CN106747206B - A kind of preparation method of modified marble powder low-temperature sintering artificial stone - Google Patents
A kind of preparation method of modified marble powder low-temperature sintering artificial stone Download PDFInfo
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- CN106747206B CN106747206B CN201611016698.1A CN201611016698A CN106747206B CN 106747206 B CN106747206 B CN 106747206B CN 201611016698 A CN201611016698 A CN 201611016698A CN 106747206 B CN106747206 B CN 106747206B
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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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
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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
- C04B28/005—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 gelatineous or gel forming binders, e.g. gelatineous Al(OH)3, sol-gel binders
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
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Abstract
The present invention discloses a kind of preparation method of modified marble powder low-temperature sintering artificial stone, belongs to architectural decoration material field.For the present invention using marble powder as raw material, process is powder-modified, adds a small amount of inorganic adhesive and filler, mixing, granulation, pressure forming, and (500~600 DEG C) sintering under low temperature, preparing bending strength is 30-50 MPa slug type artificial stone.The present invention have the characteristics that marble powder utilization rate height, simple process, have excellent performance, article shape is adjustable, it can be achieved that marble powder scale, high value added utilization, there is significant economical and environmentally friendly benefit.
Description
Technical field
The present invention relates to the methods that marble powder sintering prepares artificial stone, and especially modified marble powder low-temperature sintering is artificial
The method of stone, belongs to architectural decoration material field.
Technical background
It is quick as decorative lithotome (mainly marble and granite) demand with socio-economic development
Increase, for annual growth 10% or more, stone industries occupy consequence in global economy.It is produced in stone machining processing
Raw a large amount of waste materials, are broadly divided into two classes: first is that offcut, second is that waste stone dust.According to statistics, every 2.5 tons of lithotomes of production produce
Raw waste material of stone is about 1 ton, i.e., scrap rate is about 20-30% to lithotome in process.A large amount of waste material of stone are not
Only polluted source and soil, and be a kind of wasting of resources, it is unfavorable for Ornamental Stone Industry sustainable development.
Waste material of stone recycling was still in the exploratory stage, and larger-size Masonry Scrap can be cut into not similar shape
Shape small dimension face brick, mosaic or parquets stone material (88100494 A of CN) and ice line marble (104526887 A of CN) are contour
Added value decorative panel, for the positions such as corridor, flower stand, toilet decoration decoration；The smaller leftover pieces of size are added after broken
Bonding agent may be alternatively configured terrazzo or compound stone (101774782 A of CN) with different decorative patterns.Domestic and foreign scholars have studied
Application of the waste material of stone as cement and aggregate can substitute completely if marble waste residue is as concrete coarse aggregate
Sand, basalt, granite or limestone (A Andr é et al.Journal of Cleaner Production, 2014,65:
389-396).Above-mentioned application remains barren rock material initial physical chemical property, is used as construction material.
For the waste stone dust and its water slurry generated during processing of stone cutting, grinding and polishing, it is mainly used in sintering clay
Brick and tile and self-compacting concrete filler (BS Fonseca et al.Civil and Environmental Research,
2013；3(9):68-74；DM Sadek et al.Journal of Cleaner Production,2016；121:19-
32.), mine and industrial sewage treating agent (I Javed et al.Desalination and Water Treatment,
2016；57 (22): 10422-10431.), soil stabilizer (O Sivrikaya et al.Environmental Earth
Science,2014；71:4397-4407).Careddu etc. analyze the partial size of Marble processing sawdust (powder), specific surface area,
Coloration and whiteness value (N.Careddu et al.Journal of Cleaner Production, 2014,84:533-
539.), by improving Marble processing technique and wastewater treatment process, marble powder be expected to be applied to papermaking, rubber, coating and
Pharmaceutical field.
Artificial stone is similar with lithotome, there is color to enrich, hardness height, not easy damaged, corrosion-resistant, high temperature resistant, Yi Qing
The characteristics such as clean.Artificial stone mainly using the metaling of natural marble or granite as filler material, with cement/concrete, gypsum,
Waterglass, resin etc. be binder, be made after material mixing, molding, grinding and polishing finished product (Bi Chunbo etc., stone material, 2008,
(5):17-22).This kind of artificial stone is also referred to as terrazzo or compound stone, due to being at normal temperature or low temperature by physical bonds
At mechanical strength is lower than natural stone.Resin type artificial stone physics, stable chemical performance, decorative pattern is easy design, but price is opposite
It is higher, it is easy aging deformation；Cement mo(u)ld is generally the least expensive, but corrosion resistance is poor, is easy to appear micro-crack, is suitable only for making plate
Material.
It is by feldspar, quartz, pyroxene, calcite in powder and ground hematite and a small amount of in addition, there are also a kind of slug type artificial stone
Kaolin etc. mixing, prepare blank with puddling, it is dry pressure formed with half, in kiln with 1000 DEG C or more high temperature sinterings and
At.It melted, formed, Annealing Crystallization under low temperature at high temperature using various industrial residues (such as slag, steel slag) and industrial chemicals, made
Standby crystallizing glass decoration board is a kind of artificial stone, but its complex process, at high price.
So far, the open report of marble powder low-temperature sintering artificial stone is not yet found both at home and abroad.The present invention is using greatly
Fibrous gypsum powder is that raw material adds a small amount of bonding agent and filler, be sintered artificial stone under low temperature by powder surface modification.Present invention tool
There is the features such as marble powder utilization rate is high, article shape is adjustable, energy conservation and environmental protection, is conducive to extend Marble processing industrial chain, it is real
The efficient utilization of existing waste stone dust, cultivates new profit growth point, promotes marble resource Sustainable Development and Utilization.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation method using marble powder low-temperature sintering artificial stone, and artificial stone
Performance is suitable with lithotome.The present invention is using marble powder as raw material, by the coupling agent modified of powder surface, so that mountain flour
Grain surface forms a large amount of with the high active functional group of sintering.Bonding agent makes to be formed between marble powder granule in sintering process
Firm interfacial bond combines, and filler is filled with hole between powder granule, thus prepare with the bulk density of lithotome,
The comparable artificial stone of the performance indicators such as water absorption rate, flexural strength.
The object of the present invention is achieved like this, a kind of preparation method of modified marble powder low-temperature sintering artificial stone,
It is characterized in that realizing by following processing step:
1) after marble powder is dry, a small amount of surface modifier is added, carries out ball milling modification；
2) after dry in modified powder, a small amount of bonding agent and filler is added, carries out mixing, be granulated, uniformly mixed
Close powder；
3) mixed powder pressure forming, drying, and be sintered at low temperature, obtain artificial stone.
The marble powder is the marble powder of generation during cutting marble and grinding and polishing, and diameter of particle is less than 120 mesh；
The marble powder surface modifier is organic alcoholic solution of epoxy silane coupling, epoxy radicals silicone hydride coupling
Agent usage amount is the 0.5~2% of marble powder quality, and Organic Alcohol is methanol, ethyl alcohol or isopropanol.
The inorganic adhesive is molten for 500~600 DEG C of melting temperature of low melting point silicate glass powder, silica solution, aluminium
The combination of one or more of glue, usage amount are the 0.5~5% of marble powder quality；The filler be acid-washed asbestos,
The calcium carbonate powder or combinations thereof of 12500 mesh of partial size, usage amount are the 1~5% of marble powder quality
The low temperature sintering technology is 500~600 DEG C of sintering temperature, 1~5h of sintering time.
Compared with existing slug type artificial stone technology of preparing, the present invention has substantial advance and technological innovation, specific body
It is present:
1) coupling agent modified by powder surface, the sintering activity of marble powder is increased substantially, so that marble powder can
With (500~600 DEG C) at low temperature sintering artificial stones, preparation process has the characteristics that energy conservation and environmental protection；
2) by addition bonding agent and filler, it is not only filled with the particulate interspaces of marble powder body, and make in sintering process
Chemical bonds are formed between marble powder granule, to significantly improve artificial stone sintered density and mechanical strength；
3) present invention is not added with other mineral or chemical products is made other than a small amount of sintering aid (bonding agent and filler)
For the raw material components of artificial stone, have the characteristics that marble powder utilization rate is high, resource-effective, low in cost.
In conclusion the present invention is by using powder surface modification, and adds a small amount of sintering aid, marble is significantly improved
Low cost may be implemented in the sintered density and mechanical strength of powder sintering activity and artificial stone, scale recycles Dali
The waste stone dust generated in stone process, preparation process is easy, and low-temperature sintering energy conservation has significant economical and environmentally friendly benefit.
Detailed description of the invention
Artificial stone fracture SEM pattern in 1 embodiment 2 of attached drawing
Artificial stone fracture SEM pattern in 2 embodiment 4 of attached drawing
Specific embodiment
Embodiment 1
120 mesh marble powder 10g are taken, the silane coupling agent KH560 methanol solution 2g that mass concentration is 5% is added,
Ball milling modification, Ball-milling Time 1h are carried out on planetary ball mill.Ball milling slurry is dry in 80 DEG C of baking ovens, and marble is then added
The low melting point silicate glass powder (melting temperature be 500 DEG C) of powder quality 1% and 3% neutral silica aqueous solution, grind
It is uniformly mixed, is dry, crossing 200 mesh screens, extrusion granulation under 100MPa, 200MPa pressure forming is rectangular specimen, and sample is in horse
Not 550 DEG C of sintering 2h in furnace, prepare slug type artificial marble.
Embodiment 2
The artificial stone sample prepared in embodiment 1 uses scanning electron microscope by grinding, polishing, fracture surface of sample pattern
It is observed, as shown in Fig. 1, there it can be seen that fracture is typical brittle fracture, and with the presence of a small amount of stomata.It utilizes
Archimedes's drainage test volume density and water absorption rate, respectively 2.5g/cm3With 3.4%；It is surveyed using ceramic Apparatus for Bending at low-temp
It has a try sample bending strength, is 32MPa.
Embodiment 3
120 mesh marble powder 10g are taken, the silane coupling agent KH560 methanol solution 2g that mass concentration is 5% is added,
Ball milling modification, Ball-milling Time 2h are carried out on planetary ball mill.Ball milling slurry is dry in 80 DEG C of baking ovens, and marble is then added
The Aluminum sol aqueous solution of powder quality 3%, 1% acid-washed asbestos and 4% 12500 mesh of partial size calcium carbonate powder, grinding
It is uniformly mixed, is dry, crossing 200 mesh screens, molding granulation under 100MPa, 200MPa pressure forming is rectangular specimen, and sample is in horse
Not 590 DEG C of sintering 2h in furnace, prepare slug type artificial marble.
Embodiment 4
The artificial stone sample prepared in embodiment 3 uses scanning electron microscope by grinding, polishing, fracture surface of sample pattern
It is observed, as shown in Fig. 2, there it can be seen that fracture is typical brittle fracture, but institutional framework is fine and close, does not observe
To stomata.Utilize Archimedes's drainage test volume density and water absorption rate, respectively 2.8g/cm3With 1.0%；Utilize ceramics
Apparatus for Bending at low-temp test sample bending strength is 48.6MPa.
Claims (3)
1. a kind of preparation method of modified marble powder low-temperature sintering artificial stone, feature comprise the following steps that:
1) after marble powder is dry, a small amount of surface modifier is added, carries out ball milling modification；
2) after dry in modified powder, a small amount of inorganic adhesive and filler is added, carries out mixing, be granulated, uniformly mixed
Close powder；
3) mixed powder pressure forming, drying, and be sintered at low temperature, obtain artificial stone；
Wherein, the marble powder is the marble powder of generation during cutting marble and grinding and polishing, and diameter of particle is less than 120
Mesh；
The marble powder surface modifier is organic alcoholic solution of epoxy silane coupling, and epoxy silane coupling makes
Dosage is the 0.5~2% of marble powder quality, and Organic Alcohol is methanol, ethyl alcohol or isopropanol.
2. a kind of preparation method of modified marble powder low-temperature sintering artificial stone according to claim 1, it is characterised in that:
The inorganic adhesive is in 500~600 DEG C of melting temperature of low melting point silicate glass powder, neutral silica solution, Aluminum sol
One or more kinds of combinations, usage amount is the 0.5~5% of marble powder quality；Filler is acid-washed asbestos, 12500 mesh of partial size
Calcium carbonate powder or combinations thereof, usage amount is the 1~5% of marble powder quality.
3. a kind of preparation method of modified marble powder low-temperature sintering artificial stone according to claim 1, it is characterised in that:
The low temperature sintering technology is 500~600 DEG C of sintering temperature, 1~5 h of sintering time.
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| CN201611016698.1A CN106747206B (en) | 2016-11-18 | 2016-11-18 | A kind of preparation method of modified marble powder low-temperature sintering artificial stone |
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| CN201611016698.1A CN106747206B (en) | 2016-11-18 | 2016-11-18 | A kind of preparation method of modified marble powder low-temperature sintering artificial stone |
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| CN106747206B true CN106747206B (en) | 2019-01-04 |
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| CN107879715A (en) * | 2017-11-22 | 2018-04-06 | 枣庄市博源人造石有限公司 | A kind of preparation method of modified marble powder low-temperature sintering artificial stone |
| CN110041007B (en) * | 2019-03-11 | 2022-04-01 | 武汉理工大学 | Anti-permeability marble powder composite admixture and application thereof |
| CN111393136A (en) * | 2020-03-25 | 2020-07-10 | 山东天马泰山机械集团有限公司 | Artificial stone and preparation method thereof |
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| CN103936285A (en) * | 2014-03-31 | 2014-07-23 | 南通大明玉新材料科技有限公司 | Production method of high-strength wear-resistant complex-phase poly-crystal engineering plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103936285A (en) * | 2014-03-31 | 2014-07-23 | 南通大明玉新材料科技有限公司 | Production method of high-strength wear-resistant complex-phase poly-crystal engineering plate |
Non-Patent Citations (1)
| Title |
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| 碳酸钙表面改性剂的研究进展;孙秋艳等;《天津化工》;20080731;第22卷(第4期);第8-11页 * |
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