CN101508537A - Aliphatic high-efficiency water reducing agent and method of producing the same - Google Patents
Aliphatic high-efficiency water reducing agent and method of producing the same Download PDFInfo
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- CN101508537A CN101508537A CNA200910029985XA CN200910029985A CN101508537A CN 101508537 A CN101508537 A CN 101508537A CN A200910029985X A CNA200910029985X A CN A200910029985XA CN 200910029985 A CN200910029985 A CN 200910029985A CN 101508537 A CN101508537 A CN 101508537A
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Abstract
The invention provides an aliphatic high-efficiency water reducing agent and a preparation method thereof, wherein the aliphatic high-efficiency water reducing agent ensures that concrete has good workability and durability, has small content of sodium sulfate, has small pollution to the environment, and has no crystals in winter. The aliphatic high-efficiency water reducing agent is prepared by the following raw materials in percentage by mass: 10 to 18 percent of 65 to 85 percent anhydrous sodium sulfite, 5 to 10 percent of 96 to 100 percent sodium sulfanilate, 0.5 to 2 percent of 30 to 40 percent sodium hydroxide, 8 to 15 percent of 99 to 100 percent acetone, 15 to 35 percent of 36.5 to 37.5 percent formaldehyde, and the balance being water. The water reducing agent prepared by the method has low requirement on reaction equipment, can save a large amount of investment, and has the advantages of simple and convenient operation, short production period, no waste materials, wide source of raw materials, low cost, small pollution to the environment, and good flowability under low water cement ratio.
Description
Technical field
The present invention relates to a kind ofly can make not bleed of concrete, the high efficiency water reducing agent of slow setting not, relate in particular to a kind of aliphatic high-efficiency water reducing agent and preparation method thereof.
Background technology
In recent years, along with the fast development of operating technique, fluidised form, high-strength and high performance commerical ready-mixed concrete are promoted rapidly, and therefore demand and the performance demands to high efficiency water reducing agent improves day by day, and traditional water reducer can not meet the demands.The consistency existing problems of present most popular naphthalene system and three polyamine series high-efficiency water-reducing agents and cement the water-reducing rate reduction occurs and collapse losing problems such as excessive, have caused suitable difficulty to concrete construction.
Summary of the invention
Goal of the invention: the objective of the invention is problem at the prior art existence, provide a kind of concrete to have good operation and weather resistance, sodium sulphate content is few, environmental pollution is little, do not have the crystalline aliphatic high-efficiency water reducing agent winter, another object of the present invention has provided the preparation method of described aliphatic high-efficiency water reducing agent.
Technical scheme: aliphatic high-efficiency water reducing agent of the present invention is made by the raw material of following mass percent: mass percent (down together) is formaldehyde 15-35%, the excess water of acetone 8-15%, the 36.5%-37.5% of sodium hydroxide 0.5-2%, the 99-100% of Sodium sulfanilate 5-10%, the 30%-40% of sodium sulphite anhydrous 99.3 10-18%, the 96-100% of 65%-85%.
The preparation method of aliphatic high-efficiency water reducing agent of the present invention is characterized in that this method comprises following step:
1, by described each mass percent weighing each component, in reactor, adds entry, sodium sulphite anhydrous 99.3 and Sodium sulfanilate warming while stirring to 35-55 ℃.
2, drip acetone, sulfonation 30-40 minute.
3, add sodium hydroxide reaction 15-30 minute, warming while stirring is to the 55-65 degree.
4, drip formaldehyde, be added dropwise to complete in 3 hours, and temperature is risen to 70-83 ℃, after dropping formaldehyde was finished, warming while stirring was to 101-110 ℃, and insulation reaction was at 2.5-5.5 hour.
5, the aforesaid liquid cooling is obtained the liquid water reducer.
Beneficial effect: adopt aliphatic high-efficiency water reducing agent of the present invention, its distinguishing feature is can reach the intensive dispersion effect under the very little situation of consumption, not bleed, and slow setting is not particularly useful for using under the lower condition of temperature, and is non-crystallizable, not stratified.Less demanding to conversion unit, can save great amount of investment, easy and simple to handle, with short production cycle, no waste material produces.The starting material source is wide, and price is low, and environmental pollution is little, under very low water cement ratio, good flowability is arranged.
Embodiment
Embodiment 1: add the water of 615g and mass percent and be 65% S-WAT 100g and quality percentage in the four-hole reaction flask of cooling and reflux device, agitator, thermometer, dropping funnel is housed and be 96% Sodium sulfanilate 50g, be heated to 35 ℃ under stirring, the dropping mass percent is 99% acetone 80g, sulfonation 30 minutes, adding mass percent and be 30% sodium hydroxide solution 5g reacted 15 minutes again, be warmed up to 55 ℃, dripping mass percent is 36.5% formaldehyde 150g, and dripping formaldehyde is 3 hours.Liquid gradually becomes orange by colourless, until scarlet.Controlled temperature, make add formaldehyde after temperature slowly rise to 101 ℃, insulation reaction 2.5 hours obtains liquid product, solid content is 34%, water-reducing rate is 22%-28%.
Embodiment 2: the reflux cooling device is being housed, agitator, thermometer, add the water of 200g and mass percent in the four-hole reaction flask of dropping funnel and be 85% sodium sulphite anhydrous 99.3 180g and quality percentage and be 100% Sodium sulfanilate 100g, be heated to 45 ℃ under stirring, the dropping mass percent is 100% acetone 150g, after the sulfonation 35 minutes, the adding mass percent is 40% sodium hydroxide solution 20g, reacted again 20 minutes, be warming up to 55 ℃ then, dripping mass percent is 37.5% formaldehyde 350g, dripping formaldehyde is 3 hours, and liquid gradually becomes orange by colourless, until scarlet, controlled temperature, make add formaldehyde after temperature slowly rise to 105 ℃, be incubated 3.5 hours, obtain liquid product, solid content is 33%, and water-reducing rate is 25-30%.
Embodiment 3: the reflux cooling device is being housed, agitator, thermometer, add the water of 390g and mass percent in the four-hole reaction flask of dropping funnel and be 85% sodium sulphite anhydrous 99.3 150g and quality percentage and be 98% Sodium sulfanilate 80g, be heated to 55 ℃ under stirring, drip 120g acetone, after the sulfonation 40 minutes, the adding mass percent is 35% sodium hydroxide solution 10g, reacted again 30 minutes, be warming up to 65 ℃ then, dripping mass percent is 37% formaldehyde formaldehyde 250g, dripping formaldehyde is 3 hours, and liquid gradually becomes orange by colourless, until scarlet, controlled temperature, make add formaldehyde after temperature slowly rise to 110 ℃, be incubated 5.5 hours, obtain liquid product, solid content is 33%, and water-reducing rate is 25-30%.
The clean slurry degree of mobilization of the present invention and other water reducers compares:
| Water reducer | Volume (accounting for the heavy % of cement) | Clean slurry degree of mobilization: mm | Clean slurry degree of mobilization: mm after 1 hour |
| Naphthalene series high-efficiency water-reducing agent | 0.75 | 230 | 210 |
| Amino high efficiency water reducing agent | 0.5 | 230 | 245 |
| Aliphatic high-efficiency water reducing agent | 0.5 | 225 | 200 |
| Example 1 | 0.5 | 240 | 250 |
| Example 2 | 0.5 | 245 | 255 |
Wherein: water cement ratio: 0.29, cement: reference cement
Claims (2)
1, a kind of aliphatic high-efficiency water reducing agent is characterized in that: described water reducer is made by the raw material of following mass percent: formaldehyde 15-35%, the excess water of acetone 8-15%, the 36.5%-37.5% of sodium hydroxide 0.5-2%, the 99-100% of Sodium sulfanilate 5-10%, the 30%-40% of sodium sulphite anhydrous 99.3 10-18%, the 96-100% of 65%-85%.
2, the method for preparation aliphatic high-efficiency water reducing agent according to claim 1 is characterized in that this method comprises following step:
(1) takes by weighing each component by the described mass percent of claim 1, in reactor, add entry, S-WAT and Sodium sulfanilate warming while stirring to 35-55 ℃;
(2) drip acetone, sulfonation 30-40 minute;
(3) add sodium hydroxide reaction 15-30 minute, warming while stirring is to the 55-65 degree;
(4) drip formaldehyde, be added dropwise to complete in 3 hours, and temperature is risen to 70-83 ℃, after dropping formaldehyde was finished, warming while stirring was to 101-110 ℃, and insulation reaction was at 2.5-5.5 hour;
(5) the aforesaid liquid cooling is obtained the liquid water reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910029985XA CN101508537A (en) | 2009-03-30 | 2009-03-30 | Aliphatic high-efficiency water reducing agent and method of producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA200910029985XA CN101508537A (en) | 2009-03-30 | 2009-03-30 | Aliphatic high-efficiency water reducing agent and method of producing the same |
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| CN101508537A true CN101508537A (en) | 2009-08-19 |
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| CNA200910029985XA Pending CN101508537A (en) | 2009-03-30 | 2009-03-30 | Aliphatic high-efficiency water reducing agent and method of producing the same |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515610A (en) * | 2011-12-05 | 2012-06-27 | 马鞍山中海新材料有限公司 | Aliphatic series high efficiency slushing agent and preparation method thereof |
| CN102515613A (en) * | 2011-12-05 | 2012-06-27 | 马鞍山中海新材料有限公司 | Method for preparing naphthalene based superplasticizer by using refined naphthalene by-product 90 naphthalene |
| CN102584084A (en) * | 2012-02-29 | 2012-07-18 | 哈尔滨工业大学强石混凝土技术开发有限责任公司 | Sulfamate water reducer and synthesizing device |
| CN102633965A (en) * | 2012-05-07 | 2012-08-15 | 昆明理工大学 | Synthetic method of aliphatic-series sulfonate high-efficiency water reducer |
| CN102765962A (en) * | 2012-07-30 | 2012-11-07 | 山东宏艺科技股份有限公司 | Macromolecular concrete foaming agent and preparation method thereof |
| CN102875050A (en) * | 2012-09-18 | 2013-01-16 | 湘潭市龙城金韶峰涂料有限公司 | Nano-organic-silica water-proofing agent and preparation method thereof |
| CN103880319A (en) * | 2013-11-19 | 2014-06-25 | 东南大学 | Chloride concrete admixture and preparation method thereof |
| CN106396456A (en) * | 2016-08-26 | 2017-02-15 | 河南科之杰新材料有限公司 | Preparation method of aliphatic powdery water reducing agent |
| CN110482900A (en) * | 2019-08-03 | 2019-11-22 | 徐州巨龙新材料科技有限公司 | A kind of retardation setting type fatty family water-reducing agent and preparation method thereof |
| CN111056760A (en) * | 2019-12-21 | 2020-04-24 | 浙江吉盛化学建材有限公司 | Aliphatic water reducer prepared from aminobenzenesulfonic acid wastewater and synthesis process thereof |
-
2009
- 2009-03-30 CN CNA200910029985XA patent/CN101508537A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515610B (en) * | 2011-12-05 | 2013-08-07 | 马鞍山中海新材料有限公司 | Aliphatic series high efficiency water reducing agent and preparation method thereof |
| CN102515613A (en) * | 2011-12-05 | 2012-06-27 | 马鞍山中海新材料有限公司 | Method for preparing naphthalene based superplasticizer by using refined naphthalene by-product 90 naphthalene |
| CN102515610A (en) * | 2011-12-05 | 2012-06-27 | 马鞍山中海新材料有限公司 | Aliphatic series high efficiency slushing agent and preparation method thereof |
| CN102515613B (en) * | 2011-12-05 | 2013-08-07 | 马鞍山中海新材料有限公司 | Method for preparing naphthalene based superplasticizer by using refined naphthalene by-product 90 naphthalene |
| CN102584084A (en) * | 2012-02-29 | 2012-07-18 | 哈尔滨工业大学强石混凝土技术开发有限责任公司 | Sulfamate water reducer and synthesizing device |
| CN102633965A (en) * | 2012-05-07 | 2012-08-15 | 昆明理工大学 | Synthetic method of aliphatic-series sulfonate high-efficiency water reducer |
| CN102765962A (en) * | 2012-07-30 | 2012-11-07 | 山东宏艺科技股份有限公司 | Macromolecular concrete foaming agent and preparation method thereof |
| CN102765962B (en) * | 2012-07-30 | 2014-06-25 | 临沂宏德新材料有限公司 | Macromolecular concrete foaming agent and preparation method thereof |
| CN102875050A (en) * | 2012-09-18 | 2013-01-16 | 湘潭市龙城金韶峰涂料有限公司 | Nano-organic-silica water-proofing agent and preparation method thereof |
| CN102875050B (en) * | 2012-09-18 | 2014-07-02 | 湘潭市龙城金韶峰涂料有限公司 | Nano-organic-silica water-proofing agent and preparation method thereof |
| CN103880319A (en) * | 2013-11-19 | 2014-06-25 | 东南大学 | Chloride concrete admixture and preparation method thereof |
| CN106396456A (en) * | 2016-08-26 | 2017-02-15 | 河南科之杰新材料有限公司 | Preparation method of aliphatic powdery water reducing agent |
| CN106396456B (en) * | 2016-08-26 | 2018-07-03 | 河南科之杰新材料有限公司 | A kind of preparation method of aliphatic powder water-reducing agent |
| CN110482900A (en) * | 2019-08-03 | 2019-11-22 | 徐州巨龙新材料科技有限公司 | A kind of retardation setting type fatty family water-reducing agent and preparation method thereof |
| CN111056760A (en) * | 2019-12-21 | 2020-04-24 | 浙江吉盛化学建材有限公司 | Aliphatic water reducer prepared from aminobenzenesulfonic acid wastewater and synthesis process thereof |
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Open date: 20090819 |