CN108383481A - A kind of magnesite composite and preparation method thereof - Google Patents
A kind of magnesite composite and preparation method thereof Download PDFInfo
- Publication number
- CN108383481A CN108383481A CN201810240482.6A CN201810240482A CN108383481A CN 108383481 A CN108383481 A CN 108383481A CN 201810240482 A CN201810240482 A CN 201810240482A CN 108383481 A CN108383481 A CN 108383481A
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- magnesite
- magnesite composite
- preparation
- modifying agent
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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
-
- 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
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of magnesite composites and preparation method thereof, and wherein magnesite composite includes the following component indicated with parts by weight：200 210 parts of light calcined magnesia；95 100 parts of magnesium chloride；5 10 parts of filler；58 parts of modifying agent；12 18 parts of glass fabric；140 150 parts of water；Filler includes that mass ratio is 2:3 alumina powder and polyacrylonitrile fibre；Modifying agent includes 1.5 parts of phosphatase 11,0.5 0.8 parts of aluminum sulfate, 0.5 0.8 parts of styrene-acrylic emulsion, 0.5 0.8 parts of adhesive for polyurethane, 0.5 0.8 parts of silane coupling agent, 12 parts of aluminum phosphate, 1 1.3 parts of triethanolamine.The above raw material has the characteristics that light weight, intensity are higher, fire protecting performance is preferable by being stirred obtained magnesite composite.
Description
Technical field
The present invention relates to architectural decoration Material Fields, and in particular to a kind of magnesite composite and preparation method thereof.
Background technology
In building decoration, in order to increase the authenticity of building decoration, the materials such as concrete are usually poured into a setting
Decoration module is made in the mold of shape, then decoration module is stitched together obtained decoration element.But use concreting system
The decoration module obtained is usually heavier, is inconvenient to carry during building decoration element and install.
In order to mitigate the weight of decoration module, and facilitate installation, generally use glass concrete replaces normal
Advise concrete.Although can mitigate the weight of decoration module to a certain extent using the above material, this material is prevented
Fiery performance is poor.
Generally use magnesite material improves the fire protecting performance of decoration module material therefor at present.The applying date is in August, 2012
25 days, a kind of magnesite slag aerated bricks and preparation method thereof are disclosed application No. is 201210304882.1 Chinese patent,
It includes mainly magnesite slag, flyash, kaolin, light calcium carbonate powder that its is raw materials used.The applying date is September in 2013 5, application number
Disclose a kind of method making magnesite product for 201310399624.0 Chinese patent, used in raw material mainly include oxygen
Change magnesium, magnesium chloride hexahydrate, fiber powder.The applying date is on June 30th, 2014, application No. is 201410304379.5 Chinese patents
Disclose a kind of magnesite acoustic tile, used in raw material mainly include magnesia unslacked, magnesium chloride solution, magnesium sulfate, reinforcing fibre.It adopts
The decoration module made from above technical scheme has preferable flameproof effect, but intensity is poor.
Invention content
The object of the present invention is to provide a kind of magnesite composites, and with light weight, intensity is higher, fire protecting performance is preferable
The characteristics of.
The present invention above-mentioned technical purpose technical scheme is that：A kind of magnesite composite, packet
Include the following component indicated with parts by weight：200-210 parts of light calcined magnesia；95-100 parts of magnesium chloride；5-10 parts of filler；It is modified
5-8 parts of agent；12-18 parts of glass fabric；140-150 parts of water；Filler includes that mass ratio is 2:3 alumina powder and polypropylene
Nitrile fiber；Modifying agent includes -1.5 parts of phosphatase 11,0.5-0.8 parts of aluminum sulfate, 0.5-0.8 parts of styrene-acrylic emulsion, adhesive for polyurethane
0.5-0.8 parts, 0.5-0.8 parts of silane coupling agent, 1-2 parts of aluminum phosphate, 1-1.3 parts of triethanolamine.
Using above technical scheme, light calcined magnesia, magnesium chloride and water are stirred generation gel, and glass is added in the feed
Glass fiber cloth improves the intensity that magnesite composite is made；Alumina powder is added in the feed and improves magnesite composite
Hardness, while improving the fire protecting performance of magnesite composite.Filler and modifying agent are added in the feed, it is multiple to further increase magnesite
Compactness, tensile strength and the fire protecting performance of condensation material.Glass fabric, polyacrylonitrile fibre and the cooperation of roll paper adhesive, carry
The mechanical strength of high magnesite composite.Modifying agent is added in raw material, reduces the halogen that returns occurred after magnesite composite solidification and shows
As, while the mixing uniformity of raw material can be improved.
Further, the grain size of light calcined magnesia is 70-90 mesh.
Using above technical scheme, light calcined magnesia under the grain size has a preferable dispersion effect, it is convenient and other
Raw material components are uniformly mixed.
Further, glass fabric uses alkali-free glass fiber cloth.
Alkali-free glass fiber cloth mixes more uniform with polyacrylonitrile fibre, light calcined magnesia and magnesium chloride, can substantially carry
The mechanical strength of high magnesite composite.
Further, the length of polyacrylonitrile fibre be 6-10mm, a diameter of 10-12 μm.
Polyacrylonitrile fibre is light, and intensity is higher, selects the polyacrylonitrile fibre of length and diameter in the range,
It mixes more uniform with the other components in raw material.
Further, silane coupling agent selection vinyltriethoxysilane, vinyltrimethoxysilane or ethylene
One kind in base three (beta-methoxy ethyoxyl) silane.
Another object of the present invention is to provide a kind of preparation methods of magnesite composite, with simple process, increase
The characteristics of strong material moisture and hardness.
The above-mentioned purpose of the present invention is achieved by the following technical programs：A kind of preparation method of magnesite composite,
Include the following steps：
The preparation of S1, modifying agent：Phosphoric acid, aluminum sulfate, aluminum phosphate and triethanolamine are stirred obtained first mixed liquor, phenylpropyl alcohol breast
Liquid, adhesive for polyurethane, silane coupling agent are stirred obtained second mixed liquor；First mixed liquor and the stirring of the second mixed liquor are mixed
It closes and modifying agent is made；
S2, light calcined magnesia, magnesium chloride, modifying agent, glass fabric and water, which are stirred, is made just mixed liquid；
The preparation of S3, magnesite composite：Alumina powder is added in just mixed liquid with the speed of 15-20g/min and is stirred 20-
30min adds polyacrylonitrile fibre and is stirred obtained magnesite composite after standing 10-15min.
Using above technical scheme, previously prepared modifying agent, after modifying agent stirs evenly, with light calcined magnesia, chlorination
Magnesium, modifying agent, the mixing of glass fabric and water are more uniform.In addition, alumina powder is slowly added in just mixed liquid, improve
The dispersion stabilization of alumina powder stands a period of time so that the first mixed liquid that alumina powder is added becomes viscous, and adds again later
Enter polyacrylonitrile fibre, improve dispersing uniformity of the polyacrylonitrile fibre in magnesite composite, so that final be made
Magnesite composite have preferable mechanical strength and fire protecting performance.
Further, mixing speed is 80-100r/min in step S1.
Under the mixing speed, modifying agent stirring is more uniform, and does not allow to be also easy to produce bubble.
Further, mixing speed is 150-200r/min in step S2.
Using above technical scheme, the mixing speed of solution is improved in step S2 so that just mixed liquid has centainly sticky
Degree, it is convenient subsequently to be mixed with alumina powder and polyacrylonitrile fibre.
In conclusion the invention has the advantages that：
1, magnesite composite produced by the present invention has preferable mechanical strength, light calcined magnesia, magnesium chloride and water stirring mixed
Conjunction forms gel, and polyacrylonitrile fibre, glass fabric, aluminum phosphate and other raw material components are added in the feed and coordinate, improve
The mechanical strength of magnesite composite is made；
2, magnesite composite produced by the present invention has preferable heat-proof quality and fire protecting performance, uses light calcined magnesia, chlorine
Change magnesium and form three-dimensional net structure as primary raw material, add alumina powder, phosphoric acid, aluminum sulfate and aluminum phosphate, improves water chestnut
The heat insulation of magnesium base composite material, while the fire protecting performance of magnesite composite can also be enhanced；
3, magnesite composite produced by the present invention has preferable freezing and thawing performance, in addition, alumina powder is as phase transformation material
Expect it is evenly dispersed in the feed, alumina powder and aluminum sulfate, aluminum phosphate cooperation improve the weatherability of magnesite composite, have
There is preferable freezing and thawing performance.
Specific implementation mode
Invention is further described in detail with reference to embodiments.
Embodiment one：A kind of magnesite composite, is made as follows：
The preparation of S1, modifying agent：1kg phosphoric acid (mass percent 85%), tri- second of 0.5kg aluminum sulfate, 1kg aluminum phosphates and 1kg
Hydramine is stirred obtained first mixed liquor, 0.5kg styrene-acrylic emulsions, 0.5kg adhesive for polyurethane and 0.5kg silane coupling agents
(the present embodiment selection vinyltriethoxysilane) is stirred obtained second mixed liquor；First mixed liquor and the second mixed liquor
It is stirred 25min under conditions of 80r/min, modifying agent is made；
S2,200kg light calcined magnesia (grain size be 70 mesh), 95kg magnesium chlorides, modifying agent, 12kg glass fibres made from step S1
Cloth (the present embodiment selection alkali-free glass fiber cloth) and 140kg water are stirred with the speed of 150r/min is made just mixed liquid；
The preparation of S3, magnesite composite：Filler is added in first mixed liquid, filler includes 2kg alumina powders (γ phases, grain size
For 200 mesh) and 3kg polyacrylonitrile fibres (the present embodiment selects the length of polyacrylonitrile fibre for 6mm, a diameter of 10 μm), tool
Body adding method is as follows：2kg alumina powders are added in just mixed liquid with the speed of 15g/min and are stirred 20min, are stood
After 10min, adds 3kg polyacrylonitrile fibres and be stirred obtained magnesite composite.
Remaining embodiment and embodiment one are difference lies in the proportioning of component and process conditions are different, the component of each embodiment
Proportioning is as shown in table 1, and the process conditions of each embodiment are as shown in table 2.
The component proportion of 1 each embodiment of table
The process conditions of 2 each embodiment of table
The component proportion provided according to the above various embodiments prepares magnesite composite, and magnesite composite is walked according to above-mentioned technique
Suddenly the curing molding in the mold of definite shape, tests the performance of magnesite composite after molding, specifically such as 3 institute of table
Show.
The performance test results of magnesite composite made from 3 each embodiment of table
Uniform using magnesite composite product made from above method, surface flawless, compression strength may be up to 47MPa,
Beaming resistance limit intensity can reach 26MPa, and ultimate tensile intensity can reach 15.5MPa, and impact strength reaches as high as 24kJ/m2,
Both girder construction load-bearing can be also used as the extraneous adornment of building.Product have preferable freezing and thawing performance and
Surface halide accumulation resistance, the stripping quantity of chlorion is down to 0.11%, in addition, magnesite composite produced by the present invention is with preferable heat-insulated
Performance and flameproof effect can reach A1 grades of fire-protection standards, can be used for the fields such as heavy construction, such as museum, amusement park, market
Institute.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Claims (8)
1. a kind of magnesite composite, it is characterised in that：Including the component indicated below with parts by weight：Light calcined magnesia 200-
210 parts；95-100 parts of magnesium chloride；5-10 parts of filler；5-8 parts of modifying agent；12-18 parts of glass fabric；140-150 parts of water；It fills out
Material includes that mass ratio is 2:3 alumina powder and polyacrylonitrile fibre；Modifying agent includes -1.5 parts of phosphatase 11, aluminum sulfate 0.5-
0.8 part, 0.5-0.8 parts of styrene-acrylic emulsion, 0.5-0.8 parts of adhesive for polyurethane, 0.5-0.8 parts of silane coupling agent, aluminum phosphate 1-2
Part, 1-1.3 parts of triethanolamine.
2. magnesite composite according to claim 1, it is characterised in that：The grain size of light calcined magnesia is 70-90 mesh.
3. magnesite composite according to claim 1, it is characterised in that：Glass fabric uses alkali-free glass fibre
Cloth.
4. magnesite composite according to claim 1, it is characterised in that：The length of polyacrylonitrile fibre is 6-10mm,
A diameter of 10-12 μm.
5. magnesite composite according to claim 1, it is characterised in that：Silane coupling agent selects vinyl triethoxyl
Silane, vinyltrimethoxysilane or vinyl three（Beta-methoxy ethyoxyl）One kind in silane.
6. according to the preparation method of claim 1-5 any one of them magnesite composites, it is characterised in that：Including walking as follows
Suddenly：
The preparation of S1, modifying agent：Phosphoric acid, aluminum sulfate, aluminum phosphate and triethanolamine are stirred obtained first mixed liquor, phenylpropyl alcohol breast
Liquid, adhesive for polyurethane, silane coupling agent are stirred obtained second mixed liquor；First mixed liquor and the stirring of the second mixed liquor are mixed
It closes and modifying agent is made；
S2, light calcined magnesia, magnesium chloride, modifying agent, glass fabric and water, which are stirred, is made just mixed liquid；
The preparation of S3, magnesite composite：Alumina powder is added in just mixed liquid with the speed of 15-20g/min and is stirred 20-
30min adds polyacrylonitrile fibre and is stirred obtained magnesite composite after standing 10-15min.
7. the preparation method of magnesite composite according to claim 6, it is characterised in that：Mixing speed is in step S1
80-100r/min。
8. the preparation method of magnesite composite according to claim 6, it is characterised in that：Mixing speed is in step S2
150-200r/min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810240482.6A CN108383481B (en) | 2018-03-22 | 2018-03-22 | Magnesite composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810240482.6A CN108383481B (en) | 2018-03-22 | 2018-03-22 | Magnesite composite material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108383481A true CN108383481A (en) | 2018-08-10 |
| CN108383481B CN108383481B (en) | 2020-11-03 |
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| CN201810240482.6A Active CN108383481B (en) | 2018-03-22 | 2018-03-22 | Magnesite composite material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114075066A (en) * | 2021-05-08 | 2022-02-22 | 新狮展(上海)展示服务有限公司 | Magnesium oxychloride reinforced composite material and preparation method thereof |
| CN115057685A (en) * | 2022-06-02 | 2022-09-16 | 福建鸿钧家具用品有限公司 | Light terrazzo stove made of composite magnesite material |
| CN116119975A (en) * | 2023-01-12 | 2023-05-16 | 王再根 | Modifier, magnesium oxychloride composite material, and preparation method and application thereof |
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| CN103043961A (en) * | 2011-10-11 | 2013-04-17 | 刘丰 | Glass fiber and magnesium cement building board |
| CN104891941A (en) * | 2015-05-21 | 2015-09-09 | 安徽鑫润新型材料有限公司 | Multipurpose glass fibre and magnesium eco-plate and preparation method thereof |
| CN104891947A (en) * | 2015-05-21 | 2015-09-09 | 安徽鑫润新型材料有限公司 | Additional-modifier-based magnesium oxide board capable of enhancing strength and preparation method thereof |
| CN105503140A (en) * | 2015-12-22 | 2016-04-20 | 合肥仲农生物科技有限公司 | Water-resistant composite |
| CN107129232A (en) * | 2017-06-13 | 2017-09-05 | 安徽筑园景新型建材科技有限公司 | A kind of utilization blast furnace slag prepares the method laid bricks |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043961A (en) * | 2011-10-11 | 2013-04-17 | 刘丰 | Glass fiber and magnesium cement building board |
| CN104891941A (en) * | 2015-05-21 | 2015-09-09 | 安徽鑫润新型材料有限公司 | Multipurpose glass fibre and magnesium eco-plate and preparation method thereof |
| CN104891947A (en) * | 2015-05-21 | 2015-09-09 | 安徽鑫润新型材料有限公司 | Additional-modifier-based magnesium oxide board capable of enhancing strength and preparation method thereof |
| CN105503140A (en) * | 2015-12-22 | 2016-04-20 | 合肥仲农生物科技有限公司 | Water-resistant composite |
| CN107129232A (en) * | 2017-06-13 | 2017-09-05 | 安徽筑园景新型建材科技有限公司 | A kind of utilization blast furnace slag prepares the method laid bricks |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114075066A (en) * | 2021-05-08 | 2022-02-22 | 新狮展(上海)展示服务有限公司 | Magnesium oxychloride reinforced composite material and preparation method thereof |
| CN115057685A (en) * | 2022-06-02 | 2022-09-16 | 福建鸿钧家具用品有限公司 | Light terrazzo stove made of composite magnesite material |
| CN116119975A (en) * | 2023-01-12 | 2023-05-16 | 王再根 | Modifier, magnesium oxychloride composite material, and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN108383481B (en) | 2020-11-03 |
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