CN1193615A - Magnesium based composite foamed material and its application - Google Patents
Magnesium based composite foamed material and its application Download PDFInfo
- Publication number
- CN1193615A CN1193615A CN98104803A CN98104803A CN1193615A CN 1193615 A CN1193615 A CN 1193615A CN 98104803 A CN98104803 A CN 98104803A CN 98104803 A CN98104803 A CN 98104803A CN 1193615 A CN1193615 A CN 1193615A
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- CN
- China
- Prior art keywords
- foaming agent
- rosin
- magnesial
- parts
- goods
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Building Environments (AREA)
Abstract
A foamed magnesium composite used as heat and sound insulating refractory, wall material and light-weight building material is prepared from rosin foaming agent, light-burnt magnesium, magnesium chloride, polyacrylamide, powdered coal ash and short glass fibre through preparing foaming slurry, moulding, solidifying, and curing at ordinary temp. It features adjustable volume weight (50-1200 kg/cu.m), light weight, high strength, fire-proofing, water-proofing, heat and sound insulating, no poison and low cost.
Description
The invention belongs to a kind ofly can be used for building, thermal insulation sound absorption fire-retardant material, materials for wall and the light building material of traffic, national defence, industrial or agricultural.
In the year before last, the application number that is proposed by the inventor is " composite magnesial material and uses thereof " patent of invention of 961223510, and Patent Office of the People's Republic of China is open on September 10th, 97.This patent of invention technology has many outstanding advantages.Its unit weight 1200kg/m
3, be half of Steel Concrete and building stones unit weight, slightly gentlier than plastics unit weight.But than timber unit weight 500-900kg/m
3Heavy.Its some product weight also than the weight of woodwork, plastics, Al-alloy products more greatly.This is a unique unsatisfactory place of composite magnesial material.Aspect transportation, installation, use, there are some unfavorable problems.
In order to solve the problem of above-mentioned existence, the inventor has carried out unremitting effort, and the component and the prescription of composite magnesial material carried out many tests, seeks a kind of magnesial composite foam material.This foam material had both had the technical feature and the process characteristic of composite magnesial material, and the advantage of have light firm again, unit weight is adjustable, intensity can become, weather resistance is strong is so that satisfy the requirement of different functions of use.
At present, be representative in the prior art with the steam-pressing aero-concrete, its complex manufacturing is got angry into bubble with cement, lime, flyash and aluminium powder, and temperature, pressure and time control are difficult, and the steaming and cultivating equipment investment is big, excision forming, goods are single, the cost height.Resemble again Patent Office of the People's Republic of China on August 25th, 1993 disclosed application number be 921060521 " a kind of light foamed building material containing magnesium ", be to be main raw material with magnesium oxide, the mixture that adopts potassium aluminium sulfate, sulfuric acid and triethylamine is as properties-correcting agent, the flyash consumption seldom, chemical reaction by whipping agents such as hydrogen peroxide produces gas, forms porous structure material.Its void content is difficult to control, and complicated operation, cost are still high.
The purpose of this invention is to provide a kind of light firm, unit weight is adjustable, it is fire-resistant not fire, adiabatic heat-insulation, sound insulation sound absorption, freeze-thawing resistant strong, anti-do wet strong, anti-softening strong, corrosion-resistant strong, waterproof and dampproof, technology is simple, with low cost, energy-saving effect is remarkable and broad-spectrum magnesial composite foam material.
To achieve these goals, the present invention has adopted following technical scheme.The magnesial composite foam material is starched as foam with the rosin foaming agent aqueous solution, starches as base-material with composite magnesial material.But base-material slurry is to be main raw material with flyash, do not adopt sawdust, and formula constituent has new important breakthrough.
1. rosin foaming agent: it is earlier the rosin powder to be dissolved in aqueous sodium hydroxide solution fully, stirs formulated with the gelatine aqueous solution again.Its parts by weight prescription is 100 parts of rosin, sodium hydroxide 15-18 part, gelatine 106-131 part, water 171-232 part.Rosin foaming agent pH value 8-9, surface tension is greater than 50 dyne/cm, foam degree (45-100) %.Preparation voluntarily, price is very cheap.
(1) effect of rosin foaming agent raw material composition
The rosiny effect is that bleed forms bubble in the saponification process.The effect of sodium hydroxide is to make rosin realize saponification, and its consumption must be complementary with rosin.The effect of gelatine is the surface tension that increases bubble, makes bubble solid stable, and its consumption is The more the better, but consumption is too much influential to bubble formation.Water plays solvent action, is the essential condition of preparation, and consumption can not lack.
(2) application example of rosin foaming agent parts by weight prescription
Rosin foaming agent 1: 100 parts of rosin, 15 parts in sodium hydroxide, 106 parts in gelatine, 171 parts in water.It is applicable to 900-1200kg/m
3The material product of the present invention of unit weight.
Rosin foaming agent 2: 100 parts of rosin, 16.6 parts in sodium hydroxide, 118.3 parts in gelatine, 201.7 parts in water.It is applicable to 300-900kg/m
3The material product of the present invention of unit weight.
Rosin foaming agent 3: 100 parts of rosin, 18 parts in sodium hydroxide, 131 parts in gelatine, 232 parts in water.It is applicable to 50-300kg/m
3The material product of the present invention of unit weight.
(3) effect of rosin foaming agent is the bleed foaming, forms vesicular structure, weight reduction.Its consumption macro porosity more is big more, and unit weight is just more little.Void content is up to 96%, and the unit weight minimum is 50kg/m
3The rosin foaming agent to the adiabatic heat-insulation of material product of the present invention, sound insulation sound absorption, freeze thawing intensity, do wet tenacity, softening intensity, endurance quality, erosion resistance, waterproof and dampproof and energy-saving effect etc. and all have comprehensive enhancement.
(4) percentage concentration of the rosin foaming agent aqueous solution is 2.22%, and corresponding parts by weight prescription is 1 part of a rosin foaming agent, 44 parts in water.During practical application, the material product of the present invention of different unit weights can select to adopt the rosin foaming agent of different ingredients by above-mentioned example.But the percentage concentration of rosin foaming agent solution is constant.
2. flyash: its loss on ignition is not more than 15%, SO
3Content is not more than 4%, SiO
2Content is not less than 40%, Al
2O
3Content is not less than 15%, and fineness is not more than 1mm and respectively accounts for half with following powdered granule weight content more than 0.333mm.Wherein, 0.333-1mm particle flyash works the effect of gathering materials, and the following particle flyash of 0.333mm plays cementation.And has fire-resistant, a toughness reinforcing effect of holding temperature, reducing cost of not firing.But consumption is crossed product strength is descended.
3. magnesia unslacked: content of magnesia is greater than 85%, and fineness is greater than 180 orders, and Calcium of intensifiens content is less than 2%.It mainly plays cementation, the big toughness height of consumption, but the hard end, is low.
4. magnesium chloride: its content is greater than 45%, and sulfate radical content is less than 2%, and sodium chloride content is less than 2.0%, and KCE content is less than 0.5%.The magnesium chloride brine percentage concentration is 25%.It mainly plays solidification, and the big more hardness of consumption is high more, but the excessive easy damp suction surface halide accumulation of consumption, strain cracking, reduction intensity.
5. polyacrylamide emulsion: its percentage concentration is 25%.It to the toughness of material product of the present invention, wear-resisting, heat-resisting, cold-resistant, corrosion resistant, anti-water, anti-aging etc. have a comprehensive enhancing modified effect.Consumption is big more within the specific limits, and comprehensive enhancing modified effect is good more.
6. alkali resistant staple glass fibre: its length is 20-40mm.Its effect is the physical and mechanical property that strengthens material product of the present invention.Consumption is The more the better, but consumption too much can influence operation, difficult quality guarantee.
The parts by weight prescription of above-mentioned six kinds of components is:
100 parts of rosin foaming agent solution (concentration 2.22%)
Magnesia unslacked (content of magnesia 〉=85%, fineness 〉=180 orders) 41-740 part
Magnesium chloride solution (concentration 25%) 62-1098 part
Polyacrylamide emulsion (concentration 25%) 10-184 part
Flyash (dry ash water ratio≤1%, fineness 〉=100 orders) 41-740 part
Alkali resistant staple glass fibre (length 20-40mm) 2-31 part
Manufacturing process of the present invention is at first to carry out all preparation works, secondly according to prescription consumption batching, the rosin foaming agent is added water to be stirred abundant saponification rapidly and is mixed with foam slurry, and synchronously separately according to magnesia unslacked, magnesium chloride solution, polyacrylamide emulsion, flyash, mixing and stirring is mixed with the base-material slurry to the such order of alkali resistant staple glass fibre while feeding in raw material, again immediately with foam slurry and base-material slurry mixing and stirring, by to stirring velocity, the control of churning time, when the mixture void content is met the requirements after testing, Integratively is cast in the special mould, normal temperature and pressure solidifies, the demoulding, maintenance forms vesicular structure, finishing touch, table place or covering with paint goods.
Purposes of the present invention is that available magnesial composite foam material is produced all kinds of walling units, body of wall dress plate, the heat insulating thermal preserving board of combined wall and compound roof system, the adiabatic heat-insulation balcony slab, big office partition, greenhouse frame, freezing storehouse, the adiabatic heat-insulation prefabricated house, wide span house cap, fireproof interlayer, loose packing layer, the reflected ray layer, the thermal radiation screen layer, every the vapour layer, sound insulation sound absorption goods, adiabatic heat-insulation building enclosure goods, energy saving door and window, fire door, antitheft door, goods such as furniture, and available it substitute wood, steel, stone, mould, traditional construction material goods such as aluminium.
Analyze technique scheme of the present invention, characteristics of the present invention as can be seen: the first, the present invention is a physical blowing technology.Mix in the process that stirs with the base-material slurry at the foam slurry,, introduce a large amount of evenly micro bubbles of sealing, make and contain air in certain amount in the mixture by the surfactivity effect of rosin foaming agent.Treat that mixture is cast in the special product mold behind the curing molding, through the normal temperature and pressure maintenance, foam is along with the evaporation of the moisture formation vesicular structure of dying away.The last pore that stays many even sealings in inside externally forms the concavo-convex surface of blister.Thereby make material of the present invention have the performance of adiabatic heat-insulation, sound insulation sound absorption and obvious energy conservation.It is easy and simple to handle, and less investment, cost are low.The second, the present invention compares with the optimization formula of composite magnesial material, has removed this red label goods of sawdust in the present invention's prescription, can improve and not fire fire performance; The flyash consumption has increased about twice in the present invention prescription, is to gather materials and is agglutinate, and magnesium oxide, magnesium chloride and polyacrylamide consumption have reduced, and can reduce cost greatly; Magnesium chloride solution concentration is 25%, is lower than the lower value of composite magnesial material formula concentration scope (26-50) %, and is very favourable to preventing damp suction surface halide accumulation, strain cracking.The 3rd, the present invention is main raw material with flyash, turns waste into wealth, and light weight is inexpensive, gathers materials on the spot, and is very convenient.Making full use of of flyash can solve flyash bulk deposition, contaminate environment, tie up the serious problems in soil.Along with the fast development of thermal power generation, development and use flyash has been the task of top priority.The present invention meets national industrial policies, is the development priority that country encourages promotion.The 4th, composite magnesial material is the compact substance structure, changes the size of unit weight and intensity by the content umber of adjusting the prescription each component, and setting range is very little, and the unit weight scope is 1200-1550kg/m
3And the present invention is a vesicular structure, and by adjusting the size that void content size and base-material consumption change unit weight and intensity, setting range is very big, and unit weight can be at 50-1200kg/m
3Within select for use arbitrarily according to purposes so that satisfy the requirement of different functions of use.The 5th, the present invention adopts the rosin foaming agent of preparation voluntarily as whipping agent, and surface tension, foam degree, cost value etc. all are better than existing foaming agent.Its major cause is to have added gelatine, thereby has produced beyond thought effect.Surface tension is big, and bubble stability is strong, helps grasping controlling the size of void content well.Void content is up to 96%, and minimum is zero, thereby can make unit weight at 50-1200kg/m
3Within adjust arbitrarily.Widened Application Areas of the present invention so widely.And the rosin foaming agent also has outstanding more superiority.Because its effect makes material product of the present invention improve freeze thawing intensity, does wet tenacity, softening intensity, erosion resistance, water resistance, endurance quality and energy-saving effect.The 6th, the present invention can be used as the substitute of traditional materials for walls such as all kinds of bricks, building block, wallboard, warming plate.Through measuring and calculating, 100,000,000 blocks of clay bricks of every replacement can take 150 mu in farmland less, and its price is a little less than the existing detailed estimate price of brick wall, and facility investment does not seldom need the waste disposal fund.To development body of wall assemblingization, change manual backwardness of laying bricks, raise labour productivity, shorten construction period, be a great change.Provide the comparing result of the present invention and the every technical indicator of composite magnesial material below.
Provide the comparing result of the present invention and the every technical indicator of adiabatic sound absorption fire-proof material product below.
| Technical indicator | The present invention | Composite magnesial material | |
| Unit weight (kg/m 3) | ????50-900 | ????1200-1550 | |
| Void content (%) | ????96-33 | ????0 | |
| Ultimate compression strength (MP a) | ????0.1-10 | ????10-45 | |
| Thermal conductivity (W/m.k) | ????0.03-0.15 | ????≥1.85 | |
| Sound insulation index (dB) | ????≥48 | ????≥32 | |
| Drying shrinkage value (mm/m) | ????≤0.05 | ????≤0.05 | |
| Coefficient of softening | ????≥0.85 | ????≥0.55 | |
| Do wet tenacity coefficient (circulating 15 times) | ????≥0.80 | ||
| Frost resistance (circulating 15 times) | Weight loss (%) | ????≤5 | ????≤5 |
| Loss of strength (%) | ????≤20 | ????≤25 | |
| Fire line | Do not fire | Do not fire | |
| Technical indicator | Plate of material of the present invention (pipe watt) | Cement perlite plate (pipe watt) (Tianjin lagging material factory goods) |
| Unit weight (kg/m 3) | ????200-300 | ????250-350 |
| Ultimate compression strength (MP a) | ????1.5-2.8 | ????0.3-0.5 |
| Thermal conductivity (W/m.k) | ????0.050-0.065 | ????0.058-0.070 |
| Sound absorption coefficient (mean value) | ????0.50 | ????0.62 |
| Use temperature (℃) | ????≤980 | ???≤650 |
| Fire line | Do not fire | Do not fire |
Embodiment 3: this routine unit weight 900kg/m
3, be mainly used in energy saving door and window, fire door, antitheft door, furniture etc.
100 parts of rosin foaming agent solution (concentration 2.22%)
740 parts of magnesia unslackeds (content of magnesia 〉=85%, fineness 〉=180 orders)
1098 parts of magnesium chloride solutions (concentration 25%)
184 parts of polyacrylamide emulsions (concentration 25%)
740 parts in flyash (dry ash water ratio≤1%, fineness 〉=100 orders)
31 parts of alkali resistant staple glass fibres (length 20-40mm)
By above-mentioned contrast and example, material of the present invention both can be used for substituting traditional materials for wall goods such as all kinds of building blocks, wallboard, warming plate, can be used for substituting the adiabatic sound absorption of tradition fire-proof material products such as rock wool, slag wool, glass wool, perlite, vermiculite, plastic foam, aluminum silicate fiber again, also can be used for substituting wood, steel, stone, mould, traditional construction material goods such as aluminium.
Claims (6)
1. magnesial composite foam material, it is characterized in that it is to starch in the process of mixing and stirring at foam slurry and base-material, surfactivity effect by the rosin foaming agent, introduce the micro bubble of a certain amount of even sealing, Integratively is cast in curing molding in the special mould, and the normal temperature and pressure maintenance forms the goods of vesicular structure.Wherein, the foam slurry stirs abundant saponification rapidly with the rosin foaming agent aqueous solution and forms, and the base-material slurry forms with magnesia unslacked, magnesium chloride solution, polyacrylamide emulsion, flyash, alkali resistant staple glass fibre mixing and stirring.
2. magnesial composite foam material according to claim 1, the parts by weight prescription of the rosin foaming agent solution that it is characterized in that being adopted, magnesia unslacked, magnesium chloride solution, polyacrylamide emulsion, flyash, alkali resistant staple glass fibre is 100 parts of rosin foaming agent solution, magnesia unslacked 41-740 part, magnesium chloride solution 62-1098 part, polyacrylamide emulsion 10-184 part, flyash 41-740 part, alkali resistant staple glass fibre 2-31 part.
3. magnesial composite foam material according to claim 1 is characterized in that the rosin foaming agent that is adopted is earlier the rosin powder to be dissolved in aqueous sodium hydroxide solution fully, stirs formulated with the gelatine aqueous solution again.The parts by weight prescription of rosin foaming agent is 100 parts of rosin, sodium hydroxide 15-18 part, gelatine 106-131 part, water 171-232 part.Rosin foaming agent pH value 8-9, surface tension is greater than 50 dyne/cm, foam degree (45-100) %.The percentage concentration of the rosin foaming agent aqueous solution is 2.22%.
4. magnesial composite foam material according to claim 1 is characterized in that the flyash loss on ignition that is adopted is not more than 15%, SO
3Content is not more than 4%, SiO
2Content is not less than 40%, Al
2O
3Content is not less than 15%, and fineness is not more than 1mm and respectively accounts for half with following powdered granule weight content more than 0.333mm.
5. magnesial composite foam material according to claim 1 is characterized in that the percentage concentration of the magnesium chloride brine that adopted is 25%.
6. magnesial composite foam material according to claim 1, it is characterized in that available it produce all kinds of walling units, body of wall dress plate, the heat insulating thermal preserving board of combined wall and compound roof system, the adiabatic heat-insulation balcony slab, big office partition, greenhouse frame, freezing storehouse, the adiabatic heat-insulation prefabricated house, wide span house cap, fireproof interlayer, loose packing layer, the reflected ray layer, the thermal radiation screen layer, every the vapour layer, sound insulation sound absorption goods, adiabatic heat-insulation building enclosure goods, energy saving door and window, fire door, antitheft door, goods such as furniture, and available it substitute wood, steel, stone, mould, traditional construction material goods such as aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB98104803XA CN1163436C (en) | 1998-01-18 | 1998-01-18 | Magnesium based composite foamed material and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB98104803XA CN1163436C (en) | 1998-01-18 | 1998-01-18 | Magnesium based composite foamed material and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1193615A true CN1193615A (en) | 1998-09-23 |
| CN1163436C CN1163436C (en) | 2004-08-25 |
Family
ID=5218468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB98104803XA Expired - Fee Related CN1163436C (en) | 1998-01-18 | 1998-01-18 | Magnesium based composite foamed material and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1163436C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116123A (en) * | 2009-12-30 | 2011-07-06 | 杨新华 | Application of magnesium chloride in special materials for fire door |
| CN102444234A (en) * | 2010-10-09 | 2012-05-09 | 上海运尔实业有限公司 | Multi-functional concrete compound heat insulating and heat preserving brick and preparation and application thereof |
| CN103073984A (en) * | 2013-01-24 | 2013-05-01 | 陕西科技大学 | Water-base composite foaming slurry for synthetic leather and preparation method of water-base composite foaming slurry |
-
1998
- 1998-01-18 CN CNB98104803XA patent/CN1163436C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116123A (en) * | 2009-12-30 | 2011-07-06 | 杨新华 | Application of magnesium chloride in special materials for fire door |
| CN102444234A (en) * | 2010-10-09 | 2012-05-09 | 上海运尔实业有限公司 | Multi-functional concrete compound heat insulating and heat preserving brick and preparation and application thereof |
| CN103073984A (en) * | 2013-01-24 | 2013-05-01 | 陕西科技大学 | Water-base composite foaming slurry for synthetic leather and preparation method of water-base composite foaming slurry |
| CN103073984B (en) * | 2013-01-24 | 2015-02-25 | 陕西科技大学 | Water-base composite foaming slurry for synthetic leather and preparation method of water-base composite foaming slurry |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1163436C (en) | 2004-08-25 |
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