CN108129611A - A kind of organic-silicon-modified polycarboxylate water-reducer and preparation method thereof - Google Patents
A kind of organic-silicon-modified polycarboxylate water-reducer and preparation method thereof Download PDFInfo
- Publication number
- CN108129611A CN108129611A CN201711427293.1A CN201711427293A CN108129611A CN 108129611 A CN108129611 A CN 108129611A CN 201711427293 A CN201711427293 A CN 201711427293A CN 108129611 A CN108129611 A CN 108129611A
- Authority
- CN
- China
- Prior art keywords
- water
- reducing agent
- small molecule
- carboxylic acid
- unsaturated carboxylic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C04B24/2605—Macromolecular compounds 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 organic-silicon-modified polycarboxylate water-reducers and preparation method thereof.The synthesis material component of organic-silicon-modified polycarboxylate water-reducer is as follows：Unsaturated polyether class polymeric monomer；Small molecule unsaturated carboxylic acid；Distilled water；Vinyl silicane coupling agent；Oxidant；Reduction catalysts；Chain-transferring agent, neutralizer.This has the more traditional polycarboxylate water-reducer of water-reducing agent to compare, and has better fluidity, low to silt susceptibility, and it is more than 290mm that can make reference cement paste flowing degree in the ratio of mud 0.35, water-reducing agent folding volume 0.8% admittedly, has preferable mobility；While keeping cement sample compression strength basicly stable, using the water-reducing agent of the present invention, when the solid volume of folding is 0.8%, for water-reducing rate up to more than 40%, water-reducing effect is excellent.
Description
Technical field
The invention belongs to cement additire fields, and in particular to a kind of organic-silicon-modified polycarboxylate water-reducer and its preparation
Method.
Background technology
Water-reducing agent is a kind of typical additives in cement works application.Water can be effectively reduced by the use of water-reducing agent
The dosage of mixing water when mud is constructed so as to reduce the porosity after cement solidification, has the function that improve cement components intensity.Subtract
Development of the aqua Jing Guo lignin type, naphthalene system, currently on the market based on poly carboxylic acid series water reducer product.Poly carboxylic acid series water reducer
Typical structure is the Grafting Structure of pectination, and the carboxylic acid group on main chain is interacted by the interionic after ionization so as to make to subtract
Aqua can be anchored at cement particle surface；Polyethers side long-chain then improves the dispersion of cement particle by steric hindrance repulsion
Property.Poly carboxylic acid series water reducer water-reducing rate is high, and shrinking percentage is low, environmentally protective, while its molecule designability is high, thus becomes existing
In the Main way of water-reducing agent area research, high performance poly carboxylic acid series water reducer product emerges in an endless stream.It is traditional but then
Polycarboxylic acid water reducing agent there is also performance it is single, easily by influence to sediment, to problems such as construction environment temperature sensitivities.Pass through
It introduces silicone units and the adsorption rate that can improve water-reducing agent on cement particle surface is modified to polycarboxylate water-reducer, simultaneously
Organosilicon hydrolyzation generation hydroxyl group easily forms hydrogen bond so as to strengthen and the combination of water, good so as to ensure to have in cement construction
Mobility, while the dosage of water-reducing agent can be reduced again.A kind of organosilicon is disclosed in patent CN105131202A and carbohydrate is total to
Modified polycarboxylic acid water-reducing agent and preparation method thereof, the invention is using methoxy polyoxyethylene, organosilicon and carbohydrate to (methyl) third
Olefin(e) acid ester is modified, then is carried out copolyreaction and prepared modified polycarboxylic acid water-reducing agent, and raw material environmental protection is renewable, product water-reducing rate compared with
It is good, but fluidity is general.A kind of polycarboxylic acids composite strengthening water-reducing agent and preparation method thereof is disclosed in patent CN106007467A,
The invention is by polycarboxylate water-reducer and organic silicon emulsion, acrylic resin, triethanolamine, polyurethane rheological agent, sodium gluconate
It is blended to obtain composite strengthening water-reducing agent with anion surfactant, product has strength of cement preferable influence, but does not have
There is the influence referred to fluidity.
Invention content
To solve the disadvantage that the prior art and shortcoming, primary and foremost purpose of the invention is to provide a kind of organic-silicon-modified
Polycarboxylate water-reducer.
Another object of the present invention is to provide the preparation method of above-mentioned organic-silicon-modified polycarboxylate water-reducer.
For achieving the above object, the present invention adopts the following technical scheme that：A kind of organic-silicon-modified polycarboxylic acids diminishing
Agent is prepared by following components：
Unsaturated polyether class polymeric monomer has the molecular weight of 500~2000g/mol；
Small molecule unsaturated carboxylic acid, the small molecule unsaturated carboxylic acid are 3~6 with unsaturated polyether polymeric monomer molar ratio:
1；
Vinyl silicane coupling agent, the vinyl silicane coupling agent are 0.01 with unsaturated polyether class polymeric monomer molar ratio
~0.05:1；
Distilled water, the quality of the distilled water is unsaturated polyether class polymeric monomer and small molecule unsaturated carboxylic acid gross mass
1.4~1.7 times；
Oxidant, the oxidant addition are unsaturated polyether class polymeric monomer and small molecule unsaturated carboxylic acid mole total amount
0.1%~0.2%；
Reducing agent, the reducing agent addition amount are unsaturated polyether class polymeric monomer and small molecule unsaturated carboxylic acid mole total amount
0.05%~0.15%；
Chain-transferring agent, addition are unsaturated polyether class polymeric monomer and small molecule unsaturated carboxylic acid mole total amount
0.08%~0.1%,
A kind of neutralizer, the neutralizer are 0.8~1 with small molecule unsaturated carboxylic acid molar ratio:1.
Preferably, the unsaturated polyether class polymeric monomer is allyl polyethenoxy ether (HPEG), prenol polyoxy
One or more of vinethene (TPEG), methyl allyl alcohol polyoxyethylene ether (APEG).
Preferably, the small molecule unsaturated carboxylic acid for acrylic acid (AA), one kind in α-methacrylic acid (MAA) or
It is two or more.
Preferably, the vinyl silicane coupling agent is vinyltrimethoxysilane, vinyltriethoxysilane, second
One or more of three tert-butoxy silane of alkenyl, vinyltriacetoxy silane.
Preferably, the oxidant is hydrogen peroxide, and reducing agent is vitamin C.
Preferably, the chain-transferring agent is thioacetic acid.
Preferably, the neutralizer is the one of which or two or more in sodium hydroxide, potassium hydroxide and ammonium hydroxide.
The preparation method of the water-reducing agent, comprises the steps of：
(1) by unsaturated polyether polymeric monomer, vinyl silicane coupling agent, distilled water, oxidant adds in reaction vessel, 65
DEG C~80 DEG C at heating stirring；
(2) mixing of reducing agent and chain-transferring agent is added dropwise simultaneously to step (1) reaction system under conditions of heating stirring
Solution and small molecule unsaturated carboxylic acid, the time that mixed liquor is added dropwise are 150~210 minutes, and small molecule unsaturated carboxylic acid is added dropwise
Time for adding is 150~210 minutes；
(3) after all solution are added dropwise in step (2), 30~60 minutes are kept the temperature at 70 DEG C~80 DEG C；
(4) water and neutralizer are added in after product is cooled to less than 50 DEG C, it is 7 to make final ph, obtains the water-reducing agent.
Preferably, heating temperature described in step (1) is 75 DEG C；
Preferably, reducing agent described in step (2) and chain-transferring agent mixed solution time for adding are 160 minutes；It is described small
Molecule unsaturated carboxylic acid time for adding is 180 minutes.
Preferably, holding temperature described in step (3) is 75 DEG C；Soaking time is 45 minutes.
The present invention is had the following advantages and effect relative to the prior art：
(1) the more traditional polycarboxylate water-reducer of the present invention is compared, and has better fluidity, low to silt susceptibility.
(2) while keeping cement sample compression strength basicly stable, using the water-reducing agent of the present invention, it is in the solid amount of folding
When 0.8%, for water-reducing rate up to more than 40%, water-reducing effect is excellent.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but the implementation of the present invention is not limited to this.
Embodiment 1
(1) by 50g allyl polyethenoxy ethers, 0.64g vinyltrimethoxysilanes, 0.1587g hydrogen peroxide (quality point
Number 30%), 150g distilled water add in four-hole boiling flask in, at 65 DEG C heating and magnetic agitation；
(2) under conditions of heating stirring, 0.176g vitamin Cs and 0.0644g are added dropwise simultaneously to step (1) reaction system
The mixed solution of thioacetic acid and 43.2g acrylic acid, time for adding are respectively 150 minutes, 180 minutes；
(3) 45 minutes are kept the temperature at 70 DEG C after all solution in step (2) are added dropwise；
(4) soda lye is added dropwise after product is cooled to less than 50 DEG C, adjusts pH to 7 and obtains final product.
Embodiment 2
(1) by 200g isoamyl alcohol polyoxyethylene ethers, three tert-butoxy silane of 0.0384g vinyl, 0.0453g hydrogen peroxide
(mass fraction 30%), 338g distilled water are added in four-hole boiling flask, heating and magnetic agitation at 80 DEG C；
(2) under conditions of heating stirring, to step (1) reaction system be added dropwise simultaneously 0.0352g vitamin Cs and
The mixed solution of 0.0294g thioacetic acid and 25.8g methacrylic acids, time for adding are respectively 210 minutes, 150 minutes；
(3) 60 minutes are kept the temperature at 75 DEG C after step (2) all solution are added dropwise；
(4) potassium hydroxide concentrated solution is added dropwise after product is cooled to less than 50 DEG C, adjusts pH to 7 and obtains final product.
Embodiment 3
(1) by 100g methyl allyl alcohol polyoxyethylene ethers, 0.57g vinyltriethoxysilane, 0.136g hydrogen peroxide (matter
Measure score 30%), 215g distilled water add in four-hole boiling flask in, at 75 DEG C heating and magnetic agitation；
(2) under conditions of heating stirring, to step (1) reaction system be added dropwise simultaneously 0.1584g vitamin Cs and
The mixed solution of 0.0552g thioacetic acid and 43g methacrylic acids, time for adding are respectively 180 minutes, 180 minutes；
(3) 60 minutes are kept the temperature at 75 DEG C after all solution in step (2) are added dropwise；
(4) soda lye is added dropwise after product is cooled to less than 50 DEG C, adjusts pH to 7 and obtains final product.
Embodiment 4
(1) by 100g isoamyl alcohol polyoxyethylene ethers, 0.464g vinyltriacetoxy silanes, 0.0793g hydrogen peroxide
(mass fraction 30%), 215g distilled water are added in four-hole boiling flask, heating and magnetic agitation at 80 DEG C；
(2) under conditions of heating stirring, to step (1) reaction system be added dropwise simultaneously 0.1584g vitamin Cs and
The mixed solution of 0.0644g thioacetic acid and 43.2g acrylic acid, time for adding are respectively 150 minutes, 210 minutes；
(3) 60 minutes are kept the temperature at 70 DEG C after all solution in step (2) are added dropwise；
(4) ammonium hydroxide is added dropwise after product is cooled to less than 50 DEG C, adjusts pH to 7 and obtains final product.
Embodiment 5
(1) by 50g methyl allyl alcohol polyoxyethylene ethers, 0.592g vinyltrimethoxysilanes, 0.136g hydrogen peroxide (matter
Measure score 30%), 140g distilled water add in four-hole boiling flask in, at 75 DEG C heating and magnetic agitation；
(2) under conditions of heating stirring, to step (1) reaction system be added dropwise simultaneously 0.1408g vitamin Cs and
The mixed solution of 0.0552g thioacetic acid and 43g methacrylic acids, time for adding are respectively 160 minutes, 180 minutes；
(3) 45 minutes are kept the temperature at 75 DEG C after all solution in step (2) are added dropwise；
(4) soda lye is added dropwise after product is cooled to less than 50 DEG C, adjusts pH to 7 and obtains final product.
Embodiment 6
(1) by 200g methyl allyl alcohol polyoxyethylene ethers, 0.696g vinyltriacetoxy silanes, 0.1133g dioxygens
Water (mass fraction 30%), 343g distilled water are added in four-hole boiling flask, heating and magnetic agitation at 80 DEG C；
(2) under conditions of heating stirring, 0.088g vitamin Cs and 0.0368g are added dropwise simultaneously to step (1) reaction system
The mixed solution of thioacetic acid and 28.8g acrylic acid, time for adding are respectively 160 minutes, 200 minutes；
(3) 30 minutes are kept the temperature at 80 DEG C after all solution in step (2) are added dropwise；
(4) potassium hydroxide concentrated solution is added dropwise after product is cooled to less than 50 DEG C, adjusts pH to 7 and obtains final product.
Organic-silicon-modified poly carboxylic acid series water reducer prepared by the embodiment of the present invention 1~6 is applied to prepare cement slurry,
Comparative example is commercially available common polycarboxylate water-reducer, and contrast test is carried out to influence of the water-reducing agent volume to flowing degree of net paste of cement,
Test method is according to GB/T 8077-2012《Methods for testing uniformity of concrete admixture》, cement sample intensity test side
Method is according to GB/T 17671-1999《Test method for strength of hydraulic cement mortar》.Test result is as shown in table 1.
1 embodiment of table and reference examples test result
Note：Test is that concrete admixture examines dedicated fiducial cement, 42.5 portland cements of model PI with cement
(rotary kiln), the ratio of mud 0.35, cement solidification sample curing time are 28 days.
Cement paste slurry fluidity higher using the present invention under equal volume can be seen that by comparison, to reach
Diminishing dosage to be added is also less needed for particular flow degree；In addition, keeping basicly stable same of cement sample compression strength
When, using the water-reducing agent of the present invention, when the solid amount of folding is 0.8%, for water-reducing rate up to more than 40%, water-reducing effect is excellent.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of organic-silicon-modified polycarboxylate water-reducer, which is characterized in that the synthesis material component of the water-reducing agent is as follows：
Unsaturated polyether class polymeric monomer has the molecular weight of 500~2000g/mol；
Small molecule unsaturated carboxylic acid, the small molecule unsaturated carboxylic acid are 3~6 with unsaturated polyether polymeric monomer molar ratio:1；
Vinyl silicane coupling agent, the vinyl silicane coupling agent and unsaturated polyether class polymeric monomer molar ratio for 0.01~
0.05:1；
Distilled water, the quality of the distilled water are the 1.4 of unsaturated polyether class polymeric monomer and small molecule unsaturated carboxylic acid gross mass
~1.7 times；
Oxidant, the oxidant addition are unsaturated polyether class polymeric monomer and small molecule unsaturated carboxylic acid mole total amount
0.1%~0.2%；
Reducing agent, the reducing agent addition amount are unsaturated polyether class polymeric monomer and small molecule unsaturated carboxylic acid mole total amount
0.05%~0.15%；
Chain-transferring agent, addition for unsaturated polyether class polymeric monomer and small molecule unsaturated carboxylic acid mole total amount 0.08%~
0.1%；
Neutralizer, the neutralizer are 0.8~1 with small molecule unsaturated carboxylic acid molar ratio:1.
2. water-reducing agent according to claim 1, it is characterised in that：The unsaturated polyether class polymeric monomer gathers for pi-allyl
Ethylene oxide ether (HPEG), isoamyl alcohol polyoxyethylene ether (TPEG), one kind in methyl allyl alcohol polyoxyethylene ether (APEG) or
It is two or more.
3. water-reducing agent according to claim 2, it is characterised in that：The small molecule unsaturated carboxylic acid is acrylic acid
(AA), one or more of α-methacrylic acid (MAA).
4. water-reducing agent according to claim 3, it is characterised in that：The vinyl silicane coupling agent is vinyl trimethoxy
Base silane, vinyltriethoxysilane, three tert-butoxy silane of vinyl, one kind in vinyltriacetoxy silane or
It is two or more.
5. water-reducing agent according to claim 4, it is characterised in that：The oxidant is hydrogen peroxide, and reducing agent is vitamin
C。
6. according to the water-reducing agent described in claims 1 or 2 or 3 or 4 or 5, it is characterised in that：The chain-transferring agent is sulfydryl second
Acid.
7. water-reducing agent according to claim 6, it is characterised in that：The neutralizer is sodium hydroxide, potassium hydroxide and ammonia
One of which or two or more in water.
8. the preparation method of the water-reducing agent described in claim 1~7 any one, it is characterised in that comprise the steps of：
(1) by unsaturated polyether polymeric monomer, vinyl silicane coupling agent, distilled water, oxidant adds in reaction vessel, 65 DEG C~
Heating stirring at 80 DEG C；
(2) mixed solution of reducing agent and chain-transferring agent is added dropwise simultaneously to step (1) reaction system under conditions of heating stirring
And small molecule unsaturated carboxylic acid, the time that mixed liquor is added dropwise are 150~210 minutes, and small molecule unsaturated carboxylic acid is added dropwise and is added dropwise
Time is 150~210 minutes；
(3) after all solution are added dropwise in step (2), 30~60 minutes are kept the temperature at 70 DEG C~80 DEG C；
(4) water and neutralizer are added in after product is cooled to less than 50 DEG C, it is 7 to make final ph, obtains the water-reducing agent.
9. preparation method according to claim 8, it is characterised in that：
Heating temperature described in step (1) is 75 DEG C；
Reducing agent described in step (2) and chain-transferring agent mixed solution time for adding are 160 minutes；The small molecule unsaturation carboxylic
Sour time for adding is 180 minutes.
10. preparation method according to claim 8 or claim 9, it is characterised in that：
Holding temperature described in step (3) is 75 DEG C；Soaking time is 45 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711427293.1A CN108129611A (en) | 2017-12-26 | 2017-12-26 | A kind of organic-silicon-modified polycarboxylate water-reducer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711427293.1A CN108129611A (en) | 2017-12-26 | 2017-12-26 | A kind of organic-silicon-modified polycarboxylate water-reducer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108129611A true CN108129611A (en) | 2018-06-08 |
Family
ID=62392952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711427293.1A Pending CN108129611A (en) | 2017-12-26 | 2017-12-26 | A kind of organic-silicon-modified polycarboxylate water-reducer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108129611A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180874A (en) * | 2018-07-13 | 2019-01-11 | 成都宏基建材股份有限公司 | A kind of polycarboxylate water-reducer and preparation method thereof |
| CN109384415A (en) * | 2018-09-18 | 2019-02-26 | 科之杰新材料集团有限公司 | A kind of preparation method of concrete anticracking type reinforcing agent |
| CN110003400A (en) * | 2019-04-03 | 2019-07-12 | 山西众诺和建材有限公司 | A kind of silane coupler modified polycarboxylate water-reducer and preparation method thereof |
| CN110330600A (en) * | 2019-05-29 | 2019-10-15 | 科之杰新材料集团有限公司 | A kind of low responsive type wet mixing mortar plasticizer and preparation method thereof |
| CN111286021A (en) * | 2020-03-31 | 2020-06-16 | 安徽海螺新材料科技有限公司 | Polyether terminated by silyl ether, preparation method thereof and efficient anti-mud water reducer |
| CN111943604A (en) * | 2020-08-25 | 2020-11-17 | 中交路桥建设有限公司 | Prestressed duct grouting material |
| CN112390923A (en) * | 2020-11-19 | 2021-02-23 | 武汉善达化工有限公司 | Anti-bulging water reducing agent for high-purity castable and preparation and powder making process thereof |
| CN112708140A (en) * | 2020-11-30 | 2021-04-27 | 科之杰新材料集团福建有限公司 | Early-strength cement dispersion polymer and preparation method thereof |
| CN114380955A (en) * | 2021-12-31 | 2022-04-22 | 苏州弗克技术股份有限公司 | Silicon modified polycarboxylic acid reinforcing agent for refractory material and preparation method thereof |
| CN114426408A (en) * | 2020-10-13 | 2022-05-03 | 中国石油化工股份有限公司 | Oil well cement dispersant, preparation method and application thereof |
| CN115073702A (en) * | 2021-10-08 | 2022-09-20 | 长沙理工大学 | Organic silicon modified polyurethane side chain macromonomer and synthesis method thereof |
| CN116515047A (en) * | 2023-05-30 | 2023-08-01 | 广州砼奇杰建材科技有限公司 | Cement waste slurry dispersing agent, preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110163254A1 (en) * | 2005-09-08 | 2011-07-07 | Wacker Chemie Ag | Hydrophilic Organofunctional Silicone Copolymers |
| CN102951866A (en) * | 2012-06-21 | 2013-03-06 | 马清浩 | Ascorbic acid modified carboxylic water reducer and preparation method thereof |
| CN103803846A (en) * | 2014-01-22 | 2014-05-21 | 北京奥润开元环保科技研究院有限公司 | Mud-resistant and salt-resistant polycarboxylate superplasticizer and preparation method thereof |
| CN105271885A (en) * | 2015-09-24 | 2016-01-27 | 四川恒泽建材有限公司 | Mud resistance and slump loss resistance type high-performance polycarboxylic acid water reducer and preparation method thereof |
-
2017
- 2017-12-26 CN CN201711427293.1A patent/CN108129611A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110163254A1 (en) * | 2005-09-08 | 2011-07-07 | Wacker Chemie Ag | Hydrophilic Organofunctional Silicone Copolymers |
| CN102951866A (en) * | 2012-06-21 | 2013-03-06 | 马清浩 | Ascorbic acid modified carboxylic water reducer and preparation method thereof |
| CN103803846A (en) * | 2014-01-22 | 2014-05-21 | 北京奥润开元环保科技研究院有限公司 | Mud-resistant and salt-resistant polycarboxylate superplasticizer and preparation method thereof |
| CN105271885A (en) * | 2015-09-24 | 2016-01-27 | 四川恒泽建材有限公司 | Mud resistance and slump loss resistance type high-performance polycarboxylic acid water reducer and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 阮承祥: "《混凝土外加剂及其工程应用》", 31 December 2008, 江西科学技术出版社 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180874A (en) * | 2018-07-13 | 2019-01-11 | 成都宏基建材股份有限公司 | A kind of polycarboxylate water-reducer and preparation method thereof |
| CN109384415A (en) * | 2018-09-18 | 2019-02-26 | 科之杰新材料集团有限公司 | A kind of preparation method of concrete anticracking type reinforcing agent |
| CN109384415B (en) * | 2018-09-18 | 2021-03-02 | 科之杰新材料集团有限公司 | Preparation method of concrete anti-cracking reinforcing agent |
| CN110003400A (en) * | 2019-04-03 | 2019-07-12 | 山西众诺和建材有限公司 | A kind of silane coupler modified polycarboxylate water-reducer and preparation method thereof |
| CN110330600B (en) * | 2019-05-29 | 2022-04-22 | 科之杰新材料集团有限公司 | Low-sensitivity wet-mixed mortar plasticizer and preparation method thereof |
| CN110330600A (en) * | 2019-05-29 | 2019-10-15 | 科之杰新材料集团有限公司 | A kind of low responsive type wet mixing mortar plasticizer and preparation method thereof |
| CN111286021A (en) * | 2020-03-31 | 2020-06-16 | 安徽海螺新材料科技有限公司 | Polyether terminated by silyl ether, preparation method thereof and efficient anti-mud water reducer |
| CN111286021B (en) * | 2020-03-31 | 2023-03-10 | 安徽海螺材料科技股份有限公司 | Polyether terminated by silyl ether, preparation method thereof and efficient anti-mud water reducer |
| CN111943604A (en) * | 2020-08-25 | 2020-11-17 | 中交路桥建设有限公司 | Prestressed duct grouting material |
| CN114426408A (en) * | 2020-10-13 | 2022-05-03 | 中国石油化工股份有限公司 | Oil well cement dispersant, preparation method and application thereof |
| CN112390923A (en) * | 2020-11-19 | 2021-02-23 | 武汉善达化工有限公司 | Anti-bulging water reducing agent for high-purity castable and preparation and powder making process thereof |
| CN112708140B (en) * | 2020-11-30 | 2022-04-22 | 科之杰新材料集团福建有限公司 | Early-strength cement dispersion polymer and preparation method thereof |
| CN112708140A (en) * | 2020-11-30 | 2021-04-27 | 科之杰新材料集团福建有限公司 | Early-strength cement dispersion polymer and preparation method thereof |
| CN115073702A (en) * | 2021-10-08 | 2022-09-20 | 长沙理工大学 | Organic silicon modified polyurethane side chain macromonomer and synthesis method thereof |
| CN114380955A (en) * | 2021-12-31 | 2022-04-22 | 苏州弗克技术股份有限公司 | Silicon modified polycarboxylic acid reinforcing agent for refractory material and preparation method thereof |
| CN114380955B (en) * | 2021-12-31 | 2023-08-22 | 苏州弗克技术股份有限公司 | Siliceous modified polycarboxylic acid reinforcing agent for refractory material and preparation method thereof |
| CN116515047A (en) * | 2023-05-30 | 2023-08-01 | 广州砼奇杰建材科技有限公司 | Cement waste slurry dispersing agent, preparation method and application thereof |
| CN116515047B (en) * | 2023-05-30 | 2024-03-12 | 广州砼奇杰建材科技有限公司 | Cement waste slurry dispersing agent, preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108129611A (en) | A kind of organic-silicon-modified polycarboxylate water-reducer and preparation method thereof | |
| CN103613306B (en) | A kind of poly carboxylic acid series water reducer containing hyperbranched polyamine-ester structure and preparation method thereof | |
| CN104177562B (en) | Slow-release high-adaptability polyester polycarboxylic acid water-reducing agent and preparation method and application thereof | |
| CN104261721A (en) | Ether polycarboxylic acid slump retaining agent and preparation method thereof | |
| CN104876468B (en) | A kind of functional poly carboxylic acid water reducer for coordinating silicon ash to use and preparation method thereof | |
| CN104725573B (en) | It is a kind of to promote super plasticizer of hydrated cementitious and preparation method and application | |
| CN107163201B (en) | The method that silane coupler modified polyethers prepares collapse protective poly-carboxylic acid water reducing agent | |
| CN103554384B (en) | A kind of polycarboxylate water-reducer containing phosphino-and preparation method thereof | |
| CN106220791A (en) | The polycarboxylate water-reducer of a kind of phosphorous acidic group and preparation method | |
| CN105503012B (en) | It is a kind of to be used to produce the composition for being sustained anti-mud poly carboxylic acid series water reducer | |
| CN103951304A (en) | Concrete reinforcing agent as well as preparation method and application thereof | |
| CN104371081B (en) | A kind of preparation method of rapid dispersion viscosity reduction type poly-carboxylic-acid cement dispersant | |
| CN104193215B (en) | Ternary block macromonomer graft copolymerization high-property polycarboxylic acid water-reducing agent and preparation method thereof | |
| CN102503221B (en) | Cyclohexanol grafted polycarboxylic acid water reducing agent and preparation method thereof | |
| CN109320714A (en) | A kind of dedicated small molecule super plasticizer of middle low-slump concrete and preparation method thereof | |
| CN105601838B (en) | A kind of water-reducing agent prepared by beta-unsaturated esters and cationic unsaturated monomer and preparation method thereof | |
| CN104892856B (en) | A kind of preparation method of polycarboxylate water-reducer | |
| CN104961868A (en) | Water reducing agent capable of improving rheological characteristic of cement paste | |
| CN113773457B (en) | Low-creep high-efficiency polycarboxylate superplasticizer and preparation method thereof | |
| CN109384415A (en) | A kind of preparation method of concrete anticracking type reinforcing agent | |
| CN113278144B (en) | Viscosity-reducing polycarboxylic acid water reducer and preparation method thereof | |
| CN108191289A (en) | A kind of carbon black modified polycarboxylate water-reducer and its preparation method and application | |
| CN103755885A (en) | Method for solid-phase synthesis of polycarboxylate water reducer by virtue of microwave assistance | |
| CN111978010B (en) | Silicon-containing graphene oxide magnetic polycarboxylate water reducer containing allyl alcohol polyoxyethylene ether | |
| CN112062913B (en) | Silicon-containing graphene oxide magnetic polycarboxylate water reducer containing isopentenol polyoxyethylene ether |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180608 |