CN106496445A - A kind of hydrophobic minor comonomer modification viscosity reduction type polycarboxylate water-reducer masterbatch - Google Patents
A kind of hydrophobic minor comonomer modification viscosity reduction type polycarboxylate water-reducer masterbatch Download PDFInfo
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- CN106496445A CN106496445A CN201611003587.7A CN201611003587A CN106496445A CN 106496445 A CN106496445 A CN 106496445A CN 201611003587 A CN201611003587 A CN 201611003587A CN 106496445 A CN106496445 A CN 106496445A
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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
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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)
- 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)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
The invention discloses a kind of hydrophobic minor comonomer modification viscosity reduction type polycarboxylate water-reducer masterbatch.General polycarboxylate water-reducer preparation method is different from, in bed material in addition to 340 ~ 350 parts of polyether macromonomers, 3.0 ~ 8.0 parts of hydrophobic minor comonomers, 1.0 ~ 3.0 parts of unsaturated sulfonic acid class minor comonomers, 7.0 ~ 12.0 parts of acrylic acid is disposably added；After stirring, 2.0 ~ 5.0 parts of hydrogen peroxide are added disposably, then start initiator solution is added dropwise, enter minor comonomer solution；Minor comonomer solution is made up of 28.0 ~ 36.0 parts of acrylic acid and 25 ~ 40 parts of water；After completion of dropping, 1 ~ 2h of automatic heat preserving, after being cooled to 30 degree, adds 6.0 ~ 10.0 parts of liquid caustic soda.This modified mother liquor specific aim can significantly reduce mixture viscosity, improve workability suitable for the high Binder Materials mixture of chip content low water-cement ratio or aggregate.
Description
Technical field
The invention belongs to the technical field of cement-based gelling material polycarboxylate water-reducer, it is adaptable to low water-cement ratio or aggregate
The high Binder Materials mixture of middle chip content, and in particular to a kind of hydrophobic minor comonomer modification viscosity reduction type polycarboxylate water-reducer is female
Material formula.
Background technology
The configuration of low water-cement ratio concrete, i.e. high-grade concrete, has used the glue such as substantial amounts of cement, flyash, breeze
Material, in order to ensure intensity improve, reduce water-cement ratio, increase water reducer consumption, cause fresh concrete viscosity height, poor fluidity,
Service behaviour is poor；Use with a large amount of exploitations of mechanism sandstone, fallen behind due to disintegrating apparatus, be classified not in place, chip contains in aggregate
Amount is high, causes to introduce the fine powder material for not possessing gelling characteristic in concrete, increases the specific surface area of particle in mixture, increase
Particle surface adsorpting lubrication water and water reducer consumption.
105347718 A of CN disclose provide a kind of Viscosity-control type poly carboxylic acid series water reducer for lean glue material concrete and
Preparation method, comprises the following steps：Step one, prepare a kind of cation copolymer；Step 2, copolymerization obtain mixed for lean glue material
The Viscosity-control type poly carboxylic acid series water reducer of solidifying soil.The present invention is by introducing a certain amount of hydrophobic grouping, sun in water reducer molecular structure
The functional groups such as ionic copolymer, play the effect for adjusting the lower concrete viscosity of the water reducer effect.
103788283 A of CN are disclosed the present invention relates to a kind of hydrophobically modified association thickener, by weight meter 28.0-
32.0% raw material and the deionized water of 68.0-72.0% are prepared from, and the raw material is grouped into by following weight meter group：Hydrophily
Monomer 10.0-75.5%, hydrophobic monomer 15.0-85.0%, cross-linking monomer 0-3.0%, the monomer for having the clean property in surface of hydrophobically modified
0-25.0%, emulsifying agent 1. 0-14.0% and initiator 0.1-1.0%.
102504084 A of CN are disclosed the invention provides a kind of high performance concrete curing agent with hydrophobic property
Preparation method, under 70-90 DEG C of temperature conditionss, in organic solvent system, using radical initiator, free crowd and
Into；The present invention can be greatly improved the water retention property of curing compound, and highest suppression efficiency can reach 95%.
Content of the invention
It is female that the technical problem to be solved is to provide a kind of hydrophobic minor comonomer modification viscosity reduction type polycarboxylate water-reducer
Material.
This invention takes sulphonic acids, sulfydryl class chain-transferring agent and sulphonic acids, the binary of carboxylic acids anchoring group is combined, to the greatest extent
Negative function of the hydrophobic group to anchoring in hydrophobic minor comonomer may be eliminated, and from short larger of hydrophobic minor comonomer of molecular weight
Chain and the sterically hindered matching effect of molecular weight polyether macromonomer long-chain branch, to improve the dispersion retentivity of cement slurry.
A kind of hydrophobic minor comonomer modification viscosity reduction type polycarboxylate water-reducer masterbatch, is polymerized by following each components, gross mass
Part is 1000, comprises the following steps that：
1) 340 ~ 350 parts of polyether macromonomers and 200 ~ 250 parts of water are added in reactor, are persistently stirred, until solution is without bright
Aobvious block or sheet material, disposably add 3.0 ~ 8.0 parts of hydrophobic minor comonomers, 1.0 ~ 3.0 parts of unsaturated sulfonic acid class minor comonomers,
7.0 ~ 12.0 parts of acrylic acid；
2) determine temperature in the kettle, control temperature puts into 2.0 ~ 5.0 parts of hydrogen peroxide at 5 ~ 25 DEG C, disposably, then in 10min according to
Secondary start initiator solution and minor comonomer solution is added dropwise；Initiator solution by 0.7 ~ 1.5 part of TGA, 0.6 ~ 1.0 part of Vc and
90 ~ 120 parts of water compositions, minor comonomer solution are made up of 28.0 ~ 38.0 parts of acrylic acid and 25 ~ 40 parts of water；Initiator time for adding ratio
Minor comonomer solution is more 0.5 hour；During dropwise addition, if temperature in the kettle opens cooling water circulation more than 45 DEG C, less than 40 DEG C, Guan Leng
But water circulation；
3) after completion of dropwise addition, 1 ~ 2h is cured, when question response solution temperature is less than 30 DEG C, adds 6 ~ 10 parts of liquid caustic soda, moisturizing stirring is
After even, after standing 10 ~ 15h, get product.
The polyether macromonomer is allyl polyethenoxy ether, methyl allyl polyoxyethylene ether, prenol polyoxy second
One or more compositions of alkene ether, vinyl butyl ether APEO；
The polyether macromonomer considers hydrophobic minor comonomer additional space steric effect on branched structure, excellent from matching effect
Elect as and protect the collapse general polyether macromonomer of ability, i.e. allyl polyethenoxy ether, methyl allyl polyoxyethylene ether, vinyl fourth
One or more compositions of base ether APEO；
The polyether macromonomer cannot be under low water-cement ratio Binder Materials hydrated environment in view of longer polyether macromonomer side chain
Extend, long-chain branch easily crimps winding causes space steric effect to fail, molecule is preferably from molecular structure mechanism of action
The relatively low polyether macromonomer of amount, the i.e. allyl polyethenoxy ether of molecular weight 1500 ~ 2000, methyl allyl polyoxyethylene ether,
One or more compositions of vinyl butyl ether APEO.
It is 27.5% industrial grade hydrogen peroxide that the hydrogen peroxide is mass percent.
The unsaturated sulfonic acid class minor comonomer is sodium vinyl sulfonate, ALS, methylpropene sodium sulfonate, benzene second
One or more compositions of alkene sodium sulfonate, 2- acrylamide-2-methyl propane sulfonics；The unsaturated sulfonic acid class minor comonomer is preferably
The larger minor comonomer of molecular weight, i.e. methylpropene sodium sulfonate, SSS, the one of 2- acrylamide-2-methyl propane sulfonics
Plant or several compositions.
The hydrophobic minor comonomer is double bond containing alkane, silica alkane, the minor comonomer of class containing fluorocarbon chain, i.e. alkyl phenyl polyoxy
Vinethene butenoate, triphenyl ethyl phenoxy ethers methacrylate, EHMA, methacrylic acid 12
Arrcostab, dimethyl silicone polymer monomethacrylates, Hexafluorobutyl mathacrylate, dodecafluoroheptyl methacrylate,
One or more compositions of ten trifluoro monooctyl ester of methacrylic acid；The hydrophobic minor comonomer is preferably that molecular weight is larger possesses certain sky
Between steric effect minor comonomer, i.e. alkyl phenyl polyethylene oxides ether butenoate, triphenyl ethyl phenoxy ethers methacrylic acid
Ester, dimethyl silicone polymer monomethacrylates, dodecafluoroheptyl methacrylate, the one of ten trifluoro monooctyl ester of methacrylic acid
Plant or several compositions.
The minor comonomer solution time for adding is 2.0 ~ 3.0 h.
Polycarboxylate water-reducer of the present invention, improves water reducer by the hydrophobic solvation layer of the hydrophobic minor comonomer formation of introducing
Flowing retentivity, and the introducing diversification anchoring group of unsaturated sulfonic acid class minor comonomer increase anchoring ability.Using hydrophobic little
Monomer modified viscosity reduction type polycarboxylate water-reducer, not only can reduce the viscosity of fresh concrete, concrete is softly improved and easy
Property, can also widen low water binder ratio operability to increase intensity.
The invention has the beneficial effects as follows：
1. sulfonic distribution density on the unsaturated sulfonic acid base minor comonomer for selecting molecular weight larger, as far as possible increase short-chain branch,
To improve adsorption capacity of the diminishing agent molecule in cement particle surface；Control polyether macromonomer molecular weight simultaneously relatively low, think guarantor
Card range of extension of the polyether macromonomer under low water-cement ratio hydrated environment, therefore unsaturated sulfonic acid base minor comonomer and hydrophobic minor comonomer should be use up
Amount chooses the larger minor comonomer of molecular weight, additionally to supplement sterically hindered effect, it is ensured that the diminishing agent molecule branched structure coupling
Rationally collapsed requirement with meeting guarantor.
2. polyether macromonomer solution is alkalescence, is placed in the acrylic acid solution of a part, can effectively reduce bed material in bed material
PH value, partially weakly acidic pH value can increase initiator efficiency of initiation, to improve the conversion ratio of polyether macromonomer；First put in bed material
After unsaturated sulfonic acid class minor comonomer can ensure time for adding leading portion, there is enough chain tra nsfer dosage to guarantee the acroleic acid polymerization that first throws
Form the main chain of appropriate length.
Specific embodiment
Below by example, the present invention will be further elaborated, and the description below is not only for explaining the present invention, right
Content is defined.
Embodiment 1
A kind of hydrophobic minor comonomer modification viscosity reduction type polycarboxylate water-reducer masterbatch, it is characterised in that：The water reducer is by following each components
It is polymerized, raw material gross mass is 1000, and each component and technological parameter are as follows：
Bed material：The vinyl butyl ether APEO of 2000 molecular weight：341, water：225；
Solution is evenly stirred until without obvious bulk or sheet material, disposable addition alkyl phenyl polyethylene oxides ether butenoate,
Methylpropene sodium sulfonate and acrylic acid；
Alkyl phenyl polyethylene oxides ether butenoate：7.6, methylpropene sodium sulfonate：1.3, acrylic acid：7.5；
After above-mentioned material input, disposably add in oxidizing agent solution, 10min and initiator, minor comonomer solution is added dropwise successively, cause
After agent is added dropwise 10min, start minor comonomer solution is added dropwise；
Oxidizing agent solution：Hydrogen peroxide：3.0, water：5；
Initiator：TGA：1.5, Vc：0.62, water：120；
Minor comonomer solution：Acrylic acid：37.8, water：40；
Initiator time for adding：2.5h；
Minor comonomer solution time for adding 2.0h；
Minor comonomer solution and initiator solution are at the uniform velocity added dropwise, and during dropwise addition, if synthesis temperature is more than 45 DEG C, opens cooling water and follow
Ring, less than 40 DEG C, closes cooling water circulation；
Curing time：2h；
When reaction solution temperature is less than 30 degree, liquid caustic soda 7.5 is slowly added to；
Moisturizing：202.18；
10h is stood, is got product.
Embodiment 2
Bed material：The methyl allyl polyoxyethylene ether of 1800 molecular weight：345, water：230；
Solution is evenly stirred until without obvious bulk or sheet material, disposable addition triphenyl ethyl phenoxy ethers methacrylic acid
Ester, SSS and acrylic acid；
Triphenyl ethyl phenoxy ethers methacrylate：6.0, SSS：2.5, acrylic acid：9.2；
After above-mentioned material input, disposably add in oxidizing agent solution, 10min and initiator, minor comonomer solution is added dropwise successively, cause
After agent is added dropwise 10min, start minor comonomer solution is added dropwise；
Oxidizing agent solution：Hydrogen peroxide：4.5, water：10；
Initiator：TGA：1.35, Vc：0.75, water：115；
Minor comonomer solution：Acrylic acid：32.3, water：35；
Initiator time for adding：3.5h；
Minor comonomer solution time for adding 3.0h；
Minor comonomer solution and initiator solution are at the uniform velocity added dropwise, and during dropwise addition, if synthesis temperature is more than 45 DEG C, opens cooling water and follow
Ring, less than 40 DEG C, closes cooling water circulation；
Curing time：1.5h；
When reaction solution temperature is less than 30 degree, liquid caustic soda 8.7 is slowly added to；
Moisturizing：199.7；
12h is stood, is got product.
Embodiment 3
Bed material：The allyl polyethenoxy ether of 1500 molecular weight：348, water：250；
Solution is evenly stirred until without obvious bulk or sheet material, disposable addition ten trifluoro monooctyl ester of methacrylic acid, 2- propylene
Acid amides -2- methyl propane sulfonic acids and acrylic acid；
Ten trifluoro monooctyl ester of methacrylic acid：4.5,2- acrylamide-2-methyl propane sulfonics：3.0, acrylic acid：11.7；
After above-mentioned material input, disposably add in oxidizing agent solution, 10min and initiator, minor comonomer solution is added dropwise successively, cause
After agent is added dropwise 10min, start minor comonomer solution is added dropwise；
Oxidizing agent solution：Hydrogen peroxide：4.8, water：10；
Initiator：TGA：0.89, Vc：0.96, water：95；
Minor comonomer solution：Acrylic acid：28.1, water：30；
Initiator time for adding：3.0h；
Minor comonomer solution time for adding 2.5h；
Minor comonomer solution and initiator solution are at the uniform velocity added dropwise, and during dropwise addition, if synthesis temperature is more than 45 DEG C, opens cooling water and follow
Ring, less than 40 DEG C, closes cooling water circulation；
Curing time：1.0h；
When reaction solution temperature is less than 30 degree, liquid caustic soda 8.0 is slowly added to；
Moisturizing：205.05；
15h is stood, is got product.
Mobility is to evaluate the most important index of workability of concrete, and the patent adopts spreading rate（T50, s）And slump
Divergence（Slump flow, cm）The mobility and viscosity of concrete are evaluated.Wherein, slump flow test has quantified coagulation
Soil overcomes the flow regime after yield stress, viscosity and frictional force under self gravitation effect, and the spreading rate of concrete
（T50, s）Refer to during the measurement slump, be lifted up starting timing from slump cylinder, the extension diameter of concrete reaches
Time used during 50cm, the speed can reflect the plastic viscosity of concrete to a certain extent.Test examples detailed above is hydrophobic respectively
The slump flow test of minor comonomer modification viscosity reduction type polycarboxylate water-reducer masterbatch and common polycarboxylate water-reducer masterbatch, through when collapse and expand
The latitude of emulsion, initial extension speed and 28 days intensity, can reflect the indexs such as the water-reducing rate of water reducer, slump retaining, viscosity, intensity effect.
Impact of the different water reducers to C50 concrete performances
According to spreading rate（T50, s）Contrast, hydrophobic minor comonomer modification viscosity reduction type polycarboxylate water-reducer masterbatch embodiment 1,2,3
The speed for flowing through 500mm is substantially accelerated, and illustrates that its viscosity improvement is obvious；At the beginning of contrast mobility data, embodiment 1,2,3
Beginning mobility is relatively a little bigger compared with ordinary water-reducing agent mother liquor, and protect collapse more notable；28 days intensity under preferable dispersion effect,
Also in increase change.
Claims (6)
1. a kind of hydrophobic minor comonomer modification viscosity reduction type polycarboxylate water-reducer masterbatch, is polymerized by following each components, gross mass part
For 1000, comprise the following steps that：
1) 340 ~ 350 parts of polyether macromonomers and 200 ~ 250 parts of water are added in reactor, are persistently stirred, until solution is without bright
Aobvious block or sheet material, disposably add 3.0 ~ 8.0 parts of hydrophobic minor comonomers, 1.0 ~ 3.0 parts of unsaturated sulfonic acid class minor comonomers,
7.0 ~ 12.0 parts of acrylic acid；
2) determine temperature in the kettle, control temperature puts into 2.0 ~ 5.0 parts of hydrogen peroxide at 5 ~ 25 DEG C, disposably, then in 10min according to
Secondary start initiator solution and minor comonomer solution is added dropwise；Initiator solution by 0.7 ~ 1.5 part of TGA, 0.6 ~ 1.0 part of Vc and
90 ~ 120 parts of water compositions, minor comonomer solution are made up of 28.0 ~ 38.0 parts of acrylic acid and 25 ~ 40 parts of water；Initiator time for adding ratio
Minor comonomer solution is more 0.5 hour；During dropwise addition, if temperature in the kettle opens cooling water circulation more than 45 DEG C, less than 40 DEG C, Guan Leng
But water circulation；
3) after completion of dropwise addition, 1 ~ 2h is cured, when question response solution temperature is less than 30 DEG C, adds 6 ~ 10 parts of liquid caustic soda, moisturizing stirring is
After even, after standing 10 ~ 15h, get product.
2. polycarboxylate water-reducer masterbatch according to claim 1, it is characterised in that the polyether macromonomer is poly- for pi-allyl
Oxygen vinethene, methyl allyl polyoxyethylene ether, isopentenol polyoxyethylene ether, one kind of vinyl butyl ether APEO
Or several compositions.
3. polycarboxylate water-reducer masterbatch according to claim 1, it is characterised in that the hydrogen peroxide for mass percent is
27.5% industrial grade hydrogen peroxide.
4. polycarboxylate water-reducer masterbatch according to claim 1, it is characterised in that the unsaturated sulfonic acid class minor comonomer is
Sodium vinyl sulfonate, ALS, methylpropene sodium sulfonate, SSS, 2- acrylamide-2-methyl propane sulfonics
One or more composition.
5. polycarboxylate water-reducer masterbatch according to claim 1, it is characterised in that the hydrophobic minor comonomer is double bond containing
Alkane, silica alkane or the minor comonomer of class containing fluorocarbon chain.
6. polycarboxylate water-reducer masterbatch according to claim 1, it is characterised in that the minor comonomer solution time for adding is
2.0~3.0 h.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107501479A (en) * | 2017-08-16 | 2017-12-22 | 科之杰新材料集团有限公司 | A kind of preparation method of viscosity reduction type polycarboxylate water-reducer |
| CN107777910A (en) * | 2017-09-28 | 2018-03-09 | 湖北工业大学 | A kind of prefabricated components normal temperature Early-strength polycarboxylate superplasticizer and preparation method |
| CN108299604A (en) * | 2018-02-08 | 2018-07-20 | 吉林众鑫化工集团有限公司 | A kind of polycarboxylic acids thinner and preparation method thereof |
| CN108383954A (en) * | 2018-03-30 | 2018-08-10 | 湖北工业大学 | A kind of viscosity reduction increasing profit preparation method of solid sheet polycarboxylate water-reducer |
| CN108484841A (en) * | 2018-03-30 | 2018-09-04 | 湖北工业大学 | A kind of preparation method of the solid sheet polycarboxylate water-reducer of bulk polymerization |
| CN108822262A (en) * | 2018-05-25 | 2018-11-16 | 湖北工业大学 | 1200 molecular weight polyether polycarboxylate water-reducers of one kind and preparation method |
| CN109053965A (en) * | 2018-09-17 | 2018-12-21 | 山西康力建材有限公司 | A kind of polycarboxylate water-reducer and preparation method thereof modified with high thermal stability |
| CN110240677A (en) * | 2018-11-02 | 2019-09-17 | 湖北工业大学 | A kind of C50-70 self-compacting high-strength concrete both sexes Early-strength polycarboxylate superplasticizer mother liquor |
| CN110305261A (en) * | 2018-10-10 | 2019-10-08 | 湖北工业大学 | A kind of C50-70 self-compacting concrete Early-strength polycarboxylate superplasticizer |
| WO2022033588A1 (en) * | 2020-08-14 | 2022-02-17 | 中国石油化工股份有限公司 | Polymer having dispersing function, oil well cement dispersant, and preparation method therefor and use thereof |
| CN115403297A (en) * | 2022-09-30 | 2022-11-29 | 深圳市五山新材料股份有限公司 | Polycarboxylate superplasticizer for improving workability |
| CN116041004A (en) * | 2022-12-05 | 2023-05-02 | 江苏建苑建筑材料研究所有限责任公司 | Super-early-strength concrete and preparation method thereof |
| CN116693769A (en) * | 2023-06-21 | 2023-09-05 | 贵州天威建材科技有限责任公司 | High-strength concrete viscosity-reducing polycarboxylate superplasticizer and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553413A (en) * | 2013-09-25 | 2014-02-05 | 中国建筑材料科学研究总院 | Viscosity-control type polycarboxylate superplasticizer and preparation method thereof |
| CN103865007A (en) * | 2014-03-17 | 2014-06-18 | 南京瑞迪高新技术有限公司 | Preparation method of viscosity-reduction type polycarboxylate water reducer |
| CN105731863A (en) * | 2014-12-09 | 2016-07-06 | 上海东大化学有限公司 | Viscosity-lowering type polycarboxylic acid water reducing agent and preparation and use methods therefor |
| CN105924592A (en) * | 2016-06-04 | 2016-09-07 | 石家庄市长安育才建材有限公司 | Viscosity-reduction type polycarboxylate water reducer and preparation method thereof |
-
2016
- 2016-11-15 CN CN201611003587.7A patent/CN106496445A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553413A (en) * | 2013-09-25 | 2014-02-05 | 中国建筑材料科学研究总院 | Viscosity-control type polycarboxylate superplasticizer and preparation method thereof |
| CN103865007A (en) * | 2014-03-17 | 2014-06-18 | 南京瑞迪高新技术有限公司 | Preparation method of viscosity-reduction type polycarboxylate water reducer |
| CN105731863A (en) * | 2014-12-09 | 2016-07-06 | 上海东大化学有限公司 | Viscosity-lowering type polycarboxylic acid water reducing agent and preparation and use methods therefor |
| CN105924592A (en) * | 2016-06-04 | 2016-09-07 | 石家庄市长安育才建材有限公司 | Viscosity-reduction type polycarboxylate water reducer and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张明等: "降粘型聚羧酸系减水剂的合成研究", 《硅酸盐通报》 * |
| 王毅等: "低收缩、降粘型聚羧酸减水剂的合成及其应用", 《硅酸盐通报》 * |
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| CN107501479A (en) * | 2017-08-16 | 2017-12-22 | 科之杰新材料集团有限公司 | A kind of preparation method of viscosity reduction type polycarboxylate water-reducer |
| CN107777910A (en) * | 2017-09-28 | 2018-03-09 | 湖北工业大学 | A kind of prefabricated components normal temperature Early-strength polycarboxylate superplasticizer and preparation method |
| CN108299604B (en) * | 2018-02-08 | 2020-04-10 | 吉林众鑫化工集团有限公司 | Polycarboxylic acid viscosity reducer and preparation method thereof |
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Application publication date: 20170315 |