CN109942758A - A kind of concrete polycarboxylate water-reducer quasi-mode plate polymerization - Google Patents
A kind of concrete polycarboxylate water-reducer quasi-mode plate polymerization Download PDFInfo
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- CN109942758A CN109942758A CN201711385382.4A CN201711385382A CN109942758A CN 109942758 A CN109942758 A CN 109942758A CN 201711385382 A CN201711385382 A CN 201711385382A CN 109942758 A CN109942758 A CN 109942758A
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- polycarboxylate water
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 34
- 229920005646 polycarboxylate Polymers 0.000 title claims abstract description 25
- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 23
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 23
- 239000000243 solution Substances 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 19
- PUGOMSLRUSTQGV-UHFFFAOYSA-N 2,3-di(prop-2-enoyloxy)propyl prop-2-enoate Chemical compound C=CC(=O)OCC(OC(=O)C=C)COC(=O)C=C PUGOMSLRUSTQGV-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003999 initiator Substances 0.000 claims abstract description 5
- 239000007864 aqueous solution Substances 0.000 claims abstract description 4
- 230000002045 lasting effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 13
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- 235000003642 hunger Nutrition 0.000 claims 1
- OWPUOLBODXJOKH-UHFFFAOYSA-N 2,3-dihydroxypropyl prop-2-enoate Chemical compound OCC(O)COC(=O)C=C OWPUOLBODXJOKH-UHFFFAOYSA-N 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 11
- 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 description 8
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 8
- 238000009835 boiling Methods 0.000 description 8
- 239000011734 sodium Substances 0.000 description 8
- 229910052708 sodium Inorganic materials 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
- 235000006408 oxalic acid Nutrition 0.000 description 5
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical group CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 4
- XEEYSDHEOQHCDA-UHFFFAOYSA-N 2-methylprop-2-ene-1-sulfonic acid Chemical compound CC(=C)CS(O)(=O)=O XEEYSDHEOQHCDA-UHFFFAOYSA-N 0.000 description 4
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000011790 ferrous sulphate Substances 0.000 description 4
- 235000003891 ferrous sulphate Nutrition 0.000 description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 4
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 4
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 239000012286 potassium permanganate Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- PMNLUUOXGOOLSP-UHFFFAOYSA-N 2-mercaptopropanoic acid Chemical compound CC(S)C(O)=O PMNLUUOXGOOLSP-UHFFFAOYSA-N 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- JHUFGBSGINLPOW-UHFFFAOYSA-N 3-chloro-4-(trifluoromethoxy)benzoyl cyanide Chemical compound FC(F)(F)OC1=CC=C(C(=O)C#N)C=C1Cl JHUFGBSGINLPOW-UHFFFAOYSA-N 0.000 description 2
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 125000001047 cyclobutenyl group Chemical group C1(=CCC1)* 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 2
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 2
- DZSVIVLGBJKQAP-UHFFFAOYSA-N 1-(2-methyl-5-propan-2-ylcyclohex-2-en-1-yl)propan-1-one Chemical compound CCC(=O)C1CC(C(C)C)CC=C1C DZSVIVLGBJKQAP-UHFFFAOYSA-N 0.000 description 1
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 polyoxy Polymers 0.000 description 1
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- KOUKXHPPRFNWPP-UHFFFAOYSA-N pyrazine-2,5-dicarboxylic acid;hydrate Chemical compound O.OC(=O)C1=CN=C(C(O)=O)C=N1 KOUKXHPPRFNWPP-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of concrete polycarboxylate water-reducer quasi-mode plate polymerizations.The following steps are included: unsaturated polyoxyethylene ether is dissolved in the water by a., stir evenly；B. molecular weight regulator and initiator is soluble in water, it is uniformly mixed, together with glycerol tri-acrylate, is added dropwise in the aqueous solution of unsaturated polyoxyethylene ether, makes its polymerization, be stirred continuously, until all dripping；C. then lasting stirring a period of time is added sodium hydroxide solution and heats, it is made to cure and hydrolyze.Polycarboxylate water-reducer of the invention replaces acrylic acid using glyceryl acrylate, the polycarboxylate water-reducer molecule that the high grafting density of early formation can be reduced makes to connect its density more evenly, and products molecule structure is more regular, effective component is higher, to obtain higher water-reducing rate.
Description
Technical field
The present invention relates to a kind of concrete polycarboxylate water-reducer preparation method, in particular to a kind of preparation structure is regular, connects
The quasi-mode plate polymerization of the concrete polycarboxylate water-reducer of branch even density.
Background technique
With being in full swing for China's infrastructure, the concrete amount in the building such as railway, highway, bridge increases
Add.Meanwhile the production of durable, weather-proof, high-strength contour performance concrete, be increasingly dependent on high-performance water reducing agent, among these with
Railway construction is taken the lead, and the whole nation popularizes application, exactly high performance water reducing agent of polyocarboxy acid in an all-round way.
Polycarboxylate water-reducer is to be polymerize by the unsaturated fatty acid of single functionality with unsaturated polyoxyethylene ether, obtains
Highly -branched macromolecule dispersing agent.Compared with previous water-reducing agent, polycarboxylate water-reducer change it is previous be gradually polymerized to it is chain poly-
It closes, this polymerization reaction does not have small molecule generation, do not generate the three wastes substantially, and simultaneous reactions are very fast, readily satisfy supply requirement.
But current polycarboxylate water-reducer technique, be using monofunctional monomer directly with unsaturated polyoxyethylene ether
Copolymerization, grafting density is uneven, causes in product containing general point invalid components.
Summary of the invention
Technical problem to be solved by the present invention lies in the grafting density for solving unsaturated polyoxyethylene ether is uneven.
In order to solve the above technical problems, the present invention provides a kind of concrete polycarboxylate water-reducer quasi-mode plate polymerization,
The following steps are included: unsaturated polyoxyethylene ether is dissolved in the water by a., stir evenly；B. by molecular weight regulator and initiation
Agent is soluble in water, is uniformly mixed, together with glycerol tri-acrylate, is added dropwise in the aqueous solution of unsaturated polyoxyethylene ether, makes
It polymerize, and is stirred continuously, until all dripping；C. then lasting stirring a period of time is added sodium hydroxide solution and adds
Heat makes it cure and hydrolyze.
The concrete polycarboxylate water-reducer quasi-mode plate polymerization, in step a, the unsaturated polyoxy second
Alkene ether can be preferably alkyl polyoxyethylene ether, and alkyl therein can be with 1~3 carbon-carbon double bond, and carbon number is 2~10
Alkyl, preferably vinyl, methyl ethylene, propyl- 2- alkenyl, 1- methyl propyl- 2- alkenyl, 2- methyl propyl- 2- alkenyl, 2-
Methyl butyl- 1,3- dialkylene.
The concrete polycarboxylate water-reducer quasi-mode plate polymerization, in step a, the amount of added water is described
0.8~1.2 times of unsaturated polyoxyethylene ether quality.
The concrete polycarboxylate water-reducer quasi-mode plate polymerization, in stepb, the molecular weight regulator can
To be preferably that all chain transfers such as methallylsulfonic acid sodium, Sodium Allyl Sulfonate, thioacetic acid, mercaptopropionic acid are more than
The chain-transferring agent of isopropanol.
The concrete polycarboxylate water-reducer quasi-mode plate polymerization, in stepb, the initiator can be preferred
It is greater than or equal to the oxidant and oxalic acid, sulfurous acid of hydrogen peroxide for all oxidisability such as hydrogen peroxide, ammonium persulfate, Peracetic acid
All reproducibilities such as sodium, sodium hydrogensulfite, sodium thiosulfate, sodium hypophosphite, sodium formaldehyde sulfoxylate, ferrous sulfate are greater than or equal to sulphur
The combination of sour ferrous reducing agent.
The process of polymerization is added dropwise in solvent in the step b, and the comonomer that reducing agent and remainder is added dropwise can be 1
It is dripped in~3 hours.
The concrete polycarboxylate water-reducer quasi-mode plate polymerization, in stepb, the glycerol tri-acrylate
Dosage, be the 10~30% of the unsaturated polyoxyethylene ether quality.
The concrete polycarboxylate water-reducer quasi-mode plate polymerization, the sodium hydroxide solution being added in step c,
Concentration can be preferably 40%, and the quality of sodium hydroxide contained therein, equal to glycerol tri-acrylate quality 30~
35%.
Neutralization and maturing process in the step c, can stir 1~2 hour, sodium hydroxide solution is then added, and
The pH value of product is continued stirring until not higher than 8.
Polycarboxylate water-reducer of the invention uses quasi-mode plate polymerization to beneficial the having the technical effect that of the present invention.Its feature
It is, replaces monofunctional monomer using the glyceryl acrylate of three-functionality-degree, it is possible to reduce the high grafting density of early formation
Polycarboxylate water-reducer molecule makes its grafting density more evenly, and molecular structure is more regular, and effective component is higher, to obtain higher
Water-reducing rate.
Specific embodiment
The present invention provides a kind of concrete polycarboxylate water-reducer quasi-mode plate polymerizations, comprising the following steps:
A. unsaturated polyoxyethylene ether is dissolved in the water, is stirred evenly；B. molecular weight regulator and initiator are dissolved in
It in water, is uniformly mixed, together with glycerol tri-acrylate, is added dropwise in the aqueous solution of unsaturated polyoxyethylene ether, keep it poly-
It closes, is stirred continuously, until all dripping；C. then lasting stirring a period of time is added sodium hydroxide solution and heats, makes
It cures and hydrolyzes.
In step a, the unsaturated polyoxyethylene ether is preferably alkyl polyoxyethylene ether, and alkyl therein is band
There are 1~3 carbon-carbon double bond, the alkyl that carbon number is 2~10.
In stepb, the molecular weight regulator is preferably the chain-transferring agent that chain transfer is more than isopropanol.
In stepb, the chain transfer is more than that the chain-transferring agent of isopropanol is preferably methallylsulfonic acid
Sodium, thioglycolic acid, thio lactic acid and/or vinyl acetate.
In step a, the initiator can be all oxidisability such as hydrogen peroxide, ammonium persulfate, Peracetic acid and be greater than
Or the oxidant equal to hydrogen peroxide, with oxalic acid, sodium sulfite, sodium hydrogensulfite, sodium thiosulfate, sodium hypophosphite, hang it is white
All reproducibilities such as block, ferrous sulfate are greater than or equal to the combination of the reducing agent of ferrous sulfate
In stepb, the process of polymerization is added dropwise, dropwise addition process is preferably added dropwise in 1~3 hour.
The sodium hydroxide solution being added in step c, preferably its concentration are 35%~45%.
The step c whipping process preferably stirs material 1~2 hour.
Carry out the embodiment that the present invention will be described in detail below with reference to table and specific embodiment, whereby such as to the present invention
What applied technology method solves technical problem, and the realization process for reaching technical effect can be fully understood and implemented.
In the present invention, using the glycerol tri-acrylate of three-functionality-degree, the comonomer of monomer but degree of functionality, to increase
The uniformity of addition polymerization carboxylic acid water reducer grafting density, the polycarboxylate water-reducer envisioned.
Raw material parts is mass ratio in all embodiments.
Embodiment 1:
At 30 DEG C, 60 parts of iso-amylene polyoxyethylene ether, water 60 are added in the four-hole boiling flask equipped with thermometer, blender
Part, it is stirred continuously so that it is dissolved in the water；0.8 part of methallylsulfonic acid sodium is taken, 0.6 part of ammonium persulfate, is dissolved in 10 parts
Water, it is together with 15 parts of glycerol tri-acrylate, uniform to be added in four-hole bottle in 2~3 hours, around here temperature can slightly on
It rises, controls it no more than 40 DEG C.Continue stirring 80 minutes after adding, 5 parts of sodium hydroxide solution of 40% are added.To pH
Value is lower than 8 getting the products.
Embodiment 2:
At 25 DEG C, 60 parts of iso-amylene polyoxyethylene ether, water 50 are added in the four-hole boiling flask equipped with thermometer, blender
Part, it is stirred continuously so that it is dissolved in the water；Take 0.8 part of methallylsulfonic acid sodium, 0.8 part of ammonium persulfate, sodium formaldehyde sulfoxylate
It 0.5 part, is dissolved in 10 parts of water, it is together with 15 parts of glycerol tri-acrylate, uniform to be added in four-hole bottle in 2~3 hours,
Temperature can slightly rise around here, control it no more than 40 DEG C.Continue stirring 80 minutes after adding, 40% hydrogen-oxygen is added
Change 5 parts of sodium solution.It is lower than 8 getting the products to pH value.
Embodiment 3:
At 20 DEG C, 60 parts of iso-amylene polyoxyethylene ether, water 60 are added in the four-hole boiling flask equipped with thermometer, blender
Part, it is stirred continuously so that it is dissolved in the water；0.2 part of mercaptopropionic acid is taken, 0.5 part of potassium permanganate, 0.3 part of oxalic acid is taken, is dissolved in
It is together with 15 parts of glycerol tri-acrylate, uniform to be added in four-hole bottle in 2~3 hours in 10 parts of water, temperature meeting around here
Slightly rise, controls it no more than 40 DEG C.Continue stirring 100 minutes after adding, 40% sodium hydroxide solution 5 is added
Part.It is lower than 8 getting the products to pH value.
Embodiment 4:
At 15 DEG C, 60 parts of iso-amylene polyoxyethylene ether, water 60 are added in the four-hole boiling flask equipped with thermometer, blender
Part, it is stirred continuously so that it is dissolved in the water；Take 0.15 part of mercaptopropionic acid, it is 1 part of potassium bichromate, 0.4 part of ferrous sulfate, molten
It is together with 15 parts of glycerol tri-acrylate, uniform to be added in four-hole bottle in 2~3 hours in 10 parts of water, temperature around here
It can slightly rise, control it no more than 40 DEG C.Continue stirring 80 minutes after adding, 40% sodium hydroxide solution 5 is added
Part.It is lower than 8 getting the products to pH value
Embodiment 5:
At 30 DEG C, 70 parts of allyl polyethenoxy ether, water 60 are added in the four-hole boiling flask equipped with thermometer, blender
Part, it is stirred continuously so that it is dissolved in the water；Take 1 part of Sodium Allyl Sulfonate, 0.6 part of sodium formaldehyde sulfoxylate, hydrogen peroxide (30%) 1.4
Part, it is dissolved in 10 parts of water, it is together with 15 parts of glycerol tri-acrylate, uniform to be added in four-hole bottle in 2~3 hours, this
Between temperature can slightly rise, control it no more than 40 DEG C.Continue stirring 80 minutes after adding, 40% hydroxide is added
5 parts of sodium solution.It is lower than 8 getting the products to pH value.
Embodiment 6:
At 20 DEG C, 70 parts of allyl polyethenoxy ether, water 70 are added in the four-hole boiling flask equipped with thermometer, blender
Part, it is stirred continuously so that it is dissolved in the water；Take 0.1 part of vinyl acetate, (30%) 1.7 part of hydrogen peroxide, sodium formaldehyde sulfoxylate 0.8
Part, it is dissolved in 10 parts of water, it is together with 10 parts of glycerol tri-acrylate, uniform to be added in four-hole bottle in 2~3 hours, this
Between temperature can slightly rise, control it no more than 40 DEG C.Continue stirring 120 minutes after adding, 40% hydroxide is added
3.5 parts of sodium solution.It is lower than 8 getting the products to pH value.
Embodiment 7:
At 20 DEG C, 60 parts of cyclobutenyl polyoxyethylene ether, water 60 are added in the four-hole boiling flask equipped with thermometer, blender
Part, it is stirred continuously so that it is dissolved in the water；1.2 parts of vinyl acetate are taken, 0.5 part of potassium permanganate, 0.3 part of oxalic acid, is dissolved in
It is together with 12 parts of glycerol tri-acrylate, uniform to be added in four-hole bottle in 2~3 hours in 10 parts of water, temperature meeting around here
Slightly rise, controls it no more than 40 DEG C.Continue stirring 100 minutes after adding, 40% sodium hydroxide solution 4 is added
Part.It is lower than 8 getting the products to pH value.
Embodiment 8:
At 10 DEG C, 70 parts of cyclobutenyl polyoxyethylene ether, water 70 are added in the four-hole boiling flask equipped with thermometer, blender
Part, it is stirred continuously so that it is dissolved in the water；0.7 part of 2- acrylamide-2-methylpro panesulfonic acid is taken, potassium permanganate 0.8
Part, 0.4 part of oxalic acid is taken, is dissolved in 10 parts of water, it is together with 15 parts of glycerol tri-acrylate, uniform to be added in 2~3 hours
In four-hole bottle, temperature can slightly rise around here, control it no more than 40 DEG C.Continue stirring 120 minutes after adding, is added
5 parts of 40% sodium hydroxide solution.It is lower than 8 getting the products to pH value.
Net slurry comparative experiments:
Lafarge reference cement 300g, water 86g, water-reducing agent concentration are 20%, and experimental result see the table below:
Concrete experiments:
Lafarge reference cement 300g, water-reducing agent concentration are 20%, the respectively sodium gluconate of compounding 2% and 0.05%
Defoaming agent, sandstone containing mud be no more than 3%, it is not aqueous.Match ratio C:S:G:W=360:851:989:190, experimental result are seen below
Table:
All above-mentioned primary implementation methods for this intellectual property, there is no setting limitations to implement this otherwise
Kind new method.Those skilled in the art will utilize this important information, modify above content, to realize similar execution feelings
Condition.But it is all based on modification of the invention or transformation new method, belong to the right of reservation.
The above described is only a preferred embodiment of the present invention, be not that the invention has other forms of limitations,
Any person skilled in the art is changed or is modified as equivalent variations possibly also with the technology contents of the disclosure above
Equivalent embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (4)
1. a kind of concrete polycarboxylate water-reducer quasi-mode plate polymerization, which comprises the following steps:
A. unsaturated polyoxyethylene ether is dissolved in the water, is stirred evenly；
B. molecular weight regulator and initiator is soluble in water, it is uniformly mixed, together with glycerol tri-acrylate, is added dropwise to insatiable hunger
In the aqueous solution of polyoxyethylene ether, make its polymerization, be stirred continuously, until all dripping；
C. then lasting stirring a period of time is added sodium hydroxide solution and heats, it is made to cure and hydrolyze.
2. concrete polycarboxylate water-reducer quasi-mode plate polymerization according to claim 1, which is characterized in that in step b
In, the dosage of the glycerol tri-acrylate is the 10~30% of the unsaturated polyoxyethylene ether quality.
3. concrete polycarboxylate water-reducer quasi-mode plate polymerization according to claim 1, which is characterized in that in step c,
The dosage of the sodium hydroxide solution is the 30~30% of the glycerol tri-acrylate quality.
4. concrete polycarboxylate water-reducer quasi-mode plate polymerization according to claim 1, which is characterized in that in step c,
The neutralization and maturing process can stir 1~2 hour, sodium hydroxide solution then be added, and continue stirring until product
PH value is not higher than 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN112661898A (en) * | 2019-10-16 | 2021-04-16 | 中冶建筑研究总院有限公司 | Synthesis method of concrete state regulator |
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| CN104479066A (en) * | 2014-12-01 | 2015-04-01 | 中建商品混凝土有限公司 | Concrete viscosity adjusting agent and preparation method thereof |
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| CN106946492A (en) * | 2017-03-01 | 2017-07-14 | 中建商品混凝土有限公司 | A kind of non-dispersible underwater concrete additive and preparation method thereof, application |
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Application publication date: 20190628 |