CN106977129A - Anti- mud collapse protective poly-carboxylic acid high efficiency water reducing agent and preparation method thereof - Google Patents
Anti- mud collapse protective poly-carboxylic acid high efficiency water reducing agent and preparation method thereof Download PDFInfo
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- CN106977129A CN106977129A CN201710230199.0A CN201710230199A CN106977129A CN 106977129 A CN106977129 A CN 106977129A CN 201710230199 A CN201710230199 A CN 201710230199A CN 106977129 A CN106977129 A CN 106977129A
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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
- 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
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular 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
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Treatment Of Sludge (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a kind of anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent and preparation method thereof, there is higher water-reducing rate using polyethenoxy ether class monomer, phosphoric acid salt material, acrylic monomer, acrylic ester monomer, vinyl-based cationic monomer water reducer made from raw material, it ensure that the excellent service behaviour of concrete, high intensity and excellent durability, and water reducer consumption can be reduced in concrete and extends the slump retention time, production cost is greatly reduced.In addition, the water reducer of the present invention is suitable to various soil, there is significant anti-mud to protect the effect of collapsing, and energy-conserving and environment-protective, production process no waste discharge to all soil.
Description
Technical field
The present invention relates to poly carboxylic acid series water reducer field, more particularly to a kind of anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent and
Its preparation method.
Background technology
How it is that the third generation after sulfonate, sulfamate is efficient after lignosulfonates that poly carboxylic acid series water reducer if being
Water reducer, due to its formaldehydeless pollution, concrete curing rear intensity is high, the advantages of water-reducing rate is high, it has also become most popular
High-performance water reducing agent.But relative to other several water reducers, soil is stronger to the adsorptivity of polycarboxylic acids dehydragent.And with
Building trade fast development and environmental requirement, current sandstone quality have become inexorable trend worse and worse, in order that low quality
Sand material produces the concrete of acceptable operation performance, it is necessary to add anti-mud agent and slump retaining agent thereto.
Current anti-mud agent and slump retaining agent are divided into two kinds of inorganic species and high molecular polymerization class.Inorganic species effect is very single
One, the soil of certain composition is only applicable to, very poor for low quality sand material adaptability, volume is not easily controlled, and coagulation is autochthonal
Problem is more during production；The most complex process of high molecular polymerization class, it is high to equipment requirement, and there is pollution to produce, the anti-mud of synthesis
Agent and slump retaining agent need and polycarboxylate water-reducer is compounded so that concrete production process is numerous and diverse.
The content of the invention
In view of this, it is an object of the invention to provide a kind of anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent and its preparation side
Method, it is adaptable to various soil, pollution-free generation.
A kind of anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent, includes the raw material of following parts by weight：
Preferably, the polyethenoxy ether class monomer is methyl allyl polyoxyethylene ether or prenol polyoxyethylene
Ether.
Preferably, the phosphoric acid salt material is sodium hypophosphite.
Preferably, the acrylic monomer is selected from the one or more in acrylic acid, methacrylic acid, acrylamide.
Preferably, the acrylic ester monomer is selected from hydroxy-ethyl acrylate, hydroxypropyl acrylate, methyl methacrylate
In one or more.
Preferably, the vinyl-based cationic monomer is dimethyl diallyl ammonium chloride or dimethylaminoethyl acrylate methyl ammonia
Ethyl ester.
Preferably, the oxidant is hydrogen peroxide or ammonium persulfate
Preferably, the reducing agent is one kind in sodium hydrogensulfite, ascorbic acid
Preferably, the dispersant is ATMP, diethylene triamine pentamethylene phosphonic or SN5040.
Present invention also offers a kind of anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent, comprise the following steps：
A) first part of deionized water, polyethenoxy ether class monomer, phosphoric acid salt are added in reactor, stirring makes its molten
Solution, obtains the first mixed liquor；
B) acrylic monomer, the vinyl-based cationic monomer of acrylic ester monomer are dissolved in second part of deionized water
In, it is made into the second mixed liquor；
Oxidant is dissolved in the 3rd part of deionized water, the 3rd mixed liquor is made into；
Dissolve reduce agent in the 4th part of deionized water, be made into the 4th mixed liquor；
C) first mixed liquor that step a) is obtained is warming up to 40~70 DEG C, described second is then added dropwise thereto and mixes
Conjunction liquid, the 3rd mixed liquor, the 4th mixed liquor, 2~2.5h of time for adding of second mixed liquor, the described 3rd mixes
3~4h of time for adding of liquid and the 4th mixed liquor is closed, insulation reaction 2h is dripped off, dispersant is added, naturally cools to room temperature,
PH is adjusted to 7 with 30wt%NaOH solution, produces anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent.
A kind of anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent that the present invention is provided and preparation method thereof, with polyethenoxy ether class
Monomer, phosphoric acid salt material, acrylic monomer, acrylic ester monomer, vinyl-based cationic monomer are made from raw material
Water reducer has higher water-reducing rate, it is ensured that the excellent service behaviour of concrete, high intensity and excellent durability, and
Water reducer consumption can be reduced in concrete and extends the slump retention time, production cost is greatly reduced.In addition, of the invention
Water reducer be suitable to various soil, there is significant anti-mud to protect the effect of collapsing, and energy-conserving and environment-protective to all soil, production process is without three
Useless discharge.
Embodiment
The invention discloses a kind of anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent and preparation method thereof, those skilled in the art
Present disclosure can be used for reference, technological parameter realization is suitably modified.In particular, the similar replacement and change pair
It is it will be apparent that they are considered as being included in the present invention for those skilled in the art.The method of the present invention and reference are
Through being described by preferred embodiment, related personnel substantially can be not departing from present invention, in spirit and scope to this
Methods and applications described in text are modified or suitably change is with combining, to realize and apply the technology of the present invention.
A kind of anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent that the present invention is provided, includes the raw material of following parts by weight：
In above-mentioned technical proposal, with polyethenoxy ether class monomer, phosphoric acid salt material, acrylic monomer, acrylate
Class monomer, vinyl-based cationic monomer are that water reducer made from raw material has higher water-reducing rate, it is ensured that concrete is excellent
Service behaviour, high intensity and excellent durability, and water reducer consumption can be reduced in concrete and extends the slump
Retention time, greatly reduce production cost.In addition, the water reducer of the present invention is suitable to various soil, have aobvious to all soil
The anti-mud write protects the effect of collapsing, and energy-conserving and environment-protective, production process no waste discharge.
In an embodiment of the present invention, polyethenoxy ether class monomer is that methyl allyl polyoxyethylene ether or prenol are poly-
Oxygen vinethene.
In the present invention, the parts by weight of polyethenoxy ether class monomer are 35~40 parts；In an embodiment of the present invention, gather
The parts by weight of oxygen ethene ether type monomer are 36~39 parts；In other embodiments, the parts by weight of polyethenoxy ether class monomer
For 37~38 parts.
In the present invention, phosphoric acid salt material is sodium hypophosphite.
In the present invention, the parts by weight of phosphoric acid salt material are 0.4~0.6 part；In an embodiment of the present invention, phosphoric acid
The parts by weight of salts substances are 0.45~0.55 part；In other embodiments, the parts by weight of phosphoric acid salt material are 0.48
~0.52 part.
In an embodiment of the present invention, acrylic monomer is selected from one kind in acrylic acid, methacrylic acid, acrylamide
Or it is a variety of；In other embodiments, acrylic monomer is selected from one kind or two in acrylic acid, methacrylic acid, acrylamide
Kind.
In the present invention, the parts by weight of acrylic monomer are 3.2~4 parts；In an embodiment of the present invention, acrylic acid
The parts by weight for being monomer are 3.4~3.8 parts；In other embodiments, the parts by weight of acrylic monomer are 3.5~3.7
Part.
In an embodiment of the present invention, acrylic ester monomer is selected from hydroxy-ethyl acrylate, hydroxypropyl acrylate, methyl-prop
One or more in e pioic acid methyl ester；In other embodiments, acrylic ester monomer is selected from hydroxy-ethyl acrylate, acrylic acid hydroxyl
One or both of propyl ester, methyl methacrylate.
In the present invention, the parts by weight of acrylic ester monomer are 0.8~1.2 part；In an embodiment of the present invention, third
The parts by weight of olefin(e) acid esters monomer are 0.9~1.1 part；In other embodiments, the parts by weight of acrylic ester monomer are
0.95~1.05 part.
In an embodiment of the present invention, vinyl-based cationic monomer is dimethyl diallyl ammonium chloride or metering system
Sour diformazan ammonia ethyl ester.
In the present invention, the parts by weight of vinyl-based cationic monomer are 0.2~0.6 part；In embodiments of the invention
In, the parts by weight of vinyl-based cationic monomer are 0.3~0.5 part；In other embodiments, vinyl-based cationic monomer
Parts by weight be 0.35~0.45 part.
In an embodiment of the present invention, oxidant is hydrogen peroxide or ammonium persulfate.
In the present invention, the parts by weight of oxidant are 0.2~0.4 part；In an embodiment of the present invention, the weight of oxidant
It is 0.25~0.35 part to measure number；In other embodiments, the parts by weight of oxidant are 0.28~0.32 part.
In an embodiment of the present invention, reducing agent is one kind in sodium hydrogensulfite, ascorbic acid.
In the present invention, the parts by weight of reducing agent are 0.02~0.06 part；In an embodiment of the present invention, reducing agent
Parts by weight are 0.03~0.05 part；In other embodiments, the parts by weight of reducing agent are 0.035~0.045 part.
In an embodiment of the present invention, dispersant is ATMP, diethylene triamine pentamethylene phosphonic or
SN5040。
In the present invention, the parts by weight of dispersant are 0.08~0.2 part；In an embodiment of the present invention, dispersant
Parts by weight are 0.12~0.16 part；In other embodiments, the parts by weight of dispersant are 0.13~0.15 part.
Present invention also offers a kind of anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent, comprise the following steps：
A) first part of deionized water, polyethenoxy ether class monomer, phosphoric acid salt are added in reactor, stirring makes its molten
Solution, obtains the first mixed liquor；
B) acrylic monomer, the vinyl-based cationic monomer of acrylic ester monomer are dissolved in second part of deionized water
In, it is made into the second mixed liquor；
Oxidant is dissolved in the 3rd part of deionized water, the 3rd mixed liquor is made into；
Dissolve reduce agent in the 4th part of deionized water, be made into the 4th mixed liquor；
C) first mixed liquor that step a) is obtained is warming up to 40~70 DEG C, described second is then added dropwise thereto and mixes
Conjunction liquid, the 3rd mixed liquor, the 4th mixed liquor, 2~2.5h of time for adding of second mixed liquor, the described 3rd mixes
3~4h of time for adding of liquid and the 4th mixed liquor is closed, insulation reaction 2h is dripped off, dispersant is added, naturally cools to room temperature,
PH is adjusted to 7 with 30wt%NaOH solution, produces anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent.
Wherein, polyethenoxy ether class monomer, phosphoric acid salt material, acrylic monomer, acrylic ester monomer, vinyl
Cationoid monomer, oxidant, reducing agent, dispersant are same as above, will not be repeated here.
Above-mentioned technical proposal, using the method for one-step synthesis, technique is simple, and cost is low；Energy-conserving and environment-protective, production process is without three
Useless discharge, collects anti-mud and guarantor is collapsed and acts on one, adds production efficiency, has saved cost of labor, suitable for industrial applications.
In an embodiment of the present invention, the parts by weight of first part of deionized water are 20~30 parts, second part of deionized water
Parts by weight be 4~6 parts；The parts by weight of 3rd part of deionized water are 2~4 parts, the parts by weight of the 4th part of deionized water
For 2~4 parts.
In order to further illustrate the present invention, the anti-mud collapse protective poly-carboxylic acid provided with reference to embodiment the present invention is efficient
Water reducer is described in detail.
Embodiment 1
The deionized water of 20 parts by weight is added in reactor, the methacrylic polyoxy second of 37.5 parts by weight is added
Alkene ether, the sodium hypophosphite of 0.4 parts by weight, stirring dissolves it, obtains the first mixed liquor；
By the acrylic acid of 3.4 parts by weight, the hydroxy-ethyl acrylate of 0.95 parts by weight, 0.45 parts by weight dimethyl
Diallyl ammonium chloride, which is dissolved in the deionized water of 4 parts by weight, is made into the second mixed liquor；
The hydrogen peroxide of 0.32 parts by weight is dissolved in the deionized water of 2 parts by weight and is made into the 3rd mixed liquor；
The sodium hydrogensulfite of 0.035 parts by weight is dissolved in the deionized water of 4 parts by weight and is made into the 4th mixed liquor；
First mixed liquor is warming up to 60 DEG C, while the second mixed liquor, the 3rd mixed liquor and the 4th mixed liquor, solution is added dropwise
A time for adding 2.5h, solution B and solution C time for adding 3.5h, drip off insulation reaction 2h, add the diethyl of 0.08 parts by weight
The methylenephosphonic acid of alkene triamine five, naturally cools to room temperature, adjusts pH to 7 with 30wt%NaOH solution, produces the anti-poly- carboxylic of mud collapse protection type
Sour high efficiency water reducing agent.
Embodiment 2
The deionized water of 22 parts by weight is added in reactor, the prenol polyoxyethylene of 35 parts by weight is added
Ether, the sodium hypophosphite of 0.45 parts by weight, stirring dissolves it, obtains the first mixed liquor；
By the methacrylic acid of 3.8 parts by weight, the hydroxypropyl acrylate of 1.05 parts by weight, 0.35 parts by weight first
Base acrylic acid diformazan ammonia ethyl ester, which is dissolved in the deionized water of 5 parts by weight, is made into the second mixed liquor；
The ammonium persulfate of 0.28 parts by weight is dissolved in the deionized water of 4 parts by weight and is made into the 3rd mixed liquor；
The ascorbic acid of 0.03 parts by weight is dissolved in the deionized water of 3 parts by weight and is made into the 4th mixed liquor；
First mixed liquor is warming up to 70 DEG C, while the second mixed liquor, the 3rd mixed liquor and the 4th mixed liquor, solution is added dropwise
A time for adding 2h, solution B and solution C time for adding 3.5h, drip off insulation reaction 2h, add the SN5040 of 0.2 parts by weight,
Room temperature is naturally cooled to, pH is adjusted to 7 with 30wt%NaOH solution, produces anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent.
Embodiment 3
The deionized water of 24 parts by weight is added in reactor, the methacrylic polyoxyethylene of 40 parts by weight is added
Ether, the acrylamide of 0.52 parts by weight, stirring dissolves it, obtains the first mixed liquor；
By the acrylic monomer of 3.2 parts by weight, the methyl methacrylate of 1.2 parts by weight, 0.2 parts by weight
Dimethyl diallyl ammonium chloride, which is dissolved in the deionized water of 6 parts by weight, is made into the second mixed liquor；
The hydrogen peroxide of 00.4 parts by weight is dissolved in the deionized water of 3 parts by weight and is made into the 3rd mixed liquor；
The sodium hydrogensulfite of 0.02 parts by weight is dissolved in the deionized water of 2 parts by weight and is made into the 4th mixed liquor；
First mixed liquor is warming up to 60 DEG C, while the second mixed liquor, the 3rd mixed liquor and the 4th mixed liquor, solution is added dropwise
A time for adding 2.1h, solution B and solution C time for adding 3.7h, drip off insulation reaction 2h, add the amino of 0.12 parts by weight
Three methylenephosphonic acids, naturally cool to room temperature, adjust pH to 7 with 30wt%NaOH solution, produce anti-mud collapse protective poly-carboxylic acid efficient
Water reducer.
Embodiment 4
The deionized water of 26 parts by weight is added in reactor, the prenol polyoxyethylene of 39 parts by weight is added
Ether, the sodium hypophosphite of 0.55 parts by weight, stirring dissolves it, obtains the first mixed liquor；
By the acrylic acid of 2 parts by weight, the methacrylic acid of 1.7 parts by weight, 0.4 parts by weight acrylic acid hydroxyl second
Ester, the hydroxypropyl acrylate of 0.4 parts by weight, the dimethylaminoethyl acrylate methyl ammonia ethyl ester of 0.6 parts by weight are dissolved in 4.5 parts by weight
Deionized water in be made into the second mixed liquor；
The ammonium persulfate of 0.2 parts by weight is dissolved in the deionized water of 4 parts by weight and is made into the 3rd mixed liquor；
The ascorbic acid of 0.06 parts by weight is dissolved in the deionized water of 4 parts by weight and is made into the 4th mixed liquor；
First mixed liquor is warming up to 40 DEG C, while the second mixed liquor, the 3rd mixed liquor and the 4th mixed liquor, solution is added dropwise
A time for adding 2.2h, solution B and solution C time for adding 3.3h, drip off insulation reaction 2h, add the diethyl of 0.16 parts by weight
The methylenephosphonic acid of alkene triamine five, naturally cools to room temperature, adjusts pH to 7 with 30wt%NaOH solution, produces the anti-poly- carboxylic of mud collapse protection type
Sour high efficiency water reducing agent.
Embodiment 5
The deionized water of 28 parts by weight is added in reactor, the methacrylic polyoxyethylene of 36 parts by weight is added
Ether, the sodium hypophosphite of 0.48 parts by weight, stirring dissolves it, obtains the first mixed liquor；
By the methacrylic acid of 2 parts by weight, the acrylamide of 2 parts by weight, 0.45 parts by weight acrylic acid hydroxypropyl
Ester, the methyl methacrylate of 0.45 parts by weight, the dimethyl diallyl ammonium chloride of 0.5 parts by weight are dissolved in 5.5 weight
The second mixed liquor is made into the deionized water of number；
The hydrogen peroxide of 0.25 parts by weight is dissolved in the deionized water of 3 parts by weight and is made into the 3rd mixed liquor；
The sodium hydrogensulfite of 0.05 parts by weight is dissolved in the deionized water of 3 parts by weight and is made into the 4th mixed liquor；
First mixed liquor is warming up to 65 DEG C, while the second mixed liquor, the 3rd mixed liquor and the 4th mixed liquor, solution is added dropwise
A time for adding 2.4h, solution B and solution C time for adding 3.5h, drip off insulation reaction 2h, add the amino of 0.13 parts by weight
Three methylenephosphonic acids, naturally cool to room temperature, adjust pH to 7 with 30wt%NaOH solution, produce anti-mud collapse protective poly-carboxylic acid efficient
Water reducer.
Embodiment 6
The deionized water of 30 parts by weight is added in reactor, the prenol polyoxyethylene of 37 parts by weight is added
Ether, the sodium hypophosphite of 0.6 parts by weight, stirring dissolves it, obtains the first mixed liquor；
By the acrylic acid of 1.2 parts by weight, the methacrylic acid of 1.2 parts by weight, the acrylamide of 1.1 parts by weight,
The hydroxy-ethyl acrylate of 0.3 parts by weight, the hydroxypropyl acrylate of 0.4 parts by weight, the methyl methacrylate of 0.4 parts by weight
Ester, the dimethylaminoethyl acrylate methyl ammonia ethyl ester of 0.3 parts by weight are dissolved in the deionized water of 5 parts by weight and are made into the second mixed liquor；
The ammonium persulfate of 0.28 parts by weight is dissolved in the deionized water of 2 parts by weight and is made into the 3rd mixed liquor；
The ascorbic acid of 0.045 parts by weight is dissolved in the deionized water of 2 parts by weight and is made into the 4th mixed liquor；
First mixed liquor is warming up to 45 DEG C, while the second mixed liquor, the 3rd mixed liquor and the 4th mixed liquor, solution is added dropwise
A time for adding 2.3h, solution B and solution C time for adding 4h, drip off insulation reaction 2h, add the SN5040 of 0.15 parts by weight,
Room temperature is naturally cooled to, pH is adjusted to 7 with 30wt%NaOH solution, produces anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent.
Embodiment 7
The deionized water of 25 parts by weight is added in reactor, the methacrylic polyoxyethylene of 38 parts by weight is added
Ether, the sodium hypophosphite of 0.5 parts by weight, stirring dissolves it, obtains the first mixed liquor；
By the acrylic acid of 1.8 parts by weight, the acrylamide of 1.8 parts by weight, 0.5 parts by weight acrylic acid hydroxyl second
Ester, the methyl methacrylate of 0.5 parts by weight, the dimethyl diallyl ammonium chloride of 0.4 parts by weight are dissolved in 5 parts by weight
Deionized water in be made into the second mixed liquor；
The hydrogen peroxide of 0.3 parts by weight is dissolved in the deionized water of 3 parts by weight and is made into the 3rd mixed liquor；
The sodium hydrogensulfite of 0.04 parts by weight is dissolved in the deionized water of 3 parts by weight and is made into the 4th mixed liquor；
First mixed liquor is warming up to 55 DEG C, while the second mixed liquor, the 3rd mixed liquor and the 4th mixed liquor, solution is added dropwise
A time for adding 2.25h, solution B and solution C time for adding 3h, drip off insulation reaction 2h, add the amino three of 0.14 parts by weight
Methylenephosphonic acid, naturally cools to room temperature, adjusts pH to 7 with 30wt%NaOH solution, produces anti-mud collapse protective poly-carboxylic acid and efficiently subtract
Aqua.
1st, net slurry experiment：According to test method as defined in national standard GB8077-2012, experimental group is using bent stockaded village PO42.5 water
Mud, water reducer made from embodiment 7 is added in cement, when respectively 2%, 5%, 8%, is determined after initial flow degree and 60min
Fluidity；Water reducer used in control group see the table below for west card 40%C type water reducer experimental results.
2nd, using water reducer made from bent stockaded village PO42.5 cement and embodiment 7, the preparation of concrete is carried out, water reducer is mixed
Measure as 5% according to GB8076-2008, the present invention carries out performance test to the concrete prepared, and test result see the table below.
As seen from the above table, water reducer produced by the present invention has higher water-reducing rate and relatively low slump-loss rate, makes
The service behaviour for obtaining concrete enters an improvement, and concrete strength and durability increase.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or public to institute using this
The described above for the embodiment opened, enables professional and technical personnel in the field to realize or using the present invention.To these embodiments
A variety of modifications will be apparent for those skilled in the art, and generic principles defined herein can be
In the case of not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to
The embodiments shown herein, and it is to fit to the most wide model consistent with novel features with principles disclosed herein
Enclose.
Claims (10)
1. a kind of anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent, it is characterised in that include the raw material of following parts by weight：
2. anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent as claimed in claim 1, it is characterised in that the polyethenoxy ether class
Monomer is methyl allyl polyoxyethylene ether or isoamyl alcohol polyoxyethylene ether.
3. anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent as claimed in claim 1, it is characterised in that the phosphoric acid salt material
For sodium hypophosphite.
4. anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent as claimed in claim 1, it is characterised in that the acrylic monomer
Selected from acrylic acid, methacrylic acid, the one or more in acrylamide.
5. anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent as claimed in claim 1, it is characterised in that the esters of acrylic acid list
Body is selected from the one or more in hydroxy-ethyl acrylate, hydroxypropyl acrylate, methyl methacrylate.
6. anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent as claimed in claim 1, it is characterised in that the vinyl-based sun from
Sub- monomer is dimethyl diallyl ammonium chloride or dimethylaminoethyl acrylate methyl ammonia ethyl ester.
7. anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent as claimed in claim 1, it is characterised in that the oxidant is peroxide
Change hydrogen or ammonium persulfate.
8. anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent as claimed in claim 1, it is characterised in that the reducing agent is sulfurous
One kind in sour hydrogen sodium, ascorbic acid.
9. anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent as claimed in claim 1, it is characterised in that the dispersant is amino
Three methylenephosphonic acids, diethylene triamine pentamethylene phosphonic or SN5040.
10. a kind of preparation method of anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent as claimed in claim 1, it is characterised in that
Comprise the following steps：
A) first part of deionized water, polyethenoxy ether class monomer, phosphoric acid salt are added in reactor, stirring dissolves it, obtains
To the first mixed liquor；
B) acrylic monomer, the vinyl-based cationic monomer of acrylic ester monomer are dissolved in second part of deionized water, matched somebody with somebody
Into the second mixed liquor；
Oxidant is dissolved in the 3rd part of deionized water, the 3rd mixed liquor is made into；
Dissolve reduce agent in the 4th part of deionized water, be made into the 4th mixed liquor；
C) first mixed liquor that step a) is obtained is warming up to 40~70 DEG C, second mixing is then added dropwise thereto
Liquid, the 3rd mixed liquor, the 4th mixed liquor, 2~2.5h of time for adding of second mixed liquor, the 3rd mixing
3~4h of time for adding of liquid and the 4th mixed liquor, drips off insulation reaction 2h, adds dispersant, naturally cools to room temperature, uses
30wt%NaOH solution adjusts pH to 7, produces anti-mud collapse protective poly-carboxylic acid high efficiency water reducing agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710230199.0A CN106977129A (en) | 2017-04-10 | 2017-04-10 | Anti- mud collapse protective poly-carboxylic acid high efficiency water reducing agent and preparation method thereof |
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| CN201710230199.0A CN106977129A (en) | 2017-04-10 | 2017-04-10 | Anti- mud collapse protective poly-carboxylic acid high efficiency water reducing agent and preparation method thereof |
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| CN106977129A true CN106977129A (en) | 2017-07-25 |
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| CN107987223A (en) * | 2017-11-30 | 2018-05-04 | 湖北工业大学 | A kind of ester modified high-adaptability polycarboxylate water-reducer of alkyl acrylic and preparation method |
| CN108484838A (en) * | 2018-03-21 | 2018-09-04 | 江苏诚意水泥有限公司 | A kind of super collapse protective poly-carboxylic acid series high-performance dehydragent and preparation method thereof |
| CN108892754A (en) * | 2018-05-25 | 2018-11-27 | 北京宝辰联合科技股份有限公司 | A kind of high-efficiency water-reducing agent of poly-carboxylic acid and preparation method thereof |
| CN111116839A (en) * | 2019-12-31 | 2020-05-08 | 陕西友邦新材料科技有限公司 | High slump loss resistant mud resistant polycarboxylate superplasticizer mother solution as well as preparation method and application thereof |
| CN115432953A (en) * | 2022-08-08 | 2022-12-06 | 中交二航武汉港湾新材料有限公司 | Polycarboxylate superplasticizer for micro-expansive type ultrahigh-performance concrete and preparation method and application thereof |
| US11993541B2 (en) * | 2018-12-31 | 2024-05-28 | Sobute New Materials Co., Ltd. | Multitype-adsorptive-group polycarboxylic acid water-reducing agent, method for preparing the same and use thereof |
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| CN107721232A (en) * | 2017-10-26 | 2018-02-23 | 岳阳东方雨虹防水技术有限责任公司 | A kind of large arch dam sustained-release polycarboxylic water reducer and preparation method thereof |
| CN107987223A (en) * | 2017-11-30 | 2018-05-04 | 湖北工业大学 | A kind of ester modified high-adaptability polycarboxylate water-reducer of alkyl acrylic and preparation method |
| CN108484838A (en) * | 2018-03-21 | 2018-09-04 | 江苏诚意水泥有限公司 | A kind of super collapse protective poly-carboxylic acid series high-performance dehydragent and preparation method thereof |
| CN108892754A (en) * | 2018-05-25 | 2018-11-27 | 北京宝辰联合科技股份有限公司 | A kind of high-efficiency water-reducing agent of poly-carboxylic acid and preparation method thereof |
| US11993541B2 (en) * | 2018-12-31 | 2024-05-28 | Sobute New Materials Co., Ltd. | Multitype-adsorptive-group polycarboxylic acid water-reducing agent, method for preparing the same and use thereof |
| CN111116839A (en) * | 2019-12-31 | 2020-05-08 | 陕西友邦新材料科技有限公司 | High slump loss resistant mud resistant polycarboxylate superplasticizer mother solution as well as preparation method and application thereof |
| CN115432953A (en) * | 2022-08-08 | 2022-12-06 | 中交二航武汉港湾新材料有限公司 | Polycarboxylate superplasticizer for micro-expansive type ultrahigh-performance concrete and preparation method and application thereof |
| CN115432953B (en) * | 2022-08-08 | 2023-09-22 | 中交二航武汉港湾新材料有限公司 | Polycarboxylate superplasticizer for micro-expansion type ultra-high performance concrete, and preparation method and application thereof |
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Application publication date: 20170725 |