CN110028632A - Anti- chamotte mould polycarboxylate water-reducer of high water reduction and preparation method thereof - Google Patents
Anti- chamotte mould polycarboxylate water-reducer of high water reduction and preparation method thereof Download PDFInfo
- Publication number
- CN110028632A CN110028632A CN201910338903.3A CN201910338903A CN110028632A CN 110028632 A CN110028632 A CN 110028632A CN 201910338903 A CN201910338903 A CN 201910338903A CN 110028632 A CN110028632 A CN 110028632A
- Authority
- CN
- China
- Prior art keywords
- water
- parts
- reducer
- monomer
- preparation
- 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
- 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
- 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
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses anti-chamotte mould polycarboxylate water-reducers of a kind of high water reduction and preparation method thereof, which includes following raw material: polyether monomer, unsaturated monomer, chain-transferring agent, reducing agent, oxidant, function monomer, liquid alkaline and first part's water, second part water, Part III water and Part IV water.Preparation method: first part's water and polyether monomer are added in reaction kettle, stir into clear solution as bottom material；By the A material of unsaturated monomer, chain-transferring agent, function monomer and second part water composition, the B that reducing agent and Part III water form is expected；Bottom material is added in oxidant, while A material and B material is added dropwise；After reaction, Part IV water is added in liquid feeding alkali.The existing apparent water-reducing rate of water-reducing agent of the invention, but to containing in concrete, higher clay, the sandstone material of mountain flour are insensitive, and concrete slump loss is controllable and adaptability for materials is wide, has wide range of applications；Simple process, reaction time is short, easy to operate, high production efficiency.
Description
Technical field
The present invention relates to technical field of concrete additives, more particularly to a kind of anti-chamotte mould polycarboxylate water-reducer of high water reduction
And preparation method thereof.
Background technique
With the continuous development for push building industry of urbanization, the demand to concrete is increasing, so that
It is more and more in short supply in high-grade sandstone raw material, cause high clay content sand in construction concrete, Machine-made Sand, CHARACTERISTICS OF TAILINGS SAND into
Market is entered, and then concrete quality occurs collapsing and damages phenomena such as big, workability is bad, intensity is insufficient in constructing, to concrete
And the quality of water-reducing agent proposes acid test.
108948285 A of Chinese patent CN discloses a kind of preparation method of high water reduction high collapse protection type carboxylic acid water reducer, should
The water-reducing agent water-reducing rate of patent synthesis is high, collapse protection type is good and has certain anti-mud effect, but its production process need to provide nitrogen
Environment and 5h need to be reacted under the conditions of 70-90 DEG C, production efficiency is lower, and cost performance is not high.108794700 A of Chinese patent CN
It discloses and a kind of is occurred using unsaturated polyether polymeric monomer and one step of acrylic ester monomer into a kind of carboxyl polymer, the polymerization
Object has good slow release effect in the hydration process of concrete, but the polymer concrete water-reducing rate is lower, and when use needs
Being used in compounding with water reducing type carboxylic acid water reducer can be only achieved effect.
However, current water-reducing agent water-reducing rate is lower, it is quick to higher clay, the sandstone material of mountain flour is contained in concrete
Sense, concrete slump loss is uncontrollable and application range is narrow, and complex process, and reaction time is long, inconvenient for operation.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of anti-chamotte mould polycarboxylate water-reducer of high water reduction and its preparation sides
Method, the existing apparent water-reducing rate of the water-reducing agent, and it is insensitive to higher clay, the sandstone material of mountain flour is contained in concrete, it mixes
Solidifying soil slump-loss is controllable and adaptability for materials is wide, has wide range of applications；The water-reducing agent produces temperature at 5-40 DEG C, and
Simple process, reaction time is short, easy to operate, high production efficiency, and cost performance is high.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: it is poly- to provide a kind of anti-chamotte mould of high water reduction
Carboxylic acid water reducer, the raw material including following parts by weight:
200-250 parts of polyether monomer,
18-26 parts of unsaturated monomer,
0.5-3 parts of chain-transferring agent,
0.2-0.6 parts of reducing agent,
1.8-2.5 parts of oxidant,
3-8 parts of function monomer,
8-15 parts of liquid alkaline,
290-380 parts of water,
Wherein, the moisture is four parts, including first part's water, second part water, Part III water and Part IV water.
In a preferred embodiment of the present invention, the polyether monomer is glycol divinyl ether polyoxyethylene ether.
In a preferred embodiment of the present invention, the unsaturated monomer be acrylic acid and methacrylic acid one kind or
Two kinds；Chain-transferring agent is one of mercaptopropionic acid, thioacetic acid, methylpropene sodium sulfonate.
In a preferred embodiment of the present invention, which is characterized in that the reducing agent is anhydrous slufuric acid ferrous iron, hypophosphorous acid
One of sodium and vitamin C are a variety of, and the oxidant is one of hydrogen peroxide and ammonium persulfate.
In a preferred embodiment of the present invention, the mass percent concentration of the liquid alkaline is 32%.
In a preferred embodiment of the present invention, the function monomer is ethylene glycol diacrylate, N, N- methylene
What blocks one or both of amidophosphoric acid ester to bisacrylamide.
Present invention employs polyether monomer, function monomers under redox initiation system initiation, under chain-transferring agent effect
A kind of anti-mud water-reducing agent of high water reduction type of the polyether group with carboxyl and long side chain of star structure is generated, the water-reducing agent is existing
Apparent water-reducing rate, but to containing in concrete, higher clay, the sandstone material of mountain flour are insensitive, and concrete slump loss can
It controls and adaptability for materials is wide, have wide range of applications.
In order to solve the above technical problems, another technical solution used in the present invention is: providing a kind of anti-chamotte mould of high water reduction
The preparation method of polycarboxylate water-reducer, comprising the following steps:
(1) first part's water and polyether monomer are added in reaction kettle, stir into clear solution as bottom material；
(2) the A material of unsaturated monomer, chain-transferring agent, function monomer and second part water composition is spare, by reducing agent and third
The B material of part water composition is spare；
(3) bottom material is added in oxidant, stirred evenly, while A material and B material is added dropwise；
(4) after reaction, it is cooled to room temperature, liquid feeding alkali adjustment pH value to 5-8, addition Part IV water to required solid content,
Up to high water reduction and with the polycarboxylate water-reducer of anti-mud property.
In a preferred embodiment of the present invention, it is stirred in step (1) and controls temperature in 10-20 DEG C of range.
In a preferred embodiment of the present invention, temperature range control is in 15-40 during A material and B material is added dropwise in step (3)
℃。
In a preferred embodiment of the present invention, A expects that time for adding 0.5-3h, B expect time for adding 0.5- in step (3)
3.5h。
Draw the beneficial effects of the present invention are: present invention employs polyether monomer, function monomers in redox initiation system
It gives, a kind of anti-mud of high water reduction type of the polyether group with carboxyl and long side chain of star structure is generated under chain-transferring agent effect
Water-reducing agent, the existing apparent water-reducing rate of the water-reducing agent, and it is unwise to higher clay, the sandstone material of mountain flour is contained in concrete
Sense, concrete slump loss is controllable and adaptability for materials is wide, has wide range of applications；The water-reducing agent produces temperature at 5-40 DEG C
Can, and simple process, reaction time is short, easy to operate, high production efficiency, and cost performance is high.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
GPEG-3000 is the glycol divinyl ether polyoxyethylene ether of molecular weight 3000, oxidant (hydrogen peroxide, quality hundred
Dividing specific concentration is 27.5%, liquid alkaline (mass percent concentration 32%).
Embodiment 1
A kind of anti-chamotte mould polycarboxylate water-reducer of high water reduction (mass percentage content 40% of effective component), including following parts by weight
Raw material: 225 parts of GPEG-3000,22 parts of acrylic acid, 0.95 part of mercaptopropionic acid, 5 parts of ethylene glycol diacrylate, vitamin C
0.3 part, 2.0 parts of hydrogen peroxide, 10 parts of liquid alkaline, 160 parts of first part's water, 8.5 parts of second part water, 30 parts of Part III water and
Four 130 parts of part water.
Preparation method specifically includes the following steps:
(1) 160 parts and 225 parts of polyether monomer GPEG-3000 of first part's water are sequentially added in reaction kettle, stirs and controls
Temperature stirs into clear solution as bottom material in 10 DEG C of ranges；
(2) by 8.5 parts of 22 parts of acrylic acid, 0.95 part of mercaptopropionic acid, 5 parts of ethylene glycol diacrylate, second part water composition A material
Spare, 30 parts of 0.3 part of vitamin C, Part III water composition B material are spare；
(3) control bottom material temperature is stablized at 10 DEG C, and 2.0 parts of addition bottom materials of hydrogen peroxide stir evenly, while A material and B is added dropwise
Material, temperature control guarantees temperature-rise period all the way up during being added dropwise at 15 DEG C during dropwise addition, avoids fluctuating up and down, A drop
Control expects time for adding in 50 ± 5min, in 30 DEG C of heat preservation 0.5h after dripping off in 40 ± 5min, B between added-time；
(4) after reaction, be cooled to room temperature, 10 parts of adjustment pH values of liquid feeding alkali to 5-8, fill into 130 parts of Part IV water to get
High water reduction and the polycarboxylate water-reducer with anti-mud property.
Embodiment 2
A kind of anti-chamotte mould polycarboxylate water-reducer of high water reduction (mass percentage content 40% of effective component), including following parts by weight
Raw material: 200 parts of GPEG-3000,26 parts of acrylic acid, 0.5 part of mercaptopropionic acid, 8 parts of alkyl acrylate phosphate, vitamin C
0.45 part, 0.15 part of sodium hypophosphite, 2.5 parts of hydrogen peroxide, 8 parts of liquid alkaline, 160 parts of first part's water, 8.5 parts of second part water,
30 parts and 100 parts of Part IV water of three parts water.
Preparation method specifically includes the following steps:
(1) 160 parts and 200 parts of polyether monomer GPEG-3000 of first part's water are sequentially added in reaction kettle, stirs and controls
Temperature stirs into clear solution as bottom material in 15 DEG C of ranges；
(2) by 8.5 parts of 26 parts of acrylic acid, 3 parts of mercaptopropionic acid, 8 parts of alkyl acrylate phosphate, second part water composition A material
Spare, 30 parts of 0.45 part of vitamin C, 0.15 part of sodium hypophosphite, Part III water composition B material are spare；
(3) control bottom material temperature is stablized at 15 DEG C, and 2.5 parts of addition bottom materials of hydrogen peroxide stir evenly, while A material and B is added dropwise
Material, temperature control guarantees temperature-rise period all the way up during being added dropwise at 25 DEG C during dropwise addition, avoids fluctuating up and down, A drop
Control expects time for adding in 50 ± 5min, in 35 DEG C of heat preservation 0.5h after dripping off in 40 ± 5min, B between added-time；
(4) after reaction, be cooled to room temperature, 10 parts of adjustment pH values of liquid feeding alkali to 5-8, fill into 100 parts of Part IV water to get
High water reduction and the polycarboxylate water-reducer with anti-mud property.
Embodiment 3
A kind of anti-chamotte mould polycarboxylate water-reducer of high water reduction (mass percentage content 40% of effective component), including following parts by weight
Raw material: 250 parts of GPEG-3000,18 parts of acrylic acid, 0.5 part of mercaptopropionic acid, 3 parts of 2-hydroxyethyl methacrylate phosphoric acid,
0.2 part of vitamin C, 1.8 parts of hydrogen peroxide, 15 parts of liquid alkaline, 160 parts of first part's water, 8.5 parts of second part water, Part III water
30 parts and 180 parts of Part IV water.
Preparation method specifically includes the following steps:
(1) 160 parts and 250 parts of polyether monomer GPEG-3000 of first part's water are sequentially added in reaction kettle, stirs and controls
Temperature stirs into clear solution as bottom material in 20 DEG C of ranges；
(2) by 18 parts of acrylic acid, 0.5 part of mercaptopropionic acid, 3 parts of 2-hydroxyethyl methacrylate phosphoric acid, 8.5 parts of second part water
It is spare to form A material, 30 parts of 0.2 part of vitamin C, Part III water composition B material are spare；
(3) control bottom material temperature is stablized at 20 DEG C, and 1.8 parts of addition bottom materials of hydrogen peroxide stir evenly, while A material and B is added dropwise
Material, temperature control guarantees temperature-rise period all the way up during being added dropwise at 35 DEG C during dropwise addition, avoids fluctuating up and down, A drop
Control expects time for adding in 50 ± 5min, in 40 DEG C of heat preservation 0.5h after dripping off in 40 ± 5min, B between added-time；
(4) after reaction, be cooled to room temperature, 15 parts of adjustment pH values of liquid feeding alkali to 5-8, fill into 180 parts of Part IV water to get
High water reduction and the polycarboxylate water-reducer with anti-mud property.
HPEG-2400 is the isobutene alcohol polyoxyethylene ether of molecular weight 2400, and TPEG-2400 is the isoamyl of molecular weight 2400
Enol polyoxyethylene ether, oxidant (hydrogen peroxide, mass percent concentration 27.5%), (mass percent concentration is liquid alkaline
32%).
Comparative example 1
A kind of water reducing type polycarboxylate water-reducer (mass percentage content 40% of effective component), the raw material including following parts by weight:
245 parts of HPEG-2400,35 parts of acrylic acid, 1.5 parts of oxidant, 0.6 part of reducing agent (vitamin C, pharmaceutical grade), mercaptopropionic acid 1
Part, 4.5 parts of liquid alkaline, 135 parts of first part's water, 100 parts of second part water, 60 parts of Part III water and 110 parts of Part IV water.
Specific production stage is as follows:
(1) 245 parts of HPEG-2400 is stirred and is dissolved with first part 135 parts of addition flasks of water, control temperature in 15 DEG C of models
It encloses interior as bottom material；
(2) that 35 parts of acrylic acid, 1 part of mercaptopropionic acid and 100 parts of second part water are configured to A material is spare, 0.6 part of vitamin C and
60 parts of Part III water be configured to B material it is spare；
(3) by 1.5 parts of addition bottom materials of hydrogen peroxide, while A material and B material is added dropwise, starts 15 DEG C of dropping temperature, temperature range control exists
20 DEG C, A expects that time for adding 3h, B expect time for adding 3.5h；
(4) after dripping off A, B material, in 35 DEG C of heat preservation 1h, 4.5 parts of liquid feeding alkali neutralizations fill into 100 parts of Part IV water to get diminishing
Type polycarboxylate water-reducer.
Comparative example 2
A kind of collapse protective poly-carboxylic acid water reducing agent, is mainly prepared from the following components:
255 parts of TPEG-2400, acrylic acid, mercaptopropionic acid, oxidant, reducing agent (vitamin C, pharmaceutical grade), 3.5 parts of liquid alkaline,
150 parts of first part's water, 110 parts of second part water, 70 parts of Part III water and 80 parts of Part IV water.
Specific production stage is as follows:
(1) 255 parts of TPEG-2400 is stirred and is dissolved with first part 150 parts of addition flasks of water, control temperature at 15-20 DEG C
Bottom material is used as in range；
(2) 20 parts of acrylic acid and 110 parts of second part water are configured to A and expect spare, 0.6 part of vitamin C and Part III water 70
It is spare that part is configured to B material；
(3) bottom material is added in 1.5 parts of hydrogen peroxide, while A material and B material is added dropwise, start 18 DEG C of dropping temperature, temperature range control exists
30 DEG C, A expects that time for adding 3h, B expect time for adding 3.5h；
(4) after dripping off A, B material, in 43 DEG C of heat preservation 0.5-2h, 3.5 parts of liquid feeding alkali neutralizations fill into 80 parts of Part IV water to get guarantor
The type that collapses polycarboxylate water-reducer.
The anti-chamotte mould polycarboxylate water-reducer of high water reduction that respectively prepared by testing example 1,2,3 subtracts with prepared by comparative example 1,2
(illustrate: 80% comparative example 1+20% comparative example 2 is for water type, the flowing degree of net paste of cement of collapse protection type water-reducing agent, concrete correlated performance
The collapse protective poly-carboxylic acid water reducing agent that weight percent is 80% water reducing type polycarboxylate water-reducer and weight percent is 20% it is compound
Object).Experiment condition: test water mud is 42.5 ordinary portland cements, and experiment is weight percentage with sand as 70% Machine-made Sand
(modulus 3.5, it is 30% fine sand (modulus 1.5, mud in fine sand that the weight percentage of mountain flour, which is 5%)+weight percent, in Machine-made Sand
Weight percentage be 2%).Common river sand is replaced to examine the anti-slump of water-reducing agent by Machine-made Sand containing mountain flour and fine sand containing mud
Loss ability.Specific experiment data are shown in Table 1, table 2.
1 flowing degree of net paste of cement of table
| Sample code name | Initial fluidity mm | 1h mobility mm |
| Embodiment 1 | 225 | 215 |
| Embodiment 2 | 230 | 212 |
| Embodiment 3 | 220 | 210 |
| Comparative example 1 | 225 | 140 |
| Comparative example 2 | 183 | 195 |
| 80% comparative example 1+20% comparative example 2 | 210 | 175 |
2 concrete performance of table
| Sample code name | Initial slump mm/ divergence mm | 1h through when slump mm/ divergence mm |
| Embodiment 1 | 210/(560*580) | 200/(530*525) |
| Embodiment 2 | 215/(570*580) | 195/(520*520) |
| Embodiment 3 | 210/(560*550) | 195/(515*520) |
| Comparative example 1 | 205/(550*560) | 130/(350*365) |
| Comparative example 2 | 190 / (520*525) | 185 /(490*500) |
| 80% comparative example 1+20% comparative example 2 | 195 / (530*530) | 165 /(430*450) |
As can be seen from the above data, either flowing degree of net paste of cement or concrete performance, height prepared by embodiment 1,2,3
The anti-chamotte mould polycarboxylate water-reducer water-reducing property of diminishing reaches a kind of water-reducing rate requirement of the water reducing type polycarboxylate water-reducer of comparative example 1,
Function of slump protection reaches a kind of requirement of the collapse protective poly-carboxylic acid water reducing agent of comparative example 2 again simultaneously, and diminishing function of slump protection reaches simultaneously
(80% comparative example 1+20% comparative example 2) performance requirement after even more than two kinds of water-reducing agents are compound.
The water-reducing rate up to 35% or more of the anti-chamotte mould polycarboxylate water-reducer of high water reduction of the invention is guaranteeing the same of water-reducing rate
When anti-mud slow release effect it is obvious, the basic free of losses of the concrete 1h slump, 2h slump-loss be no more than 3cm.And concrete
State is soft and is not easy bleeding, and playing the role of, which significantly reduces concrete viscosity, improves concrete workability.To configuration high water reduction
The demanding concrete of large fluidity, slump-loss plays the role of positive.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of anti-chamotte mould polycarboxylate water-reducer of high water reduction, which is characterized in that the raw material including following parts by weight:
200-250 parts of polyether monomer,
18-26 parts of unsaturated monomer,
0.5-3 parts of chain-transferring agent,
0.2-0.6 parts of reducing agent,
1.8-2.5 parts of oxidant,
3-8 parts of function monomer,
8-15 parts of liquid alkaline,
290-380 parts of water,
Wherein, the moisture is four parts, including first part's water, second part water, Part III water and Part IV water.
2. the anti-chamotte mould polycarboxylate water-reducer of high water reduction according to claim 1, which is characterized in that the polyether monomer is
Glycol divinyl ether polyoxyethylene ether.
3. the anti-chamotte mould polycarboxylate water-reducer of high water reduction according to claim 1, which is characterized in that the unsaturated monomer
For the one or two of acrylic acid and methacrylic acid；Chain-transferring agent is mercaptopropionic acid, in thioacetic acid, methylpropene sodium sulfonate
One kind.
4. the anti-chamotte mould polycarboxylate water-reducer of high water reduction according to claim 1, which is characterized in that the reducing agent is nothing
One of aqueous ferrous sulfate, sodium hypophosphite and vitamin C are a variety of, and the oxidant is in hydrogen peroxide and ammonium persulfate
It is a kind of.
5. the anti-chamotte mould polycarboxylate water-reducer of high water reduction according to claim 1, which is characterized in that the quality of the liquid alkaline
Percent concentration is 32%.
6. the anti-chamotte mould polycarboxylate water-reducer of high water reduction according to claim 1, which is characterized in that the function monomer is
What blocks one or both of amidophosphoric acid ester for ethylene glycol diacrylate, N,N methylene bis acrylamide.
7. the preparation method of the anti-chamotte mould polycarboxylate water-reducer of high water reduction according to claim 1, which is characterized in that including with
Lower step:
(1) first part's water and polyether monomer are added in reaction kettle, stir into clear solution as bottom material；
(2) the A material of unsaturated monomer, chain-transferring agent, function monomer and second part water composition is spare, by reducing agent and third
The B material of part water composition is spare；
(3) bottom material is added in oxidant, stirred evenly, while A material and B material is added dropwise；
(4) after reaction, it is cooled to room temperature, liquid feeding alkali adjustment pH value to 5-8, addition Part IV water to required solid content,
Up to high water reduction and with the polycarboxylate water-reducer of anti-mud property.
8. preparation method according to claim 7, which is characterized in that stirred in step (1) and control temperature at 10-20 DEG C
Range.
9. preparation method according to claim 7, which is characterized in that temperature model during A material and B material is added dropwise in step (3)
System is contained at 15-40 DEG C.
10. preparation method according to claim 7, which is characterized in that A expects time for adding 0.5-3h, B material in step (3)
Time for adding 0.5-3.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338903.3A CN110028632A (en) | 2019-04-25 | 2019-04-25 | Anti- chamotte mould polycarboxylate water-reducer of high water reduction and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338903.3A CN110028632A (en) | 2019-04-25 | 2019-04-25 | Anti- chamotte mould polycarboxylate water-reducer of high water reduction and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110028632A true CN110028632A (en) | 2019-07-19 |
Family
ID=67240184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910338903.3A Pending CN110028632A (en) | 2019-04-25 | 2019-04-25 | Anti- chamotte mould polycarboxylate water-reducer of high water reduction and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110028632A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111019061A (en) * | 2019-12-13 | 2020-04-17 | 上海东大化学有限公司 | Polycarboxylate superplasticizer, high-stone-powder concrete and preparation method thereof |
| CN111019064A (en) * | 2019-12-26 | 2020-04-17 | 河北铁园科技发展有限公司 | Polycarboxylate superplasticizer and preparation method thereof |
| CN111087552A (en) * | 2019-12-22 | 2020-05-01 | 同济大学 | Synthetic method of polycarboxylic acid water reducer with high water reducing rate and mud resistance |
| CN111607039A (en) * | 2019-09-11 | 2020-09-01 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Slow-release high slump loss resistant polycarboxylic acid concrete water reducer and preparation method thereof |
| CN114057956A (en) * | 2021-12-07 | 2022-02-18 | 中建西部建设新材料科技有限公司 | Water-reducing slump-retaining comprehensive polycarboxylic acid water reducer and preparation method thereof |
| CN114195421A (en) * | 2020-09-17 | 2022-03-18 | 江苏尼高科技有限公司 | Preparation method of polycarboxylic acid admixture for machine-made sand concrete |
| CN115466363A (en) * | 2022-10-31 | 2022-12-13 | 中建材中岩科技有限公司 | Polycarboxylate superplasticizer prepared at ultralow temperature and preparation method thereof |
| CN115745459A (en) * | 2022-12-05 | 2023-03-07 | 中国建筑第八工程局有限公司 | Slurry-extracting anti-mud water reducer, preparation method and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110687A (en) * | 2015-07-30 | 2015-12-02 | 厦门路桥翔通建材科技有限公司 | Mud resisting and slump retaining type polycarboxylic acids water reducer and preparation method thereof |
| CN106366254A (en) * | 2016-08-29 | 2017-02-01 | 青神鑫统领建材有限公司 | Ethylene glycol vinyl ether polyethenoxy ether based acrylic acid copolymer, and preparation method and application thereof |
| CN107602762A (en) * | 2017-09-29 | 2018-01-19 | 济南大学 | For one kind with N, N methylene-bisacrylamides are micro- cross-linked polycarboxylic's high efficiency water reducing agent of cross-linking monomer and preparation method thereof |
| CN107698715A (en) * | 2017-07-06 | 2018-02-16 | 徐州巨龙新材料科技有限公司 | A kind of anti-mud polycarboxylate water-reducer |
-
2019
- 2019-04-25 CN CN201910338903.3A patent/CN110028632A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110687A (en) * | 2015-07-30 | 2015-12-02 | 厦门路桥翔通建材科技有限公司 | Mud resisting and slump retaining type polycarboxylic acids water reducer and preparation method thereof |
| CN106366254A (en) * | 2016-08-29 | 2017-02-01 | 青神鑫统领建材有限公司 | Ethylene glycol vinyl ether polyethenoxy ether based acrylic acid copolymer, and preparation method and application thereof |
| CN107698715A (en) * | 2017-07-06 | 2018-02-16 | 徐州巨龙新材料科技有限公司 | A kind of anti-mud polycarboxylate water-reducer |
| CN107602762A (en) * | 2017-09-29 | 2018-01-19 | 济南大学 | For one kind with N, N methylene-bisacrylamides are micro- cross-linked polycarboxylic's high efficiency water reducing agent of cross-linking monomer and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 徐春红等: "抗泥型聚羧酸减水剂的合成及性能研究", 《广东化工》 * |
| 混凝土外加剂及其应用技术论坛编: "《聚羧酸系高性能减水剂及其应用技术新进展-2019》", 31 March 2019, 北京理工大学出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111607039A (en) * | 2019-09-11 | 2020-09-01 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Slow-release high slump loss resistant polycarboxylic acid concrete water reducer and preparation method thereof |
| CN111019061A (en) * | 2019-12-13 | 2020-04-17 | 上海东大化学有限公司 | Polycarboxylate superplasticizer, high-stone-powder concrete and preparation method thereof |
| CN111087552A (en) * | 2019-12-22 | 2020-05-01 | 同济大学 | Synthetic method of polycarboxylic acid water reducer with high water reducing rate and mud resistance |
| CN111019064A (en) * | 2019-12-26 | 2020-04-17 | 河北铁园科技发展有限公司 | Polycarboxylate superplasticizer and preparation method thereof |
| CN114195421A (en) * | 2020-09-17 | 2022-03-18 | 江苏尼高科技有限公司 | Preparation method of polycarboxylic acid admixture for machine-made sand concrete |
| CN114195421B (en) * | 2020-09-17 | 2023-08-29 | 江苏尼高科技有限公司 | Preparation method of polycarboxylic acid additive for machine-made sand concrete |
| CN114057956A (en) * | 2021-12-07 | 2022-02-18 | 中建西部建设新材料科技有限公司 | Water-reducing slump-retaining comprehensive polycarboxylic acid water reducer and preparation method thereof |
| CN115466363A (en) * | 2022-10-31 | 2022-12-13 | 中建材中岩科技有限公司 | Polycarboxylate superplasticizer prepared at ultralow temperature and preparation method thereof |
| CN115745459A (en) * | 2022-12-05 | 2023-03-07 | 中国建筑第八工程局有限公司 | Slurry-extracting anti-mud water reducer, preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110028632A (en) | Anti- chamotte mould polycarboxylate water-reducer of high water reduction and preparation method thereof | |
| CN105110687B (en) | A kind of anti-mud collapse protective poly-carboxylic acid water reducing agent and preparation method thereof | |
| CN102849978B (en) | Sustained-release polycarboxylic high-performance water reducing agent and preparation method thereof | |
| CN105924592B (en) | Viscosity-reducing polycarboxylic acid water reducer and preparation method thereof | |
| CN104030595B (en) | Compound concrete admixture with early strength and water reduction functions, and preparation method and application thereof | |
| CN107652404B (en) | A kind of room temperature synthesis polyester polyether polycarboxylate water-reducer and preparation method thereof | |
| CN102515616B (en) | Composite slump-loss-resistant polycarboxylic acid water reducing agent and preparation method thereof | |
| CN104371073A (en) | Normal-temperature preparation method of slow-release polycarboxylate superplasticizer | |
| CN114195950B (en) | Method for preparing polycarboxylic acid slump retaining agent by six-carbon polyether and polycarboxylic acid slump retaining agent | |
| CN105254819A (en) | Preparation method of normal-temperature early-strength polycarboxylate superplasticizer | |
| CN109776021A (en) | A kind of low entraining type clear-water concrete additive and preparation method thereof | |
| CN110003405A (en) | Comprehensive high-performance polycarboxylic acids diminishing | |
| CN111548459A (en) | Preparation method of high slump loss resistant polycarboxylate superplasticizer | |
| CN107151294A (en) | Early-strength polycarboxylate superplasticizer and its preparation method and application | |
| CN106519137A (en) | Cross-star-shaped slow-release slump-retaining type polycarboxylic-acid water-reducing agent and preparation method thereof | |
| CN108276533A (en) | A kind of high ecad polycarboxylate water-reducer and preparation method thereof | |
| CN104371074A (en) | Low-temperature high-concentration polycarboxylate superplasticizer and preparation method thereof | |
| CN106317343A (en) | Water-reducing agent for polycarboxylate concrete and preparation and application thereof | |
| CN112608420B (en) | Preparation method of air-entraining type ester polycarboxylate superplasticizer | |
| CN109265622A (en) | A kind of no heat source high-performance controlled-release polycarboxylic acid water reducing agent and preparation method thereof | |
| CN106916292B (en) | A kind of polyoxyalkyl ether and preparation method thereof, by its resulting polycarboxylate water-reducer and preparation method | |
| CN106117454B (en) | A kind of muting sensitive sense polycarboxylate water-reducer and preparation method thereof | |
| CN107759742B (en) | A kind of polycarboxylate water-reducer and preparation method thereof and application method | |
| CN110698609A (en) | High-performance polycarboxylic acid water reducing agent synthesized at normal temperature, preparation method and application thereof | |
| CN110643003B (en) | Preparation method of retarding type ester polycarboxylate superplasticizer |
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: 20190719 |