CN104861122A - Heat-source-free early strength polycarboxylate water reducer and preparation method thereof - Google Patents

Heat-source-free early strength polycarboxylate water reducer and preparation method thereof Download PDF

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CN104861122A
CN104861122A CN201510192076.3A CN201510192076A CN104861122A CN 104861122 A CN104861122 A CN 104861122A CN 201510192076 A CN201510192076 A CN 201510192076A CN 104861122 A CN104861122 A CN 104861122A
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unsaturated
preparation
water
polycarboxylate superplasticizer
thermal source
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李芳�
杨顺荣
杨秀芳
朱鹏程
肖尾俭
余燕华
黄永毅
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Fujian Luqiao Xiang Tong Building Materials Technology Co., Ltd.
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Xiamen R & B Sunstone Building Materials Technology Co Ltd
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Abstract

The invention discloses a heat-source-free early strength polycarboxylate water reducer and a preparation method thereof. The method comprises the following steps: any one or more than two selected from a reducing agent, a chain transfer agent and an unsaturated acid derivative are mixed with water, such that a water solution with a mass percentage concentration of 44+/-3% is obtained, and is marked as an X material; unsaturated sulfonate and a monomer a are mixed with water, such that a water solution with a mass percentage concentration of 26+/-1% is obtained, and is marked as a Y material; unsaturated polyoxyethylene ether and water are added into a polymerization reaction kettle, and stirring is carried out until unsaturated polyoxyethylene ether is completely dissolved; an oxidizing agent is added and the mixture is well mixed; the adding of the X material and the Y material is started, and an adding time is controlled at 1-3h; when adding is finished, the temperature is maintained for 1-2h; the polymerization reaction is finished, and a product is neutralized with an alkali solution with a mass percentage concentration of 20+/-2% until the pH is 6-7. The method provided by the invention has the advantages of simple process, reduced cost, easy industrialization and no environment pollution. With the method, the water reducing rate of the water reducer is improved, and concrete early strength is improved.

Description

A kind of without thermal source Early-strength polycarboxylate superplasticizer and preparation method thereof
Technical field
The present invention relates to concrete additives in building materials technical field, be specifically related to a kind of without thermal source Early-strength polycarboxylate superplasticizer and preparation method thereof.
Background technology
In recent years, along with the sustained and rapid development of China's economic society, the infrastructure construction dynamics of China and scale are also continuing to increase, and the application of concrete prefabricated element also gets more and more.Realizing the high-level efficiency of residential housing, high-quality, low consumption of resources and low environmental impact by concrete prefabricated technology, have significant economic and social benefit, is the development trend of Current Housing building.In concrete member is produced, for accelerating template turn around time, pedestal utilization ratio, and accelerate engineering construction progress, realize maximum economic benefit, just need to adopt concrete early strength agent to promote hydrated cementitious, to shorten the tempo of concrete time of coagulation and quickening early age strength of concrete.Along with the development of architectural engineering technology, hardening accelerator by increasing in concrete works.
At present, the method preparing Early-strength polycarboxylate superplasticizer mainly contains two kinds, be respectively synthesis and composite, composite method mainly water reducer and hardening accelerator component composite; Synthetic method, mainly through poly carboxylic acid Molecular Structure Design, molecular chain is introduced the functional group with early epistasis energy.
Patent CN100595173C provides a kind of early strength polycarboxylic acid high performance dehydragent and preparation method thereof, and this invention is with based on ester class poly carboxylic acid series water reducer, and composite accelerating component, reaches the object improving early age strength of concrete.Use composite method to improve early age strength of concrete, the volume of water reducer is general larger, and composite after the stability adaptability that is relatively poor, product of water reducer product also can be affected.
Patent CN101475664B reports the preparation method of the polycarboxylate water-reducer for prefabricated components, this water reducer is under the effect of initiator persulphate, by methoxy polyethylene glycol acrylate, vinylformic acid, unsaturated sulfonic acid or its salt monomer, unsaturated amides or its salt monomer in aqueous copolymerization obtain.The method in two steps, needs first to utilize high molecular polyoxy base polyoxyethylene glycol (molecular weight 2000-5000) and vinylformic acid generation esterification, prepares methoxy polyethylene glycol acrylate.For improving esterifying efficiency, in preparation process, employ a large amount of organic solvent cyclohexane gives is water entrainer.Preparation technology is loaded down with trivial details, and production unit requires higher, and processing safety is poor.
Patent application CN103450408A provides a kind of ethers Early-strength polycarboxylate superplasticizer and preparation method thereof, this invention is by unsaturated ester, di-alcohol monoisopropanolamine, 2-acrylamido-methyl propanesulfonic acid and methacrylic polyoxyethylene poly-oxygen propylene aether etc. are as primary chemical synthesis material, under the effect of catalyzer, initiator, chain-transfer agent etc., in certain condition through amidation and polymerization process, obtain a kind of high molecular polymer with both sexes structure.This reactions steps is loaded down with trivial details, needs to obtain through amidation and copolymerization two-step reaction, and copolyreaction also needs to be heated to 50-70 DEG C and just can react, and fails to reach energy-conservation object.
Patent application CN102432776A provides a kind of preparation method of high-early strength type polycarboxylic acids dehydragent, this invention is by the modification polyoxyalkylenes ether containing unsaturated double-bond, (methyl) vinylformic acid, the sulfonate of unsaturated double-bond, acrylamide four kinds of monomers, use molecular weight regulator, temperature of reaction is under 50-70 DEG C of condition, synthesizes high-early strength type polycarboxylic acids dehydragent.The method needs to complete reaction under the condition of heating, fails to reach energy-conservation object.
Summary of the invention
The object of the present invention is to provide one not need heating, energy efficient, increases work efficiency, and obtained water reducer water-reducing rate is high, the water reducer preparation method that early stage reinforced effects is good.
For achieving the above object, the invention provides a kind of preparation method without thermal source Early-strength polycarboxylate superplasticizer, it is characterized in that, step is,
Get the raw materials ready: take each component by the mol ratio of each monomer, reductive agent, chain-transfer agent, unsaturated acid derivative being mixed obtained mass percent concentration with water is the aqueous solution of 44 ± 3%, is denoted as X material; Unsaturated sulfonic acid salt, monomer a being mixed obtained mass percent concentration with water is the aqueous solution of 26 ± 1%, is denoted as Y material for subsequent use;
Polymerization: unsaturated Soxylat A 25-7 and water are added in polymerization reaction kettle, be stirred to unsaturated Soxylat A 25-7 to dissolve completely, add oxygenant, be stirred to evenly, start to add X material and Y material simultaneously, add time controling at 1-3 hour, 1-2h is incubated after interpolation, polyreaction terminates, and is neutralized to pH=6-7 with the alkaline solution that mass percent concentration is 20 ± 2%, obtained polyethers Early-strength polycarboxylate superplasticizer; Polymer quality percentage concentration is between 40%-55%.
Further, the mol ratio of described unsaturated Soxylat A 25-7, unsaturated acid derivative, unsaturated sulfonic acid salt, monomer a is 1:3-5:0.7-1.5:0.2-0.6; Oxygenant is the 0.8-1.2% of monomer total mass, and reductive agent is the 0.1-0.2% of monomer total mass, and chain-transfer agent is the 0.3-0.5% of monomer total mass; Described monomer total mass is the quality sum of unsaturated Soxylat A 25-7, unsaturated acid derivative, unsaturated sulfonic acid salt and monomer a.
Further, described unsaturated Soxylat A 25-7 is one or more the combination in allyl polyethenoxy ether, methacrylic Soxylat A 25-7 or isopentene Soxylat A 25-7 and derivative thereof, and corresponding molecular weight is 1000-3000.
Further, described unsaturated acid derivative is one or more the combination in (methyl) vinylformic acid, methylene-succinic acid, toxilic acid (acid anhydride).
Further, described unsaturated sulfonic acid salt is one or more the combination in sodium allylsulfonate, methylpropene sodium sulfonate, 2-acrylamide-2-methacrylic sulfonic acid.
Further, described monomer a comprises one or more the combination in trolamine, tri-isopropanolamine, di-alcohol monoisopropanolamine.
Further, described oxygenant comprises one or more the combination in hydrogen peroxide, benzoyl peroxide, tertbutyl peroxide, ammonium persulphate, Potassium Persulphate.
Further, described reductive agent comprises one or more the combination in xitix and sodium bisulfite, tartrate, rongalite, ferrous sulfate, ferrous pyrophosphate.
Further, described chain-transfer agent is the combination of one or more in Thiovanic acid, thiohydracrylic acid, mercaptoethanol, 3-thiohydracrylic acid;
Optional, described alkaline solution is one or more combination in sodium hydroxide, potassium hydroxide, ammoniacal liquor, thanomin.
The present invention also provide the described preparation method without thermal source Early-strength polycarboxylate superplasticizer to prepare without thermal source Early-strength polycarboxylate superplasticizer.
In the present invention, the ratio of unsaturated acid derivative and unsaturated Soxylat A 25-7 increases, Early-strength polycarboxylate superplasticizer water-reducing rate increases, molecular weight increases, but unsaturated acid derivative and unsaturated Soxylat A 25-7 are than excessive, Early-strength polycarboxylate superplasticizer molecular weight is excessive, the dispersiveness of gained Early-strength polycarboxylate superplasticizer is deteriorated, and water-reducing rate reduces rapidly.If the amount of oxygenant, reductive agent and chain-transfer agent exceeds the scope of application claims, the molecular weight of Early-strength polycarboxylate superplasticizer can be affected, cause the water-reducing rate of Early-strength polycarboxylate superplasticizer low.
The present invention adopts aforementioned preparation process to produce water reducer, compared with like product and technique, has following significant beneficial effect:
1, have employed oxidation-reduction trigger system in copolyreaction, suitable Oxidizing and Reducing Agents can be selected to realize optimum initiator proportioning, farthest reduce temperature of reaction, without the need to heating, reaction can be made at room temperature to carry out, simplify production technique, saved cost, improve working efficiency.
2, introduce alcamines material, effectively can improve the water-reducing rate of water reducer and concrete early strength.
3, simple process, be easy to suitability for industrialized production and environmental nonpollution, comparatively like product is more excellent for the application performance of the finished product.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.Unreceipted concrete technology or condition person in embodiment, according to the technology described by the document in this area or condition or carry out according to product description.Agents useful for same or the unreceipted production firm person of instrument, being can by the conventional products of commercial acquisition.
Embodiment 1: without the preparation of thermal source Early-strength polycarboxylate superplasticizer
The first step is got the raw materials ready: Thiovanic acid 0.69g, xitix 0.23g, and vinylformic acid 18g adds 24.08g water, mixes the solution that obtained mass percent concentration is about 44%, is placed in storage tank for subsequent use, is considered as X material; Methylpropene sodium sulfonate 9.2g, tri-isopropanolamine 3.2g, add water 35.3g, mixes the aqueous solution that obtained mass percent concentration is about 26%, stored in for subsequent use in another storage tank, is considered as Y material;
Second step is polymerized: in the four-hole boiling flask being furnished with thermometer and electric blender, add 163.5g water, allyl polyethenoxy ether (M w=3000) 200g, stirs after fully dissolving, adds the H that mass percent concentration is 20% 2o 21.84g, stirs, and starts to add X material and Y material simultaneously, within 3 hours, adds complete, is incubated 1 hour afterwards, is that the pH value of mixed solution is neutralized to pH=6 ~ 7 by the sodium hydroxide solution of 20%, adds 40.3g water with mass percent concentration.Obtained without thermal source Early-strength polycarboxylate superplasticizer, its solid content is about 40%.
In actual production process, adopt the mol ratio identical with previous embodiment to get the raw materials ready, then carry out polyreaction by identical polymerization technique, be polymerized the reactor of equipment system the temperature control unit common to those skilled in the art and whipping appts used.
With reference to the relevant regulations of GB8076-2008 " concrete admixture ", GB/T50081-2002 " standard for test methods of mechanical properties of ordinary concrete ", concrete test is adopted to detect the performance perameter such as the slump, ultimate compression strength of this product.Concrete mix and effect related data are as shown in table 1,2.
Embodiment 2: without the preparation of thermal source Early-strength polycarboxylate superplasticizer
Adopt the processing step identical with embodiment 1, prepare without thermal source Early-strength polycarboxylate superplasticizer by following raw material dosage and processing parameter, be specially:
The first step is got the raw materials ready: Thiovanic acid 0.99g, xitix 0.37g, and methacrylic acid 28.9g adds 38.5g water, mixes the solution that obtained mass percent concentration is about 44%, is placed in storage tank for subsequent use, is considered as X material; Sodium allylsulfonate 11.88g, tri-isopropanolamine 7.9g, add water 56.3g, mixes the aqueous solution that obtained mass percent concentration is about 26%, stored in for subsequent use in another storage tank, is considered as Y material;
Second step is polymerized: in the four-hole boiling flask being furnished with thermometer and electric blender, add 163.5g water, methacrylic Soxylat A 25-7 (M w=2400) 200g, stirs after fully dissolving, adds the H that mass percent concentration is 20% 2o 22.49g, stirs, and starts to add X material and Y material simultaneously, and within 3 hours, add complete, being incubated 1 hour afterwards, is that the pH value of mixed solution is neutralized to pH=6 ~ 7 by the sodium hydroxide solution of 20% with mass percent concentration.Obtained without thermal source Early-strength polycarboxylate superplasticizer, its solid content is about 50%.
With reference to the relevant regulations of GB8076-2008 " concrete admixture ", GB/T50081-2002 " standard for test methods of mechanical properties of ordinary concrete ", concrete test is adopted to detect the performance perameter such as the slump, ultimate compression strength of this product.Concrete mix and effect related data are as shown in table 1,2.
Embodiment 3: without the preparation of thermal source Early-strength polycarboxylate superplasticizer
Prepare without thermal source Early-strength polycarboxylate superplasticizer by following raw material dosage and processing parameter, be specially:
The first step is got the raw materials ready: thiohydracrylic acid 1.22g, rongalite 0.49g, and vinylformic acid 26.9g adds 36.4g water, mixes the solution that obtained mass percent concentration is about 44%, is placed in storage tank for subsequent use, is considered as X material; Sodium allylsulfonate 12g, trolamine 5.5g, add water 49.8g, mixes the aqueous solution that obtained mass percent concentration is about 26%, stored in for subsequent use in another storage tank, is considered as Y material;
Second step is polymerized: in the four-hole boiling flask being furnished with thermometer and electric blender, add 163.5g water, isopentene Soxylat A 25-7 (M w=2400) 200g, stir after fully dissolving, add the tertbutyl peroxide 2.93g that mass percent concentration is 20%, stir, start to add X material and Y material simultaneously, within 3 hours, add complete, be incubated 1 hour afterwards, with mass percent concentration be 20% ammonia soln the pH value of mixed solution is neutralized to pH=6 ~ 7, add 43g water.Obtained without thermal source Early-strength polycarboxylate superplasticizer, its solid content is about 45%.
With reference to the relevant regulations of GB8076-2008 " concrete admixture ", GB/T50081-2002 " standard for test methods of mechanical properties of ordinary concrete ", concrete test is adopted to detect the performance perameter such as the slump, ultimate compression strength of this product.Concrete mix and effect related data are as shown in table 1,2.
Embodiment 4: without the preparation of thermal source Early-strength polycarboxylate superplasticizer
Prepare without thermal source Early-strength polycarboxylate superplasticizer by following raw material dosage and processing parameter, be specially:
The first step is got the raw materials ready: thiohydracrylic acid 0.76g, rongalite 0.51g, and methylene-succinic acid 32.4g adds 42.9g water, mixes the solution that obtained mass percent concentration is about 44%, is placed in storage tank for subsequent use, is considered as X material; Methylpropene sodium sulfonate 3.9g, 2-acrylamide-2-methacrylic sulfonic acid 10.3g, di-alcohol monoisopropanolamine 8.1g, add water 63.5g, mixes the aqueous solution that obtained mass percent concentration is about 26%, stored in for subsequent use in another storage tank, is considered as Y material;
Second step is polymerized: in the four-hole boiling flask being furnished with thermometer and electric blender, add 163.5g water, allyl polyethenoxy ether (M w=2000) 200g, stir after fully dissolving, add the tertbutyl peroxide 3.06g that mass percent concentration is 20%, stir, start to add X material and Y material simultaneously, within 3 hours, add complete, being incubated 1 hour afterwards, is that the pH value of mixed solution is neutralized to pH=6 ~ 7 by the potassium hydroxide solution of 20% with mass percent concentration.Obtained without thermal source Early-strength polycarboxylate superplasticizer, its solid content is about 50%.
With reference to the relevant regulations of GB8076-2008 " concrete admixture ", GB/T50081-2002 " standard for test methods of mechanical properties of ordinary concrete ", concrete test is adopted to detect the performance perameter such as the slump, ultimate compression strength of this product.Concrete mix and effect related data are as shown in table 1,2.
Embodiment 5: without the preparation of thermal source Early-strength polycarboxylate superplasticizer
Prepare without thermal source Early-strength polycarboxylate superplasticizer by following raw material dosage and processing parameter, be specially:
The first step is got the raw materials ready: Thiovanic acid 0.75g, xitix 0.24g, and vinylformic acid 24g adds 31.8g water, mixes the solution that obtained mass percent concentration is about 44%, is placed in storage tank for subsequent use, is considered as X material; Methylpropene sodium sulfonate 11.9g, tri-isopropanolamine 6g, add water 50g, mixes the aqueous solution that obtained mass percent concentration is about 26%, stored in for subsequent use in another storage tank, is considered as Y material;
Second step is polymerized: in the four-hole boiling flask being furnished with thermometer and electric blender, add 163.5g water, methacrylic Soxylat A 25-7 (M w=2400) 200g, stir after fully dissolving, add the hydrogen peroxide 1.93g that mass percent concentration is 20%, stir, start to add X material and Y material simultaneously, within 3 hours, add complete, be incubated 1 hour afterwards, with mass percent concentration be 20% sodium hydroxide solution the pH value of mixed solution is neutralized to pH=6 ~ 7, add 22.9g water.Obtained without thermal source Early-strength polycarboxylate superplasticizer, its solid content is about 45%.
With reference to the relevant regulations of GB8076-2008 " concrete admixture ", GB/T50081-2002 " standard for test methods of mechanical properties of ordinary concrete ", concrete test is adopted to detect the performance perameter such as the slump, ultimate compression strength of this product.Concrete mix and effect related data are as shown in table 1,2.
Comparative example 1
Prepare polycarboxylate water-reducer by following raw material dosage and processing parameter, be specially:
The first step is got the raw materials ready: Thiovanic acid 0.9g, xitix 0.25g, and vinylformic acid 26.9g adds 35.7g water, mixes the solution that obtained mass percent concentration is about 44%, is placed in storage tank for subsequent use, is considered as X material; Methylpropene sodium sulfonate 13.1g, add water 37.3g, mixes the aqueous solution that obtained mass percent concentration is about 26%, stored in for subsequent use in another storage tank, is considered as Y material;
Second step is polymerized: in the four-hole boiling flask being furnished with thermometer and electric blender, add 163.5g water, allyl polyethenoxy ether (M w=2400) 200g, stir after fully dissolving, add the hydrogen peroxide 2.0g that mass percent concentration is 20%, stir, start to add X material and Y material simultaneously, within 3 hours, add complete, be incubated 1 hour afterwards, with mass percent concentration be 20% sodium hydroxide solution the pH value of mixed solution is neutralized to pH=6 ~ 7, add 50g water.Obtained without thermal source Early-strength polycarboxylate superplasticizer, its solid content is about 45%.
Comparative example 2
Prepare without thermal source Early-strength polycarboxylate superplasticizer by following raw material dosage and processing parameter, be specially:
The first step is got the raw materials ready: Thiovanic acid 0.75g, xitix 0.24g, and vinylformic acid 24g adds 31.8g water, mixes the solution that obtained mass percent concentration is about 44%, is placed in storage tank for subsequent use, is considered as X material; Methylpropene sodium sulfonate 11.9g, tri-isopropanolamine 10g, add water 62.3g, mixes the aqueous solution that obtained mass percent concentration is about 26%, stored in for subsequent use in another storage tank, is considered as Y material;
Second step is polymerized: in the four-hole boiling flask being furnished with thermometer and electric blender, add 163.5g water, methacrylic Soxylat A 25-7 (M w=2400) 200g, stir after fully dissolving, add the hydrogen peroxide 1.93g that mass percent concentration is 20%, stir, start to add X material and Y material simultaneously, within 3 hours, add complete, be incubated 1 hour afterwards, with mass percent concentration be 20% sodium hydroxide solution the pH value of mixed solution is neutralized to pH=6 ~ 7, add 46.5g water.Obtained without thermal source Early-strength polycarboxylate superplasticizer, its solid content is about 45%.
With reference to the relevant regulations of GB8076-2008 " concrete admixture ", GB/T50081-2002 " standard for test methods of mechanical properties of ordinary concrete ", concrete test is adopted to detect the performance perameter such as the slump, ultimate compression strength of this product.Concrete mix and effect related data are as shown in table 1,2.
Table 1 concrete mix table (unit: Kg/m 3)
Label Cement Water Sand Stone Flyash Breeze
C40 312 166 730 1030 49 49
Table 2 mechanical performance of concrete and effect data table related
In sum, the test-results explanation of embodiment 1-5 and comparative example 1-2, the early age strength of concrete (under the condition that volume and the slump are substantially identical) using product of the present invention to prepare is all high than comparative example 1 (common ethers polycarboxylic acid water reducing agent), and other serviceabilitys are all suitable.The test-results of embodiment 1-5 and comparative example 2 illustrates, the volume of monomer a increases, and early age strength of concrete is higher than the intensity of common ethers water reducer, but lower than the early strength of embodiment 5 and cost increases large.Therefore, this product can be applicable to need, in early strong concrete prefabricated element, be significantly improved, and cost performance to be higher to 28d intensity.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.

Claims (10)

1. without a preparation method for thermal source Early-strength polycarboxylate superplasticizer, it is characterized in that, step is,
Get the raw materials ready: take each component by the mol ratio of each monomer, reductive agent, chain-transfer agent, unsaturated acid derivative being mixed obtained mass percent concentration with water is the aqueous solution of 44 ± 3%, is denoted as X material; Unsaturated sulfonic acid salt, monomer a being mixed obtained mass percent concentration with water is the aqueous solution of 26 ± 1%, is denoted as Y material for subsequent use;
Polymerization: unsaturated Soxylat A 25-7 and water are added in polymerization reaction kettle, be stirred to unsaturated Soxylat A 25-7 to dissolve completely, add oxygenant, be stirred to evenly, start to add X material and Y material simultaneously, add time controling at 1-3 hour, 1-2h is incubated after interpolation, polyreaction terminates, and is neutralized to pH=6-7 with the alkaline solution that mass percent concentration is 20 ± 2%, obtained polyethers Early-strength polycarboxylate superplasticizer; Polymer quality percentage concentration is between 40%-55%.
2. described in claim 1 without the preparation method of thermal source Early-strength polycarboxylate superplasticizer, it is characterized in that, the mol ratio of described unsaturated Soxylat A 25-7, unsaturated acid derivative, unsaturated sulfonic acid salt, monomer a is 1:3-5:0.7-1.5:0.2-0.6; Oxygenant is the 0.8-1.2% of monomer total mass, and reductive agent is the 0.1-0.2% of monomer total mass, and chain-transfer agent is the 0.3-0.5% of monomer total mass; Described monomer total mass is the quality sum of unsaturated Soxylat A 25-7, unsaturated acid derivative, unsaturated sulfonic acid salt and monomer a.
3. described in claim 1 without the preparation method of thermal source Early-strength polycarboxylate superplasticizer, it is characterized in that, described unsaturated Soxylat A 25-7 is one or more the combination in allyl polyethenoxy ether, methacrylic Soxylat A 25-7 or isopentene Soxylat A 25-7 and derivative thereof, and corresponding molecular weight is 1000-3000.
4. described in claim 1 without the preparation method of thermal source Early-strength polycarboxylate superplasticizer, it is characterized in that, described unsaturated acid derivative is one or more the combination in (methyl) vinylformic acid, methylene-succinic acid, toxilic acid (acid anhydride).
5. described in claim 1 without the preparation method of thermal source Early-strength polycarboxylate superplasticizer, it is characterized in that, described unsaturated sulfonic acid salt is one or more the combination in sodium allylsulfonate, methylpropene sodium sulfonate, 2-acrylamide-2-methacrylic sulfonic acid.
6. described in claim 1 without the preparation method of thermal source Early-strength polycarboxylate superplasticizer, it is characterized in that, described monomer a comprises one or more the combination in trolamine, tri-isopropanolamine, di-alcohol monoisopropanolamine.
7. described in claim 1 without the preparation method of thermal source Early-strength polycarboxylate superplasticizer, it is characterized in that, described oxygenant comprises one or more the combination in hydrogen peroxide, benzoyl peroxide, tertbutyl peroxide, ammonium persulphate, Potassium Persulphate.
8. described in claim 1 without the preparation method of thermal source Early-strength polycarboxylate superplasticizer, it is characterized in that, described reductive agent comprises one or more the combination in xitix and sodium bisulfite, tartrate, rongalite, ferrous sulfate, ferrous pyrophosphate.
9. described in claim 1 without the preparation method of thermal source Early-strength polycarboxylate superplasticizer, it is characterized in that, described chain-transfer agent is the combination of one or more in Thiovanic acid, thiohydracrylic acid, mercaptoethanol, 3-thiohydracrylic acid;
Optional, described alkaline solution is one or more combination in sodium hydroxide, potassium hydroxide, ammoniacal liquor, thanomin.
10. the arbitrary described preparation method without thermal source Early-strength polycarboxylate superplasticizer of claim 1-9 prepare without thermal source Early-strength polycarboxylate superplasticizer.
CN201510192076.3A 2015-04-22 2015-04-22 Heat-source-free early strength polycarboxylate water reducer and preparation method thereof Pending CN104861122A (en)

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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
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CN110229283A (en) * 2018-09-28 2019-09-13 镇江苏博特新材料有限公司 A kind of method that room temperature prepares polycarboxylate water-reducer under alkaline condition
CN111592622A (en) * 2019-02-21 2020-08-28 天水师范学院 Method and device for preparing early-strength polycarboxylate superplasticizer
CN114591472A (en) * 2022-03-31 2022-06-07 华新水泥股份有限公司 High-solid-content early-strength viscosity-reduction type polycarboxylate superplasticizer and preparation method thereof
CN114656600A (en) * 2022-03-31 2022-06-24 华新水泥股份有限公司 Preparation method of high-solid-content early-strength polycarboxylate superplasticizer

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101497507A (en) * 2009-03-20 2009-08-05 武汉市联合石油化工有限责任公司 High-early strength antifreezing polycarboxylate high performance water reducing agent and preparation
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
CN102503217A (en) * 2011-11-08 2012-06-20 厦门路桥翔通建材科技有限公司 High slump loss resistant polycarboxylic acid high-performance water reducing agent and preparation method thereof
CN102515616A (en) * 2011-11-24 2012-06-27 上海大学 Composite slump-loss-resistant polycarboxylic acid water reducing agent and preparation method thereof
CN102952243A (en) * 2012-11-01 2013-03-06 重庆健杰科技有限公司 Poly carboxylic acid water reducing agent adopting tartaric acid as chain transfer agent, and preparation method thereof
CN103011660A (en) * 2012-12-21 2013-04-03 江西迪特科技有限公司 Method for preparing concrete water reducing agent, method for preparing concrete early strength agent through water reducing agent and construction method for concrete early strength agent
CN103011669A (en) * 2012-12-20 2013-04-03 南京瑞迪高新技术有限公司 Early-strength polycarboxylate superplasticizer and preparation method thereof
CN103373831A (en) * 2012-04-13 2013-10-30 深圳市迈地砼外加剂有限公司 Early-strength polycarboxylate superplasticizer and high-early-strength cement
CN103396028A (en) * 2013-08-09 2013-11-20 长沙加美乐素化工有限公司 High-early-strength polycarboxylate water reducer and preparation method thereof
CN103450412A (en) * 2013-09-16 2013-12-18 贵州科之杰新材料有限公司 Preparation method of ester early-strength polycarboxylic acid water reducing agent
CN103467669A (en) * 2013-08-23 2013-12-25 北京市建筑工程研究院有限责任公司 Early-strength polycarboxylate water-reducing agent and preparation method thereof
CN103772624A (en) * 2014-01-10 2014-05-07 陕西科技大学 Early-strength polycarboxylate concrete water-reducing agent and preparation method thereof
CN104030595A (en) * 2014-04-30 2014-09-10 岳阳跃坤环保建材科技有限公司 Compound concrete admixture with early strength and water reduction functions, and preparation method and application thereof
CN104193913A (en) * 2014-08-12 2014-12-10 陕西科技大学 Early-strength polycarboxylate concrete water reducing agent and preparation method thereof

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101497507A (en) * 2009-03-20 2009-08-05 武汉市联合石油化工有限责任公司 High-early strength antifreezing polycarboxylate high performance water reducing agent and preparation
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
CN102503217A (en) * 2011-11-08 2012-06-20 厦门路桥翔通建材科技有限公司 High slump loss resistant polycarboxylic acid high-performance water reducing agent and preparation method thereof
CN102515616A (en) * 2011-11-24 2012-06-27 上海大学 Composite slump-loss-resistant polycarboxylic acid water reducing agent and preparation method thereof
CN103373831A (en) * 2012-04-13 2013-10-30 深圳市迈地砼外加剂有限公司 Early-strength polycarboxylate superplasticizer and high-early-strength cement
CN102952243A (en) * 2012-11-01 2013-03-06 重庆健杰科技有限公司 Poly carboxylic acid water reducing agent adopting tartaric acid as chain transfer agent, and preparation method thereof
CN103011669A (en) * 2012-12-20 2013-04-03 南京瑞迪高新技术有限公司 Early-strength polycarboxylate superplasticizer and preparation method thereof
CN103011660A (en) * 2012-12-21 2013-04-03 江西迪特科技有限公司 Method for preparing concrete water reducing agent, method for preparing concrete early strength agent through water reducing agent and construction method for concrete early strength agent
CN103396028A (en) * 2013-08-09 2013-11-20 长沙加美乐素化工有限公司 High-early-strength polycarboxylate water reducer and preparation method thereof
CN103467669A (en) * 2013-08-23 2013-12-25 北京市建筑工程研究院有限责任公司 Early-strength polycarboxylate water-reducing agent and preparation method thereof
CN103450412A (en) * 2013-09-16 2013-12-18 贵州科之杰新材料有限公司 Preparation method of ester early-strength polycarboxylic acid water reducing agent
CN103772624A (en) * 2014-01-10 2014-05-07 陕西科技大学 Early-strength polycarboxylate concrete water-reducing agent and preparation method thereof
CN104030595A (en) * 2014-04-30 2014-09-10 岳阳跃坤环保建材科技有限公司 Compound concrete admixture with early strength and water reduction functions, and preparation method and application thereof
CN104193913A (en) * 2014-08-12 2014-12-10 陕西科技大学 Early-strength polycarboxylate concrete water reducing agent and preparation method thereof

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105254819A (en) * 2015-10-15 2016-01-20 中铁四局集团有限公司 Room-temperature preparation method of early strength type polycarboxylate superplasticizer
CN105293982A (en) * 2015-10-29 2016-02-03 中国建筑材料科学研究总院 Slump retention agent and preparation method thereof
CN105693946A (en) * 2016-01-25 2016-06-22 湖南省建筑工程集团总公司 Anti-crack high slump loss resistance concrete polycarboxylate superplasticizer
CN107759745A (en) * 2016-08-22 2018-03-06 新疆西部卓越建材有限公司 The non-evaporating foster ultra early-strength polycarboxylate water-reducer and preparation method thereof of prefabricated components
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
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
CN106632891A (en) * 2016-12-27 2017-05-10 陕西友邦新材料科技有限公司 Polycarboxylate superplasticizer mother solution based on steam-cured concrete and preparation method of polycarboxylate superplasticizer mother solution
CN107446090A (en) * 2017-09-07 2017-12-08 江苏百瑞吉新材料有限公司 A kind of synthetic method of Early-strength polycarboxylate superplasticizer
CN108003302A (en) * 2017-12-04 2018-05-08 岳阳东方雨虹防水技术有限责任公司 A kind of amidogen ether class ultra high early strength poly-carboxylic water-reducing agent and preparation method thereof
CN109265622A (en) * 2018-08-02 2019-01-25 四川恒泽建材有限公司 A kind of no heat source high-performance controlled-release polycarboxylic acid water reducing agent and preparation method thereof
CN110229283A (en) * 2018-09-28 2019-09-13 镇江苏博特新材料有限公司 A kind of method that room temperature prepares polycarboxylate water-reducer under alkaline condition
CN110229283B (en) * 2018-09-28 2021-09-28 镇江苏博特新材料有限公司 Method for preparing polycarboxylate superplasticizer at normal temperature under alkaline condition
CN109776722A (en) * 2019-02-11 2019-05-21 山东理工大学 Ternary graft copolymer and its preparation method and application
CN111592622A (en) * 2019-02-21 2020-08-28 天水师范学院 Method and device for preparing early-strength polycarboxylate superplasticizer
CN111592622B (en) * 2019-02-21 2022-06-10 天水师范学院 Method and device for preparing early-strength polycarboxylate superplasticizer
CN110128601A (en) * 2019-05-22 2019-08-16 上饶市天佳新型材料有限公司 A kind of Early-strength polycarboxylate superplasticizer and preparation method thereof
CN114591472A (en) * 2022-03-31 2022-06-07 华新水泥股份有限公司 High-solid-content early-strength viscosity-reduction type polycarboxylate superplasticizer and preparation method thereof
CN114656600A (en) * 2022-03-31 2022-06-24 华新水泥股份有限公司 Preparation method of high-solid-content early-strength polycarboxylate superplasticizer

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