CN107619261A - A kind of self-cleaning heat-insulation external wall brick of lightweight and preparation method thereof - Google Patents
A kind of self-cleaning heat-insulation external wall brick of lightweight and preparation method thereof Download PDFInfo
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- CN107619261A CN107619261A CN201711003855.XA CN201711003855A CN107619261A CN 107619261 A CN107619261 A CN 107619261A CN 201711003855 A CN201711003855 A CN 201711003855A CN 107619261 A CN107619261 A CN 107619261A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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Abstract
The invention belongs to building material technical field, and in particular to a kind of self-cleaning heat-insulation external wall brick of lightweight and preparation method thereof, raw material include component in parts by weight：30 50 parts of alkali metal frit, 20 40 parts of raw mineral materials, 20 40 parts of clinker, 36 parts of pore creating material, 15 parts of inorganic pigment coloring agent, 13 parts of nanometer titanium dioxide titanium solution, 36 parts of organic binder bond.By effective temperature control prepare it is a kind of with light weight, adhesion strength is high, weatherability is strong, clean surfaces, energy-conserving and environment-protective the self-cleaning heat-insulation external wall brick of lightweight of heat preservation and decoration of outer wall brick and preparation method thereof.
Description
Technical field
The invention belongs to building material technical field, and in particular to a kind of self-cleaning heat-insulation external wall brick of lightweight and its preparation side
Method.
Background technology
At present, country advocates Green energy-saving buildings and environment-friendly type building, should have intensity as insulation and decoration wall brick
High, the features such as weatherability is strong, heat insulation property is good.But heat preservation and decoration of outer wall brick on the market at present, generally have and bond by force
Degree is not high, easily comes off and hurts sb.'s feelings；Weatherability is not strong, with the passing of time fades；Ash is easily stained with surface, and work high above the ground, cleaning difficulty is big and has danger
It is dangerous；The shortcomings that solid construction causes heat insulation property bad, therefore, urgent need develop a kind of with light weight, adhesion strength
Height, weatherability are strong, clean surfaces, the heat preservation and decoration of outer wall material of energy-conserving and environment-protective.
A kind of porous heat-insulating brick (notification number CN103724049A) of patent, discloses a kind of porous heat-insulating brick, by weight,
The porous heat-insulating brick includes following components：50~100 parts of expanded perlite, 35~85 parts of waterglass, lithium bentonite 10~
40 parts, 5~25 parts of calcined kaolin, 3~10 parts of calcium carbonate, 5~10 parts of sepiolite.The length of the porous heat-insulating brick length
Degree is than being 10~20:5~10:2~5.The insulation material that the invention provides has compared with traditional expanded perlite thermal-nsulation brick
More preferable heat-insulating property, mechanical strength and water resistance are also further improved, and are a kind of insulation materials being worthy to be popularized, but
To be different from the exterior wall tile used in building field, on adhesion there is it is certain the defects of.
A kind of building face wall iron tailings base anti-aging porous light insulating brick and its preparation technology (notification number of patent
CN106242615A a kind of anti-aging porous light insulating brick of building face wall iron tailings base and its preparation technology) are disclosed,
This insulating brick is using iron tailings as base-material, using mullite, expanded perlite, magnesium fluoride etc. as auxiliary material, and with cement, plant
The raw materials such as pitch, Ludox, sodium lignin sulfonate add anti-light aging, weather-proof nanometer chi as bonding agent and pore-foaming agent
Very little titanium dioxide powder, composite body form the high fire resisting, heat-insulated, ageing-resistant with even porous structure after high temperature sintering
Brick body, the bonding agent and pore-foaming agent of compounding cause batch mixing consolidation, and base substrate is not easy to crack in sintering process, pore-forming inside base substrate
Rate is high, and sintered body is had no adverse effects, and effectively improves the heat-insulation and heat-preservation ability of brick body, and insulating brick of the present invention also has production
The characteristics of cost is low, technique is simple and environmentally-friendly efficient, it is adapted to building wall heat-insulation and heat-preservation use.Although the invention belongs to Building wood
One kind of wall brick in material, but the exterior wall tile for being attached to building surface is different from, building wall brick needs solid, insulation, and outer
Wall brick does not need only to have good intensity and self-cleaning ability, and it also requires with good fitting ability, ensures using
During will not fall off and endanger other people life securities.
According to problems of the prior art, the present invention provides a kind of with light weight, adhesion strength height, weatherability
By force, clean surfaces, the self-cleaning heat-insulation external wall brick of lightweight of heat preservation and decoration of outer wall brick and preparation method thereof of energy-conserving and environment-protective.
The content of the invention
The invention provides following technical scheme：
A kind of self-cleaning heat-insulation external wall brick of lightweight：Raw material includes component in parts by weight：Alkali metal frit 30-
50 parts, raw mineral materials 20-40 parts, clinker 20-40 parts, pore creating material 3-6 parts, inorganic pigment coloring agent 1-5 parts, nano titanium oxide
Solution 1-3 parts, organic binder bond 3-6 parts.
Preferably, described alkali metal frit is discarded glass, and the discarded glass includes waste and old window body glass, given up
One or more in old vial and waste and old Laboratory Instruments glass.
Preferably, described raw mineral materials is clay, feldspar, flint, zinc oxide, whiting, tin oxide, magnesite
One kind or any several in ore deposit, barium titanate, talcum, lead zirconates, nepheline syenite, zircon and pyrophillite.
Preferably, the main component of the clinker is that oxide is, the oxide is silica, aluminum oxide, oxidation
One or more in calcium and magnesia；Also include sulfide and metal in the clinker.
Preferably, described pore creating material is the one or more in ammonium hydrogen carbonate, ammonium carbonate and ammonium chloride.
Preferably, the nanometer titanium dioxide titanium solution is the nanometer titanium dioxide titanium solution of concentration 1%.
Preferably, the organic binder bond is the polyvinyl alcohol water solution that weight/mass percentage composition is 3%.
Present invention also offers a kind of preparation method of the self-cleaning heat-insulation external wall brick of lightweight, comprise the following steps that：
S1：Raw material being weighed and grinding：Individual component is weighed according to ratio of weight and number, then by the alkali metal glass
Glass and the clinker obtain fine powder compound through dry grinding；
S2:The mixing of raw material：Fine powder compound, pore creating material and the organic binder bond are put into comminutor, mould is made
Press compound；
S3：Pressing mold：The molding compound is put into mould, life is made using isostatic pressing process compacting 1-2min
Base；
S4：Spraying：The nanometer titanium dioxide titanium solution is sprayed in the green surface；
S5：Fire：The green compact of the spray coated nanometer titanium dioxide titanium solution are placed on to the fire resisting support for being covered with magnesia
On plate, it is then placed in tunnel cave and fires：First, kiln temperature is risen to 5-10 DEG C/min heating rate
400 DEG C, it is incubated 2 hours；Then, kiln temperature then with 10-15 DEG C/min heating rates is risen to 700-900 DEG C, insulation 1 is small
When；Finally, with 1-5 DEG C/min rate of temperature fall, 500 DEG C are down to, then with 5-10 DEG C/min rate of temperature fall, be down to room temperature, obtain into
Product.
Preferably, the fine powder compound is the powder that granularity is 500 mesh.
Preferably, the pressure of the isostatic pressing process is used during the pressing mold as 30-60MPa.
The beneficial effects of the invention are as follows：
1st, the present invention adds alkali metal glass into raw material, is because alkali metal glass is a kind of unformed SiO2Network knot
Structure, alkali (soil) metal ion (Li+、Na+、K+、Ca2+、Mg2+) SiO of glass can be destroyed2Network structure so that glass is relatively low
, there are a large amount of liquid phases in the melting of (500 DEG C or so) of temperature, and liquid phase goes out to be now able to soak mineral and clinker, rush can compared with
Low temperature densified sintering product, while the thermal conductivity factor of glass is low, can drag down the thermal conductivity factor of insulating brick, improves the insulation of the present invention
Effect；
2nd, at present, the thermal coefficient of expansion scope (6.0-8.3) × 10 for the standard cement that our national construction industries use-6/ K,
The present invention in suitable number, makes the present invention and the thermal coefficient of expansion of wall binding material by the way that the alkali metal glass of addition is controlled
Matching, so as to ensure in external environment, through expanding with heat and contract with cold, is all tightly bonded together, and reduction is expanded with heat and contract with cold and causes insulating brick
The risk to come off；
3rd, the raw mineral materials and clinker that the present invention uses can effectively reduce the shrinkage factor of the present invention and improve the present invention's
Mechanical strength, in addition, the clinker that the present invention uses is mainly derived from, steel, ferroalloy and nonferrous heavy metal are smelted and refining waited
Journey, effective and reasonable utilization is realized to industrial production waste, not only cost is cheap, and more environmentally-friendly；
4th, the pore creating material that the present invention adds can be decomposed, in decomposable process in the temperature environment below 400 DEG C
Substantial amounts of CO can be discharged2、NH3Deng gas, substantial amounts of open pore can be formed in green compact, so that provided by the invention outer
Wall brick is internally formed loose structure, makes exterior wall tile internal structure loose, so as to play mitigation quality, due to the heat conduction system of air
Number is low, therefore can also further strengthen the effect of insulation of the present invention；
5th, the effect of organic binder bond is each component material is effectively bonded together, and is formed by compression molding
Green compact；
6th, the present invention sprays nanometer titanium dioxide titanium solution in green surface, nano titanium oxide is formed in green surface thin
Water end (W.E.) and anion layer, the adhesion of extraneous dust and the erosion of rainwater are reduced, brick face is kept with the passing of time bright dustless, reduce exterior wall
Face is kept a public place clean the number of dedusting；
7th, the present invention is accurately controlled temperature in sintering procedure, and cardinal principle is：First with 5-10 DEG C/min
Heating rate, 400 DEG C are risen to, be incubated 2 hours, primarily to slow down firing rate, the CO for allowing inorganic pore creating material to discharge2、
NH3Deng gas, substantial amounts of open pore can be formed inside green compact to external diffusion；Then, then with 10-15 DEG C/min heat up fast
Rate, 700-900 DEG C is risen to, be incubated 1 hour, primarily to the glass that can be allowed in insulating brick mutually occurs, so selection insulation 1
Hour, make glass phase and can fully soak the raw materials such as slag and clinker；Finally, with 1-5 DEG C/min rate of temperature fall, 500 are down to
DEG C, then with 5-10 DEG C/min rate of temperature fall, be down to room temperature, obtain finished product, this stage is cooled from two sections, mainly in high temperature
Under state, cooling is too fast, easily causes that the hot internal stress of brick body is big, and brick body is easy to crack, and temperature is slowly reduced using two-part can
Effectively to prevent brick body from ftractureing；
9th, the present invention is brick-making raw material by using alkali metal glass and pore creating material, makes brick body volume produced by the present invention close
Spend small, about 1.2-1.7g.cm-3；Resistance to compression, High anti bending strength, about 1.6-5.7MPa；Water absorption rate is about 0.7-1.5vol%,
Thermal conductivity factor is about 0.086-0.156w/mk；Thermal coefficient of expansion is 6.5-7.6 × 10-6/ K, it is hot swollen with metope binding material
Swollen coefficient is about 6.0-8.3 × 10-6/ K, to sum up exterior wall tile collection lightweight provided by the invention, self-cleaning, insulation and anticreep fall within one
Body.
Brief description of the drawings
Fig. 1 is the microstructure photograph of embodiment 1；
Fig. 2 is the microstructure photograph of embodiment 2；
Fig. 3 is the microstructure photograph of embodiment 3.
Embodiment
A kind of preparation method of the self-cleaning heat-insulation external wall brick of lightweight, is comprised the following steps that：
S1：Raw material being weighed and grinding：Individual component is weighed according to ratio of weight and number, then by alkali metal glass and
Clinker obtains fine powder compound through dry grinding, and fine powder compound is the powder that granularity is 500 mesh；
S2:The mixing of raw material：Fine powder compound, pore creating material and organic binder bond are put into comminutor, it is mixed that molding is made
Close material；
S3：Pressing mold：Molding compound is put into mould, green compact are made using isostatic pressing process compacting 1-2min,
The pressure of isostatic pressing process is used during pressing mold as 30-60MPa；
S4：Spraying：Nanometer titanium dioxide titanium solution is sprayed in green surface；
S5：Fire：The green compact of spray coated nanometer titanium dioxide titanium solution are placed on the fire resisting supporting plate for being covered with magnesia,
It is then placed in tunnel cave and fires：First, kiln temperature is risen to 400 DEG C with 8 DEG C/min heating rate, insulation
2 hours；Then, kiln temperature then with 13 DEG C/min heating rates is risen to 800 DEG C, is incubated 1 hour；Finally, dropped with 4 DEG C/min
Warm speed, 500 DEG C are down to, then with 7 DEG C/min rate of temperature fall, are down to room temperature, obtain finished product.
Embodiment 1
A kind of self-cleaning heat-insulation external wall brick of light yellow lightweight：Raw material includes component in parts by weight：Waste and old forms glass
30 parts of glass, 7 parts of clay, 7 parts of feldspar, 7 parts of whiting, 7 parts of magnesite, 9 parts of talcum, 20 parts of clinker, 4 parts of ammonium carbonate, light yellow
3 parts of inorganic pigment, 2 parts of nanometer titanium dioxide titanium solution, 4 parts of polyvinyl alcohol water solution.
The self-cleaning heat-insulation external wall brick of light yellow lightweight is made according to above-mentioned preparation method.
Embodiment 2
A kind of red red self-cleaning heat-insulation external wall brick of lightweight：Raw material includes component in parts by weight：Waste and old forms glass
35 parts of glass, 7 parts of clay, 6 parts of feldspar, 7 parts of whiting, 6 parts of magnesite, 6 parts of talcum, 20 parts of clinker, 4 parts of ammonium carbonate are red red
3 parts of inorganic pigment, 2 parts of nanometer titanium dioxide titanium solution, 4 parts of polyvinyl alcohol water solution.
The red red self-cleaning heat-insulation external wall brick of lightweight is made according to above-mentioned preparation method.
Embodiment 3
A kind of self-cleaning heat-insulation external wall brick of cinerous lightweight：Raw material includes component in parts by weight：Waste and old forms glass
40 parts of glass, 5 parts of clay, 8 parts of feldspar, 5 parts of whiting, 8 parts of magnesite, 4 parts of talcum, 20 parts of clinker, 2 parts of ammonium carbonate, cinerous
3 parts of inorganic pigment, 2 parts of nanometer titanium dioxide titanium solution, 3 parts of polyvinyl alcohol water solution.
The self-cleaning heat-insulation external wall brick of cinerous lightweight is made according to above-mentioned preparation method.
Experiment one：The self-cleaning heat-insulation external wall brick of light yellow lightweight, red red lightweight are self-cleaning made from Example 1- embodiments 3
Heat-insulation external wall brick and the self-cleaning heat-insulation external wall brick of cinerous lightweight, test their superficial density, resistance to compression and rupture strength, water suction
Rate, thermal conductivity factor and thermal coefficient of expansion, the result measured are as shown in table 1：
Table 1 is the record data of test：
Experiment two：The self-cleaning heat-insulation external wall brick of light yellow lightweight, red red lightweight are self-cleaning made from Example 1- embodiments 3
Heat-insulation external wall brick and the self-cleaning heat-insulation external wall brick of cinerous lightweight, pass through the structure of their inside of scanning electron microscopic observation.Electron-microscope scanning
As a result as shown in Figure 1-Figure 3.
The inside that the self-cleaning heat-insulation external wall brick of lightweight provided by the invention is understood according to above-mentioned experimental data is loose structure, weight
Lighter, low thermal conductivity high insulating effect is measured, intensity is high, can firmly be bonded with wall.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, although with reference to the foregoing embodiments
The present invention is described in detail, for those skilled in the art, it still can be to foregoing embodiments institute
The technical scheme of record is modified, or which part technical characteristic is carried out with replacement.It is all the present invention it is spiritual and former
Within then, any modification, same to replacement, the improvement made, it should be included in the scope of the protection.
Claims (10)
1. a kind of self-cleaning heat-insulation external wall brick of lightweight, it is characterised in that raw material includes component in parts by weight：Alkali metal glass
Glass raw material 30-50 parts, raw mineral materials 20-40 parts, clinker 20-40 parts, pore creating material 3-6 parts, inorganic pigment coloring agent 1-5 parts, receive
Rice titania solution 1-3 parts, organic binder bond 3-6 parts.
2. the self-cleaning heat-insulation external wall brick of a kind of lightweight according to claim 1, it is characterised in that described alkali metal glass is former
Expect to include in waste and old window body glass, discarded glass bottle and waste and old Laboratory Instruments glass for discarded glass, the discarded glass
One or more.
3. the self-cleaning heat-insulation external wall brick of a kind of lightweight according to claim 1, it is characterised in that described raw mineral materials is viscous
Soil, feldspar, flint, zinc oxide, whiting, tin oxide, magnesite, barium titanate, talcum, lead zirconates, nepheline syenite, zirconium
One kind or any several in stone and pyrophillite.
A kind of 4. self-cleaning heat-insulation external wall brick of lightweight according to claim 1, it is characterised in that the main component of the clinker
It is that the oxide is the one or more in silica, aluminum oxide, calcium oxide and magnesia for oxide；The clinker
In also include sulfide and metal.
5. the self-cleaning heat-insulation external wall brick of a kind of lightweight according to claim 1, it is characterised in that described pore creating material is carbonic acid
One or more in hydrogen ammonium, ammonium carbonate and ammonium chloride.
6. the self-cleaning heat-insulation external wall brick of a kind of lightweight according to claim 1, it is characterised in that the nano titanium oxide is molten
Liquid is the nanometer titanium dioxide titanium solution of concentration 1%.
7. the self-cleaning heat-insulation external wall brick of a kind of lightweight according to claim 1, it is characterised in that the organic binder bond is matter
Measure the polyvinyl alcohol water solution that percentage composition is 3%.
8. a kind of preparation method of the self-cleaning heat-insulation external wall brick of lightweight, it is characterised in that comprise the following steps that：
S1：Raw material being weighed and grinding：Individual component is weighed according to ratio of weight and number, then by the alkali metal glass and
The clinker obtains fine powder compound through dry grinding；
S2:The mixing of raw material：Fine powder compound, pore creating material and the organic binder bond are put into comminutor, it is mixed that molding is made
Close material；
S3：Pressing mold：The molding compound is put into mould, green compact are made using isostatic pressing process compacting 1-2min；
S4：Spraying：The nanometer titanium dioxide titanium solution is sprayed in the green surface；
S5：Fire：The green compact of the spray coated nanometer titanium dioxide titanium solution are placed on the fire resisting supporting plate for being covered with magnesia,
It is then placed in tunnel cave and fires：First, kiln temperature is risen to 400 DEG C with 5-10 DEG C/min heating rate,
Insulation 2 hours；Then, kiln temperature then with 10-15 DEG C/min heating rates is risen to 700-900 DEG C, is incubated 1 hour；Finally,
With 1-5 DEG C/min rate of temperature fall, 500 DEG C are down to, then with 5-10 DEG C/min rate of temperature fall, be down to room temperature, obtain finished product.
A kind of 9. preparation method of the self-cleaning heat-insulation external wall brick of lightweight according to claim 8, it is characterised in that the fine powder
Compound is the powder that granularity is 500 mesh.
A kind of 10. preparation method of the self-cleaning heat-insulation external wall brick of lightweight according to claim 8, it is characterised in that the pressure
The pressure of the isostatic pressing process is used in mold process as 30-60MPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711003855.XA CN107619261A (en) | 2017-10-24 | 2017-10-24 | A kind of self-cleaning heat-insulation external wall brick of lightweight and preparation method thereof |
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| CN201711003855.XA CN107619261A (en) | 2017-10-24 | 2017-10-24 | A kind of self-cleaning heat-insulation external wall brick of lightweight and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484127A (en) * | 2018-01-24 | 2018-09-04 | 合肥铭佑高温技术有限公司 | A kind of highiy refractory brick and preparation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1539795A (en) * | 2003-10-29 | 2004-10-27 | 王玉震 | Self-purging ceramic tile |
| CN1931779A (en) * | 2006-10-13 | 2007-03-21 | 北京工业大学 | Color light wall tile and its making process |
-
2017
- 2017-10-24 CN CN201711003855.XA patent/CN107619261A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1539795A (en) * | 2003-10-29 | 2004-10-27 | 王玉震 | Self-purging ceramic tile |
| CN1931779A (en) * | 2006-10-13 | 2007-03-21 | 北京工业大学 | Color light wall tile and its making process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484127A (en) * | 2018-01-24 | 2018-09-04 | 合肥铭佑高温技术有限公司 | A kind of highiy refractory brick and preparation method |
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