CN103739791B - A kind of thickening type water reducer and synthetic method thereof - Google Patents
A kind of thickening type water reducer and synthetic method thereof Download PDFInfo
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- CN103739791B CN103739791B CN201310748993.6A CN201310748993A CN103739791B CN 103739791 B CN103739791 B CN 103739791B CN 201310748993 A CN201310748993 A CN 201310748993A CN 103739791 B CN103739791 B CN 103739791B
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- water reducer
- type water
- concrete
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 24
- 230000008719 thickening Effects 0.000 title claims abstract description 11
- 238000010189 synthetic method Methods 0.000 title claims description 7
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 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 10
- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 claims abstract description 6
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229940102253 isopropanolamine Drugs 0.000 claims abstract description 6
- 229920001427 mPEG Polymers 0.000 claims abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 5
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims abstract description 5
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims abstract description 5
- 235000019394 potassium persulphate Nutrition 0.000 claims abstract description 5
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 3
- 125000005395 methacrylic acid group Chemical group 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000000376 reactant Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 238000007865 diluting Methods 0.000 claims description 3
- 230000032050 esterification Effects 0.000 claims description 3
- 238000005886 esterification reaction Methods 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 229920005646 polycarboxylate Polymers 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Polyethers (AREA)
Abstract
The invention discloses a kind of thickening type water reducer, made by a methoxy poly (ethylene glycol), b diethylene glycol (DEG) or triethylene glycol or both mixtures, the acid of c acrylic or methacrylic or both mixture, d ammonium persulfate or potassium peroxydisulfate or both mixtures, e hydroquinones, f isopropanolamine and the g concentrated sulfuric acid, the mol ratio of its raw material consumption: a:b:c:f=1:0.05～0.1:3～4:0.02～0.03, e consumption is total weight of material 0.05～0.08%, g consumption is total weight of material 0.05～0.1%, and d consumption is total weight of material 0.5～0.8%. Water reducer of the present invention has the glutinous poly-performance of the concrete of enhancing, makes concrete have better water-retaining property, improves concrete workability, can also ensure concrete normally condensing and strength development simultaneously.
Description
Technical field
The present invention relates to a kind of building water reducer, specifically a kind of thickening type water reducer and synthetic method thereof.
Background technology
Water reducer is to meet under the prerequisite that concrete specifies that denseness requires, reducing unit consumption of water necessary in concrete, improving a kind of additive of concrete strength and workability. Evaluation concrete quality is good and bad, whether a good and bad key character is concrete aperture size and the porosity after sclerosis to water resistance. The ratio of mud of concrete mix has determined barrier performance and the packing of xoncrete structure, has determined concrete pore size and porosity. In the time that the ratio of mud is increased to 0.7 from 0.4, because the concrete infiltration coefficient of the increase along with the ratio of mud increases thereupon, therefore concrete infiltration coefficient can reach more than 100 times. And water reducer can reduce the attraction between cement granules greatly, it is by means of polar adsorption, cement is had to strong peptizaiton, can discharge the water in solidifying flco, effectively destroy and hinder intergranular flocculation reaction, greatly reduction mixing water amount, concrete intensity and workability are improved, significantly reduce aperture and total porosity, changed the capillary porosity structure after concrete hardening, finally improved anti-permeability performance and the packing of xoncrete structure. Water reducer, except above-mentioned effect, also has following several respects effect: improve frost resistance, be conducive to winter construction; Increase durability, avoid concrete building structures to leak; Reduce the shrinkage factor of concrete setting, increase resistance to chemical corrosion. For the needs of engineering, water reducer is divided into a variety of, early-strength water reducer, shrinkage type water reducer, thickening type water reducer, incremental type water reducer etc.
Summary of the invention
The object of this invention is to provide a kind of thickening type water reducer and synthetic method thereof.
Technical scheme of the present invention is achieved in that a kind of thickening type water reducer, is made up of following raw material: a methoxy poly (ethylene glycol)
B diethylene glycol (DEG) or triethylene glycol or both mixtures
The acid of c acrylic or methacrylic or both mixtures
D ammonium persulfate or potassium peroxydisulfate or both mixtures
E hydroquinones
F isopropanolamine
The g concentrated sulfuric acid,
The mol ratio of its raw material consumption: a:b:c:f=1:0.05～0.1:3～4:0.02～0.03, e consumption is total weight of material 0.05～0.08%, and g consumption is total weight of material 0.05～0.1%, and d consumption is total weight of material 0.5～0.8%.
The synthetic method of thickening type water reducer, 1) by a, b, c adds reactor successively, and stir and heat up, after material in reactor mixes, by e, f, g adds successively, and continues to be warming up to 110-120 degree reaction 8 hours, obtains esterification products; 2) temperature of charge is down to 60 degree, and adds suitable quantity of water diluting reaction thing, keep reactant 60 to spend; D is dissolved in suitable quantity of water, as dripping material A, in reactor, drips equably, point within 4 hours, add, add rear continuation and stir 1 hour, with appropriate liquid caustic soda neutralization reactant to PH be 6-7.
In described step 1) course of reaction, constantly remove moisture in reactor by vacuumizing.
The concentration of described dropping liquid is 5～10% mass fractions.
Beneficial effect of the present invention is: water reducer of the present invention has the glutinous poly-performance of the concrete of enhancing, makes concrete have better water-retaining property, improves concrete workability, can also ensure concrete normally condensing and strength development simultaneously.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further explained to explanation.
Embodiment 1
Raw material composition and proportioning thereof:
A methoxy poly (ethylene glycol)
B diethylene glycol (DEG)
C acrylic acid
D ammonium persulfate
E hydroquinones
F isopropanolamine
The g concentrated sulfuric acid,
The mol ratio of its raw material consumption: a:b:c:f=1:0.05:3:0.02, e consumption is total weight of material 0.05%, and g consumption is total weight of material 0.05%, and d consumption is total weight of material 0.5%.
Synthetic method, 1) by a, b, c adds reactor successively, stir and heat up, after material in reactor mixes, by e, f, g adds successively, and continues to be warming up to 110-120 degree reaction 8 hours, obtains esterification products, in course of reaction, constantly removes moisture in reactor by vacuumizing; 2) temperature of charge is down to 60 degree, and adds suitable quantity of water diluting reaction thing, keep reactant 60 to spend; D is dissolved in suitable quantity of water, as dripping material A, in reactor, drips equably, point within 4 hours, add, add rear continuation and stir 1 hour, with appropriate liquid caustic soda neutralization reactant to PH be 6-7.
Embodiment 2
Raw material composition and proportioning thereof:
A methoxy poly (ethylene glycol)
B triethylene glycol
C methacrylic acid
D potassium peroxydisulfate
E hydroquinones
F isopropanolamine
The g concentrated sulfuric acid,
The mol ratio of its raw material consumption: a:b:c:f=1:0.1:4:0.03, e consumption is total weight of material 0.08%, and g consumption is total weight of material 0.1%, and d consumption is total weight of material 0.8%.
Embodiment 3
The composition of raw material and proportioning thereof are:
A methoxy poly (ethylene glycol)
B diethylene glycol (DEG) and triethylene glycol
C acrylic acid and methacrylic acid
D ammonium persulfate and potassium peroxydisulfate
E hydroquinones
F isopropanolamine
The g concentrated sulfuric acid,
The mol ratio of its raw material consumption: a:b:c:f=1:0.07:2.5:0.25, e consumption is total weight of material 0.06%, and g consumption is total weight of material 0.08%, and d consumption is total weight of material 0.6%.
Synthetic 40% polycarboxylate water-reducer as stated above, sees the following form with match ratio contrast testing result to this sintetics and market polycarboxylate water-reducer.
| Product | Volume % | Bleeding rate compares % | Pressure bleeding ratio % | Divergence mm | Air content % |
| Common polycarboxylate water-reducer | 0.4 | 18 | 63 | 585 | 3.1 |
| Embodiment 1 | 0.4 | 0 | 18 | 575 | 3.3 |
| Embodiment 2 | 0.4 | 0 | 23 | 580 | 3.4 |
| Embodiment 3 | 0.4 | 0 | 25 | 580 | 3.5 |
The above; it is only preferably detailed description of the invention of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (3)
1. a thickening type water reducer, is characterized in that, is made up of following raw material:
A methoxy poly (ethylene glycol)
B diethylene glycol (DEG) or triethylene glycol or both mixtures
The acid of c acrylic or methacrylic or both mixtures
D ammonium persulfate or potassium peroxydisulfate or both mixtures
E hydroquinones
F isopropanolamine
The g concentrated sulfuric acid,
The mol ratio of its raw material consumption: a:b:c:f=1:0.05～0.1:3～4:0.02～0.03, e consumption is total weight of material 0.05～0.08%, and g consumption is total weight of material 0.05～0.1%, and d consumption is total weight of material 0.5～0.8%;
Its synthetic method is: 1) by a, and b, c adds reactor successively, and stir and heat up, after material in reactor mixes, by e, f, g adds successively, and continues to be warming up to 110-120 degree reaction 8 hours, obtains esterification products; 2) temperature of charge is down to 60 degree, and adds suitable quantity of water diluting reaction thing, keep reactant 60 to spend; D is dissolved in suitable quantity of water, as dripping material A, in reactor, drips equably, point within 4 hours, add, add rear continuation and stir 1 hour, with appropriate liquid caustic soda neutralization reactant to pH be 6-7.
2. thickening type water reducer according to claim 1, is characterized in that, in described step 1) course of reaction, constantly removes moisture in reactor by vacuumizing.
3. thickening type water reducer according to claim 1 and 2, is characterized in that, the concentration of described dropping material A is 5～10% mass fractions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310748993.6A CN103739791B (en) | 2013-12-31 | 2013-12-31 | A kind of thickening type water reducer and synthetic method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310748993.6A CN103739791B (en) | 2013-12-31 | 2013-12-31 | A kind of thickening type water reducer and synthetic method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103739791A CN103739791A (en) | 2014-04-23 |
| CN103739791B true CN103739791B (en) | 2016-05-11 |
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| CN201310748993.6A Expired - Fee Related CN103739791B (en) | 2013-12-31 | 2013-12-31 | A kind of thickening type water reducer and synthetic method thereof |
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| CN109796149A (en) * | 2019-03-18 | 2019-05-24 | 云南富龙高速公路建设指挥部 | A kind of thickening type water-reducing agent and preparation method thereof for machine-made sand concrete |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041570A (en) * | 2007-04-27 | 2007-09-26 | 北京工业大学 | Preparation method of graft copolymerization carboxylate high-performance dehydragent |
| CN102101906A (en) * | 2010-12-31 | 2011-06-22 | 科之杰新材料(漳州)有限公司 | Method for preparing amide/imide type high-concentration polycarboxylic acid high-performance water reducer |
| CN102815882A (en) * | 2012-08-03 | 2012-12-12 | 山西科腾环保科技有限公司 | High-performance water reducer of polycarboxylic acid, and preparation method thereof |
| CN103450408A (en) * | 2013-09-16 | 2013-12-18 | 贵州科之杰新材料有限公司 | Ethers early strength type polycarboxylate water reducer and preparation method thereof |
| CN103450412A (en) * | 2013-09-16 | 2013-12-18 | 贵州科之杰新材料有限公司 | Preparation method of ester early-strength polycarboxylic acid water reducing agent |
-
2013
- 2013-12-31 CN CN201310748993.6A patent/CN103739791B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041570A (en) * | 2007-04-27 | 2007-09-26 | 北京工业大学 | Preparation method of graft copolymerization carboxylate high-performance dehydragent |
| CN102101906A (en) * | 2010-12-31 | 2011-06-22 | 科之杰新材料(漳州)有限公司 | Method for preparing amide/imide type high-concentration polycarboxylic acid high-performance water reducer |
| CN102815882A (en) * | 2012-08-03 | 2012-12-12 | 山西科腾环保科技有限公司 | High-performance water reducer of polycarboxylic acid, and preparation method thereof |
| CN103450408A (en) * | 2013-09-16 | 2013-12-18 | 贵州科之杰新材料有限公司 | Ethers early strength type polycarboxylate water reducer and preparation method thereof |
| CN103450412A (en) * | 2013-09-16 | 2013-12-18 | 贵州科之杰新材料有限公司 | Preparation method of ester early-strength polycarboxylic acid water reducing agent |
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| CN103739791A (en) | 2014-04-23 |
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Granted publication date: 20160511 |