CN1085488A - A kind of inorganic foamed material and production method thereof - Google Patents
A kind of inorganic foamed material and production method thereof Download PDFInfo
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- CN1085488A CN1085488A CN 93109991 CN93109991A CN1085488A CN 1085488 A CN1085488 A CN 1085488A CN 93109991 CN93109991 CN 93109991 CN 93109991 A CN93109991 A CN 93109991A CN 1085488 A CN1085488 A CN 1085488A
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- flyash
- inorganic foamed
- foamed material
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Abstract
The present invention relates to a kind of inorganic foamed material and production method thereof, major ingredient comprises light-burning magnesium powder and magnesium chloride brine, and filler comprises flyash or its substitute, and modifier and blowing agent.Various components drop in the container and mix, stir by proper proportion and feeding sequence, inject mould, at room temperature after the natural curing, get final product the demoulding.Site operation is integrated poured also can.This inorganic foamed material characteristics are that unit weight is little, thermal and insulating performance good, are suitable for the heat preserving and insulating material as internal wall brick and roof, pipeline etc.Technology of the present invention is simple, and raw material sources are extensive, has advantages such as energy-conservation, that profit is useless.
Description
The present invention relates to a kind of inorganic foamed material and production method thereof, it is by major ingredient light-burning magnesium powder and magnesium chloride brine, adds material flyash (or its substitute) and modifier phosphoric acid, blowing agent hydrogen peroxide, by proper proportion and certain feeding sequence, put in the container, after mixing and stirring, inject among the mould, after at room temperature maintenance was solidified voluntarily, the demoulding formed.
In " examination department of Patent Office of the People's Republic of China search report ", an invention more with the contained component general character of the present invention is " mechanical-moulded modified magnesium-cement corrugated tile " (application number: 91107373.6, publication number: CN1066048A, applicant: Shanghai Silicate Inst., Chinese Academy of Sciences).In the disclosed modified magnesium-cement prescription of this patent application, there are 4 kinds of components identical with the present invention, but contained share difference.Modified magnesium-cement also is with important difference of the present invention on component, the hydrogen peroxide that has not contained foaming effect in the modified magnesium-cement, therefore, modified magnesium-cement unit weight is big, sound isolating and heat insulating performance is poor, be suitable for doing corrugated tile and be not suitable for as the insulation, heat-barrier material, also be unsuitable for raw material as the light internal wall brick.In addition, add material flyash in the component of the present invention, can also substitute, enlarged the source of raw material with other industrial waste.
The modified magnesium-cement prescription relatively sees the following form with inorganic foamed material prescription of the present invention (parts by weight):
| Modified magnesium-cement | Inorganic foamed material |
| Magnesia (containing Mg075%): 205-225 | Light-burning magnesium powder (containing MgO 〉=85%): 100～125 |
| Enriched bittern cake: water (1:1) 80～100 | MgCl 2Solution (MgCl 2:H 2O=1:1):75～128 |
| Flyash: 54～58 | Flyash: 10～30 (or its substitutes: 20～50) |
| Wood chip: 20～22 | Hydrogen peroxide: 5～8 |
| Phosphoric acid: 0.4～1.0 | Phosphoric acid: 1～2 |
The objective of the invention is to avoid above-mentioned weak point of the prior art and a kind of inorganic foamed material and production method thereof are provided, so that provide a kind of raw material sources lightweight, insulation, heat-barrier material widely for building material industry.
The major ingredient of inorganic foamed material of the present invention comprises light-burning magnesium powder (containing MgO 〉=85%) and magnesium chloride brine (MgCl
2: H
2O=1: 1), add material and be flyash or its substitute, blowing agent is a hydrogen peroxide, and modifier is phosphoric acid.Wherein the substitute of flyash has, boiler ash sediment (80～100 order), quartz sand waste material (120～140 order) and calcium sulfite (180～200 order) through pulverizing; Any with in three kinds of substitutes, all alternative flyash wherein.
The prescription of inorganic foamed material of the present invention (parts by weight) is:
Light-burning magnesium powder (containing MgO 〉=85%): 100～125
Magnesium chloride brine (MgCl
2: H
2O=1: 1): 75～128
Flyash: 10～30(or coal ash instead thing: 20～50)
Hydrogen peroxide: 5～8
Phosphoric acid: 1～2
In the prescription of inorganic foamed material of the present invention, the substitute of flyash comprises the boiler ash sediment of pulverizing (80～100 order), quartz sand waste material (120～140 order), calcium sulfite (180～200 order).Any in three kinds of substitutes all can replace flyash wherein, and the parts by weight of adding are 20～50.
The production method of inorganic foamed material of the present invention is, according to following feeding sequence:
Magnesium chloride brine → phosphoric acid → flyash (or its substitute) → light-burning magnesium powder → hydrogen peroxide,
Parts by weight according to providing in the prescription feed intake in container successively, stir while feeding intake, and after stirring, inject among the mould.Under room temperature (15 ℃～35 ℃) condition, the air care through 5～12h gets final product the demoulding.
The optimum formula of inorganic foamed material of the present invention is:
Light-burning magnesium powder (containing MgO 〉=85%): 120～125
Magnesium chloride brine (MgCl
2: H
2O=1: 1): 100～110
Flyash: 20～30
(or the substitute of flyash: 25～30)
Phosphoric acid: 1.5～2
Hydrogen peroxide: 6～8
The best room temperature condition of natural curing of the present invention is 25～30 ℃.At ambient temperature, temperature is high more, solidifies soon more, and required curing time is short more.
The present invention is described in further detail below in conjunction with embodiment:
Embodiment 1:
By weight, its prescription is:
Light-burning magnesium powder (containing MgO 〉=85%): 120
Magnesium chloride brine (MgCl
2: H
2O=1: 1): 100
Flyash: 20
Phosphoric acid: 1.5
Hydrogen peroxide: 6
Feeding sequence is: magnesium chloride brine → phosphoric acid → flyash → light-burning magnesium powder → hydrogen peroxide.In container, feed intake successively by this feeding sequence, stir while feeding intake.After stirring, inject among the mould.Under 28 ℃ room temperature,, carry out the demoulding then through 7～8 hours air care.
Embodiment 2
By weight, its prescription is:
Light-burning magnesium powder (containing MgO 〉=85%): 100
Magnesium chloride brine (MgCl
2: H
2O=1: 1): 105
Flyash: 25
Phosphoric acid: 2
Hydrogen peroxide: 7.5
According to the identical feeding sequence of embodiment 1, in container, feed intake successively, stir while feeding intake, after stirring, inject mould.Under 30 ℃ of conditions of room temperature,, carry out the demoulding then through the air care of 5～6h.
The inorganic foamed material that the present invention produced, after testing the proof, its thermal conductivity factor low (0.9～0.1W/M-K), compression strength higher (6～7MPa), can in-40 ℃～1000 ℃ temperature ranges, use, be a kind of fire-retardant light material.
The present invention compared with prior art has following advantage:
1, since adopted inorganic foamed technology, the product of producing have light weight, insulation, fire-retardant, high temperature resistant, do not lose and the advantage such as do not eat into, overcome the shortcomings such as existing magnesite construction material capacity is big, thermal conductivity factor is big;
2, raw material sources of the present invention are extensive, and the flyash in the prescription and substitute thereof are industrial waste, therefore, can improve environment, turn waste into wealth, and have obvious social benefit;
3, inorganic foamed material of the present invention is of many uses, can as light wall material and roof, pipeline, freezer, refrigerator, refrigerator-freezer, boiler, The heat preserving and insulating material of kiln etc. also can be used for the artificial hillock moulding and is used as the low temperature refractory material;
4, production method of the present invention is simple, and it is few to take equipment, only needs necessary container instrument and mould, can organize production, has unpoweredly all can; And the shape of product, big I change with tool change;
But 5, both mould molding (comprising cast-in-place shaping) of material of the present invention can be used for again spraying, and moulding material can be sawed, can dig, can bore a hole, can imbed prefabricated component, and with other material good adhesive property is arranged.
Claims (3)
1, a kind of inorganic foamed material and production method thereof, its major ingredient is by light-burning magnesium powder (containing MgO 〉=85%) and magnesium chloride brine (MgCl
2: H
2O=1: 1) form, add material package and draw together flyash and modifier phosphoric acid, it is characterized in that,
Also include the blowing agent hydrogen peroxide in the component, add material flyash and can replace with substitute, its prescription (parts by weight) is,
Light-burning magnesium powder (containing MgO 〉=85%) 100～125,
Magnesium chloride brine (MgCl
2: H
2O=1: 1) 75～128,
Flyash 10～30 (or its substitute 20～50),
Hydrogen peroxide 5～8,
Phosphatase 11～2.
2, the prescription of inorganic foamed material according to claim 1, coal ash instead thing wherein comprises the boiler ash sediment (80～120 order) through pulverizing, quartz sand waste material (120～140 order) or calcium sulfite (180～200 order), any flyash that all can replace wherein in these three kinds of waste materials, the parts by weight of adding are 20～50.
One of 3, the production method of inorganic foamed material according to claim 1 and 2, its feeding sequence be, magnesium chloride brine → phosphoric acid → flyash (or its substitute) → light-burning magnesium powder → hydrogen peroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93109991 CN1085488A (en) | 1993-08-26 | 1993-08-26 | A kind of inorganic foamed material and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93109991 CN1085488A (en) | 1993-08-26 | 1993-08-26 | A kind of inorganic foamed material and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1085488A true CN1085488A (en) | 1994-04-20 |
Family
ID=4987901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93109991 Withdrawn CN1085488A (en) | 1993-08-26 | 1993-08-26 | A kind of inorganic foamed material and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1085488A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420556C (en) * | 2005-10-28 | 2008-09-24 | 孙永成 | Production method of heat insulating composite building block |
| CN102603264A (en) * | 2012-03-28 | 2012-07-25 | 王佳水 | Integral casting house made by reusing solid waste and method |
| CN104446321A (en) * | 2014-11-27 | 2015-03-25 | 武汉大学 | Carbon-negative environment-friendly magnesia-wood chip composite floor tile and preparation method thereof |
-
1993
- 1993-08-26 CN CN 93109991 patent/CN1085488A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420556C (en) * | 2005-10-28 | 2008-09-24 | 孙永成 | Production method of heat insulating composite building block |
| CN102603264A (en) * | 2012-03-28 | 2012-07-25 | 王佳水 | Integral casting house made by reusing solid waste and method |
| CN104446321A (en) * | 2014-11-27 | 2015-03-25 | 武汉大学 | Carbon-negative environment-friendly magnesia-wood chip composite floor tile and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WW01 | Invention patent application withdrawn after publication |