CN106747206A - 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 PDF

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Publication number
CN106747206A
CN106747206A CN201611016698.1A CN201611016698A CN106747206A CN 106747206 A CN106747206 A CN 106747206A CN 201611016698 A CN201611016698 A CN 201611016698A CN 106747206 A CN106747206 A CN 106747206A
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powder
marble powder
marble
artificial stone
low
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CN201611016698.1A
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CN106747206B (en
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卢金山
丛欣泉
吕洪波
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Nanchang Hangkong University
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Nanchang Hangkong University
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24Compositions 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
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use 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
    • C04B20/10Coating or impregnating
    • C04B20/1051Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/005Compositions 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
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20Mortars, concrete or artificial stone characterised by specific physical values for the density
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, 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)
  • Finishing Walls (AREA)

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.The present invention, by powder-modified, adds a small amount of inorganic adhesive and filler, batch mixing, granulation, pressure forming, under low temperature with marble powder as raw material(500~600 DEG C)Sintering, prepares bending strength for 30 50 MPa slug type artificial stones.The present invention has that marble powder utilization rate is high, technique is easy, excellent performance, adjustable article shape the features such as, marble powder scale, high value added utilization are capable of achieving, with significantly economical and environmentally friendly benefit.

Description

A kind of preparation method of modified marble powder low-temperature sintering artificial stone
Technical field
The present invention relates to the method that marble powder sintering prepares artificial stone, the marble powder low-temperature sintering that is particularly modified is artificial The method of stone, belongs to architectural decoration material field.
Background technology
With socio-economic development, as ornamental lithotome(Mainly marble and granite)Demand is quick Increase, more than 10%, stone industries occupy consequence to annual growth in global economy.Produced in stone machining processing The a large amount of waste materials of life, are broadly divided into two classes:One is offcut, and two is waste stone dust.According to statistics, 2.5 tons of lithotomes are often produced to produce Raw waste material of stone is about that scrap rate is about 20-30% in process for 1 ton, i.e. lithotome.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 is recycled and is still within the exploratory stage, and larger-size Masonry Scrap can be cut into different shape Small dimension face brick, mosaic or parquets stone material(CN 88100494 A)With ice line marble(CN 104526887 A)It is contour additional Value decorative panel, decoratees for positions such as corridor, flower stand, toilets and decorates;The smaller leftover pieces of size add bonding agent after broken, May be alternatively configured terrazzo or compound stone with different decorative patterns(CN 101774782 A).Domestic and foreign scholars have studied waste material of stone work Be the application of cement and aggregate, such as marble waste residue as concrete coarse aggregate, can substitute completely sand, basalt, Granite or limestone(A André 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 that are produced during processing of stone cutting, grinding and polishing, sintering clay is mainly used in The filler of brick and tile and self-compacting concrete(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. analyzes Marble processing sawdust(Powder)Particle diameter, specific surface area, Colourity 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, with color and luster it is abundant, hardness is high, not easy damaged, corrosion-resistant, high temperature resistant, easy to clean Etc. characteristic.The main metaling with natural marble or granite of artificial stone as inserts, with cement/concrete, gypsum, water Glass, resin etc. are binding agent, by being made finished product after material mixing, molding, grinding and polishing(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 formed by physical bonds under normal temperature or low temperature, its Mechanical strength is less than natural stone.Resin type artificial stone physics, stable chemical performance, decorative pattern is easily designed, but price is of a relatively high, Easy aging deformation;Cement mo(u)ld is generally the least expensive, but corrosion resistance is poor, micro-crack easily occurs, is suitable only for making sheet material.
It is by feldspar, quartz, pyroxene, calcite in powder and ground hematite and a small amount of additionally, an also class slug type artificial stone Kaolin etc. mixes, and blank is prepared with puddling, dry pressure formed with half, with 1000 DEG C of high temperature above sintering in kiln Into.Using various industrial residues(Such as slag, slag)Melted at high temperature with industrial chemicals, be molded, Annealing Crystallization under low temperature, system Standby crystallizing glass decoration board is a kind of artificial stone, but its complex process, price are high.
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 big Reason stone powder is raw material, by powder surface modification, adds a small amount of bonding agent and filler, and artificial stone is sintered under low temperature.Present invention tool Have that marble powder utilization rate is high, article shape is adjustable, energy-conserving and environment-protective the features such as, be conducive to extending processing of stone industrial chain, realize The efficient utilization of waste stone dust, cultivates new profit growth point, promotes rock material resource Sustainable Development and Utilization.
The content of the invention
It is an object of the invention to provide a kind of preparation method of utilization marble powder low-temperature sintering artificial stone, and artificial stone Performance is suitable with lithotome.The present invention with marble powder as raw material, by the coupling agent modified of powder surface so that stone flour Grain surface forms the largely functional group with sintering activity high.Formed between bonding agent makes marble powder granule in sintering process Firm interfacial bond is combined, and filler is filled with hole between powder granule, so as to prepare with the bulk density of lithotome, The suitable artificial stone of the performance indications such as water absorption rate, rupture 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, its It is characterised by being realized by following processing step:
1)After marble powder is dried, a small amount of surface modifier is added, carry out ball milling modification;
2)After being dried in modified powder, a small amount of bonding agent and filler are added, carry out batch mixing, granulation, obtain uniform mixed powder Body;
3)Mixed powder pressure forming, drying, and sinter at low temperature, obtain artificial stone.
Described waste stone dust is the stone flour of generation during cutting marble and grinding and polishing, and diameter of particle is less than 120 mesh.
Described marble powder surface modifier is organic alcoholic solution of epoxy silane coupling, and coupling agent usage amount is The 0.5~2% of marble powder quality, Organic Alcohol is methyl alcohol, ethanol or isopropanol.
Described bonding agent is low melting point silicate glass powder(500~600 DEG C of melt temperature), Ludox, in Alumina gel One or more combination, usage amount for marble powder quality 0.5~5%;Described filler is acid-washed asbestos, particle diameter The calcium carbonate powder of 12500 mesh or its combination, usage amount is the 1~5% of marble powder quality
Described low temperature sintering technology is 500~600 DEG C of sintering temperature, the h of sintering time 1~5.
Compared with existing slug type artificial stone technology of preparing, the present invention has substantial advance and technological innovation, specific body Now:
1)It is coupling agent modified by powder surface, increase substantially the sintering activity of marble powder so that marble powder can be Under low temperature(500~600 DEG C)Sintering artificial stone, the characteristics of preparation technology has energy-conserving and environment-protective;
2)By adding bonding agent and filler, the particulate interspaces of marble powder body are not only filled with, and make Dali in sintering process Chemical bonds are formed between stone powder granule, so as to significantly improve artificial stone sintered density and mechanical strength;
3)The present invention is except a small amount of sintering aid(Bonding agent and filler)Outside, other mineral or chemical products are not added with as people Make the raw material components of stone, with marble powder utilization rate is high, resources conservation, it is with low cost the features such as.
In sum, the present invention is by using powder surface modification, and adds a small amount of sintering aid, significantly improves marble The sintered density and mechanical strength of powder sintering activity and artificial stone, it is possible to achieve low cost, scale recycle Dali The waste stone dust produced in stone process, preparation technology is easy, low-temperature sintering energy-conservation, with significantly economical and environmentally friendly benefit.
Brief description of the drawings
Accompanying drawing 1 is artificial stone fracture SEM shape appearance figure in embodiments of the invention 2.
Accompanying drawing 2 is artificial stone fracture SEM shape appearance figure in embodiments of the invention 4.
Specific embodiment
Embodiment 1
The g of 120 mesh marble powder 10 is taken, the g of silane coupler KH560 methanol solutions 2 that mass concentration is 5% is added, in planet Ball milling modification is carried out on ball mill, Ball-milling Time is 1 h.Ball milling slurry is dried in 80 DEG C of baking ovens, is subsequently adding marble powder The low melting point silicate glass powder of weight 1%(Melt temperature is 500 DEG C)Neutral silica aqueous solution with 3%, ground and mixed Uniformly, dry, cross 200 eye mesh screens, extruder grain under 100 MPa, 200 MPa pressure formings are rectangular specimen, and sample is in Muffle 550 DEG C of 2 h of sintering, prepare slug type artificial marble in stove.
Embodiment 2
The artificial stone sample prepared in embodiment 1 is carried out by grinding, polishing, fracture surface of sample pattern using SEM Observation, as shown in Figure 1, there it can be seen that fracture is typical brittle fracture, and with the presence of a small amount of stomata.Using A Ji Mead drainage test volume density and water absorption rate, respectively 2.5 g/cm3With 3.4%;Tested using ceramic Apparatus for Bending at low-temp and tried Sample bending strength, is 32 MPa.
Embodiment 3
The g of 120 mesh marble powder 10 is taken, the g of silane coupler KH560 methanol solutions 2 that mass concentration is 5% is added, in planet Ball milling modification is carried out on ball mill, Ball-milling Time is 2 h.Ball milling slurry is dried in 80 DEG C of baking ovens, is subsequently adding marble powder The calcium carbonate powder of the Alumina gel aqueous solution, 1% acid-washed asbestos and 4% mesh of particle diameter 12500 of weight 3%, ground and mixed is equal It is even, dry, 200 eye mesh screens are crossed, molding, granulating under 100 MPa, 200 MPa pressure formings are rectangular specimen, and sample is in Muffle furnace In 590 DEG C sintering 2 h, prepare slug type artificial marble.
Embodiment 4
The artificial stone sample prepared in embodiment 3 is carried out by grinding, polishing, fracture surface of sample pattern using SEM Observation, as shown in Figure 2, there it can be seen that fracture is typical brittle fracture, but institutional framework is fine and close, and gas is not observed Hole.Using Archimedes's drainage test volume density and water absorption rate, respectively 2.8 g/cm3With 1.0%;Bent using ceramics Testing machine test sample bending strength, is 48.6 MPa.

Claims (5)

1. a kind of preparation method of modified marble powder low-temperature sintering artificial stone, its feature is comprised the following steps that:
1)After marble powder is dried, a small amount of surface modifier is added, carry out ball milling modification;
2)After being dried in modified powder, a small amount of inorganic adhesive and filler are added, carry out batch mixing, granulation, uniformly mixed Close powder;
3)Mixed powder pressure forming, drying, and sinter at low temperature, obtain artificial stone.
2. the preparation method of a kind of marble powder low-temperature sintering artificial stone according to claim 1, it is characterised in that:It is described Marble powder is the stone flour of generation during cutting marble and grinding and polishing, and diameter of particle is less than 120 mesh.
3. the preparation method of a kind of modified marble powder low-temperature sintering artificial stone according to claim 1, it is characterised in that: Described marble powder surface modifier is organic alcoholic solution of epoxy silane coupling, and coupling agent usage amount is marble powder The 0.5~2% of quality, Organic Alcohol is methyl alcohol, ethanol or isopropanol.
4. the preparation method of a kind of marble powder low-temperature sintering artificial stone according to claim 1, it is characterised in that:It is described Inorganic adhesive be low melting point silicate glass powder(500~600 DEG C of melt temperature), neutral Ludox, in Alumina gel one Plant or two or more combinations, usage amount is the 0.5~5% of marble powder quality;Filler is acid-washed asbestos, the carbon of the mesh of particle diameter 12500 Sour calcium powder body or its combination, usage amount is the 1~5% of marble powder quality.
5. the preparation method of a kind of modified marble powder low-temperature sintering artificial stone according to claim 1, it is characterised in that: Described low temperature sintering technology is 500~600 DEG C of sintering temperature, the h of sintering time 1~5.
CN201611016698.1A 2016-11-18 2016-11-18 A kind of preparation method of modified marble powder low-temperature sintering artificial stone Active CN106747206B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN110041007A (en) * 2019-03-11 2019-07-23 武汉理工大学 A kind of impervious marble powder composite blend and its application
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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)

* Cited by examiner, † Cited by third party
Title
孙秋艳等: "碳酸钙表面改性剂的研究进展", 《天津化工》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN110041007A (en) * 2019-03-11 2019-07-23 武汉理工大学 A kind of impervious marble powder composite blend and its application
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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