CN105985052A - Efficient polycarboxylic acid water reducing agent with additional modified celluloses - Google Patents
Efficient polycarboxylic acid water reducing agent with additional modified celluloses Download PDFInfo
- Publication number
- CN105985052A CN105985052A CN201610025633.7A CN201610025633A CN105985052A CN 105985052 A CN105985052 A CN 105985052A CN 201610025633 A CN201610025633 A CN 201610025633A CN 105985052 A CN105985052 A CN 105985052A
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- CN
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- Prior art keywords
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- polycarboxylic acid
- reducing agent
- deionized water
- water reducing
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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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- 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 discloses an efficient polycarboxylic acid water reducing agent with modified celluloses. The efficient polycarboxylic acid water reducing agent comprises, by weight, 240-250 parts of methyl-2-buten polyoxyethylene ether, 25.2-26.0 parts of acrylic acid, 1.6-1.65 parts of ammonium persulfate, 0.53-0.55 part of thioglycolic acid, 13-14 parts of lignin, an appropriate quantity of sodium hydroxide solution with the concentration of 10 wt%, an appropriate quantity of deionized water, 26-28 parts of graphene oxide, 5-7 parts of waste liquid from sugar factories, 7-8 parts of hydroxypropyl methyl celluloses, 2-3 parts of polyacrylamide, 3-4 parts of calcium chloride, 2-3 parts of triethanolamine, 5-6 parts of carbon black, 19-22 parts of building brick residues and 1-1.2 parts of silane coupling agents kh550. The efficient polycarboxylic acid water reducing agent has the advantages that components such as the hydroxypropyl methyl celluloses, the polyacrylamide and the carbon black are added into the efficient polycarboxylic acid water reducing agent in preparation procedures by the aid of a series of treatment processes, accordingly, the flowability and the frost resistance of concrete can be improved, and the dispersion resistance of products in water further can be improved.
Description
Technical field
The present invention relates to technical field of concrete additives, particularly relate to a kind of interpolation modified cellulose High-efficiency polycarboxylic acid water reducer.
Background technology
Polycarboxylate high performance water-reducing agent, as the important composition material of preparation high performance concrete, the guarantor outstanding advantages such as plasticity good, shrinkage factor low, high performance potentiality big high by its water-reducing rate, is widely used in the key projects such as high ferro, bridge, nuclear power, water power.But, polycarboxylate high performance water-reducing agent mother solution performance is the most single, it is impossible to meet different engineering field, the concrete of different performance requirement, greatly constrains extensively application and the development of polycarboxylate high performance water-reducing agent.Experts and scholars have carried out relatively systematic research by chemically and physically modified method to polycarboxylate high performance water-reducing agent both at home and abroad, achieve gratifying achievement.But these researchs are concentrated mainly on the performance improving polycarboxylate high performance water-reducing agent in a certain respect, such as spacetabs type, Xu are put type and utilize inexpensive monomers synthesis fall low-cost type, and the aspect such as multicomponent physics is compound, bring inconvenience so to compounding unit and construction enterprises, in use easily cause quality accident.
" experimental study of organic amine modified polycarboxylic acid series high-performance dehydragent " literary composition is for the problems referred to above the achievement in research that combines domestic and international expert, the polycarboxylate high performance water-reducing agent using organic amine to produce different manufacturers has carried out physics, chemical modification, the adaptability of cement is greatly improved by modified polycarboxylate high performance water-reducing agent, and the engineering that a kind of mother solution can be suitable for different requirement uses, it is achieved that the high performance of polycarboxylate high performance water-reducing agent mother solution, multifunction.But easily occur that bleeding, isolation, intensity are low, easily the problems such as crack occur when producing concrete, have impact on the use of water reducer, article does not illustrate for these shortcomings, need to be modified further.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of interpolation modified cellulose High-efficiency polycarboxylic acid water reducer.
The present invention is achieved by the following technical solutions:
A kind of add modified cellulose High-efficiency polycarboxylic acid water reducer, be made up of the raw material of following weight portion: isopentenol polyoxyethylene ether 240-250, acrylic acid 25.2-26.0, Ammonium persulfate. 1.6-1.65, TGA 0.53-0.55, lignin 13-14, concentration are that the sodium hydroxide solution of 10wt% is appropriate, deionized water in right amount, graphene oxide 26-28, sugar refinery waste liquid 5-7, hydroxypropyl methylcellulose 7-8, polyacrylamide 2-3, calcium chloride 3-4, triethanolamine 2-3, white carbon black 5-6, building brick slag 19-22, silane coupler kh5501-1.2.
Described a kind of interpolation modified cellulose High-efficiency polycarboxylic acid water reducer, is made up of step in detail below:
(1) graphene oxide will add the deionized water of 4-5 times amount, put in ultrasonator ultrasonic 30-40 minute until being uniformly dispersed, then graphene oxide dispersion being put in the water-bath of 60-80 DEG C and heat, be slowly added to lignin, it is stand-by that dispersed with stirring forms mixture the most afterwards；
(2) reactor will add isopentenol polyoxyethylene ether, appropriate amount of deionized water, warming while stirring disposably adds Ammonium persulfate. after 60-70 DEG C, then be slowly added dropwise acrylic acid, mixture that TGA, step (1) obtain, control dripped complete in 3-3.5 hour, continue insulation reaction 60-90 minute, finally dripping the sodium hydroxide solution that concentration is 10wt% to be neutralized, regulation pH value is neutral, and solid content controls at 40%-45%；
(3) put into after building brick slag being broken into fritter in ball mill, ball milling 20 minutes, silane coupler kh550 is dissolved in the deionized water of 2-3 times amount formation solution, it is sprayed in ball mill, continues ball milling 30-40 minute, discharging, put in vacuum drying oven and be dried, grind, obtain building brick powder；The deionized water of 3-3.5 times amount is added in hydroxypropyl methylcellulose, stir to fully dissolving, continuously add polyacrylamide, sugar refinery waste liquid, adding calcium chloride, triethanolamine, above-mentioned building brick powder and remaining residual components with the speed of 300 revs/min after stirring 20-30 minute, the speed dispersed with stirring with 500-600 rev/min is uniform；
(4) step (2) product is mixed with step (3) product, put in stirred tank, stir mixing with the speed of 600-800 rev/min and be uniformly dispersed and get final product.
The invention have the advantage that the present invention is by controlling the proportioning of isopentenol polyoxyethylene ether and acrylic monomers, thus prepare the water reducer with good dispersion, by polyreaction, lignin, graphene oxide are grafted in polyether-type water reducer molecule, the bleeding of water reducer can be reduced, improve graphene oxide dispersion in cement mortar simultaneously, microstructure to cement mortar has preferable regulating and controlling effect, concrete is played the effect of activeness and quietness, it is possible to improve the paste flowing degree of cement further.
Compositions such as with the addition of hydroxypropyl methylcellulose, polyacrylamide, white carbon black is added in the preparation process of water reducer by the present invention by a series of process technique, improve the mobility of concrete, frost resistance, further increase product dispersion resistance in water, can be used in the concrete used in water, impervious good, decrease cement consumption, reduce industrial cost.
Detailed description of the invention
A kind of add modified cellulose High-efficiency polycarboxylic acid water reducer, be made up of the raw material of following weight portion (kilogram): isopentenol polyoxyethylene ether 240, acrylic acid 25.2, Ammonium persulfate. 1.6, TGA 0.53, lignin 13, concentration are that the sodium hydroxide solution of 10wt% is appropriate, deionized water in right amount, graphene oxide 26, sugar refinery waste liquid 5, hydroxypropyl methylcellulose 7, polyacrylamide 2, calcium chloride 3, triethanolamine 2, white carbon black 5, building brick slag 19, silane coupler kh5501.
Described a kind of interpolation modified cellulose High-efficiency polycarboxylic acid water reducer, is made up of step in detail below:
(1) graphene oxide will add the deionized water of 4 times amount, put in ultrasonator ultrasonic 30 minutes until being uniformly dispersed, then graphene oxide dispersion being put in the water-bath of 60 DEG C and heat, be slowly added to lignin, it is stand-by that dispersed with stirring forms mixture the most afterwards；
(2) reactor will add isopentenol polyoxyethylene ether, appropriate amount of deionized water, warming while stirring disposably adds Ammonium persulfate. after 60 DEG C, then be slowly added dropwise acrylic acid, mixture that TGA, step (1) obtain, control dripped complete in 3 hours, continue insulation reaction 60 minutes, finally dripping the sodium hydroxide solution that concentration is 10wt% to be neutralized, regulation pH value is neutral, and solid content controls 40%%；
(3) put into after building brick slag being broken into fritter in ball mill, ball milling 20 minutes, silane coupler kh550 is dissolved in the deionized water of 2 times amount formation solution, it is sprayed in ball mill, continues ball milling 30 minutes, discharging, put in vacuum drying oven and be dried, grind, obtain building brick powder；The deionized water of 3 times amount is added in hydroxypropyl methylcellulose, stir to fully dissolving, continuously add polyacrylamide, sugar refinery waste liquid, adding calcium chloride, triethanolamine, above-mentioned building brick powder and remaining residual components with the speed of 300 revs/min after stirring 20 minutes, the speed dispersed with stirring with 500 revs/min is uniform；
(4) step (2) product is mixed with step (3) product, put in stirred tank, stir mixing with the speed of 600 revs/min and be uniformly dispersed and get final product.
The water reducer excellent product performance that the present invention prepares, water-reducing rate is up to 27.5%, and bleeding rate is 30.2%, volume of the present invention is cement consumption 1%, in the case of the identical ratio of mud compared with using ordinary water-reducing agent, the slump can be made to improve more than 15cm, comprcssive strength improves more than 18%.
Claims (2)
1. one kind is added modified cellulose High-efficiency polycarboxylic acid water reducer, it is characterized in that, be made up of the raw material of following weight portion: isopentenol polyoxyethylene ether 240-250, acrylic acid 25.2-26.0, Ammonium persulfate. 1.6-1.65, TGA 0.53-0.55, lignin 13-14, concentration are that the sodium hydroxide solution of 10wt% is appropriate, deionized water appropriate, graphene oxide 26-28, sugar refinery waste liquid 5-7, hydroxypropyl methylcellulose 7-8, polyacrylamide 2-3, calcium chloride 3-4, triethanolamine 2-3, white carbon black 5-6, building brick slag 19-22, silane coupler kh5501-1.2.
A kind of interpolation modified cellulose High-efficiency polycarboxylic acid water reducer, it is characterised in that be made up of step in detail below:
(1) graphene oxide will add the deionized water of 4-5 times amount, put in ultrasonator ultrasonic 30-40 minute until being uniformly dispersed, then graphene oxide dispersion being put in the water-bath of 60-80 DEG C and heat, be slowly added to lignin, it is stand-by that dispersed with stirring forms mixture the most afterwards；
(2) reactor will add isopentenol polyoxyethylene ether, appropriate amount of deionized water, warming while stirring disposably adds Ammonium persulfate. after 60-70 DEG C, then be slowly added dropwise acrylic acid, mixture that TGA, step (1) obtain, control dripped complete in 3-3.5 hour, continue insulation reaction 60-90 minute, finally dripping the sodium hydroxide solution that concentration is 10wt% to be neutralized, regulation pH value is neutral, and solid content controls at 40%-45%；
(3) put into after building brick slag being broken into fritter in ball mill, ball milling 20 minutes, silane coupler kh550 is dissolved in the deionized water of 2-3 times amount formation solution, it is sprayed in ball mill, continues ball milling 30-40 minute, discharging, put in vacuum drying oven and be dried, grind, obtain building brick powder；The deionized water of 3-3.5 times amount is added in hydroxypropyl methylcellulose, stir to fully dissolving, continuously add polyacrylamide, sugar refinery waste liquid, adding calcium chloride, triethanolamine, above-mentioned building brick powder and remaining residual components with the speed of 300 revs/min after stirring 20-30 minute, the speed dispersed with stirring with 500-600 rev/min is uniform；
(4) step (2) product is mixed with step (3) product, put in stirred tank, stir mixing with the speed of 600-800 rev/min and be uniformly dispersed and get final product.
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| CN201610025633.7A CN105985052A (en) | 2016-01-15 | 2016-01-15 | Efficient polycarboxylic acid water reducing agent with additional modified celluloses |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565917A (en) * | 2016-10-26 | 2017-04-19 | 章功国 | Diatomite modified polymer coated dielectric material and preparation method thereof |
| CN108101489A (en) * | 2017-12-23 | 2018-06-01 | 季梅 | Good concrete of a kind of Sulfate corrosion resistance energy and preparation method thereof |
| CN108191289A (en) * | 2017-12-29 | 2018-06-22 | 中科院广州化学有限公司 | A kind of carbon black modified polycarboxylate water-reducer and its preparation method and application |
| CN108218279A (en) * | 2018-03-26 | 2018-06-29 | 白彤洲 | A kind of building trade cement water reducing agent containing graphene and preparation method thereof |
| CN109942221A (en) * | 2019-03-13 | 2019-06-28 | 苏州科技大学 | Silane-modified graphene oxide chemical modification type polycarboxylate water-reducer and preparation method thereof |
| CN112552454A (en) * | 2020-11-09 | 2021-03-26 | 中交二航武汉港湾新材料有限公司 | Preparation method of anti-dispersing agent for underwater non-dispersed concrete |
| CN112707673A (en) * | 2020-09-15 | 2021-04-27 | 科之杰新材料集团有限公司 | Super-shrinkage type polycarboxylate superplasticizer and preparation method thereof |
| CN113185185A (en) * | 2021-05-31 | 2021-07-30 | 扬州工业职业技术学院 | Multifunctional auxiliary agent for building material and preparation method thereof |
| WO2021236146A1 (en) * | 2020-05-22 | 2021-11-25 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing with food contact compliant agents |
| CN113717329A (en) * | 2021-10-09 | 2021-11-30 | 湖南先锋建材有限公司 | Mud-blocking concrete water reducing agent and preparation method thereof |
| CN113800806A (en) * | 2021-11-01 | 2021-12-17 | 湖南先锋建材有限公司 | Concrete water reducing agent and production method thereof |
| CN115594844A (en) * | 2022-11-09 | 2023-01-13 | 德蓝(海南)未来之水有限公司（Cn） | Special water purifying agent for petroleum and petrochemical industry and preparation method thereof |
| CN116239333A (en) * | 2023-05-11 | 2023-06-09 | 湖南高翔新材料有限公司 | Production process of antifreeze concrete additive |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565917A (en) * | 2016-10-26 | 2017-04-19 | 章功国 | Diatomite modified polymer coated dielectric material and preparation method thereof |
| CN108101489A (en) * | 2017-12-23 | 2018-06-01 | 季梅 | Good concrete of a kind of Sulfate corrosion resistance energy and preparation method thereof |
| CN108191289A (en) * | 2017-12-29 | 2018-06-22 | 中科院广州化学有限公司 | A kind of carbon black modified polycarboxylate water-reducer and its preparation method and application |
| CN108191289B (en) * | 2017-12-29 | 2020-12-04 | 中科院广州化学有限公司 | Carbon black modified polycarboxylate superplasticizer and preparation method and application thereof |
| CN108218279A (en) * | 2018-03-26 | 2018-06-29 | 白彤洲 | A kind of building trade cement water reducing agent containing graphene and preparation method thereof |
| CN109942221A (en) * | 2019-03-13 | 2019-06-28 | 苏州科技大学 | Silane-modified graphene oxide chemical modification type polycarboxylate water-reducer and preparation method thereof |
| WO2021236146A1 (en) * | 2020-05-22 | 2021-11-25 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing with food contact compliant agents |
| CN112707673A (en) * | 2020-09-15 | 2021-04-27 | 科之杰新材料集团有限公司 | Super-shrinkage type polycarboxylate superplasticizer and preparation method thereof |
| CN112552454B (en) * | 2020-11-09 | 2023-04-18 | 中交二航武汉港湾新材料有限公司 | Preparation method of anti-dispersing agent for underwater non-dispersed concrete |
| CN112552454A (en) * | 2020-11-09 | 2021-03-26 | 中交二航武汉港湾新材料有限公司 | Preparation method of anti-dispersing agent for underwater non-dispersed concrete |
| CN113185185A (en) * | 2021-05-31 | 2021-07-30 | 扬州工业职业技术学院 | Multifunctional auxiliary agent for building material and preparation method thereof |
| CN113185185B (en) * | 2021-05-31 | 2022-08-02 | 扬州工业职业技术学院 | Multifunctional auxiliary agent for building material and preparation method thereof |
| CN113717329A (en) * | 2021-10-09 | 2021-11-30 | 湖南先锋建材有限公司 | Mud-blocking concrete water reducing agent and preparation method thereof |
| CN113800806A (en) * | 2021-11-01 | 2021-12-17 | 湖南先锋建材有限公司 | Concrete water reducing agent and production method thereof |
| CN115594844A (en) * | 2022-11-09 | 2023-01-13 | 德蓝(海南)未来之水有限公司（Cn） | Special water purifying agent for petroleum and petrochemical industry and preparation method thereof |
| CN115594844B (en) * | 2022-11-09 | 2023-08-29 | 德蓝(海南)未来之水有限公司 | Special water purifying agent for petroleum and petrochemical industry and preparation method thereof |
| CN116239333A (en) * | 2023-05-11 | 2023-06-09 | 湖南高翔新材料有限公司 | Production process of antifreeze concrete additive |
| CN116239333B (en) * | 2023-05-11 | 2023-07-07 | 湖南高翔新材料有限公司 | Production process of antifreeze concrete additive |
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Application publication date: 20161005 |