CN108546144A - A kind of environment protection type high-strength porous sound absorbing ceramics and preparation method thereof - Google Patents
A kind of environment protection type high-strength porous sound absorbing ceramics and preparation method thereof Download PDFInfo
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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Abstract
The invention discloses a kind of environment protection type high-strength porous sound absorbing ceramics and preparation method thereof.This method is aided with auxiliary agent and foaming agent using ceramic polished slag, municipal sludge, mill tailings, building castoff as primary raw material, by techniques such as slurry preparation, casting and firings, prepares a kind of environment protection type high-strength porous sound absorbing ceramics.Present invention process is simple, and production cost is low, short preparation period, is suitble to industrialization production.The ceramics of preparation have the characteristics that low porosity height, unit weight, high mechanical strength, sound absorption qualities are excellent, are a kind of excellent environment protection type high-strength porous sound absorbing materials.
Description
Technical field
The present invention relates to porous ceramic film material fields, and in particular to a kind of environment protection type high-strength porous sound absorbing is ceramic and its makes
Preparation Method.
Background technology
With the rapid development of society, noise pollution is on the rise, it has also become hot issue during environmental improvement it
One.It is a kind of effective noise governing measure using porous sound absorbing ceramics, but existing porous sound absorbing ceramics have machinery by force
The shortcomings of relatively low, sound absorption qualities are not high is spent, its popularization and application is greatly limited.
Current existing 104671821 A of apply CN disclose " a kind of low cost porous ceramics sound-absorbing material and its preparation work
Skill ", but the material one side compression strength only has 5.43MPa, yielding, easy to crack, on the other hand its raw material contains hydrogen-oxygen
Change sodium solution, has aggressive, endanger environment.Application 106316140 A of CN disclose that " a kind of high intensity electrical engineering disappears
The preparation method of sound material ", raw material are added to mullite fiber, and cost is expensive and not environmentally, easily causes dust pollution, while its
Compression strength also only has 4~6MPa, is easy to damaged in production, process, yields is low.Apply for that 105565783 A of CN are public
It has opened " a kind of preparation method of aluminum oxide porous foamed ceramics sound-absorbing material ", raw material is aluminium oxide, of high cost, and also it is anti-
Compressive Strength is 4~8MPa, and mechanical property is also relatively low.Apply CN 105174999 A " a kind of porous ceramics sound-absorbing material and its
Preparation method ", raw material include chapter village soil, and white glue mud is of high cost, and its compression strength also only has 7MPa, and mechanical property is still
It is so relatively low.
Therefore, exploitation is a kind of preparing environment protection type high-strength porous sound absorbing ceramic technology using solid waste, has very
Important social effect and economic value.
Invention content
The purpose of the invention is to overcome the disadvantages of the prior art mentioned above, a kind of porous suction of environment protection type high-strength is provided
Sound ceramics and preparation method thereof.The porous sound absorbing ceramics have low porosity height, unit weight, high mechanical strength, sound absorption qualities excellent
The features such as, it can solve the problems, such as the noise pollution of avenue, highway and subway.
To achieve the goals above, the invention is realized by the following technical scheme.
A kind of environment protection type high-strength porous sound absorbing ceramics, the environment protection type high-strength porous sound absorbing ceramics are by following mass fraction
Raw material be prepared：0~50 part of ceramic polished waste residue, 0~20 part of municipal sludge, 0~20 part of mill tailings, building castoff
0~20 part of 0~50 part, 0~10 part of auxiliary agent and foaming agent, 30~120 parts of water.
Preferably, the auxiliary agent includes one kind in reinforcing agent, tackifier, thickener, grinding aid, dispersant and lubricant
Or it is several.
It is further preferred that the auxiliary agent includes sodium carboxymethylcellulose, sodium tripolyphosphate, polyvinyl alcohol and polyethylene glycol
One or more of.
Preferably, the foaming agent is one or more of metal powder and alloy powder.
It is further preferred that the foaming agent is aluminium powder, alusil alloy powder, Al-Mg alloy powder and one kind or several in magnesium powder
Kind.
The method for preparing a kind of above-described environment protection type high-strength porous sound absorbing ceramics, includes the following steps：
(1) slurry preparation：It will be in pretreated ceramic polished waste residue, municipal sludge, mill tailings, building castoff
One or more are aided with auxiliary agent and foaming agent, and water is added to mix, and with ball mill ball milling, slurry is made；
(2) casting：In the ceramic slurry injection mold that step (1) is obtained, hair is kept the temperature under the conditions of 20~100 DEG C
Bubble, then drying and moulding, demoulding obtain green body；
(3) it is burnt into：By step (2) obtained green body, it is burnt at 900~1400 DEG C, after heat preservation, furnace cooling obtains
A kind of environment protection type high-strength porous sound absorbing ceramics.
Preferably, in step (2), the time of the thermal insulation foaming is 0.1~36 hour.
Preferably, in step (3), the time of the heat preservation is 0.5~48 hour.
Compared with prior art, the present invention has the following advantages and beneficial effect：
(1) present invention process is simple, and production cost is low, short preparation period, is suitble to industrialization production.
(2) present invention has double dominant using metal powder or alloy powder as foaming agent.On the one hand in blowing temperature
Under, a large amount of bubbles of reaction generation in the slurry in alkalinity so that slurry volume expansion；On the other hand, in high temperature firing
It is middle to be aoxidized, be conducive to the growth of mullite crystalline phase, improve the intensity of ceramics.
(3) environment protection type high-strength porous sound absorbing ceramics prepared by the present invention, compression strength is 33~45MPa, mechanical property
It is excellent, compared to the prior art, there is marked improvement.
Specific implementation mode
With reference to embodiment, the specific implementation of the present invention is described further, but embodiments of the present invention are unlimited
In this.The person that is not specified actual conditions in embodiment, carries out according to conventional conditions or manufacturer's recommended conditions.Agents useful for same or instrument
Production firm person is not specified in device equipment, is the conventional products that can be bought by commercially available channel.
Embodiment 1
A kind of environment protection type high-strength porous sound absorbing ceramics of the present embodiment and preparation method thereof, it includes the following steps:
(1) pretreatment of raw material：By ceramic polished waste residue, municipal sludge, mill tailings, that building castoff is respectively dried 24 is small
When, then ball milling crosses 30 mesh sieve；
(2) dispensing：Raw material in step (1) is subjected to weighing dispensing by weight ratio, the proportion scale of the raw material is：
40 parts of ceramic polished waste residue, 13 parts of municipal sludge, 10 parts of mill tailings, 20 parts of building castoff, 2 parts of polyethylene glycol and 200 mesh
15 parts of aluminium powder, 100 parts of water；
(3) ball milling：Step (2) prepared raw material is added in ball mill, with 100r/min ball millings 4 hours, material is made
Slurry；
(4) casting：The slurry that step (3) is obtained injects in mold, then mold is placed in the baking oven of temperature 60 C
Middle heat preservation 8 hours, foams, then drying and moulding, and demoulding obtains green body.
(5) it is burnt into：The green body that step (4) is obtained is warming up to 1200 DEG C with the heating rate of 5 DEG C/min, and heat preservation 2 is small
When, furnace cooling obtains a kind of environment protection type high-strength porous sound absorbing ceramics.
Embodiment 2
A kind of environment protection type high-strength porous sound absorbing ceramics of the present embodiment and preparation method thereof, it includes the following steps:
(1) pretreatment of raw material：Ceramic polished waste residue, mill tailings, building castoff are respectively dried 24 hours, then ball
Honed 30 mesh sieve；
(2) dispensing：Raw material in step (1) is subjected to weighing dispensing by weight ratio, the proportion scale of the raw material is：
The aluminium silicon conjunction of 50 parts of ceramic polished waste residue, 20 parts of mill tailings, 10 parts of building castoff, 5 parts of sodium carboxymethylcellulose and 325 mesh
15 parts of bronze, 120 parts of water；
(3) ball milling：Step (2) prepared raw material is added in ball mill, with 100r/min ball millings 4 hours, material is made
Slurry；
(4) casting：The slurry that step (3) is obtained injects in mold, then mold is placed in the baking oven of 80 DEG C of temperature
Middle heat preservation 6 hours, foams, then drying and moulding, and demoulding obtains green body.
(5) it is burnt into：The green body that step (4) is obtained is warming up to 1100 DEG C with the heating rate of 5 DEG C/min, and heat preservation 12 is small
When, furnace cooling obtains a kind of environment protection type high-strength porous sound absorbing ceramics.
Embodiment 3
A kind of environment protection type high-strength porous sound absorbing ceramics of the present embodiment and preparation method thereof, it includes the following steps:
(1) pretreatment of raw material：Ceramic polished waste residue, municipal sludge, building castoff are respectively dried 24 hours, then ball
Honed 30 mesh sieve；
(2) dispensing：Raw material in step (1) is subjected to weighing dispensing by weight ratio, the proportion scale of the raw material is：
10 parts of the aluminium powder of 32 parts of ceramic polished waste residue, 20 parts of municipal sludge, 30 parts of building castoff, 8 parts of polyethylene glycol and 200 mesh, water
80 parts；
(3) ball milling：Step (2) prepared raw material is added in ball mill, with 100r/min ball millings 4 hours, material is made
Slurry；
(4) casting：The slurry that step (3) is obtained injects in mold, then mold is placed in the baking oven of 40 DEG C of temperature
Middle heat preservation 30 hours, foams, then drying and moulding, and demoulding obtains green body.
(5) it is burnt into：The green body that step (4) is obtained is warming up to 1300 DEG C with the heating rate of 5 DEG C/min, and heat preservation 1 is small
When, furnace cooling obtains a kind of environment protection type high-strength porous sound absorbing ceramics.
Embodiment 4
A kind of environment protection type high-strength porous sound absorbing ceramics of the present embodiment and preparation method thereof, it includes the following steps:
(1) pretreatment of raw material：Ceramic polished waste residue, municipal sludge, mill tailings are respectively dried 24 hours, then ball milling
Cross 30 mesh sieve；
(2) dispensing：Raw material in step (1) is subjected to weighing dispensing by weight ratio, the proportion scale of the raw material is：
20 parts of the magnesium powder of 30 parts of ceramic polished waste residue, 19 parts of municipal sludge, 30 parts of mill tailings, 1 part of sodium tripolyphosphate and 200 mesh, water
60 parts；
(3) ball milling：Step (2) prepared raw material is added in ball mill, with 100r/min ball millings 4 hours, material is made
Slurry；
(4) casting：The slurry that step (3) is obtained injects in mold, then mold is placed in the baking oven of 20 DEG C of temperature
Middle heat preservation 36 hours, foams, then drying and moulding, and demoulding obtains green body.
(5) it is burnt into：The green body that step (4) is obtained is warming up to 900 DEG C with the heating rate of 5 DEG C/min, and heat preservation 48 is small
When, furnace cooling obtains a kind of environment protection type high-strength porous sound absorbing ceramics.
Embodiment 5
A kind of environment protection type high-strength porous sound absorbing ceramics of the present embodiment and preparation method thereof, it includes the following steps:
(1) pretreatment of raw material：Municipal sludge, mill tailings, building castoff are respectively dried 24 hours, then ball milling mistake
30 mesh sieve；
(2) dispensing：Raw material in step (1) is subjected to weighing dispensing by weight ratio, the proportion scale of the raw material is：
10 parts of the aluminium powder of 15 parts of municipal sludge, 20 parts of mill tailings, 50 parts of building castoff, 5 parts of polyvinyl alcohol and 400 mesh, water 100
Part；
(3) ball milling：Step (2) prepared raw material is added in ball mill, with 100r/min ball millings 4 hours, material is made
Slurry；
(4) casting：The slurry that step (3) is obtained injects in mold, then mold is placed in the baking oven of temperature 50 C
Middle heat preservation 24 hours, foams, then drying and moulding, and demoulding obtains green body.
(5) it is burnt into：The green body that step (4) is obtained is warming up to 1300 DEG C with the heating rate of 5 DEG C/min, and heat preservation 4 is small
When, furnace cooling obtains a kind of environment protection type high-strength porous sound absorbing ceramics.
Embodiment 6
A kind of environment protection type high-strength porous sound absorbing ceramics of the present embodiment and preparation method thereof, it includes the following steps:
(1) pretreatment of raw material：Ceramic polished waste residue, building castoff are respectively dried 24 hours, then ball milling crosses 30 mesh
Sieve；
(2) dispensing：Raw material in step (1) is subjected to weighing dispensing by weight ratio, the proportion scale of the raw material is：
15 parts of the Al-Mg alloy powder of 40 parts of ceramic polished waste residue, 40 parts of building castoff, 5 parts of polyethylene glycol and 500 mesh, 40 parts of water；
(3) ball milling：Step (2) prepared raw material is added in ball mill, with 100r/min ball millings 4 hours, material is made
Slurry；
(4) casting：The slurry that step (3) is obtained injects in mold, then mold is placed in the baking oven of 90 DEG C of temperature
Middle heat preservation 1 hour, foams, then drying and moulding, and demoulding obtains green body.
(5) it is burnt into：The green body that step (4) is obtained is warming up to 1100 DEG C with the heating rate of 5 DEG C/min, and heat preservation 24 is small
When, furnace cooling obtains a kind of environment protection type high-strength porous sound absorbing ceramics.
Embodiment 7
A kind of environment protection type high-strength porous sound absorbing ceramics of the present embodiment and preparation method thereof, it includes the following steps:
(1) pretreatment of raw material：By ceramic polished waste residue, municipal sludge, mill tailings, that building castoff is respectively dried 24 is small
When, then ball milling crosses 30 mesh sieve；
(2) dispensing：Raw material in step (1) is subjected to weighing dispensing by weight ratio, the proportion scale of the raw material is：
30 parts of ceramic polished waste residue, 15 parts of municipal sludge, 15 parts of mill tailings, 30 parts of building castoff, 8 parts of polyethylene glycol, 200 purposes
1 part of the alusil alloy powder of 1 part of aluminium powder and 200 mesh, 30 parts of water；
(3) ball milling：Step (2) prepared raw material is added in ball mill, with 100r/min ball millings 4 hours, material is made
Slurry；
(4) casting：The slurry that step (3) is obtained injects in mold, then mold is placed in the baking oven of 100 DEG C of temperature
Middle heat preservation 0.1 hour, foams, then drying and moulding, and demoulding obtains green body.
(5) it is burnt into：The green body that step (4) is obtained is warming up to 1400 DEG C with the heating rate of 5 DEG C/min, and heat preservation 0.5 is small
When, furnace cooling obtains a kind of environment protection type high-strength porous sound absorbing ceramics.
Embodiment 8
A kind of environment protection type high-strength porous sound absorbing ceramics of the present embodiment and preparation method thereof, it includes the following steps:
(1) pretreatment of raw material：By ceramic polished waste residue, municipal sludge, mill tailings, that building castoff is respectively dried 24 is small
When, then ball milling crosses 30 mesh sieve；
(2) dispensing：Raw material in step (1) is subjected to weighing dispensing by weight ratio, the proportion scale of the raw material is：
30 parts of ceramic polished waste residue, 15 parts of municipal sludge, 10 parts of mill tailings, 20 parts of building castoff, 5 parts of polyethylene glycol, trimerization phosphorus
15 parts of the aluminium powder of 5 parts of sour sodium and 200 mesh, 80 parts of water；
(3) ball milling：Step (2) prepared raw material is added in ball mill, with 100r/min ball millings 4 hours, material is made
Slurry；
(4) casting：The slurry that step (3) is obtained injects in mold, then mold is placed in the baking oven of temperature 70 C
Middle heat preservation 10 hours, foams, then drying and moulding, and demoulding obtains green body.
(5) it is burnt into：The green body that step (4) is obtained is warming up to 1000 DEG C with the heating rate of 5 DEG C/min, and heat preservation 36 is small
When, furnace cooling obtains a kind of environment protection type high-strength porous sound absorbing ceramics.
Embodiment 9
A kind of environment protection type high-strength porous sound absorbing ceramics of the present embodiment and preparation method thereof, it includes the following steps:
(1) pretreatment of raw material：By ceramic polished waste residue, municipal sludge, mill tailings, that building castoff is respectively dried 24 is small
When, then ball milling crosses 30 mesh sieve；
(2) dispensing：Raw material in step (1) is subjected to weighing dispensing by weight ratio, the proportion scale of the raw material is：
40 parts of ceramic polished waste residue, 15 parts of municipal sludge, 15 parts of mill tailings, 20 parts of building castoff, 3 parts of sodium carboxymethylcellulose,
5 parts of the aluminium powder of 2 parts of polyethylene glycol and 200 mesh, 100 parts of water；
(3) ball milling：Step (2) prepared raw material is added in ball mill, with 100r/min ball millings 4 hours, material is made
Slurry；
(4) casting：The slurry that step (3) is obtained injects in mold, then mold is placed in the baking oven of 80 DEG C of temperature
Middle heat preservation 12 hours, foams, then drying and moulding, and demoulding obtains green body.
(5) it is burnt into：The green body that step (4) is obtained is warming up to 1200 DEG C with the heating rate of 5 DEG C/min, and heat preservation 1 is small
When, furnace cooling obtains a kind of environment protection type high-strength porous sound absorbing ceramics.
Embodiment 10
A kind of environment protection type high-strength porous sound absorbing ceramics of the present embodiment and preparation method thereof, it includes the following steps:
(1) pretreatment of raw material：By ceramic polished waste residue, municipal sludge, mill tailings, that building castoff is respectively dried 24 is small
When, then ball milling crosses 30 mesh sieve；
(2) dispensing：Raw material in step (1) is subjected to weighing dispensing by weight ratio, the proportion scale of the raw material is：
40 parts of ceramic polished waste residue, 10 parts of municipal sludge, 10 parts of mill tailings, 20 parts of building castoff, 3 parts of sodium carboxymethylcellulose,
5 parts of the magnesium powder of 2 parts of polyethylene glycol, 10 parts of the aluminium powder of 200 mesh and 200 mesh, 110 parts of water；
(3) ball milling：Step (2) prepared raw material is added in ball mill, with 100r/min ball millings 4 hours, material is made
Slurry；
(4) casting：The slurry that step (3) is obtained injects in mold, then mold is placed in the baking oven of temperature 60 C
Middle heat preservation 24 hours, foams, then drying and moulding, and demoulding obtains green body.
(5) it is burnt into：The green body that step (4) is obtained is warming up to 1200 DEG C with the heating rate of 5 DEG C/min, and heat preservation 8 is small
When, furnace cooling obtains a kind of environment protection type high-strength porous sound absorbing ceramics.
After tested, such as 1 institute of table of the properties of environment protection type high-strength porous sound absorbing ceramics made from Examples 1 to 10
Show.
Table 1
Table 1 the results show that environment protection type high-strength porous sound absorbing ceramics prepared by the present invention 0.59~0.78g/ of unit weight
cm3, porosity 60~70%, 33~45MPa of compression strength, 2000Hz average sound-absorption coefficient below are more than 0.4, be a kind of excellent
Good environment protection type high-strength porous sound absorbing material.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by the embodiment
Limitation, any changes, modifications, substitutions, combinations, simplifications made by without departing from the spirit and principles of the present invention, should all
For equivalent substitute mode, it is included within the scope of the present invention.
Claims (8)
1. a kind of environment protection type high-strength porous sound absorbing ceramics, which is characterized in that the environment protection type high-strength porous sound absorbing ceramics by with
The raw material of lower mass fraction is prepared：0 ~ 50 part of ceramic polished waste residue, 0 ~ 20 part of mill tailings, is built 0 ~ 20 part of municipal sludge
Build 30 ~ 120 parts of 0 ~ 50 part of waste, 0 ~ 10 part of auxiliary agent, 0 ~ 20 part of foaming agent and water.
2. a kind of environment protection type high-strength porous sound absorbing ceramics according to claim 1, which is characterized in that the auxiliary agent includes
One or more of reinforcing agent, tackifier, thickener, grinding aid, dispersant and lubricant.
3. a kind of environment protection type high-strength porous sound absorbing ceramics according to claim 2, which is characterized in that the auxiliary agent includes
One or more of sodium carboxymethylcellulose, sodium tripolyphosphate, polyvinyl alcohol and polyethylene glycol.
4. a kind of environment protection type high-strength porous sound absorbing ceramics according to claim 1, which is characterized in that the foaming agent is
One or more of metal powder and alloy powder.
5. a kind of environment protection type high-strength porous sound absorbing ceramics according to claim 4, which is characterized in that the foaming agent is
One or more of aluminium powder, alusil alloy powder, Al-Mg alloy powder and magnesium powder.
6. a kind of preparation method of environment protection type high-strength porous sound absorbing ceramics of claim 1-5 any one of them is prepared, it is special
Sign is, includes the following steps：
（1）Slurry preparation：By one kind in pretreated ceramic polished waste residue, municipal sludge, mill tailings, building castoff
Or it is several, it is aided with auxiliary agent and foaming agent, water is added to mix, with ball mill ball milling, slurry is made；
（2）Casting：By step（1）In obtained slurry injection mold, thermal insulation foaming under the conditions of 20 ~ 100 DEG C, then
Drying and moulding, demoulding obtain green body；
（3）Firing：By step（2）Obtained green body is burnt at 900 ~ 1400 DEG C, and after heat preservation, furnace cooling obtains a kind of ring
The high intensity, porous sound-absorbing ceramics of guarantor's type.
7. a kind of preparation method of environment protection type high-strength porous sound absorbing ceramics according to claim 6, which is characterized in that step
Suddenly（2）In, the time of the thermal insulation foaming is 0.1 ~ 36 hour.
8. a kind of preparation method of environment protection type high-strength porous sound absorbing ceramics according to claim 6, which is characterized in that step
Suddenly（3）In, the time of the heat preservation is 0.5 ~ 48 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299660.2A CN108546144B (en) | 2018-04-04 | 2018-04-04 | Environment-friendly high-strength porous sound-absorbing ceramic and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299660.2A CN108546144B (en) | 2018-04-04 | 2018-04-04 | Environment-friendly high-strength porous sound-absorbing ceramic and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108546144A true CN108546144A (en) | 2018-09-18 |
| CN108546144B CN108546144B (en) | 2021-07-20 |
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Cited By (4)
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| CN110171955A (en) * | 2019-05-10 | 2019-08-27 | 广东古宝斯陶瓷有限公司 | A kind of high-strength light pure color ceramic wafer and preparation method thereof |
| CN115180921A (en) * | 2022-06-14 | 2022-10-14 | 桂林理工大学 | Preparation method and application of sound-absorbing foamed ceramic |
| CN116283226A (en) * | 2023-04-12 | 2023-06-23 | 国发环保新材料(江门)有限公司 | Formula and process for preparing foamed ceramic by using aluminum ash and ceramic polishing slag |
| CN116283221A (en) * | 2023-03-01 | 2023-06-23 | 南京声远声学科技有限公司 | Micro-perforated sound-absorbing ceramic material based on Taihu sediment and preparation method thereof |
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| CN115180921A (en) * | 2022-06-14 | 2022-10-14 | 桂林理工大学 | Preparation method and application of sound-absorbing foamed ceramic |
| CN116283221A (en) * | 2023-03-01 | 2023-06-23 | 南京声远声学科技有限公司 | Micro-perforated sound-absorbing ceramic material based on Taihu sediment and preparation method thereof |
| CN116283221B (en) * | 2023-03-01 | 2023-11-14 | 南京声远声学科技有限公司 | Micro-perforated sound-absorbing ceramic material based on Taihu sediment and preparation method thereof |
| CN116283226A (en) * | 2023-04-12 | 2023-06-23 | 国发环保新材料(江门)有限公司 | Formula and process for preparing foamed ceramic by using aluminum ash and ceramic polishing slag |
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