CN110054428A - A kind of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer and preparation method thereof - Google Patents
A kind of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer and preparation method thereof Download PDFInfo
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- CN110054428A CN110054428A CN201910334059.7A CN201910334059A CN110054428A CN 110054428 A CN110054428 A CN 110054428A CN 201910334059 A CN201910334059 A CN 201910334059A CN 110054428 A CN110054428 A CN 110054428A
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- adaptability
- slump
- polycarboxylate water
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- water reducer
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229920005646 polycarboxylate Polymers 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims abstract description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000000178 monomer Substances 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 5
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 11
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000003999 initiator Substances 0.000 claims description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 6
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 claims description 5
- 239000012670 alkaline solution Substances 0.000 claims description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 230000002194 synthesizing effect Effects 0.000 claims description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims 1
- 239000004721 Polyphenylene oxide Substances 0.000 claims 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 2
- 239000004927 clay Substances 0.000 abstract description 2
- 238000007334 copolymerization reaction Methods 0.000 abstract description 2
- 230000000977 initiatory effect Effects 0.000 abstract description 2
- 238000010189 synthetic method Methods 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 11
- 239000004568 cement Substances 0.000 description 9
- 239000002002 slurry Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- SNVLJLYUUXKWOJ-UHFFFAOYSA-N methylidenecarbene Chemical compound C=[C] SNVLJLYUUXKWOJ-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 230000000887 hydrating effect Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2688—Copolymers containing at least three different monomers
- C04B24/2694—Copolymers containing at least three different monomers containing polyether side chains
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of high-adaptability high-thin arch dam high performance water reducing agent of polyocarboxy acid and preparation method thereof, belong to building trade technical field of concrete additives.The water-reducing agent preparation method is under the conditions of room temperature (45 DEG C), using methyl allyl polyoxyethylene ether (TPEG) monomer, acrylicacidandesters class monomer (hydroxy-ethyl acrylate), pass through initiation system (Vc appropriate, hydrogen peroxide, cross ammonium) radical copolymerization is carried out, synthesize this high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer.The polycarboxylate water-reducer that the present invention synthesizes at normal temperature has the characteristics that high adaptation, high guarantor is collapsed and anti-mud, can effectively solve the high problem of sandstone clay content.This synthetic method is proved through Duo Jia synthesis mother liquid producer: simple process, temperature is low, and the time is short, high-efficient, lower production costs, and good to the adaptability of substrate；Raw materials of the present invention are easy to get and no pollution to the environment, cost is relatively low, easy to industrialized production.
Description
Technical field
The present invention relates to building trade technical field of concrete additives, are used for cement slurry, sand in particular to one kind
High-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer and preparation method thereof in slurry, concrete.
Background technique
Increasing with country to infrastructure construction dynamics, demand and performance requirement to concrete rise year by year.Together
Sample, to water-reducing rate is high, volume is low, alkali content is low, the demand of the high-performance water reducing agent of advantages of environment protection also constantly increases
Greatly.As raw material important in concrete --- it is indispensable that concrete high efficiency water reducing agent has become state fundamental construction
New material.
Although the current excellent water-reducing property of polycarboxylate water-reducer is widely recognized as by industry, due to the change of cement
Change, sand, stone material the factors such as clay content so that also to occur slump-loss in practical applications too fast for polycarboxylate water-reducer
The problems such as poor with workability.And as urban congestion phenomenon is increasingly sharpened, fresh concrete is transported to construction site and is often needed
1-2h is wanted, concrete hydrating speed is accelerated under hot weather, causes the absorption to additive obviously to accelerate, causes newly to mix coagulation
Soil loss is too fast normally to be poured, great waste of manpower and material resources.
Furthermore during practical application, there is also bad adaptabilities for poly carboxylic acid series water reducer, and sensitive to soil, guarantor is collapsed
The disadvantages of property is poor, concrete state difference.For problems, many solutions are proposed both at home and abroad.Such as add some surfaces
Activating agent or even polymeric monomer, polyethylene glycol etc. make these surfactants of soil Preferential adsorption；Or when mixed concrete
A large amount of addition retarded adhesive materials；Even some places return to aliphatic and naphthalene water reducer old road up.But these methods are wanted
It is driving in reverse gear or cannot fundamentally solve polycarboxylate water-reducer bad adaptability, to soil sensitive issue.
Therefore, a kind of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer is developed to improve the performance of polycarboxylate water-reducer product
As a kind of urgent task.This product introduces function on polycarboxylic acids macromolecular main chain by catalyst/initiator system appropriate
Monomer has synthesized a kind of high-adaptability, the polycarboxylic acids mother liquor low to soil susceptibility.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of preparation of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer
Method overcomes problems of the prior art and deficiency, to provide a kind of with high-adaptability, high-thin arch dam, dispersion
Have excellent performance, adaptability it is good, and simple process, the high-performance water reducing agent that pollution-free, low energy consumption.
In order to solve the above technical problems, the technical solution of the invention is as follows:
The present invention provides a kind of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer, and the ingredient including following parts by weight is prepared into
It arrives:
Further, the high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer is preferably prepared by the raw material of following parts by weight
It arrives:
Further, the methacrylic polyethers is methyl allyl polyoxyethylene ether (TPEG), the esters monomer
For hydroxy-ethyl acrylate.
Further, the high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer weight average molecular weight is 13000-18000.
Further, the number-average molecular weight of the TPEG is 2200-2600g/mol, and the molecular formula of TPEG is: CH2=C
(CH3) CH2CH2O (CH2CH2O) nCH3, wherein n is positive integer.
Further, the invention discloses a kind of preparation method of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer, the sides
Method the following steps are included:
(1) deionized water of 225 parts by weight, the TPEG of 216 parts of parts by weight are added into three-necked flask；
(2) after solid is completely dissolved, add the hydrogen peroxide of 3.5 parts of parts by weight, the ammonium persulfate of 1.5 parts of parts by weight.Stirring
3-5 minutes；
(3) acrylic acid and hydroxy-ethyl acrylate aqueous solution is added dropwise simultaneously and initiator solution, 2~2.5h is added dropwise；
PH7-8 is adjusted with alkaline solution as needed, the high-adaptability height that weight average molecular weight is 13000-18000 is obtained and protects
Collapse polycarboxylate water-reducer.
Preferably, the weight part ratio of each raw material is acrylic acid: acrylic acid hydroxyl in acrylic acid and hydroxy-ethyl acrylate aqueous solution
Ethyl ester: water=21.6:30:90.
Preferably, the weight part ratio of each raw material are as follows: Vc: mercaptopropionic acid: water=2:2:98.
Preferably, the alkaline solution is one of sodium hydroxide, potassium hydroxide, ethylenediamine or triethanolamine or two
Kind.
Preferably, above-mentioned synthesis process carries out at room temperature, and due to synthesizing self-heat generation, reaction terminates temperature and rises to 35-
45 DEG C, keep the temperature 1-1.5h.
The present invention under the conditions of room temperature (45 DEG C), using methyl allyl polyoxyethylene ether (TPEG) monomer, acrylic acid and
Its esters monomer (hydroxy-ethyl acrylate) carries out radical copolymerization by initiation system appropriate (Vc, hydrogen peroxide cross ammonium),
This high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer is synthesized.High-performance high-slump-retentionpolycarboxylate polycarboxylate water reducer provided by the invention has one
The beneficial technical effect of series:
(1) this high-performance high-slump-retentionpolycarboxylate polycarboxylate water reducer synthesized under cryogenic.Experiment shows the poly- of low temperature synthesis
Carboxylic acid water reducing agent can substitute high―temperature nuclei sample completely
(2) poly carboxylic acid series water reducer synthesized is with volume is few, water-reducing rate is high, slump retaining is good, cement adaptability is wide, anti-mud
The advantages that effect is good.
(3) the low-temperature synthetic method simple process, raw material is cheap to be easy to get, controllably, environmental protection and can reduce production cost.
Detailed description of the invention
Influence Fig. 1 shows water-reducing agent volume to water reducing ratio of cement mortar
Specific embodiment
Embodiment is listed below to further illustrate the present invention, but the present invention is not limited solely to these embodiments.
This high performance water reducing agent of polyocarboxy acid application test is fully according to GB8077-2008 " concrete admixture ".
Embodiment 1
Raw material selection:
Methyl allyl polyoxyethylene ether (TPEG), acrylic acid, hydroxy-ethyl acrylate, hydrogen peroxide, ammonium persulfate, initiator
(Vc, mercaptopropionic acid), deionized water, kaolin, bentonite.
Key instrument and equipment:
Three-necked flask, thermometer, beaker, electric mixer, assay balance, agitator for cement mortar, cement mortar stirring
Machine, concrete mixer
It is specific the preparation method comprises the following steps:
Hydroxy-ethyl acrylate aqueous solution is prepared first, and hydroxy-ethyl acrylate aqueous solution is by acrylic acid: hydroxy-ethyl acrylate: water
=21.6g:30g:90g is formulated.
Then prepare initiator solution, initiator solution is by Vc: mercaptopropionic acid: water=2g:2g:98g is formulated.
The deionized water of 225 (mass fraction, similarly hereinafter) parts is added into three-necked flask, 216 parts of TPEG are completely molten to solid
Xie Hou adds 3.5 parts of hydrogen peroxide, 1.5 parts of ammonium persulfates.Acrylic acid and hydroxy-ethyl acrylate water are added dropwise simultaneously after stirring 3-5 minutes
Solution (acrylic acid: hydroxy-ethyl acrylate: water=21.6:30:90) and initiator solution (Vc: mercaptopropionic acid: water=2；2；
98), 2~2.5h is added dropwise, and synthesis process carries out at room temperature, synthesizes self-heat generation, and reaction terminates temperature and rises to 35-45
DEG C, 1-1.5h is kept the temperature, adjusts pH 7-8 as needed.Obtain high-adaptability high-thin arch dam polycarboxylic acids of the weight average molecular weight 15500
Water-reducing agent.
Embodiment 2
The experiment of 1 different brands cement paste of table
Table 1 is that the net slurry of different cement is tested, and the ratio of mud 0.27, water-reducing agent volume is the 0.2% of cement quality.From table
In as can be seen that the polycarboxylate water-reducer of synthesis has good adaptability to cement, the mobility in net slurry and collapsing property of guarantor compared with
It is good.
Influence of the 2 soil content of table to cement paste
Table 2 is influence of the soil content to cement paste, as can be seen from the table, with the raising of soil content, net slurry
Fluidity after initial and 1h is reduced therewith.But when the content of soil reaches 8%, it still can initially reach 250mm, 1
220mm can be reached after hour.
Embodiment 3
With the increase of volume it can be seen from attached drawing 1, water-reducing rate of the water-reducing agent in mortar is also gradually increased.Subtracting
When aqua dosage is 0.2%, water-reducing rate is up to 27%.
Embodiment 4
3 water-reducing agent of table influences concrete
Table 3 is water-reducing agent to concrete experiments result.As can be seen from Table 3, the increase of soil volume, concrete slump
Loss is gradually increased, but under conditions of soil volume is up to 8%, the initial and 1h slump is respectively 220mm and 210mm, base
This does not lose, and illustrates to protect effect of collapsing fine.And concrete crushing strength loss is smaller.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer, the raw material including following parts by weight are prepared:
2. high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer according to claim 1, it is characterised in that including following parts by weight
Several raw materials are prepared:
3. according to claim 1 or 2 described in any item high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducers, it is characterised in that the first
Base allyl polyether is methyl allyl polyoxyethylene ether (TPEG), and the esters monomer is hydroxy-ethyl acrylate.
4. according to claim 1 or 2 described in any item high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducers, it is characterised in that described
The number-average molecular weight of TPEG is 2200-2600g/mol.
5. high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer according to claim 3, it is characterised in that the high-adaptability is high
Guarantor collapses polycarboxylate water-reducer weight average molecular weight for 13000-18000.
6. a kind of preparation method of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer, the described method comprises the following steps:
(1) deionized water of 225 parts by weight, the TPEG of 216 parts of parts by weight are added into three-necked flask；
(2) after solid is completely dissolved, add the hydrogen peroxide of 3.5 parts of parts by weight, the ammonium persulfate of 1.5 parts of parts by weight, stirring 3-5 divides
Clock；
(3) acrylic acid and hydroxy-ethyl acrylate aqueous solution is added dropwise simultaneously and initiator solution, 2~2.5h is added dropwise；
PH7-8 is adjusted with alkaline solution as needed, it is poly- to obtain the high-adaptability high-thin arch dam that weight average molecular weight is 13000-18000
Carboxylic acid water reducer.
7. the preparation method of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer according to claim 6, it is characterised in that: propylene
The weight part ratio of each raw material is acrylic acid: hydroxy-ethyl acrylate: water=21.6:30:90 in acid and hydroxy-ethyl acrylate aqueous solution.
8. the preparation method of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer according to claim 6, it is characterised in that cause
The weight part ratio of each raw material in agent aqueous solution are as follows: Vc: mercaptopropionic acid: water=2:2:98.
9. the preparation method of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer according to claim 6, it is characterised in that: described
Alkaline solution is one or both of sodium hydroxide, potassium hydroxide, ethylenediamine or triethanolamine.
10. the preparation method of high-adaptability high-slump-retentionpolycarboxylate polycarboxylate water reducer according to claim 6, it is characterised in that: on
It states synthesis process to carry out at room temperature, due to synthesizing self-heat generation, reaction terminates temperature and rises to 35-45 DEG C, keeps the temperature 1-1.5h.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825365A (en) * | 2019-09-12 | 2020-10-27 | 尧柏特种水泥技术研发有限公司 | Sulphoaluminate cement concrete additive |
| CN112159501A (en) * | 2020-09-29 | 2021-01-01 | 武汉义恒达技术服务有限公司 | Polyether macromonomer synthesized polyfermentate water reducing agent and preparation method thereof |
| CN113527589A (en) * | 2021-06-24 | 2021-10-22 | 运城市泓翔建材有限公司 | Polycarboxylate superplasticizer suitable for machine-made sand and preparation method thereof |
| CN115322306A (en) * | 2022-08-31 | 2022-11-11 | 安徽省天齐科技有限公司 | Ultra-long collapse-resistant water reducing agent and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104774293A (en) * | 2014-12-17 | 2015-07-15 | 厦门路桥翔通建材科技有限公司 | Mud-resistant polycarboxylic acid water reducer and preparation method thereof |
| CN105110687A (en) * | 2015-07-30 | 2015-12-02 | 厦门路桥翔通建材科技有限公司 | Mud resisting and slump retaining type polycarboxylic acids water reducer and preparation method thereof |
| CN107987229A (en) * | 2017-12-28 | 2018-05-04 | 联泓(江苏)新材料研究院有限公司 | A kind of collapse protection type high-performance solid polycarboxylate water-reducer and its preparation method and application |
| CN108840587A (en) * | 2018-06-16 | 2018-11-20 | 国电东北环保产业集团有限公司华盈环保材料分公司 | A kind of anti-chamotte mould cement water reducing agent and preparation method thereof |
| WO2020140344A1 (en) * | 2018-12-31 | 2020-07-09 | 江苏苏博特新材料股份有限公司 | Multiple adsorption polycarboxylic acid water-reducer, preparation method therefor and use thereof |
-
2019
- 2019-04-24 CN CN201910334059.7A patent/CN110054428A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104774293A (en) * | 2014-12-17 | 2015-07-15 | 厦门路桥翔通建材科技有限公司 | Mud-resistant polycarboxylic acid water reducer and preparation method thereof |
| CN105110687A (en) * | 2015-07-30 | 2015-12-02 | 厦门路桥翔通建材科技有限公司 | Mud resisting and slump retaining type polycarboxylic acids water reducer and preparation method thereof |
| CN107987229A (en) * | 2017-12-28 | 2018-05-04 | 联泓(江苏)新材料研究院有限公司 | A kind of collapse protection type high-performance solid polycarboxylate water-reducer and its preparation method and application |
| CN108840587A (en) * | 2018-06-16 | 2018-11-20 | 国电东北环保产业集团有限公司华盈环保材料分公司 | A kind of anti-chamotte mould cement water reducing agent and preparation method thereof |
| WO2020140344A1 (en) * | 2018-12-31 | 2020-07-09 | 江苏苏博特新材料股份有限公司 | Multiple adsorption polycarboxylic acid water-reducer, preparation method therefor and use thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825365A (en) * | 2019-09-12 | 2020-10-27 | 尧柏特种水泥技术研发有限公司 | Sulphoaluminate cement concrete additive |
| CN112159501A (en) * | 2020-09-29 | 2021-01-01 | 武汉义恒达技术服务有限公司 | Polyether macromonomer synthesized polyfermentate water reducing agent and preparation method thereof |
| CN113527589A (en) * | 2021-06-24 | 2021-10-22 | 运城市泓翔建材有限公司 | Polycarboxylate superplasticizer suitable for machine-made sand and preparation method thereof |
| CN115322306A (en) * | 2022-08-31 | 2022-11-11 | 安徽省天齐科技有限公司 | Ultra-long collapse-resistant water reducing agent and preparation method thereof |
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