CN111978484A - Silicon-containing magnetic polycarboxylate water reducer containing 4-hydroxybutyl polyoxyethylene ether - Google Patents
Silicon-containing magnetic polycarboxylate water reducer containing 4-hydroxybutyl polyoxyethylene ether Download PDFInfo
- Publication number
- CN111978484A CN111978484A CN202010942758.2A CN202010942758A CN111978484A CN 111978484 A CN111978484 A CN 111978484A CN 202010942758 A CN202010942758 A CN 202010942758A CN 111978484 A CN111978484 A CN 111978484A
- Authority
- CN
- China
- Prior art keywords
- polyoxyethylene ether
- silane
- water
- reducing agent
- solution
- 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.)
- Granted
Links
- 229920000056 polyoxyethylene ether Polymers 0.000 title claims abstract description 49
- 229940051841 polyoxyethylene ether Drugs 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 34
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 10
- SXIFAEWFOJETOA-UHFFFAOYSA-N 4-hydroxy-butyl Chemical group [CH2]CCCO SXIFAEWFOJETOA-UHFFFAOYSA-N 0.000 title claims abstract description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 8
- 239000010703 silicon Substances 0.000 title claims abstract description 8
- 229920005646 polycarboxylate Polymers 0.000 title claims description 11
- 229910000077 silane Inorganic materials 0.000 claims abstract description 23
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 22
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 13
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 9
- 239000000178 monomer Substances 0.000 claims abstract description 9
- 239000003999 initiator Substances 0.000 claims abstract description 7
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000012986 chain transfer agent Substances 0.000 claims abstract description 5
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 16
- 239000004568 cement Substances 0.000 claims description 15
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 239000008030 superplasticizer Substances 0.000 claims description 6
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 5
- -1 polyoxyethylene Polymers 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 230000007062 hydrolysis Effects 0.000 claims description 2
- 238000006460 hydrolysis reaction Methods 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 5
- 239000004566 building material Substances 0.000 abstract description 2
- 238000011160 research Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 125000001033 ether group Chemical group 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001955 polymer synthesis method Methods 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- BUQNAQHRHJBFMN-UHFFFAOYSA-M sodium 1-oxobut-2-ene-1-sulfonate Chemical compound CC=CC(=O)S(=O)(=O)[O-].[Na+] BUQNAQHRHJBFMN-UHFFFAOYSA-M 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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
- C04B24/2688—Copolymers containing at least three different monomers
- C04B24/2694—Copolymers containing at least three different monomers containing polyether side chains
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
-
- 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
- C08F292/00—Macromolecular compounds obtained by polymerising monomers on to inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of building materials, and particularly relates to a silicon-containing magnetic water reducing agent containing 4-hydroxybutyl polyoxyethylene ether, which is prepared by adding initiator ammonium persulfate, chain transfer agent thioglycolic acid and water into polyoxyethylene ether A, polyoxyethylene ether B, acrylic acid and silane C as polymerization monomers; and discloses a preparation method of the water reducing agent. The application of the invention can obviously improve the fluidity of the slurry, the retentivity and the compressive strength of the concrete.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a silicon-containing magnetic polycarboxylate water reducer containing 4-hydroxybutyl polyoxyethylene ether.
Background
The water reducing agent is an essential chemical admixture for improving slag-based cementing materials and concrete products, and can obviously improve the comprehensive properties of the products such as workability, compactness, strength, durability and the like under the condition of lower water-cement ratio.
The polycarboxylate superplasticizer is used as a third-generation water reducer product, has strong designability of molecular structure and high potential of high performance, and can be copolymerized by selecting monomers with different functions to prepare a multifunctional product. However, in recent years, the quality problems of cement, mineral admixture, coarse aggregate, fine aggregate and the like are serious, and in addition, the problems that the polycarboxylic acid water reducing agent is not suitable for concrete and fresh concrete is easy to bleed, separate, collapse and damage too fast due to the fact that cement in China is various in varieties and engineering mixing ratios are various are often caused. Therefore, through the research of molecular structure design, synthesis process and action mechanism, the functionality of the polycarboxylate superplasticizer is continuously improved, so that the polycarboxylate superplasticizer has good adaptability to different cements, mineral admixtures, poor-quality sandstone materials and the like, which has become the key point of domestic and foreign research.
At present, the domestic and foreign research on the polycarboxylic acid water reducing agent mainly focuses on the following aspects: (1) research on polymer synthesis methods and processes; (2) exploring the relation between the structure and the performance; (3) designing polymer molecules through the existing theoretical basis; (4) the action mechanism of the water reducing agent is presumed according to the relationship between the structure and the performance; (5) gradually explores a new process for synthesizing the water reducer with better performance through the guidance of action mechanism and research rule. Due to the diversity of molecular structure design of the polycarboxylic acid water-reducing agent and the inevitable relation between the structure and the performance, the research in the field is very active, and the number of novel high-performance polycarboxylic acid water-reducing agents is large.
A typical polycarboxylate water reducing agent is a graft copolymer with surface activity, which has a comb-shaped structure and usually consists of two basic components, namely a main chain and a side chain. The main chain of the water reducing agent generally contains a large number of ionizable carboxyl groups, and after the carboxyl groups are ionized in water, the water reducing agent molecules are adsorbed and anchored on the surfaces of cement particles through the action force among ions, so that electrostatic repulsion force exists among the cement particles; the side chain is usually a hydrophilic polyether long chain such as polyethylene glycol monomethyl ether or polypropylene glycol monomethyl ether with the relative molecular weight of 500-3000, and the side chain can be fully extended in water, so that steric hindrance repulsion is provided for cement particles, and the dispersibility of the cement particles is improved. The combined action of the two repulsion forces greatly improves the dispersibility of cement particles, so that the cement product added with the polycarboxylate superplasticizer has excellent comprehensive performance.
Disclosure of Invention
One of the purposes of the invention is to provide a silicon-containing magnetic polycarboxylate water reducer containing 4-hydroxybutyl polyoxyethylene ether.
The invention also aims to provide a preparation method of the silicon-containing magnetic polycarboxylate superplasticizer containing 4-hydroxybutyl polyoxyethylene ether.
In order to achieve the purpose, the invention adopts the following technical scheme:
a silicon-containing polycarboxylic acid water reducing agent is characterized in that: the polyether-modified acrylic acid is prepared by taking polyoxyethylene ether A, polyoxyethylene ether B, acrylic acid and silane C as polymerization monomers and adding an initiator ammonium persulfate, a chain transfer agent thioglycolic acid and water, and comprises the following components in parts by weight:
10-20 parts of polyoxyethylene ether A
10-20 parts of polyoxyethylene ether B
40-60 parts of acrylic acid
10-20 parts of silane C
0.3 to 1 portion of ammonium persulfate
0.15 to 0.25 portion of 3-mercaptoacetic acid
100 portions of deionized water and 400 portions;
the polyoxyethylene ether A has the structure as follows:
the polyoxyethylene ether B is 4-hydroxybutyl polyoxyethylene ether, and the number of the polyoxyethylene repeating units is 150-300;
the structure of the silane C is as follows:
the silane C can be obtained by the reaction of silane D and ferroferric oxide, and the structure of the silane D is
Further, silane D is obtained by reacting a silane monomer having an amino group and an alkoxy group with maleic anhydride, and then adding further alkoxysilane for hydrolysis.
Further, the number of the polyoxyethylene repeating units in the polyoxyethylene ether B is 200-250. Researches show that the performance can be better improved by adding polyoxyethylene ether B with larger molecular weight and polyoxyethylene ether A with lower molecular weight.
Further, n of polyoxyethylene ether a is 30 to 40.
The preparation method of the water reducing agent is characterized by comprising the following steps: all the components are subjected to initiator polymerization reaction under the action of an initiator, and the water reducer is obtained after post-treatment.
Further, the preparation method comprises the following steps: adding polyoxyethylene ether A, polyoxyethylene ether B and deionized water into a reaction kettle, and heating and dissolving at the temperature of 20-80 ℃ to obtain a solution A; respectively and simultaneously dripping a deionized water solution of ammonium persulfate and a deionized water mixed solution of acrylic acid, silane C and a chain transfer agent into the solution A, dripping for 3.0 hours at the temperature of 60 ℃, preserving heat for reaction for 1.0 hour at the temperature of 60 ℃ after dripping is finished, and cooling to room temperature after the reaction is finished to obtain a solution B; and adding 30% by mass of liquid alkali into the solution B, and adjusting the pH value to 6-8 to obtain the polycarboxylic acid water reducing agent.
Furthermore, the application of the water reducing agent is used in cement to obtain magnetic cement.
The polyoxyethylene ether A monomer provides two polyoxyethylene ether side chains on the side chains, the polyoxyethylene ether B provides a longer polyoxyethylene ether side chain, the hydroxysilane C contains the nano ferroferric oxide surface and active hydroxyl for condensation, more ferroferric oxide particles are introduced, the steric hindrance effect of inorganic particles is better played, the ferroferric oxide provides the magnetic effect, and the performance of the water reducing agent is improved; particularly, the fluidity of the slurry, the retentivity and the compressive strength of the concrete are effectively improved, and small molecular monomers such as acrylamide, sodium methylacrylsulfonate and the like do not need to be added into the monomers.
The invention has the beneficial effects that:
(1) the invention can effectively improve the fluidity and the retentivity of the slurry and the compressive strength of the concrete.
(2) The invention has the advantages of simple and feasible process, obvious product effect and good engineering application prospect.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described with reference to the embodiments, but the present invention is not limited to these examples.
Example 1
Adding polyoxyethylene ether A, polyoxyethylene ether B and deionized water into a reaction kettle, and heating and dissolving at the temperature of 20-80 ℃ to obtain a solution A; respectively and simultaneously dripping a deionized water solution of ammonium persulfate and a deionized water mixed solution of acrylic acid, silane C and mercaptopropionic acid into the solution A, dripping for 3.0 hours at the temperature of 60 ℃, preserving heat at the temperature of 60 ℃ after dripping is finished, reacting for 1.0 hour, and cooling to room temperature after the reaction is finished to obtain a solution B; and adding 30% by mass of liquid alkali into the solution B, and adjusting the pH value to 6-8 to obtain the polycarboxylic acid water reducing agent.
The polyoxyethylene ether A has the structure that:
the dosage of each component is as follows:
15 portions of polyoxyethylene ether A
15 portions of polyoxyethylene ether B
Acrylic acid 50 parts
Silane C15 parts
0.5 part of ammonium persulfate
0.2 part of 3-mercaptoacetic acid
300 parts of deionized water;
example 2
The procedure was repeated as in example 1 except that n of polyoxyethylene ether A was 20.
Example 3
The procedure was repeated as in example 1 except that n of polyoxyethylene ether A alone was changed to 50.
Example 4
The other examples were the same as example 1 except that the number of the repeating units of polyoxyethylene ether B alone was 100.
Example 5
The other examples were the same as example 1 except that the number of the repeating units of polyoxyethylene ether B alone was 250.
Example 6
The procedure is as in example 1 except that silane C is not added.
Example 7
The procedure is as in example 1 except that polyoxyethylene ether A is not added.
Example 8
The procedure is as in example 1 except that polyoxyethylene ether B is not added.
The method comprises the steps of measuring the fluidity of the net slurry by using the organic-inorganic hybrid polycarboxylic acid water reducing agent in the embodiments 1-8 according to GB/T8077-: reference cement 360Kg/m3792Kg/m of sand3290Kg/m of small stone3(5-10 mm), 678Kg/m of rubble3(10-20 mm) and the water-to-glue ratio is 0.4. The results of the experiment are shown in the following table:
as can be seen from the above table, the water reducing agent of the present invention has good effects in improving the fluidity of the slurry and the retentivity and compressive strength of the concrete.
Claims (8)
1. A silicon-containing magnetic polycarboxylate superplasticizer is characterized in that: the polyether-modified acrylic acid is prepared by taking polyoxyethylene ether A, polyoxyethylene ether B, acrylic acid and silane C as polymerization monomers and adding an initiator ammonium persulfate, a chain transfer agent thioglycolic acid and water, and comprises the following components in parts by weight:
10-20 parts of polyoxyethylene ether A
10-20 parts of polyoxyethylene ether B
40-60 parts of acrylic acid
10-20 parts of silane C
0.3 to 1 portion of ammonium persulfate
0.15 to 0.25 portion of 3-mercaptoacetic acid
100 portions of deionized water and 400 portions;
the polyoxyethylene ether A has the structure as follows:
the polyoxyethylene ether B is 4-hydroxybutyl polyoxyethylene ether, and the number of the polyoxyethylene repeating units is 150-300;
the structure of the silane C is as follows:
2. the water reducing agent according to claim 1, characterized in that: the silane C is obtained by the reaction of silane D and nano ferroferric oxide, and the structure of the silane D is
3. The water reducing agent according to claim 2, wherein silane D is prepared by reacting silane monomer with amino and alkoxy with maleic anhydride, and then adding alkoxy silane for hydrolysis.
4. The water-reducing agent according to claim 1 to 3, wherein the number of the polyoxyethylene repeating units in the polyoxyethylene ether B is 200-250.
5. The water reducer according to claims 1 to 4, wherein n-30 to 40 of polyoxyethylene ether A.
6. A preparation method for preparing the water reducing agent of claims 1-5 is characterized by comprising the following steps: all the components are subjected to initiator polymerization reaction under the action of an initiator, and the water reducer is obtained after post-treatment.
7. The method of claim 6, wherein: adding polyoxyethylene ether A, polyoxyethylene ether B and deionized water into a reaction kettle, and heating and dissolving at the temperature of 20-80 ℃ to obtain a solution A; respectively and simultaneously dripping a deionized water solution of ammonium persulfate and a deionized water mixed solution of acrylic acid, silane C and a chain transfer agent into the solution A, dripping for 3.0 hours at the temperature of 60 ℃, preserving heat for reaction for 1.0 hour at the temperature of 60 ℃ after dripping is finished, and cooling to room temperature after the reaction is finished to obtain a solution B; and adding 30% by mass of liquid alkali into the solution B, and adjusting the pH value to 6-8 to obtain the polycarboxylic acid water reducing agent.
8. Use of the water reducer of claim 1 in cement to obtain magnetic cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010942758.2A CN111978484B (en) | 2020-09-09 | 2020-09-09 | Silicon-containing magnetic polycarboxylate water reducer containing 4-hydroxybutyl polyoxyethylene ether |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010942758.2A CN111978484B (en) | 2020-09-09 | 2020-09-09 | Silicon-containing magnetic polycarboxylate water reducer containing 4-hydroxybutyl polyoxyethylene ether |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111978484A true CN111978484A (en) | 2020-11-24 |
| CN111978484B CN111978484B (en) | 2023-06-23 |
Family
ID=73450414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010942758.2A Expired - Fee Related CN111978484B (en) | 2020-09-09 | 2020-09-09 | Silicon-containing magnetic polycarboxylate water reducer containing 4-hydroxybutyl polyoxyethylene ether |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111978484B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031729A (en) * | 2021-12-14 | 2022-02-11 | 山西凯迪建材有限公司 | Preparation method of high-efficiency powdery water reducing agent with siloxane structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105837763A (en) * | 2016-06-04 | 2016-08-10 | 石家庄市长安育才建材有限公司 | Silane polycarboxylate water-reducing agent and preparation method thereof |
| CN105949402A (en) * | 2016-04-26 | 2016-09-21 | 同济大学 | Anti-sulfate competitive adsorption type silane modified polycarboxylate water reducing agent and preparation method thereof |
| CN110128603A (en) * | 2019-06-11 | 2019-08-16 | 云南建投高分子材料有限公司 | Stablize the method for synthesis polycarboxylate water-reducer under cryogenic conditions |
-
2020
- 2020-09-09 CN CN202010942758.2A patent/CN111978484B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949402A (en) * | 2016-04-26 | 2016-09-21 | 同济大学 | Anti-sulfate competitive adsorption type silane modified polycarboxylate water reducing agent and preparation method thereof |
| CN105837763A (en) * | 2016-06-04 | 2016-08-10 | 石家庄市长安育才建材有限公司 | Silane polycarboxylate water-reducing agent and preparation method thereof |
| CN110128603A (en) * | 2019-06-11 | 2019-08-16 | 云南建投高分子材料有限公司 | Stablize the method for synthesis polycarboxylate water-reducer under cryogenic conditions |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031729A (en) * | 2021-12-14 | 2022-02-11 | 山西凯迪建材有限公司 | Preparation method of high-efficiency powdery water reducing agent with siloxane structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111978484B (en) | 2023-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3398916B1 (en) | Phosphorylated polycondensate as high efficiency water reducing agent and preparation method thereof | |
| CN107337766B (en) | High-adaptability polycarboxylate superplasticizer and preparation method thereof | |
| CN109987870B (en) | High-efficiency concrete water reducing agent and preparation method thereof | |
| JP6074517B2 (en) | Method for producing slump retention type polycarboxylate-based high performance fluidizing agent | |
| CN103613306B (en) | A kind of poly carboxylic acid series water reducer containing hyperbranched polyamine-ester structure and preparation method thereof | |
| CN107325234B (en) | Anti-mud phosphate modified polycarboxylate superplasticizer and preparation method thereof | |
| CN112707674B (en) | High-adsorption dispersion type polycarboxylate superplasticizer and preparation method thereof | |
| CN107652405B (en) | Polycarboxylate superplasticizer with amide/imide structure and preparation method thereof | |
| CN101353397B (en) | Water-soluble grafting polycarboxylic acids dehydragent and preparation thereof | |
| CN101050081A (en) | High performance water reducing agent in new type comb shaped molecular structure | |
| CN104725573A (en) | Superplasticizer for facilitating cement hydration, preparation method thereof and application | |
| CN100509683C (en) | Low molecular weight copolymer dispersant and preparing method thereof | |
| CN113831463B (en) | Amphoteric hyperbranched mud-inhibiting type polycarboxylate water reducer and preparation method thereof | |
| CN111378083B (en) | Polycarboxylic acid dispersant with star structure and preparation method and application thereof | |
| CN104193215B (en) | Ternary block macromonomer graft copolymerization high-property polycarboxylic acid water-reducing agent and preparation method thereof | |
| CN114478943B (en) | Modified cyclodextrin grafted block polycarboxylate superplasticizer and preparation method thereof | |
| CN110283329B (en) | A kind of special superplasticizer for machine-made sand concrete and preparation method thereof | |
| KR20170094120A (en) | Low-to-mid-range water reduction using polycarboxylate comb polymers | |
| CN100381387C (en) | A kind of amphoteric carboxylic acid comb-shaped graft copolymer concrete superplasticizer | |
| CN111978484A (en) | Silicon-containing magnetic polycarboxylate water reducer containing 4-hydroxybutyl polyoxyethylene ether | |
| CN111978010B (en) | Silicon-containing graphene oxide magnetic polycarboxylate water reducer containing allyl alcohol polyoxyethylene ether | |
| CN107722194B (en) | High-water-reduction polycarboxylic acid cement dispersant and preparation method thereof | |
| CN114044856A (en) | Mud-blocking type polycarboxylate superplasticizer and preparation method thereof | |
| CN112062913B (en) | Silicon-containing graphene oxide magnetic polycarboxylate water reducer containing isopentenol polyoxyethylene ether | |
| CN112194762A (en) | Preparation method of non-crosslinked reticular polycarboxylic acid water reducing agent |
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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lei Zhen Inventor after: Pei Fei Inventor after: Shi Yu Inventor before: Lei Zhen Inventor before: Wang Qian Inventor before: Li Shaoyan Inventor before: Zheng Yu |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220804 Address after: Room 503, Jixiang building, No. 178, south section of Hanguang Road, Yanta District, Xi'an, Shaanxi 710065 Applicant after: Xi'an Institute of quality and standardization Applicant after: China Standardization magazine Co.,Ltd. Address before: Room 503, Jixiang building, No. 178, south section of Hanguang Road, Yanta District, Xi'an, Shaanxi 710065 Applicant before: Xi'an Institute of quality and standardization |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |