CN107740178A - A kind of crystal whisker of hexa potassium titanate heat-barrier material and preparation method thereof - Google Patents
A kind of crystal whisker of hexa potassium titanate heat-barrier material and preparation method thereof Download PDFInfo
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- CN107740178A CN107740178A CN201711145651.XA CN201711145651A CN107740178A CN 107740178 A CN107740178 A CN 107740178A CN 201711145651 A CN201711145651 A CN 201711145651A CN 107740178 A CN107740178 A CN 107740178A
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B1/00—Single-crystal growth directly from the solid state
- C30B1/02—Single-crystal growth directly from the solid state by thermal treatment, e.g. strain annealing
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/16—Oxides
- C30B29/22—Complex oxides
- C30B29/32—Titanates; Germanates; Molybdates; Tungstates
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/60—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape characterised by shape
- C30B29/62—Whiskers or needles
Abstract
The present invention relates to a kind of crystal whisker of hexa potassium titanate heat-barrier material and preparation method thereof.Its technical scheme is：By titaniferous waste material in 1000 ~ 1300 DEG C of heat treatments, grinding, grinding material A is obtained.50 ~ 70wt% grinding material A, 10 ~ 20wt% titanium dioxide and 10 ~ 30wt% thermosetting resin are mixed, it is compressing；It is heat-treated in 1200 ~ 1400 DEG C and reducing atmosphere, crushes, grinding, obtain grinding material B.40 ~ 60wt% grinding material B, 10 ~ 30wt% Anhydrous potassium carbonate and 10 ~ 30wt% potassium acetate are mixed, grinding, obtain abrasive.10 ~ 20wt% grinding material B, 30 ~ 50wt% abrasive, 10 ~ 30wt% limestone particle, 10 ~ 20wt% quartz sand particle and 1 ~ 10wt% thermosetting resin are mixed, it is compressing；First it is heat-treated respectively after 600 ~ 800 DEG C and 900 ~ 1100 DEG C, crystal whisker of hexa potassium titanate heat-barrier material is made.Present invention process is simple and production cost is low, and made product thermal conductivity factor is low, compressive resistance is big and bulk density is small.
Description
Technical field
The invention belongs to crystal whisker of hexa potassium titanate technical field.More particularly to a kind of crystal whisker of hexa potassium titanate heat-barrier material and its system
Preparation Method.
Background technology
It is steady to make it have excellent high intensity, high temperature resistant, chemistry because of the chain tunnel structure of uniqueness for crystal whisker of hexa potassium titanate
The characteristic such as qualitative, insulating properties and infrared reflectivity height, thus led in heat-barrier material, reinforcing material, friction material, filtering material etc.
It is used widely in domain.Current preparation method mainly has flux growth metrhod, melting-quenching method, combustion method, hydro-thermal method, sintering process
Deng, though the above method each has the advantages of different, all come with some shortcomings, such as：Though whisker prepared by flux growth metrhod is long
Footpath is more controllable than big and size, but the impurity introduced by fluxing agent is easily mingled with the product, it is difficult to remove the property for totally, influenceing whisker
Energy；Melting-quenching method needs, after raw material high-temperature fusion, quenching, subsequent material to be passed through into multiple high temp calcination processing, is made
Whisker easy conglomeration and blocking in crystallization process, energy consumption is big, and production cost is too high；Hydro-thermal method needs HTHP, condition
It is harsh；The problems such as whisker size is whard to control, whisker separation is difficult be present in sintering rule.
Crystal whisker of hexa potassium titanate heat-barrier material is the heat-barrier material prepared using crystal whisker of hexa potassium titanate as primary raw material, because exist with
Lower deficiency makes its application be affected：(1) additive, bonding agent or the filler introduced in preparation process is mostly organic matter, in product
During preparation and use, the discharge of poisonous or pollution gas is produced due to decomposing, aoxidizing, influences environment；(2) whisker
Mixing, be molded, in sintering process with other raw materials, it is difficult to be uniformly dispersed in system, easily reuniting, and mixing or stirring
During, whisker is easily fractureed by mechanical device, and then influences the performance of material；(3) in product preparation process, it is formed in situ
Whisker, size and distribution are difficult effectively control, and then can not realize the optimization of material heat-proof quality.
In recent years, with the fast development of the industries such as chemical industry, biology, the purposes of titanium and its compound is more and more wider, is producing
Caused titaniferous waste material is also more and more during product production and use, how efficiently to utilize titaniferous waste material, turns into one very
Important and urgent research work.Currently, it is more for the recoverying and utilizing method of titaniferous waste material development, such as pass through congruent melting, chemistry
The technique recovery Pds such as leaching, crystallization and calcining, though known progress is achieved, the existing most complex process of technical method,
And it can still produce secondary slugs after extracting titanium.
The content of the invention
It is contemplated that overcome the deficiencies in the prior art, it is therefore an objective to provide that a kind of production cost is low, technique is simple and without two
The preparation method of crystal whisker of hexa potassium titanate heat-barrier material caused by secondary waste material, the crystal whisker of hexa potassium titanate heat-barrier material prepared with this method
With thermal conductivity factor is low, compressive resistance is big and bulk density is small.
To achieve the above object, the step of the technical solution adopted by the present invention is：
The first step, titaniferous waste material being heat-treated 2 ~ 4 hours under the conditions of 1000 ~ 1300 DEG C, grinding to granularity is less than 0.045mm,
Obtain grinding material A.
Second step, grinding material A, 10 ~ 20wt% titanium dioxide and the 10 ~ 30wt% thermosetting resin by 50 ~ 70wt%
It is well mixed, it is compressing under the conditions of 50 ~ 100MPa；1 ~ 3 is heat-treated under the conditions of 1200 ~ 1400 DEG C and in reducing atmosphere
Hour, crush, grinding to granularity is less than 0.088mm, obtains grinding material B.
3rd step, grinding material B, 10 ~ 30wt% Anhydrous potassium carbonate and the 10 ~ 30wt% potassium acetate by 40 ~ 60wt%
It is well mixed, grind 0.5 ~ 1 hour, obtain abrasive.
4th step, by the 10 ~ 20wt% grinding material B, the 30 ~ 50wt% abrasive, 10 ~ 30wt% lime stone
The thermosetting resin of particle, 10 ~ 20wt% quartz sand particle and 1 ~ 10wt% is well mixed, and is suppressed under the conditions of 50 ~ 100MPa
Shaping；Then it is heat-treated 1 ~ 3 hour under the conditions of 600 ~ 800 DEG C, is heat-treated 1 ~ 3 hour under the conditions of 900 ~ 1100 DEG C, is made
Obtain crystal whisker of hexa potassium titanate heat-barrier material.
The titaniferous waste material：Ti contents are more than 52wt%, and Al, Ni, V, Co, Cr, Ca, Si content sum are less than 0.9wt%；
The grain graininess of titaniferous waste material is less than 0.088mm.
The granularity of the titanium dioxide is less than 0.088mm；TiO in the titanium dioxide2Content be more than 99wt%.
The reducing atmosphere is hydrogen atmosphere or is carbon monoxide atmosphere.
The granularity of the Anhydrous potassium carbonate is less than 0.088mm；K in the Anhydrous potassium carbonate2CO3Content be more than 99wt%.
The granularity of the potassium acetate is less than 0.088mm, and the purity of the potassium acetate is more than 99wt%.
The granularity of the limestone particle is 0.088 ~ 0.25mm, and CaO content is more than 54wt% in the lime stone.
The granularity of the quartz sand particle is 0.088 ~ 0.25mm, SiO in the quartz sand2Content be more than 98wt%.
Due to there is following good effect compared with prior art using above-mentioned technical proposal, the present invention：
(1) the present invention is on the Research foundation for accompanying temperature evolution to the composition of titaniferous waste material, structure and thing, by the preparation of product
Process substep controls：The regulation of raw material character, formation interphase and material microstructure are formed.By the granularity of considered critical raw material,
The technical parameter of the preparation process such as granularity, treatment temperature, processing time and the atmosphere of intermediate product, tied for crystal whisker of hexa potassium titanate
Formation in structure provides necessary requirement with being uniformly distributed, thus makes the heat conduction system of prepared crystal whisker of hexa potassium titanate heat-barrier material
Number is low, compressive resistance is big and bulk density is small.
(2) the present invention is using titaniferous waste material as primary raw material, then is equipped with titanium dioxide, thermosetting resin, Anhydrous potassium carbonate, lime
The common raw material of the industry such as stone and quartz sand, preparation process substep is controlled, energy consumption and thing caused by both having reduced high-temperature process
Material loss, and corresponding different phase is formed to whisker heat-barrier material micro-structural and has carried out accurate adjustment, realize product
The Balance route of energy, preparation process energy consumption and Material Cost.Therefore, the raw material sources that the present invention not only uses are extensive, Er Qiesheng
Production. art is simple, production cost is low and is produced without secondary slugs.
Crystal whisker of hexa potassium titanate heat-barrier material prepared by the present invention is after testing：200 ~ 1000 DEG C of thermal conductivity factor be 0.014 ~
0.035W/(m·K)；Cold crushing strength is more than 5MPa；Bulk density is less than 0.5g/cm3。
Therefore, the present invention has the characteristics of technique is simple, production cost is low and is produced without secondary slugs, six prepared titaniums
Sour potassium whisker heat-barrier material thermal conductivity factor is low, compressive resistance is big and bulk density is small.
Embodiment
With reference to embodiment, the present invention will be further described, not to the limitation of its protection domain.
It is first that the raw material Unify legislation of present embodiment is as follows to avoid repeating, repeated no more in each embodiment：
The titaniferous waste material：Ti contents are more than 52wt%, and Al, Ni, V, Co, Cr, Ca, Si content sum are less than 0.9wt%；Titaniferous
The grain graininess of waste material is less than 0.088mm.
The granularity of the titanium dioxide is less than 0.088mm；TiO in the titanium dioxide2Content be more than 99wt%.
The granularity of the Anhydrous potassium carbonate is less than 0.088mm；K in the Anhydrous potassium carbonate2CO3Content be more than 99wt%.
The granularity of the potassium acetate is less than 0.088mm, and the purity of the potassium acetate is more than 99wt%.
The granularity of the limestone particle is 0.088 ~ 0.25mm, and CaO content is more than 54wt% in the lime stone.
The granularity of the quartz sand particle is 0.088 ~ 0.25mm, SiO in the quartz sand2Content be more than 98wt%.
Embodiment 1
A kind of crystal whisker of hexa potassium titanate heat-barrier material and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step, titaniferous waste material being heat-treated 2 ~ 4 hours under the conditions of 1000 ~ 1300 DEG C, grinding to granularity is less than 0.045mm,
Obtain grinding material A.
Second step, grinding material A, 10 ~ 20wt% titanium dioxide and the 20 ~ 30wt% thermosetting resin by 50 ~ 60wt%
It is well mixed, it is compressing under the conditions of 50 ~ 100MPa；1 ~ 3 is heat-treated under the conditions of 1200 ~ 1400 DEG C and in reducing atmosphere
Hour, crush, grinding to granularity is less than 0.088mm, obtains grinding material B.
3rd step, grinding material B, 20 ~ 30wt% Anhydrous potassium carbonate and the 20 ~ 30wt% potassium acetate by 40 ~ 50wt%
It is well mixed, grind 0.5 ~ 1 hour, obtain abrasive.
4th step, by the 10 ~ 20wt% grinding material B, the 40 ~ 50wt% abrasive, 10 ~ 20wt% lime stone
The thermosetting resin of particle, 10 ~ 20wt% quartz sand particle and 1 ~ 10wt% is well mixed, and is suppressed under the conditions of 50 ~ 100MPa
Shaping；Then it is heat-treated 1 ~ 3 hour under the conditions of 600 ~ 800 DEG C, is heat-treated 1 ~ 3 hour under the conditions of 900 ~ 1100 DEG C, is made
Obtain crystal whisker of hexa potassium titanate heat-barrier material.
The reducing atmosphere is hydrogen atmosphere.
Crystal whisker of hexa potassium titanate heat-barrier material manufactured in the present embodiment is after testing：200 ~ 1000 DEG C of thermal conductivity factor be 0.014 ~
0.032W/(m·K)；Cold crushing strength is more than 8MPa；Bulk density is less than 0.5g/cm3。
Embodiment 2
A kind of crystal whisker of hexa potassium titanate heat-barrier material and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step, titaniferous waste material being heat-treated 2 ~ 4 hours under the conditions of 1000 ~ 1300 DEG C, grinding to granularity is less than 0.045mm,
Obtain grinding material A.
Second step, grinding material A, 10 ~ 20wt% titanium dioxide and the 10 ~ 20wt% thermosetting resin by 60 ~ 70wt%
It is well mixed, it is compressing under the conditions of 50 ~ 100MPa；1 ~ 3 is heat-treated under the conditions of 1200 ~ 1400 DEG C and in reducing atmosphere
Hour, crush, grinding to granularity is less than 0.088mm, obtains grinding material B.
3rd step, grinding material B, 10 ~ 20wt% Anhydrous potassium carbonate and the 20 ~ 30wt% potassium acetate by 50 ~ 60wt%
It is well mixed, grind 0.5 ~ 1 hour, obtain abrasive.
4th step, by the 10 ~ 20wt% grinding material B, the 30 ~ 40wt% abrasive, 20 ~ 30wt% lime stone
The thermosetting resin of particle, 10 ~ 20wt% quartz sand particle and 1 ~ 10wt% is well mixed, and is suppressed under the conditions of 50 ~ 100MPa
Shaping；Then it is heat-treated 1 ~ 3 hour under the conditions of 600 ~ 800 DEG C, is heat-treated 1 ~ 3 hour under the conditions of 900 ~ 1100 DEG C, is made
Obtain crystal whisker of hexa potassium titanate heat-barrier material.
The reducing atmosphere is carbon monoxide atmosphere.
Crystal whisker of hexa potassium titanate heat-barrier material prepared by the present invention is after testing：200 ~ 1000 DEG C of thermal conductivity factor be 0.014 ~
0.035W/(m·K)；Cold crushing strength is more than 8MPa；Bulk density is less than 0.45g/cm3。
Embodiment 3
A kind of crystal whisker of hexa potassium titanate heat-barrier material and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step, titaniferous waste material being heat-treated 2 ~ 4 hours under the conditions of 1000 ~ 1300 DEG C, grinding to granularity is less than 0.045mm,
Obtain grinding material A.
Second step, grinding material A, 10 ~ 20wt% titanium dioxide and the 20 ~ 30wt% thermosetting resin by 50 ~ 60wt%
It is well mixed, it is compressing under the conditions of 50 ~ 100MPa；1 ~ 3 is heat-treated under the conditions of 1200 ~ 1400 DEG C and in reducing atmosphere
Hour, crush, grinding to granularity is less than 0.088mm, obtains grinding material B.
3rd step, grinding material B, 20 ~ 30wt% Anhydrous potassium carbonate and the 10 ~ 20wt% potassium acetate by 50 ~ 60wt%
It is well mixed, grind 0.5 ~ 1 hour, obtain abrasive.
4th step, by the 10 ~ 20wt% grinding material B, the 40 ~ 50wt% abrasive, 10 ~ 20wt% lime stone
The thermosetting resin of particle, 10 ~ 20wt% quartz sand particle and 1 ~ 10wt% is well mixed, and is suppressed under the conditions of 50 ~ 100MPa
Shaping；Then it is heat-treated 1 ~ 3 hour under the conditions of 600 ~ 800 DEG C, is heat-treated 1 ~ 3 hour under the conditions of 900 ~ 1100 DEG C, is made
Obtain crystal whisker of hexa potassium titanate heat-barrier material.
The reducing atmosphere is hydrogen atmosphere.
Crystal whisker of hexa potassium titanate heat-barrier material prepared by the present invention is after testing：200 ~ 1000 DEG C of thermal conductivity factor be 0.019 ~
0.035W/(m·K)；Cold crushing strength is more than 7MPa；Bulk density is less than 0.45g/cm3。
Embodiment 4
A kind of crystal whisker of hexa potassium titanate heat-barrier material and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step, titaniferous waste material being heat-treated 2 ~ 4 hours under the conditions of 1000 ~ 1300 DEG C, grinding to granularity is less than 0.045mm,
Obtain grinding material A.
Second step, grinding material A, 10 ~ 20wt% titanium dioxide and the 10 ~ 20wt% thermosetting resin by 60 ~ 70wt%
It is well mixed, it is compressing under the conditions of 50 ~ 100MPa；1 ~ 3 is heat-treated under the conditions of 1200 ~ 1400 DEG C and in reducing atmosphere
Hour, crush, grinding to granularity is less than 0.088mm, obtains grinding material B.
3rd step, grinding material B, 20 ~ 30wt% Anhydrous potassium carbonate and the 20 ~ 30wt% potassium acetate by 40 ~ 50wt%
It is well mixed, grind 0.5 ~ 1 hour, obtain abrasive.
4th step, by the 10 ~ 20wt% grinding material B, the 30 ~ 40wt% abrasive, 20 ~ 30wt% lime stone
The thermosetting resin of particle, 10 ~ 20wt% quartz sand particle and 1 ~ 10wt% is well mixed, and is suppressed under the conditions of 50 ~ 100MPa
Shaping；Then it is heat-treated 1 ~ 3 hour under the conditions of 600 ~ 800 DEG C, is heat-treated 1 ~ 3 hour under the conditions of 900 ~ 1100 DEG C, is made
Obtain crystal whisker of hexa potassium titanate heat-barrier material.
The reducing atmosphere is carbon monoxide atmosphere.
Crystal whisker of hexa potassium titanate heat-barrier material prepared by the present invention is after testing：200 ~ 1000 DEG C of thermal conductivity factor be 0.014 ~
0.028W/(m·K)；Cold crushing strength is more than 7.5MPa；Bulk density is less than 0.5g/cm3。
Present embodiment has following good effect compared with prior art：
(1) present embodiment will produce on the Research foundation for accompanying temperature evolution to the composition of titaniferous waste material, structure and thing
The preparation process substep of product controls：The regulation of raw material character, formation interphase and material microstructure are formed.Pass through considered critical raw material
The preparation process such as granularity, the granularity of intermediate product, treatment temperature, processing time and atmosphere technical parameter, be potassium hexatitanate
The formation of whisker in the structure provides necessary requirement with being uniformly distributed, thus makes prepared crystal whisker of hexa potassium titanate heat-barrier material
Thermal conductivity factor is low, compressive resistance is big and bulk density is small.
(2) present embodiment is using titaniferous waste material as primary raw material, then is equipped with titanium dioxide, thermosetting resin, Carbon Dioxide
The common raw material of the industry such as potassium, lime stone and quartz sand, preparation process substep is controlled, had both reduced energy caused by high-temperature process
Consumption and loss of material, and corresponding different phase is formed to whisker heat-barrier material micro-structural and has carried out accurate adjustment, realize
The Balance route of properties of product, preparation process energy consumption and Material Cost.Therefore, the raw material that present embodiment not only uses comes
Source is extensive, and simple production process, production cost are low and are produced without secondary slugs.
Crystal whisker of hexa potassium titanate heat-barrier material prepared by present embodiment is after testing：200 ~ 1000 DEG C of thermal conductivity factor is
0.014~0.035W/(m·K)；Cold crushing strength is more than 5MPa；Bulk density is less than 0.5g/cm3。
Therefore, present embodiment has the characteristics of technique is simple, production cost is low and is produced without secondary slugs, made
The thermal conductivity factor of standby crystal whisker of hexa potassium titanate heat-barrier material is low, compressive resistance is big and bulk density is small.
Claims (9)
1. a kind of preparation method of crystal whisker of hexa potassium titanate heat-barrier material, it is characterised in that be the step of the preparation method：
The first step, titaniferous waste material being heat-treated 2 ~ 4 hours under the conditions of 1000 ~ 1300 DEG C, grinding to granularity is less than 0.045mm,
Obtain grinding material A；
Second step, the thermosetting resin mixing by the 50 ~ 70wt% grinding material A, 10 ~ 20wt% titanium dioxide and 10 ~ 30wt%
Uniformly, it is compressing under the conditions of 50 ~ 100MPa；Heat treatment 1 ~ 3 is small under the conditions of 1200 ~ 1400 DEG C and in reducing atmosphere
When, crush, grinding to granularity is less than 0.088mm, obtains grinding material B；
3rd step, the potassium acetate mixing by the 40 ~ 60wt% grinding material B, 10 ~ 30wt% Anhydrous potassium carbonate and 10 ~ 30wt%
Uniformly, grind 0.5 ~ 1 hour, obtain abrasive；
4th step, by the 10 ~ 20wt% grinding material B, the 30 ~ 50wt% abrasive, 10 ~ 30wt% limestone particle,
10 ~ 20wt% quartz sand particle and 1 ~ 10wt% thermosetting resin are well mixed, compressing under the conditions of 50 ~ 100MPa；
Then it is heat-treated 1 ~ 3 hour under the conditions of 600 ~ 800 DEG C, is heat-treated 1 ~ 3 hour under the conditions of 900 ~ 1100 DEG C, six titaniums is made
Sour potassium whisker heat-barrier material.
2. the preparation method of crystal whisker of hexa potassium titanate heat-barrier material according to claim 1, it is characterised in that the titaniferous waste material：
Ti contents are more than 52wt%, and Al, Ni, V, Co, Cr, Ca, Si content sum are less than 0.9wt%；The grain graininess of titaniferous waste material is small
In 0.088mm.
3. the preparation method of crystal whisker of hexa potassium titanate heat-barrier material according to claim 1, it is characterised in that the titanium dioxide
Granularity is less than 0.088mm；TiO in the titanium dioxide2Content be more than 99wt%.
4. the preparation method of crystal whisker of hexa potassium titanate heat-barrier material according to claim 1, it is characterised in that the reducing atmosphere
For hydrogen atmosphere or it is carbon monoxide atmosphere.
5. the preparation method of crystal whisker of hexa potassium titanate heat-barrier material according to claim 1, it is characterised in that the Carbon Dioxide
The granularity of potassium is less than 0.088mm；K in the Anhydrous potassium carbonate2CO3Content be more than 99wt%.
6. the preparation method of crystal whisker of hexa potassium titanate heat-barrier material according to claim 1, it is characterised in that the potassium acetate
Granularity is less than 0.088mm, and the purity of the potassium acetate is more than 99wt%.
7. the preparation method of crystal whisker of hexa potassium titanate heat-barrier material according to claim 1, it is characterised in that the lime stone
The granularity of grain is 0.088 ~ 0.25mm, and CaO content is more than 54wt% in the lime stone.
8. the preparation method of crystal whisker of hexa potassium titanate heat-barrier material according to claim 1, it is characterised in that the quartz sand
The granularity of grain is 0.088 ~ 0.25mm, SiO in the quartz sand2Content be more than 98wt%.
9. a kind of crystal whisker of hexa potassium titanate heat-barrier material, it is characterised in that the crystal whisker of hexa potassium titanate heat-barrier material is will according to right
Seek the heat-insulated material of crystal whisker of hexa potassium titanate any one of 1 ~ 8 prepared by the preparation method of crystal whisker of hexa potassium titanate heat-barrier material
Material.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778765A (en) * | 2020-06-19 | 2020-10-16 | 通城县云水云母科技有限公司 | High-heat-resistance mica paper and manufacturing method thereof |
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| CN101144186A (en) * | 2006-09-12 | 2008-03-19 | 上海秀普复合材料有限公司 | Method for synthesizing potassium hexatitanate crystal whisker |
| 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 |
| CN103693938A (en) * | 2013-12-23 | 2014-04-02 | 中国建筑材料科学研究总院 | Nano silicon oxide heat-insulating material with radiation shield layer and preparation method thereof |
| CN104947176A (en) * | 2015-06-23 | 2015-09-30 | 武汉科技大学 | Hollow structure potassium magnesium titanate whisker material and method for preparing the same |
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2017
- 2017-11-17 CN CN201711145651.XA patent/CN107740178A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144186A (en) * | 2006-09-12 | 2008-03-19 | 上海秀普复合材料有限公司 | Method for synthesizing potassium hexatitanate crystal whisker |
| 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 |
| CN103693938A (en) * | 2013-12-23 | 2014-04-02 | 中国建筑材料科学研究总院 | Nano silicon oxide heat-insulating material with radiation shield layer and preparation method thereof |
| CN104947176A (en) * | 2015-06-23 | 2015-09-30 | 武汉科技大学 | Hollow structure potassium magnesium titanate whisker material and method for preparing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778765A (en) * | 2020-06-19 | 2020-10-16 | 通城县云水云母科技有限公司 | High-heat-resistance mica paper and manufacturing method thereof |
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Application publication date: 20180227 |