CN102992688B - Magnesite modifying agent - Google Patents
Magnesite modifying agent Download PDFInfo
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- CN102992688B CN102992688B CN201210390263.9A CN201210390263A CN102992688B CN 102992688 B CN102992688 B CN 102992688B CN 201210390263 A CN201210390263 A CN 201210390263A CN 102992688 B CN102992688 B CN 102992688B
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Abstract
The invention provides a magnesite modifying agent, and belongs to the technical field of a magnesite cementing material, aiming at solving the problem that the existing magnesite cementing material product is serious in moisture absorption and halogenation. The magnesite modifying agent comprises the components based on parts by weight: 2-4.5 parts of barium silicate, 1.5-3.5 parts of sodium silicate, 10-25 parts of high polymer waterproof rubber powder, 250-400 parts of building plaster, 110-140 parts of bentonite, 60-100 parts of mica powder, 2-3.8 parts of lithium silicate, 2-8 parts of polyvinyl alcohol, 2.5-8 parts of a flocculating agent, 150-300 parts of talcum powder and 200-300 parts of volcanic ash. Compared with the prior art, the magnesite modifying agent solves the problems that the existing magnesite composite material product is easily deformed and easily gets damp, and improves the product strength, thus improving the product quality.
Description
Technical field
The invention belongs to magnesite binding material technical field, relate to a kind of magnesite modification agent.
Background technology
Magnesite binding material is also known as magnesia cement, it is a kind of air hardening cementitious materials, when manufacturing a product with this material, have with it and do not need to want moist maintenance, gain in strength fast, anti-folding, ultimate compression strength are high, weakly alkaline, low-corrosiveness, elasticity are high, good toughness, lightweight, to organic and inorganic materials or fiber, there is the features such as good cohesiveness, be widely used in the fields such as building, decoration, urban construction, agricultural.
But this material product can have surface easily damp suction surface halide accumulation phenomenon, after magnesia cement fully solidifies, still postcritical free magnesium chloride or excessive alkali metal impurity ion is remained in magnesite product inside, in the middle of the environment of high humidity high temperature, the capillary channel of water vapor fast strikethrough goods inside, by the sodium do not reacted, potassium ions migrate out, continuous gathering, due to the moisture absorption that these salts substances are strong, water vapour in continuous absorbed air, then cause product to condense sweating and with the taste of bitterness, make product deformation and surperficial peeling paint, seriously have impact on the use properties of goods.
For this reason, be generally all solve above-mentioned disadvantage by the method for additional properties-correcting agent in industry, but existing properties-correcting agent effect not desirable especially.
Summary of the invention
The object of the invention is for the problems referred to above existing for existing magnesite composite goods, and propose a kind of water resisting property that can improve magnesite composite goods, and the admixture that its surperficial anti-moisture absorption returns halogen ability can be improved for a long time in wet environment.
Object of the present invention realizes by following technical proposal: a kind of magnesite modification agent, is characterized in that, this properties-correcting agent is made up of (parts by weight) following composition and proportioning:
Barium silicate 2 ~ 4.5;
Water glass 1.5 ~ 3.5;
Polymer waterproof adhesive powder 10 ~ 25;
Plaster of Paris 250 ~ 400;
Bentonite 110 ~ 140;
Mica powder 60 ~ 100;
Lithium silicate 2 ~ 3.8;
Polyvinyl alcohol 2 ~ 8;
Flocculation agent 2.5 ~ 8;
Talcum powder 150 ~ 300;
Volcanic ash 200 ~ 300.
Above-mentioned raw materials is carried out mix and blend by after the metering of its ratio of weight and number, is magnesite modification agent of the present invention.
Compared with prior art, the agent of this magnesite modification solves the distortion and problem of getting damp that existing magnesite composite goods easily occur, and improves product strength, thus improves quality product.
Embodiment
Be below specific embodiments of the invention, technical scheme of the present invention is further described, but the present invention is not limited to these embodiments.
Embodiment 1
In the present embodiment, the agent of this magnesite modification is made up of following composition:
The effect of composition weight number
Barium silicate 3
Water glass 2 blocks capillary porosity duct, the degree of compactness improving material, intensity, impermeability and water tolerance
Polymer waterproof adhesive powder 16
The CL of plaster of Paris 310 withhold excessive
-
Bentonite 130 improves cohesive force
Mica powder 75
Lithium silicate 3 solution has from dryness, can generate a kind of water-fast dry film
Polyvinyl alcohol 5 aqueous solution has good cohesiveness and film-forming properties
Flocculation agent 6
Talcum powder 200
Volcanic ash 250
Each composition is uniformly mixed after weighing and makes pulvis above.
Adding in magnesia cement by preparing the improving agent obtained, after magnesia cement solidification, forming one deck hydrophobic membrane at the internal surface of goods with inner capillary-size pore and empty inwall, preventing the intrusion of moisture, reducing water to the erosion of goods.Magnesite modification agent simultaneously contains the surface active ingredient of a great deal of, can magnesium oxide be made at short notice fully to contact with magnesium chloride, react, unnecessary magnesium chloride shielding is got up, it is made to lose the chance absorbing moisture in air dielectric, compensate under large turnout, slip churning time is shorter and the defect easily causing mixing of materials insufficient.Eliminate in urethane cure process, the product defect produced because of excess water evaporation significantly increases the early stage of goods and longterm strength, increases surface and inner degree of compactness, eliminates and return halogen and whiting, strengthen the hydrophobic nature of product, and and CO
2in conjunction with activity, reduce and generate brucite, increase magnesiumcarbonate and generate, improve stability and intensity.
Embodiment 2
In the present embodiment, the agent of this magnesite modification is made up of following composition:
The effect of composition weight number
Barium silicate 2
Water glass 3.5 blocks capillary porosity duct, the degree of compactness improving material, intensity, impermeability and water tolerance
Polymer waterproof adhesive powder 20
The CL of plaster of Paris 311.5 withhold excessive
-
Bentonite 140 improves cohesive force
Mica powder 60
Lithium silicate 2.5 solution has from dryness, can generate a kind of water-fast dry film
Polyvinyl alcohol 8 aqueous solution has good cohesiveness and film-forming properties
Flocculation agent 2.5
Talcum powder 150
Volcanic ash 300
Each composition is uniformly mixed after weighing and makes pulvis above.
Adding in magnesia cement by preparing the improving agent obtained, after magnesia cement solidification, forming one deck hydrophobic membrane at the internal surface of goods with inner capillary-size pore and empty inwall, preventing the intrusion of moisture, reducing water to the erosion of goods.Magnesite modification agent simultaneously contains the surface active ingredient of a great deal of, can magnesium oxide be made at short notice fully to contact with magnesium chloride, react, unnecessary magnesium chloride shielding is got up, it is made to lose the chance absorbing moisture in air dielectric, compensate under large turnout, slip churning time is shorter and the defect easily causing mixing of materials insufficient.Eliminate in urethane cure process, the product defect produced because of excess water evaporation significantly increases the early stage of goods and longterm strength, increases surface and inner degree of compactness, eliminates and return halogen and whiting, strengthen the hydrophobic nature of product, and and CO
2in conjunction with activity, reduce and generate brucite, increase magnesiumcarbonate and generate, improve stability and intensity.
Embodiment 3
In the present embodiment, the agent of this magnesite modification is made up of following composition:
The effect of composition weight number
Barium silicate 4.5
Water glass 1.5 blocks capillary porosity duct, the degree of compactness improving material, intensity, impermeability and water tolerance
Polymer waterproof adhesive powder 20
The CL of plaster of Paris 250 withhold excessive
-
Bentonite 110 improves cohesive force
Mica powder 100
Lithium silicate 2 solution has from dryness, can generate a kind of water-fast dry film
Polyvinyl alcohol 2 aqueous solution has good cohesiveness and film-forming properties
Flocculation agent 8
Talcum powder 262
Volcanic ash 200
Each composition is uniformly mixed after weighing and makes pulvis above.
Adding in magnesia cement by preparing the improving agent obtained, after magnesia cement solidification, forming one deck hydrophobic membrane at the internal surface of goods with inner capillary-size pore and empty inwall, preventing the intrusion of moisture, reducing water to the erosion of goods.Magnesite modification agent simultaneously contains the surface active ingredient of a great deal of, can magnesium oxide be made at short notice fully to contact with magnesium chloride, react, unnecessary magnesium chloride shielding is got up, it is made to lose the chance absorbing moisture in air dielectric, compensate under large turnout, slip churning time is shorter and the defect easily causing mixing of materials insufficient.Eliminate in urethane cure process, the product defect produced because of excess water evaporation significantly increases the early stage of goods and longterm strength, increases surface and inner degree of compactness, eliminates and return halogen and whiting, strengthen the hydrophobic nature of product, and and CO
2in conjunction with activity, reduce and generate brucite, increase magnesiumcarbonate and generate, improve stability and intensity.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (1)
1. a magnesite modification agent, is characterized in that, this properties-correcting agent is made up of (parts by weight) following composition and proportioning:
Barium silicate 2 ~ 4.5;
Water glass 1.5 ~ 3.5;
Polymer waterproof adhesive powder 10 ~ 25;
Plaster of Paris 250 ~ 400;
Bentonite 110 ~ 140;
Mica powder 60 ~ 100;
Lithium silicate 2 ~ 3.8;
Polyvinyl alcohol 2 ~ 8;
Flocculation agent 2.5 ~ 8;
Talcum powder 150 ~ 300;
Volcanic ash 200 ~ 300.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210390263.9A CN102992688B (en) | 2012-09-29 | 2012-09-29 | Magnesite modifying agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210390263.9A CN102992688B (en) | 2012-09-29 | 2012-09-29 | Magnesite modifying agent |
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| Publication Number | Publication Date |
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| CN102992688A CN102992688A (en) | 2013-03-27 |
| CN102992688B true CN102992688B (en) | 2014-12-24 |
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| CN201210390263.9A Active CN102992688B (en) | 2012-09-29 | 2012-09-29 | Magnesite modifying agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3370962A4 (en) * | 2015-11-04 | 2019-06-12 | Imerys Filtration Minerals, Inc. | Compositions and methods for additive manufacturing |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253885A (en) * | 2013-04-11 | 2013-08-21 | 万年县精信门业有限公司 | Modifier and inorganic low carbon environment-friendly sheet material and manufacturing process thereof |
| CN106866104A (en) * | 2017-02-27 | 2017-06-20 | 江西省建筑材料工业科学研究设计院 | A kind of magnesite water resistant modifying agent |
| CN112125624A (en) * | 2020-09-05 | 2020-12-25 | 李泓漫 | Fiber phosphorus tailings building material powder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352867A (en) * | 2008-08-28 | 2009-01-28 | 李常稳 | Method for preparing high-artificial wooden wares |
| CN101531075A (en) * | 2009-04-13 | 2009-09-16 | 沈金良 | Magnesite hot press composite board |
| CN101654002A (en) * | 2009-09-10 | 2010-02-24 | 沈金良 | Board specialized for ventilation duct of air conditioner |
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2012
- 2012-09-29 CN CN201210390263.9A patent/CN102992688B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352867A (en) * | 2008-08-28 | 2009-01-28 | 李常稳 | Method for preparing high-artificial wooden wares |
| CN101531075A (en) * | 2009-04-13 | 2009-09-16 | 沈金良 | Magnesite hot press composite board |
| CN101654002A (en) * | 2009-09-10 | 2010-02-24 | 沈金良 | Board specialized for ventilation duct of air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3370962A4 (en) * | 2015-11-04 | 2019-06-12 | Imerys Filtration Minerals, Inc. | Compositions and methods for additive manufacturing |
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| CN102992688A (en) | 2013-03-27 |
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Effective date of registration: 20191213 Address after: 314400 No.11, Weisan Road, Nongfa District, Chang'an Town, Haining City, Jiaxing City, Zhejiang Province Patentee after: Haining hi tech Zone Science and Innovation Center Co., Ltd Address before: 104, Room 301, information building, 321000 Xinhua Street, Zhejiang, Jinhua Patentee before: Jinhua Yunchou Technology Co.,Ltd. |