CN108675666A - A kind of high-performance biology material list body polycarboxylate water-reducer and preparation method thereof - Google Patents
A kind of high-performance biology material list body polycarboxylate water-reducer and preparation method thereof Download PDFInfo
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- CN108675666A CN108675666A CN201810739624.3A CN201810739624A CN108675666A CN 108675666 A CN108675666 A CN 108675666A CN 201810739624 A CN201810739624 A CN 201810739624A CN 108675666 A CN108675666 A CN 108675666A
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- water
- parts
- list body
- reducer
- polycarboxylate water
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Classifications
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- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
-
- 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 high-performance biology material list body polycarboxylate water-reducers, it includes bottom material, A material and B material, wherein in parts by mass, bottom material includes：1500~2000 parts of polyoxyethylene ether polymeric monomer, 320~380 parts of Plant Powder, 20~30 parts of oxidant, 1000~1200 parts of water；A expects：15~20 parts of intermediate transfer chain, 1~3 part of catalyst, 720~780 parts of water；B expects：200~250 parts of unsaturated sulfonic acid base intermediate, 450~500 parts of water.The polycarboxylate water-reducer is polymerized using polyoxyethylene ether polymeric monomer with unsaturated sulfonic acid base intermediate, and biomass Plant Powder is added, constitute polycarboxylate water-reducer of new generation, the water-reducing agent water-reducing effect protrudes, and volume variation is smaller on the workabilities such as concrete workability and later strength influence, overcomes sensitive defect of the concrete to water-reducing agent volume.
Description
Technical field
The present invention relates to a kind of high-performance biology material list body polycarboxylate water-reducers and preparation method thereof, belong to concrete diminishing
Agent field.
Background technology
Polycarboxylate water-reducer (PolycarboxylateSuperplasticizer) is a kind of high-performance water reducing agent, is water
A kind of cement dispersants in cement concrete utilization.It is widely used in the engineerings such as highway, bridge, dam, tunnel, skyscraper.
Polycarboxylic acid series high efficiency water reducing agent product can be divided into two major classes according to the difference of its backbone structure：One kind is with acrylic acid or methyl
Acrylic acid is main chain, is grafted the polyethers of different side chain lengths.Another kind of is using maleic anhydride as main link branch difference side chain lengths
Polyethers.Based on this, a series of high-performance water reducing agent product of different characteristics has been derived.But polycarboxylate water-reducer volume is difficult
With control, use environment is larger to the influential effect of water-reducing agent, and volume controls the improper workability that can not only influence concrete,
Late strength of concrete can also be had some impact on simultaneously.
Invention content
Goal of the invention：It is a kind of using plant the technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide
Polyether-type high-performance water reducing agent prepared by object powder, water-reducing effect is notable, and moderate dosage is wider, avoids concrete to diminishing
The sensibility of agent volume.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is as follows：
A kind of high-performance biology material list body polycarboxylate water-reducer, it includes bottom material, A material and B material, wherein in parts by mass,
Bottom material includes：1500~2000 parts of polyoxyethylene ether polymeric monomer, 320~380 parts of Plant Powder, oxidant 20~30
Part, 1000~1200 parts of water；
A expects：15~20 parts of intermediate transfer chain, 1~3 part of catalyst, 720~780 parts of water；
B expects：200~250 parts of unsaturated sulfonic acid base intermediate, 450~500 parts of water.
Wherein, the molecular weight of the polyoxyethylene ether polymeric monomer is 1000~1500.
The oxidant is one or more of potassium peroxydisulfate, hydrogen peroxide, potassium permanganate and potassium bichromate
Combination.
The intermediate transfer chain is methylpropene sodium sulfonate.
The catalyst is one or both of ferrous sulfate, iron ammonium sulfate, titanium trichloride, zinc chloride and copper chloride
Above combination.
The present invention also provides the preparation methods of above-mentioned high-performance biology material list body polycarboxylate water-reducer, include the following steps：
Step 1：Water is added in a kettle, puts into polyoxyethylene ether polymeric monomer and Plant Powder, stirring is so that polyoxyethylene
The dissolution rate of ether polymeric monomer and Plant Powder is more than 80%, and oxidant is then added, continues 15~25min of stirring and obtains bottom material；
Step 2：Intermediate transfer chain, catalyst and water are uniformly mixed and obtain A material, by unsaturated sulfonic acid base intermediate and
Water, which is uniformly mixed, obtains B material；
Step 3：A material are added dropwise into step 1 bottom material, and are dripped in 2~2.5h, A material start dropwise addition 8~
Start that B material are added dropwise after 10min, and 8~10min drips B material before A material add；
Step 4：After A gobs add, system has certain Wen Sheng, and a certain amount of water is filled into when temperature is raised to highest,
It discharges after 25~30min of stirring.
Wherein, the quality of moisturizing is the 1/3 of bottom material quality in step 4.
Advantageous effect：
Polycarboxylate water-reducer of the present invention is polymerized using polyoxyethylene ether polymeric monomer with unsaturated sulfonic acid base intermediate, and
Biomass Plant Powder is added, constitutes polycarboxylate water-reducer of new generation, which protrudes, and volume variation is to coagulation
The workabilities such as native workability and later strength influence are smaller, overcome sensitive defect of the concrete to water-reducing agent volume.
Specific implementation mode
According to following embodiments, the present invention may be better understood.
Embodiment 1
Step 1：1000 parts of water, 2000 parts of input polyoxyethylene ether polymeric monomer and Plant Powder 350 are added in a kettle
Part, stirring is so that the dissolution rate of polyoxyethylene ether polymeric monomer and Plant Powder is more than 80%, and then 20 parts of potassium peroxydisulfate of addition, continues
15~25min of stirring obtains bottom material；
Step 2：750 parts of 15 parts of methylpropene sodium sulfonate, 1 part of ferrous sulfate and water are uniformly mixed and obtain A material, it will not
450 parts of 200 parts of saturation sulfonic group intermediate and water, which are uniformly mixed, obtains B material；
Step 3：A material are added dropwise into step 1 bottom material, start that B material are added dropwise after A expects to start that 8min is added dropwise, and in A material add
Complete preceding 8min drips B material, and A material drip in 2~2.5h；
Step 4：After A gobs add, system has certain Wen Sheng, and bottom material quality 1/3 is filled into when temperature is raised to highest
Water, stir 25~30min after discharge.
Embodiment 2
Step 1：1200 parts of water, 2000 parts of input polyoxyethylene ether polymeric monomer and Plant Powder 380 are added in a kettle
Part, stirring is so that the dissolution rate of polyoxyethylene ether polymeric monomer and Plant Powder is more than 80%, and then 30 parts of potassium peroxydisulfate of addition, continues
15~25min of stirring obtains bottom material；
Step 2：780 parts of 20 parts of methylpropene sodium sulfonate, 3 parts of ferrous sulfate and water are uniformly mixed and obtain A material, it will not
500 parts of 250 parts of saturation sulfonic group intermediate and water, which are uniformly mixed, obtains B material；
Step 3：A material are added dropwise into step 1 bottom material, start that B material are added dropwise after A material start that 10min is added dropwise, and in A expect
10min drips B material before adding, and A material drip in 2~2.5h；
Step 4：After A gobs add, system has certain Wen Sheng, and bottom material quality 1/3 is filled into when temperature is raised to highest
Water, stir 25~30min after discharge.
Embodiment 3
Step 1：1000 parts of water, 1500 parts of input polyoxyethylene ether polymeric monomer and Plant Powder 320 are added in a kettle
Part, stirring is so that the dissolution rate of polyoxyethylene ether polymeric monomer and Plant Powder is more than 80%, and then 20 parts of potassium peroxydisulfate of addition, continues
15~25min of stirring obtains bottom material；
Step 2：720 parts of 16 parts of methylpropene sodium sulfonate, 1 part of ferrous sulfate and water are uniformly mixed and obtain A material, it will not
480 parts of 210 parts of saturation sulfonic group intermediate and water, which are uniformly mixed, obtains B material；
Step 3：A material are added dropwise into step 1 bottom material, start that B material are added dropwise after A expects to start that 8min is added dropwise, and in A material add
Complete preceding 8min drips B material, and A material drip in 2~2.5h；
Step 4：After A gobs add, system has certain Wen Sheng, and bottom material quality 1/3 is filled into when temperature is raised to highest
Water, stir 25~30min after discharge.
Embodiment 4
Step 1：1025 parts of water, 1700 parts of input polyoxyethylene ether polymeric monomer and Plant Powder 354 are added in a kettle
Part, stirring is so that the dissolution rate of polyoxyethylene ether polymeric monomer and Plant Powder is more than 80%, and then 25 parts of potassium peroxydisulfate of addition, continues
15~25min of stirring obtains bottom material；
Step 2：752 parts of 16 parts of methylpropene sodium sulfonate, 2 parts of ferrous sulfate and water are uniformly mixed and obtain A material, it will not
466 parts of 223 parts of saturation sulfonic group intermediate and water, which are uniformly mixed, obtains B material；
Step 3：A material are added dropwise into step 1 bottom material, start that B material are added dropwise after A expects to start that 8min is added dropwise, and in A material add
Complete preceding 8min drips B material, and A material drip in 2~2.5h；
Step 4：After A gobs add, system has certain Wen Sheng, and bottom material quality 1/3 is filled into when temperature is raised to highest
Water, stir 25~30min after discharge.
Comparative example 1
Step 1：1025 parts of water is added in a kettle, 1700 parts of input polyoxyethylene ether polymeric monomer, stirring is so that polyoxy
The dissolution rate of vinethene polymeric monomer is more than 80%, and 25 parts of potassium peroxydisulfate is then added, continues 15~25min of stirring and obtains bottom material；
Step 2：752 parts of 16 parts of methylpropene sodium sulfonate, 2 parts of ferrous sulfate and water are uniformly mixed and obtain A material, it will not
466 parts of 223 parts of saturation sulfonic group intermediate and water, which are uniformly mixed, obtains B material；
Step 3：A material are added dropwise into step 1 bottom material, start that B material are added dropwise after A expects to start that 8min is added dropwise, and in A material add
Complete preceding 8min drips B material, and A material drip in 2~2.5h；
Step 4：After A gobs add, system has certain Wen Sheng, and bottom material quality 1/3 is filled into when temperature is raised to highest
Water, stir 25~30min after discharge.
Cement paste experiment is carried out to the water-reducing agent that Examples 1 to 4 and comparative example 1 are prepared and concrete performance is real
It tests, experimental result is shown in Table 1.As can be seen from the table, the water-reducing agent being prepared all has excellent pulp flowage
Spend holding capacity and slump holding capacity, and Examples 1 to 4 increases the water-reducing agent ratio of Plant Powder and is not added with Plant Powder
1 function and effect of comparative example more preferably.
Table 1
| Parameter | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 |
| Initial flow degree (mm) | 189 | 186 | 183 | 174 | 192 |
| Fluidity (mm) after 1h | 183 | 187 | 192 | 194 | 172 |
| Initial slump degree (mm) | 202 | 205 | 208 | 206 | 208 |
| Slump (mm) after 1h | 189 | 191 | 195 | 195 | 183 |
Further, water-reducing agent prepared by embodiment 4 and comparative example 1 is chosen, concrete stirring is added to different addition quantity
In material, 28 days strength characters are measured, the results are shown in Table 2.As can be seen from the table, when comparative example volume increases to 0.15% pair
Concrete strength is affected, and is added in the embodiment 4 of Plant Powder, and volume is from 0.02% to 0.15% to concrete strength
It will not impact, therefore the moderate dosage range increase of water-reducing agent after Plant Powder is added, concrete is quick to water-reducing agent volume
Perception reduces.
Table 2
| Volume (wt%) | Embodiment 4 | Comparative example 1 |
| 0.10 | 36.7MPa | 35.7MPa |
| 0.25 | 38.8MPa | 38.3MPa |
| 0.50 | 40.5MPa | 38.5MPa |
| 1.20 | 40.3MPa | 34.2MPa |
The present invention provides a kind of thinkings and method of high-performance biology material list body polycarboxylate water-reducer, implement the skill
There are many method and approach of art scheme, the above is only a preferred embodiment of the present invention, it is noted that this technology is led
For the those of ordinary skill in domain, various improvements and modifications may be made without departing from the principle of the present invention, these
Improvements and modifications also should be regarded as protection scope of the present invention.The available prior art of each component part being not known in the present embodiment
It is realized.
Claims (7)
1. a kind of high-performance biology material list body polycarboxylate water-reducer, which is characterized in that it includes bottom material, A material and B material, wherein is pressed
Mass parts meter,
Bottom material includes：1500~2000 parts of polyoxyethylene ether polymeric monomer, 320~380 parts of Plant Powder, 20~30 parts of oxidant, water
1000~1200 parts；
A expects：15~20 parts of intermediate transfer chain, 1~3 part of catalyst, 720~780 parts of water；
B expects：200~250 parts of unsaturated sulfonic acid base intermediate, 450~500 parts of water.
2. high-performance biology material list body polycarboxylate water-reducer according to claim 1, which is characterized in that the polyoxyethylene
The molecular weight of ether polymeric monomer is 1000~1500.
3. high-performance biology material list body polycarboxylate water-reducer according to claim 1, which is characterized in that the oxidant is
The combination of one or more of potassium peroxydisulfate, hydrogen peroxide, potassium permanganate and potassium bichromate.
4. high-performance biology material list body polycarboxylate water-reducer according to claim 1, which is characterized in that the intermediate transfer
Chain is methylpropene sodium sulfonate.
5. high-performance biology material list body polycarboxylate water-reducer according to claim 1, which is characterized in that the catalyst is
The combination of one or more of ferrous sulfate, iron ammonium sulfate, titanium trichloride, zinc chloride and copper chloride.
6. the preparation method of high-performance biology material list body polycarboxylate water-reducer described in claim 1, which is characterized in that including as follows
Step：
Step 1：Water is added in a kettle, puts into polyoxyethylene ether polymeric monomer and Plant Powder, stirring is so that polyoxyethylene ether is big
The dissolution rate of monomer and Plant Powder is more than 80%, and oxidant is then added, continues 15~25min of stirring and obtains bottom material；
Step 2：Intermediate transfer chain, catalyst and water are uniformly mixed and obtain A material, unsaturated sulfonic acid base intermediate and water are mixed
It closes and uniformly obtains B material；
Step 3：A material are added dropwise into step 1 bottom material, and are dripped in 2~2.5h, after A material start 8~10min of dropwise addition
Start that B material are added dropwise, and 8~10min drips B material before A material add；
Step 4：After A gobs add, system has certain Wen Sheng, and a certain amount of water is filled into when temperature is raised to highest, stirring
It discharges after 25~30min.
7. the preparation method of high-performance biology material list body polycarboxylate water-reducer according to claim 6, which is characterized in that step
The quality of moisturizing is the 1/3 of bottom material quality in rapid four.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372459A (en) * | 2010-08-24 | 2012-03-14 | 上海台界化工有限公司 | Method for enhancing workability of concrete |
| CN102875052A (en) * | 2012-10-23 | 2013-01-16 | 天津市建筑科学研究院有限公司 | Compound admixture for heat curing-free concrete in winter construction |
| CN107892736A (en) * | 2017-11-15 | 2018-04-10 | 河北合众建材有限公司 | The method that compound oxidizing reduction initiating system produces high performance water reducing agent of polyocarboxy acid |
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2018
- 2018-07-06 CN CN201810739624.3A patent/CN108675666A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372459A (en) * | 2010-08-24 | 2012-03-14 | 上海台界化工有限公司 | Method for enhancing workability of concrete |
| CN102875052A (en) * | 2012-10-23 | 2013-01-16 | 天津市建筑科学研究院有限公司 | Compound admixture for heat curing-free concrete in winter construction |
| CN107892736A (en) * | 2017-11-15 | 2018-04-10 | 河北合众建材有限公司 | The method that compound oxidizing reduction initiating system produces high performance water reducing agent of polyocarboxy acid |
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Application publication date: 20181019 |
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