CN101157530A - Nano modified lignin mahogany sulfonate concrete water reducer and preparation method thereof - Google Patents
Nano modified lignin mahogany sulfonate concrete water reducer and preparation method thereof Download PDFInfo
- Publication number
- CN101157530A CN101157530A CNA200710122094XA CN200710122094A CN101157530A CN 101157530 A CN101157530 A CN 101157530A CN A200710122094X A CNA200710122094X A CN A200710122094XA CN 200710122094 A CN200710122094 A CN 200710122094A CN 101157530 A CN101157530 A CN 101157530A
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- CN
- China
- Prior art keywords
- water reducer
- weight part
- water reducing
- nanometer
- reducing 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/0094—Agents for altering or buffering the pH; Ingredients characterised by their pH
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00008—Obtaining or using nanotechnology related materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a preparation method of nanometer modified lignin sulfonic acid concrete salt water reducing agent, which adopts the lignin sulfonic acid salt water reducing agent and the nanometer monox for the sake of in-situ synthesis, that is, the nanometer modified lignin sulfonic acid concrete salt water reducing agent is produced from the combination of the lignin sulfonic acid salt water reducing agent in the generation of nanometer monox. In the process of in-situ synthesis, the 1,000 weight parts are taken as the basic material; the appropriate amount of alkali the solution comprising 2-20 weight parts of nanometer matrix, 4-50 weight parts of soluble agent and 0.1-1 weight part of surface activator are added for the nanometer mondification of lignition sulfonic acid salt. The modified water reducing agent has the advantages of moderate reaction conditions, easily accessible raw material, high effectiveness, cheapness and good water reducing effect, etc.
Description
Technical field
The present invention relates to a kind of nano modified lignin mahogany sulfonate concrete water reducer and preparation method, belong to chemical technology field.
Background technology
The time that the concrete fast development of China is existing nearly 20 years, some large size cities at home and some coastland popularity rates are quite high.At present, the popularity rate of the commerical ready-mixed concrete of each province is all rising year by year.Various heavy constructions are also closely related with concrete application, and this also just makes an emerging industry more and more be paid close attention to by everybody, concrete admixture research.Its appearance has improved concrete every performance index, simultaneously its cost has been reduced.
The effect of water reducer mainly is: reduce mixing water, improve workability, save cement, improve intensity.Water reducer is as a kind of surface active material, adds the back cement granules is played diffusion, simultaneously the free-water that comprises in the cement colloid is discharged, and reaches the purpose of diminishing.
At present, the water reducer on the market mainly contains: the polycarboxylic acid series high efficiency water reducing agent of sulfonated lignin water reducer, naphthalene water reducer, the third generation, amido sulfoacid series, melamine class water reducer and melamine system water reducer etc.What account for main flow market is naphthalene water reducer, and along with the continuous research of the water reducer polycarboxylic acid series high efficiency water reducing agent of the third generation, the share in its shared market is also increasing.The lignin water reducer is as first-generation water reducer, but the competition of not withdrawing from the market, and major cause is its cheap cost and raw material sources widely.
Summary of the invention
Technical problem to be solved by this invention provides a kind of nano modified lignin mahogany sulfonate concrete water reducer and preparation method, and the method for modifying that solves existing sulfonated lignin water reducer exists shortcomings such as modified component is too much, modified technique is complicated, modified condition harshness.
Technical scheme of the present invention:
A kind of nano modified lignin mahogany sulfonate concrete water reducer, contained component and content thereof are as follows:
Sulfonated lignin 1000 weight parts
Nanoparticle parent 2～20 weight parts
Solvent 4～50 weight parts
Tensio-active agent 0.1～1 weight part
Alkaline conditioner is an amount of
The nanoparticle parent refers to: tetraethoxy, water glass;
Solvent is meant: propyl carbinol, ethanol, water;
Tensio-active agent is meant: cetyl trimethylammonium bromide;
Alkaline conditioner is meant: hydrochloric acid or sodium hydroxide.
A kind of preparation method of nano modified lignin mahogany sulfonate concrete water reducer, it is synthetic that these method employing sulfonated lignin and nano silicon oxide carry out original position, promptly in the generative process of nano level silicon oxide, nano silicon oxide is combined, obtain having the high efficiency water reducing agent of novel texture with sulfonated lignin.
A kind of preparation method of nano modified lignin mahogany sulfonate concrete water reducer: contain following steps:
The first step: with 2～20 weight part nanoparticle parents, 4～50 milliliters of solvents, 0.1～1 weight part cetyl trimethylammonium bromide (CTAB) is miscible in the Erlenmeyer flask.
Second step: get 1000 weight part sulfonated lignin in reaction vessel, under 60 ℃ of heating in water bath and condition of stirring, add the prepared solution of the first step, mix.
The 3rd step: after mixing, add alkaline conditioner according to reaction conditions, get final product behind the reaction 6h product of the present invention.
The present invention compares the beneficial effect that has with prior art: the preparation method is simple, the reaction conditions gentleness, starting material are easy to obtain, and inexpensive effect is high, show through the cement paste experiment: this modification water reducer increases by 50～90mm than the degree of mobilization of existing sulfonated lignin analog high efficiency water reducing agent; Show through the sand-cement slurry experiment: this modification water reducer can improve 10%～15% than the water-reducing rate of existing sulfonated lignin analog high efficiency water reducing agent, reaches 28%～34%.A large amount of experiments prove that fully the water reducer of this novel texture has inexpensive, characteristics of high efficiency.
Embodiment
The sulfonated lignin water reducer that the present invention adopts chemical industry company limited of Tumen City Hua Wei friendly nation to produce is a base-material, and it is embodiment that the parent of nano silicon oxide adopts tetraethoxy or water glass, and present method is described further.
Embodiment 1:
Preparation process is as follows:
Step 1: with 2 weight part tetraethoxys, 4 milliliters of propyl carbinols, 0.1 weight part cetyl trimethylammonium bromide (CTAB) is miscible in the Erlenmeyer flask.
Step 2: get 1000 weight part sulfonated lignin in reaction vessel, under 60 ℃ of heating in water bath, constant temperature and condition of stirring, add the prepared solution of step 1, mix.
Step 3: after mixing, add alkaline conditioner sodium hydroxide, get final product behind the reaction 6h product of the present invention.
Reaction conditions gentleness of the present invention at room temperature just can react, and starting material are simple and easy to, and do not have " three wastes " to produce in process of production.
Show through the cement paste experiment: this modification water reducer increases by 50～90mm than the degree of mobilization of existing sulfonated lignin analog high efficiency water reducing agent; Show through the sand-cement slurry experiment: this modification water reducer can improve 10%～15% than the water-reducing rate of existing sulfonated lignin analog high efficiency water reducing agent, reaches 28%～34%.
Embodiment 2
Step 1: with 4 weight part water glass, 8 ml waters, 0.2 weight part cetyl trimethylammonium bromide (CTAB) is miscible in the Erlenmeyer flask.
Step 2: get 1000 weight part sulfonated lignin in reaction vessel, under 60 ℃ of heating in water bath, constant temperature and condition of stirring, add the prepared solution of step 1, mix.
Step 3: after mixing, add alkaline conditioner hydrochloric acid, get final product behind the reaction 6h product of the present invention.
Reaction conditions gentleness of the present invention at room temperature just can react, and starting material are simple and easy to, and do not have " three wastes " to produce in process of production.
Embodiment 3:
Preparation process is as follows:
Step 1: with 10 weight part tetraethoxys, 45 milliliters of propyl carbinols, 0.5 weight part cetyl trimethylammonium bromide (CTAB) is miscible in the Erlenmeyer flask.
Step 2: get 1000 weight part sulfonated lignin high efficiency water reducing agents in reaction vessel, under 60 ℃ of heating in water bath, constant temperature and condition of stirring, add the prepared solution of step 1, mix.
Step 3: after mixing, add alkaline conditioner sodium hydroxide or hydrochloric acid, get final product behind the reaction 6h product of the present invention.
Reaction conditions gentleness of the present invention at room temperature just can react, and starting material are simple and easy to, and do not have " three wastes " to produce in process of production.
Embodiment 4:
Preparation process is as follows:
Step 1: with 20 weight part tetraethoxys, 50 milliliters of propyl carbinols, 1 weight part cetyl trimethylammonium bromide (CTAB) is miscible in the Erlenmeyer flask.
Step 2: get 1000 weight part sulfonated lignin high efficiency water reducing agents in reaction vessel, under 60 ℃ of heating in water bath, constant temperature and condition of stirring, add the prepared solution of step 1, mix.
Step 3: after mixing, add alkaline conditioner sodium hydroxide, get final product behind the reaction 6h product of the present invention.
Reaction conditions gentleness of the present invention at room temperature just can react, and starting material are simple and easy to, and do not have " three wastes " to produce in process of production.
Claims (3)
1. a nano modified lignin mahogany sulfonate concrete water reducer is characterized in that, component and content thereof are as follows:
Sulfonated lignin 1000 weight parts;
Nanoparticle parent 2～20 weight parts;
Solvent 4～50 weight parts;
Tensio-active agent 0.1～1 weight part;
Alkaline conditioner is an amount of.
2. a kind of nano modified lignin mahogany sulfonate concrete water reducer according to claim 1 is characterized in that:
The nanoparticle parent refers to: tetraethoxy or water glass;
Solvent is meant: propyl carbinol or ethanol or water;
Tensio-active agent is meant: cetyl trimethylammonium bromide;
Alkaline conditioner is meant: hydrochloric acid or sodium hydroxide.
3. the preparation method of a nano modified lignin mahogany sulfonate concrete water reducer according to claim 1, it is as follows to it is characterized in that containing step:
Step (1), with 2～20 weight part nanoparticle parents, 4～50 milliliters of solvents, 0.1～1 weight part cetyl trimethylammonium bromide (CTAB) is miscible in the Erlenmeyer flask;
Step (2), get 1000 weight part sulfonated lignin in reaction vessel, under 60 ℃ of heating in water bath and condition of stirring, add the prepared solution of step (1), mix;
Step (3), mix after, add alkaline conditioner according to reaction conditions, get final product behind the reaction 6h product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710122094XA CN100569688C (en) | 2007-09-21 | 2007-09-21 | A kind of nano modified lignin mahogany sulfonate concrete water reducer and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710122094XA CN100569688C (en) | 2007-09-21 | 2007-09-21 | A kind of nano modified lignin mahogany sulfonate concrete water reducer and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101157530A true CN101157530A (en) | 2008-04-09 |
| CN100569688C CN100569688C (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710122094XA Expired - Fee Related CN100569688C (en) | 2007-09-21 | 2007-09-21 | A kind of nano modified lignin mahogany sulfonate concrete water reducer and preparation method |
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| CN (1) | CN100569688C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357831B (en) * | 2008-09-02 | 2011-01-19 | 华南理工大学 | Melamine modified lignosulphonate high efficiency water reducing agent, preparation method and application thereof |
| CN102452783A (en) * | 2010-11-03 | 2012-05-16 | 新奥科技发展有限公司 | Compound agent for raising slurry concentration and method thereof |
| CN107771791A (en) * | 2017-10-24 | 2018-03-09 | 洛阳师范学院 | A kind of lignosulfonates mesoporous SiO 2 nanosphere and preparation method thereof |
| CN113800807A (en) * | 2021-10-09 | 2021-12-17 | 砼牛（上海）智能科技有限公司 | Green environment-friendly concrete water reducing agent and preparation method thereof |
| CN114560647A (en) * | 2022-04-26 | 2022-05-31 | 石家庄市长安育才建材有限公司 | Concrete regulator and preparation method thereof |
-
2007
- 2007-09-21 CN CNB200710122094XA patent/CN100569688C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357831B (en) * | 2008-09-02 | 2011-01-19 | 华南理工大学 | Melamine modified lignosulphonate high efficiency water reducing agent, preparation method and application thereof |
| CN102452783A (en) * | 2010-11-03 | 2012-05-16 | 新奥科技发展有限公司 | Compound agent for raising slurry concentration and method thereof |
| CN102452783B (en) * | 2010-11-03 | 2015-05-13 | 新奥科技发展有限公司 | Compound agent for raising slurry concentration and method thereof |
| CN107771791A (en) * | 2017-10-24 | 2018-03-09 | 洛阳师范学院 | A kind of lignosulfonates mesoporous SiO 2 nanosphere and preparation method thereof |
| CN113800807A (en) * | 2021-10-09 | 2021-12-17 | 砼牛（上海）智能科技有限公司 | Green environment-friendly concrete water reducing agent and preparation method thereof |
| CN114560647A (en) * | 2022-04-26 | 2022-05-31 | 石家庄市长安育才建材有限公司 | Concrete regulator and preparation method thereof |
| CN114560647B (en) * | 2022-04-26 | 2022-07-29 | 石家庄市长安育才建材有限公司 | Concrete regulator and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN100569688C (en) | 2009-12-16 |
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Granted publication date: 20091216 Termination date: 20130921 |