CN108117626A - A kind of high performance water reducing agent of polyocarboxy acid - Google Patents
A kind of high performance water reducing agent of polyocarboxy acid Download PDFInfo
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- CN108117626A CN108117626A CN201711289699.8A CN201711289699A CN108117626A CN 108117626 A CN108117626 A CN 108117626A CN 201711289699 A CN201711289699 A CN 201711289699A CN 108117626 A CN108117626 A CN 108117626A
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/161—Macromolecular compounds comprising sulfonate or sulfate groups
- C04B24/163—Macromolecular compounds comprising sulfonate or sulfate groups obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/165—Macromolecular compounds comprising sulfonate or sulfate groups obtained by reactions only involving carbon-to-carbon unsaturated bonds containing polyether side chains
-
- 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
- C04B2103/0045—Polymers chosen for their physico-chemical characteristics
- C04B2103/0059—Graft (co-)polymers
- C04B2103/006—Comb polymers
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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
Abstract
The invention discloses a kind of high performance water reducing agent of polyocarboxy acid, are made of the raw material of following weight：Isobutene alcohol polyoxyethylene ether, prenol polyvinylether, alkylphenol polyoxyethylene ether, methyl allyl polyoxyethylene ether, halogenated aliphatic acid, sucrose ester, Sodium Allyl Sulfonate, sodium peroxydisulfate, maleic anhydride, tartaric acid, cinnamic acid, sodium hydroxide, thioglycolic acid, triethanolamine and thiocarbamide；The high performance water reducing agent of polyocarboxy acid has the advantages of reducing concrete slump loss, improving concrete flowability.
Description
Technical field
The present invention relates to technical field of concrete additives, and in particular to a kind of high performance water reducing agent of polyocarboxy acid.
Background technology
Water-reducing agent is a kind of environment-friendly type macromolecule formed with alcohol, ether, ester with various activated monomers through esterified graft polymerization
Material, in the case where concrete slump is maintained to be basically unchanged, a kind of concrete that can reduce mixing water amount to be additional
Agent, it in the case of compared with low water-cement ratio, can significantly improve workability, compactness, intensity and the durability of concrete product
Etc. comprehensive performances.With the continuous development of Chinese national economy, the big change of generation occurs for the building trade in corresponding China
Change, the dosage of concrete is continuously increased, and also allowing for concrete admixture becomes essential important set in building trade
/ mono-.Water-reducing agent collapses to guarantor suitable for the engineerings such as various industry and civil buildings, railway, water conservancy, harbour, highway, municipal administration
Property it is more demanding and construction the open hour length commerical ready-mixed concrete, mass concrete, self-leveling concrete, pump concrete and
The special concretes such as high intensity, impervious.But existing concrete slump loss is higher, particularly under the conditions of summer high temperature
Transport and pump concrete, slump-loss is even more serious, to ensure that concrete keeps preferable mobility, is easy to pump and pour
It notes, is often present in work progress plus water remolds concrete phenomenon, so as to affect the intensity of concrete.
The content of the invention
In view of this, it is an object of the present invention to provide a kind of reduction concrete slump loss, concrete flowability is improved
High performance water reducing agent of polyocarboxy acid.
In order to solve the above-mentioned technical problem, the technical scheme is that：
A kind of high performance water reducing agent of polyocarboxy acid is made of the industrial chemicals of following weight：Isobutene alcohol polyoxy second
50-65 parts of alkene ether, 36-40 parts of prenol polyvinylether, 30-38 parts of alkylphenol polyoxyethylene ether, methacrylic polyoxy
27-32 parts of vinethene, 20-35 parts of halogenated aliphatic acid, 17-23 parts of sucrose ester, 1-3 parts of Sodium Allyl Sulfonate, sodium peroxydisulfate
4-15 parts, 10-14 parts of maleic anhydride, 4-6 parts of tartaric acid, 6-9 parts of cinnamic acid, 4-16 parts of sodium hydroxide, thioglycolic acid
1-4 parts of 3-5 parts, 4-15 parts of triethanolamine and thiocarbamide.
Preferably, the maleic anhydride is hydrolysis of polymaleic anhydride and molecular weight is 550.
Preferably, the Sodium Allyl Sulfonate reacts preparation with novalgin for propenyl in reaction kettle, and pass through
The dry powdered crystalline solid formed.
Preferably, the sodium hydroxide that the sodium hydroxide is concentration 2.9-3.5%, pH value is 13.86-13.94 is not
Saturated solution.
A kind of preparation method of high performance water reducing agent of polyocarboxy acid, including following steps：
1) 50-65 parts of isobutene alcohol polyoxyethylene ether, 36-40 parts of prenol polyvinylether, alkyl phenol polyoxy second are taken
85-110 parts of 30-38 parts of alkene ether, 27-32 parts of methyl allyl polyoxyethylene ether and purified water feeding mixers are stirred
Mixing, mixing time 15-20min obtains the first mixed solution, spare；
2) 30-60 parts of 17-23 parts of sucrose ester plus purified water is taken to be mixedly configured into the second mixed solution, it is spare；
3) 20-35 parts of halogenated aliphatic acid, 1-3 parts of Sodium Allyl Sulfonate, 4-15 parts of sodium peroxydisulfate, maleic anhydride are taken
10-14 parts, 4-6 parts of tartaric acid, be stirred mixing in 20-35 parts of feeding mixers of 6-9 parts of cinnamic acid and purified water, stir
Time 15min is mixed, obtains the 3rd mixed solution, it is spare；
4) the first mixed solution that step 1) obtains is sent into reaction kettle and adds in 3-5 parts of thioglycolic acid, three ethyl alcohol
1-4 parts of 4-15 parts of amine and thiocarbamide obtain the 4th mixed solution, spare；
5) the 4th mixed solution for obtaining step 4) is sent into reaction kettle, and by the second mixed solution in 10-15min
It is inside instilled into reaction kettle and is reacted with the 4th mixed solution, and keep the temperature 1-2h, then Temperature fall；It treats warm in reaction kettle
When degree is down to 40-50 DEG C, the 3rd mixed solution that instils into reaction kettle carries out polymerisation, and constant temperature pressurize 2 is small after instillation
When, semi-finished product diminishing agent solution is obtained, it is spare；
6) 4-16 parts of sodium hydroxide is added in into the semi-finished product diminishing agent solution obtained by step 5), and is stirred evenly,
Adjusting pH value is 6-6.5, you can obtains the sustained-release polycarboxylic water reducer of finished product.
Preferably, in the step 4), the second solution is heated to 60-64 DEG C, reaches its multitudinous sugar ester solubility
2.9-3.0.
Preferably, in the step 4), the reaction temperature of reaction kettle is set as 40-55 DEG C, and reaction kettle speed of agitator is
150-180r/min, reaction time 30-40min.
Preferably, in the step 5), instil into anti-kettle the second mixed solution when reaction kettle reaction temperature setting
For 70-95 DEG C, reaction kettle speed of agitator is set as 200-300r/min, and reacting kettle inner pressure is set as 0.3-0.4Mpa, drop
Reaction kettle mixing speed is 150-200r/min during three mixed solution of note, and pressure is set as 0.1-0.2Mpa in reaction kettle,
Instil time 50-60min.
Beneficial effects of the present invention are：Using isobutene alcohol polyoxyethylene ether, prenol polyvinylether, alkyl phenol polyoxy
Vinethene, methyl allyl polyoxyethylene ether and purified water are mixed and carry out the uniform stirring of 15-20min in mixer
Lower to form stable comb shaped molecular structure, can be adsorbed on cement granules makes cement granules show electrical property, cement granules
Between it is mutually exclusive and scattered due to band identical charges, and discharge the excessive moisture between cement granules, and generate water-reduction；And
It is equipped with tartaric acid, cinnamic acid and maleic anhydride isoreactivity monomer and sucrose ester, halogenated aliphatic acid, Sodium Allyl Sulfonate, over cure
Solution made of sour sodium and pure water is sent into reaction kettle and carries out polymerisation with 40-95 DEG C of temperature, and by reaction kettle 150-
The mixing speed of 300r/min, so as to so that activated monomer and ether preferably carry out copolyreaction and makes and it is made to graft in main chain
Side shoot on so that the steric hindrance of polycarboxylic acids molecule is larger, makes the comb structure flexed outward that branch supports for cement
It is scattered to provide sufficient space arrangement effect, by the attraction of the various groups of branch, solid netted structure is formed, so as to anti-
Only concrete disintegration, because from making the slump loss of concrete small, higher diminishing can be kept under different concrete proportionings
Rate and adaptability.
Specific embodiment
Embodiment 1
A kind of high performance water reducing agent of polyocarboxy acid is made of the industrial chemicals of following weight：Isobutene alcohol polyoxy second
65 parts of alkene ether, 36 parts of prenol polyvinylether, 30 parts of alkylphenol polyoxyethylene ether, 27 parts of methyl allyl polyoxyethylene ether,
20 parts of halogenated aliphatic acid, 17 parts of sucrose ester, 1 part of Sodium Allyl Sulfonate, 4 parts of sodium peroxydisulfate, 10 parts of maleic anhydride, 4 parts of tartaric acid,
1 part of 6 parts of cinnamic acid, 4 parts of sodium hydroxide, 3 parts of thioglycolic acid, 4 parts of triethanolamine and thiocarbamide.The maleic anhydride is poly- for hydrolysis
Maleic anhydride and molecular weight are 550.The Sodium Allyl Sulfonate reacts system with novalgin for propenyl in reaction kettle
It is standby, and through the dry powdered crystalline solid formed.The sodium hydroxide that the sodium hydroxide is concentration 2.9%, pH value is 13.86 is not
Saturated solution.
A kind of preparation method of high performance water reducing agent of polyocarboxy acid, comprises the following steps：
1) take 65 parts of isobutene alcohol polyoxyethylene ether, 36 parts of prenol polyvinylether, 30 parts of alkylphenol polyoxyethylene ether,
27 parts of methyl allyl polyoxyethylene ether and 85 parts of feeding mixers of purified water are stirred mixing, and mixing time 15min is obtained
First mixed solution, it is spare；
2) 30 parts of 17 parts of sucrose ester plus purified water is taken to be mixedly configured into the second mixed solution, and second solution is heated
To 60 DEG C, its multitudinous sugar ester solubility is made to reach 2.9, it is spare；
3) 20 parts of halogenated aliphatic acid, 1 part of Sodium Allyl Sulfonate, 4 parts of sodium peroxydisulfate, 10 parts of maleic anhydride, tartaric acid 4 are taken
Mixing is stirred in 20 parts of part, 6 parts of cinnamic acid and purified water feeding mixers, it is molten to obtain the 3rd mixing by mixing time 15min
Liquid, it is spare；
4) the first mixed solution for obtaining step 1) is sent into reaction kettle, and the reaction temperature of reaction kettle is set as 40 DEG C,
Reaction kettle speed of agitator is 150r/min, and adds in 1 part of 3 parts of thioglycolic acid, 4 parts of triethanolamine and thiocarbamide, reaction time
30min obtains the 4th mixed solution, spare；
5) the 4th mixed solution for obtaining step 4) is sent into reaction kettle, and reactor temperature is set as 70 DEG C, reaction
Kettle speed of agitator is set as 200r/min, and reacting kettle inner pressure is set as 0.3Mpa, and the second mixed solution is dripped in 10min
It notes in reaction kettle and is reacted with the 4th mixed solution, and keep the temperature 1h, then Temperature fall；Treat that reactor temperature is down to 40
DEG C when, the 3rd mixed solution that instils into reaction kettle carries out polymerisation, and reaction kettle mixing speed is 150r/min, in reaction kettle
Pressure is set as 0.1Mpa, instil time 50min, when constant temperature pressurize 2 is small after instillation, obtains semi-finished product diminishing agent solution,
It is spare；
6) it is respectively 2.9 and 13.86 concentration and pH value to be added in into the semi-finished product diminishing agent solution obtained by step 5)
4 parts of sodium hydroxide, and stir evenly, it is 6 to adjust pH value, you can obtains the high performance water reducing agent of polyocarboxy acid of finished product.
Embodiment 2
A kind of high performance water reducing agent of polyocarboxy acid is made of the industrial chemicals of following weight：Isobutene alcohol polyoxy second
50 parts of alkene ether, 40 parts of prenol polyvinylether, 38 parts of alkylphenol polyoxyethylene ether, 32 parts of methyl allyl polyoxyethylene ether,
35 parts of halogenated aliphatic acid, 23 parts of sucrose ester, 3 parts of Sodium Allyl Sulfonate, 15 parts of sodium peroxydisulfate, 14 parts of maleic anhydride, tartaric acid 6
Part, 9 parts of cinnamic acid, 16 parts of sodium hydroxide, 5 parts of thioglycolic acid, 15 parts of triethanolamine and 4 parts of thiocarbamide.The maleic anhydride is
Hydrolysis of polymaleic anhydride and molecular weight are 550.The Sodium Allyl Sulfonate is anti-in reaction kettle with novalgin for propenyl
It should prepare, and through the dry powdered crystalline solid formed.The hydroxide that the sodium hydroxide is concentration 3.5%, pH value is 13.94
Sodium unsaturated solution.
A kind of preparation method of high performance water reducing agent of polyocarboxy acid, comprises the following steps：
1) take 50 parts of isobutene alcohol polyoxyethylene ether, 40 parts of prenol polyvinylether, 38 parts of alkylphenol polyoxyethylene ether,
32 parts of methyl allyl polyoxyethylene ether and 110 parts of feeding mixers of purified water are stirred mixing, and mixing time 20min is obtained
It is spare to the first mixed solution；
2) 60 parts of 23 parts of sucrose ester plus purified water is taken to be mixedly configured into the second mixed solution, and second solution is heated
To 64 DEG C, its multitudinous sugar ester solubility is made to reach 3.0, it is spare；
3) 35 parts of halogenated aliphatic acid, 5 parts of Sodium Allyl Sulfonate, 15 parts of sodium peroxydisulfate, 14 parts of maleic anhydride, tartaric acid 6 are taken
Mixing is stirred in 35 parts of part, 9 parts of cinnamic acid and purified water feeding mixers, it is molten to obtain the 3rd mixing by mixing time 15min
Liquid, it is spare；
4) the first mixed solution for obtaining step 1) is sent into reaction kettle, and the reaction temperature of reaction kettle is set as 55 DEG C,
Reaction kettle speed of agitator is 180r/min, and adds in 4 parts of 5 parts of thioglycolic acid, 15 parts of triethanolamine and thiocarbamide, reaction time
40min obtains the 4th mixed solution, spare；
5) the 4th mixed solution for obtaining step 4) is sent into reaction kettle, and reactor temperature is set as 95 DEG C, reaction
Kettle speed of agitator is set as 300r/min, and reacting kettle inner pressure is set as 0.4Mpa, and the second mixed solution is dripped in 15min
It notes in reaction kettle and is reacted with the 4th mixed solution, and keep the temperature 1h, then Temperature fall；Treat that reactor temperature is down to 50
DEG C when, the 3rd mixed solution that instils into reaction kettle carries out polymerisation, and reaction kettle mixing speed is 200r/min, in reaction kettle
Pressure is set as 0.2Mpa, instil time 60min, when constant temperature pressurize 2 is small after instillation, obtains semi-finished product diminishing agent solution,
It is spare；
6) it is respectively 3.5 and 13.94 concentration and pH value to be added in into the semi-finished product diminishing agent solution obtained by step 5)
16 parts of sodium hydroxide, and stir evenly, it is 6.5 to adjust pH value, you can obtains the sustained-release polycarboxylic water reducer of finished product.
Embodiment 3
A kind of high performance water reducing agent of polyocarboxy acid is made of the industrial chemicals of following weight：Isobutene alcohol polyoxy second
57.5 parts of alkene ether, 38 parts of prenol polyvinylether, 34 parts of alkylphenol polyoxyethylene ether, methyl allyl polyoxyethylene ether 29.5
Part, 27.5 parts of halogenated aliphatic acid, 19.5 parts of sucrose ester, 2 parts of Sodium Allyl Sulfonate, 9.5 parts of sodium peroxydisulfate, 12 parts of maleic anhydride,
2.5 parts of 5 parts of tartaric acid, 7.5 parts of cinnamic acid, 10 parts of sodium hydroxide, 4 parts of thioglycolic acid, 9.5 parts of triethanolamine and thiocarbamide.Institute
State that maleic anhydride is hydrolysis of polymaleic anhydride and molecular weight is 550.The Sodium Allyl Sulfonate is propenyl and novalgin
It reacts and prepares in reaction kettle, and through the dry powdered crystalline solid formed.The sodium hydroxide is concentration 3.2%, pH value is
13.9 sodium hydroxide unsaturated solution.
A kind of preparation method of high performance water reducing agent of polyocarboxy acid, comprises the following steps：
Take 57.5 parts of isobutene alcohol polyoxyethylene ether, 38 parts of prenol polyvinylether, 34 parts of alkylphenol polyoxyethylene ether,
29.5 parts of methyl allyl polyoxyethylene ether and 97.5 parts of feeding mixers of purified water are stirred mixing, mixing time 17min,
The first mixed solution is obtained, it is spare；
2) 45 parts of 19.5 parts of sucrose ester plus purified water is taken to be mixedly configured into the second mixed solution, and second solution is added
Heat makes its multitudinous sugar ester solubility reach 2.95 to 62 DEG C, spare；
3) 27.5 parts of halogenated aliphatic acid, 2 parts of Sodium Allyl Sulfonate, 9.5 parts of sodium peroxydisulfate, 12 parts of maleic anhydride, winestone are taken
5 parts of acid is stirred mixing in 27.5 parts of feeding mixers of 7.5 parts of cinnamic acid and purified water, mixing time 15min, obtains the
Three mixed solutions, it is spare；
4) the first mixed solution for obtaining step 1) is sent into reaction kettle, and the reaction temperature of reaction kettle is set as 47.5
DEG C, reaction kettle speed of agitator is 165r/min, and adds in 2.5 parts of 4 parts of thioglycolic acid, 9.5 parts of triethanolamine and thiocarbamide, is reacted
Time 35min obtains the 4th mixed solution, spare；
5) the 4th mixed solution for obtaining step 4) is sent into reaction kettle, and reactor temperature is set as 82.5 DEG C, instead
Kettle speed of agitator is answered to be set as 250r/min, reacting kettle inner pressure is set as 0.35Mpa, and by the second mixed solution in 10min
It is inside instilled into reaction kettle and is reacted with the 4th mixed solution, and keep the temperature 1h, then Temperature fall；Treat that reactor temperature drops
During to 45 DEG C, the 3rd mixed solution that instils into reaction kettle carries out polymerisation, and reaction kettle mixing speed is 175r/min, is reacted
Pressure is set as 0.15Mpa in kettle, and instil time 55min, when constant temperature pressurize 2 is small after instillation, obtains semi-finished product water-reducing agent
Solution, it is spare；
6) it is respectively 3.2 and 13.90 concentration and pH value to be added in into the semi-finished product diminishing agent solution obtained by step 5)
10 parts of sodium hydroxide, and stir evenly, it is 6 to adjust pH value, you can obtains the high performance water reducing agent of polyocarboxy acid of finished product.
Experimental example
Experimental subjects：Using water-reducing agent made from the embodiment of the present invention 1-3 as experimental group one, experimental group two, real
Group three is tested, chooses the BHY-2 sustained-release polycarboxylic water reducers group as a comparison in city, chooses the cement of same specification label,
It is divided into four components, is separately added into the water-reducing agent used in experimental group one, experimental group two, experimental group three and contrast groups.
Experimental method：
The test of concrete fluidity, testing standard are determined according to the phase Crossing South of GB/T2419-2005, the coagulation that will be stirred
Soil is packed among the mating taper die trial of concrete fluidity tester, lifts die trial after scraping flat surface, open flow degree measures
Instrument, concrete stream measures 2~3 different directions maximum gauges into round pie slide calliper rule or ruler after vibrating 25 times；
The test of concrete slump, relevant regulations of the testing standard according to GB/T20080-2016 are mixed by what is be stirred
Solidifying soil is packed into concrete slump cylinder, and the concrete mix for making interior Sheng using charge cask uniformly flows out, it is not stratified once
Filling should be completed to completely from pan feeding to end-of-fill is started in 1.5min, and not impose any tamping or vibration, be struck off with knife
The clout of concrete top is had been filled in slump cone, after it is made to be flushed with the upper limb of slump cone, with i.e. by slump cone edge
Vertical direction is evenly lifted up the height of 30cm, and mention time is preferably controlled in 3s or so.After the stopping flowing of concrete,
Circular maximum gauge and the diameter with maximum gauge in vertical direction is unfolded in measurement, is measured once when measuring diameter；
The test of the compressive strength rate of concrete, relevant regulations of the testing standard according to GB50107-2010, by concrete
The length of side is made and is the cube specimen of 150MM, and tests its resistance to compression with concrete pressure testing machine in corresponding age respectively
Intensity；
The test of concrete water-reducing ratio, relevant regulations of the testing standard according to GB807621997, identical normal concrete
It is water-reducing rate the ratio between with the difference and normal concrete unit consumption of water of mixing Fresh Concrete with Admixtures unit consumption of water.
Experiment purpose：Above-mentioned experimental group and the performance of contrast groups water-reducing agent are tested, including the slump, water-reducing rate, pressure resistance
Degree ratio, fluidity, and by result record in the following table.
With reference in experimental group in upper table one, experimental group two, experimental group three and contrast groups, record respectively on fluidity,
The experimental data of slump degree of loss, compressive strength rate and water-reducing rate is compared by the experimental data to upper table, can be obtained
The high performance water reducing agent of polyocarboxy acid gone out in the present invention has better slump holding capacity and fluidity, while has concrete
There is higher compressive strength rate.
Beneficial effects of the present invention are：Using isobutene alcohol polyoxyethylene ether, prenol polyvinylether, alkyl phenol polyoxy
Vinethene, methyl allyl polyoxyethylene ether and purified water are mixed and carry out the uniform stirring of 15-20min in mixer
Lower to form stable comb shaped molecular structure, can be adsorbed on cement granules makes cement granules show electrical property, cement granules
Between it is mutually exclusive and scattered due to band identical charges, and discharge the excessive moisture between cement granules, and generate water-reduction；And
It is equipped with tartaric acid, cinnamic acid and maleic anhydride isoreactivity monomer and sucrose ester, halogenated aliphatic acid, Sodium Allyl Sulfonate, over cure
Solution made of sour sodium and pure water is sent into reaction kettle and carries out polymerisation with 40-95 DEG C of temperature, and by reaction kettle 150-
The mixing speed of 300r/min, so as to so that activated monomer and ether preferably carry out copolyreaction and makes and it is made to graft in main chain
Side shoot on so that the steric hindrance of polycarboxylic acids molecule is larger, makes the comb structure flexed outward that branch supports for cement
It is scattered to provide sufficient space arrangement effect, by the attraction of the various groups of branch, solid netted structure is formed, so as to anti-
Only concrete disintegration, because that from making the slump loss of concrete small, under different concrete proportionings higher guarantor can be kept to collapse
Property and adaptability.
Certainly, representative instance simply of the invention more than, in addition, the present invention can also have other a variety of specific implementations
Mode, all technical solutions formed using equivalent substitution or equivalent transformation, is all fallen within the scope of protection of present invention.
Claims (8)
1. a kind of high performance water reducing agent of polyocarboxy acid, it is characterised in that：Raw material including following weight is made：Isobutene alcohol
50-65 parts of polyoxyethylene ether, 36-40 parts of prenol polyvinylether, 30-38 parts of alkylphenol polyoxyethylene ether, methallyl
27-32 parts of base polyoxyethylene ether, 20-35 parts of halogenated aliphatic acid, 17-23 parts of sucrose ester, 1-3 parts of Sodium Allyl Sulfonate, mistake
It is 4-15 parts of sodium sulphate, 10-14 parts of maleic anhydride, 4-6 parts of tartaric acid, 6-9 parts of cinnamic acid, 4-16 parts of sodium hydroxide, thio
1-4 parts of 3-5 parts of glycolic, 4-15 parts of triethanolamine and thiocarbamide.
2. a kind of high performance water reducing agent of polyocarboxy acid as described in claim 1, it is characterised in that：The maleic anhydride is poly- for hydrolysis
Maleic anhydride and molecular weight are 550.
3. a kind of high performance water reducing agent of polyocarboxy acid as described in claim 1, it is characterised in that：The Sodium Allyl Sulfonate is third
Enol reacts preparation with novalgin in reaction kettle, and through the dry powdered crystalline solid formed.
4. a kind of high performance water reducing agent of polyocarboxy acid as described in claim 1, it is characterised in that：The sodium hydroxide is concentration
2.9-3.5%, the sodium hydroxide unsaturated solution that pH value is 13.86-13.94.
5. a kind of preparation method of high performance water reducing agent of polyocarboxy acid, including following steps：
1) 50-65 parts of isobutene alcohol polyoxyethylene ether, 36-40 parts of prenol polyvinylether, alkylphenol polyoxyethylene ether are taken
30-38 parts, 85-110 parts of feeding mixers of 27-32 parts of methyl allyl polyoxyethylene ether and purified water be stirred mixing,
Mixing time 15-20min obtains the first mixed solution, spare；
2) 30-60 parts of 17-23 parts of sucrose ester plus purified water is taken to be mixedly configured into the second mixed solution, it is spare；
3) 20-35 parts of halogenated aliphatic acid, 1-3 parts of Sodium Allyl Sulfonate, 4-15 parts of sodium peroxydisulfate, maleic anhydride 10-14 are taken
Mixing, mixing time are stirred in part, 4-6 parts of tartaric acid, 6-9 parts of cinnamic acid and 20-35 parts of feeding mixers of purified water
15min obtains the 3rd mixed solution, spare；
4) the first mixed solution that step 1) obtains is sent into reaction kettle and adds in 3-5 parts of thioglycolic acid, triethanolamine
4-15 parts obtain the 4th mixed solution with 1-4 parts of thiocarbamide, spare；
5) the 4th mixed solution for obtaining step 4) is sent into reaction kettle, and the second mixed solution is dripped in 10-15min
It notes in reaction kettle and is reacted with the 4th mixed solution, and keep the temperature 1-2h, then Temperature fall；Treat that reactor temperature drops
During to 40-50 DEG C, the 3rd mixed solution that instils into reaction kettle carries out polymerisation, when constant temperature pressurize 2 is small after instillation,
Semi-finished product diminishing agent solution is obtained, it is spare；
6) 4-16 parts of sodium hydroxide is added in into the semi-finished product diminishing agent solution obtained by step 5), and is stirred evenly, is adjusted
PH value is 6-6.5, you can obtains the sustained-release polycarboxylic water reducer of finished product.
6. a kind of preparation method of high performance water reducing agent of polyocarboxy acid as claimed in claim 5, it is characterised in that：The step 2)
In, the second solution is heated to 60-64 DEG C, its multitudinous sugar ester solubility is made to reach 2.9-3.0.
7. a kind of preparation method of high performance water reducing agent of polyocarboxy acid as claimed in claim 5, it is characterised in that：The step 4)
In, the reaction temperature of reaction kettle is set as 40-55 DEG C, and reaction kettle speed of agitator is 150-180r/min, reaction time 30-
40min。
8. a kind of preparation method of high performance water reducing agent of polyocarboxy acid as claimed in claim 5, it is characterised in that：The step 5)
In, instil into anti-kettle the second mixed solution when reaction kettle reaction temperature be set as 70-95 DEG C, reaction kettle speed of agitator is set
Be set to 200-300r/min, reacting kettle inner pressure is set as 0.3-0.4Mpa, instil three mixed solutions when reaction kettle stir
Speed is 150-200r/min, and pressure is set as 0.1-0.2Mpa in reaction kettle, and instil time 50-60min.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133697A (en) * | 2018-08-03 | 2019-01-04 | 武汉苏博新型建材有限公司 | A kind of Compositional type polycarboxylate water-reducer and the preparation method for preparing polycarboxylate water-reducer in the Compositional type polycarboxylate water-reducer |
| CN109762160A (en) * | 2018-12-25 | 2019-05-17 | 常熟耐素生物材料科技有限公司 | A kind of polycarboxylate water-reducer and preparation method thereof |
| CN110240697A (en) * | 2019-06-19 | 2019-09-17 | 北京金隅水泥节能科技有限公司 | Function monomer and preparation method thereof, polycarboxylate water-reducer and its preparation method and application |
| CN115260410A (en) * | 2022-08-29 | 2022-11-01 | 张立晟 | Preparation method of multifunctional polycarboxylate superplasticizer excitant |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434465A (en) * | 2007-11-15 | 2009-05-20 | 武汉格瑞林建材科技股份有限公司 | Design and preparation of coagulation time controllable high performance polycarboxylic acid water reducing agent |
| CN101538134A (en) * | 2009-04-14 | 2009-09-23 | 大连市建筑科学研究设计院股份有限公司 | Polyether class polycarboxylic acid high-efficiency water reducing agent and preparation method thereof |
| CN101974135A (en) * | 2010-10-15 | 2011-02-16 | 北京工业大学 | Normal-temperature synthesis method for polycarboxylic acid water-reducing agent |
| CN102557513A (en) * | 2012-01-06 | 2012-07-11 | 中建商品混凝土有限公司 | Crotonic acid system polycarboxylic acid high-performance water reducer |
| CN102815882A (en) * | 2012-08-03 | 2012-12-12 | 山西科腾环保科技有限公司 | High-performance water reducer of polycarboxylic acid, and preparation method thereof |
| CN104140503A (en) * | 2014-07-30 | 2014-11-12 | 江西格雷斯科技股份有限公司 | Method for synthesizing high-water-reduction high-slump-retaining high-performance polycarboxylate water reducer at normal temperature |
-
2017
- 2017-12-07 CN CN201711289699.8A patent/CN108117626A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434465A (en) * | 2007-11-15 | 2009-05-20 | 武汉格瑞林建材科技股份有限公司 | Design and preparation of coagulation time controllable high performance polycarboxylic acid water reducing agent |
| CN101538134A (en) * | 2009-04-14 | 2009-09-23 | 大连市建筑科学研究设计院股份有限公司 | Polyether class polycarboxylic acid high-efficiency water reducing agent and preparation method thereof |
| CN101974135A (en) * | 2010-10-15 | 2011-02-16 | 北京工业大学 | Normal-temperature synthesis method for polycarboxylic acid water-reducing agent |
| CN102557513A (en) * | 2012-01-06 | 2012-07-11 | 中建商品混凝土有限公司 | Crotonic acid system polycarboxylic acid high-performance water reducer |
| CN102815882A (en) * | 2012-08-03 | 2012-12-12 | 山西科腾环保科技有限公司 | High-performance water reducer of polycarboxylic acid, and preparation method thereof |
| CN104140503A (en) * | 2014-07-30 | 2014-11-12 | 江西格雷斯科技股份有限公司 | Method for synthesizing high-water-reduction high-slump-retaining high-performance polycarboxylate water reducer at normal temperature |
Non-Patent Citations (1)
| Title |
|---|
| 倪根珊: "《药物分类及药物学概要》", 30 April 1988, 解放军出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133697A (en) * | 2018-08-03 | 2019-01-04 | 武汉苏博新型建材有限公司 | A kind of Compositional type polycarboxylate water-reducer and the preparation method for preparing polycarboxylate water-reducer in the Compositional type polycarboxylate water-reducer |
| CN109762160A (en) * | 2018-12-25 | 2019-05-17 | 常熟耐素生物材料科技有限公司 | A kind of polycarboxylate water-reducer and preparation method thereof |
| CN110240697A (en) * | 2019-06-19 | 2019-09-17 | 北京金隅水泥节能科技有限公司 | Function monomer and preparation method thereof, polycarboxylate water-reducer and its preparation method and application |
| CN115260410A (en) * | 2022-08-29 | 2022-11-01 | 张立晟 | Preparation method of multifunctional polycarboxylate superplasticizer excitant |
| CN115260410B (en) * | 2022-08-29 | 2023-10-03 | 张立晟 | Preparation method of multifunctional polycarboxylate water reducer excitant |
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