CN105130269A - High-water-reduction high-early-strength type polycarboxylic acid water reducing agent and pyrogen-free preparation method thereof - Google Patents
High-water-reduction high-early-strength type polycarboxylic acid water reducing agent and pyrogen-free preparation method thereof Download PDFInfo
- Publication number
- CN105130269A CN105130269A CN201510516374.3A CN201510516374A CN105130269A CN 105130269 A CN105130269 A CN 105130269A CN 201510516374 A CN201510516374 A CN 201510516374A CN 105130269 A CN105130269 A CN 105130269A
- Authority
- CN
- China
- Prior art keywords
- polycarboxylic acids
- strength type
- early strength
- type polycarboxylic
- acids dehydragent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002253 acid Substances 0.000 title claims abstract description 117
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 title abstract description 45
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 14
- 239000012986 chain transfer agent Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 150000007513 acids Chemical class 0.000 claims description 91
- 239000000463 material Substances 0.000 claims description 78
- 230000003467 diminishing effect Effects 0.000 claims description 56
- 239000012452 mother liquor Substances 0.000 claims description 48
- 238000003756 stirring Methods 0.000 claims description 38
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 17
- 229960004418 trolamine Drugs 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 16
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Substances CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- 239000013530 defoamer Substances 0.000 claims description 12
- 230000002829 reductive effect Effects 0.000 claims description 10
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 9
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 8
- JPAOMENBKRZQDR-UHFFFAOYSA-N CC=CC.[Na] Chemical compound CC=CC.[Na] JPAOMENBKRZQDR-UHFFFAOYSA-N 0.000 claims description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- 235000011152 sodium sulphate Nutrition 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- 239000004160 Ammonium persulphate Substances 0.000 claims description 4
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 4
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 3
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 claims description 3
- 239000004159 Potassium persulphate Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000012670 alkaline solution Substances 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- 235000019394 potassium persulphate Nutrition 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 2
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 2
- 239000011790 ferrous sulphate Substances 0.000 claims description 2
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 2
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004567 concrete Substances 0.000 abstract description 30
- 238000000034 method Methods 0.000 abstract description 19
- 239000004568 cement Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000007800 oxidant agent Substances 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000004566 building material Substances 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 229940051841 polyoxyethylene ether Drugs 0.000 abstract 1
- 229920000056 polyoxyethylene ether Polymers 0.000 abstract 1
- 239000002510 pyrogen Substances 0.000 abstract 1
- 239000012966 redox initiator Substances 0.000 abstract 1
- 230000007306 turnover Effects 0.000 abstract 1
- 239000008367 deionised water Substances 0.000 description 40
- 229910021641 deionized water Inorganic materials 0.000 description 40
- 239000000203 mixture Substances 0.000 description 37
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 30
- 229920005646 polycarboxylate Polymers 0.000 description 15
- 238000006116 polymerization reaction Methods 0.000 description 11
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 10
- 229920001296 polysiloxane Polymers 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 239000011521 glass Substances 0.000 description 9
- 230000004044 response Effects 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- PMNLUUOXGOOLSP-UHFFFAOYSA-N 2-mercaptopropanoic acid Chemical compound CC(S)C(O)=O PMNLUUOXGOOLSP-UHFFFAOYSA-N 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 239000000178 monomer Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 238000011415 microwave curing Methods 0.000 description 2
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- LDHQCZJRKDOVOX-UHFFFAOYSA-N 2-butenoic acid Chemical compound CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- -1 retardant Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of concrete admixture in building materials, and provides a high-water-reduction high-early-strength type polycarboxylic acid water reducing agent and a pyrogen-free preparation method thereof. Firstly, a high-early-strength type polycarboxylic acid water reducing agent mother liquid is obtained by using a redox initiation system under a pyrogen-free condition, then an optimized early-strength component, a defoaming agent and water are added, and compounding is carried out to obtain the product, wherein the high-early-strength type polycarboxylic acid water reducing agent mother liquid is prepared from unsaturated polyoxyethylene ether (MW=3800-4000), a chain transfer agent, unsaturated acid and/or an unsaturated acid derivative, an oxidant, a reductant and water. The water reducing agent has low mixing amount, and has the advantages of high water reducing rate, good early strength effect, good cement adaptability and the like; moreover, the process does not need additional pyrogen, can be carried out at normal temperature, has less equipment investment and low cost, and is suitable for large-area popularization and application. The water reducing agent can greatly improve the early strength of concrete, improves the template turnover speed, improves the work efficiency, is beneficial for improving constructional engineering quality and improving the production efficiency, reduces energy consumption, and reduces construction costs.
Description
Technical field
The present invention relates to the reinforcement of concrete admixture technical field in material of construction, particularly relate to a kind of high diminishing height high-early strength type polycarboxylic acids dehydragent and without thermal source method for making.
Background technology
Culture's material that in the concrete world today, consumption is maximum.Concrete admixture is before mixing concrete mixing or mixes to improve the material of concrete performance in mix process, can effectively improve concrete performance, become material indispensable in concrete.
Modern age, concrete admixture originated from early 1930s, experienced by s-generation high efficiency water reducing agent that first-generation ordinary water-reducing agent that wooden calcium is representative, naphthalene system and trimeric cyanamide are representative, third generation high-performance water reducing agent three phases that polycarboxylic acid series is representative, the developing history of existing more than 80 year so far.Water reducer, slump retaining agent, accelerating chemicals, retardant, defoamer, hardening accelerator etc. is mainly divided into by the function of admixture.Polycarboxylate water-reducer uses more and more extensive in the engineering of China as third generation water reducer, relative to water reducers such as naphthalene system and melamine series, its dissemination is effective, and the hold-time is long, and concrete can be made to have good serviceability.
After mixing polycarboxylate water-reducer, concrete can be made to have good serviceability and mechanical property, at structure durabilities such as high-speed railways, it requires that in high engineering, advantage is particularly outstanding.Its excellent performance derives from its special comb shaped molecular structure, main chain is adsorbed in cement particle surface, forms firmly adsorption layer, is that fine hair shape stretches in aqueous by polyethylene oxide side chains, form strong sterically hindered effect, make cement granules obtain significant dissemination.But, coventional type polycarboxylate water-reducer significantly can delay the aquation of cement, especially under cryogenic, early strength slower development, common polycarboxylate water-reducer is constructed in the winter time and the use of cold environment is restricted, also constrain and requiring the use in early strong engineering and concrete prefabricated element.
During concrete prefabricated element is produced, in order to increase production efficiency, improve template turn-around speed, not only require that polycarboxylate water-reducer has good diminishing dissemination, also requirement can improve early age strength of concrete; In addition, in order to accelerate speed of application under cold condition, also require that concrete has desirable epistasis energy morning.
At present, improve early age strength of concrete and have three kinds of main paties: (1) uses extraordinary strength cement and increases cement consumption (output and price is restricted can not generally adopt); (2) adopt vapor cure, even the technological approaches of microwave curing improves early age strength of concrete as far as possible.(be unfavorable for the raising of volume stability of concrete and weather resistance, vapor cure and microwave curing are unfavorable for environmental protection, energy-conservation requirement); (3) early-strength admixture (working method is simple, with low cost) is used.
The mode that early-strength admixture adopts naphthalene water reducer (or melamine system water reducer) or common poly carboxylic acid series water reducer and hardening accelerator (trolamine, sodium sulfate, sodium-chlor etc.) composite usually, but there is with hardening accelerator is composite the shortcoming that concrete plasticity is poor, slump-loss is large that water-reducing rate is not high enough, prepare in naphthalene water reducer (or melamine system water reducer); Adopt common poly carboxylic acid series water reducer and hardening accelerator (trolamine, sodium sulfate, sodium-chlor etc.) composite, there is the shortcomings such as unstable product quality, easily layering.
Patent CN201410220236 utilizes isobutene alcohol Soxylat A 25-7 (HPEG), vinylformic acid (AA), 2-acrylamide-2-methyl propane sulfonic (AMPS) polymerization obtains a kind of high-early strength type polycarboxylic acids dehydragent, but needs to synthesize at the temperature of 40-45 DEG C; The modification polyoxyalkylenes ether of patent CN201110291956 utilization containing unsaturated double-bond, (methyl) vinylformic acid, the sulfonate of unsaturated double-bond, acrylamide four kinds of monomers are under molecular weight regulator existence condition, carry out aqueous solution copolymerization by free radical initiation and obtain high-early strength type polycarboxylic acids dehydragent, but needing to synthesize at the temperature of 50-70 DEG C.
In the high-early strength type polycarboxylic acids dehydragent synthetic method that above-mentioned patent is announced, all need steam or boiler heating, add energy consumption and facility investment, production cost is high, is unfavorable for energy-saving and emission-reduction and reduces costs.
Summary of the invention
In order to overcome above-mentioned defect, invention has been and study extensively and profoundly, by being main macromonomer with unsaturated Soxylat A 25-7, design for poly carboxylic acid series water reducer comb shaped molecular structure, by selecting suitable polymeric monomer and polymerization technique, adjustment molecular architecture and functional group densities and kind, synthesis high-early strength type polycarboxylic acids dehydragent mother liquor, compound, with subsidiary material such as various high-quality accelerating component, defoamers, obtains high diminishing height early-strength type polycarboxylic admixture.Make full use of the high high water reducing rate of diminishing height early-strength type polycarboxylic admixture and the feature of works fine performance, change the hydration influences of poly carboxylic acid series water reducer to cement, shorten concrete coagulating time, improve early age strength of concrete, enhance productivity, save cost.
The object of the invention is to overcome in the past water reducer complex manufacturing, produce that power consumption is high, quality is unstable shortcomings such as (as layerings etc.), provide that a kind of technique is simple, energy-conserving and environment-protective, excellent performance high diminishing height high-early strength type polycarboxylic acids dehydragent and without thermal source method for making.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high diminishing height high-early strength type polycarboxylic acids dehydragent, is characterized in that: be made up of the raw material of following weight percent, high-early strength type polycarboxylic acids dehydragent mother liquor 10% ~ 30%; Accelerating component 1% ~ 15%; Defoamer 0.005% ~ 0.02%; Water surplus;
Wherein, high-early strength type polycarboxylic acids dehydragent mother liquor is made up of the raw material of following weight percent:
Unsaturated Soxylat A 25-7 33% ~ 37%; Unsaturated acid and/or unsaturated acid derivative 2% ~ 6%; Chain-transfer agent 0.1% ~ 0.8%; Oxygenant 0.1% ~ 0.3%; Reductive agent 0.03% ~ 0.08%; Alkali 0.5% ~ 1.0%; All the other are water;
The molecular-weight average of described unsaturated Soxylat A 25-7 is at 3800-4000.
Described alkali is preferably sodium hydroxide.
The preparation method of described high-early strength type polycarboxylic acids dehydragent mother liquor comprises the steps:
1. get the raw materials ready: reductive agent is mixed the obtained reductive agent aqueous solution with water, be denoted as a material; By chain-transfer agent, unsaturated acid and/or unsaturated acid derivative, the obtained aqueous solution of water mixing, be denoted as b material;
2. be polymerized: unsaturated Soxylat A 25-7 and water are added in reactor, is stirred to dissolving, add oxygenant; After stirring, add a material and b material, when controlling reinforced, temperature in the kettle is 15 ~ 40 DEG C simultaneously, and after reinforced, continue reaction 1.5 ~ 3 hours, being neutralized to pH with alkaline solution is 7 ~ 9, obtains high-early strength type polycarboxylic acids dehydragent mother liquor.
Described add a material and b expect time controling at 2 ~ 4 hours.
Described accelerating component is one or more in trolamine, sodium sulfate and sodium-chlor, is preferably one or more in trolamine and sodium sulfate.
Described defoamer is at least one in machine silicon defoaming agent and polyethers defoamer.
Preferred b material is the aqueous solution that chain-transfer agent, unsaturated acid, unsaturated acid derivative and water obtain, and can obtain the early better water reducer of potent fruit like this.
Described unsaturated acid is vinylformic acid; Unsaturated acid derivative is one or more in acrylamide, ethyl propenoate, butyl acrylate.
Described oxygenant is one or more in hydrogen peroxide, ammonium persulphate, Potassium Persulphate and Sodium Persulfate, and preferred oxidant is hydrogen peroxide.
Described chain-transfer agent is one or more in thiohydracrylic acid, methylpropene sodium sulfonate, Thiovanic acid.
Described reductive agent is one or more in L-AA, ferrous sulfate and sodium bisulfite.
The present invention also provides a kind of preparation method of high diminishing height high-early strength type polycarboxylic acids dehydragent, comprises the steps:
(1) high-early strength type polycarboxylic acids dehydragent mother liquor is prepared
1. get the raw materials ready: reductive agent is mixed the obtained reductive agent aqueous solution with water, be denoted as a material; By chain-transfer agent, unsaturated acid and/or unsaturated acid derivative, the obtained aqueous solution of water mixing, be denoted as b material;
2. be polymerized: unsaturated Soxylat A 25-7 and water are added in reactor, is stirred to dissolving, add oxygenant; After stirring, add a material and b material, when controlling reinforced, temperature in the kettle is 15 ~ 40 DEG C simultaneously, and after reinforced, continue reaction 1.5 ~ 3 hours, being neutralized to pH with alkaline solution is 7 ~ 9, obtains high-early strength type polycarboxylic acids dehydragent mother liquor;
(2) high diminishing height high-early strength type polycarboxylic acids dehydragent is prepared
Add water, defoamer, high-early strength type polycarboxylic acids dehydragent mother liquor in a reservoir successively, mixing and stirring, then add accelerating component and stir and obtain high diminishing height high-early strength type polycarboxylic acids dehydragent.
The time controling of a material and b material is added at 2 ~ 4 hours preferably.
In this programme, the synthesis of high-early strength type polycarboxylic acids dehydragent mother liquor without the need to thermal source, add a material and b expect time be thermopositive reaction, when controlling reinforced, temperature in the kettle is 15 ~ 40 DEG C, the high-early strength type polycarboxylic acids dehydragent mother liquor that synthesis and accelerating component act synergistically, cost is low, and technique is simple.
The present invention, compared with like product and technique, has significant beneficial effect:
1, high-early strength type polycarboxylic acids dehydragent mother liquor of the present invention is according to molecular design theory, by preferred polymeric monomer, adjustment polycarboxylate water-reducer molecular backbone chain and side-chain structure, because molecular side chain is longer (lower to cement granules parcel property, cause hydrated cementitious to accelerate) and polymerization time introduce there is early powerful monomer, high-early strength type polycarboxylic acids dehydragent mother liquor effectively can be polymerized with powerful monomer morning, concrete coagulating time is shortened than coventional type poly carboxylic acid series water reducer mother liquor, improve early age strength of concrete, thus it is long for time of coagulation to solve traditional poly carboxylic acid series water reducer, early strength is low, the shortcoming of quality instability, realize the high early strong dual-use function of polycarboxylate water-reducer height diminishing,
The advantages such as the high diminishing height high-early strength type polycarboxylic acids dehydragent that 2, prepared by the present invention has high diminishing, high morning is strong, cement adaptability is wide, energy-conserving and environment-protective, can significantly reduce concrete water cement ratio, after composite accelerating component, concrete coagulating time can be shortened further, improve early age strength of concrete, the concrete serviceability of remarkable improvement, mechanical property and endurance quality, significant to aspects such as construction cost of enhancing productivity, reduce, saving reduce discharging, improve construction engineering quality and increase the service life.
3, preparation technology of the present invention is simple; and carry out at normal temperature; steam or boiler is not needed to provide thermal source; reaction system is stablized, and easily controls, and overcomes in traditional high performance water reducing agent of polyocarboxy acid preparation process the shortcoming needing to heat; whole reaction process is solvent-free; environmental protection, belongs to cleaner production, is conducive to energy-saving and emission-reduction and environment protection.
Embodiment
Comparative example 1
Prepare common poly carboxylic acid series water reducer P-1 by following material quantity and technique, be specially:
1. get the raw materials ready: L-AA 0.30g, add in 13g deionized water, mix, A tank is for subsequent use, is be a material; Vinylformic acid 23.0g, methylpropene sodium sulfonate 4.0 grams, adds in 40g deionized water, mixes, and B tank is for subsequent use, is be b material;
2. be polymerized: in the glass reactor being furnished with thermometer and electric blender, add deionized water 283.45g and allyl polyethenoxy ether (MW=2400) 200g, stir after fully dissolving, be warming up to 60 DEG C, add the H that mass concentration is 30%
2o
20.50g, stir, then drip a material and b material simultaneously, a gob adds 3 hours, b gob adds 2.5 hours, and a material dropwises rear continuation reaction response 2 hours, is neutralized to pH value to 6.8 ~ 7.2 with 30% aqueous sodium hydroxide solution 15 grams, obtain coventional type poly carboxylic acid series water reducer mother liquor P-1, its solid content is about 40%.
Comparative example 2
In container C, add deionized water 862.4 grams, silicone antifoam agent 0.1 gram, coventional type poly carboxylic acid series water reducer mother liquor P-1125 gram successively, mix and blend, adds accelerating component trolamine 12.5 grams, stirs, obtain poly carboxylic acid series water reducer F-1.
Embodiment 1
Prepare high diminishing high collapse protection type polycarboxylate high performance water-reducing agent by following material quantity and technique, be specially:
(1) high-early strength type polycarboxylic acids dehydragent mother liquor T-1 is prepared
1. get the raw materials ready: L-AA 0.20g, add in 13g deionized water, mix, A tank is for subsequent use, is be a material; Vinylformic acid 12.0g, acrylamide 5.0g, methylpropene sodium sulfonate 2.16 grams, adds in 40g deionized water, mixes, and B tank is for subsequent use, is be b material;
2. be polymerized: in the glass reactor being furnished with thermometer and electric blender, add deionized water 289.5g, unsaturated Soxylat A 25-7 (MW=4000) 210g, stir after fully dissolving, add the H that mass concentration is 30%
2o
21.45g, stir, constant temperature to 15 DEG C, drips a material and b material simultaneously, controls polymerization temperature at 15 ~ 40 DEG C, a gob adds 3 hours, b gob adds 2.5 hours, and a material dropwises rear continuation reaction response 2 hours, is neutralized to pH value to 6.8 ~ 7.2 with 30% aqueous sodium hydroxide solution 15 grams, obtain high-early strength type polycarboxylic acids dehydragent mother liquor T-1, its solid content is about 40%.
(2) high diminishing height high-early strength type polycarboxylic acids dehydragent Z-1 is prepared
Deionized water 862.4 grams, silicone antifoam agent 0.05 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-1125 gram is added successively in container C, mix and blend, add accelerating component trolamine 12.5 grams, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-1.
Embodiment 2
Prepare high diminishing high collapse protection type polycarboxylate high performance water-reducing agent by following material quantity and technique, be specially:
(1) high-early strength type polycarboxylic acids dehydragent mother liquor T-2 is prepared
1. get the raw materials ready: L-AA 0.35g, add in 13g deionized water, mix, A tank is for subsequent use, is be a material; Vinylformic acid 16.0g, acrylamide 6.0g, 3-thiohydracrylic acid 0.45g, add in 40g deionized water, mix, B tank is for subsequent use, is be b material;
2. be polymerized: in the glass reactor being furnished with thermometer and electric blender, add deionized water 187.3g and unsaturated Soxylat A 25-7 (MW=4000) 140g, stir after fully dissolving, add the H that mass concentration is 30%
2o
20.57g, stir, constant temperature to 18 DEG C, drips a material and b material simultaneously, controls polymerization temperature at 15 ~ 40 DEG C, a gob adds 3 hours, b gob adds 2.5 hours, and a material dropwises rear continuation reaction response 2 hours, is neutralized to pH value to 6.8 ~ 7.2 with 30% aqueous sodium hydroxide solution 16 grams, obtain high-early strength type polycarboxylic acids dehydragent mother liquor T-2, its solid content is about 40%.
(2) high diminishing height high-early strength type polycarboxylic acids dehydragent Z-2 is prepared
Deionized water 862.4 grams, silicone antifoam agent 0.05 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-2125 gram is added successively in container C, mix and blend, add accelerating component trolamine 12.5 grams, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-2.
Embodiment 3
Prepare high diminishing high collapse protection type polycarboxylate high performance water-reducing agent by following material quantity and technique, be specially:
(1) high-early strength type polycarboxylic acids dehydragent mother liquor T-3 is prepared
1. get the raw materials ready: L-AA 0.21g, add in 13g deionized water, mix, A tank is for subsequent use, is be a material; Vinylformic acid 12.0g, acrylamide 5.0g, methylpropene sodium sulfonate 2.28 grams adds in 40g deionized water, mixes, and B tank is for subsequent use, is be b material;
2. be polymerized: in the glass reactor being furnished with thermometer and electric blender, add deionized water 228.7g, unsaturated Soxylat A 25-7 (MW=3800) 170g, stir after fully dissolving, add the H that mass concentration is 30%
2o
20.57g, stir, constant temperature to 27 DEG C, drips a material and b material simultaneously, controls polymerization temperature at 15 ~ 40 DEG C, a gob adds 3 hours, b gob adds 2.5 hours, and a material dropwises rear continuation reaction response 2 hours, is neutralized to pH value to 6.8 ~ 7.2 with 30% aqueous sodium hydroxide solution 14.5 grams, obtain high-early strength type polycarboxylic acids dehydragent mother liquor T-3, its solid content is about 40%.
(2) high diminishing height high-early strength type polycarboxylic acids dehydragent Z-3 is prepared
Deionized water 862.4 grams, silicone antifoam agent 0.05 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-3125 gram is added successively in container C, mix and blend, add accelerating component trolamine 12.5 grams, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-3.
Embodiment 4
Prepare high diminishing high collapse protection type polycarboxylate high performance water-reducing agent by following material quantity and technique, be specially:
(1) high-early strength type polycarboxylic acids dehydragent mother liquor T-4 is prepared
1. get the raw materials ready: L-AA 0.45g, add in 13g deionized water, mix, A tank is for subsequent use, is be a material; Vinylformic acid 11.0g, acrylamide 3.0g, 2 mercaptopropionic acid 0.39 gram, adds in 40g deionized water, mixes, and B tank is for subsequent use, is be b material;
2. be polymerized: in the glass reactor being furnished with thermometer and electric blender, add deionized water 281.4g and unsaturated Soxylat A 25-7 (MW=4000) 210g, stir after fully dissolving, add the H that mass concentration is 30%
2o
20.62g, stir, constant temperature to 13 DEG C, drips a material and b material simultaneously, controls polymerization temperature at 15 ~ 40 DEG C, a gob adds 3 hours, b gob adds 2.5 hours, and a material dropwises rear continuation reaction response 2 hours, is neutralized to pH value to 6.8 ~ 7.2 with 30% aqueous sodium hydroxide solution 16 grams, obtain high-early strength type polycarboxylic acids dehydragent mother liquor T-4, its solid content is about 40%.
(2) high diminishing height high-early strength type polycarboxylic acids dehydragent Z-4 is prepared
Deionized water 862.4 grams, silicone antifoam agent 0.05 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-4125 gram is added successively in container C, mix and blend, add accelerating component trolamine 12.5 grams, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-4.
Embodiment 5
Deionized water 862.3 grams, silicone antifoam agent 0.20 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-3125 gram is added successively in container C, mix and blend, add accelerating component trolamine 12.5 grams, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-5.
Embodiment 6
Deionized water 749.8 grams, silicone antifoam agent 0.20 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-3125 gram is added successively in container C, mix and blend, add 125 grams, accelerating component sodium sulfate, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-6.
Embodiment 7
Deionized water 737.3 grams, silicone antifoam agent 0.20 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-3125 gram is added successively in container C, mix and blend, add 125 grams, accelerating component sodium sulfate, trolamine 12.5 grams, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-7.
Embodiment 8
Prepare high diminishing high collapse protection type polycarboxylate high performance water-reducing agent by following material quantity and technique, be specially:
(1) high-early strength type polycarboxylic acids dehydragent mother liquor T-5 is prepared
1. get the raw materials ready: L-AA 0.21g, add in 13g deionized water, mix, A tank is for subsequent use, is be a material; Vinylformic acid 12.0g, methylpropene sodium sulfonate 2.28 grams adds in 40g deionized water, mixes, and B tank is for subsequent use, is be b material;
2. be polymerized: in the glass reactor being furnished with thermometer and electric blender, add deionized water 221.2g, unsaturated Soxylat A 25-7 (MW=3800) 170g, stir after fully dissolving, add the H that mass concentration is 30%
2o
20.57g, stir, constant temperature to 27 DEG C, drips a material and b material simultaneously, controls polymerization temperature at 15 ~ 40 DEG C, a gob adds 3 hours, b gob adds 2.5 hours, and a material dropwises rear continuation reaction response 2 hours, is neutralized to pH value to 6.8 ~ 7.2 with 30% aqueous sodium hydroxide solution 14.5 grams, obtain high-early strength type polycarboxylic acids dehydragent mother liquor T-5, its solid content is about 40%.
(2) high diminishing height high-early strength type polycarboxylic acids dehydragent Z-8 is prepared
Deionized water 862.4 grams, silicone antifoam agent 0.05 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-5125 gram is added successively in container C, mix and blend, add accelerating component trolamine 12.5 grams, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-8.
Embodiment 9
Prepare high diminishing high collapse protection type polycarboxylate high performance water-reducing agent by following material quantity and technique, be specially:
(1) high-early strength type polycarboxylic acids dehydragent mother liquor T-6 is prepared
1. get the raw materials ready: L-AA 0.45g, add in 13g deionized water, mix, A tank is for subsequent use, is be a material; Vinylformic acid 11.0g, acrylamide 3.0g, 2 mercaptopropionic acid 0.39 gram, adds in 40g deionized water, mixes, and B tank is for subsequent use, is be b material;
2. be polymerized: in the glass reactor being furnished with thermometer and electric blender, add deionized water 281.4g and unsaturated Soxylat A 25-7 (MW=4000) 210g, stir after fully dissolving, add the ammonium persulphate 0.62g that mass concentration is 30%, stir, constant temperature to 13 DEG C, drip a material and b material simultaneously, control polymerization temperature at 15 ~ 40 DEG C, a gob adds 3 hours, b gob adds 2.5 hours, a material dropwises rear continuation reaction response 2 hours, pH value is neutralized to 6.8 ~ 7.2 with 30% aqueous sodium hydroxide solution 16 grams, obtain high-early strength type polycarboxylic acids dehydragent mother liquor T-6, its solid content is about 40%.
Described ammonium persulphate can also be at least one of Potassium Persulphate and Sodium Persulfate.
(2) high diminishing height high-early strength type polycarboxylic acids dehydragent Z-9 is prepared
Deionized water 862.4 grams, polyethers defoamer 0.05 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-6125 gram is added successively in container C, mix and blend, add accelerating component trolamine 12.5 grams, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-9.
Embodiment 10
Prepare high diminishing high collapse protection type polycarboxylate high performance water-reducing agent by following material quantity and technique, be specially:
(1) high-early strength type polycarboxylic acids dehydragent mother liquor T-7 is prepared
1. get the raw materials ready: L-AA 0.45g, add in 13g deionized water, mix, A tank is for subsequent use, is be a material; Vinylformic acid 14.0g, 2 mercaptopropionic acid 0.39 gram, adds in 40g deionized water, mixes, and B tank is for subsequent use, is be b material;
2. be polymerized: in the glass reactor being furnished with thermometer and electric blender, add deionized water 281.4g and unsaturated Soxylat A 25-7 (MW=4000) 210g, stir after fully dissolving, add the H that mass concentration is 30%
2o
20.62g, stir, constant temperature to 13 DEG C, drips a material and b material simultaneously, controls polymerization temperature at 15 ~ 40 DEG C, a gob adds 3 hours, b gob adds 2.5 hours, and a material dropwises rear continuation reaction response 2 hours, is neutralized to pH value to 6.8 ~ 7.2 with 30% aqueous sodium hydroxide solution 16 grams, obtain high-early strength type polycarboxylic acids dehydragent mother liquor T-7, its solid content is about 40%.
(2) high diminishing height high-early strength type polycarboxylic acids dehydragent Z-10 is prepared
Deionized water 862.4 grams, polyethers defoamer 0.05 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-7125 gram is added successively in container C, mix and blend, add accelerating component trolamine 12.5 grams, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-10.
Embodiment 11
Prepare high diminishing high collapse protection type polycarboxylate high performance water-reducing agent by following material quantity and technique, be specially:
(1) high-early strength type polycarboxylic acids dehydragent mother liquor T-8 is prepared
1. get the raw materials ready: L-AA 0.21g, add in 13g deionized water, mix, A tank is for subsequent use, is be a material; Vinylformic acid 12.0g, acrylamide 5.0g, methylpropene sodium sulfonate 3.80 grams adds in 40g deionized water, mixes, and B tank is for subsequent use, is be b material;
2. be polymerized: in the glass reactor being furnished with thermometer and electric blender, add deionized water 228.7g, unsaturated Soxylat A 25-7 (MW=3800) 170g, stir after fully dissolving, add the H that mass concentration is 30%
2o
20.57g, stir, constant temperature to 27 DEG C, drips a material and b material simultaneously, controls polymerization temperature at 15 ~ 40 DEG C, a gob adds 3 hours, b gob adds 2.5 hours, and a material dropwises rear continuation reaction response 2 hours, is neutralized to pH value to 6.8 ~ 7.2 with 30% aqueous sodium hydroxide solution 14.5 grams, obtain high-early strength type polycarboxylic acids dehydragent mother liquor T-8, its solid content is about 40%.
(2) high diminishing height high-early strength type polycarboxylic acids dehydragent Z-11 is prepared
Deionized water 862.4 grams, silicone antifoam agent 0.05 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-8125 gram is added successively in container C, mix and blend, add accelerating component trolamine 12.5 grams, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-11.
Embodiment 12
Deionized water 687.45 grams, machine silicon defoaming agent defoamer 0.05 gram, high-early strength type polycarboxylic acids dehydragent mother liquor T-3300 gram is added successively in container C, mix and blend, add accelerating component trolamine 12.5 grams, stir, obtain high diminishing height high-early strength type polycarboxylic acids dehydragent Z-12.
Respectively following test is carried out to high diminishing height high-early strength type polycarboxylic acids dehydragent prepared by above example:
1, product of the present invention and domestic and international product water cement mortar Experimental comparison
This experiment cement is little wild field 42.5R, cement 1000g, and standard sand 2000 grams, water 305g, specific experiment result is as shown in table 1.
Table 1 sand-cement slurry contrast experiment
As can be seen from Table 1, height diminishing height high-early strength type polycarboxylic acids dehydragent of the present invention all has good water-reducing effect and higher dispersive ability, and effect is suitable with external product effect.
2, product of the present invention and domestic and international product concrete experiments contrast
This experiment cement is little wild field 42.5R, and flyash is Huaneng Group secondary ash.Silt content is 2.2%, the medium sand of fineness modulus 2.6.Silt content 0.5%, the stone of particle diameter 5 ~ 25.Churning time is 90 seconds, vibrating time 15 seconds.Proportioning is cement: flyash: breeze: sand: stone: water=190:80:80:1000:840:160.Specific experiment result is as shown in table 2.
Table 2 concrete performance experimental result
As can be seen from Table 2, high diminishing height high-early strength type polycarboxylic acids dehydragent of the present invention has the advantages such as water-reducing effect is good, early strength is high, later strength is not lost, energy-conserving and environment-protective, good stability, excellent combination property.
The foregoing is only specific embodiments of the invention; be not limited to the present invention; for a person skilled in the art, can be improved according to above-described embodiment or convert, and all these improve and conversion all should be included in the protection domain of claims of the present invention.
Claims (10)
1. a high diminishing height high-early strength type polycarboxylic acids dehydragent, is characterized in that: be made up of the raw material of following weight percent, high-early strength type polycarboxylic acids dehydragent mother liquor 10% ~ 30%; Accelerating component 1% ~ 15%; Defoamer 0.005% ~ 0.02%; Water surplus;
Wherein, high-early strength type polycarboxylic acids dehydragent mother liquor is made up of the raw material of following weight percent:
Unsaturated Soxylat A 25-7 33% ~ 37%; Unsaturated acid and/or unsaturated acid derivative 2% ~ 6%; Chain-transfer agent 0.1% ~ 0.8%; Oxygenant 0.1% ~ 0.3%; Reductive agent 0.03% ~ 0.08%; Alkali 0.5% ~ 1.0%; All the other are water;
The molecular-weight average of described unsaturated Soxylat A 25-7 is 3800-4000.
2. high diminishing height high-early strength type polycarboxylic acids dehydragent according to claim 1, is characterized in that: described accelerating component is one or more in trolamine, sodium sulfate and sodium-chlor.
3. high diminishing height high-early strength type polycarboxylic acids dehydragent according to claim 1, is characterized in that: described defoamer is at least one in machine silicon defoaming agent and polyethers defoamer.
4. high diminishing height high-early strength type polycarboxylic acids dehydragent according to claim 1, is characterized in that: described unsaturated acid is vinylformic acid; Unsaturated acid derivative is one or more in acrylamide, ethyl propenoate, butyl acrylate.
5. high diminishing height high-early strength type polycarboxylic acids dehydragent according to claim 1, is characterized in that: described b material is the aqueous solution that chain-transfer agent, unsaturated acid, unsaturated acid derivative and water obtain.
6. high diminishing height high-early strength type polycarboxylic acids dehydragent according to claim 1, is characterized in that: described oxygenant is one or more in hydrogen peroxide, ammonium persulphate, Potassium Persulphate and Sodium Persulfate.
7. high diminishing height high-early strength type polycarboxylic acids dehydragent according to claim 1, is characterized in that: described chain-transfer agent is one or more in thiohydracrylic acid, methylpropene sodium sulfonate, Thiovanic acid.
8. high diminishing height high-early strength type polycarboxylic acids dehydragent according to claim 1, is characterized in that: described reductive agent is one or more in L-AA, ferrous sulfate and sodium bisulfite.
9. the preparation method of a kind of high diminishing height high-early strength type polycarboxylic acids dehydragent piece according to any one of claim 1-8, is characterized in that: comprise the steps:
(1) high-early strength type polycarboxylic acids dehydragent mother liquor is prepared
1. get the raw materials ready: reductive agent is mixed the obtained reductive agent aqueous solution with water, be denoted as a material; By chain-transfer agent, unsaturated acid and/or unsaturated acid derivative, the obtained aqueous solution of water mixing, be denoted as b material;
2. be polymerized: unsaturated Soxylat A 25-7 and water are added in reactor, is stirred to dissolving, add oxygenant; After stirring, add a material and b material, when controlling reinforced, temperature in the kettle is 15 ~ 40 DEG C simultaneously, and after reinforced, continue reaction 1.5 ~ 3 hours, being neutralized to pH with alkaline solution is 7 ~ 9, obtains high-early strength type polycarboxylic acids dehydragent mother liquor;
(2) high diminishing height high-early strength type polycarboxylic acids dehydragent is prepared
Add water, defoamer, high-early strength type polycarboxylic acids dehydragent mother liquor in a reservoir successively, mixing and stirring, then add accelerating component and stir and obtain high diminishing height high-early strength type polycarboxylic acids dehydragent.
10. high diminishing height high-early strength type polycarboxylic acids dehydragent according to claim 9, is characterized in that: described in add a material and b expect time controling at 2 ~ 4 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516374.3A CN105130269B (en) | 2015-08-21 | 2015-08-21 | High-water-reduction high-early-strength type polycarboxylic acid water reducing agent and pyrogen-free preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516374.3A CN105130269B (en) | 2015-08-21 | 2015-08-21 | High-water-reduction high-early-strength type polycarboxylic acid water reducing agent and pyrogen-free preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105130269A true CN105130269A (en) | 2015-12-09 |
| CN105130269B CN105130269B (en) | 2017-05-10 |
Family
ID=54715918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510516374.3A Active CN105130269B (en) | 2015-08-21 | 2015-08-21 | High-water-reduction high-early-strength type polycarboxylic acid water reducing agent and pyrogen-free preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105130269B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106397685A (en) * | 2016-09-21 | 2017-02-15 | 武汉奥克化学有限公司 | Early strength water reducing agent and preparation method thereof |
| CN106587706A (en) * | 2016-12-07 | 2017-04-26 | 湖北工业大学 | High self-compaction and reciprocity polycarboxylic acid water reducing agent composition for concrete |
| CN109776740A (en) * | 2019-01-07 | 2019-05-21 | 江门职业技术学院 | A kind of early-strength polycarboxylic acid-based water reducing agent containing aliphatic sulfonate and preparation method thereof |
| CN110437388A (en) * | 2019-08-30 | 2019-11-12 | 山东银泰化学技术有限公司 | A kind of preparation method of high performance-price ratio polycarboxylate water-reducer |
| CN110668758A (en) * | 2019-10-30 | 2020-01-10 | 安徽海螺建材设计研究院有限责任公司 | Grouting material for connecting reinforcing steel bar sleeve |
| CN107352842B (en) * | 2017-08-31 | 2020-05-22 | 南京瑞迪高新技术有限公司 | High-early-strength polycarboxylate-type water reducing agent for subway pipe piece concrete |
| CN113024152A (en) * | 2021-04-02 | 2021-06-25 | 上海通原环保科技有限公司 | Quick-drying and quick-setting type cement water reducing agent composition |
| CN114516732A (en) * | 2022-03-15 | 2022-05-20 | 江苏国胶新材料有限公司 | Method for preparing early strength type water reducing agent based on waste water recycling |
| CN119191744A (en) * | 2024-11-27 | 2024-12-27 | 湖州绿色新材股份有限公司 | Nanocomposite ultra-early strength polycarboxylate water reducer, preparation method and application thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225148A (en) * | 2007-12-21 | 2008-07-23 | 北京工业大学 | A kind of synthetic method of allyl polyether type high performance water reducing agent |
| CN101376576A (en) * | 2008-10-10 | 2009-03-04 | 上海市建筑科学研究院(集团)有限公司 | High-early strength type polycarboxylic acids dehydragent and preparation technique thereof |
| CN101538134A (en) * | 2009-04-14 | 2009-09-23 | 大连市建筑科学研究设计院股份有限公司 | Polyether class polycarboxylic acid high-efficiency water reducing agent and preparation method thereof |
| CN101786824A (en) * | 2010-02-26 | 2010-07-28 | 北京新中岩建材科技有限公司 | Plastic retaining type polyether assemblage carboxylic acid high-performance water reducing agent and preparation method thereof |
| CN101812163A (en) * | 2010-04-19 | 2010-08-25 | 河北铁园科技发展有限公司 | Method for preparing polycarboxylic acid retarding water reducer |
| CN101921083A (en) * | 2010-08-19 | 2010-12-22 | 上海固佳化工科技有限公司 | Ester-ether mixed ultra high early strength poly-carboxylic high-performance water reducer and preparation method thereof |
| CN101928114A (en) * | 2010-08-30 | 2010-12-29 | 大连建科北方化学有限公司 | High water reduction high collapse protection type polycarboxylate high-performance water reducer and pyrogen-free preparation method thereof |
| CN102040347A (en) * | 2009-10-20 | 2011-05-04 | 深圳市海川实业股份有限公司 | Polycarboxylic admixture for weak concrete |
| CN102276185A (en) * | 2011-06-28 | 2011-12-14 | 上海三瑞高分子材料有限公司 | Early strength type water reducing agent for precast concrete |
-
2015
- 2015-08-21 CN CN201510516374.3A patent/CN105130269B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225148A (en) * | 2007-12-21 | 2008-07-23 | 北京工业大学 | A kind of synthetic method of allyl polyether type high performance water reducing agent |
| CN101376576A (en) * | 2008-10-10 | 2009-03-04 | 上海市建筑科学研究院(集团)有限公司 | High-early strength type polycarboxylic acids dehydragent and preparation technique thereof |
| CN101538134A (en) * | 2009-04-14 | 2009-09-23 | 大连市建筑科学研究设计院股份有限公司 | Polyether class polycarboxylic acid high-efficiency water reducing agent and preparation method thereof |
| CN102040347A (en) * | 2009-10-20 | 2011-05-04 | 深圳市海川实业股份有限公司 | Polycarboxylic admixture for weak concrete |
| CN101786824A (en) * | 2010-02-26 | 2010-07-28 | 北京新中岩建材科技有限公司 | Plastic retaining type polyether assemblage carboxylic acid high-performance water reducing agent and preparation method thereof |
| CN101812163A (en) * | 2010-04-19 | 2010-08-25 | 河北铁园科技发展有限公司 | Method for preparing polycarboxylic acid retarding water reducer |
| CN101921083A (en) * | 2010-08-19 | 2010-12-22 | 上海固佳化工科技有限公司 | Ester-ether mixed ultra high early strength poly-carboxylic high-performance water reducer and preparation method thereof |
| CN101928114A (en) * | 2010-08-30 | 2010-12-29 | 大连建科北方化学有限公司 | High water reduction high collapse protection type polycarboxylate high-performance water reducer and pyrogen-free preparation method thereof |
| CN102276185A (en) * | 2011-06-28 | 2011-12-14 | 上海三瑞高分子材料有限公司 | Early strength type water reducing agent for precast concrete |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106397685A (en) * | 2016-09-21 | 2017-02-15 | 武汉奥克化学有限公司 | Early strength water reducing agent and preparation method thereof |
| CN106397685B (en) * | 2016-09-21 | 2019-04-23 | 武汉奥克化学有限公司 | A kind of early-strength water-reducing agent and preparation method thereof |
| CN106587706A (en) * | 2016-12-07 | 2017-04-26 | 湖北工业大学 | High self-compaction and reciprocity polycarboxylic acid water reducing agent composition for concrete |
| CN106587706B (en) * | 2016-12-07 | 2018-09-07 | 湖北工业大学 | A kind of self-compaction high workability concrete polycarboxylate superplasticizer composition |
| CN107352842B (en) * | 2017-08-31 | 2020-05-22 | 南京瑞迪高新技术有限公司 | High-early-strength polycarboxylate-type water reducing agent for subway pipe piece concrete |
| CN109776740A (en) * | 2019-01-07 | 2019-05-21 | 江门职业技术学院 | A kind of early-strength polycarboxylic acid-based water reducing agent containing aliphatic sulfonate and preparation method thereof |
| CN110437388A (en) * | 2019-08-30 | 2019-11-12 | 山东银泰化学技术有限公司 | A kind of preparation method of high performance-price ratio polycarboxylate water-reducer |
| CN110668758A (en) * | 2019-10-30 | 2020-01-10 | 安徽海螺建材设计研究院有限责任公司 | Grouting material for connecting reinforcing steel bar sleeve |
| CN113024152A (en) * | 2021-04-02 | 2021-06-25 | 上海通原环保科技有限公司 | Quick-drying and quick-setting type cement water reducing agent composition |
| CN114516732A (en) * | 2022-03-15 | 2022-05-20 | 江苏国胶新材料有限公司 | Method for preparing early strength type water reducing agent based on waste water recycling |
| CN119191744A (en) * | 2024-11-27 | 2024-12-27 | 湖州绿色新材股份有限公司 | Nanocomposite ultra-early strength polycarboxylate water reducer, preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105130269B (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105130269A (en) | High-water-reduction high-early-strength type polycarboxylic acid water reducing agent and pyrogen-free preparation method thereof | |
| CN101928114B (en) | High water reduction high collapse protection type polycarboxylate high-performance water reducer and pyrogen-free preparation method thereof | |
| CN105330193B (en) | Nuclear power ultra dense real concrete polycarboxylate water-reducer and preparation method thereof | |
| CN104448156B (en) | A kind of room temperature preparation method of high-efficiency polycarboxylic acid water reducer | |
| CN103183788B (en) | The preparation method of polycarboxylic acid concrete slump retaining agent | |
| CN106279559A (en) | A kind of saccharide carboxylate modified polycarboxylic acid water reducer and preparation method thereof | |
| CN105254819A (en) | Preparation method of normal-temperature early-strength polycarboxylate superplasticizer | |
| CN109369859B (en) | Concrete tackifying type viscosity regulator and preparation method thereof | |
| CN101215116A (en) | A retarded polycarboxylate water reducer | |
| CN105645810A (en) | Early-strength polycarboxylate type high-performance water reducing agent and preparation method | |
| CN104649608A (en) | Additive for improving early strength of cement based material as well as preparation method and application of additive | |
| CN103864338A (en) | Oxydative degradation starch grafted polycarboxylate superplasticizer and preparation method thereof | |
| CN104987469A (en) | Preparing method for high dispersion type polycarboxylate water reducing agent | |
| CN111548459A (en) | Preparation method of high slump loss resistant polycarboxylate superplasticizer | |
| CN101538352B (en) | A kind of preparation method of amphoteric vinyl polymer water reducer | |
| CN102503221B (en) | Cyclohexanol grafted polycarboxylic acid water reducing agent and preparation method thereof | |
| CN111349199B (en) | Steady-state polycarboxylic acid superplasticizer with core-shell structure and preparation method thereof | |
| CN101293946B (en) | Preparation method of air-entraining controllable polycarboxylate water reducer | |
| CN104891851B (en) | A kind of strength of high strength concrete exciting agent and preparation method thereof | |
| CN103723944A (en) | Efficient concrete water reducer and preparation method thereof | |
| CN104371075B (en) | A kind of preparation method of the polycarboxylate water-reducer of room temperature synthesis | |
| CN112250807B (en) | Copolymer water reducing agent for fabricated building components and preparation method thereof | |
| CN113372083A (en) | Graphene oxide based layered material modified self-leveling mortar and preparation method thereof | |
| CN105085821A (en) | Heat-energy-free novel integrated efficient polycarboxylic acid water reducer and preparation method therefor | |
| CN105524230A (en) | Preparation method of polycarboxylate superplasticizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Changlong Inventor after: Xin Desheng Inventor after: Xun Wuju Inventor after: Wang Yuelong Inventor after: Guo Yu Inventor before: Wu Changlong Inventor before: Xun Wuju |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170828 Address after: Xinzhaizi lazishan village in Ganjingzi District of Dalian City, Liaoning province 116000 Patentee after: DALIAN HUAJIAN TECHNOLOGY Co.,Ltd. Address before: 116038 Liaoning Dalian Dalian Pine Island chemical industry park Patentee before: DALIAN JIANKE NORTH CHEMICAL Co.,Ltd. |
|
| CI03 | Correction of invention patent | ||
| CI03 | Correction of invention patent |
Correction item: Inventor Correct: Wu Changlong|Xin Desheng|Xun Wuju|Wang Yuesong|Guo Yu False: Wu Changlong|Xin Desheng|Xun Wuju|Wang Yuelong|Guo Yu Number: 37-02 Volume: 33 |