CN102786286A - Preparation method of environment-friendly building decorating plate - Google Patents

Preparation method of environment-friendly building decorating plate Download PDF

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CN102786286A
CN102786286A CN2012102762640A CN201210276264A CN102786286A CN 102786286 A CN102786286 A CN 102786286A CN 2012102762640 A CN2012102762640 A CN 2012102762640A CN 201210276264 A CN201210276264 A CN 201210276264A CN 102786286 A CN102786286 A CN 102786286A
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pug
environment
aluminum oxide
plate preparation
hotchpotch
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CN102786286B (en
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单小兵
曹士同
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Jiangsu CN ecological materials Limited by Share Ltd
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CN CERAMIC (JIANGSU) Co Ltd
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Abstract

The invention discloses a preparation method of an environment-friendly building decorating plate. The preparation method comprises the following steps of: (1) drying, dehydrating, crushing and sieving silt and treating into pug with water content of less than or equal to 5 percent and average particle size of less than 425 mum; (2) adding an adulterant into the pug, wherein the adulterant is one or combination of white mud, white sand and aluminum oxide, and the weight ratio of the adulterant to the pug is 5-60:40-95, and then sieving with 40-mesh screen and uniformly dispersing through ball milling; and (3) forming the homogenized pug, drying at the temperature of 100-160 DEG C for 2-4 hours and finally sintering at the temperature of 1,000-13,00 DEG C for 4-6 hours to prepare the decorating plate. The silt of Lake Taihu is used as a main raw material, so that the problem of environmental pollution of the silt of Lake Taihu can be completely solved, and recycling and harmless treatment of the silt are realized.

Description

A kind of environment-friendly architecture ornament plate preparation method
Technical field
The invention belongs to the decorative panel for building field, specifically, relate in particular to a kind of technology of decorative panel for building that Taihu Lake mud is prepared into through mixing.
Background technology
Mud be organism, mud particles and other impurity hydrostatic or slowly in the flowing water environment through secular biochemical action formation of deposits.Mud contains more organism and heavy metal ion.The characteristics of mud are that natural aqueous rate is higher than liquid limit, and void ratio is greater than 1.0; Dry density is little; Compressibility is very high, and intensity is extremely low, often is in flow state.
Since the seventies in 20th century, the environmental problem that mud produces becomes increasingly conspicuous.Accelerate in Urbanization in China, urban population sharply increases, country drops under the ever-increasing promotion environmental protection cause; Wastewater treatment in China factory quantity increases year after year; Sewage treatment capacity improves constantly; Consequent mud has also kept growth by a relatively large margin, and is also more and more serious to the pollution of environment.With Taihu Lake is example, and Taihu Lake is the second largest freshwater lake of China, also is famous scenic spot.But in recent years, the Taihu Lake eutrophication is obvious, water quality deterioration, and the area in full lake 70% is covered by polluted sludge, and country all will spend a large amount of financial resources and handle Taihu Lake mud every year.At present, the processing mode to Taihu Lake mud adopts traditional air storage mode.This processing mode takies valuable land resources for a long time, and the heavy metal ion that contains in the mud can produce secondary pollution.
On the other hand, nation-building portion associated documents stipulate that clearly newly-built public building and dwelling house must reach energy-conservation 50% requirement, have forbidden or limited the production of the material of construction of high energy consumption.Therefore, development less energy-consumption New Building Materials are directions of future architecture material development.
For resource utilization and the direction innoxious and low-cost to material of construction, less energy-consumption that realizes mud develops, people's eye has turned to how mud is applied to material of construction at present, and does a lot of work on this basis.
Chinese patent ZL2137159.8 discloses a kind of brick made of mud and working method thereof.This invention can solve the secondary pollution problem fast and effectively with the mud resource utilization.
Chinese patent ZL200910152565.0 discloses a kind of more economical and energy-conservation brick made of mud; With river silt, cinder, flyash is main raw material; Behind sintering, insert and added gathering of fire retardant stupid vinylic foam or foamed by Polyurethane, the external form of brick is the right angle hexahedron, with the brick body of the outline specification basically identical of traditional brick; Compare present common commentaries on classics and have fine particles, characteristics such as sand cut is few, plasticity-is high, bonding force is strong, drying sensitivity is good and shrinking percentage is big.
But because above two kinds of patents have all been used solidifying agent in production technique, will consume a large amount of industrial chemicals, production cost is higher, and the intensity of the brick of producing is lower, haves much room for improvement.
In order to solve the problem that production technique uses solidifying agent to cause wastage of material to cause production cost to improve, Chinese patent ZL 200610040094.0 discloses a kind of method of utilizing Taihu Lake mud to produce building brick.This method comprises dewaters, adds cinder, carries out homogenizing and handle, carry out ageing and handle, process wet adobe, let wet adobe seasoning and dried brick carried out step such as roasting with vacuum extruder the mud that digs out; Changed with the traditional brick-making method of pure clay as raw material; Adopting pure sludge and cinder is that raw material carries out brickmaking; Do not need clay; Not only can not destroy the arable land, can not cause and fall into disuse, also can solve sludge treatment problem in the rivers,lakes and seas desilting process, avoid, but this invented technology process be complicated, consuming time longer because mud is piled up the face of land or ploughed and go up destruction that the arable land is caused and the pollution that environment is brought to the arable land; Therefore be not suitable for large-scale production, have much room for improvement.
Summary of the invention
The present invention is for to above-mentioned technical problem, a kind of energy-conserving and environment-protective is provided, technological process is simple, intensity is high, be fit to the environment-friendly architecture ornament plate preparation method of scale operation.
The present invention provides following technical scheme for solving the problems of the technologies described above: a kind of environment-friendly architecture ornament plate preparation method is characterized in that may further comprise the steps:
(1) with mud drying and dehydrating, fragmentation and the processing of sieving, is treated to water ratio≤5% and median size pug less than 425 μ m;
(2) in pug, add hotchpotch, described hotchpotch is a kind of or combination of white clay, white sand, aluminum oxide, and weight ratio 5 ~ 60:40 ~ 95 of hotchpotch and pug are crossed 40 eye mesh screens then and carried out homodisperse through ball milling;
(3) with the mud material forming after the homogenizing, be 100 ℃-160 ℃ in temperature and carried out dry 2-4 hour, at temperature 1000-1300 ℃ of following sintering 4-6 hour, make decorative sheet at last.
Described thermogravimetic analysis (TGA) is the prior art analytical procedure, and thermogravimetric analysis refers under temperature program(me) control, the technology of the relation between measurement of species quality and the temperature.Here what deserves to be mentioned is that the variation rather than the weight change that are defined as quality are based under the action of a magnetic field, strong magnetic material though there is not quality change, has apparent loss in weight when reaching Curie temperature.Thermogravimetric analysis then refers to observe sample substantial quality change in receiving thermal process.
The used instrument of thermogravimetric analysis is a thermobalance, and its ultimate principle is, example weight changes caused balance displacement and changes into electromagnetic quantities, after this small electric weight amplifies through magnifying glass, and the registering instrument record of making a gift to someone; And the size of electric weight is proportional to the weight change amount of sample.When measured matter had distillation, vaporizes, decomposites gas or loses crystal water in heat-processed, tested material mass will change.At this moment thermogravimetric curve just is not straight line but descends to some extent.Through analyzing thermogravimetric curve, just can know that measured matter changes when what are spent, and, can calculate and lose how many materials (like the crystal water among the CuSO45H2O) according to weight loss.We just can know that 5 crystal water the CuSO45H2O divided for three steps sloughed from thermogravimetric curve.TGA can obtain the information of the hot rerum natura aspect that thermal distortion produced of sample.
Thermogravimetric analysis can be divided into two types usually: dynamic method and stationary method.
1, stationary method: comprise that isobaric mass-change determination and isothermal quality change mensuration.Isobaric mass-change determination is meant that under programed temperature measurement of species is depressed a kind of method of quality of balance and temperature relation at constant volatile matter branch.Isothermal quality change to be measured a kind of method that is meant measurement of species quality and temperature relation under constant temperature.This method accuracy is high, and is time-consuming.
2, dynamic method: be exactly thermogravimetric analysis and the difference quotient thermogravimetric analysis that we often say.Derivative thermogravimetric analysis (Derivative Thermogravimetry is called for short DTG) is claimed in the difference quotient thermogravimetric analysis again, and it is that the TG curve is to the temperature first order derivative of (or time).Quality change speed (dm/dt) with material is mapped to temperature T (or time t), promptly gets the DTG curve.
As of the present invention preferred, pug carries out thermogravimetic analysis (TGA) to pug after adding hotchpotch, adjusts the weight ratio of hotchpotch and pug again, makes the pug after the doping be no more than 16% in room temperature to 550 ℃ weightlessness, is no more than 18% in room temperature to 1000 ℃ weightlessness.
As of the present invention preferred, described hotchpotch is an aluminum oxide, and the weight ratio of aluminum oxide and pug is 5 ~ 10:90 ~ 95.
As of the present invention preferred; Described hotchpotch is the compsn of white clay, white sand, aluminum oxide; The weight ratio of white clay, white sand, aluminum oxide and pug is that the weight ratio of white clay, white sand, aluminum oxide and pug is 15 ~ 25:25:10:40 ~ 50, and the weight ratio that white clay, white sand, aluminum oxide and pug preferably are set is 25:25:10:40 or 15:25:10:50.
As of the present invention preferred, described mud material forming mode is compression moulding or extrusion moulding.
Beneficial effect of the present invention: 1. preparing method's ether lake silt of the present invention is a main raw material, can thoroughly solve Taihu Lake mud environmental pollution problem, the resource utilization of realization mud, innoxious.
2. preparation method of the present invention can select compression moulding for use, therefore need not ageing and handles, and the decorative sheet base substrate moisture that compacting obtains is low, can go into kiln and burn soon, and operation sequence is simple, and is with short production cycle.
3. preparation method of the present invention adopts doping treatment, can regulate its sintering temperature, thereby effectively eliminates because the blistered problem of sintering that Taihu Lake mud organic content height brings.
4. preparation method of the present invention can prepare the decorative panel for building with different physical characteristics through adjustment doping component and ratio.
Embodiment
Embodiment 1:A kind of environment-friendly architecture ornament plate preparation method; Get that some mud carry out drying and dehydrating, fragmentation and the processing of sieving, with sludge treatment be water ratio Zai ≦ 5% and median size less than the pug of 425 μ m, above-mentioned pug is added hotchpotch; The back pug that will mix then carries out the organism test; Be differential thermal analysis, the weight ratio of adjustment adulterant oxidation aluminium and pug is 5:95, thereby the back pug that will mix is no more than 16% in room temperature to 550 ℃ weightlessness; Be no more than 18% in room temperature to 1000 ℃ weightlessness; Carry out homodisperse through 40 eye mesh screens and through ball milling then, preferably take by weighing and mix back powder 200 g, use the rectangle grinding tool to press down and process 149.6 * 64.6 * 11.0 mm at 40 MPa pressure 3Decorative sheet; Be 100 ℃ ~ 160 ℃ in temperature and carried out dry 2-4 hour, at 1000 ~ 1300 ℃ of following sintering 4-6 of temperature hours, it was positioned over 120 ℃ of oven dryings 2 hours at last; In top temperature is 1170 ℃ kiln, accomplish at last total time and be 4 hours sintering, make decorative sheet.
Embodiment 2:
With reference to the preparation method of embodiment 1, the weight ratio of adjustment adulterant oxidation aluminium and pug is 10:90, carries out weighing according to the above ratio, and all the other are constant, make decorative sheet.
Embodiment 3:
With reference to the preparation method of embodiment 1, the weight ratio 25:25:10:40 of adjustment hotchpotch white clay, white sand, aluminum oxide and pug carries out weighing according to the above ratio, and all the other are constant, make decorative sheet.
Embodiment 4:
With reference to the preparation method of embodiment 1, the weight ratio 15:25:10:50 of adjustment hotchpotch white clay, white sand, aluminum oxide and pug carries out weighing according to the above ratio, and all the other are constant, make decorative sheet.
Below measure through using instruments such as laser particle size distribution instrument, compressive strength test machine and ceramic water-intake rate determinator for the physicals behind the foregoing description 1 ~ 4 and the prior art common building decorative sheet sintering, as shown in table 1.
Product performance contrast behind table 1 sintering:
Figure 350887DEST_PATH_IMAGE001

Claims (9)

1. environment-friendly architecture ornament plate preparation method is characterized in that may further comprise the steps:
(1) with mud drying and dehydrating, fragmentation and the processing of sieving, is treated to water ratio≤5% and median size pug less than 425 μ m;
(2) in pug, add hotchpotch, described hotchpotch is a kind of or combination of white clay, white sand, aluminum oxide, and weight ratio 5 ~ 60:40 ~ 95 of hotchpotch and pug are crossed 40 eye mesh screens then and carried out homodisperse through ball milling;
(3) with the mud material forming after the homogenizing, be 100 ℃-160 ℃ in temperature and carried out dry 2-4 hour, at temperature 1000-1300 ℃ of following sintering 4-6 hour, make decorative sheet at last.
2. a kind of environment-friendly architecture ornament plate preparation method according to claim 1; After it is characterized in that pug adds hotchpotch; Pug is carried out thermogravimetic analysis (TGA); Adjust the weight ratio of hotchpotch and pug again, make the pug after the doping be no more than 16%, be no more than 18% in room temperature to 1000 ℃ weightlessness in room temperature to 550 ℃ weightlessness.
3. according to the said a kind of environment-friendly architecture ornament plate preparation method of claim 2, it is characterized in that described hotchpotch is an aluminum oxide.
4. according to the said a kind of environment-friendly architecture ornament plate preparation method of claim 3, the weight ratio that it is characterized in that aluminum oxide and pug is 5 ~ 10:90 ~ 95.
5. according to the said a kind of environment-friendly architecture ornament plate preparation method of claim 2, it is characterized in that described hotchpotch is the compsn of white clay, white sand, aluminum oxide.
6. according to the said a kind of environment-friendly architecture ornament plate preparation method of claim 5, the weight ratio that it is characterized in that white clay, white sand, aluminum oxide and pug is 15 ~ 25:25:10:40 ~ 50.
7. according to the said a kind of environment-friendly architecture ornament plate preparation method of claim 5, the weight ratio that it is characterized in that white clay, white sand, aluminum oxide and pug is 15:25:10:50.
8. according to the said a kind of environment-friendly architecture ornament plate preparation method of claim 5, the weight ratio that it is characterized in that white clay, white sand, aluminum oxide and pug is 25:25:10:40.
9. according to the said a kind of environment-friendly architecture ornament plate preparation method of claim 1, it is characterized in that described mud material forming mode is compression moulding or extrusion moulding.
CN 201210276264 2012-08-06 2012-08-06 Preparation method of environment-friendly building decorating plate Active CN102786286B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000282399A (en) * 1998-12-11 2000-10-10 Ibiden Co Ltd Composite hardened material and composite building material
JP2001131900A (en) * 1998-12-11 2001-05-15 Ibiden Co Ltd Composite cured material and composite building material
CN101955368A (en) * 2010-04-20 2011-01-26 无锡南理工科技发展有限公司 Alumina fiber-reinforced porous ceramic product and method for manufacturing product by using silt
CN101994281A (en) * 2009-08-13 2011-03-30 山东泰山抽水蓄能电站有限责任公司 Antique brick and production method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000282399A (en) * 1998-12-11 2000-10-10 Ibiden Co Ltd Composite hardened material and composite building material
JP2001131900A (en) * 1998-12-11 2001-05-15 Ibiden Co Ltd Composite cured material and composite building material
CN101994281A (en) * 2009-08-13 2011-03-30 山东泰山抽水蓄能电站有限责任公司 Antique brick and production method thereof
CN101955368A (en) * 2010-04-20 2011-01-26 无锡南理工科技发展有限公司 Alumina fiber-reinforced porous ceramic product and method for manufacturing product by using silt

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Address after: Yixing City Lanshan dingshuzhen village 214224 Jiangsu city of Wuxi Province

Patentee after: Jiangsu CN ecological materials Limited by Share Ltd

Address before: Yixing City Lanshan dingshuzhen village 214224 Jiangsu city of Wuxi Province

Patentee before: CN Ceramic (Jiangsu) Co., Ltd.