CN102627460A - 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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- CN102627460A CN102627460A CN2010105599853A CN201010559985A CN102627460A CN 102627460 A CN102627460 A CN 102627460A CN 2010105599853 A CN2010105599853 A CN 2010105599853A CN 201010559985 A CN201010559985 A CN 201010559985A CN 102627460 A CN102627460 A CN 102627460A
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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 method of making the novel heat insulation and preservation material with the crystal whisker of hexa potassium titanate of inorganic salt whisker class
Background technology
Existing a kind of hard insulating material calcium silicate board; Major ingredient is to be main base material with silica flour and calcium powder material, is strongthener with the natural wooden fiber, joins other subsidiary material outward; After the moulding of stream slurry; At high temperature, a kind of material of construction that high-pressure curing generates can pass through the 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 the resistance furnace fusion, jetting or getting rid of silk becomes fine explained hereafter to form.Be a kind of soft material, can depend on the object outside that needs insulation, form thermal insulation layer through mechanical bend.
The shortcoming of above-mentioned two kinds of material of construction is that surface efflorescence and buckling deformation easily at high temperature influences heat insulation effect; In the production process HUMAN HEALTH there is injury to a certain degree simultaneously.
Summary of the invention
The invention discloses a kind of method of manufacture of crystal whisker of hexa potassium titanate heat-insulation and heat-preservation material.A kind of method of manufacture of crystal whisker of hexa potassium titanate high-temperature heat insulation heat insulating material is characterized in that, technical process is following:
1., crystal whisker of hexa potassium titanate mixes by weight the ratio weighing that is 100: 0.5～10 with water, and the back quiet infiltration of putting of full and uniform stirring, quiet 1～30 minute time that puts infiltration, becomes the infiltration raw material;
2. above-mentioned infiltration raw material is mixed by weight the ratio weighing that is 100: 15～45 with silicon sol, and full and uniform stirring, the base raw material become;
Or, water and coupling agent after be 5～25: 1 dilution proportion, again by weight with the mixed of above-mentioned infiltration raw material 100: 2～20, and full and uniform stirring becomes the base raw material;
3. above-mentioned base raw material is filled out 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
3But the time the just demoulding, and then the mould base of the demoulding is positioned over dry in 80～160 ℃ the drying room and dries, make its water ratio≤13% become the shaping mould base;
4. above-mentioned shaping mould base is positioned over baking burning in the high temperature kiln; Baking is burnt temperature and is warmed up to 1000 ℃ gradually by 180 ℃; The baking burning time is truce in 4～10 hours; Treat in the kiln that the temperature chilling reduces to 400～800 ℃ of≤80 ℃ of coolings naturally again, take out the manufacturing finished product of the interior crystal whisker of hexa potassium titanate heat-insulation and heat-preservation material of kiln.
Described silicon sol is the solvent that contains silica dioxide granule; Described coupling agent is the solvent of siliceous alkanes, zirconium compounds class.
Whole process flow of the present invention is simple and easy and pollution-free.The crystal whisker of hexa potassium titanate heat-insulation and heat-preservation material that the present invention makes; 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 ir reflectance of having kept is broad-spectrum heat-insulation and heat-preservation material best in quality.It is following with prior art its main technical details relatively,
The six potassium titanate products that process method of the present invention is produced, its volume density is higher than other two lagging materials, representes that it has better mechanical property and intensity, has the anti-ballistic function well of extraneous mechanical property.See that from thermal conductivity the thermal conductivity of other lagging material is that temperature is high more, thermal conductivity then 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 fit to protect for tight equipment and expensive device, avoids equipment to be damaged because of vibrations, physical shock; The molecular structure of its product is very strong to the ability that opposing heat energy penetrates, and in other words: heat energy is difficult to have good heat and store function through its product conduction.
The six potassium titanate products that process method of the present invention is produced have very strong reflection potential for thermal radiation, through the brick surface reflect radiation heat are returned heat source body, make the lost time lengthening of heat of heat source body.
The six potassium titanate products that process method of the present invention is produced need can be applicable 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.Need also to can be applicable to the equipment, the particularly boiler of nuclear power nuclear reaction device or thermoelectricity of control radiogenic heat and high energy accumulation of heat, adopt alternative Radiological Defense of six potassium titanate products and insulated heat metallic reflection device, reduce cost greatly.In the process method production process of the present invention HUMAN HEALTH there is not injury.
Embodiment
Embodiment 1
1., crystal whisker of hexa potassium titanate mixes by weight the ratio weighing that is 100: 0.5 with water, and the back quiet infiltration of putting of full and uniform stirring, the quiet 30 minutes time that puts infiltration, becomes the infiltration raw material;
2. above-mentioned infiltration raw material is mixed by weight the ratio weighing that is 100: 45 with silicon sol, and full and uniform stirring, the base raw material become;
Or, water and coupling agent after be 25: 1 dilution proportion, again by weight with 100: 20 mixed of above-mentioned infiltration raw material, and full and uniform stirring becomes the base raw material;
3. above-mentioned base raw material is filled out the mould of putting into wooden or steel; Adopt 100 tons of friction press pressing die bases; But the just demoulding during volume density 1.5g/cm3 of mould base, and then the mould base of the demoulding is positioned over dry in 80 ℃ the drying room and dries, make its water ratio≤13% become the shaping mould base;
4. above-mentioned shaping mould base is positioned over baking burning in the high temperature kiln; Baking is burnt temperature and is warmed up to 1000 ℃ gradually by 180 ℃; Baking is to cease fire in 4 hours the burning time, treats in the kiln that the temperature chilling reduces to 400 ℃ of≤80 ℃ of coolings naturally again, takes out the manufacturing finished product of the interior crystal whisker of hexa potassium titanate heat-insulation and heat-preservation material of kiln.
Described silicon sol is the solvent that contains silica dioxide granule; Described coupling agent is the solvent of siliceous alkanes.
Described high temperature kiln is with the high temperature kiln of electric energy as thermal source.
Embodiment 2
1., crystal whisker of hexa potassium titanate mixes by weight the ratio weighing that is 100: 10 with water, and the back quiet infiltration of putting of full and uniform stirring, the quiet 1 minute time that puts infiltration, becomes the infiltration raw material;
2. above-mentioned infiltration raw material is mixed by weight the ratio weighing that is 100: 15 with silicon sol, and full and uniform stirring, the base raw material become;
Or, water and coupling agent after be 5: 1 dilution proportion, again by weight with 100: 2 mixed of above-mentioned infiltration raw material, and full and uniform stirring becomes the base raw material;
3. above-mentioned base raw material is filled out 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
3But the time the just demoulding, and then the mould base of the demoulding is positioned over dry in 160 ℃ the drying room and dries, make its water ratio≤13% become the shaping mould base;
4. above-mentioned shaping mould base is positioned over baking burning in the high temperature kiln; Baking is burnt temperature and is warmed up to 1000 ℃ gradually by 180 ℃; Baking is to cease fire in 10 hours the burning time, treats in the kiln that the temperature chilling reduces to 800 ℃ of≤80 ℃ of coolings naturally again, takes out the manufacturing finished product of the interior crystal whisker of hexa potassium titanate heat-insulation and heat-preservation material of kiln.
Described silicon sol is the solvent that contains silica dioxide granule; Described coupling agent is the solvent of zirconium compounds class.
Described high temperature kiln is with the high temperature kiln of natural gas energy resource as thermal source.
Embodiment 3
A kind of method of manufacture of crystal whisker of hexa potassium titanate high-temperature heat insulation heat insulating material, technical process is following:
1., crystal whisker of hexa potassium titanate mixes by weight the ratio weighing that is 100: 5 with water, and the back quiet infiltration of putting of full and uniform stirring, the quiet 15 minutes time that puts infiltration, becomes the infiltration raw material;
2. above-mentioned infiltration raw material is mixed by weight the ratio weighing that is 100: 30 with silicon sol, and full and uniform stirring, the base raw material become;
Or, water and coupling agent after be 15: 1 dilution proportion, again by weight with 100: 10 mixed of above-mentioned infiltration raw material, and full and uniform stirring becomes the base raw material;
3. above-mentioned base raw material is filled out 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
3But the time the just demoulding, and then the mould base of the demoulding is positioned over dry in 120 ℃ the drying room and dries, make its water ratio≤13% become the shaping mould base;
4. above-mentioned shaping mould base is positioned over baking burning in the high temperature kiln; Baking is burnt temperature and is warmed up to 1000 ℃ gradually by 180 ℃; Baking is to cease fire in 8 hours the burning time, treats in the kiln that the temperature chilling reduces to 600 ℃ of≤80 ℃ of coolings naturally again, takes out the manufacturing finished product of the interior crystal whisker of hexa potassium titanate heat-insulation and heat-preservation material of kiln.
Described silicon sol is the solvent that contains silica dioxide granule; Described coupling agent is the solvent of zirconium compounds class.
Described high temperature kiln is with the high temperature kiln of the coal energy as thermal source.
Claims (3)
1. the method for manufacture of a crystal whisker of hexa potassium titanate high-temperature heat insulation heat insulating material is characterized in that, technical process is following:
1., crystal whisker of hexa potassium titanate mixes by weight the ratio weighing that is 100: 0.5～10 with water, and the back quiet infiltration of putting of full and uniform stirring, quiet 1～30 minute time that puts infiltration, becomes the infiltration raw material;
2. above-mentioned infiltration raw material is mixed by weight the ratio weighing that is 100: 15～45 with silicon sol, and full and uniform stirring, the base raw material become;
Or, water and coupling agent after be 5～25: 1 dilution proportion, again by weight with the mixed of above-mentioned infiltration raw material 100: 2～20, and full and uniform stirring becomes the base raw material;
3. above-mentioned base raw material is filled out 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
3But the time the just demoulding, and then the mould base of the demoulding is positioned over dry in 80～160 ℃ the drying room and dries, make its water ratio≤13% become the shaping mould base;
4. above-mentioned shaping mould base is positioned over baking burning in the high temperature kiln; Baking is burnt temperature and is warmed up to 1000 ℃ gradually by 180 ℃; The baking burning time is truce in 4～10 hours; Treat in the kiln that the temperature chilling reduces to 400～800 ℃ of≤80 ℃ of coolings naturally again, take out the manufacturing finished product of the interior crystal whisker of hexa potassium titanate heat-insulation and heat-preservation material of kiln.
2. by the method for manufacture of the described a kind of crystal whisker of hexa potassium titanate high-temperature heat insulation heat insulating material of claim 1, it is characterized in that described silicon sol is the solvent that contains silica dioxide granule; Described coupling agent is the solvent of siliceous alkanes, zirconium compounds class.
3. by the method for manufacture of claim 1 or 2 described a kind of crystal whisker of hexa potassium titanate high-temperature heat insulation heat insulating materials, it is characterized in that described high temperature kiln is with coal or electricity or the Sweet natural gas equal energy source high temperature kiln as thermal source.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342571A (en) * | 2013-07-10 | 2013-10-09 | 武汉理工大学 | Preparation method of potassium hexatitanate whisker heat insulation and heat preservation material |
| CN103803934A (en) * | 2013-12-23 | 2014-05-21 | 中国建筑材料科学研究总院 | Nanosized silica thermal insulation material and preparation method based on normal-temperature drying wet process thereof |
| CN104944987A (en) * | 2015-06-23 | 2015-09-30 | 武汉科技大学 | High-infrared reflectivity high-aluminum light fire-resistant thermal insulating 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 |
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| 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
- 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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342571A (en) * | 2013-07-10 | 2013-10-09 | 武汉理工大学 | Preparation method of potassium hexatitanate whisker heat insulation and heat preservation material |
| 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 |
| CN103803934A (en) * | 2013-12-23 | 2014-05-21 | 中国建筑材料科学研究总院 | Nanosized silica thermal insulation material and preparation method based on normal-temperature drying wet process thereof |
| 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 |
| CN104944987A (en) * | 2015-06-23 | 2015-09-30 | 武汉科技大学 | High-infrared reflectivity high-aluminum light fire-resistant thermal insulating material and 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 |
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| CN102627460B (en) | 2014-07-02 |
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