CN101531075A - Magnesite hot press composite board - Google Patents

Magnesite hot press composite board Download PDF

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Publication number
CN101531075A
CN101531075A CN200910064622A CN200910064622A CN101531075A CN 101531075 A CN101531075 A CN 101531075A CN 200910064622 A CN200910064622 A CN 200910064622A CN 200910064622 A CN200910064622 A CN 200910064622A CN 101531075 A CN101531075 A CN 101531075A
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China
Prior art keywords
magnesite
percent
composite board
hot press
alkali
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Application number
CN200910064622A
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Chinese (zh)
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CN101531075B (en
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沈金良
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Individual
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Individual
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Priority to CN200910064622.XA priority Critical patent/CN101531075B/en
Publication of CN101531075A publication Critical patent/CN101531075A/en
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Publication of CN101531075B publication Critical patent/CN101531075B/en
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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
    • 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
    • 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

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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)
  • 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

Magnesite hot press composite board
Technical field
The invention belongs to the 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 the market adopts iron sheet, fiberglass folder foam to make mostly, not only Heavy Weight, make coarse, inleakage big and the folder foam fireproof does not reach the B1 level; Also there is intensity difference in also useful aluminium foil phenolic aldehyde sheet material as anti-smoke exhaust pipe, and it is too high to absorb water, and fire prevention does not reach the 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 sheet airduct, and fire prevention A level do not fire, and environmental protection is in light weight, the novel magnesite hot press composite board of long service life.
This magnesite hot press composite board is that Binder Materials and middle alkali or the alkali-free grid glass cloth that interweaves is reinforcing material with the magnesite modification material, and therebetween hot pressing centrifugally glass-wool plate is through the moulding of heat pressing process multiple mechanism.Wherein, the 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 all is weight percentage; Hot pressing centrifugally glass-wool plate is to be formed by the high temperature hot-pressing processing by the 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 a sodium methylene bis-naphthalene sulfonate, is city's product.
Its technology manufacturing process: A. is standby to the certain thickness by machine hot pressing finished product centrifugally glass-wool plate.
B. the magnesite modification Binder Materials is required various compositions are poured agitator successively into and are stirred after (about 10 minutes), slurry is poured in the sheet-forming machine, alkali or the alkali-free glass fiber reticular cloth that interweaves in the adding is placed on the position of make-up machine regulation, machine-processed composite molding sheet material to hot pressing centrifugally glass-wool plate; Then, put into railcar and advance 25 ℃～40 ℃ maintenance room maintenance 12 hours.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 the magnesite modification material is Binder Materials, and middle alkali or the alkali-free glass fiber grid cloth that interweaves is reinforcing material, is insulation material with hot pressing centrifugally glass-wool plate, makes the composite plate material through the 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 height, the plate surface of making is smooth, and non-corrosive, not mouldy, halogenation, reach more than 20 years service life, is preferable anti-smoke exhaust pipe and HVAC airduct substitution material.
The specific embodiment
For the present invention is illustrated better, as follows for embodiment:
Equipment: 1. mixer; 2. bucket foams; 3. sheet-forming machine; 4. infrared ray temperature and humidity control instrument; 5. fog room.
Embodiment 1
(1) standby to the certain thickness finished product centrifugally glass-wool plate by machine hot pressing.
(2) magnesium chloride 10kg, water 10kg pours into and dissolves 12 hours in the container, adds blowing agent 0.5kg then, and modifier 0.5kg stirred 1 minute, added 20kg magnesia and 20kg silica flour again, and it is standby to stir.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 and strengthen cloth, ready centrifugally glass-wool plate is placed on the position that machine stipulates, add two layers of neutral-alkaline cloth then, machine-processed moulding.
(4) plate of moulding is advanced in the maintenance room that has 25 ℃～40 ℃ of infrared thermometers maintenance with railcar 12 hours.
Embodiment 2
With embodiment 1, difference is: step (2) is magnesium chloride 15kg, and water 15kg pours into and dissolves 12 hours in the container, adds blowing agent 0.5kg then, and modifier 0.5kg stirred 1 minute, added 25kg magnesia and 25kg silica flour again, and it is standby to stir.

Claims (5)

1, magnesite hot press composite board is characterized in that: with the magnesite modification material is Binder Materials, and middle alkali or the alkali-free glass fiber grid cloth that interweaves is reinforcing material, is that insulation material is composited with the centrifugally glass-wool plate; The 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.
2, magnesite hot press composite board according to claim 1 is characterized in that: 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%.
3, 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%.
4, magnesite hot press composite board according to claim 1 is characterized in that: thickness of slab 5mm～120mm.
5, magnesite hot press composite board according to claim 1 is characterized in that: its width is 1000mm～1500mm,, long is 2000mm～6000mm.
CN200910064622.XA 2009-04-13 2009-04-13 Magnesite hot press composite board Active CN101531075B (en)

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 true CN101531075A (en) 2009-09-16
CN101531075B CN101531075B (en) 2014-11-12

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Family Applications (1)

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CN200910064622.XA Active CN101531075B (en) 2009-04-13 2009-04-13 Magnesite hot press composite board

Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
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
CN102493567A (en) * 2011-12-30 2012-06-13 广东亿健绿色住宅材料工业有限公司 Production method for composite thermal insulation boards
CN102992688A (en) * 2012-09-29 2013-03-27 金华运酬科技有限公司 Magnesite modifying agent

Citations (1)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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 (1)

* Cited by examiner, † Cited by third party
Title
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》 *

Cited By (5)

* Cited by examiner, † Cited by third party
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
CN102493567A (en) * 2011-12-30 2012-06-13 广东亿健绿色住宅材料工业有限公司 Production method for composite thermal insulation boards
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
CN102992688A (en) * 2012-09-29 2013-03-27 金华运酬科技有限公司 Magnesite modifying agent
CN102992688B (en) * 2012-09-29 2014-12-24 金华运酬科技有限公司 Magnesite modifying agent

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