CN104556876A - Geopolymer synthetic method - Google Patents
Geopolymer synthetic method Download PDFInfo
- Publication number
- CN104556876A CN104556876A CN201410852078.6A CN201410852078A CN104556876A CN 104556876 A CN104556876 A CN 104556876A CN 201410852078 A CN201410852078 A CN 201410852078A CN 104556876 A CN104556876 A CN 104556876A
- Authority
- CN
- China
- Prior art keywords
- geopolymer
- synthetic method
- metakaolin
- reaction
- sulfuric acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A geopolymer synthetic method adopts the main technical scheme that an exciting agent (sulfuric acid) and an invalid sulfated polishing solution serving as an aid are added into metakaolin, and then mixed and stirred, the mixture is injected into a die for reaction, and maintenance is performed after the reaction to obtain geopolymer. According to the geopolymer synthetic method, sulfuric acid is taken as the main exciting agent, and the invalid sulfated polishing solution serves as the aid, the water consumption is reduced, the geopolymer can be dry quickly, the geopolymer production time is greatly shortened, and the production efficiency is improved. The geopolymer synthetic method is easy to operate and concise in technological process.
Description
Technical field
The present invention relates to a kind of synthetic method of inorganic polymeric material, particularly a kind of synthetic method of geopolymer.
Background technology
Geopolymer (Geopolymer) studies one of very active non-metallic material in recent years in the world.It is with clay, industrial residue or slag for main raw material, and alkali or acid are exciting agent, through suitable art breading, by a class Novel Inorganic Polymers material that chemical reaction obtains under lower temperature conditions.This material be that new development is in recent years got up, likely replace cement in many occasions, and have the type material than cement more excellent properties.Geopolymer has that intensity is high, sclerosis is fast, acid-alkali-corrosive-resisting etc. is better than the special performance of ordinary Portland cement, has the great interest that the advantages such as material enriches, cheap, save energy cause domestic and international materials specialist simultaneously.
Famous theory alkali-aggregate reaction is also alkali pasc reaction, refers to the alkaline matter in concrete and the activeconstituents generation chemical reaction in aggregate, causes inside concrete self-expanding stress and the phenomenon ftractureed.Alkali-aggregate reaction is quite serious to the harm that concrete works brings.The ground polymer material more than 95% of current research is all be polymerized as exciting agent by alkali.Excite synthesis geology polymer material cost higher with alkaline matter, and the existence of alkali-activator easily make synthetic materials produce " alkali-aggregate reaction ", causes synthetic materials to ftracture and strength degradation.Acid excites the ground polymer material of synthesis to have the performances such as good resistance to compression and resistance to chemical corrosion, can make material of construction, pipeline, insulating material etc.But the research of synthesizing geopolymer at present using acid as exciting agent is little, has a small amount of pertinent literature to show, has people to react as exciting agent and slag using concentrated hydrochloric acid or sulfuric acid, make geopolymer.Hydrochloric acid, sulfuric acid are all strong acid, and price is more expensive, thus make cost of manufacture high, and high concentrated acid is dangerous when operating, and is disadvantageous for industrial production.
Summary of the invention
The present invention is directed to the technical problem of above-mentioned proposition, invent a kind of synthetic method of geopolymer, the method is using sulfuric acid as exciting agent, with inefficacy sulfate polishing fluid for auxiliary, synthesize geopolymer with metakaolin, make synthesized geopolymer ultimate compression strength good, Functionality, quality and appealing design.Most importantly, with sulfuric acid synthesized by exciting agent geopolymer process in, dry very fast of model, shortens synthesis required time, improves production efficiency.
Technical solution of the present invention is as follows:
A synthetic method for geopolymer, main technical schemes is: using exciting agent sulfuric acid with add in metakaolin as the inefficacy sulfate polishing fluid of auxiliary, mix and blend, injects mould and reacts, carry out maintenance, obtain product after reaction terminates.
Wherein, the consumption of described sulfuric acid is 0.6 ~ 1.0 times of metakaolin quality.
Wherein, the consumption of described inefficacy sulfate polishing fluid is 0.5 ~ 1.1 times of metakaolin quality.
Wherein, described sulfuric acid to be massfraction be 98% the vitriol oil.
Wherein, in described inefficacy sulfate polishing fluid, the content of aluminium is 0.3% by mass percentage.
Wherein, the reaction conditions of described reaction for reacting 4 ~ 48h at temperature is 30 ~ 90 DEG C.
Wherein, described maintenance is put into sealing bag be placed in 40 ~ 80 DEG C of environment 3 ~ 10 days for reaction being terminated rear gained material.
Wherein, described metakaolin is for being heated to 400 ~ 900 DEG C by kaolin and keeping 0.5 ~ 2h, obtained after cooling.
Compared with prior art, beneficial effect of the present invention:
Sulfuric acid of the present invention is as the exciting agent of synthesis geopolymer, and inefficacy sulfate polishing fluid is auxiliary.Sulfuric acid is strong acid, can with the activated silica in metakaolin, aluminium generation depolymerization---aggregation, the aluminium in inefficacy sulfate polishing fluid obviously can promote depolymerization---the carrying out of aggregation, during Reactive Synthesis geopolymer, formed there is SiO
4and AlO
4the 3 D stereo network structure of tetrahedron stochastic distribution, basic metal or alkaline-earth metal ions are distributed in balance electricity price between network hole, and forming property is good, Functionality, quality and appealing design, high strength geology polymer material; And the present invention is using sulfuric acid as main exciting agent, inefficacy sulfate polishing fluid is auxiliary, effectively reduces the consumption of water, and the ratio that geopolymer is done is very fast, substantially reduces the geopolymer production time, enhances productivity; Easy handling of the present invention, technical process is succinct.
Embodiment
Further describe the present invention referring to embodiment, to make those skilled in the art can implement according to this with reference to specification sheets word, scope is not limited by embodiments of the present invention.Sulfuric acid of the present invention is commercially available analytical pure (ART), and inefficacy polishing fluid is provided by the South-South Aluminum group company in Nanning.
Embodiment 1
The kaolin of 100g is put into retort furnace be heated to 800 DEG C and be incubated 1h, after cooling, obtain metakaolin.Take the metakaolin of 30g, add 20g auxiliary inefficacy sulfate polishing fluid (in inefficacy sulfate polishing fluid, the content of aluminium is 0.3% by mass percentage), then 18g exciting agent 98% vitriol oil is added, inject mould after stirring, vibrate the air of discharging in reactant, put into 80 DEG C of thermostat containers and react, keep temperature to be 80 DEG C to react, reaction times is 5h, and reaction terminates the rear demoulding, and recording sample ultimate compression strength is 19MPa.Sample is put into sealed plastic bag, maintenance in 80 DEG C of thermostat containers, maintenance 10 days, now record the high strength polymer material synthetically that its ultimate compression strength is reached for 36MPa.Embodiment 2
The kaolin of 100g is put into retort furnace be heated to 900 DEG C and be incubated 0.5h, after cooling, obtain metakaolin.Take the metakaolin of 30g, add 15g auxiliary inefficacy sulfate polishing fluid (in inefficacy sulfate polishing fluid, the content of aluminium is 0.3% by mass percentage), then 30g exciting agent 98% vitriol oil is added, inject mould after stirring, vibrate the air of discharging in reactant, put into 30 DEG C of thermostat containers and react, keep temperature to be 30 DEG C to react, reaction times is 48h, and reaction terminates the rear demoulding, and recording sample ultimate compression strength is 16MPa.Sample is put into sealed plastic bag, maintenance in 40 DEG C of thermostat containers, maintenance 10 days, surveys its ultimate compression strength again, now records the high strength polymer material synthetically that its ultimate compression strength is 26.5MPa.
Embodiment 3
The kaolin of 100g is put into retort furnace be heated to 750 DEG C and keep 2h, after cooling, obtain metakaolin.Take the metakaolin of 30g, add 33g auxiliary inefficacy sulfate polishing fluid (in inefficacy sulfate polishing fluid, the content of aluminium is 0.3% by mass percentage), then 24g exciting agent 98% vitriol oil is added, inject mould after stirring, vibrate the air of discharging in reactant, put into 60 DEG C of thermostat containers and react, keep temperature to be 60 DEG C to react, reaction times is 10h, and reaction terminates the rear demoulding, and recording sample ultimate compression strength is 28.2MPa.Sample is put into plastic sealing bag, maintenance in 60 DEG C of thermostat containers, maintenance 5 days, surveys its ultimate compression strength again, now records the high strength polymer material synthetically that its ultimate compression strength is 42.9MPa.
Embodiment 4
The kaolin of 100g is put into retort furnace be heated to 800 DEG C and keep 1.5h, after cooling, obtain metakaolin.Take the metakaolin of 30g, add 33g auxiliary inefficacy sulfate polishing fluid (in inefficacy sulfate polishing fluid, the content of aluminium is 0.3% by mass percentage), then 24g exciting agent 98% vitriol oil is added, inject mould after stirring, vibrate the air of discharging in reactant, put into 90 DEG C of thermostat containers and react, keep temperature to be 90 DEG C to react, reaction times is 4h, and reaction terminates the rear demoulding, and recording sample ultimate compression strength is 29.0MPa.Sample is put into plastic sealing bag, maintenance in 55 DEG C of thermostat containers, maintenance 8 days, surveys its ultimate compression strength again, now records the high strength polymer material synthetically that its ultimate compression strength is 45.6MPa.
Sulfuric acid of the present invention is as the exciting agent of synthesis geopolymer, and inefficacy sulfate polishing fluid is auxiliary.Sulfuric acid is strong acid, can with the activated silica in metakaolin, aluminium generation depolymerization---aggregation, the aluminium in inefficacy sulfate polishing fluid obviously can promote depolymerization---the carrying out of aggregation, during Reactive Synthesis geopolymer, formed there is SiO
4and AlO
4the 3 D stereo network structure of tetrahedron stochastic distribution, basic metal or alkaline-earth metal ions are distributed in balance electricity price between network hole, and forming property is good, Functionality, quality and appealing design, high strength geology polymer material; And the present invention is using sulfuric acid as main exciting agent, inefficacy sulfate polishing fluid is auxiliary, effectively reduces the consumption of water, and the ratio that geopolymer is done is very fast, substantially reduces the geopolymer production time, enhances productivity; Easy handling of the present invention, technical process is succinct.
Claims (8)
1. a synthetic method for geopolymer, is characterized in that: add in metakaolin by sulfuric acid and inefficacy sulfate polishing fluid, mix and blend, injects mould and reacts, carry out maintenance, obtain product after reaction terminates.
2. the synthetic method of geopolymer according to claim 1, is characterized in that: the consumption of described sulfuric acid is 0.6 ~ 1.0 times of metakaolin quality.
3. the synthetic method of geopolymer according to claim 1, is characterized in that: the consumption of described inefficacy sulfate polishing fluid is 0.5 ~ 1.1 times of metakaolin quality.
4. the synthetic method of geopolymer according to claim 1, is characterized in that: described sulfuric acid to be massfraction be 98% the vitriol oil.
5. the synthetic method of geopolymer according to claim 1, is characterized in that: in described inefficacy sulfate polishing fluid, the content of aluminium is 0.3% by mass percentage.
6. the synthetic method of geopolymer according to claim 1, is characterized in that: the reaction conditions of described reaction for reacting 4 ~ 48h at temperature is 30 ~ 90 DEG C.
7. the synthetic method of geopolymer according to claim 1, is characterized in that: described maintenance is put into sealing bag be placed in 40 ~ 80 DEG C of environment 5 ~ 10 days for reaction being terminated rear gained material.
8. the synthetic method of geopolymer according to claim 1, is characterized in that: described metakaolin is for being heated to 400 ~ 900 DEG C by kaolin and keeping 0.5 ~ 2h, obtained after cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852078.6A CN104556876B (en) | 2014-12-31 | 2014-12-31 | A kind of synthetic method of geo-polymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852078.6A CN104556876B (en) | 2014-12-31 | 2014-12-31 | A kind of synthetic method of geo-polymer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104556876A true CN104556876A (en) | 2015-04-29 |
| CN104556876B CN104556876B (en) | 2016-09-28 |
Family
ID=53074065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410852078.6A Active CN104556876B (en) | 2014-12-31 | 2014-12-31 | A kind of synthetic method of geo-polymer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104556876B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673470A (en) * | 2016-12-09 | 2017-05-17 | 钦州市钦南区科学技术情报研究所 | Geopolymer and preparation method thereof |
| CN107651891A (en) * | 2017-09-14 | 2018-02-02 | 宁波市景廷建材科技有限公司 | A kind of New Building Materials of geo-polymer and preparation method thereof |
| CN114560640A (en) * | 2022-01-26 | 2022-05-31 | 杭州灰弘环保科技有限公司 | Preparation method of acid-activated fly ash geopolymer |
| US11932578B1 (en) * | 2022-11-08 | 2024-03-19 | Wuhan University Of Technology | Granite stone powder phosphoric acid-based geopolymer and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4487632A (en) * | 1983-08-11 | 1984-12-11 | Stauffer Chemical Company | Fast-setting cements from liquid waste phosphorus pentoxide containing materials |
| CN101560071A (en) * | 2009-05-26 | 2009-10-21 | 广西大学 | Porous material of phosphate-based geopolymer and preparation method thereof |
| CN103864322A (en) * | 2014-01-17 | 2014-06-18 | 广西大学 | Synthetic method of geopolymer |
-
2014
- 2014-12-31 CN CN201410852078.6A patent/CN104556876B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4487632A (en) * | 1983-08-11 | 1984-12-11 | Stauffer Chemical Company | Fast-setting cements from liquid waste phosphorus pentoxide containing materials |
| CN101560071A (en) * | 2009-05-26 | 2009-10-21 | 广西大学 | Porous material of phosphate-based geopolymer and preparation method thereof |
| CN103864322A (en) * | 2014-01-17 | 2014-06-18 | 广西大学 | Synthetic method of geopolymer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673470A (en) * | 2016-12-09 | 2017-05-17 | 钦州市钦南区科学技术情报研究所 | Geopolymer and preparation method thereof |
| CN107651891A (en) * | 2017-09-14 | 2018-02-02 | 宁波市景廷建材科技有限公司 | A kind of New Building Materials of geo-polymer and preparation method thereof |
| CN114560640A (en) * | 2022-01-26 | 2022-05-31 | 杭州灰弘环保科技有限公司 | Preparation method of acid-activated fly ash geopolymer |
| CN114560640B (en) * | 2022-01-26 | 2022-11-18 | 杭州灰弘环保科技有限公司 | Preparation method of acid-excited fly ash geopolymer |
| US11932578B1 (en) * | 2022-11-08 | 2024-03-19 | Wuhan University Of Technology | Granite stone powder phosphoric acid-based geopolymer and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104556876B (en) | 2016-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102875067B (en) | Modified nano mineral powder-containing aerated brick | |
| CN102875065B (en) | Preparation process for fluorite slag-containing aerated brick | |
| CN103864322B (en) | A kind of synthetic method of geopolymer | |
| CN110759655B (en) | Industrial waste based geopolymer | |
| CN102875183B (en) | Preparation process for autoclaved curing aerated brick | |
| CN104556876A (en) | Geopolymer synthetic method | |
| CN102765923B (en) | Method for producing aerated hollow bricks by carbide slag | |
| CN101845132B (en) | Modified melamine high-efficiency water reducing agent with low cost | |
| CN109776003A (en) | A kind of calcium based geopolymer cementitious material of multiple elements design powder and preparation method thereof | |
| CN101157535A (en) | Short fibre reinforcing inorganic silicon-aluminum polymer composite material | |
| CN102765918B (en) | Method for manufacturing aerated building blocks by doped navajoite tailings | |
| CN102108026B (en) | Novel haydite concrete light-weight building block walling material and preparation method thereof | |
| CN103864455A (en) | Method for yellow phosphorus slag base aerated building blocks | |
| CN104355573A (en) | Fly ash comprehensive utilization process method | |
| CN103803919A (en) | Polystyrene light energy-saving concrete block and preparation method thereof | |
| CN102964083A (en) | Modified soy protein foaming agent for concrete | |
| CN108840636A (en) | Improve the preparation method of mortar mechanical property | |
| CN102815900A (en) | Composite silicate heat insulation material and preparation method thereof | |
| CN109503003A (en) | A method of geo-polymer is prepared using oxidizing type of gold ore dump leaching tailings | |
| CN102795815A (en) | Cullet-doped aerated block production method | |
| CN104591569A (en) | Geopolymer synthesizing method | |
| CN101314539A (en) | Baking-free corrosion resistant facing brick and manufacture method thereof | |
| CN104072040A (en) | Acid-resistant thermal-insulation concrete and preparation method | |
| CN104212023A (en) | Waste plastic aerated hollow brick and making method thereof | |
| CN102887672B (en) | Air-added brick taking cullet as substrate and method for processing air-added brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |