CN1721356A - Method for preparing mineral bonding materials and composite materials thereof from phosphoric acid and aluminium-silicon materials - Google Patents
Method for preparing mineral bonding materials and composite materials thereof from phosphoric acid and aluminium-silicon materials Download PDFInfo
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- CN1721356A CN1721356A CN 200510033766 CN200510033766A CN1721356A CN 1721356 A CN1721356 A CN 1721356A CN 200510033766 CN200510033766 CN 200510033766 CN 200510033766 A CN200510033766 A CN 200510033766A CN 1721356 A CN1721356 A CN 1721356A
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Abstract
The present invention relates to one kind of mineral bonding material prepared with phosphoric acid and alumina and silica material at relatively low temperature and its composite material. At relatively low temperature, alumina and silica material with reaction activity and phosphoric acid produce bonding reaction to form one kind of amorphous solid mineral bonding Al-Si-P material. The mineral bonding Al-Si-P material may be used as base material and added with bauxite, silica powder, flyash, mineral slag, fiber, etc to prepare various kinds of composite material with different performances. The composite materials may be cast or pressed to form optionally without needing of introducing alkali earth ions, and the prepared material has high durability, high mechanical strength and good high temperature performance.
Description
Technical field
The present invention relates to the technology of preparing of function ceramic such as high-temperature material, erosion-resistant material and structured material, specifically is the method for phosphoric acid and alumina-silica material preparation mineral polymer and matrix material thereof.
Background technology
As everyone knows, the synthetic and preparation of solid-state material usually relates to solid state reaction.Traditional solid state reaction need be carried out under high temperature, condition of high voltage, and has defectives such as control difficulty, speed of response to the both macro and micro constitutional features of material is lower, material character instability under the conditions such as high temperature.The technology that the low temperature solid state reaction prepares solid material becomes the direction that people pursue.
The method of the described functional composite material of existing preparation mainly contains following several:
1. adopt metakaolin and sodium silicate solution to prepare the technology of unsetting lagoriolite bonding material, this technology of preparing belongs to low temperature solid state reaction technology, but reaction process need be introduced more alkalimetal ion, general requirement Na
2O/Al
2O
3Mol ratio about 1.(Davidovits, J.Geopolymers and Geopolymeric Materials.J.Therm.Anal.Vol.35, No.2, pp.429-441, Mar.-Apr.1989); Owing to introduce basic metal, cause some characteristic variation of system, poor as high-temperature flame-proof.
2. make aggregate with fused white corundum, Calcined polishing aluminum oxide and contain SiO
2Material (kaolin, metakaolin or silicon powder) prepared mould material as matrix jointly.All add 0.25% aluminous cement in the mould material of every kind of prescription.Its shortcoming be this mould material under hot conditions, could obtain higher intensity (about 20MPa) (Guan Shiwen compiling. the high-alumina refractory mould material is with kaolin, metakaolin and silicon powder filler, external refractory materials .2003.28 (2): 12～17)
With phosphoric acid salt as chemically combined refractory castable, its shortcoming is to be difficult to reaction at normal temperatures with general alumina-silica material, MgO fine powder or aluminate cement have been added for this reason, and make the refractory castable setting and harden (Han Hanglu writes. unshape refractory (the 2nd edition), Beijing: metallurgical industry press, 2003).
As seen, in the aforesaid method, system or introducing basic metal (K or Na) ion, or introduce alkaline-earth metal (Ca or Mg) ion.The introducing of these metal ions tends to cause the problem that the hot properties of system reduces.Both autotrophy intensity of back is lower, and the principal reaction process need of solid phase carries out under hot conditions.
Summary of the invention
The objective of the invention is to the defective that exists at prior art, the method for a kind of phosphoric acid and alumina-silica material preparation mineral polymer is provided, the principal reaction process of realization solid phase is carried out at low temperatures, thereby has and be convenient to the advantage operating and control.Have characteristics such as cut down the consumption of energy, synthesis technique is simple in addition.
The present invention also aims to provide a kind of described bonding material is used to prepare the method for matrix material, to satisfy the difference in functionality material requirements.
The key that realizes the low temperature solid state reaction is how to obtain to be fit to the reactant that the low temperature solid state reaction requires.
The preparation method of phosphoric acid of the present invention and alumina-silica material preparation mineral polymer comprises step:
(1) kaolin is calcined in 450 ℃～940 ℃ and was obtained metakaolin in 1～48 hour;
(2) metakaolin that obtains of step (1) and concentration be the phosphoric acid solution of 20～85% weight by 40-90: the 60-10 weight ratio is mixed, and mixture injects in the mould to be poured into a mould or compression moulding, obtains mineral polymer after hardening in 5 ℃～100 ℃.
Described bonding material is used to prepare the method for matrix material, be by 99.9-10: 0.1～90 weight ratio adds corundum in bonding material, quartzy, mullite, bauxitic clay, the bauxitic clay grog, chainotte, flyash, volcanic ash, slag, zirconium white, silicon carbide, silicon nitride, graphite, ceramic fibre, sapphire whisker, alumina powder, silica flour, andaluzite, kyanite, carbon fiber, steel fiber, Silver Nitrate, one or more mixtures in the cupric nitrate, inject cast or compression moulding in the mould, in 5 ℃～100 ℃, obtain matrix material after the sclerosis.
In the inventive method, can prepare through the low temperature solid state reaction and to have hot properties and acid and alkali-resistance erosion performance preferably, have the unsetting aluminium silicon phosphorus matter mineral polymer and the matrix material of higher low temperature intensity simultaneously.Consult pertinent literature through the contriver, do not see that it is reactant that the metakaolin of employing and phosphoric acid are arranged, low temperature is the technological method of the unsetting aluminium silicon phosphorus matter mineral polymer of preparation down.
The comparison of present method and existing method has following advantage:
1, after material mixing stirs, cast or compression moulding and sclerosis at low temperatures voluntarily, and do not need to introduce basic metal (K and Na) ionic problem, make this material have better high temperature resistant and weather resistance, higher mechanical strength or have functions such as antibiotic;
2, the reaction of the inventive method also need not introduce basic metal or alkaline-earth metal ions short coagulate short hard.
Embodiment
Embodiment 1 preparation mineral polymer
(1) kaolin is calcined in 940 ℃ and was obtained metakaolin in 1 hour;
(2) metakaolin of step (1) acquisition mixes by 90: 10 weight ratios with the phosphoric acid of concentration 85%, mixture injects compression moulding in the mould, obtain the good mineral polymer of weather resistance after 5 ℃ of sclerosis, its normal temperature ultimate compression strength is that 95MPa, refractoriness are higher than 1750 ℃.
Embodiment 2 preparation mineral polymers
(1) kaolin is calcined in 450 ℃ and was obtained metakaolin in 48 hours;
(2) metakaolin that obtains of step (1) and concentration are that 20% phosphoric acid mixes by 40: 60 weight ratios, and the interior casting of mixture injection mould obtains mineral polymer after 100 ℃ of sclerosis, and its normal temperature ultimate compression strength is that 32MPa, refractoriness are higher than 1600 ℃.
Embodiment 3 preparation mineral polymers
(1) kaolin is calcined in 800 ℃ and was obtained metakaolin in 6 hours;
(2) metakaolin that obtains of step (1) and concentration are that the phosphoric acid of 40% weight mixes by 60: 50 weight ratios, and the interior casting of mixture injection mould obtains mineral polymer after 30 ℃ of sclerosis, and its normal temperature ultimate compression strength is that 40MPa, refractoriness are higher than 1600 ℃.
The mineral polymer that embodiment 4 embodiment 1 obtain is used to prepare matrix material
The mineral polymer that embodiment 2 obtains mixes by 10: 10 part by weight with the bauxitic clay grog, and casting obtains matrix material after 100 ℃ of sclerosis, and its normal temperature ultimate compression strength is that 65MPa, refractoriness are higher than 1600 ℃.
The mineral polymer that embodiment 5 embodiment 2 obtain is used to prepare matrix material
The mineral polymer that embodiment 2 obtains and quartz, mullite, chainotte, volcanic ash, silica flour, andaluzite, kyanite were by 10: 10: 20: 20: 10: 10: weight ratio was mixed in 10: 10, inject compression moulding in the mould, obtain matrix material after 20 ℃ of sclerosis, its normal temperature ultimate compression strength is that 68MPa, refractoriness are higher than 1700 ℃.
The mineral polymer that embodiment 6 embodiment 3 obtain is used to prepare matrix material
The mineral polymer that embodiment 3 obtains mixes by 99.9: 0.1 weight ratios with Silver Nitrate, injects casting in the mould, obtains matrix material after the sclerosis, and its normal temperature ultimate compression strength is 42MPa, has water tolerance, kills the inorganic antibacterial material of ability.
Claims (2)
1, the method for a kind of phosphoric acid and alumina-silica material preparation mineral polymer is characterized in that comprising step:
(1) kaolin is calcined in 450 ℃～940 ℃ and was obtained metakaolin in 1～48 hour;
(2) metakaolin that obtains of step (1) and concentration be the phosphoric acid solution of 20～85% weight by 40-90: the 60-10 weight ratio is mixed, and mixture injects in the mould to be poured into a mould or compression moulding, obtains mineral polymer after hardening in 5 ℃～100 ℃.
2, the described bonding material of claim 1 is used to prepare the method for matrix material, it is characterized in that by 99.9-10: 0.1～90 weight ratio adds corundum in described bonding material, quartzy, mullite, bauxitic clay, the bauxitic clay grog, chainotte, flyash, volcanic ash, slag, zirconium white, silicon carbide, silicon nitride, graphite, ceramic fibre, sapphire whisker, alumina powder, silica flour, andaluzite, kyanite, carbon fiber, steel fiber, Silver Nitrate, one or more mixtures in the cupric nitrate, inject cast or compression moulding in the mould, in 5 ℃～100 ℃, obtain matrix material after the sclerosis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100337660A CN100424027C (en) | 2005-03-28 | 2005-03-28 | Method for preparing mineral bonding materials and composite materials thereof from phosphoric acid and aluminium-silicon materials |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100337660A CN100424027C (en) | 2005-03-28 | 2005-03-28 | Method for preparing mineral bonding materials and composite materials thereof from phosphoric acid and aluminium-silicon materials |
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| CN1721356A true CN1721356A (en) | 2006-01-18 |
| CN100424027C CN100424027C (en) | 2008-10-08 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101884911B (en) * | 2009-12-31 | 2012-01-04 | 中南大学 | Simple adsorbent and preparation method thereof |
| CN103086688A (en) * | 2013-01-23 | 2013-05-08 | 华南理工大学 | Method for preparing artificial stone by modifying magnesium oxychloride cement with metakaolin-aluminum dihydrogen phosphate composite modifier |
| CN105482866A (en) * | 2015-12-31 | 2016-04-13 | 黔南州山川生物科技有限公司 | Biomass fuel and preparation method thereof |
| CN110746149A (en) * | 2019-12-05 | 2020-02-04 | 广西大学 | Preparation method of conductive geopolymer |
| CN116119983A (en) * | 2022-12-08 | 2023-05-16 | 嘉华特种水泥股份有限公司 | Conductive geopolymer composite material and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109608210B (en) * | 2018-12-21 | 2022-05-13 | 茂名高岭科技有限公司 | Metakaolin-based refractory material and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES519796A0 (en) * | 1982-02-16 | 1984-08-16 | Fmc Corp | A METHOD FOR PREPARING CRYSTALLINE SODIUM-ALUMINUM PHOSPHATE. |
| ATE194000T1 (en) * | 1996-01-12 | 2000-07-15 | Krafft Alfred Peter | FIREPROOFING FOAM |
| CN1163301C (en) * | 2000-07-19 | 2004-08-25 | 中国石油天然气股份有限公司兰州炼化分公司 | Process for synthesizing molecular sieve from gaolin |
-
2005
- 2005-03-28 CN CNB2005100337660A patent/CN100424027C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101884911B (en) * | 2009-12-31 | 2012-01-04 | 中南大学 | Simple adsorbent and preparation method thereof |
| CN103086688A (en) * | 2013-01-23 | 2013-05-08 | 华南理工大学 | Method for preparing artificial stone by modifying magnesium oxychloride cement with metakaolin-aluminum dihydrogen phosphate composite modifier |
| CN103086688B (en) * | 2013-01-23 | 2014-09-10 | 华南理工大学 | Method for preparing artificial stone by modifying magnesium oxychloride cement with metakaolin-aluminum dihydrogen phosphate composite modifier |
| CN105482866A (en) * | 2015-12-31 | 2016-04-13 | 黔南州山川生物科技有限公司 | Biomass fuel and preparation method thereof |
| CN110746149A (en) * | 2019-12-05 | 2020-02-04 | 广西大学 | Preparation method of conductive geopolymer |
| CN110746149B (en) * | 2019-12-05 | 2022-03-11 | 广西大学 | Preparation method of conductive geopolymer |
| CN116119983A (en) * | 2022-12-08 | 2023-05-16 | 嘉华特种水泥股份有限公司 | Conductive geopolymer composite material and preparation method thereof |
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| CN100424027C (en) | 2008-10-08 |
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Assignee: Meizhou Baofeng Ceramics Co., Ltd. Assignor: South China University of Technology Contract fulfillment period: 2008.10.10 to 2013.10.10 contract change Contract record no.: 2009440001376 Denomination of invention: Method for preparing mineral bonding materials and composite materials thereof from phosphoric acid and aluminium-silicon materials Granted publication date: 20081008 License type: Exclusive license Record date: 2009.9.7 |
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