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CN109250945A - A kind of polycarboxylic acid water reducing agent - Google Patents

A kind of polycarboxylic acid water reducing agent Download PDF

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Publication number
CN109250945A
CN109250945A CN201810390090.8A CN201810390090A CN109250945A CN 109250945 A CN109250945 A CN 109250945A CN 201810390090 A CN201810390090 A CN 201810390090A CN 109250945 A CN109250945 A CN 109250945A
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CN
China
Prior art keywords
parts
reducing agent
water reducing
polycarboxylic acid
acid water
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Pending
Application number
CN201810390090.8A
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Chinese (zh)
Inventor
王亚军
卢祎
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JIANGSU BAIRUIJI NEW MATERIAL CO Ltd
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JIANGSU BAIRUIJI NEW MATERIAL CO Ltd
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Priority to CN201810390090.8A priority Critical patent/CN109250945A/en
Publication of CN109250945A publication Critical patent/CN109250945A/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
    • C04B24/161Macromolecular compounds comprising sulfonate or sulfate groups
    • C04B24/163Macromolecular compounds comprising sulfonate or sulfate groups obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/165Macromolecular compounds comprising sulfonate or sulfate groups obtained by reactions only involving carbon-to-carbon unsaturated bonds containing polyether side chains
    • 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
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/06Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
    • C08F283/065Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
    • 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
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302Water reducers

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

The present invention provides a kind of polycarboxylic acid water reducing agent, it includes following component by weight percentage: unsaturated polyoxyethylene ether 14-21 parts, 2.8-3.5 parts of slow release high-efficiency water-reducing agent, 3.8-12.5 parts of lauryl sodium sulfate, 5.5-8.5 parts of acrylic acid, 5-10 parts of cross-linking monomer, 11-26 parts of diethanol monoisopropanolamine, 8-20 parts of sodium gluconate, 1.6-3.0 parts of maleic anhydride, 8-16 parts of mercaptopropionic acid, 1-2 parts of N- dimethyl cyclohexyl amine, 3.5-7.5 parts of carboxylate, 7-9 parts of methylpropene sodium sulfonate, 8-13 parts of sodium hypophosphite, 3-5 parts of initiator, 6-12 parts of preservative.The water-reducing agent that the production method of high-performance water reducing agent of the invention provides can reduce the water being added in concrete construction, be conducive to the setting time for shortening concrete, and improve the intensity of concrete.

Description

A kind of polycarboxylic acid water reducing agent
Technical field
The present invention relates to a kind of concrete additive technical field more particularly to a kind of polycarboxylic acid water reducing agents.
Background technique
Concrete is the construction material that the realm of building construction often needs to use.In the actual construction process, in order to enable Each component is sufficiently mixed in concrete, is needed for concrete to be stirred with a certain amount of water and is mixed.Due to concrete middle reaches The water of amorph is less, therefore usually requires the more water of addition and mixed.It is coagulated however, excessive water is added and increases concrete Solid time.Therefore, in view of the above-mentioned problems, it is necessary to propose further solution.
Summary of the invention
The purpose of the present invention is to provide a kind of polycarboxylic acid water reducing agents, to overcome the deficiencies in the prior art.
For achieving the above object, the present invention provides a kind of polycarboxylic acid water reducing agent, by weight percentage includes such as Lower component: unsaturated polyoxyethylene ether 14-21 parts, 2.8-3.5 parts of slow release high-efficiency water-reducing agent, lauryl sodium sulfate 3.8- 12.5 parts, 5.5-8.5 parts of acrylic acid, 5-10 parts of cross-linking monomer, 11-26 parts of diethanol monoisopropanolamine, sodium gluconate 8-20 Part, 1.6-3.0 parts of maleic anhydride, 8-16 parts of mercaptopropionic acid, 1-2 parts of N- dimethyl cyclohexyl amine, 3.5-7.5 parts of carboxylate, 7-9 parts of methylpropene sodium sulfonate, 8-13 parts of sodium hypophosphite, 3-5 parts of initiator, 6-12 parts of preservative.
As the improvement of polycarboxylic acid water reducing agent of the invention, the polycarboxylic acid water reducing agent includes such as by weight percentage Lower component: 15 parts of unsaturated polyoxyethylene ether, 2.8 parts of slow release high-efficiency water-reducing agent, 4.8 parts of lauryl sodium sulfate, acrylic acid 6.5 parts, 7.5 parts of cross-linking monomer, 17.5 parts of diethanol monoisopropanolamine, 16.5 parts of sodium gluconate, maleic anhydride 2.8 Part, 8.9 parts of mercaptopropionic acid, 1.5 parts of N- dimethyl cyclohexyl amine, 5.5 parts of carboxylate, 8.5 parts of methylpropene sodium sulfonate, sodium hypophosphite 10.5 parts, 4.5 parts of initiator, 8.5 parts of preservative.
As the improvement of polycarboxylic acid water reducing agent of the invention, the polycarboxylic acid water reducing agent includes such as by weight percentage Lower component: 20 parts of unsaturated polyoxyethylene ether, 3.5 parts of slow release high-efficiency water-reducing agent, 12.5 parts of lauryl sodium sulfate, acrylic acid 8.5 parts, 10 parts of cross-linking monomer, diethanol monoisopropanolamine 11-26,8 parts of sodium gluconate, 2.6 parts of maleic anhydride, sulfydryl 8 parts of propionic acid, 6 parts of carboxylate, 7.5 parts of methylpropene sodium sulfonate, 11.5 parts of sodium hypophosphite, causes 1.5 parts of N- dimethyl cyclohexyl amine 5 parts of agent, 6 parts of preservative.
As the improvement of polycarboxylic acid water reducing agent of the invention, the polycarboxylic acid water reducing agent includes such as by weight percentage Lower component: 18 parts of unsaturated polyoxyethylene ether, 3.3 parts of slow release high-efficiency water-reducing agent, 16.5 parts of lauryl sodium sulfate, acrylic acid 7.2 parts, 8.5 parts of cross-linking monomer, 17.5 parts of diethanol monoisopropanolamine, 17.5 parts of sodium gluconate, maleic anhydride 2.8 Part, 8.9 parts of mercaptopropionic acid, 1.5 parts of N- dimethyl cyclohexyl amine, 5.5 parts of carboxylate, 8.5 parts of methylpropene sodium sulfonate, sodium hypophosphite 10.5 parts, 4.4 parts of initiator, 11.5 parts of preservative.
As the improvement of polycarboxylic acid water reducing agent of the invention, the polycarboxylic acid water reducing agent also wraps by weight percentage It includes: 1.5-2.0 parts of sodium formaldehyde sulphoxylates, 2-3.5 parts of modified starch ethers.
As the improvement of polycarboxylic acid water reducing agent of the invention, the polycarboxylic acid water reducing agent also wraps by weight percentage It includes: 1.8 parts of sodium formaldehyde sulphoxylates, 2.5 parts of modified starch ethers.
As the improvement of polycarboxylic acid water reducing agent of the invention, the polycarboxylic acid water reducing agent also wraps by weight percentage It includes: 6-19 parts of ethylene glycol, 4-9 parts of maleic acid.
As the improvement of polycarboxylic acid water reducing agent of the invention, the polycarboxylic acid water reducing agent also wraps by weight percentage It includes: 7 parts of ethylene glycol, 8 parts of maleic acid.
As the improvement of polycarboxylic acid water reducing agent of the invention, the production method of the polycarboxylic acid water reducing agent includes as follows Step:
S1, unsaturated 14-21 parts of polyoxyethylene ether, 2.8-3.5 parts of slow release high-efficiency water-reducing agent, dodecyl sulphate are provided 3.8-12.5 parts of sodium, 5.5-8.5 parts of acrylic acid, 5-10 parts of cross-linking monomer, 11-26 parts of diethanol monoisopropanolamine, gluconic acid 8-20 parts of sodium, above-mentioned component is mixed under the action of initiator and preservative, obtains the first intermediate product;
S2,1-2 parts of N- dimethyl cyclohexyl amine, 3.5-7.5 parts of carboxylate, 7-9 parts of methylpropene sodium sulfonate, hypophosphorous acid are provided 8-13 parts of sodium, 1.6-3.0 parts of maleic anhydride, 8-16 parts of mercaptopropionic acid, by above-mentioned component initiator and preservative work With lower mixing, the second intermediate product is obtained, the second intermediate product is mixed with the first intermediate product, obtains polycarboxylic acids of the invention Type water-reducing agent.
Compared with prior art, the beneficial effects of the present invention are: the production method of high-performance water reducing agent of the invention provides Water-reducing agent can reduce the water being added in concrete construction, be conducive to the setting time for shortening concrete, and improve The intensity of concrete.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in detail, but it should be stated that, these embodiment party Formula is not limitation of the present invention, those of ordinary skill in the art according to these embodiments made by function, method or knot Equivalent transformation or substitution on structure, all belong to the scope of protection of the present invention within.
The present invention provides a kind of polycarboxylic acid water reducing agent, by weight percentage includes following component: unsaturated polyoxy second 14-21 parts of alkene ether, 2.8-3.5 parts of slow release high-efficiency water-reducing agent, 3.8-12.5 parts of lauryl sodium sulfate, acrylic acid 5.5-8.5 Part, 5-10 parts of cross-linking monomer, 11-26 parts of diethanol monoisopropanolamine, 8-20 parts of sodium gluconate, maleic anhydride 1.6- 3.0 parts, 8-16 parts of mercaptopropionic acid, 1-2 parts of N- dimethyl cyclohexyl amine, 3.5-7.5 parts of carboxylate, 7-9 parts of methylpropene sodium sulfonate, 8-13 parts of sodium hypophosphite, 3-5 parts of initiator, 6-12 parts of preservative.
In addition, the polycarboxylic acid water reducing agent is by weight percentage further include: 1.5-2.0 parts of sodium formaldehyde sulphoxylates, 2-3.5 part modified starch ether.Preferably, the polycarboxylic acid water reducing agent includes: that 1.8 parts of formaldehyde close sulphoxylic acid by weight percentage Hydrogen sodium, 2.5 parts of modified starch ethers.The polycarboxylic acid water reducing agent is by weight percentage further include: 6-19 parts of ethylene glycol, maleic acid 4-9 parts.Preferably, the polycarboxylic acid water reducing agent includes: 7 parts of ethylene glycol, 8 parts of maleic acid by weight percentage.
Polycarboxylic acid water reducing agent of the invention is illustrated combined with specific embodiments below.
Embodiment 1
The polycarboxylic acid water reducing agent includes following component by weight percentage: 15 parts of unsaturated polyoxyethylene ether, sustained release 2.8 parts of type high efficiency water reducing agent, 4.8 parts of lauryl sodium sulfate, 6.5 parts of acrylic acid, 7.5 parts of cross-linking monomer, diethanol list isopropyl 17.5 parts of hydramine, 16.5 parts of sodium gluconate, 2.8 parts of maleic anhydride, 8.9 parts of mercaptopropionic acid, N- dimethyl cyclohexyl amine 1.5 Part, 5.5 parts of carboxylate, 8.5 parts of methylpropene sodium sulfonate, 10.5 parts of sodium hypophosphite, 4.5 parts of initiator, 8.5 parts of preservative.
Above-mentioned polycarboxylic acid water reducing agent is prepared as follows:
S1, unsaturated 15 parts of polyoxyethylene ether, 2.8 parts of slow release high-efficiency water-reducing agent, lauryl sodium sulfate 4.8 are provided Part, 6.5 parts of acrylic acid, 7.5 parts of cross-linking monomer, 17.5 parts of diethanol monoisopropanolamine, 16.5 parts of sodium gluconate, by above-mentioned group Part mixes under the action of initiator and preservative, obtains the first intermediate product;
S2,2.8 parts of maleic anhydride, 8.9 parts of mercaptopropionic acid, 1.5 parts of N- dimethyl cyclohexyl amine, carboxylate 5.5 are provided Part, 8.5 parts of methylpropene sodium sulfonate, 10.5 parts of sodium hypophosphite, above-mentioned component is mixed under the action of initiator and preservative, The second intermediate product is obtained, the second intermediate product is mixed with the first intermediate product, obtains polycarboxylic acid water reducing agent of the invention.
Embodiment 2
The polycarboxylic acid water reducing agent includes following component by weight percentage: 20 parts of unsaturated polyoxyethylene ether, sustained release 3.5 parts of type high efficiency water reducing agent, 12.5 parts of lauryl sodium sulfate, 8.5 parts of acrylic acid, 10 parts of cross-linking monomer, diethanol list isopropyl Hydramine 11-26,8 parts of sodium gluconate, 2.6 parts of maleic anhydride, 8 parts of mercaptopropionic acid, 1.5 parts of N- dimethyl cyclohexyl amine, carboxylic 6 parts of acid esters, 7.5 parts of methylpropene sodium sulfonate, 11.5 parts of sodium hypophosphite, 5 parts of initiator, 6 parts of preservative.
Above-mentioned polycarboxylic acid water reducing agent is prepared as follows:
S1, unsaturated 20 parts of polyoxyethylene ether, 3.5 parts of slow release high-efficiency water-reducing agent, lauryl sodium sulfate 12.5 are provided Part, 8.5 parts of acrylic acid, 10 parts of cross-linking monomer, diethanol monoisopropanolamine 11-26,8 parts of sodium gluconate, above-mentioned component is existed It is mixed under the action of initiator and preservative, obtains the first intermediate product;
S2,2.6 parts of maleic anhydride, 8 parts of mercaptopropionic acid, 1.5 parts of N- dimethyl cyclohexyl amine, 6 parts of carboxylate, first are provided 7.5 parts of base sodium allylsulfonate, 11.5 parts of sodium hypophosphite mix above-mentioned component under the action of initiator and preservative, obtain Second intermediate product is mixed with the first intermediate product, obtains polycarboxylic acid water reducing agent of the invention by the second intermediate product.
Embodiment 3
The polycarboxylic acid water reducing agent includes following component by weight percentage: 18 parts of unsaturated polyoxyethylene ether, sustained release 3.3 parts of type high efficiency water reducing agent, 16.5 parts of lauryl sodium sulfate, 7.2 parts of acrylic acid, 8.5 parts of cross-linking monomer, diethanol list isopropyl 17.5 parts of hydramine, 17.5 parts of sodium gluconate, 2.8 parts of maleic anhydride, 8.9 parts of mercaptopropionic acid, N- dimethyl cyclohexyl amine 1.5 Part, 5.5 parts of carboxylate, 8.5 parts of methylpropene sodium sulfonate, 10.5 parts of sodium hypophosphite, 4.4 parts of initiator, 11.5 parts of preservative.
Above-mentioned polycarboxylic acid water reducing agent is prepared as follows:
S1, unsaturated 18 parts of polyoxyethylene ether, 3.3 parts of slow release high-efficiency water-reducing agent, lauryl sodium sulfate 16.5 are provided Part, 7.2 parts of acrylic acid, 8.5 parts of cross-linking monomer, 17.5 parts of diethanol monoisopropanolamine, 17.5 parts of sodium gluconate, by above-mentioned group Part mixes under the action of initiator and preservative, obtains the first intermediate product;
S2,2.8 parts of maleic anhydride, 8.9 parts of mercaptopropionic acid, 1.5 parts of N- dimethyl cyclohexyl amine, carboxylate 5.5 are provided Part, 8.5 parts of methylpropene sodium sulfonate, 10.5 parts of sodium hypophosphite, above-mentioned component is mixed under the action of initiator and preservative, The second intermediate product is obtained, the second intermediate product is mixed with the first intermediate product, obtains polycarboxylic acid water reducing agent of the invention.
In conclusion the water-reducing agent that the production method of high-performance water reducing agent of the invention provides can reduce concrete construction The water being added in the process is conducive to the setting time for shortening concrete, and improves the intensity of concrete.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (9)

1. a kind of polycarboxylic acid water reducing agent, which is characterized in that the polycarboxylic acid water reducing agent includes such as the following group by weight percentage Point:
Unsaturated polyoxyethylene ether 14-21 parts,
2.8-3.5 parts of slow release high-efficiency water-reducing agent,
3.8-12.5 parts of lauryl sodium sulfate,
5.5-8.5 parts of acrylic acid,
5-10 parts of cross-linking monomer,
11-26 parts of diethanol monoisopropanolamine,
8-20 parts of sodium gluconate,
1.6-3.0 parts of maleic anhydride,
8-16 parts of mercaptopropionic acid,
1-2 parts of N- dimethyl cyclohexyl amine,
3.5-7.5 parts of carboxylate,
7-9 parts of methylpropene sodium sulfonate,
8-13 parts of sodium hypophosphite,
3-5 parts of initiator,
6-12 parts of preservative.
2. polycarboxylic acid water reducing agent according to claim 1, which is characterized in that the polycarboxylic acid water reducing agent by weight hundred Divide than including following component: 15 parts of unsaturated polyoxyethylene ether, 2.8 parts of slow release high-efficiency water-reducing agent, lauryl sodium sulfate 4.8 Part, 6.5 parts of acrylic acid, 7.5 parts of cross-linking monomer, 17.5 parts of diethanol monoisopropanolamine, 16.5 parts of sodium gluconate, maleic two 2.8 parts of acid anhydrides, 8.9 parts of mercaptopropionic acid, 1.5 parts of N- dimethyl cyclohexyl amine, 5.5 parts of carboxylate, 8.5 parts of methylpropene sodium sulfonate, 10.5 parts of sodium hypophosphite, 4.5 parts of initiator, 8.5 parts of preservative.
3. polycarboxylic acid water reducing agent according to claim 1, which is characterized in that the polycarboxylic acid water reducing agent by weight hundred Divide than including following component: 20 parts of unsaturated polyoxyethylene ether, 3.5 parts of slow release high-efficiency water-reducing agent, lauryl sodium sulfate 12.5 parts, 8.5 parts of acrylic acid, 10 parts of cross-linking monomer, diethanol monoisopropanolamine 11-26,8 parts of sodium gluconate, maleic two 2.6 parts of acid anhydrides, 8 parts of mercaptopropionic acid, 1.5 parts of N- dimethyl cyclohexyl amine, 6 parts of carboxylate, 7.5 parts of methylpropene sodium sulfonate, secondary phosphorus 11.5 parts of sour sodium, 5 parts of initiator, 6 parts of preservative.
4. polycarboxylic acid water reducing agent according to claim 1, which is characterized in that the polycarboxylic acid water reducing agent by weight hundred Divide than including following component: 18 parts of unsaturated polyoxyethylene ether, 3.3 parts of slow release high-efficiency water-reducing agent, lauryl sodium sulfate 16.5 parts, 7.2 parts of acrylic acid, 8.5 parts of cross-linking monomer, 17.5 parts of diethanol monoisopropanolamine, 17.5 parts of sodium gluconate, suitable fourth 2.8 parts of enedioic acid acid anhydride, 8.9 parts of mercaptopropionic acid, 1.5 parts of N- dimethyl cyclohexyl amine, 5.5 parts of carboxylate, methylpropene sodium sulfonate 8.5 Part, 10.5 parts of sodium hypophosphite, 4.4 parts of initiator, 11.5 parts of preservative.
5. polycarboxylic acid water reducing agent according to claim 1, which is characterized in that the polycarboxylic acid water reducing agent by weight hundred Divide ratio further include: 1.5-2.0 parts of sodium formaldehyde sulphoxylates, 2-3.5 parts of modified starch ethers.
6. polycarboxylic acid water reducing agent according to claim 5, which is characterized in that the polycarboxylic acid water reducing agent by weight hundred Divide ratio further include: 1.8 parts of sodium formaldehyde sulphoxylates, 2.5 parts of modified starch ethers.
7. polycarboxylic acid water reducing agent according to claim 1, which is characterized in that the polycarboxylic acid water reducing agent by weight hundred Divide ratio further include: 6-19 parts of ethylene glycol, 4-9 parts of maleic acid.
8. polycarboxylic acid water reducing agent according to claim 7, which is characterized in that the polycarboxylic acid water reducing agent by weight hundred Divide ratio further include: 7 parts of ethylene glycol, 8 parts of maleic acid.
9. polycarboxylic acid water reducing agent according to claim 1, which is characterized in that the producer of the polycarboxylic acid water reducing agent Method includes the following steps:
S1, unsaturated 14-21 parts of polyoxyethylene ether, 2.8-3.5 parts of slow release high-efficiency water-reducing agent, lauryl sodium sulfate are provided 3.8-12.5 parts, 5.5-8.5 parts of acrylic acid, 5-10 parts of cross-linking monomer, 11-26 parts of diethanol monoisopropanolamine, sodium gluconate 8-20 parts, above-mentioned component is mixed under the action of initiator and preservative, obtains the first intermediate product;
S2,1-2 parts of N- dimethyl cyclohexyl amine, 3.5-7.5 parts of carboxylate, 7-9 parts of methylpropene sodium sulfonate, sodium hypophosphite 8- are provided 13 parts, 1.6-3.0 parts of maleic anhydride, 8-16 parts of mercaptopropionic acid, by above-mentioned component under the action of initiator and preservative Mixing obtains the second intermediate product, the second intermediate product is mixed with the first intermediate product, polyocarboxy acid type of the invention is obtained and subtracts Aqua.
CN201810390090.8A 2018-04-27 2018-04-27 A kind of polycarboxylic acid water reducing agent Pending CN109250945A (en)

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CN110511331A (en) * 2019-08-05 2019-11-29 徐州巨龙新材料科技有限公司 A kind of polycarboxylic acid water reducing agent
CN112300341A (en) * 2020-09-21 2021-02-02 浙江玖龙新材料有限公司 Formula and preparation method of water reducing agent for phosphogypsum

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110511331A (en) * 2019-08-05 2019-11-29 徐州巨龙新材料科技有限公司 A kind of polycarboxylic acid water reducing agent
CN112300341A (en) * 2020-09-21 2021-02-02 浙江玖龙新材料有限公司 Formula and preparation method of water reducing agent for phosphogypsum

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