CN105271880B - Cement grinding aid - Google Patents
Cement grinding aid Download PDFInfo
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- CN105271880B CN105271880B CN201510802875.8A CN201510802875A CN105271880B CN 105271880 B CN105271880 B CN 105271880B CN 201510802875 A CN201510802875 A CN 201510802875A CN 105271880 B CN105271880 B CN 105271880B
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Abstract
The invention discloses a kind of cement grinding aid, including by following parts by weight for the raw material of major constituent is prepared from：5 30 parts of modified triethanolamine, 5 20 parts of molasses, 14 parts of lignin derivative, 38 parts of chlorohydrocarbon, 60 80 parts of water.Beneficial effects of the present invention：Partially modified triethanolamine and chlorohydrocarbon act on forming quaternary ammonium salt, and so as to producing chlorion in the case of not adding villaumite in cement grinding aid, and chlorion can be accomplished to significantly increase the early epistasis energy of cement and grinding-aid effect.Simultaneously because quaternary ammonium salt has unstable property, therefore the quaternary ammonium salt for being formed in cement after construction can again be decomposed into triethanolamine and chlorohydrocarbon, and chlorohydrocarbon has effumability, it is possible to realizing after cement completes construction, alkyl chloride is volatilized, so as to be not in that chlorion causes the service life of reinforcement in concrete burn into influence concrete and the problem of durability.
Description
Technical field
The present invention relates to a kind of additive, more specifically, it relates to a kind of cement grinding aid.
Background technology
Cement grinding aid is a kind of chemical addition agent for improving cement grinding effect and performance, for the grinding of cement material
During, adding a small amount of grinding aid can significantly improve mill efficiency or reducing energy consumption, and be produced when significantly improving cement platform
Amount and all technical, and the performance of cement itself is not damaged.Used as a kind of chemical activator, grinding aid can improve cement
Distribution of particles simultaneously excites aquation power, so as to improve cement early strength and later strength.The energy consumption of China's cement industry production
The 80% of building materials industry energy consumption is accounted for, the 8.7% of national industrial production total energy consumption is accounted for, the application of cement grinding aid is to cement industry
The benefit that " energy-saving and emission-reduction " and the sustainable development of cement industry bring, considerably beyond the value of itself, it into
It is the indispensable auxiliary material of cement industry.
A kind of cement grinding aid is disclosed in documents CN201210265048.6, the cement grinding aid high material is in mill
Interior mobility, effectively reduces grinding machine and crosses grinding phenomenon, improve adhesive attraction that material pulls to abrasive body, liner plate, compartment and from
Body clustering phenomena.
But, it is necessary to use the salt of the chloride ion-containings such as sodium chloride and potassium chloride to increase grinding aid in documents
Effect, but the presence of chlorion easily causes reinforcement in concrete burn into and influences the service life and durability of concrete.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of cement grinding aid.The cement
Agent is not added with the salt of the chloride ion-containings such as sodium chloride and potassium chloride, can but reach more preferable grinding aid and enhancing effect.
To achieve the above object, the invention provides following technical scheme：
A kind of cement grinding aid, including by following parts by weight for the raw material of major constituent is prepared from：
Modified triethanolamine 5-30 parts
Molasses 5-20 parts
Lignin derivative 1-4 parts
Chlorohydrocarbon 3-8 parts
Water 60-80 parts.
Including being prepared from by the raw material that following parts by weight are major constituent：
Modified triethanolamine 5-20 parts
Molasses 5-15 parts
Lignin derivative 1-4 parts
Chlorohydrocarbon 3-6 parts
Water 60-80 parts.
The modified triethanolamine is by sad triethanolamine ester：Dilaurate triethanolamine ester=0-1:1-0 is constituted.
The molasses are from the one of which in beet molasses, cane molasses, glucose sugar molasses.
The lignin derivative is preferably sodium lignin sulfonate.
The chlorohydrocarbon is from the one of which or several in dichloromethane, 1,1- dichloroethanes, 1,2- dichloroethanes.
A kind of preparation method of modified triethanolamine, it is characterized in that：Comprise the following steps：
Step one：According to mol ratio, octanoic acid：Triethanolamine=1.4-1.6:1 is mixed, by octanoic acid and triethanolamine
Mixture and phenol solution are placed in round-bottomed flask, are depressurized, heating response, and reaction temperature is controlled at 130-140 DEG C, instead
8h is answered, the water of reaction generation is evaporated, residue is crude product；
Step 2：Gained is crude product after vacuum distillation, is dissolved in isooctane, sequentially with the NaOH aqueous solution and distillation
Water washing, to remove unreacted caprylic acid, corresponding solvent and triethanolamine, finally passes through rotary evaporation by solvent isooctane
Instrument evaporates to obtain final product；
Step 3：According to laurate：Triethanolamine=1.9-2.3:1 mol ratio ratio weighs bay on electronic balance
Acid and triethanolamine, first add laurate and to toluic acid in there-necked flask, and in the dropping funel of there-necked flask restocking one, constant speed is added dropwise
Triethanolamine, is dripped within half an hour, loads onto reflux condensing tube, and reaction temperature is controlled at 140 DEG C, is flowed back 0.5 hour, slightly cold
Afterwards, distilling apparatus is changed to, distillation reaction 11.5h, the water for evaporating generation is the crude product of reaction；
Step 4：Gained is crude product after distillation, sequentially with the aqueous solution and distillation water washing, then is solvent with dichloromethane
Dilaurate triethanolamine ester is obtained after silica gel column separating purification；
Step 5：The dilaurate triethanolamine ester that the sad triethanolamine ester and step 4 that step 2 is obtained are obtained by
It is sad triethanolamine ester according to weight ratio：Dilaurate triethanolamine ester=0-1:1-0 is well mixed.
A kind of preparation method of cement grinding aid, comprises the following steps：
I first pours into reactor 5-30 parts of modified triethanolamine, then 3-8 parts of chlorohydrocarbon is poured under stirring carries out
Mix, be heated to reflux 12h, cool down stand-by；
II is transferred in stirred tank the mixture that step I is obtained, add 5-20 parts of molasses, 1-4 parts of lignin derivative,
60-80 parts of water, discharges after stirring 1h and obtains final product.
There is following some effect by using above-mentioned technical proposal, the present invention：
1. partially modified triethanolamine and chlorohydrocarbon act on forming quaternary ammonium salt, so as in the case where villaumite is not added
Chlorion is produced in cement grinding aid, and chlorion can be accomplished to significantly increase the early epistasis energy of cement and grinding-aid effect.Together
When there is unstable property due to quaternary ammonium salt, therefore the quaternary ammonium salt formed in cement after construction can again be decomposed into three second
Hydramine and chlorohydrocarbon, and chlorohydrocarbon has effumability, it is possible to realize after cement completes construction, alkyl chloride volatilization, from
Without there is a problem of that chlorion causes the service life and durability of reinforcement in concrete burn into influence concrete；
2. the quaternary ammonium salt that modified triethanolamine and chlorohydrocarbon are formed has good anti-microbial property, can significantly increase water
The bactericidal effect of mud；
3. the quaternary ammonium salt that modified triethanolamine and chlorohydrocarbon are formed can significantly increase molasses, lignin derivative and
Solubility property of other cement additives in water, it is possible to when cement is constructed, increase molasses, lignin derivative and
Decentralization of other cement additives in cement；
4. modified triethanolamine be by triethanolamine from it is different Esterification and compounded, compared to three ethanol
Amine, modified triethanolamine has more preferable grinding aid and improves the effect of intensity；
5. lignin derivative can not only significantly surge the intensity of mud, while during can substantially reducing cement use
Water consumption.
Specific embodiment
Embodiment 1-5 is the preparation embodiment of modified triethanolamine.
Embodiment 1
Step one：According to mol ratio, octanoic acid：Triethanolamine=1.4:1 is mixed, by the mixing of octanoic acid and triethanolamine
Thing and phenol solution are placed in round-bottomed flask, are depressurized, heating response, and reaction temperature is controlled at 130 DEG C, react 8h, are steamed
Fall the water of reaction generation, residue is crude product；
Step 2：Gained is crude product after vacuum distillation, is dissolved in isooctane, sequentially with the NaOH aqueous solution and distillation
Water washing, to remove unreacted caprylic acid, corresponding solvent and triethanolamine, finally passes through rotary evaporation by solvent isooctane
Instrument evaporates to obtain final product；
Step 3：According to laurate：Triethanolamine=2.2:1 mol ratio ratio weighed on electronic balance laurate and
Triethanolamine, first adds laurate and to toluic acid in there-necked flask, and in the dropping funel of there-necked flask restocking one, constant speed is added dropwise three second
Hydramine, is dripped within half an hour, loads onto reflux condensing tube, and reaction temperature is controlled at 140 DEG C, is flowed back 0.5 hour, it is slightly cold after,
Distilling apparatus is changed to, distillation reaction 11.5h, the water for evaporating generation is the crude product of reaction；
Step 4：Gained is crude product after distillation, sequentially with the aqueous solution and distillation water washing, then is solvent with dichloromethane
Dilaurate triethanolamine ester is obtained after silica gel column separating purification；
Step 5：The dilaurate triethanolamine ester that the sad triethanolamine ester and step 4 that step 2 is obtained are obtained by
It is sad triethanolamine ester according to weight ratio：Dilaurate triethanolamine ester=0:1 is well mixed.
Embodiment 2
Step one：According to mol ratio, octanoic acid：Triethanolamine=1.6:1 is mixed, by the mixing of octanoic acid and triethanolamine
Thing and phenol solution are placed in round-bottomed flask, are depressurized, heating response, and reaction temperature is controlled at 135 DEG C, react 8h, are steamed
Fall the water of reaction generation, residue is crude product；
Step 2：Gained is crude product after vacuum distillation, is dissolved in isooctane, sequentially with the NaOH aqueous solution and distillation
Water washing, to remove unreacted caprylic acid, corresponding solvent and triethanolamine, finally passes through rotary evaporation by solvent isooctane
Instrument evaporates to obtain final product；
Step 3：According to laurate：Triethanolamine=2.1:1 mol ratio ratio weighed on electronic balance laurate and
Triethanolamine, first adds laurate and to toluic acid in there-necked flask, and in the dropping funel of there-necked flask restocking one, constant speed is added dropwise three second
Hydramine, is dripped within half an hour, loads onto reflux condensing tube, and reaction temperature is controlled at 140 DEG C, is flowed back 0.5 hour, it is slightly cold after,
Distilling apparatus is changed to, distillation reaction 11.5h, the water for evaporating generation is the crude product of reaction；
Step 4：Gained is crude product after distillation, sequentially with the aqueous solution and distillation water washing, then is solvent with dichloromethane
Dilaurate triethanolamine ester is obtained after silica gel column separating purification；
Step 5：The dilaurate triethanolamine ester that the sad triethanolamine ester and step 4 that step 2 is obtained are obtained by
It is sad triethanolamine ester according to weight ratio：Dilaurate triethanolamine ester=0.5:0.5 is well mixed.
Embodiment 3
Step one：According to mol ratio, octanoic acid：Triethanolamine=1.5:1 is mixed, by the mixing of octanoic acid and triethanolamine
Thing and phenol solution are placed in round-bottomed flask, are depressurized, heating response, and reaction temperature is controlled at 140 DEG C, react 8h, are steamed
Fall the water of reaction generation, residue is crude product；
Step 2：Gained is crude product after vacuum distillation, is dissolved in isooctane, sequentially with the NaOH aqueous solution and distillation
Water washing, to remove unreacted caprylic acid, corresponding solvent and triethanolamine, finally passes through rotary evaporation by solvent isooctane
Instrument evaporates to obtain final product；
Step 3：According to laurate：Triethanolamine=2.3:1 mol ratio ratio weighed on electronic balance laurate and
Triethanolamine, first adds laurate and to toluic acid in there-necked flask, and in the dropping funel of there-necked flask restocking one, constant speed is added dropwise three second
Hydramine, is dripped within half an hour, loads onto reflux condensing tube, and reaction temperature is controlled at 140 DEG C, is flowed back 0.5 hour, it is slightly cold after,
Distilling apparatus is changed to, distillation reaction 11.5h, the water for evaporating generation is the crude product of reaction；
Step 4：Gained is crude product after distillation, sequentially with the aqueous solution and distillation water washing, then is solvent with dichloromethane
Dilaurate triethanolamine ester is obtained after silica gel column separating purification；
Step 5：The dilaurate triethanolamine ester that the sad triethanolamine ester and step 4 that step 2 is obtained are obtained by
It is sad triethanolamine ester according to weight ratio：Dilaurate triethanolamine ester=0.2:0.8 is well mixed.
Embodiment 4
Step one：According to mol ratio, octanoic acid：Triethanolamine=1.6:1 is mixed, by the mixing of octanoic acid and triethanolamine
Thing and phenol solution are placed in round-bottomed flask, are depressurized, heating response, and reaction temperature is controlled at 140 DEG C, react 8h, are steamed
Fall the water of reaction generation, residue is crude product；
Step 2：Gained is crude product after vacuum distillation, is dissolved in isooctane, sequentially with the NaOH aqueous solution and distillation
Water washing, to remove unreacted caprylic acid, corresponding solvent and triethanolamine, finally passes through rotary evaporation by solvent isooctane
Instrument evaporates to obtain final product；
Step 3：According to laurate：Triethanolamine=2.0:1 mol ratio ratio weighed on electronic balance laurate and
Triethanolamine, first adds laurate and to toluic acid in there-necked flask, and in the dropping funel of there-necked flask restocking one, constant speed is added dropwise three second
Hydramine, is dripped within half an hour, loads onto reflux condensing tube, and reaction temperature is controlled at 140 DEG C, is flowed back 0.5 hour, it is slightly cold after,
Distilling apparatus is changed to, distillation reaction 11.5h, the water for evaporating generation is the crude product of reaction；
Step 4：Gained is crude product after distillation, sequentially with the aqueous solution and distillation water washing, then is solvent with dichloromethane
Dilaurate triethanolamine ester is obtained after silica gel column separating purification；
Step 5：The dilaurate triethanolamine ester that the sad triethanolamine ester and step 4 that step 2 is obtained are obtained by
It is sad triethanolamine ester according to weight ratio：Dilaurate triethanolamine ester=0.7:0.3 is well mixed.
Embodiment 5
Step one：According to mol ratio, octanoic acid：Triethanolamine=1.4:1 is mixed, by the mixing of octanoic acid and triethanolamine
Thing and phenol solution are placed in round-bottomed flask, are depressurized, heating response, and reaction temperature is controlled at 138 DEG C, react 8h, are steamed
Fall the water of reaction generation, residue is crude product；
Step 2：Gained is crude product after vacuum distillation, is dissolved in isooctane, sequentially with the NaOH aqueous solution and distillation
Water washing, to remove unreacted caprylic acid, corresponding solvent and triethanolamine, finally passes through rotary evaporation by solvent isooctane
Instrument evaporates to obtain final product；
Step 3：According to laurate：Triethanolamine=1.9:1 mol ratio ratio weighed on electronic balance laurate and
Triethanolamine, first adds laurate and to toluic acid in there-necked flask, and in the dropping funel of there-necked flask restocking one, constant speed is added dropwise three second
Hydramine, is dripped within half an hour, loads onto reflux condensing tube, and reaction temperature is controlled at 140 DEG C, is flowed back 0.5 hour, it is slightly cold after,
Distilling apparatus is changed to, distillation reaction 11.5h, the water for evaporating generation is the crude product of reaction；
Step 4：Gained is crude product after distillation, sequentially with the aqueous solution and distillation water washing, then is solvent with dichloromethane
Dilaurate triethanolamine ester is obtained after silica gel column separating purification；
Step 5：The dilaurate triethanolamine ester that the sad triethanolamine ester and step 4 that step 2 is obtained are obtained by
It is sad triethanolamine ester according to weight ratio：Dilaurate triethanolamine ester=1:0 is well mixed.
Embodiment 6-11 is the preparation embodiment of cement grinding aid.
Embodiment 6
I first pours into reactor prepared according to embodiment 1 20 parts of modified triethanolamines, then is poured under stirring
8 parts of dichloromethane are mixed, and are heated to reflux 12h, are cooled down stand-by；
II is transferred in stirred tank the mixture that step I is obtained, add 20 parts of beet molasses, 4 parts of sodium lignin sulfonates,
80 parts of water, discharge after stirring 1h and obtain final product.
Embodiment 7
I first pours into reactor prepared according to embodiment 2 15 parts of modified triethanolamines, then is poured under stirring
4 parts of 1,1- dichloroethanes are mixed, and are heated to reflux 12h, are cooled down stand-by；
II is transferred in stirred tank the mixture that step I is obtained, and adds 15 parts of glucose sugar molasses, 1 part of lignin sulfonic acid
Sodium, 60 parts of water, discharge after stirring 1h and obtain final product.
Embodiment 8
I first pours into reactor prepared according to embodiment 35 parts of modified triethanolamines, then pours into 3 under stirring
Part 1,2- dichloroethanes is mixed, and is heated to reflux 12h, is cooled down stand-by；
II is transferred in stirred tank the mixture that step I is obtained, add 10 parts of cane molasses, 2 parts of sodium lignin sulfonates,
70 parts of water, discharge after stirring 1h and obtain final product.
Embodiment 9
I first pours into reactor prepared according to embodiment 4 10 parts of modified triethanolamines, then is poured under stirring
According to mol ratio, by dichloromethane：1,1- dichloroethanes=1:The 15 parts of mixed solutions for mixing are mixed, heating
Backflow 12h, cools down stand-by；
II is transferred in stirred tank the mixture that step I is obtained, add 5 parts of cane molasses, 3 parts of sodium lignin sulfonates,
75 parts of water, discharge after stirring 1h and obtain final product.
Embodiment 10
I first pours into reactor prepared according to embodiment 5 30 parts of modified triethanolamines, then is poured under stirring
According to mol ratio, by dichloromethane：1,1- dichloroethanes:1,2- dichloroethanes=1:1：The 16 parts of mixed solutions for mixing enter
Row is mixed, and is heated to reflux 12h, is cooled down stand-by；
II is transferred in stirred tank the mixture that step I is obtained, add 13 parts of beet molasses, 2 parts of sodium lignin sulfonates,
65 parts of water, discharge after stirring 1h and obtain final product.
Comparative example
From the embodiment as a comparison of embodiment 4 in documents CN201210265048.6
Weigh each component by following mass percent, diethylene glycol (DEG) 3.3%, diethanol amine 3%, diethanol monoisopropanolamine 23%,
Molasses 4%, potassium chloride 1%, sodium chloride 7%, polyalcohol amine 25%, water 33.7%.
Under normal temperature, molecules surfactant and water are put into reactor, add molasses, potassium chloride, sodium chloride, homogenizing
(stirring) 15 minutes, adds diethanol monoisopropanolamine, and homogenizing (stirring) 15 minutes adds two sweet
Alcohol, diethanol amine, after 30 minutes, discharge homogenizing (stirring) barrelling after 200 mesh filter screens are filtered.
Grinding aid is tested
It is prepared by the cement grinding aid S6 to S10 prepared to embodiment 10 according to embodiment 6 of equivalent and comparative example
Cement grinding aid D1 be applied to cement it is small mill experiment in, the formula of cement raw material is（Mixture by mass percentage）：Cement is ripe
Material 58.0%, gypsum 4.0%, lime stone 23.0%, silica sand rock 4.0% high, manganese slag 1.0% and bottom slag 10.0%.By cement raw material point 6
Group is respectively placed in laboratory mill, every group successively labeled as control sample, sample 6, sample 7 ... sample 10, respectively to control sample and
0.05% addition cement grinding aid D1 and S6 to S10 of cement raw material quality is pressed in sample 6 to 10, and carries out grinding Cheng Shui respectively
Mud, records the usage amount of grinding process reclaimed water, calculates the ratio that water consumption accounts for cement.To the cement that is made by GB175-2007
《Portland cement》Detected, the inspection data of the cement of gained is shown in Table 1, further according to Duncan multiple range tests
One-way analysis of variance method（Horizontal α=0.05 of the significance of difference）, using spss17.0 data processing softwares carry out significant difference
Property analysis, analysis result is shown in Table 1.
Table 1
Antibacterial experiment
Step 1：Escherichia coli are placed in LB culture mediums and are cultivated, dispersion concentration is 80cfu ﹒ mL-1, bacterium solution is divided into 6
Part, record the initial concentration C1 of Escherichia coli.Be separately added into every part of bacterium solution equivalent according to comparative example and embodiment
The cement grinding aid that 6-10 makes, by determining the concentration C 2 of Escherichia coli after 6h, and calculates according to formula and records concentration and subtract
Few rate.
Formula：Concentration slip=（C1-C2）/C1.
Step 2：The experiment that pneumobacillus, hay bacillus repeat Escherichia coli is taken again.
The concentration slip of table 2
As it can be seen from table 1 compared to comparative example, sign of the present invention in grinding-aid effects such as fineness, specific surface areas
All there is more preferable effect in data.Meanwhile, the present invention also has comparison than implementing in 3d compression strength and 28d compression strength
The more preferable effect of example, generally reduces 5 percentage points in water consumption than comparative example（With the weight ratio of cement）.While this hair
Bright being even more on anti-microbial property is substantially better than comparative example.Simultaneously because using the cement of cement grinding aid of the present invention in construction
After the completion of in the absence of chloride ion corrosion problem, therefore, it is possible to the use time and use intensity of cement is significantly greatly increased.
Some advantage can be seen that cement grinding aid of the present invention more than has great market prospects, it should pushed away
Wide application.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of cement grinding aid, it is characterized in that：Including being prepared from by the raw material that following parts by weight are major constituent：
Modified triethanolamine 5-30 parts
Molasses 5-20 parts
Lignin derivative 1-4 parts
Chlorohydrocarbon 3-8 parts
Water 60-80 parts.
2. cement grinding aid according to claim 1, it is characterized in that：Including being the raw material of major constituent by following parts by weight
It is prepared from：
Modified triethanolamine 5-20 parts
Molasses 5-15 parts
Lignin derivative 1-4 parts
Chlorohydrocarbon 3-6 parts
Water 60-80 parts.
3. cement grinding aid according to claim 1, it is characterized in that：According to weight ratio, the modified triethanolamine is by pungent
Triethylenetetraminehexaacetic acid alkanolamine ester：Dilaurate triethanolamine ester=0-1:1-0 is constituted.
4. cement grinding aid according to claim 1, it is characterized in that：The molasses select beet molasses, cane molasses, Portugal
One of which in sugared molasses.
5. cement grinding aid according to claim 1, it is characterized in that：The lignin derivative is preferably lignin sulfonic acid
Sodium.
6. cement grinding aid according to claim 1, it is characterized in that：The chlorohydrocarbon selects dichloromethane, 1,1- dichloros
One of which or several in ethane, 1,2- dichloroethanes.
7. cement grinding aid according to claim 3, it is characterized in that：The preparation method of the modified triethanolamine is included such as
Lower step：
Step one：According to mol ratio, octanoic acid：Triethanolamine=1.4-1.6:1 is mixed, by the mixing of octanoic acid and triethanolamine
Thing and phenol solution are placed in round-bottomed flask, are depressurized, heating response, and reaction temperature is controlled at 130-140 DEG C, reaction
8h, evaporates the water of reaction generation, and residue is crude product；
Step 2：Gained is crude product after vacuum distillation, is dissolved in isooctane, is sequentially washed with the NaOH aqueous solution and distillation
Wash, to remove unreacted caprylic acid, corresponding solvent and triethanolamine, finally solvent isooctane is steamed by Rotary Evaporators
Hair falls to obtain final product；
Step 3：According to laurate：Triethanolamine=1.9-2.3:1 mol ratio ratio weighed on electronic balance laurate and
Triethanolamine, first adds laurate and to toluic acid in there-necked flask, and in the dropping funel of there-necked flask restocking one, constant speed is added dropwise three second
Hydramine, is dripped within half an hour, loads onto reflux condensing tube, and reaction temperature is controlled at 140 DEG C, is flowed back 0.5 hour, it is slightly cold after,
Distilling apparatus is changed to, distillation reaction 11.5h, the water for evaporating generation is the crude product of reaction；
Step 4：Gained is crude product after distillation, sequentially with the aqueous solution and distillation water washing, then is solvent through silicon with dichloromethane
Dilaurate triethanolamine ester is obtained after glue column separating purification；
Step 5：The dilaurate triethanolamine ester that the sad triethanolamine ester and step 4 that step 2 is obtained are obtained is according to weight
Amount is than being sad triethanolamine ester：Dilaurate triethanolamine ester=0-1:1-0 is well mixed.
8. a kind of preparation method of cement grinding aid as claimed in claim 1, it is characterized in that：Comprise the following steps：
I first pours into reactor 5-30 parts of modified triethanolamine, then 3-8 parts of chlorohydrocarbon is poured under stirring is mixed
Stirring, is heated to reflux 12h, cools down stand-by；
II is transferred in stirred tank the mixture that step I is obtained, and adds 5-20 parts of molasses, 1-4 parts of lignin derivative, 60-
80 parts of water, discharge after stirring 1h and obtain final product.
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| CN106116235A (en) * | 2016-06-28 | 2016-11-16 | 安徽科博建材科技有限公司 | A kind of cement agent prescription |
| CN106748754A (en) * | 2016-12-30 | 2017-05-31 | 广州德旭新材料有限公司 | A kind of soaps compound and preparation method thereof |
| CN107986648A (en) * | 2017-12-26 | 2018-05-04 | 天津山水水泥有限公司 | Portland slag cement and preparation method thereof |
| CN114477845A (en) * | 2022-03-21 | 2022-05-13 | 辛集慕湖混凝土有限公司 | Cement grinding aid and preparation method thereof |
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| US5833724A (en) * | 1997-01-07 | 1998-11-10 | Norton Company | Structured abrasives with adhered functional powders |
| US5885311A (en) * | 1997-06-05 | 1999-03-23 | Norton Company | Abrasive products |
| US6293980B2 (en) * | 1999-12-20 | 2001-09-25 | Norton Company | Production of layered engineered abrasive surfaces |
| CN101337788A (en) * | 2008-08-08 | 2009-01-07 | 山东山水水泥集团有限公司 | Modified triethanolamine, preparation method and application thereof |
| CN101665339B (en) * | 2009-09-10 | 2012-05-23 | 惠州市富力新技术有限公司 | Enhanced cement composite grinding aid |
| CN101665439B (en) * | 2009-09-29 | 2012-11-07 | 山东大学 | Acetic acid triethanolamine ester as well as preparation and application thereof |
| CN101693605A (en) * | 2009-10-12 | 2010-04-14 | 东阿东昌天汇科技有限公司 | Composite high-efficient liquid cement grinding aid |
| CN102079713B (en) * | 2009-12-01 | 2014-06-04 | 南京理工大学 | Cross-linked polyquaternary ammonium salt type antibiosis monomer, preparation method of cross-linked polyquaternary ammonium salt type antibiosis monomer and application of cross-linked polyquaternary ammonium salt type antibiosis monomer in dentistry repairing materials |
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