CN103819624B - Phenylethene modified polysulfonate acids water reducer - Google Patents
Phenylethene modified polysulfonate acids water reducer Download PDFInfo
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- CN103819624B CN103819624B CN201410090121.XA CN201410090121A CN103819624B CN 103819624 B CN103819624 B CN 103819624B CN 201410090121 A CN201410090121 A CN 201410090121A CN 103819624 B CN103819624 B CN 103819624B
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Abstract
The invention discloses a kind of phenylethene modified polysulfonate acids water reducer, by the most aggregated for styrene sulfonation modification synthesis, this type of water reducer low cost, adaptable, water-reducing effect is good.Clean slurry flowing is without gradual loss, without excreting water phenomenon.The water-reducing rate of concrete typically can reach about 24%, higher than common aminosulfonic water-reducing agent.
Description
Technical field
The present invention relates to a kind of sulphonic acids water reducer, a kind of phenylethene modified polysulfonate acids water reducer.
Background technology
Development and extensive concrete mixing plant, concrete mixing and transporting car, concrete pump along with architectural engineering technology
That send that construction equipment applies is universal, has significantly promoted the development of concrete admixture technology.Modern concrete is towards high-performance, green
The direction changed is developed, and the requirement to water-reducing rate, slump retaining and the feature of environmental protection of concrete admixture is more and more higher.
Domestic development and production and the high efficiency water reducing agent being widely used, mainly have following according to the classification of its chemical composition
Several: modified lignosulfonate high-efficiency water reducing agent, naphthalene series high-efficiency water-reducing agent, melamine resin series high-efficiency water-reducing agent, sulfamic acid
Salt series high-efficiency water-reducing agent, polycarboxylate high-efficiency water reducing agent.The effect summarizing high efficiency water reducing agent has three below aspect: (1) is being protected
Hold the mixture ratio of mud constant in the case of, improve its service behaviour；(2) on the premise of keeping workability constant, incorporation subtracts
Water preparation can make concrete unit consumption of water reduce 5%-25%, improves concrete strength 5%-30%；(3) strong concrete is being kept
Spend constant on the premise of, use water reducer can reduce the 5%-20% of cement consumption.In a word, the effect of water reducer finally embodies
Which creating huge economic benefit and social benefit.
According to data, amido sulfoacid series high-efficiency water reducer has the high dispersion to cement particle, and water-reducing rate is high, and
There is the function of control slump loss；And cost is the highest, production technology is simple, is the most rising height
Effect water reducer.But, the water-reducing rate of aminosulfonic water-reducing agent generally also can only achieve 20% when volume 1.0%, and water-reducing rate is also
The highest, and there will be excreting water phenomenon.
Summary of the invention
Purpose in order to invent is to provide a kind of phenylethene modified sulphonic acids water reducer, by styrene sulfonation modification again through poly-
Synthesis water reducer molecule, this type of water reducer low cost, adaptable, water-reducing effect is good.
The technical scheme is that and be achieved in that: phenylethene modified polysulfonate acids water reducer, styrene sulfonation is changed
The most aggregated synthesis of property, reaction equation is:
Synthesize that water reducer is raw materials used is:
A metering system polyoxyethylenated alcohol
B styrene
C maleic anhydride
D oleum
E acrylic acid or methacrylic acid
F Ammonium persulfate. or potassium peroxydisulfate
G sodium hydroxide solution；
The mol ratio of described raw material is: a:b:c:d:e:g=1:2～2.5:2～2.5:3.5～4.5:1～1.5:5.5
～6.5, the consumption of f is the 0.5～1.0% of a, b, c, d and e gross weight.
The concrete synthesis step of water reducer is as follows: by b, and c, d are sequentially added into reactor, and stirring is warming up to 80-90 degree, stirring
It is incubated 4 hours.It is cooled to less than 40 degree, adds suitable quantity of water and add reactor with a, g is slowly added to reactor, control reactor
Interior temperature 60-70 degree, is dissolved in suitable quantity of water as dropping material 1 using e, f is dissolved in suitable quantity of water as dropping material 2, two kinds of dropping liquids with
Time uniformly drip in reactor, all added with 3 hours, and continue to keep 60-70 degree 1 hour, reaction terminates.
The optimum ratio of raw material is: a:b:c:d:e:g=1: 2: 2: 4:1:6.
The concentration of described dropping liquid 1 is 30～50% mass fraction.
The concentration of described dropping liquid 2 is 5～10% mass fraction.
The invention have the benefit that the phenylethene modified polysulfonate acids water reducer of the present invention, styrene sulfonation is modified
The most aggregated synthesis, this type of water reducer low cost, adaptable, water-reducing effect is good.Clean slurry flowing is without gradual loss, without bleeding
Phenomenon.The water-reducing rate of concrete typically can reach about 24%, higher than common aminosulfonic water-reducing agent.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further explained explanation.
Embodiment 1
Synthesize that water reducer is raw materials used is:
A metering system polyoxyethylenated alcohol
B styrene
C maleic anhydride
D oleum
E acrylic acid or methacrylic acid
F Ammonium persulfate. or potassium peroxydisulfate
G sodium hydroxide solution；
The mol ratio of described raw material is: the consumption of a:b:c:d:e:g=1:2.5:2.5:3.5:1.5:5.5, f be a,
The 0.8% of b, c, d and e gross weight.
The concrete synthesis step of water reducer is as follows: by b, and c, d are sequentially added into reactor, and stirring is warming up to 80-90 degree, stirring
It is incubated 4 hours.It is cooled to less than 40 degree, adds suitable quantity of water and add reactor with a, g is slowly added to reactor, control reactor
Interior temperature 60-70 degree, is dissolved in suitable quantity of water as dropping material 1 using e, f is dissolved in suitable quantity of water as dropping material 2, two kinds of dropping liquids with
Time uniformly drip in reactor, all added with 3 hours, and continue to keep 60-70 degree 1 hour, reaction terminates.
Embodiment 2
Synthesis step is with embodiment 1.And the mol ratio of described raw material is: a:b:c:d:e:g=1:2.3:2.3:4.5:
The consumption of 1.2:5.5, f is the 0.6% of a, b, c, d and e gross weight.
Embodiment 3
Synthesis step is with embodiment 1.And the mol ratio of described raw material is: a:b:c:d:e:g=1:2:2: 4:1:6, f
Consumption is a, b, c, d and e gross weight 1.0%.
The water reducer (solids content is 20%) of embodiment 1,2 and 3 is mixed in cement or concrete and measure cement paste
Fluidity and water-reducing rate, see table.
As seen from table, clean slurry flowing is without gradual loss, without excreting water phenomenon.It is left that the water-reducing rate of concrete typically can reach 24%
The right side, higher than common aminosulfonic water-reducing agent.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope of present disclosure, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (4)
- The most phenylethene modified polysulfonate acids water reducer, it is characterised in that raw materials used be:A metering system polyoxyethylenated alcoholB styreneC maleic anhydrideD oleumE acrylic acid or methacrylic acidF Ammonium persulfate. or potassium peroxydisulfateG sodium hydroxide solution；The mol ratio of described raw material is: a:b:c:d:e:g=1:2～2.5:2～2.5:3.5～4.5:1～1.5:5.5 ～6.5, the consumption of f is the 0.5～1.0% of a, b, c, d and e gross weight, and described synthetic method step is as follows: by b, c, d add successively Entering reactor, stirring is warming up to 80-90 degree, stirring insulation 4 hours, is cooled to less than 40 degree, adds suitable quantity of water and adds reaction with a Still, is slowly added to reactor by g, controls reactor temperature 60-70 degree, e is dissolved in suitable quantity of water as dropping material 1, is dissolved in by f Suitable quantity of water is as dropping material 2, and two kinds of dropping liquids uniformly drip in reactor simultaneously, all add with 3 hours, and continues to keep 60-70 degree 1 hour, reaction terminates.
- Phenylethene modified polysulfonate acids water reducer the most according to claim 1, it is characterised in that the mol ratio of described raw material For: a:b:c:d:e:g=1: 2: 2: 4:1:6.
- Phenylethene modified polysulfonate acids water reducer the most according to claim 1, it is characterised in that described dropping material 1 dense Degree is 30～50% mass fraction.
- Phenylethene modified polysulfonate acids water reducer the most according to claim 1, it is characterised in that described dropping material 2 dense Degree is 5～10% mass fraction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410090121.XA CN103819624B (en) | 2014-03-13 | 2014-03-13 | Phenylethene modified polysulfonate acids water reducer |
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| CN201410090121.XA CN103819624B (en) | 2014-03-13 | 2014-03-13 | Phenylethene modified polysulfonate acids water reducer |
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| CN103819624A CN103819624A (en) | 2014-05-28 |
| CN103819624B true CN103819624B (en) | 2016-12-07 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343642A (en) * | 2000-08-11 | 2002-04-10 | 株式会社日本触媒 | Cement dispersant agent and cement compsn. using same |
| CN1412145A (en) * | 2001-10-17 | 2003-04-23 | 株式会社日本触媒 | Cement dispersing agent, its mfg. method and cement composition using it |
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- 2014-03-13 CN CN201410090121.XA patent/CN103819624B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343642A (en) * | 2000-08-11 | 2002-04-10 | 株式会社日本触媒 | Cement dispersant agent and cement compsn. using same |
| CN1412145A (en) * | 2001-10-17 | 2003-04-23 | 株式会社日本触媒 | Cement dispersing agent, its mfg. method and cement composition using it |
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| CN103819624A (en) | 2014-05-28 |
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