CN109180056A - A kind of nanometer of class molybdenum disulfide grinding aid and preparation method thereof - Google Patents
A kind of nanometer of class molybdenum disulfide grinding aid and preparation method thereof Download PDFInfo
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- CN109180056A CN109180056A CN201811368771.0A CN201811368771A CN109180056A CN 109180056 A CN109180056 A CN 109180056A CN 201811368771 A CN201811368771 A CN 201811368771A CN 109180056 A CN109180056 A CN 109180056A
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- molybdenum disulfide
- grinding aid
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- 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
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- 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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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a kind of nanometer of class molybdenum disulfide grinding aid, each component and its shared mass percent are as follows: diethanol monoisopropanolamine 30-33%, triethanolamine 7-8%, molybdenum disulfide dispersion liquid 7-8%, molasses 11-12%, polyalcohol 11-12%, saturated salt solution 25-30%, surplus are water.Nanometer class molybdenum disulfide is applied to prepare grinding aid for the first time by the present invention, can effectively improve grinding quality while significantly reducing grinding cost；And gained grinding aid is nontoxic environmental-friendly, and absorbable ultraviolet light, has significant environmental benefit；In addition, the present invention organically combines solid grinding aid and liquid grinding aid, gained cement grinding aid is in colloidal state, has preferably dispersing type compared to existing solid grinding aid, has more excellent effect compared to liquid grinding aid, is suitble to promote and apply.
Description
Technical field
The invention belongs to concrete production processing technique fields, and in particular to a kind of nanometer of class molybdenum disulfide grinding aid and its
Preparation method.
Background technique
In recent years, China's building trade was quickly grown, and cement is material the most basic in building trade, cement industry hair
The excessively high problem of energy consumption is also too impatient to wait in exhibition.And in cement production process, the excessively high reason of energy consumption is mainly grinding effect
Rate is low, therefore improving mill efficiency is one of the mode the most effective that solves the above problems.Usually improve mill efficiency
Mode there are two types of: first is that the improvement mechanical structure that uses of milling and then improving milling mode and technique；Another then adds
A small amount of grinding aid is added to effectively improve mill efficiency.Obviously, the second way is more simple and effective, in addition, grinding aid adds
Cement performance can also be improved to a certain extent by adding.In general, cement grinding aid mainly includes solid and two kinds of liquid grinding aid,
Solid grinding aid mainly includes talcum powder, aquadag, carbon black, flyash, stearates etc., and liquid grinding aid includes three second
Hydramine, polyalcohol, molasses etc., cement plant is mainly based on liquid grinding aid at this stage.
The effect of grinding aid mainly has following two points in grinding process: 1) being adsorbed onto large particle surface, accelerate big in grinding
The fracture of particle；2) improve short grained fluidity and prevent from reuniting.However, individually liquid grinding aid is accelerating grinding big
Grain fracture process in effect it is general, and solid grinding aid improve mobility prevent reunion in terms of there is also certain to ask
Topic, simple liquid or solid grinding aid can not promote mill efficiency and milling extreme value simultaneously.
Modified cement grinding aid of a kind of graphene oxide and preparation method thereof is disclosed in patent CN106380110A, mainly
Ingredient is polymerized polyalcohol 35-55%, acrylate 2-5%, amino-polyethyleneglycols 3-6%, tetraisopropyl titanate 1-3%, is gathered
Carboxylic acid water reducer 3-8%, neopelex 1-2%, sodium sulfate of polyethenoxy ether of fatty alcohol 1-2%, triethanolamine 5-
10%, triisopropanolamine 5-10%, graphene oxide water solution 1-5%, surplus are industrial wastewater.It is only a small amount of in the grinding aid
Graphene is present in grinding aid, only plays its grinding aid performance as single presence, can not improve grinding aid self character,
And the deposited phenomenon from after reuniting can even occur after standing.In addition, graphene selling at exorbitant prices, needs to consume in preparation engineering
A large amount of thermal energy, technique is extremely complex, is not very suitable for industrial processes.
Summary of the invention
It is a primary object of the present invention in view of the deficienciess of the prior art, providing a kind of nanometer of class molybdenum disulfide grinding aid
Agent, mill efficiency is high and cheap, and after grinding water mud and other additive adaptability are excellent, and can effectively absorb ultraviolet light,
It is nontoxic environmental-friendly, it is suitble to promote and apply.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of nanometer of class molybdenum disulfide grinding aid, each component and its shared mass percent are as follows: diethanol monoisopropanolamine
30-33%, triethanolamine 7-8%, molybdenum disulfide dispersion liquid 7-8%, molasses 11-12%, polyalcohol 11-12%, saturated common salt
Water 25-30%, surplus are water.
Preferably, in the nanometer class molybdenum disulfide grinding aid, each component and its shared mass percent are as follows: diethanol list
Isopropanolamine 32%, triethanolamine 7%, molybdenum disulfide dispersion liquid 8%, molasses 11%, polyalcohol 11%, saturated salt solution
28%, water 3%.
In above scheme, the molybdenum disulfide dispersion liquid is that nano-sheet molybdenum disulfide is dispersed in water the colloid to be formed,
Its concentration is 15-20mg/ml.
In above scheme, the preparation method of the molybdenum disulfide dispersion liquid includes the following steps: to surpass molybdenum disulfide simple substance
Sound is dispersed in water, and hydrochloric acid is then added, and is carried out ultrasonic removing, is filtered, washed to obtain nano-sheet molybdenum disulfide, and then plus water is mixed
Close the uniform colloid for obtaining respective concentration.
In above scheme, the concentration of hydrochloric acid is 1-1.5mol/L, and the HCl of introducing and the molar ratio of molybdenum disulfide are 1:
(0.8-1)。
In above scheme, the power that the ultrasound removing uses is 300-360W, time 1-1.5h.
In above scheme, the polyalcohol is one or more of polyether polyol.
The preparation method of above-mentioned a kind of nanometer of class molybdenum disulfide grinding aid, includes the following steps:
1) each raw material, each raw material and its shared mass percent are weighed according to the ratio are as follows: diethanol monoisopropanolamine 30-
33%, triethanolamine 7-8%, molybdenum disulfide dispersion liquid 7-8%, molasses 11-12%, polyalcohol 11-12%, saturated salt solution
25-30%, surplus are water；
2) weighed molybdenum disulfide dispersion liquid is added in diethanol monoisopropanolamine and ultrasonic disperse is uniform；Then successively
Triethanolamine, molasses, polyalcohol, saturated salt solution, water is added, it is uniform to continue ultrasonic disperse；It is stirred again and stewing process,
Obtain nanoscale molybdenum disulfide grinding aid.
The principle of the present invention are as follows:
Present invention firstly provides solid grinding aid and liquid grinding aid to be organically combined to the mode to form suspension, by nanometer
Flaky molybdenum disulfide is applied to prepare cement grinding aid, it has biggish specific surface area and stable physicochemical properties,
It is can be uniformly dispersed after nanosizing and forms suspension in the organic solvents such as diethanol monoisopropanolamine and triethanolamine.It is made outstanding
After supernatant liquid, the original effect for accelerating fracture of molybdenum disulfide can be played and improve curing using its colloidal state
The dispersion flows of molybdenum accelerate to optimize the bad of solid grinding aid poor dispersion in the performance being broken promoting molybdenum disulfide itself
Gesture, and the functioning efficiency of alcohol amine key in liquid grinding aid ingredient is promoted simultaneously.In addition, molybdenum disulfide is as a kind of semiconductor material,
With good optical characteristics, ultraviolet light can be effectively absorbed, is a kind of environmentally friendly construction material.
Compared with prior art, the invention has the benefit that
1) present invention uses nanometer class molybdenum disulfide as one of main component of grinding aid, and molybdenum disulfide is cheap,
Greatly reduce grinding cost；
2) molybdenum disulfide specific surface area with higher and excellent tribological property can be adsorbed on surface of material and improve
Fluidity, and then prevent from reuniting, grinding aid and lubricating action can be played simultaneously, significantly improve mill efficiency in lesser volume,
The material of grinding have bigger specific surface area and it is smaller tail over, further decrease grinding cost and improve grinding quality；
3) grinding aid is nontoxic environmental-friendly, and absorbable ultraviolet light, protects the health of the mankind；
4) present invention firstly provides by solid grinding aid and liquid grinding aid combination, gained cement grinding aid is in colloid
State has better dispersibility compared to solid grinding aid, can effectively accelerate particle in grinding process compared to liquid grinding aid
The fracture process of component possesses more excellent effect.
Detailed description of the invention
Fig. 1 is the preparation process flow schematic diagram of nanometer class molybdenum disulfide grinding aid of the present invention.
Specific embodiment
For a better understanding of the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but it is of the invention
Content is not limited solely to the following examples.
Embodiment 1
A kind of nanometer of class molybdenum disulfide grinding aid, is made of following materials in percentage by mass: diethanol monoisopropanolamine
32%, triethanolamine 7%, molybdenum disulfide dispersion liquid 8%, molasses 11%, polyether polyol 11%, saturated salt solution 28%, remain
Remaining water 3%；Specific preparation process includes the following steps:
Ultrasonic disperse 20min in diethanol monoisopropanolamine is added in weighed molybdenum disulfide dispersion liquid (20mg/ml)；So
After sequentially add weighed triethanolamine, molasses, polyalcohol, saturated salt solution and water and ultrasound 10min；Finally, stirring 20min
Stand 12h afterwards to get nanometer class molybdenum disulfide grinding aid is arrived.
Wherein molybdenum disulfide dispersion solution preparing step includes: that 16g molybdenum disulfide block is added in 1000ml water, ultrasound point
Dissipate 30min；The hydrochloric acid that 100ml concentration is 1mol/L is added into acquired solution, ultrasonic (360W) is removed 2 hours and obtained curing
Molybdenum nanometer sheet；Then filtration washing is to neutrality；Molybdenum disulfide nano sheet obtained by converting on filter membrane is rushed using deionized water to get concentration
For the molybdenum disulfide dispersion liquid of 20mg/ml.
Embodiment 2
A kind of nanometer of class molybdenum disulfide grinding aid, is made of following materials in percentage by mass: diethanol monoisopropanolamine
30%, triethanolamine 8%, molybdenum disulfide dispersion liquid 8%, molasses 12%, polyether polyol 12%, saturated salt solution 25%, remain
Remaining water 5%；Specific preparation process includes the following steps:
Ultrasonic disperse 20min in diethanol monoisopropanolamine is added in weighed molybdenum disulfide dispersion liquid (20mg/ml)；So
After sequentially add weighed triethanolamine, molasses, polyalcohol, saturated salt solution and water and ultrasound 10min；Finally, stirring 20min
Stand 12h afterwards to get nanometer class molybdenum disulfide grinding aid is arrived.
Wherein molybdenum disulfide dispersion solution preparing step includes: that 16g molybdenum disulfide block is added in 1000ml water, ultrasound point
Dissipate 30min；The hydrochloric acid that 100ml concentration is 1mol/L is added into acquired solution, ultrasound removing in 2 hours obtains molybdenum disulfide nano
Piece；Then filtration washing is to neutrality；Use deionized water punching convert on filter membrane gained molybdenum disulfide nano sheet to get concentration for
The molybdenum disulfide dispersion liquid of 20mg/ml.
Embodiment 3
A kind of nanometer of class molybdenum disulfide grinding aid, is made of following materials in percentage by mass: diethanol monoisopropanolamine
33%, triethanolamine 7%, molybdenum disulfide dispersion liquid 7%, molasses 11%, polyether polyol 11%, saturated salt solution 30%, remain
Remaining water 1%；Specific preparation process includes the following steps:
Ultrasonic disperse 20min in diethanol monoisopropanolamine is added in weighed molybdenum disulfide dispersion liquid (20mg/ml)；So
After sequentially add weighed triethanolamine, molasses, polyalcohol, saturated salt solution and water and ultrasound 10min；Finally, stirring 20min
Stand 12h afterwards to get nanometer class molybdenum disulfide grinding aid is arrived.
Wherein molybdenum disulfide dispersion solution preparing step includes: that 16g molybdenum disulfide block is added in 1000ml water, ultrasound point
Dissipate 30min；The hydrochloric acid that 100ml concentration is 1mol/L is added into acquired solution, ultrasound removing in 2 hours obtains molybdenum disulfide nano
Piece；Then filtration washing is to neutrality；Use deionized water punching convert on filter membrane gained molybdenum disulfide nano sheet to get concentration for
The molybdenum disulfide dispersion liquid of 20mg/ml.
Comparative example 1
Cement grinding aid material quality percentage is as follows: water 100%.
Comparative example 2
Cement grinding aid material quality percentage is as follows: diethanol monoisopropanolamine 32%, triethanolamine 7%, molasses
11%, polyalcohol 11%, saturated salt solution 28%, remaining water 11%, stirring is stood after mixing.
Model PC42.5 cement is chosen, adds embodiment 1,2,3 and comparative example 1,2 gained grinding aids respectively, and help
The additive amount of grinding agent is the 0.03% of gross mass.Test grinding fineness and cement performance, specific test result are shown in Table 1.
The cement the performance test results of 1 Examples 1 to 3 of table and comparative example 1,2 gained grinding aids
As can be seen from Table 1, nanometer class molybdenum disulfide grinding aid of the present invention can significantly improve the ratio table of grinding
Area and fineness, embodiment 2 improve 15.5% compared to grinding aid is not added tailing over after powder, and specific surface area improves
8.4%, 3d and 28d strength enhancing 13.7% and 9.6%.Pertinent literature shows (patent CN106380110A), joined
It, which is tailed over, after graphene is generally only capable of promoting 10-12%, absolutely proves that the present invention can further promote grinding aid performance.
Obviously, above-described embodiment is only intended to clearly illustrate made example, and is not the limitation to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation or change therefore amplified
It moves within still in the protection scope of the invention.
Claims (8)
1. a kind of nanometer of class molybdenum disulfide grinding aid, each component and its shared mass percent are as follows: diethanol monoisopropanolamine 30-
33%, triethanolamine 7-8%, molybdenum disulfide dispersion liquid 7-8%, molasses 11-12%, polyalcohol 11-12%, saturated salt solution
25-30%, surplus are water.
2. according to claim 1 nanometer of class molybdenum disulfide grinding aid, which is characterized in that the nanometer class molybdenum disulfide helps
In grinding agent, each component and its shared mass percent are as follows: diethanol monoisopropanolamine 32%, triethanolamine 7%, molybdenum disulfide point
Dispersion liquid 8%, molasses 11%, polyalcohol 11%, saturated salt solution 28%, water 3%.
3. according to claim 1 nanometer of class molybdenum disulfide grinding aid, which is characterized in that the molybdenum disulfide dispersion liquid is
Nano-sheet molybdenum disulfide is dispersed in water the colloid to be formed, concentration 15-20mg/ml.
4. according to claim 1 nanometer of class molybdenum disulfide grinding aid, which is characterized in that the molybdenum disulfide dispersion liquid
Preparation method includes the following steps: molybdenum disulfide simple substance ultrasonic disperse in water, and hydrochloric acid is then added, carry out ultrasonic removing,
Be filtered, washed to obtain nano-sheet molybdenum disulfide, be then mixed with water respective concentration colloid.
5. according to claim 1 nanometer of class molybdenum disulfide grinding aid, which is characterized in that the concentration of hydrochloric acid is 1-
1.5mol/L, the HCl of introducing and the molar ratio of molybdenum disulfide are 1:(0.8-1).
6. according to claim 1 nanometer of class molybdenum disulfide grinding aid, which is characterized in that the function that the ultrasound removing uses
Rate is 300-360W, time 1-1.5h.
7. according to claim 1 nanometer of class molybdenum disulfide grinding aid, which is characterized in that the polyalcohol is polyether polyols
Alcohol.
8. the preparation method of any one of the claim 1~7 nanometer class molybdenum disulfide grinding aid, which is characterized in that including such as
Lower step:
1) each raw material, each raw material and its shared mass percent are weighed according to the ratio are as follows: diethanol monoisopropanolamine 30-33%, three
Ethanol amine 7-8%, molybdenum disulfide dispersion liquid 7-8%, molasses 11-12%, polyalcohol 11-12%, saturated salt solution 25-30%,
Surplus is water；
2) weighed molybdenum disulfide dispersion liquid is added in diethanol monoisopropanolamine and ultrasonic disperse is uniform；Then it sequentially adds
It is uniform to continue ultrasonic disperse for triethanolamine, molasses, polyalcohol, saturated salt solution, water；Be stirred again with stewing process to get
To nanometer class molybdenum disulfide grinding aid.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115594447A (en) * | 2022-09-27 | 2023-01-13 | 成都精准混凝土有限公司（Cn） | Super high-rise pumping concrete and preparation method thereof |
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| CN103435288A (en) * | 2013-08-19 | 2013-12-11 | 济南大学 | Novel grinding enhancer and preparation and application thereof |
| EP2774941A1 (en) * | 2013-03-06 | 2014-09-10 | Construction Research & Technology GmbH | Branched polycarboxylate ethers |
| CN105198244A (en) * | 2015-09-15 | 2015-12-30 | 和县浙徽新型材料有限公司 | Superfine slag powder capable of improving mixcapacity of concrete and preparation method thereof |
| CN106810101A (en) * | 2015-12-01 | 2017-06-09 | 济南大学 | The preparation method of graphene oxide enhanced cement grinding aid |
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2018
- 2018-11-16 CN CN201811368771.0A patent/CN109180056B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2774941A1 (en) * | 2013-03-06 | 2014-09-10 | Construction Research & Technology GmbH | Branched polycarboxylate ethers |
| CN103435288A (en) * | 2013-08-19 | 2013-12-11 | 济南大学 | Novel grinding enhancer and preparation and application thereof |
| CN105198244A (en) * | 2015-09-15 | 2015-12-30 | 和县浙徽新型材料有限公司 | Superfine slag powder capable of improving mixcapacity of concrete and preparation method thereof |
| CN106810101A (en) * | 2015-12-01 | 2017-06-09 | 济南大学 | The preparation method of graphene oxide enhanced cement grinding aid |
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Cited By (1)
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| CN115594447A (en) * | 2022-09-27 | 2023-01-13 | 成都精准混凝土有限公司（Cn） | Super high-rise pumping concrete and preparation method thereof |
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