal to 10 mu m.
Preferably, the surfactant is one or more of polyethylene glycol, polyoxyethylene fatty acid ester and tween-80.
Preferably, the solid content of the ceramic fiber porous filter material reinforcing agent is 8.5-30%; the viscosity is 5 to 20 mPas.
The invention provides a preparation method of a ceramic fiber porous filter material reinforcing agent, which comprises the following steps:
A) adding 2-8 parts by weight of surfactant into 100 parts by weight of deionized water, and then adding 5-40 parts by weight of active mineral powder to obtain a mixed solution;
B) performing ball milling dispersion on the mixed solution to obtain mixed slurry;
C) and adding 20-80 parts by weight of inorganic adhesive material into the mixed slurry, and stirring and mixing to obtain the ceramic fiber porous filter material reinforcing agent.
The invention provides a ceramic fiber reinforced material, which comprises a ceramic fiber porous filtering material and a reinforcing agent attached to the surface of a hole in the ceramic fiber porous filtering material;
the reinforcing agent is the reinforcing agent for the ceramic fiber porous filter material described above.
Preferably, the application amount of the reinforcing agent is 80-150% of the weight of the ceramic fiber porous filter material.
Preferably, the reinforcing agent is applied to the surface of the ceramic fiber porous filtering material, and after adsorption and permeation, drying and curing are carried out to obtain the ceramic fiber reinforcing material, wherein the temperature of drying and curing is 110-180 ℃; the drying and curing time is 20-48 hours.
The invention provides a ceramic fiber porous filter material reinforcing agent which comprises the following components in parts by weight: deionized water: 100 parts of inorganic adhesive material: 20-80 parts of active mineral powder: 5-40 parts of a surfactant: 2-8 parts; the inorganic adhesive material is one or more of aluminum sol, silica sol and aluminum dihydrogen phosphate; the active mineral powder is one or more of kaolin, bentonite, calcined kaolin and nano silicon dioxide. The invention takes inorganic adhesive material and active mineral powder as the main body of the reinforcing agent, and finally obtains the reinforcing agent with certain solid content and viscosity through the dispersion and dilution effects of deionized water and surfactant, and the reinforcing agent can effectively permeate into the ceramic fiber porous filter material. The superfine active mineral powder, proper solid content and lower viscosity can solve the problems of effective implantation and uniform distribution of the reinforcer in the porous material, and can simultaneously reduce the influence on the filtering performance to the greatest extent. The strengthening agent can have higher adhesive force and drying strength through proper sol material proportion and comprehensive blending of active mineral powder. After the reinforcing agent is implanted into the ceramic fiber porous filtering material, the bonding strength between matrix materials can be effectively improved, and the problems that the ceramic fiber porous filtering material is low in strength and easy to damage in the using process are solved. Meanwhile, the contradiction between the structure and the function of the ceramic fiber porous filtering material, such as strength, density, filtering performance and the like, can be effectively balanced, and the ceramic fiber porous filtering material with high strength and good filtering performance is obtained.
Detailed Description
The invention provides a ceramic fiber porous filter material reinforcing agent which comprises the following components in parts by weight:
deionized water: 100 parts of inorganic adhesive material: 20-80 parts of active mineral powder: 5-40 parts of a surfactant: 2-8 parts;
the inorganic adhesive material is one or more of aluminum sol, silica sol and aluminum dihydrogen phosphate;
the active mineral powder is one or more of kaolin, bentonite, calcined kaolin and nano silicon dioxide.
In the present invention, the deionized water functions to disperse and mix the raw materials, and to control the concentration and viscosity of the suspension.
In the present invention, the weight part of the inorganic adhesive material is 20 to 80 parts, more preferably 30 to 70 parts, and most preferably 40 to 60 parts, and specifically, in the embodiment of the present invention, it may be 20 parts, 30 parts, 40 parts, 50 parts, 65 parts, 70 parts, 66 parts, or 60 parts; the inorganic adhesive material is preferably one or more of aluminum sol, silica sol and aluminum dihydrogen phosphate, more preferably the aluminum sol, the silica sol and the aluminum dihydrogen phosphate, wherein the mass ratio of the aluminum sol to the silica sol to the aluminum dihydrogen phosphate is preferably 1: (0.1-1): (0.1 to 0.5), more preferably 1: (0.2-0.8): (0.2 to 0.4), specifically, in the embodiment of the present invention, the ratio may be 1:0.8:0.2, 1:1:0.5, 1:0.67:0.33, 1:0.4:0.2, 1:0.4:0.27 or 1:0.83: 0.33.
In the invention, the alumina sol is a good high-temperature resistant forming binder, the colloidal particles are thick, the permeation and adsorption performance of the alumina sol is deficient, and the silica sol is a good refractory material binder, and the permeability is strong, but the volume shrinkage is large in the process of forming a film on the surface of a matrix material such as fiber and the like, the coating film is easy to crack, and the bonding strength between the matrix materials is influenced, so that the alumina sol and the silica sol are mixed for use, the advantages can be complemented, and a good application effect can be achieved. However, the applicant finds that when the two materials are mixed for use, the potential balance of the system is damaged, so that colloidal particles are enlarged and even precipitate is formed, therefore, the proportion of the two materials needs to be controlled, and aluminum dihydrogen phosphate is added as a high-temperature binder, and the addition of the aluminum dihydrogen phosphate is beneficial to the use stability of the porous material at high temperature, so that the small amount of the aluminum dihydrogen phosphate can ensure that the reinforced porous filter material can keep better high-temperature performance.
In the invention, the weight part of the active mineral powder is preferably 5 to 40 parts, more preferably 10 to 35 parts, and most preferably 15 to 30 parts, specifically, in the embodiment of the invention, 8 parts, 10 parts, 18 parts, 21 parts, 28 parts, 34 parts, 38 parts, 35 parts, or 40 parts; the active mineral powder is divided into plastic materials and ridge materials, and the plastic materials are materials which are deformed obviously and are not damaged under the action of external force and are called as plastic materials. The kaolin and the bentonite are plastic materials, so that the reinforcing agent attached to the base material can be prevented from cracking and affecting strength, and meanwhile, the viscosity degree of the reinforcing agent can be regulated and controlled in the burdening stage, so that the ridge material can be dispersed and suspended easily, but the plastic material has large drying shrinkage and needs to be controlled in dosage. Calcined kaolin and nano silicon dioxide are ridge materials, so that the chemical stability is high, the shrinkage of a blank in drying and sintering can be reduced, the drying speed is accelerated, and the cracking of a product is reduced.
According to the invention, the plastic material and the ridge material are preferably added at the same time, the plastic material can regulate and control the viscosity of the reinforcing agent, the ridge material can be used as the aggregate to improve the bonding strength after drying, the ridge material is easy to disperse, and the ridge material can be used as the adhesive aggregate to improve the bonding strength after drying.
In the invention, the mass ratio of the plastic material to the ridge material is preferably (0.3-1): 1, more preferably (0.4 to 0.8): 1, most preferably (0.5 to 0.6): 1.
the aperture of the ceramic fiber porous filter material for reinforcement is about 15 μm, so the average particle size of the active mineral powder in the application is preferably less than or equal to 10 μm, so that the ground active mineral powder can smoothly enter the interior of the ceramic fiber porous filter material.
In the invention, the surfactant is used for promoting dispersion of the active mineral powder, preferably a nonionic surfactant, more preferably one or more of polyethylene glycol, polyoxyethylene fatty acid ester and tween-80, and the weight part of the surfactant is preferably 2-8 parts, more preferably 3-7 parts, most preferably 4-6 parts, and specifically may be 2 parts, 5 parts, 8 parts, 1 part or 6 parts in the embodiment of the invention.
The reinforcing agent is a suspension, and the solid content of the reinforcing agent is preferably 8.5-30%, more preferably 10-25%, and most preferably 15-20%. In particular, in embodiments of the invention, it may be 10.43%, 11.20%, 16.93%, 18.88%, 22.41%, 24.78%, 26.42%, 25.59%, or 22.51%. By controlling the solid content, the influence of the reinforcing agent on the air permeability of the porous filter material can be effectively controlled.
In the present invention, the viscosity of the reinforcing agent at room temperature is preferably 5 to 20 mPas, more preferably 10 to 15 mPas, and specifically, in the examples of the present invention, it may be 5 mPas, 6 mPas, 12 mPas, 10 mPas, 15 mPas, 18 mPas, 16 mPas or 13 mPas. The reinforcing agent in the viscosity range of the present invention can ensure sufficient fluidity and permeability of the mixed slurry.
The invention also provides a preparation method of the ceramic fiber porous filter material reinforcing agent, which comprises the following steps:
A) adding 2-8 parts by weight of surfactant into 100 parts by weight of deionized water, and then adding 5-40 parts by weight of active mineral powder to obtain a mixed solution;
B) performing ball milling dispersion on the mixed solution to obtain mixed slurry;
C) and adding 20-80 parts by weight of inorganic adhesive material into the mixed slurry, and stirring and mixing to obtain the ceramic fiber porous filter material reinforcing agent.
In the present invention, the kinds and amounts of the surfactant, the deionized water, the active mineral powder and the inorganic adhesive material are the same as those of the surfactant, the deionized water, the active mineral powder and the inorganic adhesive material, and thus, the description thereof is omitted.
According to the invention, the surfactant is added into the deionized water, so that the surface tension of water can be changed, powder dispersion is facilitated, then the planetary ball mill is adopted for high-energy grinding dispersion, slurry with proper particle size distribution and dispersion state can be obtained, and finally the slurry and the adhesive material are stirred and mixed by using the cantilever type stirrer. By adopting the two-step mixing process, the active powder can be effectively dispersed, and the system change of the adhesive material in the high-energy grinding process can be avoided.
In the invention, a 40L-capacity planetary ball mill is taken as an example, the ball milling speed is revolution 100-195 rpm, rotation 200-390 rpm, and the working temperature of the ball milling is preferably room temperature; after ball milling, the particle size distribution in the slurry is that D90 is less than or equal to 8 mu m, and D50 is less than or equal to 5 mu m.
The invention provides a ceramic fiber reinforced material, which comprises a ceramic fiber porous filter material and a reinforcing agent attached to the surface of the ceramic fiber porous filter material;
the reinforcing agent is the reinforcing agent for the ceramic fiber porous filtering material, and the application amount of the reinforcing agent is 80-150% of the weight of the ceramic fiber porous filtering material, preferably 90-140%, more preferably 100-130%, and most preferably 110-120%.
The invention also provides an application of the ceramic fiber porous filter material reinforcing agent in the ceramic fiber porous filter material, which comprises the following steps:
the ceramic fiber porous filter material reinforcing agent is sprayed on the surface of the ceramic fiber porous filter material, and is dried and solidified after adsorption and permeation, so that the ceramic fiber porous filter material with enhanced strength is obtained.
In the present invention, the ceramic fiber porous filter material may be various products such as a ceramic fiber filter tube, a ceramic fiber filter plate, a ceramic fiber filter membrane, and the like. The reinforcing agent can be repeatedly sprayed on the surface of the ceramic fiber porous filtering material for multiple times until the coating amount reaches 80-150% of the mass of the ceramic fiber porous filtering material.
In the invention, the spraying process can be a spraying process commonly used in the field. The coating amount of the reinforcing agent is preferably 100-120% of the mass of the ceramic fiber porous filter material.
In the invention, the drying and curing temperature is preferably 110-180 ℃, more preferably 120-170 ℃, and most preferably 130-160 ℃, specifically, in the embodiment of the invention, 150 ℃; the drying and curing time is preferably 20 to 48 hours, and more preferably 24 to 36 hours.
Compared with the prior art, the invention has the following advantages:
1. the ceramic fiber porous filter material reinforcer provided by the invention can effectively improve the strength of the ceramic fiber porous filter material, reduce the risk of breakage of the ceramic fiber porous filter material in engineering application and prolong the service life of the porous filter material.
2. The reinforcer provided by the invention effectively controls the solid content and the viscosity, has good fluidity and permeability, can be uniformly distributed in the porous filter material, and can effectively reduce the influence on the porosity of the porous material.
3. The reinforcing agent provided by the invention adopts superfine active mineral powder with the average particle size of less than or equal to 10 mu m as reinforcing aggregate, and after high-energy grinding and mixing, the drying strength of the reinforcing agent can be improved, so that the strength of a matrix material is improved, and the filtering performance of the reinforcing agent is not influenced.
4. The preparation method of the enhancer provided by the invention has the advantages of simple process, no special requirements on equipment and low production cost, and is suitable for industrial application.
5. The enhancer provided by the invention has the advantages of simple application process, small influence on the matrix material and good strength improvement effect, and can effectively solve the problem of insufficient strength of the ceramic fiber porous filter material.
For further explanation of the present invention, the ceramic fiber porous filter tube is taken as an example, and the ceramic fiber porous filter material reinforcing agent, the preparation method thereof and the ceramic fiber reinforcing material provided by the present invention are described in detail with reference to the specific examples, but the present invention should not be construed as being limited by the scope of the present invention.
The products in the following examples were tested for performance according to the following method;
the air permeability is quantitatively expressed by adopting the pressure difference value formed by the inner wall and the outer wall of the sample at the filtering wind speed of 1 m/min; the strength is expressed as the ultimate strength of a radially compressed C-ring sample at ambient temperature.
Example 1
Adding 2 parts by weight of polyethylene glycol into 100 parts by weight of deionized water, then adding 2 parts by weight of kaolin, 1 part by weight of bentonite and 5 parts by weight of nano silicon dioxide, and grinding and dispersing by adopting a planetary ball mill; and then transferring the ground slurry to a cantilever type stirrer, adding 10 parts by weight of aluminum sol, 8 parts by weight of silica sol and 2 parts by weight of aluminum dihydrogen phosphate, and stirring and mixing at a high speed to obtain the ceramic fiber porous filter material reinforcing agent. The reinforcing agent thus obtained had a solid content of 10.43% and a viscosity of 5 mPas at room temperature. After the strengthening treatment, the ultimate strength of the sample of the ceramic fiber filter tube radially compressed C ring is 0.97MPa, and the differential pressure value is 400 Pa.
Example 2
Adding 5 parts by weight of polyethylene glycol into 100 parts by weight of deionized water, then adding 2 parts by weight of kaolin, 1 part by weight of bentonite and 7 parts by weight of nano silicon dioxide, and grinding and dispersing by adopting a planetary ball mill; and then transferring the ground slurry to a cantilever type stirrer, adding 8 parts by weight of aluminum sol, 8 parts by weight of silica sol and 4 parts by weight of aluminum dihydrogen phosphate, and stirring and mixing at a high speed to obtain the ceramic fiber porous filter material reinforcing agent. The reinforcing agent thus obtained had a solids content of 11.20% and a viscosity of 6 mPas at room temperature. After the strengthening treatment, the ultimate strength of the sample of the ceramic fiber filter tube radially compressed C ring is 1.15MPa, and the differential pressure value is 420 Pa.
Example 3
Adding 5 parts by weight of polyoxyethylene fatty acid ester into 100 parts by weight of deionized water, then adding 4 parts by weight of kaolin, 2 parts by weight of bentonite and 12 parts by weight of calcined kaolin, and grinding and dispersing by adopting a planetary ball mill; and then transferring the ground slurry to a cantilever type stirrer, adding 15 parts by weight of aluminum sol, 10 parts by weight of silica sol and 5 parts by weight of aluminum dihydrogen phosphate, and stirring and mixing at a high speed to obtain the ceramic fiber porous filter material reinforcing agent. The reinforcing agent thus obtained had a solids content of 16.93% and a viscosity of 12 mPas at room temperature. After the strengthening treatment, the ultimate strength of the sample of the ceramic fiber filter tube in the radial compression C ring is 1.58MPa, and the differential pressure value is 460 Pa.
Example 4
Adding 8 parts by weight of polyoxyethylene fatty acid ester into 100 parts by weight of deionized water, then adding 4 parts by weight of kaolin, 2 parts by weight of bentonite and 15 parts by weight of nano silicon dioxide, and grinding and dispersing by adopting a planetary ball mill; and then transferring the ground slurry to a cantilever type stirrer, adding 25 parts by weight of aluminum sol, 10 parts by weight of silica sol and 5 parts by weight of aluminum dihydrogen phosphate, and stirring and mixing at a high speed to obtain the ceramic fiber porous filter material reinforcing agent. The reinforcing agent thus obtained had a solids content of 18.88% and a viscosity of 10 mPas at room temperature. After the strengthening treatment, the ultimate strength of the sample of the ceramic fiber filter tube in the radial compression C ring is 1.53MPa, and the differential pressure value is 430 Pa.
Example 5
Adding 6 parts by weight of tween-80 into 100 parts by weight of deionized water, then adding 6 parts by weight of kaolin, 6 parts by weight of bentonite and 16 parts by weight of calcined kaolin, and grinding and dispersing by adopting a planetary ball mill; and then transferring the ground slurry to a cantilever type stirrer, adding 30 parts by weight of aluminum sol, 12 parts by weight of silica sol and 8 parts by weight of aluminum dihydrogen phosphate, and stirring and mixing at a high speed to obtain the ceramic fiber porous filter material reinforcing agent. The reinforcing agent thus obtained had a solids content of 22.41% and a viscosity of 15 mPas at room temperature. After the strengthening treatment, the ultimate strength of the sample of the ceramic fiber filter tube radially compressed C ring is 1.77MPa, and the differential pressure value is 470 Pa.
Example 6
Adding 8 parts by weight of tween-80 into 100 parts by weight of deionized water, then adding 10 parts by weight of kaolin, 6 parts by weight of bentonite and 18 parts by weight of nano silicon dioxide, and grinding and dispersing by adopting a planetary ball mill; and then transferring the ground slurry to a cantilever type stirrer, adding 30 parts by weight of aluminum sol, 25 parts by weight of silica sol and 10 parts by weight of aluminum dihydrogen phosphate, and stirring and mixing at a high speed to obtain the ceramic fiber porous filter material reinforcing agent. The reinforcing agent thus obtained had a solids content of 24.78% and a viscosity of 18 mPas at room temperature. After the strengthening treatment, the ultimate strength of the sample of the ceramic fiber filter tube radially compressed C ring is 1.95MPa, and the differential pressure value is 450 Pa.
Example 7
Adding 1 part by weight of polyethylene glycol and 6 parts by weight of polyoxyethylene fatty acid ester into 100 parts by weight of deionized water, then adding 10 parts by weight of bentonite, 10 parts by weight of calcined kaolin and 18 parts by weight of nano silicon dioxide, and grinding and dispersing by adopting a planetary ball mill; and then transferring the ground slurry to a cantilever type stirrer, adding 60 parts by weight of aluminum sol and 10 parts by weight of aluminum dihydrogen phosphate, and stirring and mixing at a high speed to obtain the ceramic fiber porous filter material reinforcing agent. The reinforcing agent thus obtained had a solids content of 26.42% and a viscosity of 18 mPas at room temperature. After the strengthening treatment, the ultimate strength of the sample of the ceramic fiber filter tube radially compressed C ring is 2.22MPa, and the differential pressure value is 480 Pa.
Example 8
Adding 2 parts by weight of polyethylene glycol and 6 parts by weight of polyoxyethylene fatty acid ester into 100 parts by weight of deionized water, then adding 10 parts by weight of kaolin and 25 parts by weight of nano silicon dioxide, and grinding and dispersing by adopting a planetary ball mill; and then transferring the ground slurry into a cantilever type stirrer, adding 60 parts by weight of silica sol and 6 parts by weight of aluminum dihydrogen phosphate, and stirring and mixing at a high speed to obtain the ceramic fiber porous filter material reinforcing agent. The reinforcing agent thus obtained had a solids content of 25.59% and a viscosity of 16 mPas at room temperature. After the strengthening treatment, the ultimate strength of the sample of the ceramic fiber filter tube radially compressed C ring is 1.98MPa, and the differential pressure value is 460 Pa.
Example 9
Adding 6 parts by weight of fatty acid polyoxyethylene ester into 100 parts by weight of deionized water, then adding 40 parts by weight of nano silicon dioxide, and grinding and dispersing by adopting a planetary ball mill; and then transferring the ground slurry into a cantilever type stirrer, adding 60 parts by weight of aluminum sol, and stirring and mixing at a high speed to obtain the ceramic fiber porous filter material reinforcing agent. The reinforcing agent thus obtained had a solids content of 22.51% and a viscosity of 13 mPas at room temperature. After the strengthening treatment, the ultimate strength of the sample of the ceramic fiber filter tube in the radial compression C ring is 1.53MPa, and the differential pressure value is 440 Pa.
Comparative example 1
The ultimate strength of the ceramic fiber filter tube radial compression C ring sample which is not post-treated by adopting a reinforcer is 0.75MPa, and the differential pressure value is 400 Pa.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A ceramic fiber porous filter material reinforcing agent is composed of the following components in parts by weight:
deionized water: 100 parts of inorganic adhesive material: 20-80 parts of active mineral powder: 5-40 parts of a surfactant: 2-8 parts;
the inorganic adhesive material comprises aluminum sol, silica sol and aluminum dihydrogen phosphate, wherein the mass ratio of the aluminum sol to the silica sol to the aluminum dihydrogen phosphate is 1: (0.1-0.4): (0.1 to 0.2);
the active mineral powder comprises a plastic material and a ridge material; the mass ratio of the plastic material to the ridge material is (0.3-1): 1;
the plastic material is kaolin and/or bentonite; the ridge material is calcined kaolin and/or nano silicon dioxide;
the particle size of the active mineral powder is less than or equal to 10 mu m;
the solid content of the ceramic fiber porous filter material reinforcing agent is 8.5-30%; the viscosity is 5 to 20 mPas.
2. The reinforcing agent for ceramic fiber porous filter materials according to claim 1, wherein the surfactant is one or more of polyethylene glycol, polyoxyethylene fatty acid ester, and tween-80.
3. A method for preparing a reinforcing agent for ceramic fiber porous filter material according to claim 1, comprising the steps of:
A) adding 2-8 parts by weight of surfactant into 100 parts by weight of deionized water, and then adding 5-40 parts by weight of active mineral powder to obtain a mixed solution;
B) performing ball milling dispersion on the mixed solution to obtain mixed slurry;
C) and adding 20-80 parts by weight of inorganic adhesive material into the mixed slurry, and stirring and mixing to obtain the ceramic fiber porous filter material reinforcing agent.
4. A ceramic fiber reinforced material comprises a ceramic fiber porous filtering material and a reinforcing agent attached to the surface of the inner holes of the ceramic fiber porous filtering material;
the reinforcing agent is the reinforcing agent for the ceramic fiber porous filter material of any one of claims 1 to 2 or the reinforcing agent for the ceramic fiber porous filter material prepared by the preparation method of claim 3.
5. The ceramic fiber reinforced material of claim 4, wherein the reinforcing agent is applied in an amount of 80 to 150% by weight of the ceramic fiber porous filter material.
6. The ceramic fiber reinforced material as claimed in claim 4, wherein the reinforcing agent is applied on the surface of the ceramic fiber porous filtering material, and after adsorption and penetration, the ceramic fiber reinforced material is obtained by drying and curing, and the temperature of the drying and curing is 110-180 ℃; the drying and curing time is 20-48 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010704563.4A CN111792908B (en) | 2020-07-21 | 2020-07-21 | Ceramic fiber porous filter material reinforcing agent, preparation method thereof and ceramic fiber reinforcing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010704563.4A CN111792908B (en) | 2020-07-21 | 2020-07-21 | Ceramic fiber porous filter material reinforcing agent, preparation method thereof and ceramic fiber reinforcing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111792908A CN111792908A (en) | 2020-10-20 |
| CN111792908B true CN111792908B (en) | 2022-04-26 |
Family
ID=72807922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010704563.4A Active CN111792908B (en) | 2020-07-21 | 2020-07-21 | Ceramic fiber porous filter material reinforcing agent, preparation method thereof and ceramic fiber reinforcing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111792908B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112535907B (en) * | 2020-12-23 | 2022-06-03 | 山东鲁阳节能材料股份有限公司 | High-density ceramic fiber filter material and preparation method thereof |
| CN113816719B (en) * | 2021-10-09 | 2023-01-31 | 航天特种材料及工艺技术研究所 | Phosphate group nano heat-insulating material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR840001533A (en) * | 1982-09-27 | 1984-05-07 | 원창희(외 1) | Manufacturing method of combustion bin for domestic anthracite coal |
| EP1491499A1 (en) * | 2002-03-26 | 2004-12-29 | Nissan Chemical Industries, Ltd. | Composite sol, process for producing the same, and ink-jet recording medium |
| WO2008123671A2 (en) * | 2007-04-04 | 2008-10-16 | Sem Co., Ltd. | Ceramic foam and method for manufacturing it |
| CN109665764A (en) * | 2019-02-27 | 2019-04-23 | 盐城飞潮环保技术有限公司 | A kind of pyroceram fibre pipe |
| CN111408283A (en) * | 2020-03-13 | 2020-07-14 | 山东工业陶瓷研究设计院有限公司 | Ceramic fiber membrane reinforcing slurry, preparation method and ceramic fiber membrane reinforcing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MXPA04000118A (en) * | 2001-07-06 | 2004-06-03 | 3M Innovative Properties Co | Inorganic fiber substrates for exhaust systems and methods of making same. |
-
2020
- 2020-07-21 CN CN202010704563.4A patent/CN111792908B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR840001533A (en) * | 1982-09-27 | 1984-05-07 | 원창희(외 1) | Manufacturing method of combustion bin for domestic anthracite coal |
| EP1491499A1 (en) * | 2002-03-26 | 2004-12-29 | Nissan Chemical Industries, Ltd. | Composite sol, process for producing the same, and ink-jet recording medium |
| WO2008123671A2 (en) * | 2007-04-04 | 2008-10-16 | Sem Co., Ltd. | Ceramic foam and method for manufacturing it |
| CN109665764A (en) * | 2019-02-27 | 2019-04-23 | 盐城飞潮环保技术有限公司 | A kind of pyroceram fibre pipe |
| CN111408283A (en) * | 2020-03-13 | 2020-07-14 | 山东工业陶瓷研究设计院有限公司 | Ceramic fiber membrane reinforcing slurry, preparation method and ceramic fiber membrane reinforcing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111792908A (en) | 2020-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111792908B (en) | Ceramic fiber porous filter material reinforcing agent, preparation method thereof and ceramic fiber reinforcing material | |
| CN110256059A (en) | A kind of high throughput earthenware slab film and preparation method thereof | |
| CN111533572A (en) | Preparation method of porous silicon carbide ceramic support | |
| CN108147705B (en) | Magnesium efficient anti-cracking agent for cement concrete, preparation method and application thereof | |
| CN105314999A (en) | Nano porous high-temperature-insulating material taking thixotropic colloid as template agent and preparation method for high-temperature-insulating material | |
| CN111675941A (en) | Preparation method of water-based heat-insulating and cooling coating | |
| CN111410523B (en) | Ultra-light porous fused quartz foam and preparation method thereof | |
| CN112898009B (en) | Preparation method of calcium hexaluminate foamed ceramic with multilayer structure | |
| US20120276365A1 (en) | Refractory Porous Ceramics | |
| CN102503419B (en) | YSZ (Yttria Stabilized Zirconia)-based composite thermal barrier coating material and preparation method thereof | |
| CN109320257B (en) | Preparation method of high-strength high-porosity porous silicon nitride ceramic | |
| CN113200738B (en) | Low-glass-phase porous ceramic material, porous ceramic and preparation method thereof | |
| CN112321297B (en) | Method for preparing porous oxide microspheres by using geopolymer as binder | |
| CN107253863B (en) | Light heat-insulating material containing silica micropowder | |
| CN115254070B (en) | Composite honeycomb adsorption material capable of being desorbed at high temperature and preparation method and application thereof | |
| CN114804708A (en) | Montmorillonite modified epoxy resin slow-release type self-repairing microcapsule and preparation method thereof | |
| JP4524425B2 (en) | Ceramic nanoparticle-coated organic resin sphere particles, molded body thereof, porous ceramics, and production method thereof | |
| CN111995303B (en) | Mineral fiber heat-insulating material and preparation method thereof | |
| CN114703602A (en) | Micro-nano multi-stage porous flexible fiber membrane and preparation method thereof | |
| CN114044695A (en) | Porous ceramic material and preparation method thereof | |
| CN113511877A (en) | High-strength concrete and preparation method thereof | |
| CN115894072B (en) | Corrosion-resistant ceramic filter plate and preparation method thereof | |
| CN116535886B (en) | High-temperature-resistant heat-insulating paint and preparation method thereof | |
| CN116003158B (en) | Method for preparing mullite porous ceramic by utilizing lithium slag, mullite porous ceramic and application | |
| CN112441786B (en) | Inorganic wall heat-insulating material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shen Zhonghua Inventor after: Xie Jianlong Inventor after: Lu Xuesheng Inventor after: Lin Liuliu Inventor after: Huang Xing Inventor after: Lin He Inventor before: Shen Zhonghua |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |