CN1030574A - High-efficient water reducer made of alkyl aryl sulfonate and aldehyde naphthalene sulfonate condensate - Google Patents

High-efficient water reducer made of alkyl aryl sulfonate and aldehyde naphthalene sulfonate condensate Download PDF

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Publication number
CN1030574A
CN1030574A CN 87104392 CN87104392A CN1030574A CN 1030574 A CN1030574 A CN 1030574A CN 87104392 CN87104392 CN 87104392 CN 87104392 A CN87104392 A CN 87104392A CN 1030574 A CN1030574 A CN 1030574A
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high efficiency
reducing agent
sulfonate
water reducing
concrete
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CN 87104392
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卢璋
胡淑珍
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Tsinghua University
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Tsinghua University
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Priority to CN 87104392 priority Critical patent/CN1030574A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/16Sulfur-containing compounds
    • C04B24/20Sulfonated aromatic compounds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

High-efficient water reducer made of alkyl aryl sulfonate and aldehyde naphthalene sulfonate condensate is the mobile admixture of a kind of raising concrete (perhaps mortar, clean slurry).It is made up of the alkyl aromatic sulfonate and the naphthalenesulfonate formaldehyde condensation compound of chemosynthesis.High efficiency water reducing agent of the present invention is compared with existing high efficiency water reducing agent, it is more to increase grout or concrete mix flowability, water-reduction is bigger, dissemination is better, thereby make grout or concrete intensity higher, also can more save cement, it has the ability that increases mobile reduction within reason in time preferably simultaneously.

Description

High-efficient water reducer made of alkyl aryl sulfonate and aldehyde naphthalene sulfonate condensate
The invention belongs to the mobile admixture of a kind of raising concrete (perhaps mortar, clean slurry).
The matrix material that concrete is made up of cement, sand, stone and water.The flowability of the fresh concrete mix of mixing system to can the normal construction cast, tamping has substantial connection, and add the water yield what with its flowability direct relation is arranged.It is many more to add water, and flowability is good more.Intensity after the concrete hardening then depends mainly on what (under situations of other factors basically identical) of water consumption, and water consumption is few more, and concrete strength is just high more.This is the factor of two kinds of adverse effects.Thereby, in general concrete works,, again suitable flowability must be arranged in order to obtain intensity preferably, so can only take certain water consumption, water consumption can't be constructed at least again.
In order to improve the concrete mix flowability, water reducer or high efficiency water reducing agent have been added, because series of physical, the chemical action of these admixtures are not increasing under the water consumption situation, the flowability of concrete mix has been improved greatly, and wherein the amplitude of Ti Gaoing is big is called high efficiency water reducing agent.
At present, the high efficiency water reducing agents that used in a large number in mass selling and the engineering on China market have (belong to naphthalenesulfonate formaldehyde condensation compound and be main component) such as NF, UNF, FDN, SN, and SM(condensate of melamine and formaldehyde) etc., result of use is all relatively good.Abroad, agate ether (naphthalenesulfonate formaldehyde condensation compound) class and melmac etc. are arranged, result of use is also relatively good.
Main purpose of the present invention is on original high efficiency water reducing agent basis, make new compound substance by chemosynthesis, this kind composition is incorporated in original high efficiency water reducing agent (naphthalenesulfonate formaldehyde condensation compound) based on suitable ratio, its diminishing, dissemination are improved with a kind of water reducer more than single, obtain a kind of more dynamical high efficiency water reducing agent that has, another object of the present invention, this weakness of utilizing it can improve mobile the variation in time of water reducer increase exactly and diminishing, thus the longer permission working hour can be provided for constructing.
The invention is characterized in, form a kind of high efficiency water reducing agent by the alkyl aromatic sulfonate and the naphthalenesulfonate formaldehyde condensation compound of chemosynthesis.Alkyl aromatic sulfonate is to comprise from C 2~C 10Alkyl and comprise the Sulfonates that benzene, naphthalene, anthracene, phenanthrene etc. are formed.Naphthalenesulfonate formaldehyde condensation compound comprise its naphthalene check figure from 2~13 low condenses and the material of high condenses.
Alkylaryl sulfonate is to make like this, get 1 part of aromatic hydrocarbons, add appropriate amount of catalysts (for example aluminum chloride etc.), the alkylating agent (for example halides, acids etc.) that at room temperature slowly adds 1 part of weight reacted about 1 hour, the sulfuric acid sulfonation that adds 1.1 parts of weight again 50~60 ℃ of following constant temperature 3 hours, (can be formed transparent aqueous solution) after the sample water dissolubility is qualified, add an amount of bases (for example sodium hydroxide) and be neutralized to neutrality, dry back product.
Preparation technology is as follows for the naphthene sulfonic acid aldehyde condensate, get the sulfuric acid that a heavy naphthalene adds 1.1 parts of weight and carried out sulfonation reaction 3 hours, add the water hydrolysis then, keep acidity more than 25% in temperature more than 125 ℃, the formaldehyde condensation that adds 0.8 part of weight again, controlled temperature adds after the aldehydes less than 100 ℃ therebetween, is warming up to 105~108 ℃, constant temperature 1-2 hour, the qualified back of product sedimentation (sinkability was less than 10mm in 1 hour) promptly is neutralized to neutrality with bases, is finished product after the drying.
With these two kinds of products in proportion thorough mixing evenly after, promptly become high efficiency water reducing agent of the present invention.
High efficiency water reducing agent of the present invention can dry powder shape be added to cement or be added in the concrete mix, and its addition content is 0.1~1.5% of a cement weight, and dosage is less than 0.1%, DeGrain, and greater than 1.5%, not only not remarkable to the flowability increase, and just unfavorable economically.General volume scope is 0.3% to 1.0%, and optimum addition content is 0.5%~0.75%, and this high efficiency water reducing agent directly is spread in the concrete mix with dry powder, after the dry powder mix is even, adds water again and stirs into mixture.
High efficiency water reducing agent of the present invention is compared with present domestic existing high efficiency water reducing agent, and it is more to increase grout or concrete mix flowability, and water-reduction is bigger, and dissemination is better.Thereby make grout or concrete intensity higher, also can more save cement, it has the ability that increases mobile reduction within reason in time preferably simultaneously.In addition, also have certain delayed coagulation, it is all better to the adaptability of more existing naphthalene sulfonate formaldehyde condensate type highly-efficient water reducers simultaneously.
The embodiment of synthesis of alkyl aromatic sulphonate
1. get the 1mol(mole) benzene adding 0.5mol haloalkane, be heated to 70 ℃, add catalyzer aluminum chloride 0.02mol, reaction is 3 hours under this temperature, add oleum 1.3mol then, keep reacting 2 hours under 75 ℃ of conditions, add sodium hydroxide again PH is maintained more than 9, through concentrating, be dried to product
Figure 871043920_IMG1
2. get the 1mol(mole) naphthalene, be heated to more than 85 ℃, add catalyst A lCl 30.02mol, add alkylating agent halo decane 0.25mol again, reaction is 3 hours under this temperature, be warming up to 100 ℃ ± 2 ℃ internal reactions again 2 hours, and washed for several times, be washed till neutrality with deionized water with an amount of 10%HCl, to add the 1.3mol vitriol oil (more than 98%) in this dehydration back material again, sulfonation more than 1130 ℃ 3 hours, add yellow soda ash to solution PH and be bordering on 9, through concentrating, be dried to product.
Figure 871043920_IMG2
3. get the 1mol(mole) anthracene, add amylalcohol 1.4mol, add catalyzer (AlCl 3, acid etc.), be heated to about 45 ℃, reacted 3 hours, continue to add 1mol sulfuric acid (oleum and vitriol oil mixture), below 75 ℃, reacted 3 hours, add ammoniacal liquor, make PH>8 of solution, concentrate, be dried to product then.
Figure 871043920_IMG4
Under the certain addition content of table 3, starch the variation of degree of mobilization only with the storage period
Storage period (branch) 0 15 30 45 60
Naphthalenesulfonate formaldehyde condensation compound 1% 240m 210m 205m 210m 210m
High efficiency water reducing agent 1% of the present invention 265m 260m 245m 233m 230m
Table 4 component A of the present invention 1To domestic existing naphthalene sulphonate formaldehyde synthesis analog high efficiency water reducing agent effect
NF FDN UNF
The degree of mobilization mm of this agent own 240 240 245
The compound back of the present invention degree of mobilization mm 270 278 275
Table 5 high efficiency water reducing agent of the present invention is to the influence (525 of cement setting time #Ordinary portland cement)
NF The present invention
Initial set (time: divide) 4∶30 6∶30
Final set (time: divide) 5∶30 8∶30

Claims (2)

1, a kind of with C 2~C 10Alkyl and comprise the alkyl aromatic sulfonate that aromatic sulphonates such as benzene, naphthalene, anthracene, phenanthrene are formed and the high efficiency water reducing agent of forming with the naphthalenesulfonate formaldehyde condensation compound of nucleome several 2~13.
2, a kind of method of synthesis of alkyl aromatic sulphonate, it is characterized in that getting a aromatic hydrocarbons and add the alkylating agent that catalyzer at room temperature slowly adds 1 part of weight, reacted 1 hour, the sulfuric acid sulfonation that adds 1.1 parts of weight again, 50~65 ℃ of following constant temperature 3 hours, after the sample water dissolubility is qualified, adds bases and be neutralized to neutrality.
CN 87104392 1987-06-25 1987-06-25 High-efficient water reducer made of alkyl aryl sulfonate and aldehyde naphthalene sulfonate condensate Withdrawn CN1030574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 87104392 CN1030574A (en) 1987-06-25 1987-06-25 High-efficient water reducer made of alkyl aryl sulfonate and aldehyde naphthalene sulfonate condensate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 87104392 CN1030574A (en) 1987-06-25 1987-06-25 High-efficient water reducer made of alkyl aryl sulfonate and aldehyde naphthalene sulfonate condensate

Publications (1)

Publication Number Publication Date
CN1030574A true CN1030574A (en) 1989-01-25

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Country Status (1)

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CN (1) CN1030574A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1036000C (en) * 1992-07-14 1997-10-01 大连理工大学 Method for producing condensation compound of methyl naphthalene sulfonic acid and formaldehyde
CN1083806C (en) * 1999-02-04 2002-05-01 中国科学院广州化学研究所 Beta-naphthalenesulfonic-acid formaldehyde condensation compound quaternary ammonium salt type additive of concrete
CN1083807C (en) * 1999-05-28 2002-05-01 中国科学院广州化学研究所 Method for modifying concrete
CN101486534B (en) * 2009-02-19 2011-09-28 浙江大学 Multifunctional cement adjustable solidification agent and preparation thereof
CN109503433A (en) * 2018-12-20 2019-03-22 江苏精禾界面科技有限公司 A kind of modified naphthalene series sulfonate and formaldehyde condensation product and its application
CN112047679A (en) * 2020-08-19 2020-12-08 南通市展成商品混凝土有限公司 Recycled concrete and preparation method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1036000C (en) * 1992-07-14 1997-10-01 大连理工大学 Method for producing condensation compound of methyl naphthalene sulfonic acid and formaldehyde
CN1083806C (en) * 1999-02-04 2002-05-01 中国科学院广州化学研究所 Beta-naphthalenesulfonic-acid formaldehyde condensation compound quaternary ammonium salt type additive of concrete
CN1083807C (en) * 1999-05-28 2002-05-01 中国科学院广州化学研究所 Method for modifying concrete
CN101486534B (en) * 2009-02-19 2011-09-28 浙江大学 Multifunctional cement adjustable solidification agent and preparation thereof
CN109503433A (en) * 2018-12-20 2019-03-22 江苏精禾界面科技有限公司 A kind of modified naphthalene series sulfonate and formaldehyde condensation product and its application
CN109503433B (en) * 2018-12-20 2021-05-25 江苏精禾界面科技有限公司 Modified naphthalene sulfonate formaldehyde condensate and application thereof
CN112047679A (en) * 2020-08-19 2020-12-08 南通市展成商品混凝土有限公司 Recycled concrete and preparation method thereof

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