CN103359968B - Bicomponent magnesite material composite modifier and preparation method thereof - Google Patents
Bicomponent magnesite material composite modifier and preparation method thereof Download PDFInfo
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- CN103359968B CN103359968B CN201310261817.XA CN201310261817A CN103359968B CN 103359968 B CN103359968 B CN 103359968B CN 201310261817 A CN201310261817 A CN 201310261817A CN 103359968 B CN103359968 B CN 103359968B
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- bicomponent
- magnesite material
- component
- composite modifier
- material composite
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- 239000001095 magnesium carbonate Substances 0.000 title claims abstract description 40
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 title claims abstract description 40
- 229910000021 magnesium carbonate Inorganic materials 0.000 title claims abstract description 40
- 235000014380 magnesium carbonate Nutrition 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 title claims abstract description 40
- 239000003607 modifier Substances 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title abstract description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 239000011734 sodium Substances 0.000 claims abstract description 15
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 15
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 13
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004816 latex Substances 0.000 claims abstract description 11
- 229920000126 latex Polymers 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 10
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 10
- 239000010881 fly ash Substances 0.000 claims abstract description 9
- 239000004113 Sepiolite Substances 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 7
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 7
- 239000002002 slurry Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 10
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 10
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 10
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 10
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims description 2
- 239000012267 brine Substances 0.000 claims description 2
- 239000010883 coal ash Substances 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- HXHCOXPZCUFAJI-UHFFFAOYSA-N prop-2-enoic acid;styrene Chemical group OC(=O)C=C.C=CC1=CC=CC=C1 HXHCOXPZCUFAJI-UHFFFAOYSA-N 0.000 claims description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052736 halogen Inorganic materials 0.000 abstract description 4
- 150000002367 halogens Chemical class 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000004115 Sodium Silicate Substances 0.000 abstract 1
- -1 sodium fluorosilicate Chemical compound 0.000 abstract 1
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 16
- 230000002742 anti-folding effect Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 241001131796 Botaurus stellaris Species 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 102000004160 Phosphoric Monoester Hydrolases Human genes 0.000 description 1
- 108090000608 Phosphoric Monoester Hydrolases Proteins 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
Abstract
The invention relates to a bicomponent magnesite material composite modifier and a preparation method thereof. The bicomponent magnesite material composite modifier comprises the following raw material components in percentage by weight: a component A including 30-50% of phosphoric acid and 50-70% of sodium silicate, and a component B including 20-25% of latex powder, 20-30% of sepiolite fibers, 30-35% of fly ash, 3-5% of sodium fluorosilicate, 5-10% of sodium hexametahposphate and 10-15% of a water retention agent. The bicomponent composite modifier comprising the components A and B special for a magnesite material is prepared by weighing and preparing the materials in proportions. When the bicomponent magnesite material composite modifier is used, the component B and magnesia are put into a stirring machine together and are uniformly stirred, then the prepared halogen liquid is added into the stirring machine and stirred, and when the slurry is uniformly stirred, the component A is added, and the mixture is stirred for 3-5 minutes. The magnesite material modified by the bicomponent modifier has good water resistance, the early softening coefficient of the magnesite material is more than or equal to 98%, and the long-term softening coefficient of the magnesite material can reach 93-95%. The bicomponent modifier can improve the water resistance of a magnesite material product and can improve the surface moisture absorption resistance and impermeability of the product in a humid environment.
Description
Technical field
The present invention relates to a kind of Bicomponent magnesite material composite modifier and preparation method thereof.
Background technology
China from the beginning of the fifties with regard to investigation and application is carried out to magnesite material, but due to its poor water resistance, return the shortcomings such as halogen frosting and product strength declined, easy warpage sex change, thus the application limiting magnesite material.Along with developing rapidly of China's economy, building materials rush of demand, magnesite material came into one's own once again in recent years.Magnesite material is widely used in building material industry, matter of utmost importance improves its drawback existed.
The current method improving magnesite material drawback has multiple: control the ratio of raw material quality, adjustment magnesium oxide and magnesium chloride, adopt rational technique, add suitable properties-correcting agent.It is the simplest that bibliographical information adds suitable properties-correcting agent, the most effective ameliorative way.
summary of the invention:
An object of the present invention is to provide a kind of Bicomponent magnesite material composite modifier.Apply this properties-correcting agent and modification is carried out to magnesite product, effectively can improve the water repelling property of goods and its surperficial anti-moisture absorption can be improved in a humid environment return halogen ability.
Two of object of the present invention is the preparation method providing this properties-correcting agent.
Three of object of the present invention is the using method providing this properties-correcting agent.
A kind of Bicomponent magnesite material composite modifier, is made up of A, B two-pack, under the composition that it is characterized in that described component A and weight percentage:
Component A: phosphoric acid 30-50%; Water glass 50-70%;
The composition of described B component and mass percentage are:
Latex powder 20-25%; Sepiolite fibre 20-30%;
Flyash 30-35%; Sodium Silicofluoride 3-5%;
Sodium hexametaphosphate 99 5-10%; Water-holding agent 10-15%;
The weight percentage sum taste 100% of each composition above.
Above-mentioned phosphoric acid is PHOSPHORIC ACID TECH.GRADE, wherein phosphorus acid content >=85%.
Above-mentioned water glass is the ordinary liquid water glass of 50 ° of B é, wherein SiO
2>=29%, Na
2o>=12%.
Above-mentioned flyash is second class powered coal ash.
Above-mentioned Sodium Silicofluoride is analytical pure Sodium Silicofluoride, wherein Sodium Silicofluoride content >=98.5%.
Above-mentioned Sodium hexametaphosphate 99 is analytical pure Sodium hexametaphosphate 99.
Above-mentioned latex powder is vinylbenzene-vinylformic acid, any one in acrylate, vinyl acetate between to for plastic-ethene redispersable latex powder, and its fineness is 100 orders.
Above-mentioned water-holding agent is any one or two kinds of in Natvosol, hydroxyethylmethyl-cellulose, Vltra tears.
A method for above-mentioned Bicomponent magnesite material composite modifier, makes component A after it is characterized in that phosphoric acid, water glass to stir; Latex powder, sepiolite fibre, flyash, Sodium Silicofluoride, Sodium hexametaphosphate 99, water-holding agent are stirred, makes B component, be Bicomponent magnesite material composite modifier.
A kind of using method of above-mentioned Bicomponent magnesite material composite modifier, it is characterized in that this using method is: B component and magnesium oxide are stirred, then add previously prepared good saltwater brine to stir, treat that slurry agitation is even, then add component A continuation stirring 3-5min; Described component A and the consumption of B component are 5% of magnesium oxide weight.
The advantage of bicomponent magnesite material specific complex properties-correcting agent of the present invention is:
1, this bicomponent magnesite material specific complex preparation method for modifier is simple, easy to use;
2, this bicomponent magnesite material specific complex properties-correcting agent can improve the water-resistant capacity of modified product greatly, and early stage coefficient of softening >=98%, long-term coefficient of softening can reach 93%-95%.Effectively can also improve goods anti-moisture absorption in a humid environment and return halogen ability while raising water tolerance.
embodiment:
After now specific embodiments of the invention being described in.
Embodiment 1
Weigh component A, the B component of preparation magnesite material specific complex properties-correcting agent by regulation proportioning, each raw material dosage is as follows:
Component A: phosphatase 11 7.5g; Water glass 32.5g;
B component: latex powder 10g; Sepiolite fibre 12.5g;
Flyash 15g; Sodium Silicofluoride 2g;
Sodium hexametaphosphate 99 3g; Water-holding agent 7.5g.
Through stir magnesite material specific complex modifier A, B component.
Embodiment is for 1000g magnesium oxide.
Concrete operation step is as follows: 1000g magnesium oxide and 50g B component are together dropped into stirrer is dry stirs 3min; Ready bittern (27 ° of B é) 800g is added stirrer and stirs; Then add 50gA component to continue to stir 3-5min.The slurry be stirred is poured in 40mm × 40mm × 160mm tri-joint-trial film, makees four groups of test specimens altogether, hour demoulding after maintenance 24 under normal curing condition, in curing room (20 ± 2) DEG C, and maintenance 28d under relative humidity 60% condition.First group of test specimen detects the anti-folding of 28d, ultimate compression strength; Second group of test specimen curing in water 30d detects anti-folding, ultimate compression strength, calculates coefficient of softening; 3rd group of test specimen curing in water 90d detects anti-folding, ultimate compression strength, calculates coefficient of softening; 4th group of test specimen puts into temperature for (35 ± 5) DEG C, and maintenance 48h in the environment of relative humidity (88 ± 5) %, the interval between test specimen is not less than 20mm.Detect by an unaided eye and try the changing conditions of surface.
Four groups of test specimen test results are as table 1:
。
Embodiment 2
Weigh component A, the B component of preparation magnesite material specific complex properties-correcting agent by regulation proportioning, each raw material dosage is as follows:
Component A: phosphoric acid 22.5g; Water glass 27.5g;
B component: latex powder 12.5g; Sepiolite fibre 10g;
Flyash 17.5g; Sodium Silicofluoride 2.5g;
Sodium hexametaphosphate 99 2.5g; Water-holding agent 5g.
Through stir magnesite material specific complex modifier A, B component.
Embodiment is for 1000g magnesium oxide.
Concrete operation step is as follows: 1000g magnesium oxide and 50g B component are together dropped into stirrer is dry stirs 3min; Ready bittern (27 ° of B é) 800g is added stirrer and stirs; Then add 50gA component to continue to stir 3-5min.The slurry be stirred is poured in 40mm × 40mm × 160mm tri-joint-trial film, makees four groups of test specimens altogether, hour demoulding after maintenance 24 under normal curing condition, in curing room (20 ± 2) DEG C, and maintenance 28d under relative humidity 60% condition.First group of test specimen detects the anti-folding of 28d, ultimate compression strength; Second group of test specimen curing in water 30d detects anti-folding, ultimate compression strength, calculates coefficient of softening; 3rd group of test specimen curing in water 90d detects anti-folding, ultimate compression strength, calculates coefficient of softening; 4th group of test specimen puts into temperature for (35 ± 5) DEG C, and maintenance 48h in the environment of relative humidity (88 ± 5) %, the interval between test specimen is not less than 20mm.Detect by an unaided eye and try the changing conditions of surface.
Four groups of test specimen test results are as table 2:
。
Claims (10)
1. a Bicomponent magnesite material composite modifier, is made up of A, B two-pack, it is characterized in that the composition of described component A and weight percentage as follows:
Component A: phosphoric acid 30-50%; Water glass 50-70%;
The composition of described B component and mass percentage are:
Latex powder 20-25%; Sepiolite fibre 20-30%;
Flyash 30-35%; Sodium Silicofluoride 3-5%;
Sodium hexametaphosphate 99 5-10%; Water-holding agent 10-15%;
The weight percentage sum of each composition is 100% above.
2. Bicomponent magnesite material composite modifier according to claim 1, is characterized in that described phosphoric acid is PHOSPHORIC ACID TECH.GRADE, wherein phosphorus acid content >=85%.
3. Bicomponent magnesite material composite modifier according to claim 1, is characterized in that described water glass is the ordinary liquid water glass of 50 ° of B é, wherein SiO
2>=29%, Na
2o>=12%.
4. Bicomponent magnesite material composite modifier according to claim 1, is characterized in that described flyash is second class powered coal ash.
5. Bicomponent magnesite material composite modifier according to claim 1, is characterized in that described Sodium Silicofluoride is analytical pure Sodium Silicofluoride, wherein Sodium Silicofluoride content >=98.5%.
6. Bicomponent magnesite material composite modifier according to claim 1, is characterized in that described Sodium hexametaphosphate 99 is analytical pure Sodium hexametaphosphate 99.
7. Bicomponent magnesite material composite modifier according to claim 1, is characterized in that described latex powder is vinylbenzene-vinylformic acid, any one in acrylate, vinyl acetate between to for plastic-ethene redispersable latex powder, and its fineness is 100 orders.
8. Bicomponent magnesite material composite modifier according to claim 1, is characterized in that described water-holding agent is any one or two kinds of in Natvosol, hydroxyethylmethyl-cellulose, Vltra tears.
9. prepare a method for the Bicomponent magnesite material composite modifier according to any one of claims 1 ~ 8, after it is characterized in that phosphoric acid, water glass to stir, make component A; Latex powder, sepiolite fibre, flyash, Sodium Silicofluoride, Sodium hexametaphosphate 99, water-holding agent are stirred, makes B component, be Bicomponent magnesite material composite modifier.
10. the using method of the Bicomponent magnesite material composite modifier according to any one of claims 1 ~ 8, it is characterized in that this using method is: B component and magnesium oxide are stirred, then add previously prepared good saltwater brine to stir, treat that slurry agitation is even, then add component A continuation stirring 3-5min; Described component A and the consumption of B component are 5% of magnesium oxide weight.
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| CN201310261817.XA CN103359968B (en) | 2013-06-27 | 2013-06-27 | Bicomponent magnesite material composite modifier and preparation method thereof |
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| CN201310261817.XA CN103359968B (en) | 2013-06-27 | 2013-06-27 | Bicomponent magnesite material composite modifier and preparation method thereof |
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| CN103359968B true CN103359968B (en) | 2015-02-11 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565193B (en) * | 2016-08-31 | 2019-05-07 | 武汉长江科创科技发展有限公司 | A kind of phosphate grouting material and preparation method 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 |
| CN110510986B (en) * | 2019-09-18 | 2021-08-06 | 大连理工大学 | Modified paste filling material based on magnesium oxychloride gelling system and preparation method thereof |
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| CN101429801B (en) * | 2008-08-27 | 2011-04-06 | 辽宁唐人神曙光农牧集团有限公司科技研发中心 | Composite building board and manufacturing method thereof |
| CN102424540B (en) * | 2011-08-11 | 2013-01-09 | 南昌大学 | Preparation method for magnesite material water resistance modifier, and use method thereof |
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Effective date of registration: 20180816 Address after: 201804 J227 8, No. 1112, hang Gui Road, Anting Town, Jiading District, Shanghai. Patentee after: SHANGHAI FODEV NEW MATERIAL TECHNOLOGY CO.,LTD. Address before: 201804 Xie Chun Road, Jiading District, Shanghai 1000 Patentee before: Shanghai Yupei Special Building Material Co.,Ltd. |
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Address after: Building 3, No. 75 Hengle Road, Waigang Town, Jiading District, Shanghai, June 2018 Patentee after: Shanghai fupei New Material Technology Co.,Ltd. Address before: 201804 J227 8, No. 1112, hang Gui Road, Anting Town, Jiading District, Shanghai. Patentee before: SHANGHAI FODEV NEW MATERIAL TECHNOLOGY CO.,LTD. |
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