CN109678349A - A method of foam glass is prepared using post-consumer glass and porous ceramic grain - Google Patents
A method of foam glass is prepared using post-consumer glass and porous ceramic grain Download PDFInfo
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- CN109678349A CN109678349A CN201910136496.8A CN201910136496A CN109678349A CN 109678349 A CN109678349 A CN 109678349A CN 201910136496 A CN201910136496 A CN 201910136496A CN 109678349 A CN109678349 A CN 109678349A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C11/00—Multi-cellular glass ; Porous or hollow glass or glass particles
- C03C11/007—Foam glass, e.g. obtained by incorporating a blowing agent and heating
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/08—Other methods of shaping glass by foaming
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/02—Pretreated ingredients
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Abstract
The invention discloses a kind of methods for preparing foam glass using post-consumer glass and porous ceramic grain, specifically includes the following steps: hydrotalcite-like materials are made using manganese nitrate, aluminum nitrate, urea as raw material first, it is mixed to prepare foaming agent with silicon carbide；Porous ceramics is made using plant powder, zeolite powder, polyvinyl alcohol, deionized water, montmorillonite, aluminium nitride fibres, urea as raw material, finally using post-consumer glass powder, modified porous haydite, fluxing agent, foaming agent, rush infusion as raw material, by green body is made the step of ground and mixed, compression moulding, green body is placed in Muffle furnace, it is sintered, foam glass is made.Not only mechanical property is good for foam glass produced by the present invention, and the heat-proof quality that absorbs sound is good.
Description
Technical field:
The present invention relates to glass preparation field, it is specifically related to a kind of prepare foam glass using post-consumer glass and porous ceramic grain
The method of glass.
Background technique:
Foam glass is a kind of made specific glass material, it can be by quantitative cullet, foaming agent and addition
Agent etc. is formed uniformly batch by being pulverized and mixed, is put into mold, using techniques systems such as preheating, melting, foaming, annealing
?.The density and the porosity of commercial foam glass product are respectively 0.1-0.3g/cm3And 85-95%.Foam glass has light
Many excellent performances such as high-strength, cold insulation, waterproof and anticorrosion, nontoxic non-ignitable, chemical stabilization, the antibacterial, ecological, environmental protective of insect prevention.Together
When it also has that transportation cost is low, easy processing installation concurrently, be well combined equal commercial advantages with cement.All these performances make foam
Glass has irreplaceable role in many fields such as low temperature is heat-insulated, pipeline protection, noise elimination noise reductions.According to batch processing
The difference of process system, foam glass may have closed non-interconnected hole or part intercommunicating pore, and even air hole distribution, size are micro-
It is small, it is a kind of uniform gas phase and solid system.Decentralized medium (frit) of its gaseous dispersed phase distribution in small volume
In.According to the chemical component difference of foaming agent used, carbon dioxide, carbon monoxide, two are typically contained in the gas phase of foam glass
One kind of sulfur oxide, hydrogen sulfide, vapor, oxygen, nitrogen etc. contains several gases simultaneously.The chemical component of glass phase usually with
The chemical component of bare glass powder is consistent, and structure is similarly random network structure, shows as isotropism on macro property.
The raw material for being initially used to prepare foam glass are the specially designed glass of ingredient, are especially directly injected into gas
Raw material used by body method, it is desirable that more stringent, this, which is just doomed this method, to be used widely.It uses now
Powder sintered rule can use the solid waste such as a large amount of recycling scrap glass powder and prepare bubble at a lower temperature
Foam glass product can sometimes be processed using scrap glass completely.The preparation of foam glass can be by making in this way
Green production is realized with various types of scrap glasses, and huge economic benefit is realized by the recycling and reusing of waste.
In order to meet certain fields to the special high request of the certain performances of product, made sometimes using chemistry pure material as original glass material
The foam glass product of standby particular characteristic.Can be used as foam glass raw material glass waste have plate glass,
Container glass, the borate glass of chemical industry, cathode-ray tube glass and some daylight lamp lens etc..
Chinese patent (200710012107.8), which discloses, a kind of using boron mud to be done raw material to prepare foam glass and mosaic tile double
The method of laminate, detailed process are as follows: cullet is crushed, is mixed in proportion with de-magging boron mud；It is ground into raw material；By raw material plus
Glass powder is ground into after heat, quenching, drying；Quantitative glass powder and foaming agent, cosolvent and foam stabilizer is taken to be mixed to form foam
Glassy layer ingredient；Quantitative glass powder and pigment, fluxing agent is taken to be mixed to form mosaic tile layered material；By mosaic tile layered material and foam glass layer
Material is put into mold in order, compression moulding: heated foaming, foam stabilizing anneal to obtain foam glass mosaic tile.Product of the present invention one
Layer be foam glass phase, the difunctional composite material that another layer is mosaic tile phase, it solves foam glass because of its porosity and color
The problem of coloured silk unevenly cannot be directly as building decoration materials, in addition the present invention can reduce the cost of foam glass mosaic tile,
Whole process does not have waste discharge, and greening, protection environment belong to environment friendly technology.But glass made from this method
Intensity is inadequate.Chinese patent (201810162114.4) disclose it is a kind of prepare foam glass-aerogel heat-insulating material method,
Detailed process are as follows: cullet are first mixed to foaming processing after foam stabilizer, foaming agent molding drying is added with flyash, foam is made
Then glass is calcined with flyash and sodium carbonate, the stirring in acid solution of calcined powder prepares silica solution, finally by foam
Glass matrix is put into container, and silica solution is added after vacuumizing, compound with glass matrix, and it is anti-to be subsequently placed at progress gel in baking oven
Foam glass-wet gel complex should be made, soaked after last aging with the mixed solution of trim,ethylchlorosilane, ethyl alcohol and hexamethylene
Bubble carries out surface modification, dry, obtained foam glass-aerogel heat-insulating material.Flyash is doped into cullet by the present invention
Foam glass is prepared by high temperature foaming, while reducing material preparation cost, realizes the recycling benefit of solid waste
With simultaneously two kinds of materials are combined by vacuum impregnation technique, foam glass heat insulation can be made further to be promoted and be made
Aerogel products obtain the additional of mechanical strength.But airsetting gel coating made from this method and foam base plate are easy because of binding force
Not enough, poor so as to cause the durability of material.
Summary of the invention:
Post-consumer glass and porous ceramic grain preparation bubble are utilized in view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of
The method of foam glass, this method are added directly into porous ceramic grain in the raw material of foam glass preparation, and ingredient is successively carried out
The techniques such as mixing, compression moulding, preheating, melting, foaming, annealing are made, and solve and bubble is made using coating method in the prior art
Easily there is a phenomenon where coatings and glass matrix to fall off in foam glass.
To achieve the above object, the invention adopts the following technical scheme:
A method of foam glass is prepared using post-consumer glass and porous ceramic grain, comprising the following steps:
(1) manganese nitrate, aluminum nitrate are dissolved in deionized water and metal ion solution is made, and metal ion solution is placed in
In reaction kettle, urea liquid is added, after being stirred, sealing reacts 7-12h at 120 DEG C, is cooled to room after reaction
Temperature, filtering, is dried in vacuo after solid is cleaned, and manganese/aluminium hydrotalcite-like materials are made；By hydrotalcite-like materials obtained and carbonization
Foaming agent is made in silicon mixed grinding；
(2) corn stover shearing crushed, grind obtained plant powder；By plant powder, zeolite powder, polyvinyl alcohol, go
Ionized water is uniformly mixed, and spherical particle is made；The mixing of montmorillonite, aluminium nitride fibres, urea and deionized water is wrapped in spherical
Green body is made in particle surface, and green body is placed in Muffle furnace first at 200 DEG C and is pre-sintered processing 50min, then at 600 DEG C
Constant temperature handles 1h, and finally constant temperature handles 30min at 1000 DEG C, cools to room temperature with the furnace, and porous ceramics is made；By porous ceramics
It is placed in cerous nitrate aqueous solution, urea is added and stirs to urea and dissolves, reaction solution is made, places reaction liquid into 120 in reaction kettle
5h is reacted at DEG C, is cooled to room temperature modified porous haydite is made later；
(3) it will be filled after post-consumer glass powder, modified porous haydite, fluxing agent, foaming agent, rush infusion mixed grinding sieving processing
Enter compression moulding in mold, green body is placed in Muffle furnace, constant temperature at 200 DEG C is warming up to the heating rate of 20 DEG C/min first
30min is handled, 500 DEG C of constant temperature processing 30min are then warming up to the heating rate of 10 DEG C/min, with the heating speed of 5 DEG C/min
Rate is warming up to 950 DEG C of constant temperature processing 10-50min, is then cooled to 500 DEG C with the rate of temperature fall of 20 DEG C/min, finally with 1 DEG C/
The rate of temperature fall of min is cooled to 200 DEG C, then cools to room temperature with the furnace, and foam glass is made.
As a preferred embodiment of the above technical solution, in step (1), in metal ion solution, the concentration point of manganese nitrate, aluminum nitrate
It Wei not 1.5-3.5mol/L, 4.3-5.5mol/L.
As a preferred embodiment of the above technical solution, in step (1), the mass concentration of urea liquid is 5%, urea and aluminum nitrate
Molar ratio be 0.24:(1.5-2.5).
As a preferred embodiment of the above technical solution, in step (1), the hydrotalcite-like materials, silicon carbide mass ratio be
(3.25-5.13): 1.
As a preferred embodiment of the above technical solution, in step (2), in parts by weight, plant powder, zeolite powder, polyvinyl alcohol,
Montmorillonite, aluminium nitride fibres, urea specific dosage be plant powder 20-45 parts, 1-5 parts of zeolite powder, 3-7 parts of polyvinyl alcohol,
1-3 parts of montmorillonite, 0.5-2.5 parts of aluminium nitride fibres, 0.1-0.4 parts of urea.
As a preferred embodiment of the above technical solution, in step (2), the porous ceramics, cerous nitrate, urea mass ratio be
10:(0.013-0.067): 0.3.
As a preferred embodiment of the above technical solution, in step (2), the mass concentration of the cerous nitrate aqueous solution is 13%.
As a preferred embodiment of the above technical solution, in step (3), the fluxing agent is borax.
As a preferred embodiment of the above technical solution, in step (3), the rush infusion is potassium nitrate.
As a preferred embodiment of the above technical solution, in step (3), in parts by weight, the dosage of each component is respectively waste and old glass
80-100 parts of glass powder, 1-1.5 parts of fluxing agent, 1-5 parts of foaming agent, promotees infusion 1-3 parts at modified porous 2-6 parts of ceramics.
The invention has the following advantages:
The type and particle size of foaming agent have a certain impact to pore opening and the foaming effect tool of foam glass,
Hydrotalcite-like materials are made using the method for hydrothermal synthesis in the present invention, urea and form uniform solution with manganese nitrate, aluminum nitrate,
Urea decomposition at a certain temperature can produce hydroxyl and carbonate and metal ion forms regular appearance, uniform nanometer class water
Talc materials；The present invention is using nano hydrotalcite material and silicon carbide as foaming agent, and nano hydrotalcite material is at 200 DEG C
The crystallization water and interlayer hydrone can be lost below, and interlayer structure can destroy at 300-500 DEG C, form solid solution, can enhance
In glass matrix, at a higher temperature, the carbonate of interlayer can be removed, equally distributed stomata can be produced, stomata is steeping
Semi-connected structure is formed in foam glass.
The present invention is made spherical particle with plant powder, zeolite powder, polyvinyl alcohol, deionized water and then coats on its surface
Montmorillonite, aluminium nitride fibres, urea mixture, at a certain temperature processing will form disconnected poroid ceramic material, plant
Object powder and zeolite powder are porous shaped activated carbon and zeolite powder composite material after material internal sintering, and outside is that cellular nitrogenizes
Aluminium, sieve and silica-sesquioxide composite material；Internal layer is not connected to the hole of outer layer, so that porous ceramics intensity obtained is big, is added to
The heat-insulated and mechanical property of matrix can be effectively improved in glass matrix.
The present invention is before sintering first pressed green body, excludes middle gas in mixed-powder, pressed base
Body has the melt structure of uniform compact, and sintered product has evenly arranged stomata, and the present invention effectively adjusts sintered bar
Part guarantees temperature gradient relatively uniform inside and outside green body during the sintering process, prevents from making inside glass when heating rate is excessive
Biggish micro-crack is formed, the present invention pre-processes at 200 DEG C first, so that the consistency of green body effectively improves,
Then constant temperature processing is carried out at 500 DEG C, prefoam forms the bubble of fine uniform inside vitreum, then heats to more
High temperature foaming, bubble becomes larger firm；The time of each sintering temperature and constant temperature processing shape in foam glass body again
At semi-connected firm uniform bubble, so that foam glass compression strength obtained is big, sound absorption heat-proof quality is good.
Specific embodiment:
In order to better understand the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solving
The present invention is released, any restriction will not be constituted to the present invention.
Embodiment 1
(1) 1.mol manganese nitrate, 4.3mol aluminum nitrate are dissolved in 1L deionized water and metal ion solution is made, and will be golden
Belong to solion to be placed in reaction kettle, it is 5% that mass concentration, which is added, in the ratio with urea and nitric acid al mole ratio for 0.24:1.5
Urea liquid, after being stirred, sealing is reacted 7h at 120 DEG C, is cooled to room temperature after reaction, filters, solid is cleaned
After be dried in vacuo, be made manganese/aluminium hydrotalcite-like materials；It with mass ratio is 3.25:1 by hydrotalcite-like materials obtained and silicon carbide
Ratio mixed grinding, be made foaming agent；
(2) corn stover shearing crushed, grind obtained plant powder；20 parts of plant powders, 1 part of zeolite powder, 3 parts are gathered
Vinyl alcohol, 5 parts of deionized waters are uniformly mixed, and spherical particle is made；By 1 part of montmorillonite, 0.5 part of aluminium nitride fibres, 0.1 part of urea
Spherical particle surface is wrapped in 5 parts of deionized water mixing, green body is made, green body is placed in Muffle furnace pre- first at 200 DEG C
Sintering processes 50min, then constant temperature handles 1h at 600 DEG C, and finally constant temperature handles 30min at 1000 DEG C, cools to the furnace
Porous ceramics is made in room temperature；10g porous ceramics is placed in the cerous nitrate aqueous solution that 0.1g mass concentration is 13%, is added
0.3g urea, which is stirred to urea, to be dissolved, and reaction solution is made, places reaction liquid into reaction kettle and reacts 5h at 120 DEG C, cool down later
Modified porous haydite is made to room temperature；
(3) 80 parts of post-consumer glass powder, 2 parts of modified porous haydites, 1 part of fluxing agent, 1 part of foaming agent, 1 part of rush infusion are mixed
It is fitted into compression moulding in mold after being ground up, sieved processing, green body is placed in Muffle furnace, first with the heating rate of 20 DEG C/min
It is warming up to constant temperature at 200 DEG C and handles 30min, 500 DEG C of constant temperature processing 30min are then warming up to the heating rate of 10 DEG C/min,
950 DEG C of constant temperature processing 10-50min are warming up to the heating rate of 5 DEG C/min, are then cooled to the rate of temperature fall of 20 DEG C/min
500 DEG C, 200 DEG C finally are cooled to the rate of temperature fall of 1 DEG C/min, then cools to room temperature with the furnace, foam glass is made.
Embodiment 2
(1) 3.5mol manganese nitrate, 5.5mol aluminum nitrate are dissolved in 1L deionized water and metal ion solution is made, and will be golden
Belong to solion to be placed in reaction kettle, it is 5% that mass concentration, which is added, in the ratio with urea and nitric acid al mole ratio for 0.24:2.5
Urea liquid, after being stirred, sealing is reacted 12h at 120 DEG C, is cooled to room temperature after reaction, filters, and solid is clear
It is dried in vacuo after washing, manganese/aluminium hydrotalcite-like materials is made；It is with mass ratio by hydrotalcite-like materials obtained and silicon carbide
Foaming agent is made in the ratio mixed grinding of 5.13:1；
(2) corn stover shearing crushed, grind obtained plant powder；45 parts of plant powders, 5 parts of zeolite powders, 7 parts are gathered
Vinyl alcohol, 5 parts of deionized waters are uniformly mixed, and spherical particle is made；By 3 parts of montmorillonites, 2.5 parts of aluminium nitride fibres, 0.4 part of urea
Spherical particle surface is wrapped in 5 parts of deionized water mixing, green body is made, green body is placed in Muffle furnace pre- first at 200 DEG C
Sintering processes 50min, then constant temperature handles 1h at 600 DEG C, and finally constant temperature handles 30min at 1000 DEG C, cools to the furnace
Porous ceramics is made in room temperature；10g porous ceramics is placed in the cerous nitrate aqueous solution that 0.52g mass concentration is 13%, is added
0.3g urea, which is stirred to urea, to be dissolved, and reaction solution is made, places reaction liquid into reaction kettle and reacts 5h at 120 DEG C, cool down later
Modified porous haydite is made to room temperature；
(3) by 100 parts of post-consumer glass powder, 6 parts of modified porous haydites, 1.5 parts of fluxing agents, 5 parts of foaming agents, 3 parts of rush infusions
It is fitted into compression moulding in mold after mixed grinding sieving processing, green body is placed in Muffle furnace, first with the heating of 20 DEG C/min
Rate is warming up to constant temperature at 200 DEG C and handles 30min, is then warming up to 500 DEG C of constant temperature processing with the heating rate of 10 DEG C/min
30min is warming up to 950 DEG C of constant temperature processing 10-50min with the heating rate of 5 DEG C/min, then with the rate of temperature fall of 20 DEG C/min
500 DEG C are cooled to, finally 200 DEG C is cooled to the rate of temperature fall of 1 DEG C/min, then cools to room temperature with the furnace, foam glass is made
Glass.
Embodiment 3
(1) 1.7mol manganese nitrate, 4.5mol aluminum nitrate are dissolved in 1L deionized water and metal ion solution is made, and will be golden
Belong to solion to be placed in reaction kettle, it is 5% that mass concentration, which is added, in the ratio with urea and nitric acid al mole ratio for 0.24:1.7
Urea liquid, after being stirred, sealing is reacted 8h at 120 DEG C, is cooled to room temperature after reaction, filters, solid is cleaned
After be dried in vacuo, be made manganese/aluminium hydrotalcite-like materials；It with mass ratio is 3.55:1 by hydrotalcite-like materials obtained and silicon carbide
Ratio mixed grinding, be made foaming agent；
(2) corn stover shearing crushed, grind obtained plant powder；25 parts of plant powders, 2 parts of zeolite powders, 4 parts are gathered
Vinyl alcohol, 5 parts of deionized waters are uniformly mixed, and spherical particle is made；By 1.5 parts of montmorillonites, 0.7 part of aluminium nitride fibres, 0.15 part
Urea and 5 parts of deionized water mixing are wrapped in spherical particle surface and green body are made, and green body is placed in Muffle furnace first at 200 DEG C
Lower pre-sintering handles 50min, and then constant temperature handles 1h at 600 DEG C, and finally constant temperature handles 30min at 1000 DEG C, cold with furnace
But to room temperature, porous ceramics is made；10g porous ceramics is placed in the cerous nitrate aqueous solution that 0.15g mass concentration is 13%, is added
Enter 0.3g urea to stir to urea dissolution, reaction solution is made, places reaction liquid into and reacts 5h, Zhi Houleng in reaction kettle at 120 DEG C
But modified porous haydite is made to room temperature；
(3) by 85 parts of post-consumer glass powder, 3 parts of modified porous haydites, 1.1 parts of fluxing agents, 1.5 parts of foaming agents, 1.5 parts of rush bubbles
It is fitted into compression moulding in mold after agent mixed grinding sieving processing, green body is placed in Muffle furnace, first with the liter of 20 DEG C/min
Warm rate is warming up to constant temperature at 200 DEG C and handles 30min, is then warming up to 500 DEG C of constant temperature processing with the heating rate of 10 DEG C/min
30min is warming up to 950 DEG C of constant temperature processing 10-50min with the heating rate of 5 DEG C/min, then with the rate of temperature fall of 20 DEG C/min
500 DEG C are cooled to, finally 200 DEG C is cooled to the rate of temperature fall of 1 DEG C/min, then cools to room temperature with the furnace, foam glass is made
Glass.
Embodiment 4
(1) 2mol manganese nitrate, 4.8mol aluminum nitrate are dissolved in 1L deionized water and metal ion solution is made, and by metal
Solion is placed in reaction kettle, and it is 5% urine that mass concentration, which is added, in the ratio with urea and nitric acid al mole ratio for 0.24:1.9
Plain solution, after being stirred, sealing is reacted 9h at 120 DEG C, is cooled to room temperature after reaction, filters, after solid is cleaned
Manganese/aluminium hydrotalcite-like materials are made in vacuum drying；It with mass ratio is the ratio of 4:1 by hydrotalcite-like materials obtained and silicon carbide
Example mixed grinding, is made foaming agent；
(2) corn stover shearing crushed, grind obtained plant powder；30 parts of plant powders, 3 parts of zeolite powders, 5 parts are gathered
Vinyl alcohol, 5 parts of deionized waters are uniformly mixed, and spherical particle is made；By 2 parts of montmorillonites, 1 part of aluminium nitride fibres, 0.2 part of urea and
5 parts of deionized water mixing are wrapped in spherical particle surface and green body are made, and green body is placed in Muffle furnace the pre-burning at 200 DEG C first
Knot processing 50min, then constant temperature handles 1h at 600 DEG C, and finally constant temperature handles 30min at 1000 DEG C, cools to room with the furnace
Porous ceramics is made in temperature；10g porous ceramics is placed in the cerous nitrate aqueous solution that 0.25g mass concentration is 13%, 0.3g is added
Urea, which is stirred to urea, to be dissolved, and reaction solution is made, places reaction liquid into reaction kettle and reacts 5h at 120 DEG C, be cooled to room later
Modified porous haydite is made in temperature；
(3) 90 parts of post-consumer glass powder, 4 parts of modified porous haydites, 1.2 parts of fluxing agents, 3 parts of foaming agents, 2 parts of rush infusions are mixed
Conjunction is fitted into compression moulding in mold after being ground up, sieved processing, and green body is placed in Muffle furnace, first with the heating speed of 20 DEG C/min
Rate is warming up to constant temperature at 200 DEG C and handles 30min, is then warming up to 500 DEG C of constant temperature processing with the heating rate of 10 DEG C/min
30min is warming up to 950 DEG C of constant temperature processing 10-50min with the heating rate of 5 DEG C/min, then with the rate of temperature fall of 20 DEG C/min
500 DEG C are cooled to, finally 200 DEG C is cooled to the rate of temperature fall of 1 DEG C/min, then cools to room temperature with the furnace, foam glass is made
Glass.
Embodiment 5
(1) 2.5mol manganese nitrate, 5mol aluminum nitrate are dissolved in 1L deionized water and metal ion solution is made, and by metal
Solion is placed in reaction kettle, and it is 5% urea that mass concentration, which is added, in the ratio with urea and nitric acid al mole ratio for 0.24:2
Solution, after being stirred, sealing is reacted 10h at 120 DEG C, is cooled to room temperature after reaction, filters, after solid is cleaned
Manganese/aluminium hydrotalcite-like materials are made in vacuum drying；It with mass ratio is 4.35:1's by hydrotalcite-like materials obtained and silicon carbide
Foaming agent is made in ratio mixed grinding；
(2) corn stover shearing crushed, grind obtained plant powder；35 parts of plant powders, 4 parts of zeolite powders, 6 parts are gathered
Vinyl alcohol, 5 parts of deionized waters are uniformly mixed, and spherical particle is made；By 2 parts of montmorillonites, 2 parts of aluminium nitride fibres, 0.3 part of urea and
5 parts of deionized water mixing are wrapped in spherical particle surface and green body are made, and green body is placed in Muffle furnace the pre-burning at 200 DEG C first
Knot processing 50min, then constant temperature handles 1h at 600 DEG C, and finally constant temperature handles 30min at 1000 DEG C, cools to room with the furnace
Porous ceramics is made in temperature；10g porous ceramics is placed in the cerous nitrate aqueous solution that 0.35g mass concentration is 13%, 0.3g is added
Urea, which is stirred to urea, to be dissolved, and reaction solution is made, places reaction liquid into reaction kettle and reacts 5h at 120 DEG C, be cooled to room later
Modified porous haydite is made in temperature；
(3) 93 parts of post-consumer glass powder, 5 parts of modified porous haydites, 1.3 parts of fluxing agents, 4 parts of foaming agents, 3 parts of rush infusions are mixed
Conjunction is fitted into compression moulding in mold after being ground up, sieved processing, and green body is placed in Muffle furnace, first with the heating speed of 20 DEG C/min
Rate is warming up to constant temperature at 200 DEG C and handles 30min, is then warming up to 500 DEG C of constant temperature processing with the heating rate of 10 DEG C/min
30min is warming up to 950 DEG C of constant temperature processing 10-50min with the heating rate of 5 DEG C/min, then with the rate of temperature fall of 20 DEG C/min
500 DEG C are cooled to, finally 200 DEG C is cooled to the rate of temperature fall of 1 DEG C/min, then cools to room temperature with the furnace, foam glass is made
Glass.
Embodiment 6
(1) 3.3mol manganese nitrate, 5.0mol aluminum nitrate are dissolved in 1L deionized water and metal ion solution is made, and will be golden
Belong to solion to be placed in reaction kettle, it is 5% that mass concentration, which is added, in the ratio with urea and nitric acid al mole ratio for 0.24:2.3
Urea liquid, after being stirred, sealing is reacted 11h at 120 DEG C, is cooled to room temperature after reaction, filters, and solid is clear
It is dried in vacuo after washing, manganese/aluminium hydrotalcite-like materials is made；It is with mass ratio by hydrotalcite-like materials obtained and silicon carbide
Foaming agent is made in the ratio mixed grinding of 5.02:1；
(2) corn stover shearing crushed, grind obtained plant powder；By 43 parts of plant powders, 4.5 parts of zeolite powders, 6 parts
Polyvinyl alcohol, 5 parts of deionized waters are uniformly mixed, and spherical particle is made；By 2.5 parts of montmorillonites, 2 parts of aluminium nitride fibres, 0.35 part
Urea and 5 parts of deionized water mixing are wrapped in spherical particle surface and green body are made, and green body is placed in Muffle furnace first at 200 DEG C
Lower pre-sintering handles 50min, and then constant temperature handles 1h at 600 DEG C, and finally constant temperature handles 30min at 1000 DEG C, cold with furnace
But to room temperature, porous ceramics is made；10g porous ceramics is placed in the cerous nitrate aqueous solution that 0.45g mass concentration is 13%, is added
Enter 0.3g urea to stir to urea dissolution, reaction solution is made, places reaction liquid into and reacts 5h, Zhi Houleng in reaction kettle at 120 DEG C
But modified porous haydite is made to room temperature；
(3) by 96 parts of post-consumer glass powder, 5 parts of modified porous haydites, 1.4 parts of fluxing agents, 4.5 parts of foaming agents, 2.5 parts of rush bubbles
It is fitted into compression moulding in mold after agent mixed grinding sieving processing, green body is placed in Muffle furnace, first with the liter of 20 DEG C/min
Warm rate is warming up to constant temperature at 200 DEG C and handles 30min, is then warming up to 500 DEG C of constant temperature processing with the heating rate of 10 DEG C/min
30min is warming up to 950 DEG C of constant temperature processing 10-50min with the heating rate of 5 DEG C/min, then with the rate of temperature fall of 20 DEG C/min
500 DEG C are cooled to, finally 200 DEG C is cooled to the rate of temperature fall of 1 DEG C/min, then cools to room temperature with the furnace, foam glass is made
Glass.
Comparative example
Porous ceramics is not added in foam glass, other preparation conditions and embodiment 6 are identical.
Performance test
1, compression strength
Strength degree when compression strength refers to the sample effect of being under pressure and is destroyed, i.e., on sample unit compression area
The maximum load of receiving.
SC=P/S
SC: the compression strength of sample, MPa；P: the pressure value that sample is received when destroying, N；S: the compression area of sample, m2。
Test method: it is surveyed using the electronic universal tester of the XW type of the prosperous detecting instrument Co., Ltd of Beijing Jin Sheng
Examination, the size of batten are 20mm × 15mm × 15mm, and test condition is uniaxial compression load, and cross pressure head travel speed is 1mm/
min.All results of test all represent the average value of 5 phases test result in specie.10.5MPa.
2, bulk density
Bulk density is also known as apparent density, volume weight.Its measurement method is the bulk sample of selection rule shape, measurement
Its length and width and height simultaneously calculate its volume V, then weigh the mass M being cooled to room temperature after its drying.
ρV=M/V
ρV: bulk density, g/cm2；M: quality after dry, g；V: block volume, cm3。0.35
3, chemical stability (foam glass structure)
Test method: the middle corrosion resistance of test sample hydrochloric acid solution weighs dry sample and is contained in small beaker in right amount
In, it is denoted as m0, slowly import in hydrochloric acid solution until not having sample completely, sealing beaker mouth with preservative film prevents solution concentration from becoming
Change；30d is impregnated, sample is taken out and is dried, its quality is claimed to be denoted as ma。
Wn=(ms-m0)/m0× 100%
Wn: chemical stability, %；m0: quality before sample etches, g；ms: quality after sample etches, g.
4, sound absorbing performance
Measurement-standing-wave ratio method according to standard GB/T/T18696.1-2004 Sound Absorption Coefficient in Impedance Tubes and acoustic impedance is surveyed
Examination.
5, heat-proof quality
Test method: in test process, first the beaker for filling a certain amount of distilled water is placed in magnetic heating stirrer, is beaten
It opens magnetic heating stirrer and carries out heating 30min, and record the temperature change of distilled water in beaker, next put in beaker bottom
One piece of ordinary plate glass is set, one glass of distilled water is reapposed, reheats 30min, measurement is burnt the temperature of water in the cup, finally removed
Beaker and plate glass place one piece of onesize, above testing procedure of fiber reinforced foam glass repetition of same thickness, and
Record experimental result.
Test result is as shown in table 1, table 2.
Table 1
| Compression strength, MPa | Bulk density, g/cm2 | Chemical stability, % | Acoustic absorptivity | |
| Embodiment 1 | 11.2 | 0.35 | -0.012 | 0.55 |
| Embodiment 2 | 11.5 | 0.48 | -0.015 | 0.63 |
| Embodiment 3 | 10.9 | 0.37 | -0.023 | 0.58 |
| Embodiment 4 | 10.5 | 0.40 | -0.017 | 0.55 |
| Embodiment 5 | 11.3 | 0.42 | -0.012 | 0.55 |
| Embodiment 6 | 11.5 | 0.45 | -0.011 | 0.60 |
| Comparative example | 5.2 | 0.63 | -0.98 | 0.19 |
Table 2
From the point of view of above-mentioned test result, foam glass produced by the present invention not only excellent in mechanical performance, and the thermal insulation that absorbs sound
It can be excellent.
Although specific embodiments of the present invention are described, many other forms of the invention and change
Change will be apparent to those skilled in the art.It should be understood that appended claims and the present invention usually cover the present invention very
All these apparent forms and change in real spirit and scope.
Claims (10)
1. a kind of method for preparing foam glass using post-consumer glass and porous ceramic grain, which comprises the following steps:
(1) manganese nitrate, aluminum nitrate are dissolved in deionized water and metal ion solution is made, and metal ion solution is placed in reaction
In kettle, urea liquid is added, after being stirred, sealing is reacted 7-12h at 120 DEG C, is cooled to room temperature after reaction, mistake
Filter, is dried in vacuo after solid is cleaned, and manganese/aluminium hydrotalcite-like materials are made；Hydrotalcite-like materials obtained are mixed with silicon carbide
Grinding is closed, foaming agent is made；
(2) corn stover shearing crushed, grind obtained plant powder；By plant powder, zeolite powder, polyvinyl alcohol, deionization
Water is uniformly mixed, and spherical particle is made；Montmorillonite, aluminium nitride fibres, urea and deionized water are mixed and are wrapped in spherical particle
Green body is made in surface, and green body is placed in Muffle furnace first at 200 DEG C and is pre-sintered processing 50min, then the constant temperature at 600 DEG C
1h is handled, finally constant temperature handles 30min at 1000 DEG C, cools to room temperature with the furnace, and porous ceramics is made；Porous ceramics is placed in
In cerous nitrate aqueous solution, urea is added and stirs to urea and dissolves, reaction solution is made, places reaction liquid into reaction kettle at 120 DEG C
5h is reacted, is cooled to room temperature modified porous haydite is made later；
(3) mould will be packed into after post-consumer glass powder, modified porous haydite, fluxing agent, foaming agent, rush infusion mixed grinding sieving processing
Compression moulding in tool, green body is placed in Muffle furnace, is warming up to constant temperature at 200 DEG C first with the heating rate of 20 DEG C/min and is handled
Then 30min is warming up to 500 DEG C of constant temperature processing 30min with the heating rate of 10 DEG C/min, with the heating rate liter of 5 DEG C/min
Temperature to 950 DEG C of constant temperature handle 10-50min, then 500 DEG C are cooled to the rate of temperature fall of 20 DEG C/min, finally with 1 DEG C/min's
Rate of temperature fall is cooled to 200 DEG C, then cools to room temperature with the furnace, and foam glass is made.
2. a kind of method for preparing foam glass using post-consumer glass and porous ceramic grain according to claim 1, feature
Be: in step (1), in metal ion solution, manganese nitrate, aluminum nitrate concentration be respectively 1.5-3.5mol/L, 4.3-
5.5mol/L。
3. a kind of method for preparing foam glass using post-consumer glass and porous ceramic grain according to claim 1, feature
Be: in step (1), the mass concentration of urea liquid is 5%, and the molar ratio of urea and aluminum nitrate is 0.24:(1.5-2.5).
4. a kind of method for preparing foam glass using post-consumer glass and porous ceramic grain according to claim 1, feature
Be: in step (1), the hydrotalcite-like materials, silicon carbide mass ratio be (3.25-5.13): 1.
5. a kind of method for preparing foam glass using post-consumer glass and porous ceramic grain according to claim 1, feature
Be: in step (2), in parts by weight, plant powder, zeolite powder, polyvinyl alcohol, montmorillonite, aluminium nitride fibres, urea tool
Body dosage is plant powder 20-45 parts, 1-5 parts of zeolite powder, 3-7 parts of polyvinyl alcohol, 1-3 parts of montmorillonite, aluminium nitride fibres 0.5-
2.5 parts, 0.1-0.4 parts of urea.
6. a kind of method for preparing foam glass using post-consumer glass and porous ceramic grain according to claim 1, feature
Be: in step (2), the porous ceramics, cerous nitrate, urea mass ratio be 10:(0.013-0.067): 0.3.
7. a kind of method for preparing foam glass using post-consumer glass and porous ceramic grain according to claim 1, feature
Be: in step (2), the mass concentration of the cerous nitrate aqueous solution is 13%.
8. a kind of method for preparing foam glass using post-consumer glass and porous ceramic grain according to claim 1, feature
Be: in step (3), the fluxing agent is borax.
9. a kind of method for preparing foam glass using post-consumer glass and porous ceramic grain according to claim 1, feature
Be: in step (3), the rush infusion is potassium nitrate.
10. a kind of method for preparing foam glass using post-consumer glass and porous ceramic grain according to claim 1, feature
Be: in step (3), in parts by weight, the dosage of each component is respectively 80-100 parts of post-consumer glass powder, modified porous ceramics 2-
6 parts, 1-1.5 parts of fluxing agent, 1-5 parts of foaming agent, infusion 1-3 parts of rush.
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