CN105837738A - Polycarboxylic cationic anti-mud agent, and preparation method and application thereof - Google Patents
Polycarboxylic cationic anti-mud agent, and preparation method and application thereof Download PDFInfo
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- CN105837738A CN105837738A CN201610136882.3A CN201610136882A CN105837738A CN 105837738 A CN105837738 A CN 105837738A CN 201610136882 A CN201610136882 A CN 201610136882A CN 105837738 A CN105837738 A CN 105837738A
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- polycarboxylic
- mud agent
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- acid cation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/161—Macromolecular compounds comprising sulfonate or sulfate groups
- C04B24/163—Macromolecular compounds comprising sulfonate or sulfate groups obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
- C08F220/281—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing only one oxygen, e.g. furfuryl (meth)acrylate or 2-methoxyethyl (meth)acrylate
Abstract
The invention discloses a polycarboxylic cationic anti-mud agent, and a preparation method and application thereof, belonging to the technical field of concrete additives. According to the invention, hydroxypropyl methacrylate with poor hydrophilicity is employed to replace side-chain monomer with good hydrophilicity for synthesis of monomer with a part of cationic charges; and acrylic acid and sodium methallyl sulfonate are used as anionic adsorption monomers for synthesis of a micromolecular polymer through free radical polymerization. Experimental results show that under the condition of same mud content of aggregates, a polycarboxylate superplasticizer with the anti-mud agent has obviously improved dispersion effect, improves the initial fluidity of concrete, reduces slump loss, enables the compressive strength of concrete to be increased by 1.5 to 3 MPa, exerts good inhibitory effect on mud content and is suitable for industrial large-scale production.
Description
Technical field
The present invention relates to technical field of concrete additives, be specifically related to a kind of polycarboxylic-acid sun from
Anti-mud agent of son and its preparation method and application.
Background technology
The third generation water reducer of building material industry is the high-performance diminishing with polycarboxylic acids as representative
Agent, protects, with its high diminishing height, the excellent properties and good environmental protection characteristic collapsed and makes it enjoy building materials
The favor of industry.The while that polycarboxylate water-reducer obtaining wide variety of in concrete works, also
Expose the earth contained in some obvious defects, particularly sandstone and make poly carboxylic acid series water reducer
Performance be greatly affected, cause concrete fluidity poor, slump-loss is big.In recent years,
Along with the exhaustion of natural sand, Machine-made Sand or second-rate natural sand instead, various bone is added
The clay content of material occupies height and does not drops, and produces a very large impact poly carboxylic acid series water reducer performance, causes mixing
Solidifying soil fluidity is poor, and slump-loss is big.Under such circumstances, it is necessary to research and develop novel diminishing
Agent, or research and develop the use compounding with existing poly carboxylic acid series water reducer of some anti-mud additives, with
Eliminate or weaken the high negative effect that poly carboxylic acid series water reducer is produced of cement content, improving mixed simultaneously
The service behaviour of solidifying soil.
At present, existing a small amount of report in terms of anti-mud agent.Patent CN102617811A carries
Go out the preparation method of a kind of amphoteric ethylene polymer concrete anti-mud agent.Its preparation method
It is: utilize methacrylic acid and poly glycol monomethyl ether to carry out esterification and prepare Polyethylene Glycol
Monomethyl ether metacrylic acid ester, the most again by polyethylene glycol monomethyl ethermethacrylic acid esters, propylene
Acid is that monomer, cationic vinyl monomer and vinyl sulfonate monomers are poly-by free radical initiation
Close and prepare.Patent CN102775088A proposes a kind of resistance chamotte mould cement water reducing agent and system
Preparation Method, by by quaternary earth stabilizer, inorganic potassium salt, organophosphor antisludging agent and poly-
Carboxylic acid water reducer is compounding to be used.Both anti-mud agent are just for specific earth, and adaptive surface is the widest.
Summary of the invention
It is an object of the invention to provide a kind of polycarboxylic-acid cation anti-mud agent and preparation side thereof
Method.
For realizing object above, the present invention is achieved by the following technical programs:
A kind of polycarboxylic-acid cation anti-mud agent, is made up of the raw material of following weight portion: maleic
Dicarboxylic anhydride 40～60 parts, N, N dimethyl ethanolamine 40～90 parts, sodium chloroacetate 30～50
Part, acrylic acid 30～50 parts, Hydroxypropyl methacrylate 50～70 parts, methacrylic sulfonic acid
Sodium 10～20 parts, persulfate 1.5～4 parts, the hydrogen peroxide 1 of 30%～3 parts, acetone 140～
200 parts, VC 2～5 parts, the sodium hydrate aqueous solution 40 of 32%～80 parts, deionized water are fitted
Amount.
Preferably, it is made up of the raw material of following weight portion: maleic anhydride 49 parts, N, N bis-
Methylethanolamine 45 parts, sodium chloroacetate 47 parts, 36 parts of acrylic acid, methacrylic acid hydroxypropyl
Ester 65 parts, methylpropene sodium sulfonate 11.2 parts, persulfate 2.1 parts, the hydrogen peroxide 2.2 of 30%
Part, 150 parts of acetone, VC 2.2 parts, the sodium hydrate aqueous solution 40 of 32%～80 parts, go
Ionized water is appropriate.
Preferably, described persulfate is Ammonium persulfate. or potassium peroxydisulfate.
Preferably, described VC is pharmaceutical grade.
The preparation method of polycarboxylic-acid cation anti-mud agent, comprises the following steps:
1) maleic anhydride is dissolved in acetone, at the uniform velocity drip N, N dimethyl ethanolamine,
Control time for adding is 15-20min, keeps 5h, then heat in the range of constant temperature 10-20 DEG C
Acetone is boiled off, cooling to 65 DEG C；
2) to step 1) middle addition appropriate amount of deionized water, with sodium hydroxide solution, system pH is adjusted
Joint, to 9, adds sodium chloroacetate while stirring, react 5h under the conditions of 25-40 DEG C；
3) Hydroxypropyl methacrylate, acrylic acid, VC and methylpropene sodium sulfonate are dissolved in
In appropriate deionized water, mix homogeneously, as A liquid, separately take Ammonium persulfate., dioxygen water-soluble
In appropriate amount of deionized water, mix homogeneously, as B liquid；
4) by step 2) temperature of reaction system rise to 30-60 DEG C, be simultaneously added dropwise step 3) in
A liquid and B liquid, control A liquid time for adding at 2-3h, B liquid time for adding at 2-3.5h,
It is warming up to 60-80 DEG C after all dripping off and keeps 2-3h；
5) with sodium hydroxide solution, system pH is adjusted to 9, i.e. can get finished product.
The application of polycarboxylic-acid cation anti-mud agent, is anti-for polycarboxylic-acid cation mud agent to be replaced
The polycarboxylate water-reducer of 5%-20%, carries out compounding use.
The method have the benefit that the present invention uses hydrophilic poor Hydroxypropyl methacrylate generation
For the preferable side chain monomer of hydrophilic, synthesize a kind of monomer with partial cation electric charge,
Use acrylic acid and methylpropene sodium sulfonate as Anion-adsorption monomer, pass through radical polymerization
Molecular weight polymers has been synthesized.The experiment proved that, under conditions of aggregate clay content is identical,
The dispersion effect of the polycarboxylate water-reducer being added with the present invention anti-mud agent is remarkably reinforced, and improves coagulation
Soil initial fluidity, reduction slump-loss, concrete crushing strength raising 1.5～3MPa, right
Clay content has good inhibiting effect, production in enormous quantities suitable for industrialized.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below will knot
Close the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely retouched
State, it is clear that described embodiment is a part of embodiment of the present invention rather than whole realities
Execute example.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
Embodiment 1:
A kind of polycarboxylic-acid cation anti-mud agent, is made up of the raw material of following weight portion: maleic
Dicarboxylic anhydride 49 parts, N, N dimethyl ethanolamine 45 parts, sodium chloroacetate 47 parts, acrylic acid 36
Part, Hydroxypropyl methacrylate 65 parts, methylpropene sodium sulfonate 11.2 parts, Ammonium persulfate. 2.1
Part, the hydrogen peroxide 2.2 parts of 30%, 150 parts of acetone, VC 2.2 parts, the sodium hydroxide of 32%
Aqueous solution 50 parts, deionized water are appropriate.
The preparation method of polycarboxylic-acid cation anti-mud agent, comprises the following steps:
1) maleic anhydride is dissolved in acetone, at the uniform velocity drip N, N dimethyl ethanolamine,
Control time for adding is 20min, keeps 5h, be then heated to 65 DEG C in the range of constant temperature 10 DEG C
Boil off acetone, cooling；
2) to step 1) 200 parts of deionized waters of middle addition, with sodium hydroxide solution by system pH
It is adjusted to 9, while stirring, adds sodium chloroacetate, under the conditions of 30 DEG C, react 5h；
3) Hydroxypropyl methacrylate, acrylic acid, VC and methylpropene sodium sulfonate are dissolved in
In the deionized water of 100 parts, mix homogeneously, as A liquid, separately take Ammonium persulfate., hydrogen peroxide
Being dissolved in 120 parts of deionized waters, mix homogeneously, as B liquid；
4) by step 2) temperature of reaction system rise to 50 DEG C, be simultaneously added dropwise step 3) in
A liquid and B liquid, control A liquid time for adding at 3h, B liquid time for adding at 3.5h, all drip
It is warming up to 80 DEG C after complete and keeps 2h；
5) with sodium hydroxide solution, system pH is adjusted to 9, i.e. can get finished product.
The application of polycarboxylic-acid cation anti-mud agent, is anti-for polycarboxylic-acid cation mud agent to be replaced
The polycarboxylate water-reducer of 9%, carries out compounding use.
Embodiment 2:
A kind of polycarboxylic-acid cation anti-mud agent, is made up of the raw material of following weight portion: maleic
Dicarboxylic anhydride 49 parts, N, N dimethyl ethanolamine 90 parts, sodium chloroacetate 50 parts, acrylic acid 40
Part, Hydroxypropyl methacrylate 60 parts, methylpropene sodium sulfonate 14 parts, Ammonium persulfate. 3.1
Part, the hydrogen peroxide 1.2 parts of 30%, 150 parts of acetone, VC 2 parts, the sodium hydroxide water of 32%
Solution 55 parts, deionized water are appropriate.
The preparation method of polycarboxylic-acid cation anti-mud agent, comprises the following steps:
1) maleic anhydride is dissolved in acetone, at the uniform velocity drip N, N dimethyl ethanolamine,
Control time for adding is 20min, keeps 5h, be then heated to 65 DEG C in the range of constant temperature 10 DEG C
Boil off acetone, cooling；
2) to step 1) 200 parts of deionized waters of middle addition, with sodium hydroxide solution by system pH
It is adjusted to 9, while stirring, adds sodium chloroacetate, under the conditions of 30 DEG C, react 5h；
3) Hydroxypropyl methacrylate, acrylic acid, VC and methylpropene sodium sulfonate are dissolved in
In 100 parts of deionized waters, mix homogeneously, as A liquid, separately take Ammonium persulfate., dioxygen water-soluble
In 120 parts of deionized waters, mix homogeneously, as B liquid；
4) by step 2) temperature of reaction system rise to 50 DEG C, be simultaneously added dropwise step 3) in
A liquid and B liquid, control A liquid time for adding at 2h, B liquid time for adding at 2.5h, all drip
It is warming up to 80 DEG C after complete and keeps 3h；
5) with sodium hydroxide solution, system pH is adjusted to 9, i.e. can get finished product.
The application of polycarboxylic-acid cation anti-mud agent, is anti-for polycarboxylic-acid cation mud agent to be replaced
The polycarboxylate water-reducer of 15%, carries out compounding use.
Embodiment 3:
A kind of polycarboxylic-acid cation anti-mud agent, is made up of the raw material of following weight portion: maleic two
60 parts of anhydride, N, N dimethyl ethanolamine 50 parts, sodium chloroacetate 50 parts, acrylic acid 40
Part, Hydroxypropyl methacrylate 70 parts, methylpropene sodium sulfonate 10 parts, potassium peroxydisulfate 3.5
Part, the hydrogen peroxide 2 parts of 30%, 200 parts of acetone, VC 2 parts, 32% sodium hydroxide water-soluble
Liquid 56 parts, deionized water are appropriate.
The preparation method of polycarboxylic-acid cation anti-mud agent, comprises the following steps:
1) maleic anhydride is dissolved in acetone, at the uniform velocity drip N, N dimethyl ethanolamine,
Control time for adding is 15min, keeps 5h, be then heated to 65 DEG C in the range of constant temperature 15 DEG C
Boil off acetone, cooling；
2) to step 1) middle addition appropriate amount of deionized water, with sodium hydroxide solution, system pH is adjusted
Joint, to 9, adds sodium chloroacetate while stirring, react 5h under the conditions of 35 DEG C；
3) Hydroxypropyl methacrylate, acrylic acid, VC and methylpropene sodium sulfonate are dissolved in
In appropriate deionized water, mix homogeneously, as A liquid, separately take Ammonium persulfate., dioxygen water-soluble
In appropriate amount of deionized water, mix homogeneously, as B liquid；
4) by step 2) temperature of reaction system rise to 60 DEG C, be simultaneously added dropwise step 3) in
A liquid and B liquid, control A liquid time for adding at 2.5h, B liquid time for adding at 2.5h, all
It is warming up to 80 DEG C after dripping off and keeps 2.5h；
5) with sodium hydroxide solution, system pH is adjusted to 9, i.e. can get finished product.
The application of polycarboxylic-acid cation anti-mud agent, is anti-for polycarboxylic-acid cation mud agent to be replaced
The polycarboxylate water-reducer of 20%, carries out compounding use.
Embodiment 4:
A kind of polycarboxylic-acid cation anti-mud agent, is made up of the raw material of following weight portion: maleic two
40 parts of anhydride, N, N dimethyl ethanolamine 90 parts, sodium chloroacetate 30 parts, acrylic acid 50
Part, Hydroxypropyl methacrylate 50 parts, methylpropene sodium sulfonate 15 parts, persulfate potassium 1.5
Part, the hydrogen peroxide 3 parts of 30%, 140 parts of acetone, VC 3.5 parts, the sodium hydroxide water of 32%
Solution 70 parts, deionized water are appropriate.
The preparation method of polycarboxylic-acid cation anti-mud agent, comprises the following steps:
1) maleic anhydride is dissolved in acetone, at the uniform velocity drip N, N dimethyl ethanolamine,
Control time for adding is 20min, keeps 5h, be then heated to 65 DEG C in the range of constant temperature 20 DEG C
Boil off acetone, cooling；
2) to step 1) middle addition appropriate amount of deionized water, with sodium hydroxide solution, system pH is adjusted
Joint, to 9, adds sodium chloroacetate while stirring, react 5h under the conditions of 30 DEG C；
3) Hydroxypropyl methacrylate, acrylic acid, VC and methylpropene sodium sulfonate are dissolved in
In appropriate deionized water, mix homogeneously, as A liquid, separately take Ammonium persulfate., dioxygen water-soluble
In appropriate amount of deionized water, mix homogeneously, as B liquid；
4) by step 2) temperature of reaction system rise to 40 DEG C, be simultaneously added dropwise step 3) in
A liquid and B liquid, control A liquid time for adding at 3h, B liquid time for adding at 3.5h, all drip
It is warming up to 60 DEG C after complete and keeps 3h；
5) with sodium hydroxide solution, system pH is adjusted to 9, i.e. can get finished product.
The application of polycarboxylic-acid cation anti-mud agent, is anti-for polycarboxylic-acid cation mud agent to be replaced
The polycarboxylate water-reducer of 5%, carries out compounding use.
Embodiment 5:
A kind of polycarboxylic-acid cation anti-mud agent, is made up of the raw material of following weight portion: maleic
Dicarboxylic anhydride 55 parts, N, N dimethyl ethanolamine 70 parts, sodium chloroacetate 45 parts, acrylic acid 40
Part, Hydroxypropyl methacrylate 65 parts, methylpropene sodium sulfonate 14 parts, Ammonium persulfate. 2.5
Part, the hydrogen peroxide 2.5 parts of 30%, 160 parts of acetone, VC 3 parts, the sodium hydroxide water of 32%
Solution 60 parts, deionized water are appropriate.
The preparation method of polycarboxylic-acid cation anti-mud agent, comprises the following steps:
1) maleic anhydride is dissolved in acetone, at the uniform velocity drip N, N dimethyl ethanolamine,
Control time for adding is 15min, keeps 5h, be then heated to 65 DEG C in the range of constant temperature 15 DEG C
Boil off acetone, cooling；
2) to step 1) middle addition appropriate amount of deionized water, with sodium hydroxide solution, system pH is adjusted
Joint, to 9, adds sodium chloroacetate while stirring, react 5h under the conditions of 40 DEG C；
3) Hydroxypropyl methacrylate, acrylic acid, VC and methylpropene sodium sulfonate are dissolved in
In appropriate amount of deionized water, mix homogeneously, as A liquid, separately take Ammonium persulfate., hydrogen peroxide is dissolved in
In appropriate amount of deionized water, mix homogeneously, as B liquid；
4) by step 2) temperature of reaction system rise to 55 DEG C, be simultaneously added dropwise step 3) in
A liquid and B liquid, control A liquid time for adding at 2h, B liquid time for adding at 3h, all drip off
After be warming up to 70 DEG C and keep 2.5h；
5) with sodium hydroxide solution, system pH is adjusted to 9, i.e. can get finished product.
The application of polycarboxylic-acid cation anti-mud agent, is anti-for polycarboxylic-acid cation mud agent to be replaced
The polycarboxylate water-reducer of 20%, carries out compounding use.
Case study on implementation:
Polycarboxylic-acid cation anti-mud agent Example 1 and Example 2 of the present invention prepared is with poly-
Carboxylic acid water reducer compounds, and obtains the compounding water reducer with anti-mud effect, and detects its performance ginseng
Number, implementation result experiment clean slurry test is according to GB GB/T 8077-2012 " concrete admixture
Uniformity test method " carry out, mix in montmorillonite, replace the cement of respective quality.Mortar is surveyed
Examination is carried out according to GB GB/T 19671-1999 " Test method for strength of hydraulic cement mortar ", concrete
Performance test is with reference to GB GB/T 50080-2002 " normal concrete mixture performance test side
Method " carry out.
The anti-mud agent that embodiment 1 prepares is replaced respectively the polycarboxylate water-reducer of 9% and 15%, compiles
Number it is respectively No. 1, No. 2, the anti-mud agent that embodiment 2 prepares is replaced 9% and 15% respectively
Polycarboxylate water-reducer, numbering is respectively No. 3 and No. 4, and experimental result is as follows:
1, paste flowing degree experiment
Table 1
2, additional montmorillonite water reducer Mortar'S Flowability experiment
Table 2
3, concrete experiments
Concrete mix is as follows:
Table 3
Test result is as follows:
Table 4
More than test result indicate that, under conditions of aggregate clay content is identical, anti-mud agent and polycarboxylic acids
Compositional liquor water reducer, its dispersion effect is substantially better than common polycarboxylate water-reducer, concrete
The slump keeps preferable.
It should be noted that in this article, the relational terms of such as first and second or the like is only
Only it is used for separating an entity or operation with another entity or operating space, and not necessarily
Require or imply and there is the relation of any this reality or suitable between these entities or operation
Sequence.And, term " includes ", " comprising " or its any other variant are intended to nonexcludability
Comprise, so that include the process of a series of key element, method, article or equipment not only
Including those key elements, but also include other key elements being not expressly set out, or also include
The key element intrinsic for this process, method, article or equipment.There is no more restriction
In the case of, statement " including ... " key element limited, it is not excluded that including described wanting
Process, method, article or the equipment of element there is also other identical element.
Above example only in order to technical scheme to be described, is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, those of ordinary skill in the art
It is understood that the technical scheme described in foregoing embodiments still can be modified by it,
Or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, not
The essence making appropriate technical solution departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a polycarboxylic-acid cation anti-mud agent, it is characterised in that former by following weight portion
Material is made: maleic anhydride 40～60 parts, N, N dimethyl ethanolamine 40～90 parts, chlorine
Sodium acetate 30～50 parts, acrylic acid 30～50 parts, Hydroxypropyl methacrylate 50～70 parts,
Methylpropene sodium sulfonate 10～20 parts, persulfate 1.5～4 parts, the hydrogen peroxide 1～3 of 30%
Part, acetone 140～200 parts, VC 2～5 parts, the sodium hydrate aqueous solution 40～80 of 32%
Part, deionized water appropriate.
2. polycarboxylic-acid cation anti-mud agent as claimed in claim 1, it is characterised in that by
The raw material of following weight portion is made: maleic anhydride 49 parts, N, N dimethyl ethanolamine 45
Part, sodium chloroacetate 47 parts, 36 parts of acrylic acid, Hydroxypropyl methacrylate 65 parts, methyl
Sodium allylsulfonate 11.2 parts, persulfate 2.1 parts, the hydrogen peroxide 2.2 parts of 30%, acetone 150
Part, VC 2.2 parts, the sodium hydrate aqueous solution 40 of 32%～80 parts, deionized water are appropriate.
3. polycarboxylic-acid cation anti-mud agent as claimed in claim 2, it is characterised in that institute
Stating persulfate is Ammonium persulfate. or potassium peroxydisulfate.
4. polycarboxylic-acid cation anti-mud agent as claimed in claim 2, it is characterised in that institute
Stating VC is pharmaceutical grade.
5. the preparation method of the polycarboxylic-acid cation anti-mud agent as described in claim 1-4 is arbitrary,
It is characterized in that, comprise the following steps:
1) maleic anhydride is dissolved in acetone, at the uniform velocity drip N, N dimethyl ethanolamine,
Control time for adding is 15-20min, keeps 5h, then heat in the range of constant temperature 10-20 DEG C
Acetone is boiled off, cooling to 65 DEG C；
2) to step 1) middle addition appropriate amount of deionized water, with sodium hydroxide solution, system pH is adjusted
Joint, to 9, adds sodium chloroacetate while stirring, react 5h under the conditions of 25-40 DEG C；
3) Hydroxypropyl methacrylate, acrylic acid, VC and methylpropene sodium sulfonate are dissolved in
In appropriate deionized water, mix homogeneously, as A liquid, separately take Ammonium persulfate., dioxygen water-soluble
In appropriate amount of deionized water, mix homogeneously, as B liquid；
4) by step 2) temperature of reaction system rise to 30-60 DEG C, be simultaneously added dropwise step 3) in
A liquid and B liquid, control A liquid time for adding at 2-3h, B liquid time for adding at 2-3.5h,
It is warming up to 60-80 DEG C after all dripping off and keeps 2-3h；
5) with sodium hydroxide solution, system pH is adjusted to 9, i.e. can get finished product.
6. the application of polycarboxylic-acid cation anti-mud agent as claimed in claim 1, its feature exists
In, it is the polycarboxylate water-reducer that anti-for polycarboxylic-acid cation mud agent is replaced 5%-20%, carries out multiple
Join use.
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| CN106478896A (en) * | 2016-10-31 | 2017-03-08 | 科之杰新材料集团有限公司 | A kind of preparation method of comprehensive polycarboxylate water-reducer |
| CN109575260A (en) * | 2018-11-30 | 2019-04-05 | 中建西部建设股份有限公司 | A kind of quaternary agent on crack resistance of concrete mud agent and preparation method thereof |
| CN110845663A (en) * | 2019-12-06 | 2020-02-28 | 佛山市华轩新材料有限公司 | Concrete anti-mud agent |
| CN112960935A (en) * | 2021-02-25 | 2021-06-15 | 贵州天威建材科技有限责任公司 | Special mud-resistant sacrificial agent for polycarboxylic acid water reducer and preparation method thereof |
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| CN102617811A (en) * | 2012-03-21 | 2012-08-01 | 陕西科技大学 | Preparation method of amphiprotic vinyl polymer concrete mud-resistant agent |
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| CN104177543A (en) * | 2014-08-18 | 2014-12-03 | 武汉格瑞林葛店混凝土外加剂有限公司 | Concrete anti-mud agent and preparation method thereof |
| CN105085822A (en) * | 2015-08-07 | 2015-11-25 | 科之杰新材料集团有限公司 | Sludge-proof type polycarboxylate water-reducer and normal temperature preparing method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106478896A (en) * | 2016-10-31 | 2017-03-08 | 科之杰新材料集团有限公司 | A kind of preparation method of comprehensive polycarboxylate water-reducer |
| CN106478896B (en) * | 2016-10-31 | 2019-07-19 | 科之杰新材料集团有限公司 | A kind of preparation method of comprehensive polycarboxylate water-reducer |
| CN109575260A (en) * | 2018-11-30 | 2019-04-05 | 中建西部建设股份有限公司 | A kind of quaternary agent on crack resistance of concrete mud agent and preparation method thereof |
| CN110845663A (en) * | 2019-12-06 | 2020-02-28 | 佛山市华轩新材料有限公司 | Concrete anti-mud agent |
| CN112960935A (en) * | 2021-02-25 | 2021-06-15 | 贵州天威建材科技有限责任公司 | Special mud-resistant sacrificial agent for polycarboxylic acid water reducer and preparation method thereof |
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| CN105837738B (en) | 2018-04-24 |
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