CN104529222B - A kind of retardation setting type cement grinding aid and preparation method thereof - Google Patents
A kind of retardation setting type cement grinding aid and preparation method thereof Download PDFInfo
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- CN104529222B CN104529222B CN201410803354.XA CN201410803354A CN104529222B CN 104529222 B CN104529222 B CN 104529222B CN 201410803354 A CN201410803354 A CN 201410803354A CN 104529222 B CN104529222 B CN 104529222B
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Abstract
The invention discloses a kind of retardation setting type cement grinding aid and preparation method thereof, it is characterized in that: be that water mixing forms by modified diethanolamine mother solution, 1%～the sodium sulfate of the glycerol of 10%, 5%～10% that mass percent is 20%～30% and surplus；The preparation method of described modified diethanolamine mother solution is: weigh diethanolamine 21.1～25 mass parts, epoxychloropropane 9.2 mass parts, sodium hydrate aqueous solution 10～12 mass parts of 40%, diethanolamine is added in reaction vessel, epoxychloropropane and sodium hydrate aqueous solution being added dropwise in reaction vessel and stir, controlling reaction temperature is 40～50 DEG C；After dripping, then react 1.0～2 hours；Product evaporation is removed water therein, takes supernatant liquid and be prepared modified diethanolamine mother solution.It is respond well that retardation setting type cement grinding aid of the present invention is easily adsorbed in cement particle surface, grinding aid and slow setting, can be effectively improved the early anaphase intensity of cement.
Description
Technical field
The invention belongs to the additive of cement, relate to a kind of retardation setting type cement grinding aid and preparation method thereof.
Retardation setting type cement grinding aid of the present invention is particularly well-suited under hot climate the concrete of construction, large volume coagulation
Soil and need to park for a long time or the cement concrete of long-distance transportation.
Background technology
Retarded cement grinding aid is a kind of existing grind-aiding effect, can postpone again outside the cement of cement setting time
Add agent；It is mainly used under hot climate concrete, the mass concrete of construction and needs to stop for a long time
Put or in the cement concrete of long-distance transportation.Retarded cement grinding aid can improve the grinding of clinker
Efficiency, optimizes cement granules grating, improves strength of cement；The setting time of concrete can be postponed, make
Fresh concrete keeps plasticity, convenient construction in a long time；Owing to inhibiting hydration heat speed,
Reduce the thermal discharge of concrete coagulation early stage, be therefore particularly suitable for mass concrete engineering, it is possible to
The phenomenon preventing temperature in early days uneven and to ftracture；Concrete long-distance transportation and hot climate can also be solved
The problem of lower construction.The chemical composition of existing retarded cement grinding aid mainly has: molasses, sucrose, low point
Son amount cellulose and its derivates, hydroxy carboxylic acid (salt) and inorganic salt etc..Complicated, too much adds
Adding inorganic salt to improve reinforced effects, effect is unstable.Glucide absorption dispersion effect in cement
The best, it is difficult to play good grinding-aid effect.And existing synthetic technology, generally needs to use heating
Supercharging equipment, relatively costly.
Summary of the invention
The purpose of the present invention is intended to overcome deficiency of the prior art, it is provided that a kind of preparation technology is simple, slow
Solidifying effect is substantially and the retardation setting type cement grinding aid with excellent grinding aid potentiation and preparation method thereof.
Present disclosure is: a kind of retardation setting type cement grinding aid, it is characterized in that: by mass percent be
The modified diethanolamine mother solution of 20%～30%, the glycerol of 1%～10%, the sodium sulfate of 5%～10%, and
Surplus is water mixing composition；
The preparation method of described modified diethanolamine mother solution is: weigh diethanolamine 21.1～25 mass parts,
Epoxychloropropane 9.2 mass parts, mass percent concentration are the sodium hydrate aqueous solution 10～12 of 40%
Mass parts, adds in the reaction vessel (such as there-necked flask) of band agitating device, by ring by diethanolamine
Oxygen chloropropane adds in constant pressure addition pipe, is added by sodium hydrate aqueous solution in another constant pressure addition pipe,
Open two constant pressure addition pipes simultaneously, epoxychloropropane and sodium hydrate aqueous solution (slowly) are added dropwise to
In reaction vessel and stir, controlling reaction temperature is 40～50 DEG C；After dripping, then react 1.0～2
Hour；Product is poured into container and is placed in vacuum drying oven evaporation removing water therein, separate out
NaCl, takes supernatant liquid and is prepared modified diethanolamine mother solution；
In present disclosure: described product is poured into container be placed in vacuum drying oven evaporation remove
Remove water therein, preferably product is poured into container and is placed in vacuum drying oven, in temperature
70～90 DEG C, under conditions of pressure 40～80Pa evaporation remove water therein.
Another content of the present invention is: the preparation method of a kind of retardation setting type cement grinding aid, it is characterized in that step
Suddenly it is:
A, dispensing: weigh diethanolamine 21.1～25 mass parts, epoxychloropropane 9.2 mass parts, matter
Amount percent concentration is sodium hydrate aqueous solution 10～12 mass parts of 40%, diethanolamine is added band and stirs
Mix in the reaction vessel (such as there-necked flask) of device, epoxychloropropane added in constant pressure addition pipe,
Sodium hydrate aqueous solution is added in another constant pressure addition pipe, standby；
B, the modified diethanolamine mother solution of preparation: open two constant pressure addition pipes, by epoxychloropropane simultaneously
Be added dropwise in reaction vessel with sodium hydrate aqueous solution (slowly) and stir, control reaction temperature be 40～
50℃；After dripping, then react 1.0～2 hours；Product is poured into container be placed in vacuum and do
In dry case, evaporation removes water therein, separates out NaCl, takes supernatant liquid and be prepared modified diethanolamine
Mother solution；
C, prepare retardation setting type cement grinding aid: be the modified diethanolamine of 20%～30% by mass percentage
Mother solution, the glycerol of 1%～10%, the sodium sulfate of 5%～10%, and surplus are that water takes each component raw material；
By modification diethanolamine mother solution, glycerol, sodium sulfate and water mix homogeneously, i.e. prepare retardation setting type cement and help
Grinding agent.
In another content of the present invention: described in step b, product is poured into container and is placed in vacuum and does
In dry case, evaporation removes water therein, preferably pours product into container and is placed in vacuum drying oven
In, under conditions of temperature 70～90 DEG C, pressure 40～80Pa, evaporation removes water therein.
Compared with prior art, the present invention has features and a beneficial effect:
(1) using the present invention, the preparation process of retarded cement grinding aid is without any heating pressurization and takes out
Vacuum equipment, can react at normal temperatures and pressures, and synthesis cycle is short, and operation is simple, feasible
Property high, reaction rate is fast, and synthesis yield is high, and end-product needs not move through any separation or overanxious process；
(2) retarded cement grinding aid that the present invention provides, with modified diethanolamine as mother solution, modified
After diethanolamine be little molecular polyhydroxyl material [(OHCH2CH2)4N2(CH2)2CH (OH)], easily form hydrogen
Key, is conducive to absorption at cement particle surface；This molecular structure polarity is big, it is possible to preferably balance is each
The superfluous valency on material particles surface of planting is good for, and promotes molecule infiltration in crackle, thus is effectively improved thing
The fragility of material, weakens the reunion in mechanical milling process, sticks with paste mill phenomenon, it is possible to play optimization grain composition,
Improve the effect of strength of cement；During when volume is 0.05% and identical with matched group holding ratio of mud,
28-day colloidal mortar compression strength of cement can improve 4.1Mpa；Functional groups due to modified diethanolamine
Point is many, easily adsorbs at cement particle surface, forms adsorbed film, therefore can effectively delay cement
Aquation, postpones setting time, and extends along with the increase of volume setting time；When volume only 0.05%
Time, so that it may make final setting time than comparison group leader more than 300min；
(3) using the retarded cement grinding aid that the present invention provides, compounding have a certain amount of glycerol, mesh
Be utilize the commissure effect forming hydrogen bond between polyhydroxy substance, improve the energy of adsorption of grinding aid
Power；The purpose of compounding sodium sulfate is to regulate the intermiscibility of grinding aid, and sodium sulfate has certain increasing
Pretend use；The appropriate incorporation of glycerol and sodium sulfate also acts the effect reducing product cost；
(4) retardation setting type cement grinding aid of the present invention has the advantage that slow setting: grinding aid of the present invention divides
Son is polyhydroxy substance, is easily formed hydrogen bond in cement particle surface absorption film-forming, thus delays hydrated cementitious；
Grinding aid: modified diethanolamine molecule polarity is big, absorption can preferably balance each on clinker surface
The superfluous valency on material particles surface of planting is good for, and promotes molecule infiltration in crackle, thus is effectively improved thing
The fragility of material, weakens the reunion in mechanical milling process, sticks with paste mill phenomenon；Strengthen: add grinding aid of the present invention
After, cement bulky grain content reduces, and specific surface area increases, and grain composition is optimized, thus serves
Improve the effect of strength of cement；Therefore, after mixing slow setting grinding aid of the present invention, ore deposit can be properly increased
The consumption of polymer blends material, beneficially energy-conserving profit waste；
(5) the retardation setting type grinding aid that the present invention provides also has the advantage that diminishing: fill this slow setting
The cement of grinding aid, normal consistency water requirement is less than matched group, and mortar fluidity is more than matched group, coagulation
Soil workability is better than matched group, it is simple to practice of construction；Delay heat release: thermal discharge is low in early days, it is to avoid water
The internal intensification of cement concrete is too fast, and temperature inequality causes the phenomenon of cracking, is particularly well-suited to large volume coagulation
Construct under geotechnique's journey and hot environment；
(6) product preparation process of the present invention is simple, and operation is easy, easily operates, practical.
Detailed description of the invention
The invention will be further described for example given below plan, but is not to be construed as the present invention
The restriction of protection domain, the present invention is made by person skilled in art according to the content of the invention described above
Some nonessential improvement and adjustment, still fall within protection scope of the present invention.
Described in embodiment 1～6, percentage ratio is mass percent.
Embodiment 1 (numbering DE-1):
A kind of retardation setting type cement grinding aid, consists of: the modified diethanolamine mother solution of 20%, the third the three of 8%
Alcohol, the sodium sulfate of 5%, the water of 67%, total amount 100%.
The preparation process of this retardation setting type cement grinding aid has following steps:
A, weigh 21.1g diethanolamine, 9.2g epoxychloropropane, diethanolamine is added band stirring dress
In the there-necked flask put, epoxychloropropane adds in constant pressure addition pipe standby；Weigh the NaOH of 10g 40%
Aqueous solution, adds in another constant pressure addition pipe, opens two constant pressure addition pipes simultaneously, is slowly added dropwise also
Stirring, controls reaction temperature；After dropping completely, then react 1.5 hours；
B, the product of step a is poured into beaker it is placed in vacuum drying oven, evaporate therein
Moisture content, separates out NaCl, takes the supernatant and i.e. obtains modified diethanolamine mother solution；
The modified diethanolamine mother solution of c, by mass percentage 20%, the glycerol of 8%, the sodium sulfate of 5%,
The water of 67%, takes modified diethanolamine mother solution, glycerol, sodium sulfate and water respectively and carries out compounding mixing,
I.e. prepare retardation setting type grinding aid.
Embodiment 2～6:
The proportioning of according to the form below 1, the modified diethanolamine mother solution of regulation, glycerol, sodium sulfate and the consumption of water,
Prepare five kinds of retardation setting type grinding aids of embodiment numbering DE-2～DE-6:
The proportioning raw materials of table 1 embodiment 1～6
| Numbering | Modified diethanolamine mother solution % | Glycerol % | Sodium sulfate % | Water % |
| DE-1 | 20 | 8 | 5 | 67 |
| DE-2 | 22 | 8 | 5 | 65 |
| DE-3 | 24 | 4 | 7 | 65 |
| DE-4 | 26 | 4 | 7 | 63 |
| DE-5 | 28 | 2 | 9 | 61 |
| DE-6 | 30 | 2 | 9 | 59 |
The slow setting grinding aid obtaining embodiment 1～6 (numbering DE-1～DE-6) carries out little mill test.
Test water mud grog and Gypsum Fibrosum are all from Sichuan cement plant, its chemical composition and quality hundred
Proportion by subtraction content see table 2 (total amounts 100%, remaining mass percentage content is loss on ignition):
Table 2 grog and Gypsum Fibrosum chemical composition
| Composition | Loss on ignition | SiO2 | Al2O3 | Fe2O3 | CaO | MgO | SO3 |
| Grog % | 0.71 | 19.04 | 5.62 | 3.39 | 63.23 | 1.92 | 0.90 |
| Gypsum Fibrosum % | 8.65 | 1.70 | 0.30 | 0.20 | 38.41 | 0.80 | 48.63 |
With jaw crusher, grog and the Gypsum Fibrosum that mass ratio is 95:5 is crushed to below 5mm, weighs
5kg raw material, uniformly drops in the slow setting grinding aid weighed on raw material, and then raw material is poured into φ 500mm
× 500mm tests in little mill, grinding 25min, discharging 5min.Grinding aid volume is set to 0.05%,
And matched group is set.
With reference to the cement to producing of the regulation in GB/T17671-1999 " Test method for strength of hydraulic cement mortar "
Carry out strength test." water quality standard denseness water consumption, setting time, stable according to GB/T1346-2011
Property the method for inspection " regulation carry out measuring consumptive use of water normal consistence and setting time.Use Malvern
Mastersizer 2000 laser particle analyzer measures cement granularity.
Testing result such as table 3, table 4 and table 5:
Table 3 cement setting time testing result
| Slow setting grinding aid is numbered | Consumptive use of water normal consistence % | Presetting period min | Final setting time min |
| 0 | 25.6 | 107 | 172 |
| DE-1 | 25.5 | 440 | 515 |
| DE-2 | 25.5 | 450 | 526 |
| DE-3 | 25.4 | 433 | 561 |
| DE-4 | 25.3 | 452 | 540 |
| DE-5 | 25.2 | 465 | 545 |
| DE-6 | 25.0 | 447 | 510 |
Table 4 cement granularity testing result
Table 5 cement mortar testing result
Knowable to table 3, table 4 and table 5, the retardation setting type grinding aid that the present invention provides, have the advantage that
(1) slow setting: after mixing slow setting grinding aid of the present invention, cement setting time is obviously prolonged；Early hydration
Heat release is slow, it is adaptable to use under hot environment；For mass concrete engineering, it is possible to prevent in early days
The too fast phenomenon causing concrete cracking of hydration heat；(2) grinding aid: laser particle size measurement result shows,
Slow setting grinding aid of the present invention can effectively reduce bulky grain content, optimizes grain composition；(3) strengthen: from
Table 5 it can be seen that 3 days of cement and the 28 days the highest amplification of rupture strength are respectively 21.1%, 17.6%,
3 days and the 28 days the highest amplification of comprcssive strength are respectively 9.3%, 8.5%.Therefore, carry in the incorporation present invention
After the retardation setting type grinding aid of confession, the consumption of mineral admixture, beneficially energy-conserving profit waste can be properly increased.
Embodiment 7:
A kind of retardation setting type cement grinding aid, by the modified diethanolamine mother solution that mass percent is 20%, 1%
Glycerol, the sodium sulfate of 5%, and surplus 74% be water mixing composition；
The preparation method of described modified diethanolamine mother solution is: weigh diethanolamine 21.1 mass parts, ring
Oxygen chloropropane 9.2 mass parts, mass percent concentration are sodium hydrate aqueous solution 10 mass parts of 40%,
Diethanolamine is added in the reaction vessel (such as there-necked flask) of band agitating device, by epoxychloropropane
Add in constant pressure addition pipe, sodium hydrate aqueous solution is added in another constant pressure addition pipe, open simultaneously
Two constant pressure addition pipes, are added dropwise to reaction vessel by epoxychloropropane and sodium hydrate aqueous solution (slowly)
In and stir, control reaction temperature be 40 DEG C；After dripping, then react 1.0 hours；By product
Pour container into and be placed in vacuum drying oven evaporation removing water therein, separate out NaCl, take supernatant liquid i.e.
For prepared modified diethanolamine mother solution.
Embodiment 8:
A kind of retardation setting type cement grinding aid, by the modified diethanolamine mother solution that mass percent is 30%, 10%
Glycerol, the sodium sulfate of 10%, and surplus 50% be water mixing composition；
The preparation method of described modified diethanolamine mother solution is: weigh diethanolamine 25 mass parts, epoxy
Chloropropane 9.2 mass parts, mass percent concentration are sodium hydrate aqueous solution 12 mass parts of 40%, will
Diethanolamine adds in the reaction vessel (such as there-necked flask) of band agitating device, is added by epoxychloropropane
Enter in constant pressure addition pipe, sodium hydrate aqueous solution is added in another constant pressure addition pipe, open two simultaneously
Individual constant pressure addition pipe, is added dropwise to epoxychloropropane and sodium hydrate aqueous solution (slowly) in reaction vessel
And stir, controlling reaction temperature is 50 DEG C；After dripping, then react 2 hours；Product is poured into
Container is placed in vacuum drying oven evaporation and removes water therein, separates out NaCl, takes supernatant liquid and be system
The modified diethanolamine mother solution obtained.
Embodiment 9:
A kind of retardation setting type cement grinding aid, by the modified diethanolamine mother solution that mass percent is 25%, 6%
Glycerol, the sodium sulfate of 8%, and surplus 61% be water mixing composition；
The preparation method of described modified diethanolamine mother solution is: weigh diethanolamine 22 mass parts, epoxy
Chloropropane 9.2 mass parts, mass percent concentration are sodium hydrate aqueous solution 11 mass parts of 40%, will
Diethanolamine adds in the reaction vessel (such as there-necked flask) of band agitating device, is added by epoxychloropropane
Enter in constant pressure addition pipe, sodium hydrate aqueous solution is added in another constant pressure addition pipe, open two simultaneously
Individual constant pressure addition pipe, is added dropwise to epoxychloropropane and sodium hydrate aqueous solution (slowly) in reaction vessel
And stir, controlling reaction temperature is 45 DEG C；After dripping, then react 1.5 hours；Product is fallen
Enter container and be placed in vacuum drying oven evaporation removing water therein, separate out NaCl, take supernatant liquid and be
The modified diethanolamine mother solution prepared.
Embodiment 10～16:
A kind of retardation setting type cement grinding aid, female by the modified diethanolamine that mass percent is 20%～30%
Liquid, the glycerol of 1%～10%, the sodium sulfate of 5%～10%, and surplus are water mixing composition；
In each embodiment, the concrete mass percent consumption of each component raw material see table:
The preparation method of described modified diethanolamine mother solution is: weigh diethanolamine 21.1～25 mass parts,
Epoxychloropropane 9.2 mass parts, mass percent concentration are the sodium hydrate aqueous solution 10～12 of 40%
Mass parts, adds in the reaction vessel (such as there-necked flask) of band agitating device, by ring by diethanolamine
Oxygen chloropropane adds in constant pressure addition pipe, is added by sodium hydrate aqueous solution in another constant pressure addition pipe,
Open two constant pressure addition pipes simultaneously, epoxychloropropane and sodium hydrate aqueous solution (slowly) are added dropwise to
In reaction vessel and stir, controlling reaction temperature is 40～50 DEG C；After dripping, then react 1.0～2
Hour；Product is poured into container and is placed in vacuum drying oven evaporation removing water therein, separate out
NaCl, takes supernatant liquid and is prepared modified diethanolamine mother solution.
In each embodiment, concrete mass parts (unit: gram) consumption of each component raw material see table:
Embodiment 17:
A kind of preparation method of retardation setting type cement grinding aid, step is:
A, dispensing: weigh diethanolamine 21.1 mass parts, epoxychloropropane 9.2 mass parts, quality hundred
Proportion by subtraction concentration is sodium hydrate aqueous solution 10.2 mass parts of 40%, and diethanolamine adds band agitating device
Reaction vessel (such as there-necked flask) in, epoxychloropropane is added in constant pressure addition pipe, by hydrogen-oxygen
Change sodium water solution and add in another constant pressure addition pipe, standby；
B, the modified diethanolamine mother solution of preparation: open two constant pressure addition pipes, by epoxychloropropane simultaneously
Be added dropwise in reaction vessel with sodium hydrate aqueous solution (slowly) and stir, control reaction temperature be 40～
50℃；After dripping, then react 1.5 hours；Pour product into container and be placed in vacuum drying oven
Middle evaporation removes water therein, separates out NaCl, takes supernatant liquid and be prepared modified diethanolamine mother solution；
C, prepare retardation setting type cement grinding aid: be by mass percentage 25% modified diethanolamine mother solution,
The glycerol of 5%, the sodium sulfate of 7% and surplus 63% take each component raw material for water；By modification diethanol
Amine mother solution, glycerol, sodium sulfate and water mix homogeneously, i.e. prepare retardation setting type cement grinding aid.
Embodiment 18:
A kind of preparation method of retardation setting type cement grinding aid, step is:
A, dispensing: weigh diethanolamine 21.1～25 mass parts, epoxychloropropane 9.2 mass parts, matter
Amount percent concentration is sodium hydrate aqueous solution 10～12 mass parts of 40%, diethanolamine is added band and stirs
Mix in the reaction vessel (such as there-necked flask) of device, epoxychloropropane added in constant pressure addition pipe,
Sodium hydrate aqueous solution is added in another constant pressure addition pipe, standby；
The concrete mass parts consumption of each component raw material is arbitrary in embodiment 7～16, omits；
B, the modified diethanolamine mother solution of preparation: open two constant pressure addition pipes, by epoxychloropropane simultaneously
Be added dropwise in reaction vessel with sodium hydrate aqueous solution (slowly) and stir, control reaction temperature be 40～
50℃；After dripping, then react 1.0～2 hours；Product is poured into container be placed in vacuum and do
In dry case, evaporation removes water therein, separates out NaCl, takes supernatant liquid and be prepared modified diethanolamine
Mother solution；
C, prepare retardation setting type cement grinding aid: be the modified diethanolamine of 20%～30% by mass percentage
Mother solution, the glycerol of 1%～10%, the sodium sulfate of 5%～10%, and surplus are that water takes each component raw material；
By modification diethanolamine mother solution, glycerol, sodium sulfate and water mix homogeneously, i.e. prepare retardation setting type cement and help
Grinding agent；The concrete mass percent consumption of each component raw material is arbitrary in embodiment 7～16, omits.
In above-described embodiment 7～18: described container of product being poured into is placed in vacuum drying oven steaming
Send out and remove water therein, preferably product is poured into container and is placed in vacuum drying oven, in temperature
Spend 70～90 DEG C, under conditions of pressure 40～80Pa evaporation remove water therein.
In above-described embodiment: each raw material used is commercially available prod.
In above-described embodiment: in the percentage used, indicate the most especially, be quality (weight)
Percentage or well known to a person skilled in the art percentage；Described quality (weight) part can be all
Gram or kilogram.
In above-described embodiment: technological parameter (temperature, time, concentration etc.) and each component in each step are used
Numerical quantities etc. are scope, and any point is the most applicable.
The technology contents being not specifically delineated in present invention and above-described embodiment is compared with technology.
The invention is not restricted to above-described embodiment, described in present invention, all can implement and have described good effect
Really.
Claims (4)
1. a retardation setting type cement grinding aid, is characterized in that: by the modified diethanolamine mother solution that mass percent is 20%～30%, the glycerol of 1%～10%, the sodium sulfate of 5%～10%, and surplus be water mixing composition；
The preparation method of described modified diethanolamine mother solution is: weigh diethanolamine 21.1～25 mass parts, epoxychloropropane 9.2 mass parts, mass percent concentration be 40% sodium hydrate aqueous solution 10～12 mass parts, diethanolamine is added in the reaction vessel of band agitating device, epoxychloropropane is added in constant pressure addition pipe, sodium hydrate aqueous solution is added in another constant pressure addition pipe, open two constant pressure addition pipes simultaneously, epoxychloropropane and sodium hydrate aqueous solution being added dropwise in reaction vessel and stir, controlling reaction temperature is 40～50 DEG C；After dripping, then react 1.0～2 hours；Product is poured into container and is placed in vacuum drying oven evaporation removing water therein, take supernatant liquid and be prepared modified diethanolamine mother solution.
2. the retardation setting type cement grinding aid as described in claim 1, it is characterized in that: described container of product being poured into is placed in vacuum drying oven evaporation removing water therein, being product to be poured into container be placed in vacuum drying oven, under conditions of temperature 70～90 DEG C, pressure 40～80Pa, evaporation removes water therein.
3. a preparation method for retardation setting type cement grinding aid, is characterized in that step is:
A, dispensing: weigh diethanolamine 21.1～25 mass parts, epoxychloropropane 9.2 mass parts, mass percent concentration be 40% sodium hydrate aqueous solution 10～12 mass parts, diethanolamine is added in the reaction vessel of band agitating device, epoxychloropropane is added in constant pressure addition pipe, sodium hydrate aqueous solution is added in another constant pressure addition pipe, standby；
B, the modified diethanolamine mother solution of preparation: opening two constant pressure addition pipes simultaneously, epoxychloropropane and sodium hydrate aqueous solution be added dropwise in reaction vessel and stir, controlling reaction temperature is 40～50 DEG C；After dripping, then react 1.0～2 hours；Product is poured into container and is placed in vacuum drying oven evaporation removing water therein, take supernatant liquid and be prepared modified diethanolamine mother solution；
C, prepare retardation setting type cement grinding aid: be by mass percentage the modified diethanolamine mother solution of 20%～30%, the glycerol of 1%～10%, the sodium sulfate of 5%～10%, and surplus be that water takes each component raw material；By modification diethanolamine mother solution, glycerol, sodium sulfate and water mix homogeneously, i.e. prepare retardation setting type cement grinding aid.
4. the preparation method of retardation setting type cement grinding aid as described in claim 3, it is characterized in that: described in step b, product is poured into container and is placed in vacuum drying oven evaporation removing water therein, being product to be poured into container be placed in vacuum drying oven, under conditions of temperature 70～90 DEG C, pressure 40～80Pa, evaporation removes water therein.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2649483A (en) * | 1948-01-26 | 1953-08-18 | Dow Chemical Co | Mixed lower trailakanolamines |
| EP0978585A2 (en) * | 1998-08-07 | 2000-02-09 | Ipposha Oil Industries Co. Ltd. | Modifier of cellulose fibers and modification method of cellulose fibers |
| JP2002037838A (en) * | 2000-07-27 | 2002-02-06 | Sanyo Chem Ind Ltd | Polyol for production of polyurethane foam |
| CN102504246A (en) * | 2011-11-02 | 2012-06-20 | 中国石油集团渤海钻探工程有限公司 | Method for preparing polyepichlorohydrin-diethanol amine anti-collapse inhibitor in laboratory |
| CN102875794A (en) * | 2012-10-16 | 2013-01-16 | 山东蓝星东大化工有限责任公司 | Hard bubble polyether polyol and preparation method thereof |
-
2014
- 2014-12-22 CN CN201410803354.XA patent/CN104529222B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2649483A (en) * | 1948-01-26 | 1953-08-18 | Dow Chemical Co | Mixed lower trailakanolamines |
| EP0978585A2 (en) * | 1998-08-07 | 2000-02-09 | Ipposha Oil Industries Co. Ltd. | Modifier of cellulose fibers and modification method of cellulose fibers |
| JP2002037838A (en) * | 2000-07-27 | 2002-02-06 | Sanyo Chem Ind Ltd | Polyol for production of polyurethane foam |
| CN102504246A (en) * | 2011-11-02 | 2012-06-20 | 中国石油集团渤海钻探工程有限公司 | Method for preparing polyepichlorohydrin-diethanol amine anti-collapse inhibitor in laboratory |
| CN102875794A (en) * | 2012-10-16 | 2013-01-16 | 山东蓝星东大化工有限责任公司 | Hard bubble polyether polyol and preparation method thereof |
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| CN104529222A (en) | 2015-04-22 |
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Inventor after: Niu Yunhui Inventor after: Lu Zhongyuan Inventor after: Song Kaiping Inventor after: Jiang Yong Inventor before: Jiang Yong Inventor before: Lu Zhongyuan Inventor before: Tao Yuanyuan Inventor before: Song Kaiping Inventor before: Niu Yunhui |
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