CN1108630A - High-temp. heat-insulated material - Google Patents
High-temp. heat-insulated material Download PDFInfo
- Publication number
- CN1108630A CN1108630A CN 94102549 CN94102549A CN1108630A CN 1108630 A CN1108630 A CN 1108630A CN 94102549 CN94102549 CN 94102549 CN 94102549 A CN94102549 A CN 94102549A CN 1108630 A CN1108630 A CN 1108630A
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- Prior art keywords
- heat
- temp
- insulation
- cement
- water glass
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Building Environments (AREA)
- Sealing Material Composition (AREA)
Abstract
The high-temp. heat-insulated material consists of (weight percentage): 31.0-73.5% of sepiolite floss, 21.9-6.4% of high-quality low-calcium aluminate cement or alumine cement and the rest of inorganic binding agent which can be one of such materials as water glass, MgCl2, phosphoric acid, aluminium sulfate solution. The heat-conductive coefficient of said material at the temp. of 110 deg. C is 0.2-0.4 (W/m.k), the normal-temp. compression strength is of 3/0-7.5 MPa, the specific volume weight is 0.92-1.38g/cum.cm. it has good mechanical strength, thermal stability and thermo-shock resistance. It can be directly applicated to the engineering facilities need open-fire-proofing and meets the requirement of integrate seamless contruction, and can be made into the products of different size and form without being sintered.
Description
The present invention relates to a kind of new type high temperature heat-insulation and heat-preservation material, or rather, the present invention relates to the sepiolite cashmere is main raw, and adds the high-temperature heat insulation heat insulating material of low calcium-aluminate cement (or luminite cement) of high-quality and inorganic adhesive.
As everyone knows, order has the heat-insulation and heat-preservation material category of the industry of being applied to various, proportioning raw materials has nothing in common with each other, and its performance difference is very big, according to " refractory materials application manual " (being published in September, 92 by metallurgical industry press) P405-P444 record, lightweight refractory is good with the hollow alumina products performance, this material volume density is low, has good mechanical intensity, and use temperature is higher than 1200 ℃, but these goods must burn till through high temperature kiln, are difficult to satisfy big area or integral seamless crack construction requirement; Other lagging material (as diatomite, asbestos lagging material), refractory fibre and refractory fibre product, though thermal conductivity is low, mechanical strength is also low, only 700-800 ℃ of use temperature can not be used for anti-naked light job facilities; The inventor is disclosed a kind of high-temperature heat insulation heat insulating material in the patent of invention CN 92102059.7 of application on April 2nd, 92, its over-all properties is better than above-mentioned materials, and can satisfy seamless construction requirement, but the mechanical strength of this material under low temperature and high temperature is still undesirable, its range of application is restricted, be the more perfect desirable heat-insulation and heat-preservation material of development performance, the inventor has done persevering endeavors.
The object of the invention is to provide a kind of new type high temperature heat-insulation and heat-preservation material, this material thermal conductivity is low, the cold crushing strength height, volume density is little, still has good mechanical intensity being higher than under 1200 ℃ of temperature, it can directly be applied to must the job facilities of anti-naked light on, satisfy integral seamless crack construction requirement, and need not around knot promptly make vary in size, different goods, if adjust prescription, can also be used as sealing material.
A kind of new type high temperature heat-insulation and heat-preservation material of the present invention is characterized in that each set of dispense than by weight is: sepiolite cashmere 31.0-73.5%, and high-quality is hanged down calcium-aluminate cement 21.9-6.4%, and surplus is an inorganic adhesive, and this inorganic adhesive is selected from water glass, Mgcl
2, phosphoric acid, alum liquor a kind of, the also available luminite cement of above-mentioned low calcium-aluminate cement replaces.
High-temperature heat insulation heat insulating material production technique of the present invention is simple, sepiolite is become velvet-like through the ore dressing pretreatment post-treatment, add low calcium-aluminate cement (or luminite cement) of high-quality and inorganic adhesive by proportioning, through stirring, moulding, maintenance (natural air drying or use the loft drier drying) 1-3 days, get product.
Material of the present invention is a main raw material with the sepiolite cashmere, and sepiolite cashmere is processed by sepiolite, the high fibrous magnesium silicate clay mineral that sepiolite is a kind of white, light weight, can bubble through the water column, and its chemical formula is Mga[Si
12O
30] (OH)
412H
2O, its adsorptivity is strong, and specific surface is big, shrinking percentage is low, plasticity-is good, glossy, and has good thermostability and insulating property.
The low calcium-aluminate cement (or luminite cement) of high-quality is a kind of gelinite, has good thermostability, wear-resisting, fire-resistant and slag resistance, has half elasticity after the drying, can cushion stress and strain, increases the mechanical strength of material.
The inorganic adhesive that adds in the outstanding material of the present invention all is the solution form, and they not only have the setting accelerator effect, can also regulate, improve the sepiolite cashmere performance, increase the mechanical strength of material at normal temperatures.When preparing material of the present invention, can select different tackiness agents for use according to use properties requirement and use technology condition, for example: be used for the high-temperature heat insulation heat insulating material of anti-naked light job facilities in the open, select for use water glass to make tackiness agent, be used for indoor anti-naked light job facilities, select Mgcl for use
2(bittern) solution is made tackiness agent water glass and is claimed water glass again, and its chemical formula is Na
2Onsio
2XH
2O, the water content of water glass directly influences its viscosity, and general water glass density is 1.4-1.5g/cm
3, the density conference reduces the material use temperature, makes water glass density be controlled at 1.2g/cm by increasing water content among the present invention
3Below.
Below will the invention will be further described by embodiment
Embodiment 1:
Each set of dispense is as follows than by weight:
Sepiolite cashmere: 70%
High-quality is hanged down calcium-aluminate cement (or luminite cement): 9%
Water glass (proportion 4.2G/
3): 21%
Sepiolite is become velvet-like through the ore dressing pretreatment post-treatment, add low calcium-aluminate cement (or luminite cement) of high-quality and water glass,, get product through stirring, moulding, maintenance (natural air drying or use the loft drier drying) 1-3 days by proportioning.
This material salient features test result is as shown in table 1 below
Embodiment 2:
Each set of dispense is as follows than by weight:
Sepiolite cashmere: 37%
High-quality is hanged down calcium-aluminate cement (or luminite cement): 20%
Mgcl
2Solution (proportion 1.58/cm
3): 43%
Make finished product by aforementioned technology, this material salient features test result is as shown in table 1.
Embodiment 3:
Each set of dispense is as follows than (by weight):
Sepiolite cashmere 58%
High-quality is hanged down calcium-aluminate cement 6.4%
Phosphoric acid solution (proportion 1.25g/cm
3) 35.6%
Make finished product by above-mentioned technology.
Embodiment 4:
Each set of dispense is as follows than (by weight):
Sepiolite cashmere 69.2%
High-quality is hanged down calcium-aluminate cement 7.6%
Alum liquor (proportion 1.25g/cm
3) 23.2%
Make finished product by above-mentioned technology.
The salient features of table 1 material of the present invention and the described material of CN92102059.7 application for a patent for invention and existing heat-insulation and heat-preservation material relatively
| Performance | Material tackiness agent of the present invention is that tackiness agent is | The described material of CN92102059.7 | Existing heat-insulation and heat-preservation material (is example with the hollow alumina products) | ||
| Water glass | Mgcl 2 | I level product | II level product | ||
| Volume density g/cm 3(being lower than) | 1.38 | 0.88～ 0.92 | 1.28 | 1.2 | 1.4 |
| Cold crushing strength MPa (being higher than) | 7.0 | 3.6 | 2.7 | 3 | 10 |
| Thermal conductivity HY (m.k) heat becomes 1100 ℃ | 0.37 | 0.2 | 0.47 | 0.93 | 1.04 |
| Anti-naked light use temperature (being higher than) | 1200℃ | 1200℃ | 1200℃ | 1200℃ | 1200℃ |
Be not difficult to find out that by last table the over-all properties of material of the present invention obviously is better than existing heat-insulation and heat-preservation material, compares with the described material of CN92102059.7, because the present invention has done bigger change on prescription, makes its performance more perfect, thereby Application Areas enlarges.
In view of mechanics of materials intensity of the present invention big, thermal conductivity is low, again can be anti-oxidant, corrosion-resistant, insulation, sound insulation, waterproof, antifreeze, bright and clean attractive in appearance, nonpoisonous and tasteless, can be used for seamless site operation, and need not the goods that sintering can be made size, shape, varies in color and have embossing pattern.If change the inorganic adhesive ratio in the prescription, promptly can be used as sealing material.At metallurgy, machinery, electronics, petrochemical complex, building, thermal meter and military industry field extensive use is arranged all.
Claims (3)
1, a kind of new type high temperature heat-insulation and heat-preservation material is characterized in that each set of dispense than by weight is: sepiolite cashmere 31.0-73.5%, and high-quality is hanged down calcium-aluminate cement 21.9-6.4%, and surplus is an inorganic adhesive.
2, new type high temperature heat-insulation and heat-preservation material as claimed in claim 1 is characterized in that inorganic adhesive is selected from water glass, Mgcl
2, phosphoric acid, alum liquor a kind of.
3, new type high temperature heat-insulation and heat-preservation material as claimed in claim 1 is characterized in that the low calcium-aluminate cement of high-quality can replace with luminite cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94102549A CN1045196C (en) | 1994-03-18 | 1994-03-18 | High-temp. heat-insulated material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94102549A CN1045196C (en) | 1994-03-18 | 1994-03-18 | High-temp. heat-insulated material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1108630A true CN1108630A (en) | 1995-09-20 |
| CN1045196C CN1045196C (en) | 1999-09-22 |
Family
ID=5030696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94102549A Expired - Fee Related CN1045196C (en) | 1994-03-18 | 1994-03-18 | High-temp. heat-insulated material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1045196C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052708C (en) * | 1995-10-10 | 2000-05-24 | 晋永昶 | Building decorating board |
| CN1118527C (en) * | 2000-10-24 | 2003-08-20 | 华东理工大学 | Self-curing inorganic heat-conducting daub |
| CN101760176B (en) * | 2010-01-22 | 2011-02-16 | 侯永忠 | Coke oven sealant prepared by fly ash and preparation method and application thereof |
| CN102936123A (en) * | 2011-08-15 | 2013-02-20 | 中国航天科工集团第六研究院四十六所 | Fireproof and heat-insulation material and preparation method |
| CN106431170A (en) * | 2016-09-28 | 2017-02-22 | 河南欧亚保温材料有限公司 | Preparation method of thermal-insulating and fire-proof bars |
| CN111018454A (en) * | 2019-12-12 | 2020-04-17 | 郴州市耐普电源有限公司 | Heat preservation agent capable of prolonging dropping time and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87103592A (en) * | 1987-05-13 | 1987-12-09 | 黑龙江省低温建筑科学研究所 | Pearlite adhesive |
| CN1076955A (en) * | 1992-04-02 | 1993-10-06 | 王旭 | High-temperature heat insulation heat insulating material |
| CN1103100A (en) * | 1993-11-24 | 1995-05-31 | 彭吕元 | Sepiolite heat insulating, water-proof stop leakage paste and use |
-
1994
- 1994-03-18 CN CN94102549A patent/CN1045196C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052708C (en) * | 1995-10-10 | 2000-05-24 | 晋永昶 | Building decorating board |
| CN1118527C (en) * | 2000-10-24 | 2003-08-20 | 华东理工大学 | Self-curing inorganic heat-conducting daub |
| CN101760176B (en) * | 2010-01-22 | 2011-02-16 | 侯永忠 | Coke oven sealant prepared by fly ash and preparation method and application thereof |
| CN102936123A (en) * | 2011-08-15 | 2013-02-20 | 中国航天科工集团第六研究院四十六所 | Fireproof and heat-insulation material and preparation method |
| CN102936123B (en) * | 2011-08-15 | 2016-05-18 | 中国航天科工集团第六研究院四十六所 | Fire-retardant heat-insulation material and preparation method |
| CN106431170A (en) * | 2016-09-28 | 2017-02-22 | 河南欧亚保温材料有限公司 | Preparation method of thermal-insulating and fire-proof bars |
| CN111018454A (en) * | 2019-12-12 | 2020-04-17 | 郴州市耐普电源有限公司 | Heat preservation agent capable of prolonging dropping time and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1045196C (en) | 1999-09-22 |
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