CN106883356A - A kind of preparation method of sustained-release polycarboxylic water reducer - Google Patents
A kind of preparation method of sustained-release polycarboxylic water reducer Download PDFInfo
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- CN106883356A CN106883356A CN201710211831.7A CN201710211831A CN106883356A CN 106883356 A CN106883356 A CN 106883356A CN 201710211831 A CN201710211831 A CN 201710211831A CN 106883356 A CN106883356 A CN 106883356A
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- sustained
- preparation
- water reducer
- release
- dropping liquids
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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
-
- 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
- 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 present invention is a kind of preparation method of sustained-release polycarboxylic water reducer, and its step is as follows：Prepare 1# dropping liquids and 2# dropping liquids, to adding deionized water in reactor during preparation, start stirring, input polycarboxylic acids polymeric monomer, and add maleate and the concentrated sulfuric acid to accelerate polycarboxylic acids polymeric monomer to dissolve, prepared mass percent is 50% 65% solution, oxidant is added after its is to be dissolved, after stirring 3 min 6min, 2# dropping liquids are first at the uniform velocity added dropwise, the interval min of 2min 10 are at the uniform velocity added dropwise 1# dropping liquids again, aging 1h is incubated after dripping off, after add 30% liquid caustic soda its pH value is reached 67, it is supplemented with the sustained-release polycarboxylic water reducer that deionized water obtains 40% 45% solid contents.Adaptability of the present invention is wider, better, and side chain introduces different esters and builds, and the effective group carboxyl for producing water reducer is hydrolyzed in concrete alkaline environment, it is ensured that product sustained release ability.
Description
Technical field
The present invention relates to a kind of preparation method of polycarboxylate water-reducer, particularly a kind of system of sustained-release polycarboxylic water reducer
Preparation Method.
Background technology
The polymeric monomer that existing polycarboxylate water-reducer is mainly distributed using certain molecular weight is made, compared with unification.Using third
The radical polymerizations such as olefin(e) acid, acrylate, esters are to be improved in alkaline environment rate of release；It is water-soluble that reaction bed material is generally polyethers
Liquid, early stage is added dropwise, and for neutral environment, the later stage is sour environment.
Conventional hydrogen peroxide-VC system initiators, its system activity is low, and the initial stage reaches uniform temperature using heating, is applicable model
Enclose narrow.
The content of the invention
The technical problems to be solved by the invention are directed to the problem of prior art presence, there is provided a kind of method is simple, energy
Ensure the preparation method of the sustained-release polycarboxylic water reducer of product sustained release ability.
The technical problems to be solved by the invention are realized by following technical scheme, and the present invention is a kind of sustained release
The preparation method of type polycarboxylate water-reducer, is characterized in：Its step is as follows：Its step is as follows：
（1）Prepare 1# dropping liquids：It is 55%-65%'s that acrylic acid, acrylate and deionized water are mixed to prepare into mass percent
The aqueous solution, wherein acrylic acid, the mass ratio between acrylate and deionized water are 72-180：464-650：288-447；
（2）Prepare 2# dropping liquids：Reducing agent, chain-transferring agent, 30% liquid caustic soda and deionized water are mixed to prepare into mass percent is
Mass ratio between the aqueous solution of 5%-10%, wherein reducing agent, chain-transferring agent, 30% liquid caustic soda and deionized water is 5-10：15-30：
15-30：470-950；
（3）To deionized water is added in reactor, start stirring puts into polycarboxylic acids polymeric monomer, and add maleate and dense sulphur
Acid accelerates the dissolving of polycarboxylic acids polymeric monomer, and it is the solution of 50%-65%, wherein polycarboxylic acids polymeric monomer that mass percent is obtained：Maleic acid
Ester：The mol ratio of the concentrated sulfuric acid is 1：1-2：0.1；Oxidant is added after to be dissolved, after 3 min -6min of stirring, is first at the uniform velocity added dropwise
2# dropping liquids, are spaced 2min-10min and 1# dropping liquids are at the uniform velocity added dropwise again after dripping off, while it is 20 DEG C -60 DEG C to keep reaction temperature,
2# dropping liquids are dripped off in 120min -240min, and 1# dropping liquids are dripped off in 90 min -180min；It is incubated after dripping off aging
1h, adds 30% liquid caustic soda its pH value is reached 6-7 afterwards, is supplemented with the poly- carboxylic of spacetabs type that deionized water obtains 40%-45% solid contents
Sour water reducer.
The oxidizer is 1-50 times of reducing agent total material amount in 2# dropping liquids.
The preparation method of sustained-release polycarboxylic water reducer of the present invention, its further preferred technical scheme is：Institute
It is 0.8-0.6 that polycarboxylic acids polymeric monomer is stated by mol ratio：TPEG-2400 and the TPEG-3000 composition of 0.2-0.4.
TPEG-3000 is isopentenol polyoxyethylene ether -3000, TPEG-2400 be isopentenol polyoxyethylene ether -
2400。
The preparation method of sustained-release polycarboxylic water reducer of the present invention, its further preferred technical scheme is：Step
Suddenly（1）Middle acrylate is in methyl acrylate, butyl acrylate, ethyl acrylate, hydroxy-ethyl acrylate, hydroxypropyl acrylate
One or more.
The preparation method of sustained-release polycarboxylic water reducer of the present invention, its further preferred technical scheme is：Step
Suddenly（2）Middle reducing agent is rongalite and/or vitamin C.
The preparation method of sustained-release polycarboxylic water reducer of the present invention, its further preferred technical scheme is：Step
Suddenly（2）Chain transfer agent is one or more in mercaptopropionic acid, TGA, methylpropenyl sodium sulfonate, acrylic sodium sulfonate.
The preparation method of sustained-release polycarboxylic water reducer of the present invention, its further preferred technical scheme is：Step
Suddenly（3）Middle maleate be it is a kind of in dimethyl maleate, diethyl maleate, dimethyl fumarate, DEF or
It is various.
The preparation method of sustained-release polycarboxylic water reducer of the present invention, its further preferred technical scheme is：Step
Suddenly（3）Middle oxidant is 27.5% hydrogen peroxide, ammonium persulfate, potassium peroxydisulfate.
The preparation method of sustained-release polycarboxylic water reducer of the present invention, its further preferred technical scheme is：Step
Suddenly（3）Middle 2# dropping liquids are dripped off in 200min -240min, and 1# dropping liquids are dripped off in 160min -180min.
The preparation method of sustained-release polycarboxylic water reducer of the present invention, its further preferred technical scheme is：Institute
It is the enamel reaction still equipped with thermometer, agitator, double dropwise adding pipelines and reflux condenser to state reactor.
Compared with prior art, the present invention use the polycarboxylic acids polymeric monomer that is made up of TPEG-3000 and TPEG-2400 for
Raw material, it is better so than individually wider using the TPEG-2400 adaptations of product；Redox in its preparation process is anti-
Should, it can be ensured that radical polymerization is better, while meeting polymerized at normal temperature and ensuring that temperature production is feasible.Side chain is introduced not
Built with ester, the effective group carboxyl for producing water reducer is hydrolyzed in concrete alkaline environment, it is ensured that product sustained release ability.Instead
Add quantitative concentrated hydrochloric acid to form sour environment during answering, and neutralized using liquid caustic soda in the later stage, increase reaction rate and mother liquor
Performance is more preferably.
Specific embodiment
Concrete technical scheme of the invention described further below, is further understood that in order to those skilled in the art
The present invention, without constituting the limitation to its right.
A kind of embodiment 1, preparation method of sustained-release polycarboxylic water reducer, its step is as follows：
（1）Prepare 1# dropping liquids：It is 55%-65%'s that acrylic acid, acrylate and deionized water are mixed to prepare into mass percent
The aqueous solution, wherein acrylic acid, the mass ratio between acrylate and deionized water are 72：464：288；
（2）Prepare 2# dropping liquids：Reducing agent, chain-transferring agent, 30% liquid caustic soda and deionized water are mixed to prepare into mass percent is
Mass ratio between the aqueous solution of 5%-10%, wherein reducing agent, chain-transferring agent, 30% liquid caustic soda and deionized water is 5：15：15：
470；
（3）To adding deionized water in the enamel reaction still equipped with thermometer, agitator, double dropwise adding pipelines and reflux condenser,
Start stirring, puts into polycarboxylic acids polymeric monomer, and adds maleate and the concentrated sulfuric acid to accelerate polycarboxylic acids polymeric monomer to dissolve, and quality is obtained
Percentage is the solution of 50%-65%, wherein polycarboxylic acids polymeric monomer：Maleate：The mol ratio of the concentrated sulfuric acid is 1：1-2：0.1, institute
It is 0.8 that polycarboxylic acids polymeric monomer is stated by mol ratio：0.2 TPEG-2400 and TPEG-3000 composition；Oxidant is added after to be dissolved,
After stirring 3 min, 2# dropping liquids are first at the uniform velocity added dropwise, interval 2min is at the uniform velocity added dropwise 1# dropping liquids again, and 2# dropping liquids are in 210min
Drip off, 1# dropping liquids are dripped off in 180min；Aging 1h is incubated after dripping off, adds 30% liquid caustic soda its pH value is reached 6-7 afterwards, then
Supplement deionized water is the sustained-release polycarboxylic water reducer for obtaining 40%-45% solid contents.Temperature requirement in reaction：Initial reaction stage room
Temperature, is added dropwise heat release, if surpassing 50 DEG C of need opens cooling water temperature, it is ensured that below temperature 60 C.
A kind of embodiment 2, preparation method of sustained-release polycarboxylic water reducer, its step is as follows：
（1）Prepare 1# dropping liquids：It is 55%-65%'s that acrylic acid, acrylate and deionized water are mixed to prepare into mass percent
The aqueous solution, wherein acrylic acid, the mass ratio between acrylate and deionized water are 180： 650： 447；
（2）Prepare 2# dropping liquids：Reducing agent, chain-transferring agent, 30% liquid caustic soda and deionized water are mixed to prepare into mass percent is
Mass ratio between the aqueous solution of 5%-10%, wherein reducing agent, chain-transferring agent, 30% liquid caustic soda and deionized water is 10： 30： 30：
950；
（3）To adding deionized water in the enamel reaction still equipped with thermometer, agitator, double dropwise adding pipelines and reflux condenser,
Start stirring, puts into polycarboxylic acids polymeric monomer, and adds maleate and the concentrated sulfuric acid to accelerate polycarboxylic acids polymeric monomer to dissolve, and quality is obtained
Percentage is the solution of 50%-65%, wherein polycarboxylic acids polymeric monomer：Maleate：The mol ratio of the concentrated sulfuric acid is 1：1-2：0.1, institute
It is 0.7 that polycarboxylic acids polymeric monomer is stated by mol ratio：0.3 TPEG-2400 and TPEG-3000 composition；Oxidant is added after to be dissolved,
After stirring 5min, 2# dropping liquids are first at the uniform velocity added dropwise, are spaced 2min, then 1# dropping liquids are at the uniform velocity added dropwise, 2# dropping liquids are in 240min
Drip off, 1# dropping liquids are dripped off in 180min；Aging 1h is incubated after dripping off, adds 30% liquid caustic soda its pH value is reached 6-7 afterwards, then
Supplement deionized water is the sustained-release polycarboxylic water reducer for obtaining 40%-45% solid contents.Temperature requirement in reaction：Initial reaction stage room
Temperature, is added dropwise heat release, if surpassing 50 DEG C of need opens cooling water temperature, it is ensured that below temperature 60 C.
Embodiment 3, in the preparation method of the sustained-release polycarboxylic water reducer described in embodiment 1 and 2：Acrylate is propylene
One or more in sour methyl esters, butyl acrylate, ethyl acrylate, hydroxy-ethyl acrylate, hydroxypropyl acrylate.
Embodiment 4, in the preparation method of the sustained-release polycarboxylic water reducer described in embodiment 1 and 2：Reducing agent is rongalite
And/or vitamin C.
Embodiment 5, in the preparation method of the sustained-release polycarboxylic water reducer described in embodiment 1 and 2：The chain-transferring agent is
One or more in mercaptopropionic acid, TGA, methylpropenyl sodium sulfonate, acrylic sodium sulfonate.
Embodiment 6, in the preparation method of the sustained-release polycarboxylic water reducer described in embodiment 1 and 2：The oxidant is
27.5% hydrogen peroxide, ammonium persulfate, potassium peroxydisulfate.
Embodiment 7, in the preparation method of the sustained-release polycarboxylic water reducer described in embodiment 1 and 2：The maleate is
One or more in dimethyl maleate, diethyl maleate, dimethyl fumarate, DEF.
A kind of embodiment 8, preparation method of sustained-release polycarboxylic water reducer, its step is as follows：
Prepare 1# dropping liquids：Sequentially add 115.2 parts of acrylic acid, 439 parts of deionized waters, 348 parts of hydroxy-ethyl acrylates and 195 parts
Hydroxypropyl acrylate, is uniformly mixing to obtain 65% aqueous solution as 1# dropping liquids.
Prepare 2# dropping liquids：Sequentially add 760 parts of deionized waters, 10 parts of rongalite and 2 parts of VC, 25 parts of mercaptopropionic acids and 5
Part methylpropenyl sodium sulfonate, 25 part of 30% liquid caustic soda, are uniformly mixing to obtain 6% aqueous solution as 2# dropping liquids.
To the enamel reaction still equipped with thermometer, agitator, double dropwise adding pipelines and reflux condenser（Or glass, stainless steel）
2200 parts of deionized waters of middle addition, start stirring, put into polycarboxylic acids polymeric monomer（1680 parts of TPEG-2400 and 900 part of TPEG-
3000）, add 216 parts of dimethyl maleates, 9.8 parts of concentrated sulfuric acids to stir to solid dissolving.Add after bed material solid dissolving to be dissolved
Enter 25 part 27.5% of hydrogen peroxide, after stirring 5min, start that 2# dropping liquids are at the uniform velocity added dropwise, be spaced 2min, 1# is at the uniform velocity added dropwise and is added dropwise
Liquid, wherein 2# are added dropwise 210min, and 1# is added dropwise 180min.The aging 1h of insulation is dripped off, adds 440 parts of 30% liquid caustic soda to make its pH value=6 afterwards,
The sustained-release polycarboxylic water reducer that 550 parts of deionized waters mix i.e. available 45% solid content is mended afterwards.Temperature requirement in reaction：Instead
Initial stage room temperature is answered, process heat release is added dropwise, if surpassing 50 DEG C of need opens cooling water temperature, it is ensured that below temperature 60 C.
A kind of embodiment 9, preparation method of sustained-release polycarboxylic water reducer, its step is as follows：
Prepare 1# dropping liquids：150 parts of acrylic acid, 420 parts of deionized waters, 500 parts of butyl acrylates are sequentially added, is stirred
1# dropping liquids are to 65% aqueous solution.
Prepare 2# dropping liquids：Sequentially add 500 parts of deionized waters, 6 parts of rongalite, 25 parts of acrylic sodium sulfonates, 25 part 30%
Liquid caustic soda, is uniformly mixing to obtain 7% aqueous solution as 2# dropping liquids.
To the enamel reaction still equipped with thermometer, agitator, double dropwise adding pipelines and reflux condenser（Or glass, stainless steel）
1800 parts of deionized waters of middle addition, start stirring, put into polycarboxylic acids polymeric monomer（1400 parts of TPEG-2400 and 600 part of TPEG-
3000）, add 200 parts of dimethyl maleates, 9.8 parts of concentrated sulfuric acids stir to solid dissolving, prepared mass percent be 63% it is molten
Liquid.25 parts of ammonium persulfates are added after bed material solid dissolving to be dissolved, after stirring 5min, starts that 2# dropping liquids are at the uniform velocity added dropwise, interval
2min, is at the uniform velocity added dropwise 1# dropping liquids, and wherein 2# is added dropwise 210min, and 1# is added dropwise 180min.The aging 1h of insulation is dripped off, 30% liquid is added afterwards
300 parts of alkali makes its pH value=6.5, and the sustained-release polycarboxylic diminishing that 1050 parts of deionized waters mix i.e. available 45% solid content is mended afterwards
Agent.Temperature requirement in reaction：Initial reaction stage room temperature, is added dropwise process heat release, if surpassing 50 DEG C of need opens cooling water temperature, it is ensured that temperature 60
Below DEG C.
A kind of embodiment 10, preparation method of sustained-release polycarboxylic water reducer, its step is as follows：
（4）Prepare 1# dropping liquids：By 390 parts of deionized waters, 100.8 parts of acrylic acid, 364 parts of hydroxy-ethyl acrylates and 120 part third
Olefin(e) acid hydroxypropyl acrylate sequentially adds the aqueous solution for being mixed to prepare that mass percent is 60%.
（5）Prepare 2# dropping liquids：270 parts of deionized waters, 5 parts of rongalite, 15 part of 30% liquid caustic soda and 15 parts of mercaptopropionic acids are successively
Addition is mixed to prepare the aqueous solution that mass percent is 8%；
（6）To in the enamel reaction still equipped with thermometer, agitator, double dropwise adding pipelines and reflux condenser add 1840 parts go from
Sub- water, start stirring, puts into polycarboxylic acids 1920 parts of TPEG-2400 and 600 part of TPEG-3000 of polymeric monomer, adds 144 parts of Malaysias
Dimethyl phthalate, 86 parts of diethyl maleates and 9.8 parts of concentrated sulfuric acid stirrings are to be dissolved, and prepared mass percent is 60% solution, is treated
15 part of 30% hydrogen peroxide is added after dissolving, after 5 min of stirring, 2# dropping liquids is first at the uniform velocity added dropwise, interval 2min is at the uniform velocity added dropwise 1# drops again
Liquid feeding, 2# dropping liquids are dripped off in 200min, and 1# dropping liquids are dripped off in 160min；Aging 1h is incubated after dripping off, is added afterwards
250 part of 30% liquid caustic soda makes its pH value=6.5, then mends the sustained-release polycarboxylic diminishing that 1325 parts of deionized waters obtain solid content 45%
Agent.Temperature requirement in reaction：Initial reaction stage room temperature, be added dropwise heat release, if surpassing 50 DEG C of need opens cooling water temperature, it is ensured that temperature 60 C with
Under.
By sustained-release polycarboxylic water reducer obtained in embodiment 10 after testing, its properties result is as follows：
1st, solid content
M1 refers to sample weight before drying, and M0 is tare weight（That is measuring cup weight）, M2 is weight+tare weight after drying, and V refers to solid content.
, PH and density
3rd, paste flowing degree
Spike, middle, Ji Dong, conch refer to the brand name of cement
4th, (match ratio is cement to concrete performance：II flyash：Sand：Stone=300:60:781:961)
Claims (9)
1. a kind of preparation method of sustained-release polycarboxylic water reducer, it is characterised in that its step is as follows：
(1) 1# dropping liquids are prepared：It is 55%-65%'s that acrylic acid, acrylate and deionized water are mixed to prepare into mass percent
The aqueous solution, wherein acrylic acid, the mass ratio between acrylate and deionized water are 72-180：464-650：288-447；
(2) 2# dropping liquids are prepared：Reducing agent, chain-transferring agent, 30% liquid caustic soda and deionized water are mixed to prepare into mass percent is
Mass ratio between the aqueous solution of 5%-10%, wherein reducing agent, chain-transferring agent, 30% liquid caustic soda and deionized water is 5-10：15-30：
15-30：470-950；
(3) to deionized water is added in reactor, start stirring puts into polycarboxylic acids polymeric monomer, and add maleate and dense sulphur
Acid accelerates the dissolving of polycarboxylic acids polymeric monomer, and it is the solution of 50%-65%, wherein polycarboxylic acids polymeric monomer that mass percent is obtained：Maleic acid
Ester：The mol ratio of the concentrated sulfuric acid is 1：1-2：0.1；Oxidant is added after to be dissolved, after 3 min -6min of stirring, is first at the uniform velocity added dropwise
2# dropping liquids, interval 2min-10min is at the uniform velocity added dropwise 1# dropping liquids again, while it is 20 DEG C -60 DEG C to keep reaction temperature, 2# is added dropwise
Liquid is dripped off in 120min -240min, and 1# dropping liquids are dripped off in 90 min -180min；Aging 1h is incubated after dripping off, is added afterwards
Entering 30% liquid caustic soda makes its pH value reach 6-7, is supplemented with the sustained-release polycarboxylic diminishing that deionized water obtains 40%-45% solid contents
Agent.
2. the preparation method of sustained-release polycarboxylic water reducer according to claim 1, it is characterised in that：The polycarboxylic acids is big
Monomer is 0.8-0.6 by mol ratio：TPEG-2400 and the TPEG-3000 composition of 0.2-0.4.
3. the preparation method of sustained-release polycarboxylic water reducer according to claim 1, it is characterised in that：Step（1）In third
Olefin(e) acid ester is one kind or many in methyl acrylate, butyl acrylate, ethyl acrylate, hydroxy-ethyl acrylate, hydroxypropyl acrylate
Kind.
4. the preparation method of sustained-release polycarboxylic water reducer according to claim 1, it is characterised in that：Step（2）In also
Former agent is rongalite and/or vitamin C.
5. the preparation method of sustained-release polycarboxylic water reducer according to claim 1, it is characterised in that：Step（2）Middle chain
Transfer agent is one or more in mercaptopropionic acid, TGA, methylpropenyl sodium sulfonate, acrylic sodium sulfonate.
6. the preparation method of sustained-release polycarboxylic water reducer according to claim 1, it is characterised in that：Step（3）Middle horse
Carry out acid esters for one or more in dimethyl maleate, diethyl maleate, dimethyl fumarate, DEF.
7. the preparation method of sustained-release polycarboxylic water reducer according to claim 1, it is characterised in that：Step（3）Middle oxygen
Agent is 27.5% hydrogen peroxide, ammonium persulfate, potassium peroxydisulfate.
8. the preparation method of sustained-release polycarboxylic water reducer according to claim 1, it is characterised in that：Step（3）Middle 2#
Dropping liquid is dripped off in 200min -240min, and 1# dropping liquids are dripped off in 160min -180min.
9. the preparation method of sustained-release polycarboxylic water reducer according to claim 1, it is characterised in that：The reactor is
Enamel reaction still equipped with thermometer, agitator, double dropwise adding pipelines and reflux condenser.
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Cited By (10)
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| CN107090062A (en) * | 2017-05-24 | 2017-08-25 | 吉林众鑫化工集团有限公司 | A kind of sustained-release polycarboxylic water reducer and preparation method thereof |
| CN107903362A (en) * | 2017-12-09 | 2018-04-13 | 江苏斯尔邦石化有限公司 | A kind of preparation method of Early-strength polycarboxylate superplasticizer |
| CN108609891A (en) * | 2018-05-04 | 2018-10-02 | 厦门路桥翔通建材科技有限公司 | A kind of polyocarboxy acid type wet mixing mortar plasticizer and preparation method thereof |
| CN111620986A (en) * | 2020-04-30 | 2020-09-04 | 江苏斯尔邦石化有限公司 | Synthetic method of low-sensitivity polycarboxylic acid mother liquor |
| CN112708058A (en) * | 2020-11-03 | 2021-04-27 | 科之杰新材料集团有限公司 | Ether anticorrosion polycarboxylate superplasticizer and preparation method thereof |
| CN112708059A (en) * | 2020-11-03 | 2021-04-27 | 科之杰新材料集团有限公司 | Anti-corrosion polycarboxylic slump retaining agent and preparation method thereof |
| CN112708060A (en) * | 2020-11-03 | 2021-04-27 | 科之杰新材料集团有限公司 | Novel anti-corrosion polycarboxylate superplasticizer and preparation method thereof |
| CN112708061A (en) * | 2020-11-03 | 2021-04-27 | 科之杰新材料集团有限公司 | Ester anti-corrosion polycarboxylate superplasticizer and preparation method thereof |
| CN112708057A (en) * | 2020-11-03 | 2021-04-27 | 科之杰新材料集团有限公司 | High-temperature-resistant anti-corrosion long-acting polycarboxylic acid slump retaining agent and preparation method thereof |
| CN113512154A (en) * | 2021-05-19 | 2021-10-19 | 株洲三亿化学建材科技发展有限公司 | Method for synthesizing solid polycarboxylate superplasticizer |
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Cited By (11)
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| CN107090062A (en) * | 2017-05-24 | 2017-08-25 | 吉林众鑫化工集团有限公司 | A kind of sustained-release polycarboxylic water reducer and preparation method thereof |
| CN107903362A (en) * | 2017-12-09 | 2018-04-13 | 江苏斯尔邦石化有限公司 | A kind of preparation method of Early-strength polycarboxylate superplasticizer |
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| CN111620986A (en) * | 2020-04-30 | 2020-09-04 | 江苏斯尔邦石化有限公司 | Synthetic method of low-sensitivity polycarboxylic acid mother liquor |
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| CN113512154A (en) * | 2021-05-19 | 2021-10-19 | 株洲三亿化学建材科技发展有限公司 | Method for synthesizing solid polycarboxylate superplasticizer |
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