CN101880128A - Method for preparing lightweight high-strength foam glass - Google Patents
Method for preparing lightweight high-strength foam glass Download PDFInfo
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- CN101880128A CN101880128A CN 201010216531 CN201010216531A CN101880128A CN 101880128 A CN101880128 A CN 101880128A CN 201010216531 CN201010216531 CN 201010216531 CN 201010216531 A CN201010216531 A CN 201010216531A CN 101880128 A CN101880128 A CN 101880128A
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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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Abstract
The invention relates to a method for preparing lightweight high-strength foam glass, which comprises the following steps of: firstly, cleaning cullet, drying the cleaned cullet, and performing ball milling to form powder; secondly, mixing the cullet powder, SiC, borax, NaNO3 and high-strength high-temperature resistance fibers to obtain a batch mixture; thirdly, adding the batch mixture into a heat resistant steel die, and performing compaction and die filling; and finally, transferring the die into a foaming furnace, and sintering in phases of preheating, foaming, foam stabilization, rapid cooling and annealing to obtain the foam glass. The method is favorable for utilizing waste and protecting environment, and the prepared foam glass has the advantages of low density, high strength, low conductivity factors, simple preparation process and simple and convenient construction and operation. Therefore, the method can protect environment effectively and turn waste into wealth, and the high-strength foam glass block can absorb explosion energy, and reduce the physical and property damage caused by collapse of wall construction materials due to terrorist attacks or natural disasters.
Description
Technical field
The present invention relates to a kind of preparation method of multicellular glass, be specifically related to a kind of method for preparing lightweight high-strength foam glass by fiber reinforcement.Be used for architectural environments such as building wall field or military project be anti-riot, shockproof.
Background technology
In the many decades, a lot of natural disasteies and the artificial attack of terrorism taking place all over the world, causes the injures and deaths of ten hundreds of life, millions of property damagees in the past.For example, the earthquake that on July 28th, 1976 occurred in Tangshan City, China Hebei province causes people's death more than 240,000, and 160,000 people are injured.1993, the terrorist ignited the car bomb that is positioned at New York World Trade Center garage, caused great life and property damage.1998, the embassy of the U.S. in Nairobi and Dar es Salaam also was subjected to terrorist's car bombing, causes great life and property damage respectively.2002, the disaster event that the Pentagon in the World Trade Center of New York and Virginia takes place.The 8.0 grades of earthquakes of Richter scale that occurred in China Sichuan Province on May 12nd, 2008 cause wrecked 69225 people, injured 374640 people, and missing 17939 people, direct economic loss reaches 8,451 hundred million yuans.Everything is further warned people and presses for exploitation and make high-strength earthquake proof construction material, and the more important thing is that its density is little, and light weight could really play the huge effect of protection people's life safety and the purpose that reduces the national wealth loss.
Multicellular glass is to utilize discarded sheet glass, container glass is a main raw material, add whipping agent, properties-correcting agent, fusing assistant etc., be uniformly mixed to form admixtion through ball milling, be placed on the porous glass material that a kind of inside that forms through technological processs such as foaming, annealing in the specific grinding tool is full of countless even bubbles then.The inherent of glass own is permanent except having for multicellular glass, security, anti-chemical corrodibility and be not subjected to the characteristics of worm ant mouse infringement, have also that unit weight is light, thermal conductivity is little, wet thoroughly, water-intake rate is little, do not burn, do not go mouldy, stable performance, be cold insulation material be again lagging material, can adapt to deep cooling to characteristics such as comparatively high temps scopes.Its important value not only is to use all the year round and undergoes no deterioration simultaneously, and itself plays fire prevention, antihunt action again.In recent years, along with requirement and the demand of country to the energy-conserving and environment-protective material property, multicellular glass is further developed, not only can replace materials such as traditional reinforced concrete at building field, be used for the Highrise buildings materials for wall, the pipeline material that also can be used as under the heat-resisting environment of chemical industry uses.But also can be used as fire-retardant material.But multicellular glass intensity is lower, and the multicellular glass folding strength of different size is 0.1～1MPa.
American's San Pedro M cloth Royal Saltworks of Arc et Senans De Masaiduo discloses a kind of with flying dust (calcinated type F) in Chinese patent CN1642730A, quartz sand, carbonate, alkaline metal silicate, boric acid, sugar, water etc. are raw material, earlier according to the prescription batching, after the admixtion for preparing adopts wet ball grinding, with the slurry drying that generates, under 950 ℃, the exsiccant slurry is calcined 40min then, allow starting material fully react, resolve into meticulous, homodisperse carbon, will calcine at last and the admixtion of grind into powder is put into mould and is heated to 850 ℃ of foaming.Prepared sample density (approximates 0.4～1.6g/cm for 25～100 pounds/cubic feet
3).Although the multicellular glass intensity height that this method is prepared adopts calcining process twice to admixtion, complicated process of preparation, the firing temperature height, and resulting sample density is big, and (maximum can reach 1.6g/cm
3, suitable with the density of vitrified brick), can make multicellular glass not reach the light-weight effect in the application of building field.CN101014461A discloses the firm high-density foam glass in a kind of small-bore, and used raw material is identical with CN1642730A with preparation technology, and the aperture of prepared sample is 0.3～1mm, and density (approximates 1.6g/cm less than 100 pounds/cubic feet
3).The multicellular glass aperture of this method preparation is less, and folding strength is low.CN200946127Y discloses a kind of multicellular glass that accompanies wire cloth, it is low to have solved the multicellular glass physical strength, but still can not solve the problem of light weight, and can not produce the large format goods, service routine is numerous and diverse, construction quality, effect are difficult for the problem that guarantees.But this kind accompanies relatively difficulty of multicellular glass cutting processing wiry, constructing operation more complicated.
Except improving the physical strength of multicellular glass by the method that improves multicellular glass density, can also be by in the multicellular glass admixtion, adding the method for a small amount of additive, make its foaming back in multicellular glass, separate out the crystalline method of some amount, also can improve the physical strength of multicellular glass to a certain extent.Nanjing University is a main raw material with cullet and flyash, is that whipping agent has prepared crystallite foam glass with lime carbonate, glass powder, flyash and the nonmetalliferous ore that grinds is added the laggard row of entry mix; Containing compression moulding under the condition of moisture, then oven dry; Put into kiln and fire, the blank excision forming after will firing then.Its shortcoming is except that glass powder and flyash, has also added nonmetalliferous ore, and manufacturing cost is higher.Used nonmetalliferous ore has alkali feldspar, silica sand, soda ash and calcite, and has adopted compression moulding, complex manufacturing technology.It is main raw material with waste and old cathode x ray tube glass that CN1807314A discloses a kind of, with SiC is whipping agent, issues the method that infusion is equipped with crystallite foam glass at 840～900 ℃, and crystal has Pb in the prepared crystallite foam glass of this method, PbO etc., and intensity is higher.But the prepared multicellular glass density of this method also is higher than 1.0g/cm
3, the blowing temperature height, power consumption is high, is difficult to be able to wide application.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, provide a kind of density low, blowing temperature is low, the preparation method of the simple lightweight high-strength foam glass of preparation technology, and the density of the multicellular glass that obtains according to preparation method of the present invention is 0.2～0.6g/cm
3, aperture 0.3～5.0mm, and even air hole distribution, folding strength can reach 3.0～10.0MPa.
For achieving the above object, the technical solution used in the present invention is:
1) at first, glass cullet are cleaned up, oven dry back ball milling becomes the above powder of 270 orders;
2) secondly, press massfraction with 77～93% glass cullet powder, 1～3% SiC, 2～4% borax, 2～4% NaNO
3, 2～12.0% high-strength high-temperature fibre joins that ball milling 10～60min gets admixtion in the ball grinder;
3) then, above-mentioned admixtion is joined in the high temperature steel mould, compacting dress mould moves into mould in the foaming furnace more at last and burns till according to following technological process;
Pre-heating stage, after room temperature is warming up to 400 ℃ with the heat-up rate of 10～20 ℃/min, insulation 10～30min;
Foaming stages, heat-up rate are that 5～10 ℃/min is warmed up to 780～850 ℃;
In the steady bubble stage, under 780～850 ℃ of constant temperature, be incubated 10～60min;
Quick cooling stages, speed of cooling is 20～25 ℃/min, is cooled to 500～550 ℃, constant temperature time 10～30min;
Annealing stage, cooling rate is 1～2 ℃/min, is annealed to and gets multicellular glass below 50 ℃.
The used glass cullet of the present invention comprise various waste and old sheet glass, container glass, and electronic glass, and the color of glass do not had special requirement, the bubble diameter of the thin more prepared multicellular glass of the granularity of glass cullet powder distributes even more; SiC is as whipping agent; Borax is as fusing assistant, NaNO
3As suds-stabilizing agent, high-strength high-temperature fibre is as toughener, and wherein the requirement to fiber is, and is indeformable under blowing temperature; Not with glass powder and additive reaction; Long-term existence at normal temperatures, chemical stability is good; Good mechanical performance; The diameter of fiber is 0.01～0.05mm, preferred 0.01～0.03mm, and length is 1～100mm; Preferred 3～50mm; High-strength high-temperature fibre commonly used comprises mullite fiber (being cut into desired length in the use as required), high silica fiber, SiC, Si
3N
4Fiber adds the refractoriness height in the multicellular glass, the fiber that intensity is high helps improving the mechanical property of multicellular glass.Therefore, the multicellular glass physical strength height that the present invention is prepared, use range is extensive than regular foam glass, long service life.This multicellular glass can combine with cement, steel or other high-strength building thing materials, be used in the inside and outside facade of critical surfaces of the buildings of the high-risk danger zone of the attack of terrorism, and the advantage with rigid structure, when facing impact, multicellular glass can absorb the major portion of explosion energy.Even as construction material, break when caving in, because its light weight can not damage people's life yet.
The present invention not only helps utilization of waste material, the protection environment, and also the multicellular glass density that makes is little, the intensity height, and thermal conductivity is low, preparation technology is simple, constructing operation is easy.Therefore, the present invention not only can protect environment effectively, turn waste into wealth, and this high strength foam glass brick can absorb explosion energy, reduces lest being afraid of to attack or natural disaster causes wall body building material to cave in to the loss of the person and property.It is withstand voltage, heat-resisting, corrosion-resistant to be widely used in materials for wall or seabed etc., in the architectural environments such as anti-folding.Have tangible economic benefit, environmental benefit, have broad prospect of application.
Embodiment
Embodiment 1:1) at first, waste and old sheet glass is cleaned up, oven dry back ball milling becomes the above powder of 270 orders;
2) secondly, press massfraction with 90% glass cullet powder, 1.5% SiC, 3.5% borax, 3% NaNO
3, 2% diameter is 0.01～0.05mm, length is that the mullite fiber of 1～100mm joins that ball milling 20min gets admixtion in the ball grinder;
3) then, above-mentioned admixtion is joined in the high temperature steel mould, compacting dress mould moves into mould in the foaming furnace more at last and burns till according to following technological process;
Pre-heating stage, after room temperature is warming up to 400 ℃ with the heat-up rate of 15 ℃/min, insulation 20min;
Foaming stages, heat-up rate are that 5 ℃/min is warmed up to 820 ℃;
In the steady bubble stage, under 820 ℃ of constant temperature, be incubated 30min;
Quick cooling stages, speed of cooling is 20 ℃/min, is cooled to 500 ℃, constant temperature time 30min;
Annealing stage, cooling rate is 1 ℃/min, is annealed to and gets multicellular glass below 50 ℃.
Formed multicellular glass even structure, average bubble diameter 1.7mm, density is 0.32g/cm
3, folding strength reaches 3.5MPa.
Embodiment 2:1) at first, container glass is cleaned up, oven dry back ball milling becomes the above powder of 270 orders;
2) secondly, press massfraction with 87% glass cullet powder, 1.5% SiC, 3.5% borax, 3% NaNO
3, 5% diameter is 0.01～0.05mm, length is that the high silica fiber of 1～100mm joins that ball milling 60min gets admixtion in the ball grinder;
3) then, above-mentioned admixtion is joined in the high temperature steel mould, compacting dress mould moves into mould in the foaming furnace more at last and burns till according to following technological process;
Pre-heating stage, after room temperature is warming up to 400 ℃ with the heat-up rate of 10 ℃/min, insulation 30min;
Foaming stages, heat-up rate are that 8 ℃/min is warmed up to 780 ℃;
In the steady bubble stage, under 780 ℃ of constant temperature, be incubated 60min;
Quick cooling stages, speed of cooling is 25 ℃/min, is cooled to 520 ℃, constant temperature time 20min;
Annealing stage, cooling rate is 2 ℃/min, is annealed to and gets multicellular glass below 50 ℃.
Formed multicellular glass even structure, average bubble diameter 1.8mm, density is 0.33g/cm
3, folding strength reaches 3.9MPa.
Embodiment 3:1) at first, electronic glass is cleaned up, oven dry back ball milling becomes the above powder of 270 orders;
2) secondly, press massfraction with 93% glass cullet powder, 1% SiC, the NaNO of 2% borax 2%
3, 2% diameter is 0.01～0.05mm, length is that the SiC fiber of 1～100mm joins that ball milling 10min gets admixtion in the ball grinder;
3) then, above-mentioned admixtion is joined in the high temperature steel mould, compacting dress mould moves into mould in the foaming furnace more at last and burns till according to following technological process;
Pre-heating stage, after room temperature is warming up to 400 ℃ with the heat-up rate of 20 ℃/min, insulation 10min;
Foaming stages, heat-up rate are that 10 ℃/min is warmed up to 850 ℃;
In the steady bubble stage, under 850 ℃ of constant temperature, be incubated 10min;
Quick cooling stages, speed of cooling is 23 ℃/min, is cooled to 540 ℃, constant temperature time 15min;
Annealing stage, cooling rate is 2 ℃/min, is annealed to and gets multicellular glass below 50 ℃.
Formed multicellular glass even structure, average bubble diameter 1.5mm, density is 0.41gcm
-3, folding strength reaches 7.9MPa.
Embodiment 4:1) at first, waste and old sheet glass is cleaned up, oven dry back ball milling becomes the above powder of 270 orders;
2) secondly, press massfraction with 77% glass cullet powder, 3% SiC, 4% borax, 4% NaNO
3, 12% diameter is 0.01～0.05mm, length is the Si of 1～100mm
3N
4Fiber joins that ball milling 50min gets admixtion in the ball grinder;
3) then, above-mentioned admixtion is joined in the high temperature steel mould, compacting dress mould moves into mould in the foaming furnace more at last and burns till according to following technological process;
Pre-heating stage, after room temperature is warming up to 400 ℃ with the heat-up rate of 12 ℃/min, insulation 28min;
Foaming stages, heat-up rate are that 7 ℃/min is warmed up to 800 ℃;
In the steady bubble stage, under 800 ℃ of constant temperature, be incubated 40min;
Quick cooling stages, speed of cooling is 21 ℃/min, is cooled to 510 ℃, constant temperature time 25min;
Annealing stage, cooling rate is 1 ℃/min, is annealed to and gets multicellular glass below 50 ℃.
Formed multicellular glass even structure, average bubble diameter 1.6mm, density is 0.37gcm
-3, folding strength reaches 6.7MPa.
Embodiment 5:1) at first, container glass is cleaned up, oven dry back ball milling becomes the above powder of 270 orders;
2) secondly, press massfraction with 80% glass cullet powder, 2% SiC, 3% borax, 3% NaNO
3, 12% diameter is 0.01～0.05mm, length is that the mullite fiber of 1～100mm joins that ball milling 40min gets admixtion in the ball grinder;
3) then, above-mentioned admixtion is joined in the high temperature steel mould, compacting dress mould moves into mould in the foaming furnace more at last and burns till according to following technological process;
Pre-heating stage, after room temperature is warming up to 400 ℃ with the heat-up rate of 16 ℃/min, insulation 18min;
Foaming stages, heat-up rate are that 9 ℃/min is warmed up to 835 ℃;
In the steady bubble stage, under 835 ℃ of constant temperature, be incubated 20min;
Quick cooling stages, speed of cooling is 24 ℃/min, is cooled to 550 ℃, constant temperature time 10min;
Annealing stage, cooling rate is 1 ℃/min, is annealed to and gets multicellular glass below 50 ℃.
Formed multicellular glass even structure, average bubble diameter 1.7mm, density is 0.35gcm
-3, folding strength reaches 5.5MPa.
Embodiment 6:1) at first, electronic glass is cleaned up, oven dry back ball milling becomes the above powder of 270 orders;
2) secondly, press massfraction with 85% glass cullet powder, 2.5% SiC, 2.5% borax, 2% NaNO
3, 8% diameter is 0.01～0.05mm, length is that the high silica fiber of 1～100mm joins that ball milling 30min gets admixtion in the ball grinder;
3) then, above-mentioned admixtion is joined in the high temperature steel mould, compacting dress mould moves into mould in the foaming furnace more at last and burns till according to following technological process;
Pre-heating stage, after room temperature is warming up to 400 ℃ with the heat-up rate of 18 ℃/min, insulation 15min;
Foaming stages, heat-up rate are that 6 ℃/min is warmed up to 810 ℃;
In the steady bubble stage, under 810 ℃ of constant temperature, be incubated 50min;
Quick cooling stages, speed of cooling is 22 ℃/min, is cooled to 530 ℃, constant temperature time 20min;
Annealing stage, cooling rate is 2 ℃/min, is annealed to and gets multicellular glass below 50 ℃.
Formed multicellular glass even structure, average bubble diameter 1.6mm, density is 0.37gcm
-3, folding strength reaches 6.5MPa.
The present invention is the foam glass product that adopts die production, and admixtion is added in the high temperature steel mould, and die size is l * b * h=560 * 450 * 130 (mm), and layer thickness is 30～60mm.
The present invention not only is conducive to twice laid, protection of the environment, and also the foam glass density that makes is little, the intensity height, and thermal conductivity factor is low, preparation technology is simple, the construction is easy and simple to handle. Therefore; the present invention is protection of the environment effectively not only; turn waste into wealth; and this high-intensity foam glass brick can absorb explosion energy, alleviates greatly the weight of building construction materials for wall, reduces lest being afraid of to attack or natural calamity causes house collapse to the loss of the person and property; it is withstand voltage to be widely used in materials for wall or seabed etc.; heat-resisting, corrosion-resistant, in the architectural environments such as anti-folding. Have obvious economic benefit, environmental benefit, the lightweight characteristics of not enough fired brick 1/3 density make it will have broad prospect of application at building field.
Claims (3)
1. the preparation method of a lightweight high-strength foam glass is characterized in that may further comprise the steps:
1) at first, glass cullet are cleaned up, oven dry back ball milling becomes the above powder of 270 orders;
2) secondly, press massfraction with 77～93% glass cullet powder, 1～3% SiC, 2～4% borax, 2～4% NaNO
3, 2～12.0% high-strength high-temperature fibre joins that ball milling 10～60min gets admixtion in the ball grinder;
3) then, above-mentioned admixtion is joined in the high temperature steel mould, compacting dress mould moves into mould in the foaming furnace more at last and burns till according to following technological process;
Pre-heating stage, after room temperature is warming up to 400 ℃ with the heat-up rate of 10～20 ℃/min, insulation 10～30min;
Foaming stages, heat-up rate are that 5～10 ℃/min is warmed up to 780～850 ℃;
In the steady bubble stage, under 780～850 ℃ of constant temperature, be incubated 10～60min;
Quick cooling stages, speed of cooling is 20～25 ℃/min, is cooled to 500～550 ℃, constant temperature time 10～30min;
Annealing stage, cooling rate is 1～2 ℃/min, is annealed to and gets multicellular glass below 50 ℃.
2. the preparation method of lightweight high-strength foam glass according to claim 1, it is characterized in that: described glass cullet comprise various waste and old sheet glass, container glass or electronic glass.
3. the preparation method of lightweight high-strength foam glass according to claim 1 is characterized in that: it is 0.01～0.05mm that described high-strength high-temperature fibre adopts diameter, and length is mullite fiber, high silica fiber, SiC fiber or the Si of 1～100mm
3N
4Fiber.
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| CN 201010216531 CN101880128A (en) | 2010-07-02 | 2010-07-02 | Method for preparing lightweight high-strength foam glass |
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| CN 201010216531 CN101880128A (en) | 2010-07-02 | 2010-07-02 | Method for preparing lightweight high-strength foam glass |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167517A (en) * | 2010-12-30 | 2011-08-31 | 陕西科技大学 | Preparation method of high-strength porous glass |
| CN102617020A (en) * | 2012-03-02 | 2012-08-01 | 浙江振申绝热科技有限公司 | Process for producing foam glass by using natural gas as fuel and roller kiln used by same |
| CN102838280A (en) * | 2012-09-28 | 2012-12-26 | 山东建筑大学 | Method for preparing foam glass ceramics by utilizing red mud and waste glass |
| CN103866936A (en) * | 2014-03-25 | 2014-06-18 | 张尚宇 | Thermal-insulating and fireproof marble-surface integrated wall brick and making method thereof |
| CN103864279A (en) * | 2014-03-03 | 2014-06-18 | 北京工业大学 | Compaction process used for foam glass batch |
| WO2016041899A1 (en) * | 2014-09-15 | 2016-03-24 | Glassolite Ltd. | Molding of a foamed glass product with an outer protective crust |
| CN106316140A (en) * | 2016-08-05 | 2017-01-11 | 雷春生 | Method for preparing high-strength electric engineering noise elimination material |
| CN107117823A (en) * | 2017-06-30 | 2017-09-01 | 合肥利裕泰玻璃制品有限公司 | A kind of foam glass and preparation method thereof |
| US10005209B2 (en) | 2013-03-15 | 2018-06-26 | Nike, Inc. | Process for foaming thermoplastic elastomers |
| CN109020238A (en) * | 2017-06-09 | 2018-12-18 | 河北卓达建材研究院有限公司 | A kind of preparation method of light white foam glass |
| CN111285592A (en) * | 2020-03-25 | 2020-06-16 | 安徽畅达绝热科技有限公司 | Preparation method of colored foam glass for decoration |
| US11976000B2 (en) | 2020-05-10 | 2024-05-07 | Valunor Ag | Expandable silica particles and methods for making and using the same |
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| CN1807314A (en) * | 2006-01-10 | 2006-07-26 | 陕西科技大学 | Preparation method of crystallite foam glass |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167517A (en) * | 2010-12-30 | 2011-08-31 | 陕西科技大学 | Preparation method of high-strength porous glass |
| CN102617020A (en) * | 2012-03-02 | 2012-08-01 | 浙江振申绝热科技有限公司 | Process for producing foam glass by using natural gas as fuel and roller kiln used by same |
| CN102617020B (en) * | 2012-03-02 | 2014-03-05 | 浙江振申绝热科技有限公司 | Process for producing foam glass by using natural gas as fuel and roller kiln used by same |
| CN102838280A (en) * | 2012-09-28 | 2012-12-26 | 山东建筑大学 | Method for preparing foam glass ceramics by utilizing red mud and waste glass |
| US10421221B2 (en) | 2013-03-15 | 2019-09-24 | Nike, Inc. | Process for foaming thermoplastic elastomers |
| US10836082B2 (en) | 2013-03-15 | 2020-11-17 | Nike, Inc. | Process for foaming thermoplastic elastomers |
| US10005209B2 (en) | 2013-03-15 | 2018-06-26 | Nike, Inc. | Process for foaming thermoplastic elastomers |
| CN103864279A (en) * | 2014-03-03 | 2014-06-18 | 北京工业大学 | Compaction process used for foam glass batch |
| CN103864279B (en) * | 2014-03-03 | 2016-01-20 | 北京工业大学 | A kind of debulking methods for multicellular glass admixtion |
| CN103866936A (en) * | 2014-03-25 | 2014-06-18 | 张尚宇 | Thermal-insulating and fireproof marble-surface integrated wall brick and making method thereof |
| WO2016041899A1 (en) * | 2014-09-15 | 2016-03-24 | Glassolite Ltd. | Molding of a foamed glass product with an outer protective crust |
| EA033664B1 (en) * | 2014-09-15 | 2019-11-14 | Pcfg As | Molding of a foamed glass product with an outer protective crust |
| CN106316140A (en) * | 2016-08-05 | 2017-01-11 | 雷春生 | Method for preparing high-strength electric engineering noise elimination material |
| CN106316140B (en) * | 2016-08-05 | 2019-01-01 | 徐琳 | A kind of preparation method of high intensity electrical engineering deadener |
| CN109020238A (en) * | 2017-06-09 | 2018-12-18 | 河北卓达建材研究院有限公司 | A kind of preparation method of light white foam glass |
| CN107117823A (en) * | 2017-06-30 | 2017-09-01 | 合肥利裕泰玻璃制品有限公司 | A kind of foam glass and preparation method thereof |
| CN111285592A (en) * | 2020-03-25 | 2020-06-16 | 安徽畅达绝热科技有限公司 | Preparation method of colored foam glass for decoration |
| US11976000B2 (en) | 2020-05-10 | 2024-05-07 | Valunor Ag | Expandable silica particles and methods for making and using the same |
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Application publication date: 20101110 |