CN104649707A - Lightweight sound-insulating and heat-preserving porous ceramic material and preparation method thereof - Google Patents
Lightweight sound-insulating and heat-preserving porous ceramic material and preparation method thereof Download PDFInfo
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- CN104649707A CN104649707A CN201510002369.0A CN201510002369A CN104649707A CN 104649707 A CN104649707 A CN 104649707A CN 201510002369 A CN201510002369 A CN 201510002369A CN 104649707 A CN104649707 A CN 104649707A
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- insulating
- light sound
- porous
- proof
- stupalith
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Abstract
The invention discloses a lightweight sound-insulating and heat-preserving porous ceramic material and a preparation method thereof. The ceramic material is prepared from the following raw materials in percentage by mass by mixing: 85-90% of quartz wastes, 3-8% of potassium carbonate, 1-5% of sodium carbonate, and 1-3% of a foaming agent. According to the invention, through changing quartz wastes into things of value, the quartz wastes are subjected to secondary utilization, and the problem of pollution caused by wastes to the environment is reduced.
Description
Technical field
The present invention relates to a kind of stupalith, particularly insulating, porous stupalith of a kind of light sound-proof and preparation method thereof.
Background technology
Highly purified quartz material (99.999%) is the key part in semiconductor devices, can do
The means of transferring, rinse bath etc. of diffusion furnace tube, silicon chip, use widely.Quartz ingot material is through multiple working procedures such as cutting, plain grinding and Drilling operations, and be finally processed in the operation of finished product, the raw material of about about 50% becomes waste material.
At present, the materials such as traditional closed pore porous ceramic film material many employings discarded glass and potassium albite
Form with whipping agent high temperature sintering.Owing to there is the Multiple components such as magnesium oxide and calcium oxide in potassium albite, and the fineness after powder ball milling is generally at 40 microns, batching mixing uniformity is poor, so after about 1200 degree meltings the viscosity lack of homogeneity of viscosity, cause the glass coating between Kong Yukong in uneven thickness after foaming agent foam, cause the volume density of porous ceramic film material generally at 0.5-1.0 g/cm
3between.
Summary of the invention
The object of the present invention is to provide the insulating, porous stupalith of a kind of light sound-proof, quartzy waste material is turned waste into wealth, carry out second stage employ, decrease refuse process pollution on the environment problem simultaneously.
Present invention also offers the preparation method of above-mentioned materials, simple, be applicable to suitability for industrialized production.
The technical solution adopted for the present invention to solve the technical problems is:
The insulating, porous stupalith of a kind of light sound-proof, is characterized in that, become: quartzy waste material 85-90%, salt of wormwood 3-8%, sodium carbonate 1-5%, whipping agent 1-3% by the mixed raw material of following mass percent.
The present invention is intended to quartzy waste material to turn waste into wealth, carry out second stage employ, utilize the characteristic of quartz material melting between 1000 to 1200 degree, additional other materials, by suitable material mixture ratio and ball-milling technology, and special foam process (sintering process), prepare the insulating, porous stupalith of light sound-proof, decrease refuse process pollution on the environment problem simultaneously.
Semi-conductor quartz waste material is after plain grinding technique, grain graininess is generally at 3 to 5 microns, add a small amount of salt of wormwood, sodium carbonate fusion auxiliary agent again, introduce whipping agent simultaneously, abundant ball milling mixing in vertical ball mill, by the blank of cold isostatic compaction technique compacting, at high temperature sinter, fused quartz melt body viscosity controllability is strong, porous ceramics aperture after foaming can effectively control, and glass coating wall between Kong Yukong is thin, compare traditional porous closed pore stupalith, volume density is lower.
As preferably, the particle fineness of described salt of wormwood is 1-3 micron.
As preferably, the particle fineness of described sodium carbonate is 1-3 micron.
As preferably, described whipping agent be selected from silicon carbide, silicon nitride one or both.
As preferably, the particle fineness of described whipping agent is 0.1-0.5 micron.
As preferably, the purity of described quartzy waste material is 99.999%, and particle fineness is at 3-5 micron.
A preparation method for the insulating, porous stupalith of light sound-proof, comprises the following steps:
(1) material prepares: take feed components in proportion: quartzy waste material, salt of wormwood, sodium carbonate and whipping agent, take the distilled water of raw material gross weight 30-50%, take the polyvinyl alcohol of raw material gross weight 1-3%;
(2) mixing and ball milling: feed components, distilled water and polyvinyl alcohol are poured into Keep agitation 30-60min in vertical ball mill, fully mix, obtain ceramic size;
(3) granulation: ceramic size carries out mist projection granulating through mist projection granulating tower, is prepared into the ceramic particle of granularity in 0.3-0.5 millimeter scope;
(4) cold isostatic compaction: will make the ceramic powder of grain at loading mould, cold isostatic compaction under the pressure of 50-80MPa, then natural release, obtain blank body;
(5) sinter: blank body, in high temperature gas-fired furnace, obtains product after high temperature sintering.
As preferably, the state modulator in described high temperature sintering step each stage is:
1. room temperature to 210 DEG C, the time is at 2-6h;
2. 210 DEG C maintain 1-2 hour;
3. 210 DEG C are warming up to 650 DEG C, and the time is at 3-5h;
4. 650 DEG C maintain 2-3 hour;
5. 650 DEG C are warming up to 1100-1200 DEG C, and the time is at 1-3h;
6. 1100-1200 DEG C maintains 1-2 hour;
9. room temperature is naturally cooled to.
Adopt the special sintering process guarantee whipping agent of the present invention fully to foam, form the pore of uniform pore diameter.
Innovative point of the present invention is as follows:
1), be discontinuity vitreum in traditional porous ceramics base substrate chemical constitution, by the viscosity lack of homogeneity of high temperature lower-glass melt, to cause after foaming pore in pottery evenly poor, even occur large pore.The present invention has selected the high purity in semiconductive ceramic field (99.999%) ultra-fine (3-5 micron) quartzy waste material to be main raw material(s), ensure that homogeneity and the stability of melt viscosity under high temperature.Add a small amount of sylvite and sodium salt to regulate the viscosity of high-temperature fusant, the thin light weight of foamed ceramics wall after foaming, pore are evenly fine and closely woven simultaneously.
2), the present invention adopts vertical wet-process ball-milling technology, granulation and cold isostatic compaction technique, by various raw material refinement and the process that homogenizes, define the homogenizing treatment technology of a set of maturation, ensure that the formation of base substrate a large amount of uniform micro-pore (0-0.3mm) in high-temperature sintering process, the volume density≤0.3g/cm of porous ceramics can be made
3, and traditional porous ceramics volume density is at 0.5-1.0 g/cm
3between.
3), traditional foam porous ceramic molding is generally slip casting method and dry-pressing formed, the base substrate internal density lack of homogeneity after shaping, thus after causing high temperature to foam, pore is uneven.And the present invention adopts cold isostatic compaction technique, be characterized in by liquid transfering pressure, thus reach the consistence of blank density, effectively ensure that the homogeneity of bubble in high temperature sintering.Base substrate base substrate additionally by cold isostatic compaction is fine and close, and the gas of the whipping agent volatilization under high temperature is not easy to go out base substrate inside, thus forms the pore of tiny densification.
The invention has the beneficial effects as follows:
1. the insulating, porous stupalith of light sound-proof prepared of the present invention, turns waste into wealth, effectively reduces the burden that quartzy waste disposal causes environment, and greatly saved cost.
2. the insulating, porous stupalith of light sound-proof prepared of the present invention, is the volume density 1/3 to 1/2 of traditional porous ceramic film material, has more excellent sound-proofing properties and heat-insulating property.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.
In the present invention, if not refer in particular to, the raw material adopted and equipment etc. all can be buied from market or this area is conventional.Method in following embodiment, if no special instructions, is the ordinary method of this area.
Quartz waste material provides for Dahe Thermomagnetic Electronic Co., Ltd., Hangzhou, and be the waste material produced in semiconductor grade quartz products processing working angles, the purity of quartzy waste material is 99.999%, and particle fineness is at 3-5 micron.
The particle fineness of oxide spinel potassium of the present invention is 1-3 micron, and the particle fineness of sodium carbonate is 1-3 micron, and the particle fineness of whipping agent is 0.1-0.5 micron.
Embodiment 1:
A preparation method for the insulating, porous stupalith of light sound-proof, comprises the following steps:
(1) material prepares: take feed components in proportion: quartzy waste material 85%, salt of wormwood 8%, sodium carbonate 5% and silicon carbide 2%, take the distilled water of raw material gross weight 30%, takes the polyvinyl alcohol of raw material gross weight 1%.
(2) mixing and ball milling: feed components, distilled water and polyvinyl alcohol are poured into Keep agitation 30min in vertical ball mill, fully mix, obtain ceramic size.
(3) granulation: ceramic size carries out mist projection granulating through mist projection granulating tower, is prepared into the ceramic particle of granularity in 0.3-0.5 millimeter scope.
(4) cold isostatic compaction: will make the ceramic powder of grain at loading mould, cold isostatic compaction under the pressure of 50MPa, pressurize 2min, then natural release, obtain blank body.
(5) sinter: blank body, in high temperature gas-fired furnace, obtains product after high temperature sintering.
The state modulator in high temperature sintering step each stage is:
1. room temperature to 210 DEG C, the time is at 2h;
2. 210 DEG C maintain 2 hours;
3. 210 DEG C are warming up to 650 DEG C, and the time is at 3h;
4. 650 DEG C maintain 3 hours;
5. 650 DEG C are warming up to 1100 DEG C, and the time is at 1h;
6. 1100 DEG C maintain 2 hours;
9. room temperature is naturally cooled to.
Embodiment 2:
A preparation method for the insulating, porous stupalith of light sound-proof, comprises the following steps:
(1) material prepares: take feed components in proportion: quartzy waste material 90%, salt of wormwood 3%, sodium carbonate 4%, silicon carbide 1% and silicon nitride 2%, take the distilled water of raw material gross weight 50%, takes the polyvinyl alcohol of raw material gross weight 3%.
(2) mixing and ball milling: feed components, distilled water and polyvinyl alcohol are poured into Keep agitation 60min in vertical ball mill, fully mix, obtain ceramic size.
(3) granulation: ceramic size carries out mist projection granulating through mist projection granulating tower, is prepared into the ceramic particle of granularity in 0.3-0.5 millimeter scope.
(4) cold isostatic compaction: will make the ceramic powder of grain at loading mould, cold isostatic compaction under the pressure of 80MPa, pressurize 2min, then natural release, obtain blank body.
(5) sinter: blank body, in high temperature gas-fired furnace, obtains product after high temperature sintering.
The state modulator in high temperature sintering step each stage is:
1. room temperature to 210 DEG C, the time is at 6h;
2. 210 DEG C maintain 1 hour;
3. 210 DEG C are warming up to 650 DEG C, and the time is at 5h;
4. 650 DEG C maintain 2 hours;
5. 650 DEG C are warming up to 1200 DEG C, and the time is at 3h;
6. 1200 DEG C maintain 1 hour;
9. room temperature is naturally cooled to.
Embodiment 3:
A preparation method for the insulating, porous stupalith of light sound-proof, comprises the following steps:
(1) material prepares: take feed components in proportion: quartzy waste material 90%, salt of wormwood 6%, sodium carbonate 3% and silicon nitride 1%, take the distilled water of raw material gross weight 40%, takes the polyvinyl alcohol of raw material gross weight 2%.
(2) mixing and ball milling: feed components, distilled water and polyvinyl alcohol are poured into Keep agitation 50min in vertical ball mill, fully mix, obtain ceramic size.
(3) granulation: ceramic size carries out mist projection granulating through mist projection granulating tower, is prepared into the ceramic particle of granularity in 0.3-0.5 millimeter scope.
(4) cold isostatic compaction: will make the ceramic powder of grain at loading mould, cold isostatic compaction under the pressure of 70MPa, pressurize 2min, then natural release, obtain blank body.
(5) sinter: blank body, in high temperature gas-fired furnace, obtains product after high temperature sintering.
The state modulator in high temperature sintering step each stage is:
1. room temperature to 210 DEG C, the time is at 3h;
2. 210 DEG C maintain 1.5 hours;
3. 210 DEG C are warming up to 650 DEG C, and the time is at 4h;
4. 650 DEG C maintain 2.5 hours;
5. 650 DEG C are warming up to 1200 DEG C, and the time is at 2h;
6. 1200 DEG C maintain 1.5 hours;
9. room temperature is naturally cooled to.
Embodiment 4:
The present embodiment difference from Example 3 is the formula of feed components: quartzy waste material 89%, salt of wormwood 7%, sodium carbonate 1%, silicon carbide 1.5% and silicon nitride 1.5%.The other the same as in Example 3.
The invention provides a kind of volume density≤0.3g/cm
3light-weight thermal-insulating and sound-insulating porous silica stupalith.Its constructional feature is the pore that there is numerous mutual disconnected aperture 0-0.3mm in silicon oxide ceramics matrix, can float on the water surface for a long time, the pore collection insulation wherein mutually closed, heat insulation, waterproof, fire prevention, protection against the tide, function every noise, also there is resistance to acids and bases, the lagging material of inner wall of building can be widely used in, and power station cigarette is from the lagging material of inside, in addition, subway and the wall decorative material such as huge event building and KTV can also be applied to, use as sound insulation and lagging material.
The insulating, porous stupalith of light sound-proof prepared by the present invention is the volume density 1/3 to 1/2 of traditional porous ceramic film material, has more excellent sound-proofing properties and heat-insulating property, and its specific performance is:
1, volume density :≤0.3g/cm
3;
2, absorb sound every noise: reduce by 20 decibels;
3, acid and alkali-resistance: > 98%;
4, use temperature scope :-40 ~+400 DEG C
5, thermal conductivity: 0.03-0.14w/(m.k);
6, water-intake rate :≤0.5%;
7, folding strength: 1.2-8.6Mpa;
8, ultimate compression strength: 2.1-18.7 Mpa;
9, flammable: not so.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (8)
1. the insulating, porous stupalith of light sound-proof, is characterized in that, is become: quartzy waste material 85-90%, salt of wormwood 3-8%, sodium carbonate 1-5%, whipping agent 1-3% by the mixed raw material of following mass percent.
2. the insulating, porous stupalith of a kind of light sound-proof according to claim 1, is characterized in that: the particle fineness of described salt of wormwood is 1-3 micron.
3. the insulating, porous stupalith of a kind of light sound-proof according to claim 1, is characterized in that: the particle fineness of described sodium carbonate is 1-3 micron.
4. the insulating, porous stupalith of a kind of light sound-proof according to claim 1 or 2 or 3, is characterized in that: described whipping agent be selected from silicon carbide, silicon nitride one or both.
5. the insulating, porous stupalith of a kind of light sound-proof according to claim 4, is characterized in that: the particle fineness of described whipping agent is 0.1-0.5 micron.
6. the insulating, porous stupalith of a kind of light sound-proof according to claim 1 or 2 or 3, is characterized in that: the purity of described quartzy waste material is 99.999%, and particle fineness is at 3-5 micron.
7. the preparation method of the insulating, porous stupalith of light sound-proof as claimed in claim 1, is characterized in that, comprise the following steps:
(1) material prepares: take feed components in proportion: quartzy waste material, salt of wormwood, sodium carbonate and whipping agent, take the distilled water of raw material gross weight 30-50%, take the polyvinyl alcohol of raw material gross weight 1-3%;
(2) mixing and ball milling: feed components, distilled water and polyvinyl alcohol are poured into Keep agitation 30-60min in vertical ball mill, fully mix, obtain ceramic size;
(3) granulation: ceramic size carries out mist projection granulating through mist projection granulating tower, is prepared into the ceramic particle of granularity in 0.3-0.5 millimeter scope;
(4) cold isostatic compaction: will make the ceramic powder of grain at loading mould, cold isostatic compaction under the pressure of 50-80MPa, then natural release, obtain blank body;
(5) sinter: blank body, in high temperature gas-fired furnace, obtains product after high temperature sintering.
8. preparation method according to claim 7, is characterized in that: the state modulator in described high temperature sintering step each stage is:
1. room temperature to 210 DEG C, the time is at 2-6h;
2. 210 DEG C maintain 1-2 hour;
3. 210 DEG C are warming up to 650 DEG C, and the time is at 3-5h;
4. 650 DEG C maintain 2-3 hour;
5. 650 DEG C are warming up to 1100-1200 DEG C, and the time is at 1-3h;
6. 1100-1200 DEG C maintains 1-2 hour;
9. room temperature is naturally cooled to.
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| CN104649707B CN104649707B (en) | 2016-06-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747560A (en) * | 2016-12-05 | 2017-05-31 | 郑州丽福爱生物技术有限公司 | A kind of porous thermal insulating composite ceramic material |
| CN108911715A (en) * | 2018-08-06 | 2018-11-30 | 烟台大学 | A kind of closed cell foamed ceramics and preparation method thereof with hard and compact shell |
| CN109265136A (en) * | 2018-09-05 | 2019-01-25 | 东莞市正品五金电子有限公司 | A method of ceramics are produced using waste sand of quartz |
| CN112624745A (en) * | 2020-12-21 | 2021-04-09 | 南京工业大学东海先进硅基材料研究院 | Preparation method for preparing quartz ceramic by taking waste quartz glass as raw material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1686918A (en) * | 2005-04-29 | 2005-10-26 | 宜昌长江陶瓷有限责任公司 | Method for fabricating sanitary ceramics by using waste sand of quartz |
| CN103896524A (en) * | 2014-03-10 | 2014-07-02 | 山东建筑大学 | Method for producing autoclaved bricks from artificial stone plate wastes |
| CN104193177A (en) * | 2014-03-19 | 2014-12-10 | 广西科学院 | High-strength light-weight building material prepared by foaming waste quartz and preparation method thereof |
-
2015
- 2015-01-05 CN CN201510002369.0A patent/CN104649707B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1686918A (en) * | 2005-04-29 | 2005-10-26 | 宜昌长江陶瓷有限责任公司 | Method for fabricating sanitary ceramics by using waste sand of quartz |
| CN103896524A (en) * | 2014-03-10 | 2014-07-02 | 山东建筑大学 | Method for producing autoclaved bricks from artificial stone plate wastes |
| CN104193177A (en) * | 2014-03-19 | 2014-12-10 | 广西科学院 | High-strength light-weight building material prepared by foaming waste quartz and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747560A (en) * | 2016-12-05 | 2017-05-31 | 郑州丽福爱生物技术有限公司 | A kind of porous thermal insulating composite ceramic material |
| CN108911715A (en) * | 2018-08-06 | 2018-11-30 | 烟台大学 | A kind of closed cell foamed ceramics and preparation method thereof with hard and compact shell |
| CN108911715B (en) * | 2018-08-06 | 2021-05-28 | 烟台大学 | Closed-cell foamed ceramic with hard compact shell and preparation method thereof |
| CN109265136A (en) * | 2018-09-05 | 2019-01-25 | 东莞市正品五金电子有限公司 | A method of ceramics are produced using waste sand of quartz |
| CN112624745A (en) * | 2020-12-21 | 2021-04-09 | 南京工业大学东海先进硅基材料研究院 | Preparation method for preparing quartz ceramic by taking waste quartz glass as raw material |
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| CN104649707B (en) | 2016-06-29 |
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Effective date of registration: 20180719 Address after: 311225 Jiangdong three road 6515, Hangzhou, Zhejiang. Patentee after: Hangzhou Da he Jiangdong new Mstar Technology Ltd Address before: 310053 668, 777, BINKANG Road, Binjiang District, Hangzhou, Zhejiang. Patentee before: Hangzhou Daiwa Thermomagnetic Electronic Co., Ltd. |
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