CN101531075B - Magnesite hot press composite board - Google Patents
Magnesite hot press composite board Download PDFInfo
- Publication number
- CN101531075B CN101531075B CN200910064622.XA CN200910064622A CN101531075B CN 101531075 B CN101531075 B CN 101531075B CN 200910064622 A CN200910064622 A CN 200910064622A CN 101531075 B CN101531075 B CN 101531075B
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- CN
- China
- Prior art keywords
- magnesite
- percent
- composite board
- hot press
- alkali
- Prior art date
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Classifications
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- 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
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
Landscapes
- 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)
- Laminated Bodies (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a magnesite hot pressing composite board, belonging to the field of novel board materials. The magnesite hot pressing composite board is formed by a magnesite modified material as a gelled material, moderate-alkali or alkali-free interwoven grid glass-fiber fabric as a reinforcing material, and a centrifugal glass cotton plate clamped in the middle through a special process compounding machine, wherein the magnesite modified material is prepared by the following compositions in percentage by weight: 30 to 40 percent of magnesium oxide, 10 to 20 percent of magnesium chloride, 20 to 40 percent of quartz sand, 0.5 to 1 percent of a foaming agent, 0.5 to 1 percent of a modifying agent, and 10 to 20 percent of water. The material has the advantages of non combustion, environmental protection, energy conservation, light weight, high strength and the like; the board material has smooth surface, does not rust, mildew or dehylogenate, has service life of over 20 years, and is a perfect material for replacing an anti-exhaust pipe and a heating and ventilating pipe.
Description
Technical field
The invention belongs to board field, relate to anti-smoke evacuation composite air duct, air conditioning wind pipe, be specifically related to a kind of magnesite hot press composite board.
Background technology
At present, anti-smoke evacuation composite air duct, the air conditioning wind pipe of using on market adopts iron sheet, glass steel clamp foam to make mostly, not only Heavy Weight, make the large and folder foam fireproof of coarse, inleakage and do not reach B1 level; Also as anti-smoke exhaust pipe, also there is intensity difference in useful aluminium foil phenolic aldehyde sheet material, absorb water too high, and fire prevention do not reach fire-fighting requirement yet.
Summary of the invention
In order to break through the shortcoming of traditional air duct board, the object of the invention is to provide a kind of intensity of existing iron duct, and fire prevention A level do not fire, and environmental protection is lightweight, the Novel magnesite hot press composite board of long service life.
This magnesite hot press composite board taking magnesite modification material as Binder Materials and middle alkali or alkali-free interwoven mesh glass-fiber-fabric be reinforcing material, therebetween hot pressing centrifugally glass-wool plate is through the moulding of heat pressing process multiple mechanism.Wherein, magnesite modification material is by 30%～40% magnesia, 10%～20% magnesium chloride, and 20%～40% quartz sand, 0.5%～1% blowing agent, 0.5%～1% modifier, 10%～20% water is formulated, and above component is all weight percentage; Hot pressing centrifugally glass-wool plate is to be formed by high temperature hot pressing processing by finished product centrifugally glass-wool.Modifier is made up of with percentage by weight following component: citric acid 40%, tartaric acid 40%, methylcellulose 5%, sodium methylene bis-naphthalene sulfonate 6% (NNO diffusant), alum 9%.Blowing agent is made up of with percentage by weight following component: gelatine 3%, NaOH 46%, natrium carbonicum calcinatum 6%, rosin 30%, water 15%.NNO diffusant main component is sodium methylene bis-naphthalene sulfonate, is city's product.
Its technique manufacturing process: A. finished product centrifugally glass-wool plate by machine hot pressing to for subsequent use after certain thickness.
B. various compositions required magnesite modification Binder Materials being poured successively into agitator stirs after (approximately 10 minutes), slurry is poured in sheet-forming machine, add middle alkali or the alkali-free glass fiber reticular cloth that interweaves, hot pressing centrifugally glass-wool plate is placed on to the position that forming machine specifies, machine-processed composite molding sheet material; Then, put into railcar and advance the curing room maintenance 12 hours of 25 DEG C～40 DEG C.Thick 5mm～the 120mm of this sheet material, wide is 1000mm～1500mm, long is 2000mm～6000mm.
Advantage of the present invention and good effect: with magnesite modification material be Binder Materials, middle alkali or alkali-free glass fiber interwoven mesh fabric are reinforcing material, taking hot pressing centrifugally glass-wool plate as insulation material, make composite layered board through special process compounding machine.This material monolithic does not fire, insulation material does not fire, and can reach fire prevention A level and not fire.Environmental protection, energy-conservation, light weight, intensity are high, and the plate surface of making is smooth, and non-corrosive, not mouldy, halogenation, service life reach more than 20 years, are preferably anti-smoke exhaust pipe and warm ventilation pipe substitution material.
Detailed description of the invention
For the present invention is illustrated better, as follows for embodiment:
Equipment: 1. mixer; 2. foaming bucket; 3. sheet-forming machine; 4. infrared ray temperature and humidity control instrument; 5. fog room.
Embodiment 1
(1) finished product centrifugally glass-wool plate by machine hot pressing to for subsequent use after certain thickness.
(2) magnesium chloride 10kg, water 10kg pours in container and dissolves 12 hours, then adds blowing agent 0.5kg, and modifier 0.5kg stirs 1 minute, then adds 20kg magnesia and 20kg silica flour, stirs for subsequent use.Modifier is formulated with percentage by weight by following component: citric acid 40%, tartaric acid 40%, methylcellulose 5%, NNO diffusant 6%, alum 9%; Blowing agent is formulated with percentage by weight by following component: gelatine 3%, NaOH 46%, light soda ash 6%, rosin 30%, water 15%.Above industrial chemicals is city's product.
(3) pour the slurries of accomplishing fluently into sheet-forming machine, once add in two layers alkali or the alkali-free glass that interweaves to strengthen cloth, ready centrifugally glass-wool plate is placed on the position that machine specifies, then add two layers of neutral-alkaline cloth, machine-processed moulding.
(4) plate of moulding is advanced with maintenance in the curing room of 25 DEG C～40 DEG C of infrared thermometers 12 hours by railcar.
Embodiment 2
With embodiment 1, difference is: step (2) is magnesium chloride 15kg, and water 15kg pours in container and dissolves 12 hours, then add blowing agent 0.5kg, modifier 0.5kg, stirs 1 minute, add again 25kg magnesia and 25kg silica flour, stir for subsequent use.
Claims (4)
1. magnesite hot press composite board, is characterized in that: taking magnesite modification material as Binder Materials, middle alkali or alkali-free glass fiber interwoven mesh fabric are reinforcing material, are composited taking centrifugally glass-wool plate as insulation material; Magnesite modification Binder Materials is made up of with percentage by weight following component: 30%～40% magnesia, 10%～20% magnesium chloride, 20%～40% quartz sand, 0.5%～1% blowing agent, 0.5%～1% modifier, 10%～20% water;
Modifier is made up of with percentage by weight following component: citric acid 40%, tartaric acid 40%, methylcellulose 5%, sodium methylene bis-naphthalene sulfonate 6%, alum 9%.
2. magnesite hot press composite board according to claim 1, is characterized in that: blowing agent is made up of with percentage by weight following component: gelatine 3%, NaOH 46%, natrium carbonicum calcinatum 6%, rosin 30%, water 15%.
3. magnesite hot press composite board according to claim 1, is characterized in that: thickness of slab 5mm～120mm.
4. magnesite hot press composite board according to claim 1, is characterized in that: its width is 1000mm～1500mm, and long is 2000mm～6000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910064622.XA CN101531075B (en) | 2009-04-13 | 2009-04-13 | Magnesite hot press composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910064622.XA CN101531075B (en) | 2009-04-13 | 2009-04-13 | Magnesite hot press composite board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101531075A CN101531075A (en) | 2009-09-16 |
| CN101531075B true CN101531075B (en) | 2014-11-12 |
Family
ID=41102028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910064622.XA Active CN101531075B (en) | 2009-04-13 | 2009-04-13 | Magnesite hot press composite board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101531075B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423932A (en) * | 2011-10-12 | 2012-04-25 | 台山先驱建材有限公司 | Lightweight composite plate |
| CN102493567B (en) * | 2011-12-30 | 2014-07-16 | 广东亿健绿色住宅材料工业有限公司 | Production method for composite thermal insulation boards |
| CN102992688B (en) * | 2012-09-29 | 2014-12-24 | 金华运酬科技有限公司 | Magnesite modifying agent |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1765814A (en) * | 2005-09-20 | 2006-05-03 | 沈金良 | Novel composite material for blast pipe sheet |
-
2009
- 2009-04-13 CN CN200910064622.XA patent/CN101531075B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1765814A (en) * | 2005-09-20 | 2006-05-03 | 沈金良 | Novel composite material for blast pipe sheet |
Non-Patent Citations (2)
| Title |
|---|
| 复合式改性菱镁通风管道的研究与生产实践;朱玉杰;《玻璃钢/复合材料》;20020131;39-41 * |
| 朱玉杰.复合式改性菱镁通风管道的研究与生产实践.《玻璃钢/复合材料》.2002,39-41. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101531075A (en) | 2009-09-16 |
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