CN107721237A - A kind of solid-state, anti-freeze type naphthalene system composite water-reducing agent and preparation method thereof - Google Patents
A kind of solid-state, anti-freeze type naphthalene system composite water-reducing agent and preparation method thereof Download PDFInfo
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- CN107721237A CN107721237A CN201710978272.2A CN201710978272A CN107721237A CN 107721237 A CN107721237 A CN 107721237A CN 201710978272 A CN201710978272 A CN 201710978272A CN 107721237 A CN107721237 A CN 107721237A
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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
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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
- 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
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Abstract
The invention discloses a kind of solid-state, anti-freeze type naphthalene system composite water-reducing agent and preparation method thereof, it is related to concrete additive technical field, is made up of the raw material of following parts by weight：35 45 parts of naphthalene water reducer, 10 15 parts of soil level polyglutamic acid, 5 10 parts of 5 10 part, nanometer rubber powder of PAMA, 15 parts of ultra-fine wollastonite in powder, 15 parts of turpentine oil, 0.5 3 parts of sodium lauroyl glutamate, 0.5 3 parts of Emulsifier EL-60 EL, 0.5 3 parts of TBTU.The made composite water-reducing agent of the present invention exists in solid form, nontoxic, improves shelf stability, and reinforcing bar non-corroding is acted on；And the composite water-reducing agent, also with stronger resistance to frost, while improves the durability of concrete in addition to preferable water-reducing effect, so as to significantly improve the synthesis performance of concrete.
Description
Technical field：
The present invention relates to concrete additive technical field, and in particular to a kind of solid-state, anti-freeze type naphthalene system composite water-reducing agent
And preparation method thereof.
Background technology：
The construction environment of building trade is typically all in outdoor, but concrete can be by when outdoor temperature is less than subzero
Freeze, if not taking antifreezing measures, then cannot normal construction in northern area winter.Asked to solve enduring cold for concrete
Topic, people would generally add appropriate antifreezing agent in concrete so that the freeze point depression of concrete.
JC475-2004《Concrete antifreezer》Antifreezing agent is divided into five classes：The first kind is chloride salt antifreezing agent, this kind of anti-
Freezing agent has preferable antifreezing effect, but has a strong impact on the later strength of concrete, and because it contains chlorion, Yi Yin
Play steel bar corrosion；Second class is aluminium salt resistance rust class, but still certain corrosiveness to reinforcing bar be present, and the resistance rust contained by it
Composition nitrite has carcinogenesis；3rd class is non-chloride salt antifreezing agent, such as calcium nitrate or the compound anti-freezing of calcium nitrite
Agent, application at present can still result in the generation of concrete frozen problem than wide, but when dosage is inadequate or temperature is too low, and make to mix
Solidifying native final strength reduces；4th class is organic compound antifreezing agent, can reduce the freezing point of water, can also be made containing such material
The lattice structure gross distortion of ice, thus frost heave stress can not be formed and destroy cement product construction be damaged concrete strength；
The defects of 5th class is complex class antifreezing agent, and this kind of antifreezing agent still has inorganic salts antifreeze component.
In view of the above-mentioned problems, we develop a kind of solid-state, anti-freeze type naphthalene system composite water-reducing agent, the water reducer is with solid-state shape
Formula is present, and avoids conventional liquid water reducer because the resting period easily separates out the problem of precipitation is thereby using performance too long, and should
Water reducer has excellent antifreeze, diminishing, early epistasis energy.
The content of the invention：
The technical problems to be solved by the invention be to provide a kind of safe to use, combination property it is strong and to reinforcing bar without
The solid-state of action of rust, anti-freeze type naphthalene system composite water-reducing agent and preparation method thereof.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of solid-state, anti-freeze type naphthalene system composite water-reducing agent, are made up of the raw material of following parts by weight：
Naphthalene water reducer 35-45 parts, soil level polyglutamic acid 10-15 parts, PAMA 5-10 parts, nanometer
Rubber powder 5-10 parts, ultra-fine wollastonite in powder 1-5 parts, turpentine oil 1-5 parts, sodium lauroyl glutamate 0.5-3 parts, Emulsifier EL-60
EL0.5-3 parts, TBTU0.5-3 parts；
The structural formula of the naphthalene water reducer is as follows：
Wherein n is selected from 0~25 integer.
The preparation method of a kind of solid-state, anti-freeze type naphthalene system composite water-reducing agent, comprises the following steps：
(1) deionized water is added dropwise until being completely dissolved into soil level polyglutamic acid under stirring, polyglutamic acid is made
The aqueous solution；Absolute ethyl alcohol is added dropwise until being completely dissolved into naphthalene water reducer stir simultaneously under, it is molten that naphthalene water reducer ethanol is made
Liquid；The polyglutamic acid aqueous solution and TBTU are added into naphthalene water reducer ethanol solution, is heated to reflux state insulated and stirred 3-
5h, gained mixture are sent into spray dryer, dry gained particle and micro mist is made through micronizer, produce modified naphthalene series
Compound；
(2) sodium lauroyl glutamate and Emulsifier EL-60 EL are added into turpentine oil, is then heated to 70-80 DEG C of guarantor
Temperature stirring 5-10min, continues to be heated to 110-120 DEG C of insulated and stirred 10-15min, naturally cools to room temperature, produce auxiliary agent；
(3) PAMA, nanometer rubber powder, ultra-fine wollastonite in powder are added into modified naphthalene series compound and is helped
Agent, it is blocking through vacuum compression after being sufficiently mixed, and sealing and standing 3-5h in -10 DEG C of environment is transferred to, most afterwards through micronizer system
Into micro mist, composite water-reducing agent is produced.
TBTU is the abbreviation of O- BTAs-N, N, N', N'- tetramethylurea tetrafluoro boric acid ester.
The molecular weight of the PAMA is in 15,000,000,0.1% pH value of water solution in 6-7.
The nanometer rubber powder is prepared from the following raw materials in parts by weight：Poly-aspartic-acid 1-5 parts, hydroxypropyl starch ether 1-
5 parts, trimethylolpropane trimethacrylate 1-5 parts, N hydroxymethyl acrylamide 0.5-3 parts, allyl glycidyl ether 0.5-3
Part, its specific preparation method is：45-50 DEG C is added dropwise under stirring into the mixed powder of poly-aspartic-acid and hydroxypropyl starch ether
Warm water is completely dissolved up to powder, is then heated to reflux state insulated and stirred 10-15min, is produced figuration liquid；Simultaneously by three hydroxyls
Propane tri is heated to 120-125 DEG C of insulated and stirred 5-10min, and adds N hydroxymethyl acrylamide and allyl
Base glycidol ether, continuing in 120-125 DEG C of insulated and stirred 15-30min, gained mixture naturally cools to room temperature, then through super
Micro mist is made in atomizer, produces rubber powder；Rubber powder is added in atomizing mixer, and sprayed under 65-70 DEG C of mixing temperature
Enter figuration liquid, 65-70 DEG C of insulation mixing 10-15min is continued at after having sprayed, gained powder is sent into 100-105 DEG C of baking oven and dried
To constant weight, a nanometer rubber powder is produced.
The ultra-fine wollastonite in powder passes through modification, and its specific method of modifying is：Ultra-fine wollastonite in powder is placed in 130-
5-8h is dried in 135 DEG C of baking ovens, through naturally cooling to room temperature, and is scattered in the water of 3-5 times of parts by weight, adds metering system
Sour hydroxyl ethyl ester, magnesium dimethacrylate and potassium peroxydisulfate, microwave treater microwave reflow treatment 5min is utilized after being sufficiently mixed,
Continue microwave reflow treatment 5min after 5min, be spaced after 5min microwave reflow treatment 5min again, so repeatedly, control microwave
Gained mixture was stirred to moisture at 65-70 DEG C and volatilized, and finally utilizes ultramicro grinding in 30-45min reflow treatment total time
Micro mist is made in machine, produces modified wollastonite powder.
The ultra-fine wollastonite in powder, hydroxyethyl methacrylate, the weight ratio of magnesium dimethacrylate and potassium peroxydisulfate are
5-10:0.5-2:0.5-2:0.01-0.05。
The condition of work of the microwave treater is microwave frequency 2450MHz, power output 700W.
The beneficial effects of the invention are as follows：
(1) hydroxyethyl methacrylate and magnesium dimethacrylate through chemical crosslink reaction wollastonite in powder surface and its
Form acrylic resin in grain internal structure, improved while wollastonite in powder performance strengthen wollastonite in powder and water reducer its
The comixing compatibility of remaining preparing raw material and cement；
(2) to make nanometer rubber powder by oneself as bleeding agent, made water reducer is promoted using its distinctive bonding and permeance property
Rapid osmotic is into cement, so that made water reducer gives full play to diminishing resistance to frost；
(3) using the naphthalene water reducer of the structure as major ingredient, assigned after the esterification with polyglutamic acid made
The preferable resistance to frost of modified naphthalene series compound, and strengthen water-reducing effect；
(4) made composite water-reducing agent exists in solid form, nontoxic, avoids conventional liquid water reducer because of the resting period
The problem of precipitation is thereby using performance is easily separated out too long, improves shelf stability, and reinforcing bar non-corroding is acted on；And this is compound
Water reducer, also with stronger resistance to frost, reduces concrete at low ambient temperatures in addition to preferable water-reducing effect
Shrinkage factor, accelerate rate of set, while improve the durability of concrete, so as to significantly improve the synthesis performance of concrete.
Embodiment：
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Following embodiments and the naphthalene water reducer structural formula used in reference examples are as follows：
Wherein n=20.
Embodiment 1
(1) deionized water is added dropwise until being completely dissolved into 15g soil level polyglutamic acids under stirring, more polyglutamics are made
Aqueous acid；Absolute ethyl alcohol is added dropwise until being completely dissolved into 45g naphthalene water reducers stir simultaneously under, naphthalene water reducer second is made
Alcoholic solution；The polyglutamic acid aqueous solution and 0.5gTBTU are added into naphthalene water reducer ethanol solution, is heated to reflux state guarantor
Temperature stirring 5h, gained mixture are sent into spray dryer, dry gained particle and micro mist is made through micronizer, produce modification
Naphthalene series compound；
(2) 0.5g sodium lauroyl glutamates and 1g Emulsifier EL-60 EL are added into 2g turpentine oil, is then heated to
70-80 DEG C of insulated and stirred 5min, continue to be heated to 110-120 DEG C of insulated and stirred 10min, naturally cool to room temperature, produce auxiliary agent；
(3) 5g PAMAs, 5g nanometers rubber powder, the ultra-fine wollastonites in powder of 3g are added into modified naphthalene series compound
And auxiliary agent, it is blocking through vacuum compression after being sufficiently mixed, and sealing and standing 5h in -10 DEG C of environment is transferred to, most afterwards through micronizer
Micro mist is made, produces composite water-reducing agent.
Wherein, the molecular weight of PAMA in 15,000,000,0.1% pH value of water solution in 6-7.
Embodiment 2
(1) deionized water is added dropwise until being completely dissolved into 10g soil level polyglutamic acids under stirring, more polyglutamics are made
Aqueous acid；Absolute ethyl alcohol is added dropwise until being completely dissolved into 40g naphthalene water reducers stir simultaneously under, naphthalene water reducer second is made
Alcoholic solution；The polyglutamic acid aqueous solution and 0.5gTBTU are added into naphthalene water reducer ethanol solution, is heated to reflux state guarantor
Temperature stirring 5h, gained mixture are sent into spray dryer, dry gained particle and micro mist is made through micronizer, produce modification
Naphthalene series compound；
(2) 1g sodium lauroyl glutamates and 0.5g Emulsifier EL-60 EL are added into 3g turpentine oil, is then heated to
70-80 DEG C of insulated and stirred 5min, continue to be heated to 110-120 DEG C of insulated and stirred 10min, naturally cool to room temperature, produce auxiliary agent；
(3) 5g PAMAs, 5g nanometers rubber powder, the ultra-fine wollastonites in powder of 5g are added into modified naphthalene series compound
And auxiliary agent, it is blocking through vacuum compression after being sufficiently mixed, and sealing and standing 5h in -10 DEG C of environment is transferred to, most afterwards through micronizer
Micro mist is made, produces composite water-reducing agent.
Wherein, the molecular weight of PAMA in 15,000,000,0.1% pH value of water solution in 6-7.
Embodiment 3
(1) deionized water is added dropwise until being completely dissolved into 15g soil level polyglutamic acids under stirring, more polyglutamics are made
Aqueous acid；Absolute ethyl alcohol is added dropwise until being completely dissolved into 45g naphthalene water reducers stir simultaneously under, naphthalene water reducer second is made
Alcoholic solution；The polyglutamic acid aqueous solution and 0.5gTBTU are added into naphthalene water reducer ethanol solution, is heated to reflux state guarantor
Temperature stirring 5h, gained mixture are sent into spray dryer, dry gained particle and micro mist is made through micronizer, produce modification
Naphthalene series compound；
(2) 0.5g sodium lauroyl glutamates and 1g Emulsifier EL-60 EL are added into 2g turpentine oil, is then heated to
70-80 DEG C of insulated and stirred 5min, continue to be heated to 110-120 DEG C of insulated and stirred 10min, naturally cool to room temperature, produce auxiliary agent；
(3) 5g PAMAs, 5g nanometers rubber powder, the ultra-fine wollastonites in powder of 3g are added into modified naphthalene series compound
And auxiliary agent, it is blocking through vacuum compression after being sufficiently mixed, and sealing and standing 5h in -10 DEG C of environment is transferred to, most afterwards through micronizer
Micro mist is made, produces composite water-reducing agent.
Wherein, the molecular weight of PAMA in 15,000,000,0.1% pH value of water solution in 6-7.
The modification of ultra-fine wollastonite in powder：The ultra-fine wollastonites in powder of 10g are placed in 130-135 DEG C of baking oven and dry 8h, through nature
Room temperature is cooled to, and is scattered in the water of 3 times of parts by weight, adds 1g hydroxyethyl methacrylates, 2g magnesium dimethacrylates
With 0.03g potassium peroxydisulfates, returned after being sufficiently mixed using microwave frequency 2450MHz, power output 700W microwave treater microwave
Stream process 5min, continue microwave reflow treatment 5min after being spaced 5min, be spaced after 5min microwave reflow treatment 5min again, so
Repeatedly, controlling microwave reflow treatment total time, gained mixture is stirred to moisture at 65-70 DEG C and volatilized in 30min, last profit
Micro mist is made with micronizer, produces modified wollastonite powder.
Embodiment 4
(1) deionized water is added dropwise until being completely dissolved into 10g soil level polyglutamic acids under stirring, more polyglutamics are made
Aqueous acid；Absolute ethyl alcohol is added dropwise until being completely dissolved into 40g naphthalene water reducers stir simultaneously under, naphthalene water reducer second is made
Alcoholic solution；The polyglutamic acid aqueous solution and 0.5gTBTU are added into naphthalene water reducer ethanol solution, is heated to reflux state guarantor
Temperature stirring 5h, gained mixture are sent into spray dryer, dry gained particle and micro mist is made through micronizer, produce modification
Naphthalene series compound；
(2) 1g sodium lauroyl glutamates and 0.5g Emulsifier EL-60 EL are added into 3g turpentine oil, is then heated to
70-80 DEG C of insulated and stirred 5min, continue to be heated to 110-120 DEG C of insulated and stirred 10min, naturally cool to room temperature, produce auxiliary agent；
(3) 5g PAMAs, 5g nanometers rubber powder, the ultra-fine wollastonites in powder of 5g are added into modified naphthalene series compound
And auxiliary agent, it is blocking through vacuum compression after being sufficiently mixed, and sealing and standing 5h in -10 DEG C of environment is transferred to, most afterwards through micronizer
Micro mist is made, produces composite water-reducing agent.
Wherein, the molecular weight of PAMA in 15,000,000,0.1% pH value of water solution in 6-7.
The preparation of nanometer rubber powder：To 5g poly-aspartic-acids with being added dropwise in the mixed powder of 3g hydroxypropyl starch ethers under stirring
45-50 DEG C of warm water is completely dissolved up to powder, is then heated to reflux state insulated and stirred 15min, is produced figuration liquid；Simultaneously will
3g trimethylolpropane trimethacrylates are heated to 120-125 DEG C of insulated and stirred 5min, and add 1gN- NMAs
With 0.5g allyl glycidyl ethers, continue to naturally cool to room temperature in 120-125 DEG C of insulated and stirred 30min, gained mixture,
Micro mist is made through micronizer again, produces rubber powder；Rubber powder is added in atomizing mixer, and in 65-70 DEG C of mixing temperature
Degree is lower to spray into figuration liquid, and 65-70 DEG C of insulation mixing 15min is continued at after having sprayed, and gained powder is sent into 100-105 DEG C of baking oven and done
It is dry to constant weight, produce a nanometer rubber powder.
Embodiment 5
(1) deionized water is added dropwise until being completely dissolved into 15g soil level polyglutamic acids under stirring, more polyglutamics are made
Aqueous acid；Absolute ethyl alcohol is added dropwise until being completely dissolved into 45g naphthalene water reducers stir simultaneously under, naphthalene water reducer second is made
Alcoholic solution；The polyglutamic acid aqueous solution and 0.5gTBTU are added into naphthalene water reducer ethanol solution, is heated to reflux state guarantor
Temperature stirring 5h, gained mixture are sent into spray dryer, dry gained particle and micro mist is made through micronizer, produce modification
Naphthalene series compound；
(2) 0.5g sodium lauroyl glutamates and 1g Emulsifier EL-60 EL are added into 2g turpentine oil, is then heated to
70-80 DEG C of insulated and stirred 5min, continue to be heated to 110-120 DEG C of insulated and stirred 10min, naturally cool to room temperature, produce auxiliary agent；
(3) 5g PAMAs, 5g nanometers rubber powder, the ultra-fine wollastonites in powder of 3g are added into modified naphthalene series compound
And auxiliary agent, it is blocking through vacuum compression after being sufficiently mixed, and sealing and standing 5h in -10 DEG C of environment is transferred to, most afterwards through micronizer
Micro mist is made, produces composite water-reducing agent.
Wherein, the molecular weight of PAMA in 15,000,000,0.1% pH value of water solution in 6-7.
The preparation of nanometer rubber powder：To 5g poly-aspartic-acids with being added dropwise in the mixed powder of 3g hydroxypropyl starch ethers under stirring
45-50 DEG C of warm water is completely dissolved up to powder, is then heated to reflux state insulated and stirred 15min, is produced figuration liquid；Simultaneously will
3g trimethylolpropane trimethacrylates are heated to 120-125 DEG C of insulated and stirred 5min, and add 1gN- NMAs
With 0.5g allyl glycidyl ethers, continue to naturally cool to room temperature in 120-125 DEG C of insulated and stirred 30min, gained mixture,
Micro mist is made through micronizer again, produces rubber powder；Rubber powder is added in atomizing mixer, and in 65-70 DEG C of mixing temperature
Degree is lower to spray into figuration liquid, and 65-70 DEG C of insulation mixing 15min is continued at after having sprayed, and gained powder is sent into 100-105 DEG C of baking oven and done
It is dry to constant weight, produce a nanometer rubber powder.
The modification of ultra-fine wollastonite in powder：The ultra-fine wollastonites in powder of 10g are placed in 130-135 DEG C of baking oven and dry 8h, through nature
Room temperature is cooled to, and is scattered in the water of 3 times of parts by weight, adds 1g hydroxyethyl methacrylates, 2g magnesium dimethacrylates
With 0.03g potassium peroxydisulfates, returned after being sufficiently mixed using microwave frequency 2450MHz, power output 700W microwave treater microwave
Stream process 5min, continue microwave reflow treatment 5min after being spaced 5min, be spaced after 5min microwave reflow treatment 5min again, so
Repeatedly, controlling microwave reflow treatment total time, gained mixture is stirred to moisture at 65-70 DEG C and volatilized in 30min, last profit
Micro mist is made with micronizer, produces modified wollastonite powder.
Embodiment 6
(1) deionized water is added dropwise until being completely dissolved into 10g soil level polyglutamic acids under stirring, more polyglutamics are made
Aqueous acid；Absolute ethyl alcohol is added dropwise until being completely dissolved into 40g naphthalene water reducers stir simultaneously under, naphthalene water reducer second is made
Alcoholic solution；The polyglutamic acid aqueous solution and 0.5gTBTU are added into naphthalene water reducer ethanol solution, is heated to reflux state guarantor
Temperature stirring 5h, gained mixture are sent into spray dryer, dry gained particle and micro mist is made through micronizer, produce modification
Naphthalene series compound；
(2) 1g sodium lauroyl glutamates and 0.5g Emulsifier EL-60 EL are added into 3g turpentine oil, is then heated to
70-80 DEG C of insulated and stirred 5min, continue to be heated to 110-120 DEG C of insulated and stirred 10min, naturally cool to room temperature, produce auxiliary agent；
(3) 5g PAMAs, 5g nanometers rubber powder, the ultra-fine wollastonites in powder of 5g are added into modified naphthalene series compound
And auxiliary agent, it is blocking through vacuum compression after being sufficiently mixed, and sealing and standing 5h in -10 DEG C of environment is transferred to, most afterwards through micronizer
Micro mist is made, produces composite water-reducing agent.
Wherein, the molecular weight of PAMA in 15,000,000,0.1% pH value of water solution in 6-7.
The preparation of nanometer rubber powder：To 3g poly-aspartic-acids with being added dropwise in the mixed powder of 2g hydroxypropyl starch ethers under stirring
45-50 DEG C of warm water is completely dissolved up to powder, is then heated to reflux state insulated and stirred 15min, is produced figuration liquid；Simultaneously will
2g trimethylolpropane trimethacrylates are heated to 120-125 DEG C of insulated and stirred 5min, and add 0.5gN- methylol acryloyls
Amine and 1g allyl glycidyl ethers, continue to naturally cool to room temperature in 120-125 DEG C of insulated and stirred 15min, gained mixture,
Micro mist is made through micronizer again, produces rubber powder；Rubber powder is added in atomizing mixer, and in 65-70 DEG C of mixing temperature
Degree is lower to spray into figuration liquid, and 65-70 DEG C of insulation mixing 10min is continued at after having sprayed, and gained powder is sent into 100-105 DEG C of baking oven and done
It is dry to constant weight, produce a nanometer rubber powder.
The modification of ultra-fine wollastonite in powder：The ultra-fine wollastonites in powder of 10g are placed in 130-135 DEG C of baking oven and dry 8h, through nature
Room temperature is cooled to, and is scattered in the water of 3 times of parts by weight, adds 2g hydroxyethyl methacrylates, 1g magnesium dimethacrylates
With 0.03g potassium peroxydisulfates, returned after being sufficiently mixed using microwave frequency 2450MHz, power output 700W microwave treater microwave
Stream process 5min, continue microwave reflow treatment 5min after being spaced 5min, be spaced after 5min microwave reflow treatment 5min again, so
Repeatedly, controlling microwave reflow treatment total time, gained mixture is stirred to moisture at 65-70 DEG C and volatilized in 30min, last profit
Micro mist is made with micronizer, produces modified wollastonite powder.
Reference examples 1
(1) deionized water is added dropwise until being completely dissolved into 10g soil level polyglutamic acids under stirring, more polyglutamics are made
Aqueous acid；Absolute ethyl alcohol is added dropwise until being completely dissolved into 40g naphthalene water reducers stir simultaneously under, naphthalene water reducer second is made
Alcoholic solution；The polyglutamic acid aqueous solution and 0.5gTBTU are added into naphthalene water reducer ethanol solution, is heated to reflux state guarantor
Temperature stirring 5h, gained mixture are sent into spray dryer, dry gained particle and micro mist is made through micronizer, produce modification
Naphthalene series compound；
(2) 5g PAMAs, 5g nanometers rubber powder, the ultra-fine wollastonites in powder of 5g are added into modified naphthalene series compound
It is blocking through vacuum compression after being sufficiently mixed with 3g turpentine oil, and sealing and standing 5h in -10 DEG C of environment is transferred to, most afterwards through Ultramicro-powder
Micro mist is made in broken machine, produces composite water-reducing agent.
Wherein, the molecular weight of PAMA in 15,000,000,0.1% pH value of water solution in 6-7.
Reference examples 2
(1) 1g sodium lauroyl glutamates and 0.5g Emulsifier EL-60 EL are added into 3g turpentine oil, is then heated to
70-80 DEG C of insulated and stirred 5min, continue to be heated to 110-120 DEG C of insulated and stirred 10min, naturally cool to room temperature, produce auxiliary agent；
(2) 10g soil levels polyglutamic acid, 5g PAMAs, 5g nanometers are added into 40g naphthalene water reducers
The ultra-fine wollastonite in powder of rubber powder, 5g and auxiliary agent, it is blocking through vacuum compression after being sufficiently mixed, and it is transferred to sealing and standing in -10 DEG C of environment
5h, micro mist most is made through micronizer afterwards, produces composite water-reducing agent.
Wherein, the molecular weight of PAMA in 15,000,000,0.1% pH value of water solution in 6-7.
Reference examples 3
(1) 1g sodium lauroyl glutamates and 0.5g Emulsifier EL-60 EL are added into 3g turpentine oil, is then heated to
70-80 DEG C of insulated and stirred 5min, continue to be heated to 110-120 DEG C of insulated and stirred 10min, naturally cool to room temperature, produce auxiliary agent；
(2) 5g PAMAs, 5g nanometers rubber powder, the ultra-fine wollastonites in powder of 5g are added into 40g naphthalene water reducers
And auxiliary agent, it is blocking through vacuum compression after being sufficiently mixed, and sealing and standing 5h in -10 DEG C of environment is transferred to, most afterwards through micronizer
Micro mist is made, produces composite water-reducing agent.
Wherein, the molecular weight of PAMA in 15,000,000,0.1% pH value of water solution in 6-7.
Embodiment 7
By the made composite water-reducing agent of embodiment 1-6, reference examples 1-3 with reference to GB8076-2016《Concrete admixture》Measure
Concrete water-reducing ratio, air content, bleeding rate ratio and setting time, and with reference to GB/T50081-2016《Normal concrete mechanical property
Can test method standard》Compression strength is determined, other properties measure is with reference to JC475-2004《Concrete antifreezer》, measure
As a result as shown in table 1, table 2.And set made with patent CN103224341A embodiments 1, CN101186462 embodiments 1 respectively
Water reducer is as reference examples 4, reference examples 5.
Concrete mixing：P.042.5 sand, the weight proportion of 5-10mm continuous grading rubbles in cement, modulus of fineness 2.6
360:780:1080, adjustment water consumption makes the fresh concrete slump be 80 ± 10mm, and water reducer volume is cement weight
1.5%.
The performance measurement result 1 of 1 composite water-reducing agent of the present invention of table
The performance measurement result 2 of 2 composite water-reducing agent of the present invention of table
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. a kind of solid-state, anti-freeze type naphthalene system composite water-reducing agent, it is characterised in that：It is made up of the raw material of following parts by weight：
Naphthalene water reducer 35-45 parts, soil level polyglutamic acid 10-15 parts, PAMA 5-10 parts, nanometer rubber powder
5-10 parts, ultra-fine wollastonite in powder 1-5 parts, turpentine oil 1-5 parts, sodium lauroyl glutamate 0.5-3 parts, Emulsifier EL-60 EL
0.5-3 parts, TBTU 0.5-3 parts；
The structural formula of the naphthalene water reducer is as follows：
Wherein n is selected from 0~25 integer.
A kind of 2. preparation method of solid-state, anti-freeze type naphthalene system composite water-reducing agent, it is characterised in that：Comprise the following steps：
(1) deionized water is added dropwise until being completely dissolved into soil level polyglutamic acid under stirring, it is water-soluble that polyglutamic acid is made
Liquid；Absolute ethyl alcohol is added dropwise until being completely dissolved into naphthalene water reducer stir simultaneously under, naphthalene water reducer ethanol solution is made；To
The polyglutamic acid aqueous solution and TBTU are added in naphthalene water reducer ethanol solution, is heated to reflux state insulated and stirred 3-5h, institute
Obtain mixture to be sent into spray dryer, dry gained particle and micro mist is made through micronizer, produce modified naphthalene series compound；
(2) sodium lauroyl glutamate and Emulsifier EL-60 EL are added into turpentine oil, 70-80 DEG C of insulation is then heated to and stirs
5-10min is mixed, continues to be heated to 110-120 DEG C of insulated and stirred 10-15min, naturally cools to room temperature, produce auxiliary agent；
(3) PAMA, nanometer rubber powder, ultra-fine wollastonite in powder and auxiliary agent are added into modified naphthalene series compound, is filled
It is blocking through vacuum compression after point mixing, and sealing and standing 3-5h in -10 DEG C of environment is transferred to, be most made afterwards through micronizer micro-
Powder, produce composite water-reducing agent.
3. solid-state according to claim 1 or 2, anti-freeze type naphthalene system composite water-reducing agent, it is characterised in that：The anion gathers
The molecular weight of acrylamide is in 15,000,000,0.1% pH value of water solution in 6-7.
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|---|---|---|---|
| CN201710978272.2A CN107721237A (en) | 2017-10-18 | 2017-10-18 | A kind of solid-state, anti-freeze type naphthalene system composite water-reducing agent and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111153623A (en) * | 2019-12-30 | 2020-05-15 | 安徽皖科新科技发展有限公司 | Preparation method of solid concrete water reducing agent |
| CN116731275A (en) * | 2023-07-06 | 2023-09-12 | 湖北腾辰科技股份有限公司 | Mud-resistant modified naphthalene water reducer and preparation method thereof |
-
2017
- 2017-10-18 CN CN201710978272.2A patent/CN107721237A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111153623A (en) * | 2019-12-30 | 2020-05-15 | 安徽皖科新科技发展有限公司 | Preparation method of solid concrete water reducing agent |
| CN116731275A (en) * | 2023-07-06 | 2023-09-12 | 湖北腾辰科技股份有限公司 | Mud-resistant modified naphthalene water reducer and preparation method thereof |
| CN116731275B (en) * | 2023-07-06 | 2024-01-26 | 湖北腾辰科技股份有限公司 | Mud-resistant modified naphthalene water reducer and preparation method thereof |
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