CN105542093A - Synthesis process of polyether type polycarboxylate water reducers with high water reduction property - Google Patents
Synthesis process of polyether type polycarboxylate water reducers with high water reduction property Download PDFInfo
- Publication number
- CN105542093A CN105542093A CN201610145250.3A CN201610145250A CN105542093A CN 105542093 A CN105542093 A CN 105542093A CN 201610145250 A CN201610145250 A CN 201610145250A CN 105542093 A CN105542093 A CN 105542093A
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- CN
- China
- Prior art keywords
- raw material
- polycarboxylate water
- synthesis technique
- water
- high water
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/32—Polyethers, e.g. alkylphenol polyglycolether
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a synthesis process of polyether type polycarboxylate water reducers with a high water reduction property. The synthesis process comprises steps as follows: a first raw material is dropwise added to heated water while a second raw material is dropwise added, monomer sodium vinylsulfonate is dropwise added after the raw materials are dropwise added, then, thermal insulation, cooling and neutralization are performed, and the polyether type polycarboxylate water reducers are obtained, wherein the first raw material is a mixed aqueous solution of allyl polyethylene glycol and maleic anhydride monomers and has the mass percentage being 50%-70%, and the second raw material is an initiator aqueous solution with the mass percentage being 1%-5%. By means of the chemical synthesis method, various raw materials and a production process are improved, the performance of the polyether type polycarboxylate water reducers in concrete is improved, and the use range is enlarged.
Description
Technical field
The present invention relates to a kind of synthesis technique of water reducer, particularly relate to a kind of synthesis technique of high water reducing type polyethers polycarboxylate water-reducer.
Background technology
Polyethers polycarboxylate water-reducer not only production technique is simple, also has simultaneously and has the features such as better adaptability, concrete slump loss are little to cement.But there is certain difference in the production unit adopted due to each production unit, catalyst technology, management of water equality, causes the quality of polyethers polycarboxylate water-reducer to vary.The synthesis of polyethers water reducer is Raolical polymerizable, Raolical polymerizable can be divided into four-stage on microcosmic: chain initiation, chainpropagation, chain termination and chain tra nsfer, it is the key controlling total polymerization speed that its medium chain causes, by the continuous increase of free radical, the continuous increase of main chain, makes water reducer be provided with sterically hindered ability.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of synthesis technique of high water reducing type polyethers polycarboxylate water-reducer, can guarantee the performance of water reducer in concrete.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the synthesis technique providing a kind of high water reducing type polyethers polycarboxylate water-reducer, comprising step is: in the water of heating, drip the first raw material, while drip the second raw material, monomer vinyl sodium sulfonate is dripped again after dropping terminates, insulation after dripping, cooling, neutralization, obtain polyethers polycarboxylate water-reducer, wherein said first raw material is mass percent is the allyl polyglycol of 50%-70% and the mixed aqueous solution of maleic anhydride monomer, the initiator solution of described second raw material to be mass percent be 1%-5%.
In a preferred embodiment of the present invention, described synthesis technique carries out in the there-necked flask that thermometer, agitator, condensing works, dropping funnel, nitrogen protection device are housed.
In a preferred embodiment of the present invention, the temperature of the water of described heating is 80-90 DEG C.
In a preferred embodiment of the present invention, the time for adding of described first raw material and described second raw material is 4-5h.
In a preferred embodiment of the present invention, the time for adding of described monomer vinyl sodium sulfonate is 2h; Described soaking time is 3h.
In a preferred embodiment of the present invention, described neutralization adopts sodium hydroxide to be neutralized to pH value be 7.
The invention has the beneficial effects as follows: the synthesis technique of high water reducing type polyethers polycarboxylate water-reducer of the present invention, by chemical synthesis process, improve various starting material and production technique, improve polyethers polycarboxylate water-reducer in concrete performance, expand use range.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of synthesis technique of high water reducing type polyethers polycarboxylate water-reducer is provided; comprising step is: in the there-necked flask that thermometer, agitator, condensing works, dropping funnel, nitrogen protection device are housed, add a certain amount of water; be heated to 80-90 DEG C; while drip the first raw material in the water of heating; while drip the second raw material; even dropping 4-5h drips off; and then evenly drip monomer vinyl sodium sulfonate; 2h drips off; insulation 3h; cooling, adopting sodium hydroxide to be neutralized to pH value is 7, obtains polyethers polycarboxylate water-reducer.Wherein said first raw material is mass percent is the allyl polyglycol of 50%-70% and the mixed aqueous solution of maleic anhydride monomer, the initiator solution of described second raw material to be mass percent be 1%-5%.
The invention has the beneficial effects as follows: by chemical synthesis process, improve various starting material and production technique, improve polyethers polycarboxylate water-reducer in concrete performance, expand use range.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. the synthesis technique of one kind high water reducing type polyethers polycarboxylate water-reducer, it is characterized in that, comprising step is: in the water of heating, drip the first raw material, while drip the second raw material, monomer vinyl sodium sulfonate is dripped again after dropping terminates, insulation after dripping, cooling, neutralization, obtain polyethers polycarboxylate water-reducer, wherein said first raw material is mass percent is the allyl polyglycol of 50%-70% and the mixed aqueous solution of maleic anhydride monomer, the initiator solution of described second raw material to be mass percent be 1%-5%.
2. the synthesis technique of high water reducing type polyethers polycarboxylate water-reducer according to claim 1, it is characterized in that, described synthesis technique carries out in the there-necked flask that thermometer, agitator, condensing works, dropping funnel, nitrogen protection device are housed.
3. the synthesis technique of high water reducing type polyethers polycarboxylate water-reducer according to claim 1, is characterized in that, the temperature of the water of described heating is 80-90 DEG C.
4. the synthesis technique of high water reducing type polyethers polycarboxylate water-reducer according to claim 1, is characterized in that, the time for adding of described first raw material and described second raw material is 4-5h.
5. the synthesis technique of high water reducing type polyethers polycarboxylate water-reducer according to claim 1, is characterized in that, the time for adding of described monomer vinyl sodium sulfonate is 2h; Described soaking time is 3h.
6. the synthesis technique of high water reducing type polyethers polycarboxylate water-reducer according to claim 1, is characterized in that, described neutralization adopts sodium hydroxide to be neutralized to pH value be 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145250.3A CN105542093A (en) | 2016-03-15 | 2016-03-15 | Synthesis process of polyether type polycarboxylate water reducers with high water reduction property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145250.3A CN105542093A (en) | 2016-03-15 | 2016-03-15 | Synthesis process of polyether type polycarboxylate water reducers with high water reduction property |
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| Publication Number | Publication Date |
|---|---|
| CN105542093A true CN105542093A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610145250.3A Pending CN105542093A (en) | 2016-03-15 | 2016-03-15 | Synthesis process of polyether type polycarboxylate water reducers with high water reduction property |
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| CN (1) | CN105542093A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289695A (en) * | 2018-09-26 | 2019-02-01 | 天津亿利科能源科技发展股份有限公司 | A kind of carboxylic acid surfactant and its preparation method and application |
| CN110467373A (en) * | 2019-08-27 | 2019-11-19 | 苏州市兴邦化学建材有限公司 | A kind of liquid levelling agent and its synthetic method for very-high performance fiber concrete |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007314790A (en) * | 2007-05-23 | 2007-12-06 | Nippon Shokubai Co Ltd | Graft polymer and its production method and use |
| CN102603223A (en) * | 2012-02-13 | 2012-07-25 | 江苏奥莱特新材料有限公司 | Polycarboxylic acid water reducer with solid raw materials and preparing process of the polycarboxylic acid water reducer |
-
2016
- 2016-03-15 CN CN201610145250.3A patent/CN105542093A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007314790A (en) * | 2007-05-23 | 2007-12-06 | Nippon Shokubai Co Ltd | Graft polymer and its production method and use |
| CN102603223A (en) * | 2012-02-13 | 2012-07-25 | 江苏奥莱特新材料有限公司 | Polycarboxylic acid water reducer with solid raw materials and preparing process of the polycarboxylic acid water reducer |
Non-Patent Citations (1)
| Title |
|---|
| 郑立新: "聚醚类聚羧酸减水剂合成工艺及性能研究", 《新型建筑材料》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289695A (en) * | 2018-09-26 | 2019-02-01 | 天津亿利科能源科技发展股份有限公司 | A kind of carboxylic acid surfactant and its preparation method and application |
| CN110467373A (en) * | 2019-08-27 | 2019-11-19 | 苏州市兴邦化学建材有限公司 | A kind of liquid levelling agent and its synthetic method for very-high performance fiber concrete |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160504 |