CN105461917B - Compatibility improvement agent and its production and use - Google Patents
Compatibility improvement agent and its production and use Download PDFInfo
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- CN105461917B CN105461917B CN201510779345.6A CN201510779345A CN105461917B CN 105461917 B CN105461917 B CN 105461917B CN 201510779345 A CN201510779345 A CN 201510779345A CN 105461917 B CN105461917 B CN 105461917B
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- improvement agent
- cement
- compatibility improvement
- compatibility
- water reducing
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- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 239000004568 cement Substances 0.000 claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- 238000000227 grinding Methods 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 230000018044 dehydration Effects 0.000 claims abstract description 12
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 12
- 238000010792 warming Methods 0.000 claims abstract description 12
- 239000003054 catalyst Substances 0.000 claims abstract description 11
- 229920000642 polymer Polymers 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 54
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 150000005846 sugar alcohols Polymers 0.000 claims description 11
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 claims description 8
- 229940043276 diisopropanolamine Drugs 0.000 claims description 8
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 claims description 6
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims description 5
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 5
- 229940043237 diethanolamine Drugs 0.000 claims description 5
- 235000011187 glycerol Nutrition 0.000 claims description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- BYACHAOCSIPLCM-UHFFFAOYSA-N 2-[2-[bis(2-hydroxyethyl)amino]ethyl-(2-hydroxyethyl)amino]ethanol Chemical compound OCCN(CCO)CCN(CCO)CCO BYACHAOCSIPLCM-UHFFFAOYSA-N 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 2
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims 1
- -1 hydroxypropyl Chemical group 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 21
- 239000000463 material Substances 0.000 abstract description 5
- 239000004566 building material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 10
- 238000001514 detection method Methods 0.000 description 9
- 239000011521 glass Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 239000002956 ash Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- JMFLYAQVWMIMKC-UHFFFAOYSA-N 3-(2-aminoethylamino)propane-1,1,1,3-tetrol Chemical class NCCNC(O)CC(O)(O)O JMFLYAQVWMIMKC-UHFFFAOYSA-N 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 241001062009 Indigofera Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- SBKWKYBSBGTWGC-UHFFFAOYSA-N but-3-ene-1,1,1,2-tetrol Chemical group C=CC(O)C(O)(O)O SBKWKYBSBGTWGC-UHFFFAOYSA-N 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 229940102253 isopropanolamine Drugs 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/32—Polyethers, e.g. alkylphenol polyglycolether
-
- 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
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2650/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G2650/28—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the polymer type
- C08G2650/52—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the polymer type obtained by dehydration of polyhydric alcohols
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Polyethers (AREA)
Abstract
The invention belongs to chemical building material field, and in particular to a kind of Compatibility improvement agent and its production and use, the Compatibility improvement agent can be used as cement grinding aid and cement water reducing agent.Technical problem solved by the invention is to provide a kind of preparation method of brand-new Compatibility improvement agent, and this method has the advantages that volume is low, cost is low, production is simple.The preparation method of Compatibility improvement agent of the present invention comprises the following steps：A, polyhydroxy compound and catalyst are added into reactor, it is 0.085~0.095MPa to control vacuum, is warming up to 150~230 DEG C；B, 3~8h of dehydration, reaction terminate, and obtain the Compatibility improvement agent using ether polymer as main component.Compatibility improvement agent provided by the invention can obviously improve the compatibility of water reducer and cement and concrete, and not influence the strength development of concrete.Application of the supplementary cementitious material in cement and concrete can be promoted, is advantageous to the energy-saving and emission-reduction of construction industry, there is good market application foreground.
Description
Technical field
The invention belongs to chemical building material field, and in particular to a kind of Compatibility improvement agent and its production and use, should
Compatibility improvement agent can be used as cement grinding aid and cement water reducing agent.
Background technology
Produce cement and concrete generally use addition flyash, slag powders, agstone, natural volcanic ash, silicon ash, phosphorus
The supplementary cementitious materials such as ground-slag improve the performance of cement and concrete and reduce production cost, but the often Asia of this portion of material
First indigo plant adsorptive value is higher, makes the compatibility of water reducer and cement and concrete bad, cause water reducer volume excessive and through when damage
Lose excessive, difficulty is brought to engineering construction.
To solve above-mentioned consistency problem, the present inventor provides a kind of Compatibility improvement agent, for improving diminishing
Agent and cement, the consistency problem of concrete.
The content of the invention
Technical problem solved by the invention is to provide a kind of preparation method of brand-new Compatibility improvement agent, this method tool
Have the advantages that volume is low, cost is low, production is simple.
The preparation method of Compatibility improvement agent of the present invention comprises the following steps：
A, polyhydroxy compound and catalyst are added into reactor, it is -0.085~-0.095MPa to control vacuum, is warming up to
150~230 DEG C；
B, 3~8h of dehydration, reaction terminate, and obtain the Compatibility improvement agent using ether polymer as main component.
In above-mentioned technical proposal, polyhydroxy compound described in step A includes following two：
1) polyhydroxy compound is dihydric alcohol and trihydroxylic alcohol：The mol ratio of dihydric alcohol and trihydroxylic alcohol is：nDihydric alcohol:nTrihydroxylic alcohol=
0.5~2.0:1；
2) polyhydroxy compound is dihydric alcohol, trihydroxylic alcohol and polyalcohol：Wherein, by weight percentage：Dihydric alcohol and
Trihydroxylic alcohol adds up to 80~100%, polyalcohol 0~20%, and polyalcohol is not zero；The mol ratio of dihydric alcohol and trihydroxylic alcohol is：nDihydric alcohol:
nTrihydroxylic alcohol=0.5~2.0:1.
Wherein, dihydric alcohol can be：Ethylene glycol, propane diols, butanediol, diethanol amine, diisopropanolamine (DIPA), methyl diethanol
Amine etc..Trihydroxylic alcohol can be：Glycerine, triethanolamine, triisopropanolamine, an ethanol diisopropanolamine, diethanol list isopropanol
Amine etc..Polyalcohol can be：Sorbierite, pentaerythrite, tetrahydroxyethyl-ethylene diamine, tetrahydroxypropyl ethylenediamine etc..
In above-mentioned technical proposal, catalyst described in step A is base catalyst, is specifically as follows sodium hydroxide, hydroxide
Potassium, metallic sodium, metallic potassium etc..The dosage of catalyst is calculated as 0.1~5.0%, particularly preferred 0.5 with polyhydroxy compound gross mass~
2.0%.
Wherein, the reaction temperature that step A is used reaction speed if too low is too slow, if temperature is too high to be easily caused polymer mistake
More interlinkages and water-soluble poor, therefore preferably 150~230 DEG C of temperature.
If the water for the too low generation of vacuum that step A is used can not remove in time, it can make it that reaction speed is too slow；If vacuum
Oligomer removal is influenceed yield by Du Taigaoyi；Therefore vacuum preferably -0.085~-0.095MPa.
In above-mentioned technical proposal, the molecular weight of ether polymer is too small described in step B, and its dispersion effect is poor, improves compatible
Property effect is poor；If molecular weight is too big, the deferred action to cement, concrete is too strong, influences whether that cement, the normal of concrete coagulate
Knot；Therefore the preferred 800-8000 dalton of the molecular weight of ether polymer.
Reaction time described in step B is oversize, and molecular weight is too big；Reaction time is too short, and molecular weight is too small；Therefore it is preferred that when reacting
Between be 3~8h.
The Compatibility improvement agent of gained of the invention, main component is the ether polymer for having side chain.The ether polymer has
There is space structure, can be preferentially adsorbed on supplementary cementitious material surface, reduce the absorption to water reducer, can largely change
Kind water reducer and cement, the compatibility of concrete.Simultaneously because ether polymer molecular weight is low compared with water reducer molecular weight, therefore mix
Measure it is relatively low, usually 0.01~0.05%, use cost is also low.Therefore it can be used as cement grinding aid and cement water reducing agent should
With.
To sum up, Compatibility improvement agent of the present invention using ether polymer as main component, can solve water reducer and cement,
The consistency problem of concrete, use cost are relatively low；Cement grinding aid and cement water reducing agent can be used as to use.
Embodiment
In order to illustrate the synthetic method of Compatibility improvement agent, in laboratory synthetic sample.
Embodiment 1
200g ethylene glycol, 300g glycerine and 5g sodium hydroxides are added to 1L glass stirred tank, opening vavuum pump will be anti-
Answer kettle to be evacuated to vacuum as -0.09MPa and keep the vacuum.200 DEG C are warming up to, the water for reacting generation is collected by condenser pipe
Into receiver, dehydration 6h, reaction terminates, and obtains Compatibility improvement agent 1, and detection molecules amount is 2347 dalton.
Embodiment 2
100g propane diols, the ethanol diisopropanolamines of 300g mono-, 100g tetrahydroxypropyl ethylenediamines and 5g sodium hydroxides are added
1L glass stirred tank, open vavuum pump and reactor is evacuated to vacuum as -0.09MPa and keeps the vacuum.It is warming up to 210
DEG C, the water for reacting generation is collected into receiver by condenser pipe, and dehydration 3h, reaction terminates, and obtains Compatibility improvement agent
2, detection molecules amount is 5504 dalton.
Embodiment 3
200g diethanol amine, 250g diethanols monoisopropanolamine, 50g sorbierites and 5g sodium hydroxides are added to 1L glass
Stirred tank, open vavuum pump and reactor is evacuated to vacuum as -0.09MPa and keeps the vacuum.200 DEG C are warming up to, reaction
The water of generation is collected into receiver by condenser pipe, and dehydration 4h, reaction terminates, and obtains Compatibility improvement agent 3, detection point
Son amount is 3175 dalton.
Embodiment 4
180g propane diols, 320g triethanolamines and 5g sodium hydroxides are added to 1L glass stirred tank, opening vavuum pump will
Reactor is evacuated to vacuum as -0.09MPa and keeps the vacuum.160 DEG C are warming up to, the water for reacting generation is received by condenser pipe
Collect in receiver, dehydration 5h, reaction terminates, and obtains Compatibility improvement agent 4, and detection molecules amount is 2048 dalton.
Embodiment 5
220g methyl diethanolamines, 280g glycerine and 5g sodium hydroxides are added to 1L glass stirred tank, open vacuum
Reactor is evacuated to vacuum as -0.09MPa and keeps the vacuum by pump.180 DEG C are warming up to, the water for reacting generation passes through condensation
Pipe is collected into receiver, and dehydration 5h, reaction terminates, and obtains Compatibility improvement agent 5, and detection molecules amount is 959 dalton.
Embodiment 6
240g diisopropanolamine (DIPA)s, 180g diethanols monoisopropanolamine, 80g tetrahydroxyethyl-ethylene diamines and 5g sodium hydroxides are added
Enter 1L glass stirred tank, open vavuum pump and reactor is evacuated to vacuum as -0.09MPa and keeps the vacuum.It is warming up to
200 DEG C, the water for reacting generation is collected into receiver by condenser pipe, and dehydration 7h, reaction terminates, and obtains Compatibility improvement
Agent 6, detection molecules amount are 6773 dalton.
Embodiment 7
170g propane diols, 330g glycerine and 5g sodium hydroxides are added to 1L glass stirred tank, opening vavuum pump will be anti-
Answer kettle to be evacuated to vacuum as -0.09MPa and keep the vacuum.150 DEG C are warming up to, the water for reacting generation is collected by condenser pipe
Into receiver, dehydration 8h, reaction terminates, and obtains Compatibility improvement agent 7, and detection molecules amount is 1044 dalton.
Embodiment 8
100g propane diols, 360g diethanols monoisopropanolamine, 40g pentaerythrites and 5g sodium hydroxides are added to 1L glass
Stirred tank, open vavuum pump and reactor is evacuated to vacuum as -0.09MPa and keeps the vacuum.220 DEG C are warming up to, reaction
The water of generation is collected into receiver by condenser pipe, and dehydration 6h, reaction terminates, and obtains Compatibility improvement agent 8, detection point
Son amount is 6373 dalton.
Embodiment 9
160g diethanol amine, 340g triisopropanolamines and 5g sodium hydroxides are added to 1L glass stirred tank, open vacuum
Reactor is evacuated to vacuum as -0.09MPa and keeps the vacuum by pump.180 DEG C are warming up to, the water for reacting generation passes through condensation
Pipe is collected into receiver, and dehydration 6h, reaction terminates, and obtains Compatibility improvement agent 9, and detection molecules amount is 1173 dongles
.
In order to illustrate the beneficial effect of Compatibility improvement agent of the present invention, concrete optimum contrast is done in laboratory, is coordinated such as
Table 1 below, workability of concrete and compression strength are shown in Table 2.
The concrete mix unit of table 1：kg/m3
| Group number | Cement | Miberal powder | Flyash | Machine-made Sand | Rubble | Water | Water reducer |
| A | 360 | 850 | 1050 | 170 | 7.0 | ||
| B~K | 280 | 30 | 50 | 850 | 1050 | 170 | 7.0 |
The workability of concrete of table 2 and compression strength
Visible by above-described embodiment, the polyhydroxy compound in preparation method of the present invention uses following two kinds of raw material cooperation sides
Formula can realize the basic effect for improving water reducer and cement and concrete compatibility：
1) polyhydroxy compound is dihydric alcohol and trihydroxylic alcohol：The mol ratio of dihydric alcohol and trihydroxylic alcohol is：nDihydric alcohol:nTrihydroxylic alcohol=
0.5~2.0:1；
2) polyhydroxy compound is dihydric alcohol, trihydroxylic alcohol and polyalcohol；Dihydric alcohol and trihydroxylic alcohol be total 80~100%,
Polyalcohol 0~20%, polyalcohol is not zero；The mol ratio of dihydric alcohol and trihydroxylic alcohol is：nDihydric alcohol:nTrihydroxylic alcohol=0.5~2.0:1.
Conclusion：Compatibility improvement agent prepared by the present invention can meet application requirement under 0.03% volume, can be obvious
Improve the compatibility of water reducer and cement and concrete, and do not influence the strength development of concrete.
To sum up, Compatibility improvement agent provided by the invention can obviously improve the compatibility of water reducer and cement and concrete,
And do not influence the strength development of concrete.Application of the supplementary cementitious material in cement and concrete can be promoted, is advantageous to build
The energy-saving and emission-reduction of industry, there is good market application foreground.
Claims (10)
1. the preparation method of the Compatibility improvement agent for cement grinding aid or cement water reducing agent, it is characterised in that：Including with
Lower step：
A, polyhydroxy compound and catalyst are added into reactor, it is -0.085~-0.095MPa to control vacuum, is warming up to 150
~230 DEG C；
B, 3~8h of dehydration, reaction terminate, and obtain the Compatibility improvement agent using ether polymer as main component；
Wherein：Polyhydroxy compound described in step A includes following two kinds of situations：
1) polyhydroxy compound is dihydric alcohol and trihydroxylic alcohol：The mol ratio of dihydric alcohol and trihydroxylic alcohol is：nDihydric alcohol:nTrihydroxylic alcohol=0.5
~2.0:1；
2) polyhydroxy compound is dihydric alcohol, trihydroxylic alcohol and polyalcohol；By weight percentage：Dihydric alcohol and trihydroxylic alcohol add up to
80~100%, polyalcohol 0~20%, polyalcohol is not zero；The mol ratio of dihydric alcohol and trihydroxylic alcohol is：nDihydric alcohol:nTrihydroxylic alcohol=0.5
~2.0:1.
2. the preparation side of the Compatibility improvement agent for being used for cement grinding aid or cement water reducing agent according to claim 1
Method, it is characterised in that：Dihydric alcohol described in step A is selected from ethylene glycol, propane diols, butanediol, diethanol amine, diisopropanolamine (DIPA), first
Base diethanol amine；Trihydroxylic alcohol described in step A is selected from glycerine, triethanolamine, triisopropanolamine, an ethanol diisopropanolamine, two
Ethanol monoisopropanolamine；Polyalcohol described in step A is selected from sorbierite, pentaerythrite, tetrahydroxyethyl-ethylene diamine, four hydroxypropyl second two
Amine.
3. the preparation side of the Compatibility improvement agent according to claim 1 for cement grinding aid or cement water reducing agent
Method, it is characterised in that：Catalyst described in step A is base catalyst.
4. the preparation side of the Compatibility improvement agent according to claim 3 for cement grinding aid or cement water reducing agent
Method, it is characterised in that：The base catalyst is sodium hydroxide, potassium hydroxide, metallic sodium, metallic potassium.
5. the preparation side of the Compatibility improvement agent according to claim 3 for cement grinding aid or cement water reducing agent
Method, it is characterised in that：The dosage of catalyst is calculated as 0.1~5.0% with polyhydroxy compound gross mass.
6. the preparation side of the Compatibility improvement agent according to claim 5 for cement grinding aid or cement water reducing agent
Method, it is characterised in that：The dosage of catalyst is calculated as 0.5~2.0% with polyhydroxy compound gross mass.
7. the preparation side of the Compatibility improvement agent according to claim 1 for cement grinding aid or cement water reducing agent
Method, it is characterised in that：The ether polymer molecular weight is 800-8000 dalton.
8. the preparation of the Compatibility improvement agent for being used for cement grinding aid or cement water reducing agent described in claim any one of 1-7
Method prepares the Compatibility improvement agent of gained.
9. application of the Compatibility improvement agent as cement grinding aid described in claim 8.
10. application of the Compatibility improvement agent as cement water reducing agent described in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779345.6A CN105461917B (en) | 2015-11-13 | 2015-11-13 | Compatibility improvement agent and its production and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779345.6A CN105461917B (en) | 2015-11-13 | 2015-11-13 | Compatibility improvement agent and its production and use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105461917A CN105461917A (en) | 2016-04-06 |
| CN105461917B true CN105461917B (en) | 2018-02-16 |
Family
ID=55600112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510779345.6A Active CN105461917B (en) | 2015-11-13 | 2015-11-13 | Compatibility improvement agent and its production and use |
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| Country | Link |
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| CN106186780B (en) * | 2016-07-05 | 2020-05-05 | 湖北鑫统领万象科技有限公司 | Grinding aid for improving compatibility of cement and water reducing agent |
| CN107117847B (en) * | 2017-05-18 | 2019-09-17 | 河南建筑材料研究设计院有限责任公司 | A kind of polyhydroxy alcohol ether compound cement grinding aid, preparation method and its manufactured cement |
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| CN103013094A (en) * | 2012-12-19 | 2013-04-03 | 四川大学 | Injectable type fast curing medical polyurethane compound and preparation method thereof |
| CN103601881A (en) * | 2013-11-18 | 2014-02-26 | 沈阳工业大学 | Functional polyether and method for preparing water reducer by using same |
| CN104529229A (en) * | 2014-12-11 | 2015-04-22 | 山东宏艺科技股份有限公司 | Enhanced cement grinding aid |
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| CN103013094A (en) * | 2012-12-19 | 2013-04-03 | 四川大学 | Injectable type fast curing medical polyurethane compound and preparation method thereof |
| CN103601881A (en) * | 2013-11-18 | 2014-02-26 | 沈阳工业大学 | Functional polyether and method for preparing water reducer by using same |
| CN104529229A (en) * | 2014-12-11 | 2015-04-22 | 山东宏艺科技股份有限公司 | Enhanced cement grinding aid |
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