CN105461917A - Compatibility improving agent and preparation method and application thereof - Google Patents
Compatibility improving agent and preparation method and application thereof Download PDFInfo
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- CN105461917A CN105461917A CN201510779345.6A CN201510779345A CN105461917A CN 105461917 A CN105461917 A CN 105461917A CN 201510779345 A CN201510779345 A CN 201510779345A CN 105461917 A CN105461917 A CN 105461917A
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- alcohol
- improvement agent
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- compatibility improvement
- compatibility
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- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000004568 cement Substances 0.000 claims abstract description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 239000003054 catalyst Substances 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- 238000006243 chemical reaction Methods 0.000 claims description 21
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 18
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 12
- 238000010792 warming Methods 0.000 claims description 11
- 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 9
- 229940043276 diisopropanolamine Drugs 0.000 claims description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 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 4
- MEIRRNXMZYDVDW-MQQKCMAXSA-N (2E,4E)-2,4-hexadien-1-ol Chemical compound C\C=C\C=C\CO MEIRRNXMZYDVDW-MQQKCMAXSA-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 3
- 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 claims description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 3
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 claims description 3
- 229940059574 pentaerithrityl Drugs 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- 229960004418 trolamine Drugs 0.000 claims description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 2
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 claims 1
- 229920005862 polyol Polymers 0.000 claims 1
- 150000003077 polyols Chemical class 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 9
- 239000011521 glass Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000035484 reaction time 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
- 239000010881 fly ash Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 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
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229960000907 methylthioninium chloride 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)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Polyethers (AREA)
Abstract
The present invention belongs to the field of chemical building materials, in particular to a compatibility improving agent and preparation method and application thereof. The compatibility improving agent can be used as a cement grinding aid and a concrete water reducer. The invention solves the technical problem by providing a novel preparation method of the compatibility improving agent. The method has the advantages of low ash, low cost, and simple production. The preparation method of the compatibility improving agent comprises the steps of: A, adding a hydroxyl group mixture and a catalyst to a reactor, controlling the degree of vacuum at -0.085 to -0.095MPa, heating to 150-230 DEG C; and B, conducting a dehydration reaction for 3-8 h to obtain a compatibility improving agent with alcohol ether polymer as the main component. The compatibility improving agent provided by the present invention significantly improves the compatibility of water reducing agent with cement and concrete, does not affect the strength development of concrete, can promote application of supplementary cementitious materials in cement and concrete, is conducive to the energy conservation and emission reduction in the construction industry, and has good market prospects.
Description
Technical field
The invention belongs to chemical building material field, be specifically related to a kind of Compatibility improvement agent and its production and use, this Compatibility improvement agent can be used as cement grinding aid and cement water reducing agent.
Background technology
Production cement and concrete adopt supplementary cementitious materials such as adding flyash, slag powders, limestone powder, natural volcanic ash, silicon ash, phosphorus slag powder to improve cement and concrete performance and to reduce production cost usually, but often the methylenum coeruleum adsorptive value of this part material is higher, make water reducer and cement and concrete consistency bad, cause water reducer volume excessive excessive with gradual loss, bring difficulty to engineering construction.
For solving above-mentioned compatibility problem, the present inventor provides a kind of Compatibility improvement agent, is used for improving water reducer and cement, concrete compatibility problem.
Summary of the invention
Technical problem solved by the invention is to provide a kind of preparation method of brand-new Compatibility improvement agent, and the method has that volume is low, cost is low, produce the advantages such as simple.
The preparation method of Compatibility improvement agent of the present invention comprises the following steps:
A, polyhydroxy compound and catalyzer are added reactor, control vacuum tightness is-0.085 ~-0.095MPa, is warming up to 150 ~ 230 DEG C;
B, dehydration reaction 3 ~ 8h, reaction terminates, and obtaining take ether polymer as the Compatibility improvement agent of main component.
In technique scheme, polyhydroxy compound described in steps A comprises following two kinds:
1) described polyhydroxy compound is dibasic alcohol and trivalent alcohol: the mol ratio of dibasic alcohol and trivalent alcohol is: n
dibasic alcohol: n
trivalent alcohol=0.5 ~ 2.0:1;
2) described polyhydroxy compound is dibasic alcohol, trivalent alcohol and polyvalent alcohol: wherein, by weight percentage: dibasic alcohol and trivalent alcohol total 80 ~ 100%, polyvalent alcohol 0 ~ 20%, and polyvalent alcohol is non-vanishing; The mol ratio of dibasic alcohol and trivalent alcohol is: n
dibasic alcohol: n
trivalent alcohol=0.5 ~ 2.0:1.
Wherein, dibasic alcohol can be: ethylene glycol, propylene glycol, butyleneglycol, diethanolamine, diisopropanolamine (DIPA), methyldiethanolamine etc.Trivalent alcohol can be: glycerol, trolamine, tri-isopropanolamine, an ethanol diisopropanolamine, di-alcohol monoisopropanolamine etc.Polyvalent alcohol can be: sorbyl alcohol, tetramethylolmethane, tetrahydroxyethyl-ethylene diamine, tetrahydroxypropyl ethylenediamine etc.
In technique scheme, catalyzer described in steps A is basic catalyst, is specifically as follows sodium hydroxide, potassium hydroxide, sodium Metal 99.5, potassium metal etc.The consumption of catalyzer counts 0.1 ~ 5.0% with polyhydroxy compound total mass, and particularly preferably 0.5 ~ 2.0%.
Wherein, if the temperature of reaction that steps A adopts is too low, speed of response is too slow, if temperature Tai Gaoyi causes the too much interlinkage of polymkeric substance and water-soluble poor, therefore temperature preferably 150 ~ 230 DEG C.
If the water of the too low generation of vacuum tightness that steps A adopts can not remove in time, speed of response can be made too slow; If oligomer removal is affected productive rate by vacuum tightness Tai Gaoyi; Therefore vacuum tightness preferably-0.085 ~-0.095MPa.
In technique scheme, the molecular weight of ether polymer described in step B is too little, and its dispersion effect is poor, improves consistency weak effect; If molecular weight is too large, too strong to cement, concrete delayed coagulation, cement, concrete normal condensation can be had influence on; Therefore the preferred 800-8000 dalton of the molecular weight of ether polymer.
Described in step B, the reaction times is oversize, and molecular weight is too large; Reaction times is too short, and molecular weight is too little; Therefore the preferred reaction time is 3 ~ 8h.
The Compatibility improvement agent of gained of the present invention, main component is the ether polymer having side chain.This ether polymer has space structure, can be preferentially adsorbed to supplementary cementitious material on the surface, reduces the absorption to water reducer, can improve water reducer and cement, concrete consistency to a great extent.Due to ether polymer molecular weight, comparatively water reducer molecular weight is low simultaneously, and therefore volume is also lower, is generally 0.01 ~ 0.05%, and use cost is also low.Therefore can be used as cement grinding aid and cement water reducing agent application.
To sum up, the present invention take ether polymer as the Compatibility improvement agent of main component, and can solve water reducer and cement, concrete compatibility problem, use cost is lower; Can be used as cement grinding aid and cement water reducing agent use.
Embodiment
In order to the synthetic method of Compatibility improvement agent is described, at laboratory synthetic sample.
Embodiment 1
200g ethylene glycol, 300g glycerol and 5g sodium hydroxide are added the glass stirring tank of 1L, reactor is evacuated to vacuum tightness and is-0.09MPa and keeps this vacuum tightness by unlatching vacuum pump.Be warming up to 200 DEG C, the water that reaction generates is collected in receptor by prolong, dehydration reaction 6h, and reaction terminates, and obtain Compatibility improvement agent 1, detection molecules amount is 2347 dalton.
Embodiment 2
100g propylene glycol, 300g mono-ethanol diisopropanolamine, 100g tetrahydroxypropyl ethylenediamine and 5g sodium hydroxide are added the glass stirring tank of 1L, reactor is evacuated to vacuum tightness and is-0.09MPa and keeps this vacuum tightness by unlatching vacuum pump.Be warming up to 210 DEG C, the water that reaction generates is collected in receptor by prolong, dehydration reaction 3h, and reaction terminates, and obtain Compatibility improvement agent 2, detection molecules amount is 5504 dalton.
Embodiment 3
200g diethanolamine, 250g di-alcohol monoisopropanolamine, 50g sorbyl alcohol and 5g sodium hydroxide are added the glass stirring tank of 1L, reactor is evacuated to vacuum tightness and is-0.09MPa and keeps this vacuum tightness by unlatching vacuum pump.Be warming up to 200 DEG C, the water that reaction generates is collected in receptor by prolong, dehydration reaction 4h, and reaction terminates, and obtain Compatibility improvement agent 3, detection molecules amount is 3175 dalton.
Embodiment 4
180g propylene glycol, 320g trolamine and 5g sodium hydroxide are added the glass stirring tank of 1L, reactor is evacuated to vacuum tightness and is-0.09MPa and keeps this vacuum tightness by unlatching vacuum pump.Be warming up to 160 DEG C, the water that reaction generates is collected in receptor by prolong, dehydration reaction 5h, and reaction terminates, and obtain Compatibility improvement agent 4, detection molecules amount is 2048 dalton.
Embodiment 5
220g methyldiethanolamine, 280g glycerol and 5g sodium hydroxide are added the glass stirring tank of 1L, reactor is evacuated to vacuum tightness and is-0.09MPa and keeps this vacuum tightness by unlatching vacuum pump.Be warming up to 180 DEG C, the water that reaction generates is collected in receptor by prolong, dehydration reaction 5h, and reaction terminates, and obtain Compatibility improvement agent 5, detection molecules amount is 959 dalton.
Embodiment 6
240g diisopropanolamine (DIPA), 180g di-alcohol monoisopropanolamine, 80g tetrahydroxyethyl-ethylene diamine and 5g sodium hydroxide are added the glass stirring tank of 1L, reactor is evacuated to vacuum tightness and is-0.09MPa and keeps this vacuum tightness by unlatching vacuum pump.Be warming up to 200 DEG C, the water that reaction generates is collected in receptor by prolong, dehydration reaction 7h, and reaction terminates, and obtain Compatibility improvement agent 6, detection molecules amount is 6773 dalton.
Embodiment 7
170g propylene glycol, 330g glycerol and 5g sodium hydroxide are added the glass stirring tank of 1L, reactor is evacuated to vacuum tightness and is-0.09MPa and keeps this vacuum tightness by unlatching vacuum pump.Be warming up to 150 DEG C, the water that reaction generates is collected in receptor by prolong, dehydration reaction 8h, and reaction terminates, and obtain Compatibility improvement agent 7, detection molecules amount is 1044 dalton.
Embodiment 8
100g propylene glycol, 360g di-alcohol monoisopropanolamine, 40g tetramethylolmethane and 5g sodium hydroxide are added the glass stirring tank of 1L, reactor is evacuated to vacuum tightness and is-0.09MPa and keeps this vacuum tightness by unlatching vacuum pump.Be warming up to 220 DEG C, the water that reaction generates is collected in receptor by prolong, dehydration reaction 6h, and reaction terminates, and obtain Compatibility improvement agent 8, detection molecules amount is 6373 dalton.
Embodiment 9
160g diethanolamine, 340g tri-isopropanolamine and 5g sodium hydroxide are added the glass stirring tank of 1L, reactor is evacuated to vacuum tightness and is-0.09MPa and keeps this vacuum tightness by unlatching vacuum pump.Be warming up to 180 DEG C, the water that reaction generates is collected in receptor by prolong, dehydration reaction 6h, and reaction terminates, and obtain Compatibility improvement agent 9, detection molecules amount is 1173 dalton.
In order to the beneficial effect of Compatibility improvement agent of the present invention is described, concrete optimum contrast is done in laboratory, and proportioning is as following table 1, and workability of concrete and ultimate compression strength are in table 2.
Table 1 concrete mix unit: kg/m
3
| Group number | Cement | Breeze | 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 |
Table 2 workability of concrete and ultimate compression strength
Visible by above-described embodiment, the polyhydroxy compound in preparation method of the present invention adopts following two kinds of raw material fit systems all can realize basic improvement water reducer and the effect of cement and concrete consistency:
1) described polyhydroxy compound is dibasic alcohol and trivalent alcohol: the mol ratio of dibasic alcohol and trivalent alcohol is: n
dibasic alcohol: n
trivalent alcohol=0.5 ~ 2.0:1;
2) described polyhydroxy compound is dibasic alcohol, trivalent alcohol and polyvalent alcohol; Dibasic alcohol and trivalent alcohol total 80 ~ 100%, polyvalent alcohol 0 ~ 20%, polyvalent alcohol is non-vanishing; The mol ratio of dibasic alcohol and trivalent alcohol is: n
dibasic alcohol: n
trivalent alcohol=0.5 ~ 2.0:1.
Conclusion: Compatibility improvement agent prepared by the present invention just can meet application requiring under the volume of 0.03%, obviously can improve water reducer and cement and concrete consistency, and not affect concrete strength development.
To sum up, Compatibility improvement agent provided by the invention obviously can improve water reducer and cement and concrete consistency, and does not affect concrete strength development.The application of supplementary cementitious material in cement and concrete can be promoted, be conducive to the energy-saving and emission-reduction of construction industry, have good market application foreground.
Claims (10)
1. the preparation method of Compatibility improvement agent, is characterized in that: comprise the following steps:
A, polyhydroxy compound and catalyzer are added reactor, control vacuum tightness is-0.085 ~-0.095MPa, is warming up to 150 ~ 230 DEG C;
B, dehydration reaction 3 ~ 8h, reaction terminates, and obtaining take ether polymer as the Compatibility improvement agent of main component.
2. the preparation method of Compatibility improvement agent according to claim 1, is characterized in that: polyhydroxy compound described in steps A comprises following two kinds of situations:
1) described polyhydroxy compound is dibasic alcohol and trivalent alcohol: the mol ratio of dibasic alcohol and trivalent alcohol is: n
dibasic alcohol: n
trivalent alcohol=0.5 ~ 2.0:1;
2) described polyhydroxy compound is dibasic alcohol, trivalent alcohol and polyvalent alcohol; By weight percentage: dibasic alcohol and trivalent alcohol total 80 ~ 100%, polyvalent alcohol 0 ~ 20%, polyvalent alcohol is non-vanishing; The mol ratio of dibasic alcohol and trivalent alcohol is: n
dibasic alcohol: n
trivalent alcohol=0.5 ~ 2.0:1.
3. the preparation method of Compatibility improvement agent according to claim 2, is characterized in that: dibasic alcohol described in steps A is selected from ethylene glycol, propylene glycol, butyleneglycol, diethanolamine, diisopropanolamine (DIPA), methyldiethanolamine; Trivalent alcohol described in steps A is selected from glycerol, trolamine, tri-isopropanolamine, an ethanol diisopropanolamine, di-alcohol monoisopropanolamine; Polyvalent alcohol described in steps A is selected from sorbyl alcohol, tetramethylolmethane, tetrahydroxyethyl-ethylene diamine, tetrahydroxypropyl ethylenediamine.
4. the preparation method of Compatibility improvement agent according to claim 1, is characterized in that: catalyzer described in steps A is basic catalyst.
5. the preparation method of Compatibility improvement agent according to claim 4, is characterized in that: described basic catalyst is sodium hydroxide, potassium hydroxide, sodium Metal 99.5, potassium metal.
6. the preparation method of Compatibility improvement agent according to claim 4, is characterized in that: the consumption of catalyzer is to mix hydramine and polyol total mass counts 0.1 ~ 5.0%; Particularly preferably 0.5 ~ 2.0%.
7. the preparation method of Compatibility improvement agent according to claim 1, is characterized in that: described ether polymer molecular weight is 800-8000 dalton.
8. the preparation method of the Compatibility improvement agent described in any one of claim 1-7 prepares the Compatibility improvement agent of gained.
9. Compatibility improvement agent according to claim 8 is as the application of cement grinding aid.
10. Compatibility improvement agent according to claim 8 is as the application of cement water reducing agent.
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| CN201510779345.6A CN105461917B (en) | 2015-11-13 | 2015-11-13 | Compatibility improvement agent and its production and use |
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| CN105461917B CN105461917B (en) | 2018-02-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186780A (en) * | 2016-07-05 | 2016-12-07 | 湖北鑫统领万象科技有限公司 | A kind of grinding aid improving cement and water reducer compatibility |
| CN107117847A (en) * | 2017-05-18 | 2017-09-01 | 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 cement being made |
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106186780A (en) * | 2016-07-05 | 2016-12-07 | 湖北鑫统领万象科技有限公司 | A kind of grinding aid improving cement and water reducer compatibility |
| 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 |
| CN107117847A (en) * | 2017-05-18 | 2017-09-01 | 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 cement being made |
| 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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|---|---|
| CN105461917B (en) | 2018-02-16 |
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