CN106186785A - A kind of cement agent prescription - Google Patents
A kind of cement agent prescription Download PDFInfo
- Publication number
- CN106186785A CN106186785A CN201610497812.0A CN201610497812A CN106186785A CN 106186785 A CN106186785 A CN 106186785A CN 201610497812 A CN201610497812 A CN 201610497812A CN 106186785 A CN106186785 A CN 106186785A
- Authority
- CN
- China
- Prior art keywords
- cement
- maleic anhydride
- agent prescription
- triethanolamine
- grinding
- 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
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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
- 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
-
- 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
- C04B2103/52—Grinding aids; Additives added during grinding
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of cement agent prescription, relate to cement auxiliary material production technical field, be made up of following ingredients: allyl polyglycol, maleic anhydride, triethanolamine, Ammonium persulfate., preparation method specifically comprise the following steps that S1, synthesis minor comonomer；S2, free-radical polymerized；S3, neutralization.Cement agent prescription disclosed in this invention, the grinding-aid effect ground for little pulverizing is obvious, 45,80 μm screen over-size decreasing value are big, the anti-folding of 3d, comprcssive strength are high, the anti-folding of 28d, comprcssive strength height respectively, specific surface area improves 1 times, and effectively addition ratio uses little molecule grinding aid low, without to cement harmful components, good to cement adaptability, it is ensured that the quality of cement products, can effectively realize multiple organo-functional group synergism in cement, reduce production cost, improve product stability, strengthen grinding-aid effect.
Description
Technical field
The present invention relates to cement auxiliary material production technical field, particularly relate to a kind of cement agent prescription.
Background technology
At present China is the staple market of World Water cement grinding aids products application, the exploitation of novel concrete grinding aid product and
Applying in urgent need of strengthening, its research emphasis has moved towards macromolecule synthesising technology.Synthesis Mcromolecular grinding aid, combines each functional group
In high molecular backbone structure, the less molecule of its grinding-aid effect and compounding grinding aid have great-leap-forward to promote.Because the height of synthesis
The most effective volume of molecule grinding aid is low, and grinding aid potentiation is obvious, has a suitable volume scope, and its volume fluctuates to water
The impact of mud performance is little, can more preferably ensure that the safety produced is carried out, simultaneously Mcromolecular grinding aid low cost, performance is good, combine
Close high efficiency, have broad application prospects.Polycarboxylic acid salt's cement additive is exactly a kind of wide variety of high molecular polymerization
Thing.
Summary of the invention
The purpose of the present invention is contemplated to overcome the defect of conventional cement grinding aid formula, devises a kind of cement grinding aid
Formula.
Solve the technical problem that required by the present invention and can be achieved through the following technical solutions:
A kind of cement agent prescription, is made up of following ingredients: allyl polyglycol, maleic anhydride, triethanolamine, mistake
Ammonium sulfate.
Specifically comprising the following steps that of preparation method
S1, synthesis minor comonomer: excess maleic anhydride can occur esterification, by maleic anhydride and three second with triethanolamine
After hydramine is according to 2: 1 mixed in molar ratio, it is placed in 70 DEG C of heating in water bath stirring 3h, obtains faint yellow clarified mixture, this mixture
I.e. minor comonomer；
S2, free-radical polymerized: after being dissolved at 50～70 DEG C by polymeric monomer allyl polyglycol, to be equipped with agitator
Four-neck flask, and be sequentially added into deionized water, maleic anhydride, minor comonomer and initiator ammonium persulfate and be polymerized, control reaction
In uniform temperature, polyreaction 3～5h, it is incubated 0.5～1h；
S3, neutralization: after polyreaction, cooling, cool to less than 40 DEG C, polymeric solution adds triethanolamine molten
Liquid is neutralized to pH=7.0 ± 0.5, obtains the transparent mucus of brown color, is described cement grinding aid.
Cement agent prescription disclosed in this invention, the grinding-aid effect ground for little pulverizing is obvious, 45,80 μm screen over-sizes
Decreasing value is big, and the anti-folding of 3d, comprcssive strength are high, the anti-folding of 28d, comprcssive strength height respectively, and specific surface area improves 1 times, and effectively volume
Than using, little molecule grinding aid is low, without to cement harmful components, good to cement adaptability, it is ensured that the matter of cement products
Amount, can effectively realize multiple organo-functional group synergism in cement, reduces production cost, improves product stable
Property, strengthen grinding-aid effect.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, enter below
One step illustrates the present invention.
A kind of cement agent prescription, is made up of following ingredients: allyl polyglycol, maleic anhydride, triethanolamine, mistake
Ammonium sulfate.
Specifically comprising the following steps that of preparation method
S1, synthesis minor comonomer: excess maleic anhydride can occur esterification, by maleic anhydride and three second with triethanolamine
After hydramine is according to 2: 1 mixed in molar ratio, it is placed in 70 DEG C of heating in water bath stirring 3h, obtains faint yellow clarified mixture, this mixture
I.e. minor comonomer；
S2, free-radical polymerized: after being dissolved at 50～70 DEG C by polymeric monomer allyl polyglycol, to be equipped with agitator
Four-neck flask, and be sequentially added into deionized water, maleic anhydride, minor comonomer and initiator ammonium persulfate and be polymerized, control reaction
In uniform temperature, polyreaction 3～5h, it is incubated 0.5～1h；
S3, neutralization: after polyreaction, cooling, cool to less than 40 DEG C, polymeric solution adds triethanolamine molten
Liquid is neutralized to pH=7.0 ± 0.5, obtains the transparent mucus of brown color, is described cement grinding aid.
Cement agent prescription disclosed in this invention, the grinding-aid effect ground for little pulverizing is obvious, 45,80 μm screen over-sizes
Decreasing value is big, and the anti-folding of 3d, comprcssive strength are high, the anti-folding of 28d, comprcssive strength height respectively, and specific surface area improves 1 times, and effectively volume
Than using, little molecule grinding aid is low, without to cement harmful components, good to cement adaptability, it is ensured that the matter of cement products
Amount, can effectively realize multiple organo-functional group synergism in cement, reduces production cost, improves product stable
Property, strengthen grinding-aid effect.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (2)
1. a cement agent prescription, it is characterised in that be made up of following ingredients: allyl polyglycol, maleic anhydride, three
Ethanolamine, Ammonium persulfate..
Cement agent prescription the most according to claim 1, it is characterised in that specifically comprising the following steps that of preparation method
S1, synthesis minor comonomer: excess maleic anhydride can occur esterification, by maleic anhydride and triethanolamine with triethanolamine
After 2: 1 mixed in molar ratio, being placed in 70 DEG C of heating in water bath stirring 3h, obtain faint yellow clarified mixture, this mixture is the least
Monomer；
S2, free-radical polymerized: after being dissolved by polymeric monomer allyl polyglycol, to be equipped with four necks of agitator at 50～70 DEG C
Flask, and be sequentially added into deionized water, maleic anhydride, minor comonomer and initiator ammonium persulfate and be polymerized, control reaction one
Fixed temperature, polyreaction 3～5h, it is incubated 0.5～1h；
S3, neutralization: after polyreaction, cooling, cool to less than 40 DEG C, polymeric solution adds triethanolamine solution and enters
Row is neutralized to pH=7.0 ± 0.5, obtains the transparent mucus of brown color, is described cement grinding aid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610497812.0A CN106186785A (en) | 2016-06-28 | 2016-06-28 | A kind of cement agent prescription |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610497812.0A CN106186785A (en) | 2016-06-28 | 2016-06-28 | A kind of cement agent prescription |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106186785A true CN106186785A (en) | 2016-12-07 |
Family
ID=57463269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610497812.0A Pending CN106186785A (en) | 2016-06-28 | 2016-06-28 | A kind of cement agent prescription |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106186785A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584091A (en) * | 2012-01-19 | 2012-07-18 | 山西大学 | Polycarboxylate cement grinding aid and preparation method thereof |
| CN102838313A (en) * | 2011-06-24 | 2012-12-26 | 魏中原 | Polycarboxylic acid series high molecular synthetic cement grinding additive and preparation method thereof |
| CN103980439A (en) * | 2014-04-15 | 2014-08-13 | 湖州华仑助剂科技有限公司 | Polycarboxylic acid cement grinding aid production method |
-
2016
- 2016-06-28 CN CN201610497812.0A patent/CN106186785A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838313A (en) * | 2011-06-24 | 2012-12-26 | 魏中原 | Polycarboxylic acid series high molecular synthetic cement grinding additive and preparation method thereof |
| CN102584091A (en) * | 2012-01-19 | 2012-07-18 | 山西大学 | Polycarboxylate cement grinding aid and preparation method thereof |
| CN103980439A (en) * | 2014-04-15 | 2014-08-13 | 湖州华仑助剂科技有限公司 | Polycarboxylic acid cement grinding aid production method |
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| C06 | 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 |
Application publication date: 20161207 |
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| RJ01 | Rejection of invention patent application after publication |