CN102627460B - Manufacturing method of potassium hexatitanate whisker high-temperature thermal insulation material - Google Patents
Manufacturing method of potassium hexatitanate whisker high-temperature thermal insulation material Download PDFInfo
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- CN102627460B CN102627460B CN201010559985.3A CN201010559985A CN102627460B CN 102627460 B CN102627460 B CN 102627460B CN 201010559985 A CN201010559985 A CN 201010559985A CN 102627460 B CN102627460 B CN 102627460B
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Abstract
The invention discloses a manufacturing method of a potassium hexatitanate whisker high-temperature thermal insulation material, comprising the following steps of: mixing potassium hexatitanate whiskers with silica sol or a coupling agent, filling into a die, compacting into a moulded die blank, demoulding and drying, and placing into a high-temperature kiln for baking to obtain the finished product. The whole technological process is simple without pollution. According to the invention, specific excellent properties of the potassium hexatitanate whisker material such as high-temperature resistance, hydrochloric acid corrosion resistance, high mechanical strength, low coefficient of thermal conductivity and significant infrared reflectivity are well-maintained. The potassium hexatitanate whisker high-temperature thermal insulation material manufactured by the method is a thermal insulation material which has excellent quality as well as extensive applications.
Description
Technical field
The invention belongs to a kind of crystal whisker of hexa potassium titanate by inorganic salt whisker class and manufacture the method for novel heat insulation and preservation material
Background technology
Existing a kind of hard insulating material calcium silicate board, major ingredient is take silica flour and calcium powder material as main base material, take natural wooden fiber as strongthener, other subsidiary material of outer ginseng, starch after moulding by stream, at high temperature, a kind of material of construction that high-pressure curing generates, can pass through die production different shape.
Also having a kind of ceramic fiber cotton, is raw material through high purity aluminium oxide ground silica synthetic material, and through resistance furnace melting, jetting or getting rid of a fiber-forming process produces.Be a kind of soft material, can depend on and need the object of insulation outside by mechanical bend, form thermal insulation layer.
The shortcoming of above-mentioned two kinds of material of construction is that at high temperature easily efflorescence and buckling deformation of surface, affects heat insulation effect; In production process, HUMAN HEALTH is had to injury to a certain degree simultaneously.
Summary of the invention
The invention discloses a kind of manufacture method of crystal whisker of hexa potassium titanate heat-insulating heat-preserving material.A manufacture method for crystal whisker of hexa potassium titanate high-temperature heat insulation heat insulating material, is characterized in that, technical process is as follows:
1., crystal whisker of hexa potassium titanate and water are that 100: 0.5～10 ratio weighs and mixes by weight, and quietly after full and uniform stirring put infiltration, quiet 1～30 minute time that puts infiltration, become infiltration raw material;
2. be that 100: 15～45 ratio weighs and mixes by weight by above-mentioned infiltration raw material and silicon sol, and full and uniform stirring, base raw material become;
Or water and coupling agent are after 5～25: 1 dilution proportion by weight, then by weight mixing with the ratio of above-mentioned infiltration raw material 100: 2～20, and full and uniform stirring, base raw material become;
3. above-mentioned base raw material is filled out to the mould of putting into wooden or steel, adopt 100～400 tons of friction presses or vibration pressure machine or hydropress pressing die base, the volume density 1.5～1.8g/cm of mould base
3time just can the demoulding, and then the mould base of the demoulding is positioned in the drying room of 80～160 ℃ and dries and dry, make its water ratio≤13% become forming die blank;
4. above-mentioned forming die blank is positioned in high temperature kiln and dries and burn; dry burning temperature and be warmed up to gradually 1000 ℃ by 180 ℃; drying the burning time is to cease fire for 4～10 hours; treat in kiln that temperature chilling is down to 400～800 ℃ of≤80 ℃ of coolings naturally again, take out the manufacture finished product of the interior crystal whisker of hexa potassium titanate heat-insulating heat-preserving material of kiln.
Described silicon sol is the solvent containing silica dioxide granule; Described coupling agent is the solvent containing silicane, zirconium compounds class.
The whole technical process of the present invention is simple and easy and pollution-free.The crystal whisker of hexa potassium titanate heat-insulating heat-preserving material that the present invention manufactures, intact distinctive good high temperature resistant, the salt tolerant acid corrosion of crystal whisker of hexa potassium titanate material self, high mechanical strength, low thermal conductivity and the remarkable performance of infrared reflectance of having kept is broad-spectrum heat-insulating heat-preserving material best in quality.Its main technical details is compared with the prior art as follows,
The six potassium titanate products that processing method of the present invention is produced, its volume density, higher than other two lagging materials, represents that it has better mechanical property and intensity, has the good function that anti-extraneous mechanical property is impacted.From thermal conductivity, the thermal conductivity of other lagging material is that temperature is higher, and thermal conductivity presents ascendant trend; And six potassium titanate products at high temperature present lower thermal conductivity.The thermal conductivity of six potassium titanate products presents this unique phenomenon and is applicable to protecting for tight equipment and expensive device, avoid equipment because of vibrations, mechanical shock damaged; The ability that the molecular structure of its product penetrates opposing heat energy is very strong, in other words: heat energy is difficult to conduct by its product, has good heat and stores function.
The six potassium titanate products that processing method of the present invention is produced have very strong reflection potential for thermal radiation, by brick surface, reflect radiation heat are returned to heat source body, make the heat loss time lengthening of heat source body.
The six potassium titanate products that processing method of the present invention is produced can be applicable to need in the equipment or processing procedure of accurate red-tape operati temperature, the factory of particularly production expensive raw materials, such as: reactor for polycrystalline silicon.Also can be applicable to control the equipment of radiant heat and high energy accumulation of heat, the particularly boiler of nuclear power nuclear reaction device or thermoelectricity, adopt the alternative Radiological Defense of six potassium titanate products and insulated heat metallic reflection device, greatly reduce costs.In processing method production process of the present invention to HUMAN HEALTH without injury.
Embodiment
Embodiment 1
1., crystal whisker of hexa potassium titanate and water are that the ratio of 100: 0.5 weighs and mixes by weight, and quietly after full and uniform stirring put infiltration, the quiet 30 minutes time that puts infiltration, become infiltration raw material;
2. the ratio weighing that by above-mentioned infiltration raw material and silicon sol is by weight 100: 45 mixes, and full and uniform stirring, becomes base raw material;
Or water and coupling agent are after the dilution proportion of 25: 1 by weight, then by weight mixing with the above-mentioned infiltration raw material ratio of 100: 20, and full and uniform stirring, base raw material become;
3. above-mentioned base raw material is filled out to the mould of putting into wooden or steel, adopt 100 tons of friction press pressing die bases, just can the demoulding when volume density 1.5g/cm3 of mould base, and then the mould base of the demoulding is positioned in the drying room of 80 ℃ and dries and dry, make its water ratio≤13% become forming die blank;
4. above-mentioned forming die blank is positioned in high temperature kiln and dries and burn; dry burning temperature and be warmed up to gradually 1000 ℃ by 180 ℃; drying the burning time is to cease fire for 4 hours, treats in kiln that temperature chilling is down to 400 ℃ of≤80 ℃ of coolings naturally again, takes out the manufacture finished product of the interior crystal whisker of hexa potassium titanate heat-insulating heat-preserving material of kiln.
Described silicon sol is the solvent containing silica dioxide granule; Described coupling agent is the solvent containing silicane.
Described high temperature kiln is the high temperature kiln using electric energy as thermal source.
Embodiment 2
1., crystal whisker of hexa potassium titanate and water are that the ratio of 100: 10 weighs and mixes by weight, and quietly after full and uniform stirring put infiltration, the quiet 1 minute time that puts infiltration, become infiltration raw material;
2. the ratio weighing that by above-mentioned infiltration raw material and silicon sol is by weight 100: 15 mixes, and full and uniform stirring, becomes base raw material;
Or water and coupling agent are after the dilution proportion of 5: 1 by weight, then by weight mixing with the above-mentioned infiltration raw material ratio of 100: 2, and full and uniform stirring, base raw material become;
3. above-mentioned base raw material is filled out to the mould of putting into wooden or steel, adopt 400 tons of vibration pressure machine pressing die bases, the volume density 1.8g/cm of mould base
3time just can the demoulding, and then the mould base of the demoulding is positioned in the drying room of 160 ℃ and dries and dry, make its water ratio≤13% become forming die blank;
4. above-mentioned forming die blank is positioned in high temperature kiln and dries and burn; dry burning temperature and be warmed up to gradually 1000 ℃ by 180 ℃; drying the burning time is to cease fire for 10 hours, treats in kiln that temperature chilling is down to 800 ℃ of≤80 ℃ of coolings naturally again, takes out the manufacture finished product of the interior crystal whisker of hexa potassium titanate heat-insulating heat-preserving material of kiln.
Described silicon sol is the solvent containing silica dioxide granule; Described coupling agent is the solvent of zirconium compounds class.
Described high temperature kiln is the high temperature kiln using natural gas energy resource as thermal source.
Embodiment 3
A manufacture method for crystal whisker of hexa potassium titanate high-temperature heat insulation heat insulating material, technical process is as follows:
1., crystal whisker of hexa potassium titanate and water are that the ratio of 100: 5 weighs and mixes by weight, and quietly after full and uniform stirring put infiltration, the quiet 15 minutes time that puts infiltration, become infiltration raw material;
2. the ratio weighing that by above-mentioned infiltration raw material and silicon sol is by weight 100: 30 mixes, and full and uniform stirring, becomes base raw material;
Or water and coupling agent are after the dilution proportion of 15: 1 by weight, then by weight mixing with the above-mentioned infiltration raw material ratio of 100: 10, and full and uniform stirring, base raw material become;
3. above-mentioned base raw material is filled out to the mould of putting into wooden or steel, adopt 250 t hydraulic press pressing die bases, the volume density 1.6g/cm of mould base
3time just can the demoulding, and then the mould base of the demoulding is positioned in the drying room of 120 ℃ and dries and dry, make its water ratio≤13% become forming die blank;
4. above-mentioned forming die blank is positioned in high temperature kiln and dries and burn; dry burning temperature and be warmed up to gradually 1000 ℃ by 180 ℃; drying the burning time is to cease fire for 8 hours, treats in kiln that temperature chilling is down to 600 ℃ of≤80 ℃ of coolings naturally again, takes out the manufacture finished product of the interior crystal whisker of hexa potassium titanate heat-insulating heat-preserving material of kiln.
Described silicon sol is the solvent containing silica dioxide granule; Described coupling agent is the solvent of zirconium compounds class.
Described high temperature kiln is the high temperature kiln using the coal energy as thermal source.
Claims (3)
1. a manufacture method for crystal whisker of hexa potassium titanate high-temperature heat insulation heat insulating material, is characterized in that, technical process is as follows:
1. crystal whisker of hexa potassium titanate and water weigh and mix by weight the ratio for 100:0.5～10, and quietly after full and uniform stirring put infiltration, quiet 1～30 minute time that puts infiltration, become infiltration raw material;
2. above-mentioned infiltration raw material is weighed and mixed by weight the ratio for 100:15～45 with silicon sol, and full and uniform stirring, base raw material become;
Or, after water and coupling agent are the dilution proportion of 5～25:1 by weight, then by weight mixing with the ratio of above-mentioned infiltration raw material 100:2～20, and full and uniform stirring, base raw material become;
3. above-mentioned base raw material is filled out to the mould of putting into wooden or steel, adopt 100～400 tons of friction presses or vibration pressure machine or hydropress pressing die base, the volume density 1.5～1.8g/cm of mould base
3time just can the demoulding, and then the mould base of the demoulding is positioned in the drying room of 80～160 ℃ and dries and dry, make its water ratio≤13% become forming die blank;
4. above-mentioned forming die blank is positioned in high temperature kiln and dries and burn; dry burning temperature and be warmed up to gradually 1000 ℃ by 180 ℃; drying the burning time is to cease fire for 4 ~ 10 hours; treat in kiln that temperature chilling is down to 400 ~ 800 ℃ of≤80 ℃ of coolings naturally again, take out the manufacture finished product of the interior crystal whisker of hexa potassium titanate heat-insulating heat-preserving material of kiln.
2. by the manufacture method of a kind of crystal whisker of hexa potassium titanate high-temperature heat insulation heat insulating material claimed in claim 1, it is characterized in that, described silicon sol is the solvent containing silica dioxide granule; Described coupling agent is the solvent containing silicane, zirconium compounds class.
3. by the manufacture method of a kind of crystal whisker of hexa potassium titanate high-temperature heat insulation heat insulating material described in claim 1 or 2, it is characterized in that, described high temperature kiln is the high temperature kiln using coal or electricity or Sweet natural gas as thermal source.
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| CN201010559985.3A CN102627460B (en) | 2010-11-25 | 2010-11-25 | Manufacturing method of potassium hexatitanate whisker high-temperature thermal insulation material |
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| CN102627460B true CN102627460B (en) | 2014-07-02 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103342571B (en) * | 2013-07-10 | 2014-12-03 | 武汉理工大学 | Preparation method of potassium hexatitanate whisker heat insulation and heat preservation material |
| CN103803934B (en) * | 2013-12-23 | 2016-06-22 | 中国建筑材料科学研究总院 | A kind of nano silicon oxide heat-insulating heat-preserving material and normal temperature drying wet processing preparation method thereof |
| CN104944987B (en) * | 2015-06-23 | 2017-03-29 | 武汉科技大学 | High infrared reflection rate high-alumina lightening flame-proof thermal insulation material and preparation method thereof |
| CN107162559A (en) * | 2017-06-16 | 2017-09-15 | 成都市容德建筑劳务有限公司 | A kind of mixed mud of heat-insulating |
| CN109535815A (en) * | 2018-12-17 | 2019-03-29 | 安徽升鸿电子有限公司 | A kind of preparation method of potassium titanate crystal whisker insulating moulding coating additive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772712A (en) * | 2005-10-11 | 2006-05-17 | 山东大学 | Composite heat insulating aluminium silicate fiber/potassium hexatitanate whisker material and its prepn |
| CN101456720A (en) * | 2009-01-08 | 2009-06-17 | 东莞市康达机电工程有限公司 | Method for preparing potassium hexatitanate whisker composite SiO2 aerogel heat insulating material |
| CN101671196A (en) * | 2009-09-23 | 2010-03-17 | 北京航空航天大学 | Preparation method of carbon foam heat insulating material added with potassium hexatitanate whiskers |
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- 2010-11-25 CN CN201010559985.3A patent/CN102627460B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772712A (en) * | 2005-10-11 | 2006-05-17 | 山东大学 | Composite heat insulating aluminium silicate fiber/potassium hexatitanate whisker material and its prepn |
| CN101456720A (en) * | 2009-01-08 | 2009-06-17 | 东莞市康达机电工程有限公司 | Method for preparing potassium hexatitanate whisker composite SiO2 aerogel heat insulating material |
| CN101671196A (en) * | 2009-09-23 | 2010-03-17 | 北京航空航天大学 | Preparation method of carbon foam heat insulating material added with potassium hexatitanate whiskers |
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