CN108659179A - A kind of polycarboxylate water-reducer and its synthetic method - Google Patents
A kind of polycarboxylate water-reducer and its synthetic method Download PDFInfo
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- CN108659179A CN108659179A CN201810616515.2A CN201810616515A CN108659179A CN 108659179 A CN108659179 A CN 108659179A CN 201810616515 A CN201810616515 A CN 201810616515A CN 108659179 A CN108659179 A CN 108659179A
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- solution
- lysate
- acid
- acrylic acid
- ammonium persulfate
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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
- C04B24/16—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
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
Abstract
The invention discloses a kind of synthetic methods of polycarboxylate water-reducer, include the following steps：S1, raw material, S2, the solution that various raw materials are configured to respective concentration；S3, TPEG lysates, metering system sulphonic acid sodium lysate, ammonium persulfate lysate, polyethylene propylene propyl ester polymeric monomer lysate, thioacetic acid lysate are uniformly mixed according to following volumes ratio：TPEG lysates 45, metering system sulphonic acid sodium lysate 12, ammonium persulfate lysate 12, polyethylene propylene propyl ester polymeric monomer lysate 24；Then it stirs evenly, and is warming up to 70 75 DEG C, then to above-mentioned mixed solution and dripping acrylic acid solution, hydrogen peroxide solution, dropwise addition should be completed in 34 hours；S4, the solution in such as S3 is added dropwise in mercaptoacetic acid solution, dripping quantity is the 0.05 0.1% of S3 total solution volumes, and dropwise addition should be completed in 3.5 4 hours；Then 70 75 DEG C are kept to react 35 hours.The invention also discloses the polycarboxylate water-reducers prepared using above-mentioned synthetic method.
Description
Technical field
The present invention relates to a kind of polycarboxylate water-reducers, more particularly to a kind of polycarboxylate water-reducer and its synthetic method.
Background technology
Polycarboxylate water-reducer（Polycarboxylate Superplasticizer）It is a kind of high-performance water reducing agent, is water
A kind of cement dispersants in cement concrete utilization.It is widely used in the engineerings such as highway, bridge, dam, tunnel, skyscraper.
In many concrete works, naphthalene system etc. tradition high-effective concrete due to technical performance limitation, more and more not
Requirement of engineering can be met.The water-reducing agent of new generation being at home and abroad concerned, polycarboxylate high performance water-reducing agent, due to really doing
It has arrived and has designed effective molecular structure according to the dispersion cement mechanism of action, there is ultra-dispersed type, can prevent concrete slump from damaging
It loses without causing apparent slow setting, higher plasticizing effect is played under low-dosage, mobility retentivity is good, cement adapts to wide molecule structure
Make that degree of freedom is big, synthetic technology is more, the leeway of high performance is very big, it is notable to concrete enhancing effect, concrete can be reduced
It shrinks, the technical performances feature such as harmful substance contents are extremely low imparts the outstanding construction workability of concrete, good intensity hair
Exhibition, excellent durability, polycarboxylate high performance water-reducing agent have the characteristics that good comprehensive technical performance advantage and environmental protection, meet
Modernize the needs of concrete works.Therefore, polycarboxylate high performance water-reducing agent, which is increasingly becoming, prepares high performance concrete
Preferred additive.It is reported that Japanese polycarboxylic admixture usage amount accounted for the 80% of all high performance additive product populations with
On, North America and Europe also account for 50% or more.In China, poly carboxylic acid series water reducer has been applied successfully only in Three Gorges Dam, Su Tong great
The large-scale water conservancy of the country such as bridge, field gulf nuclear power station, Beijing-Shanghai express railway, bridge, nuclear power, railway engineering, and achieve significant achievement.
But polycarboxylate water-reducer is deposited that slump retaining under high temperature environment is insufficient, temperature sensitivity is strong, viscosity is high etc. and is asked at present
Topic, seriously affects construction and construction quality.
Therefore, a kind of polycarboxylate water-reducer of applicant's proposition and its synthetic method, can solve the above problems.
Invention content
In view of the drawbacks described above of the prior art, technical problem to be solved by the invention is to provide a kind of polycarboxylic acids diminishings
Agent and its synthetic method.
To achieve the above object, the present invention provides a kind of polycarboxylate water-reducer synthetic method, include the following steps：
S1, raw material, acrylic acid, metering system sulphonic acid sodium, ammonium persulfate, thioacetic acid, hydrogen peroxide, methacrylic polyoxy second
Alkene ether, polyethylene propylene propyl ester polymeric monomer, deionized water, sodium hydroxide；
S2, metering system sulphonic acid sodium, ammonium persulfate, polyethylene propylene propyl ester polymeric monomer, sodium hydroxide are used into deionization respectively
Water is configured to a concentration of 20% solution；
By acrylic acid, thioacetic acid, hydrogen peroxide, methyl allyl polyoxyethylene ether（TPEG）With deionized water be each configured to
Lower concentration：Acrylic acid 44%-50%, thioacetic acid 0.5%-1%, dioxygen water-soluble liquid 2.5%-3%, methyl allyl polyoxyethylene ether
Lysate 135%-140%；
S3, by TPEG lysates, metering system sulphonic acid sodium lysate, ammonium persulfate lysate, the big list of polyethylene propylene propyl ester
Body lysate, thioacetic acid lysate are according to following volumes than being uniformly mixed：TPEG lysates 4-5, metering system sulphonic acid sodium
Lysate 1-2, ammonium persulfate lysate 1-2, polyethylene propylene propyl ester polymeric monomer lysate 2-4；Then it stirs evenly, and heats up
To 70-75 DEG C, then to above-mentioned mixed solution and dripping acrylic acid solution, hydrogen peroxide solution, the amount of dropwise addition and the body of mixed solution
Accumulating ratio is respectively：Acrylic acid solution 0.2-0.3, hydrogen peroxide solution 0.1-0.3, dropwise addition should be completed in 3-4 hours；
S4, the solution in such as S3 is added dropwise in mercaptoacetic acid solution, dripping quantity is the 0.05-0.1% of S3 total solution volumes, and dropwise addition is answered
It is completed in 3.5-4 hours；Then 70-75 DEG C is kept to react 3-5 hours；
S5, after reaction is added sodium hydroxide lysate and adjusts pH value, until pH value is in 7-8 or so, is then cooled to 40
DEG C, you can polycarboxylate water-reducer solution is obtained, the drying of polycarboxylate water-reducer solution, purification are just obtained into polycarboxylate water-reducer.
The invention also discloses the polycarboxylate water-reducers prepared using above-mentioned synthetic method.
The beneficial effects of the invention are as follows：The polycarboxylate water-reducer of the present invention and the prior art compares, slump retaining preferably,
Temperature sensitivity is weak, viscosity is relatively low, and it is good with the compatibility of various cement, volume is low, water-reducing rate is high, contraction is small.
Specific implementation mode
With reference to embodiment, the invention will be further described：
Embodiment one
A kind of synthetic method of polycarboxylate water-reducer, includes the following steps：
S1, raw material, acrylic acid, metering system sulphonic acid sodium, ammonium persulfate, thioacetic acid, hydrogen peroxide, methacrylic polyoxy second
Alkene ether, polyethylene propylene propyl ester polymeric monomer, deionized water, sodium hydroxide；
S2, metering system sulphonic acid sodium, ammonium persulfate, polyethylene propylene propyl ester polymeric monomer, sodium hydroxide are used into deionization respectively
Water is configured to a concentration of 20% solution；
By acrylic acid, thioacetic acid, hydrogen peroxide, methyl allyl polyoxyethylene ether（TPEG）With deionized water be each configured to
Lower concentration：Acrylic acid 45%, thioacetic acid 0.6%, dioxygen water-soluble liquid 2.6%, methyl allyl polyoxyethylene ether lysate
138%；
S3, by TPEG lysates, metering system sulphonic acid sodium lysate, ammonium persulfate lysate, the big list of polyethylene propylene propyl ester
Body lysate, thioacetic acid lysate are according to following volumes than being uniformly mixed：TPEG lysates 4.2, metering system sulphonic acid sodium
Lysate 1.1, ammonium persulfate lysate 1, polyethylene propylene propyl ester polymeric monomer lysate 4；Then it stirs evenly, and is warming up to 73
DEG C, then distinguish to above-mentioned mixed solution and dripping acrylic acid solution, hydrogen peroxide solution, the amount of dropwise addition and the volume ratio of mixed solution
For：Acrylic acid solution 0.22, hydrogen peroxide solution 0.15, dropwise addition should be completed in 3.5 hours；
S4, the solution in such as S3 is added dropwise in mercaptoacetic acid solution, dripping quantity is the 0.07% of S3 total solution volumes, and dropwise addition should be 3.8
It is completed in hour；Then 73 DEG C are kept to react 4 hours；
S5, after reaction is added sodium hydroxide lysate and adjusts pH value, until pH value is in 7-8 or so, is then cooled to 40
DEG C, you can polycarboxylate water-reducer solution is obtained, the drying of polycarboxylate water-reducer solution, purification are just obtained into polycarboxylate water-reducer.
Embodiment two
A kind of synthetic method of polycarboxylate water-reducer, includes the following steps：
S1, raw material, acrylic acid, metering system sulphonic acid sodium, ammonium persulfate, thioacetic acid, hydrogen peroxide, methacrylic polyoxy second
Alkene ether, polyethylene propylene propyl ester polymeric monomer, deionized water, sodium hydroxide；
S2, metering system sulphonic acid sodium, ammonium persulfate, polyethylene propylene propyl ester polymeric monomer, sodium hydroxide are used into deionization respectively
Water is configured to a concentration of 20% solution；
By acrylic acid, thioacetic acid, hydrogen peroxide, methyl allyl polyoxyethylene ether（TPEG）With deionized water be each configured to
Lower concentration：Acrylic acid 47%, thioacetic acid 0.7%, dioxygen water-soluble liquid 2.8%, methyl allyl polyoxyethylene ether lysate
135%；
S3, by TPEG lysates, metering system sulphonic acid sodium lysate, ammonium persulfate lysate, the big list of polyethylene propylene propyl ester
Body lysate, thioacetic acid lysate are according to following volumes than being uniformly mixed：TPEG lysates 4.5, metering system sulphonic acid sodium
Lysate 1.3, ammonium persulfate lysate 1.5, polyethylene propylene propyl ester polymeric monomer lysate 3；Then it stirs evenly, and is warming up to
75 DEG C, then to above-mentioned mixed solution and dripping acrylic acid solution, hydrogen peroxide solution, the amount of dropwise addition and the volume score of mixed solution
It is not：Acrylic acid solution 0.28, hydrogen peroxide solution 0.22, dropwise addition should be completed in 4 hours；
S4, the solution in such as S3 is added dropwise in mercaptoacetic acid solution, dripping quantity is the 0.1% of S3 total solution volumes, and dropwise addition should be 3.8
It is completed in hour；Then 75 DEG C are kept to react 5 hours；
S5, after reaction is added sodium hydroxide lysate and adjusts pH value, until pH value is in 7-8 or so, is then cooled to 40
DEG C, you can polycarboxylate water-reducer solution is obtained, the drying of polycarboxylate water-reducer solution, purification are just obtained into polycarboxylate water-reducer.
Embodiment three
A kind of synthetic method of polycarboxylate water-reducer, includes the following steps：
S1, raw material, acrylic acid, metering system sulphonic acid sodium, ammonium persulfate, thioacetic acid, hydrogen peroxide, methacrylic polyoxy second
Alkene ether, polyethylene propylene propyl ester polymeric monomer, deionized water, sodium hydroxide；
S2, metering system sulphonic acid sodium, ammonium persulfate, polyethylene propylene propyl ester polymeric monomer, sodium hydroxide are used into deionization respectively
Water is configured to a concentration of 20% solution；
By acrylic acid, thioacetic acid, hydrogen peroxide, methyl allyl polyoxyethylene ether（TPEG）With deionized water be each configured to
Lower concentration：Acrylic acid 50%, thioacetic acid 0.8%, dioxygen water-soluble liquid 3%, methyl allyl polyoxyethylene ether lysate 140%；
S3, by TPEG lysates, metering system sulphonic acid sodium lysate, ammonium persulfate lysate, the big list of polyethylene propylene propyl ester
Body lysate, thioacetic acid lysate are according to following volumes than being uniformly mixed：TPEG lysates 5, metering system sulphonic acid sodium are molten
Solve liquid 1.5, ammonium persulfate lysate 1.5, polyethylene propylene propyl ester polymeric monomer lysate 4；Then it stirs evenly, and is warming up to 70
DEG C, then distinguish to above-mentioned mixed solution and dripping acrylic acid solution, hydrogen peroxide solution, the amount of dropwise addition and the volume ratio of mixed solution
For：Acrylic acid solution 0.3, hydrogen peroxide solution 0.25, dropwise addition should be completed in 3 hours；
S4, the solution in such as S3 is added dropwise in mercaptoacetic acid solution, dripping quantity is the 0.1% of S3 total solution volumes, and dropwise addition should be small 4
When interior completion；Then 70 DEG C are kept to react 4 hours；
S5, after reaction is added sodium hydroxide lysate and adjusts pH value, until pH value is in 7-8 or so, is then cooled to 40
DEG C, you can polycarboxylate water-reducer solution is obtained, the drying of polycarboxylate water-reducer solution, purification are just obtained into polycarboxylate water-reducer.
Place is not described in detail by the present invention, is the known technology of those skilled in the art.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (5)
1. a kind of synthetic method of polycarboxylate water-reducer, which is characterized in that include the following steps：
S1, raw material, acrylic acid, metering system sulphonic acid sodium, ammonium persulfate, thioacetic acid, hydrogen peroxide, methacrylic polyoxy second
Alkene ether, polyethylene propylene propyl ester polymeric monomer, deionized water, sodium hydroxide；
S2, metering system sulphonic acid sodium, ammonium persulfate, polyethylene propylene propyl ester polymeric monomer, sodium hydroxide are used into deionization respectively
Water is configured to a concentration of 20% solution；
Acrylic acid, thioacetic acid, hydrogen peroxide, methyl allyl polyoxyethylene ether are each configured to deionized water following dense
Degree：Acrylic acid 44%-50%, thioacetic acid 0.5%-1%, dioxygen water-soluble liquid 2.5%-3%, methyl allyl polyoxyethylene ether dissolving
Liquid 135%-140%；
S3, by TPEG lysates, metering system sulphonic acid sodium lysate, ammonium persulfate lysate, the big list of polyethylene propylene propyl ester
Body lysate, thioacetic acid lysate are according to following volumes than being uniformly mixed：TPEG lysates 4-5, metering system sulphonic acid sodium
Lysate 1-2, ammonium persulfate lysate 1-2, polyethylene propylene propyl ester polymeric monomer lysate 2-4；Then it stirs evenly, and heats up
To 70-75 DEG C, then to above-mentioned mixed solution and dripping acrylic acid solution, hydrogen peroxide solution, the amount of dropwise addition and the body of mixed solution
Accumulating ratio is respectively：Acrylic acid solution 0.2-0.3, hydrogen peroxide solution 0.1-0.3, dropwise addition should be completed in 3-4 hours；
S4, the solution in such as S3 is added dropwise in mercaptoacetic acid solution, dripping quantity is the 0.05-0.1% of S3 total solution volumes, and dropwise addition is answered
It is completed in 3.5-4 hours；Then 70-75 DEG C is kept to react 3-5 hours；
S5, after reaction is added sodium hydroxide lysate and adjusts pH value, until pH value is in 7-8, is then cooled to 40 DEG C, i.e.,
Polycarboxylate water-reducer solution is can get, the drying of polycarboxylate water-reducer solution, purification are just obtained into polycarboxylate water-reducer.
2. synthetic method as described in claim 1, which is characterized in that include the following steps：
S1, raw material, acrylic acid, metering system sulphonic acid sodium, ammonium persulfate, thioacetic acid, hydrogen peroxide, methacrylic polyoxy second
Alkene ether, polyethylene propylene propyl ester polymeric monomer, deionized water, sodium hydroxide；
S2, metering system sulphonic acid sodium, ammonium persulfate, polyethylene propylene propyl ester polymeric monomer, sodium hydroxide are used into deionization respectively
Water is configured to a concentration of 20% solution；
Acrylic acid, thioacetic acid, hydrogen peroxide, methyl allyl polyoxyethylene ether are each configured to deionized water following dense
Degree：Acrylic acid 45%, thioacetic acid 0.6%, dioxygen water-soluble liquid 2.6%, methyl allyl polyoxyethylene ether lysate 138%；
S3, by TPEG lysates, metering system sulphonic acid sodium lysate, ammonium persulfate lysate, the big list of polyethylene propylene propyl ester
Body lysate, thioacetic acid lysate are according to following volumes than being uniformly mixed：TPEG lysates 4.2, metering system sulphonic acid sodium
Lysate 1.1, ammonium persulfate lysate 1, polyethylene propylene propyl ester polymeric monomer lysate 4；Then it stirs evenly, and is warming up to 73
DEG C, then distinguish to above-mentioned mixed solution and dripping acrylic acid solution, hydrogen peroxide solution, the amount of dropwise addition and the volume ratio of mixed solution
For：Acrylic acid solution 0.22, hydrogen peroxide solution 0.15, dropwise addition should be completed in 3.5 hours；
S4, the solution in such as S3 is added dropwise in mercaptoacetic acid solution, dripping quantity is the 0.07% of S3 total solution volumes, and dropwise addition should be 3.8
It is completed in hour；Then 73 DEG C are kept to react 4 hours；
S5, after reaction is added sodium hydroxide lysate and adjusts pH value, until pH value is in 7-8, is then cooled to 40 DEG C, i.e.,
Polycarboxylate water-reducer solution is can get, the drying of polycarboxylate water-reducer solution, purification are just obtained into polycarboxylate water-reducer.
3. synthetic method as described in claim 1, which is characterized in that include the following steps：
S1, raw material, acrylic acid, metering system sulphonic acid sodium, ammonium persulfate, thioacetic acid, hydrogen peroxide, methacrylic polyoxy second
Alkene ether, polyethylene propylene propyl ester polymeric monomer, deionized water, sodium hydroxide；
S2, metering system sulphonic acid sodium, ammonium persulfate, polyethylene propylene propyl ester polymeric monomer, sodium hydroxide are used into deionization respectively
Water is configured to a concentration of 20% solution；
Acrylic acid, thioacetic acid, hydrogen peroxide, methyl allyl polyoxyethylene ether are each configured to deionized water following dense
Degree：Acrylic acid 47%, thioacetic acid 0.7%, dioxygen water-soluble liquid 2.8%, methyl allyl polyoxyethylene ether lysate 135%；
S3, by TPEG lysates, metering system sulphonic acid sodium lysate, ammonium persulfate lysate, the big list of polyethylene propylene propyl ester
Body lysate, thioacetic acid lysate are according to following volumes than being uniformly mixed：TPEG lysates 4.5, metering system sulphonic acid sodium
Lysate 1.3, ammonium persulfate lysate 1.5, polyethylene propylene propyl ester polymeric monomer lysate 3；Then it stirs evenly, and is warming up to
75 DEG C, then to above-mentioned mixed solution and dripping acrylic acid solution, hydrogen peroxide solution, the amount of dropwise addition and the volume score of mixed solution
It is not：Acrylic acid solution 0.28, hydrogen peroxide solution 0.22, dropwise addition should be completed in 4 hours；
S4, the solution in such as S3 is added dropwise in mercaptoacetic acid solution, dripping quantity is the 0.1% of S3 total solution volumes, and dropwise addition should be 3.8
It is completed in hour；Then 75 DEG C are kept to react 5 hours；
S5, after reaction is added sodium hydroxide lysate and adjusts pH value, until pH value is in 7-8, is then cooled to 40 DEG C, i.e.,
Polycarboxylate water-reducer solution is can get, the drying of polycarboxylate water-reducer solution, purification are just obtained into polycarboxylate water-reducer.
4. synthetic method as described in claim 1, which is characterized in that include the following steps：
S1, raw material, acrylic acid, metering system sulphonic acid sodium, ammonium persulfate, thioacetic acid, hydrogen peroxide, methacrylic polyoxy second
Alkene ether, polyethylene propylene propyl ester polymeric monomer, deionized water, sodium hydroxide；
S2, metering system sulphonic acid sodium, ammonium persulfate, polyethylene propylene propyl ester polymeric monomer, sodium hydroxide are used into deionization respectively
Water is configured to a concentration of 20% solution；
Acrylic acid, thioacetic acid, hydrogen peroxide, methyl allyl polyoxyethylene ether are each configured to deionized water following dense
Degree：Acrylic acid 50%, thioacetic acid 0.8%, dioxygen water-soluble liquid 3%, methyl allyl polyoxyethylene ether lysate 140%；
S3, by TPEG lysates, metering system sulphonic acid sodium lysate, ammonium persulfate lysate, the big list of polyethylene propylene propyl ester
Body lysate, thioacetic acid lysate are according to following volumes than being uniformly mixed：TPEG lysates 5, metering system sulphonic acid sodium are molten
Solve liquid 1.5, ammonium persulfate lysate 1.5, polyethylene propylene propyl ester polymeric monomer lysate 4；Then it stirs evenly, and is warming up to 70
DEG C, then distinguish to above-mentioned mixed solution and dripping acrylic acid solution, hydrogen peroxide solution, the amount of dropwise addition and the volume ratio of mixed solution
For：Acrylic acid solution 0.3, hydrogen peroxide solution 0.25, dropwise addition should be completed in 3 hours；
S4, the solution in such as S3 is added dropwise in mercaptoacetic acid solution, dripping quantity is the 0.1% of S3 total solution volumes, and dropwise addition should be small 4
When interior completion；Then 70 DEG C are kept to react 4 hours；
S5, after reaction is added sodium hydroxide lysate and adjusts pH value, until pH value is in 7-8, is then cooled to 40 DEG C, i.e.,
Polycarboxylate water-reducer solution is can get, the drying of polycarboxylate water-reducer solution, purification are just obtained into polycarboxylate water-reducer.
5. a kind of polycarboxylate water-reducer, which is characterized in that be made of any synthetic methods of claim 1-4.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110357785A (en) * | 2019-07-26 | 2019-10-22 | 阳姓桦 | A kind of preparation method of cyanate ester resin plasticizer |
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| CN102503216A (en) * | 2011-10-27 | 2012-06-20 | 北京东方雨虹防水技术股份有限公司 | Method for synthesizing universal polycarboxylic water reducer |
| CN102718426A (en) * | 2012-06-21 | 2012-10-10 | 马清浩 | Modified carboxylic acid water-reducing agent and preparation method thereof |
| CN105367719A (en) * | 2015-10-29 | 2016-03-02 | 中国建筑材料科学研究总院 | High-performance polycarboxylic acid water-reducing agent and preparation method thereof |
| CN105837762A (en) * | 2016-05-30 | 2016-08-10 | 江苏名和集团有限公司 | Polycarboxylate superplasticizer synthesized at normal temperature and preparation method thereof |
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2018
- 2018-06-15 CN CN201810616515.2A patent/CN108659179A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503216A (en) * | 2011-10-27 | 2012-06-20 | 北京东方雨虹防水技术股份有限公司 | Method for synthesizing universal polycarboxylic water reducer |
| CN102718426A (en) * | 2012-06-21 | 2012-10-10 | 马清浩 | Modified carboxylic acid water-reducing agent and preparation method thereof |
| CN105367719A (en) * | 2015-10-29 | 2016-03-02 | 中国建筑材料科学研究总院 | High-performance polycarboxylic acid water-reducing agent and preparation method thereof |
| CN105837762A (en) * | 2016-05-30 | 2016-08-10 | 江苏名和集团有限公司 | Polycarboxylate superplasticizer synthesized at normal temperature and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110357785A (en) * | 2019-07-26 | 2019-10-22 | 阳姓桦 | A kind of preparation method of cyanate ester resin plasticizer |
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