CN102898057B - High-reduction modified aliphatic water reducing agent and preparation method thereof - Google Patents
High-reduction modified aliphatic water reducing agent and preparation method thereof Download PDFInfo
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- CN102898057B CN102898057B CN201210428351.3A CN201210428351A CN102898057B CN 102898057 B CN102898057 B CN 102898057B CN 201210428351 A CN201210428351 A CN 201210428351A CN 102898057 B CN102898057 B CN 102898057B
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- water reducing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 43
- 125000001931 aliphatic group Chemical group 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 7
- -1 ketone compound Chemical class 0.000 claims abstract description 28
- 230000001603 reducing effect Effects 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 230000001737 promoting effect Effects 0.000 claims description 16
- 239000006185 dispersion Substances 0.000 claims description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 9
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical group [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 claims description 5
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 5
- 235000010262 sodium metabisulphite Nutrition 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- POUXCZFBIBTXOL-UHFFFAOYSA-N C=CC(=O)C(=O)C(=O)C=C Chemical compound C=CC(=O)C(=O)C(=O)C=C POUXCZFBIBTXOL-UHFFFAOYSA-N 0.000 claims description 2
- 229920001732 Lignosulfonate Polymers 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- MLUCVPSAIODCQM-NSCUHMNNSA-N crotonaldehyde Chemical compound C\C=C\C=O MLUCVPSAIODCQM-NSCUHMNNSA-N 0.000 claims description 2
- MLUCVPSAIODCQM-UHFFFAOYSA-N crotonaldehyde Natural products CC=CC=O MLUCVPSAIODCQM-UHFFFAOYSA-N 0.000 claims description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 2
- 235000019357 lignosulphonate Nutrition 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical compound CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 claims description 2
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 claims description 2
- 235000010263 potassium metabisulphite Nutrition 0.000 claims description 2
- 239000013543 active substance Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract 2
- 239000002270 dispersing agent Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 6
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 230000003335 steric effect Effects 0.000 description 2
- 229920006318 anionic polymer Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a high-reduction modified aliphatic water reducing agent and a preparation method thereof. The water reducing agent is prepared from the following raw materials in parts by weight: pyrosulfite, ketone compound, aldehyde compound, dispersant, active agent, liquid alkali and water. The preparation method comprises the following steps of: adding the water, the pyrosulfite, the liquid alkali and the dispersant into a reaction container, heating, adding the ketone compound at the temperature of between 30 and 50 DEG C, and stirring; dripping a solution of the aldehyde compound for 1 to 3 hours, and controlling the dripping speed; and finally adding the active agent, heating to the temperature of between 80 and 100 DEG C, and performing polymerization reaction for 2 to 4 hours. The cheap pyrosulfite is used for replacing expensive sulfite, and a part of other cheap raw materials are used for the synthetic reaction, so the cost of the water reducing agent is effectively reduced; and by using the active agent containing a long side chain, the stereo-hindrance effect is improved, and the synthesized water reducing agent has a high water reducing effect and is high in adaptability.
Description
Technical field
The present invention relates to water reducer field, particularly relate to a kind of high water reducing type modified aliphatic water reducing agent and preparation method thereof.
Background technology
Along with the development of concrete technology, high efficiency water reducing agent has become most important integral part in concrete admixture.In at present domestic admixture market, high efficiency water reducing agent is mainly still taking naphthalene system, poly carboxylic acid as main.But naphthalene water reducer is subject to its structural constraint, cannot fundamentally improve concrete slump retaining performance; Though polycarboxylate water-reducer function of slump protection excellence is good with cement adaptability, because of expensive, its range of application is subject to certain restrictions.
Aliphatic water reducing agent is the novel water reducer of one growing up the eighties in last century.It is taking acetone, formaldehyde, sulphite etc. as main raw material, through oversulfonate, condensation and the anionic polymer tensio-active agent making.Aliphatic water reducing agent has that volume is low, sodium sulphate content is few (being less than 1%), winter is without crystallization, to features such as reinforcing bar non-corrodings, belongs to early strong non-research work of air entrained type water reducer, applies at present more in high-strength pipe pile is produced.But, along with the price of sulphite rises steadily, also increase the cost of aliphatic water reducing agent, in addition, but its water-reducing rate is slightly higher with respect to naphthalene system, and function of slump protection and adaptability are general, can not meet the requirement to its its high performance.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of cost that can effectively reduce water reducer, makes synthetic water reducer have higher water-reducing effect, high water reducing type modified aliphatic water reducing agent of better adaptability and preparation method thereof.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of high water reducing type modified aliphatic water reducing agent is provided, and it is prepared from by the raw material of following weight parts:
5 ~ 15 parts of pyrosulfites,
2 ~ 8 parts of ketone compounds,
5 ~ 40 parts of aldehyde compounds,
1 ~ 5 part of dispersion agent,
1 ~ 8 part of promoting agent,
2 ~ 15 parts of liquid caustic soda,
5 ~ 20 parts, water.
In a preferred embodiment of the present invention, described water reducer is prepared from by the raw material of following weight parts:
6 ~ 10 parts of pyrosulfites,
3 ~ 6 parts of ketone compounds,
10 ~ 35 parts of aldehyde compounds,
1 ~ 3 part of dispersion agent,
1 ~ 5 part of promoting agent,
3 ~ 10 parts of liquid caustic soda,
7 ~ 18 parts, water.
In a preferred embodiment of the present invention, described pyrosulfite is Sodium Pyrosulfite or potassium pyrosulfite.
In a preferred embodiment of the present invention, described dispersion agent is sulfonated lignin.
In a preferred embodiment of the present invention, described dispersion agent is sodium lignosulfonate.
In a preferred embodiment of the present invention, described promoting agent is nonionogenic tenside.
In a preferred embodiment of the present invention, described promoting agent is Determination of Polyoxyethylene Non-ionic Surfactants.
In a preferred embodiment of the present invention, described ketone compounds is acetone, pentanone, pimelinketone or acrylketone, and described aldehyde compound is formaldehyde, acetaldehyde, phenyl aldehyde or crotonaldehyde.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of preparation method of high water reducing type aliphatic water reducing agent is provided, comprises the following steps:
First water, pyrosulfite, liquid caustic soda, dispersion agent being added in reaction vessel according to parts by weight, carry out heat temperature raising, is to add ketone compounds under 30 ~ 50 DEG C of conditions in temperature, stirs 20 ~ 40 minutes; Then drip aldehyde compound solution, control rate of addition, dropwise at 1 ~ 3 h; Finally add promoting agent, be warming up to 80 ~ 100 DEG C, polyreaction 2 ~ 4 h, can obtain high water reducing type modified aliphatic water reducing agent.
The invention has the beneficial effects as follows:
1, the present invention replaces the high sulphite of price with low-cost pyrosulfite, has used other low-cost raw material of part to participate in building-up reactions simultaneously, effectively reduces the cost of water reducer.
2, the present invention has used the promoting agent containing long side chain, has improved space steric effect, makes synthetic water reducer have higher water-reducing effect, better adaptability.
Embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Embodiment 1
A kind of high water reducing type modified aliphatic water reducing agent, make in accordance with the following steps:
First 2 parts, 12 parts, water, 8 parts of Sodium Pyrosulfites, 5 parts of liquid caustic soda, sodium lignosulfonate dispersion agent being added in reaction vessel, carry out heat temperature raising, is under 50 DEG C of conditions, to add 5 parts, acetone in temperature, stirs 40 min; Then drip 20 parts of formaldehyde solutions, control rate of addition, dropwise at 2 h; Finally add 3 parts of allyl alcohol polyethenoxy ether promoting agents, be warming up to 80 DEG C, polyreaction 4 h, can obtain high water reducing type modified aliphatic water reducing agent.
Embodiment 2
A kind of high water reducing type modified aliphatic water reducing agent, make in accordance with the following steps:
First 1 part, 7 parts, water, 6 parts of Sodium Pyrosulfites, 3 parts of liquid caustic soda, sodium lignosulfonate dispersion agent being added in reaction vessel, carry out heat temperature raising, is under 30 DEG C of conditions, to add 3 parts, acetone in temperature, stirs 35 min; Then drip 10 parts of formaldehyde solutions, control rate of addition, dropwise at 1 h; Finally add 1 part of allyl alcohol polyethenoxy ether promoting agent, be warming up to 90 DEG C, polyreaction 3 h, can obtain high water reducing type modified aliphatic water reducing agent.
Embodiment 3
A kind of high water reducing type modified aliphatic water reducing agent, make in accordance with the following steps:
First 3 parts, 18 parts, water, 10 parts of Sodium Pyrosulfites, 10 parts of liquid caustic soda, sodium lignosulfonate dispersion agent being added in reaction vessel, carry out heat temperature raising, is under 40 DEG C of conditions, to add 6 parts, acetone in temperature, stirs 30 min; Then drip 32 parts of formaldehyde solutions, control rate of addition, dropwise at 3 h; Finally add 5 parts of allyl alcohol polyethenoxy ether promoting agents, be warming up to 100 DEG C, polyreaction 2 h, can obtain high water reducing type modified aliphatic water reducing agent.
The present invention replaces the high sulphite of price with low-cost pyrosulfite, has used other low-cost raw material of part to participate in building-up reactions simultaneously, effectively reduces the cost of water reducer.The present invention has used the promoting agent containing long side chain, has improved space steric effect, makes synthetic water reducer have higher water-reducing effect, better adaptability.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification sheets of the present invention to do, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. a high water reducing type modified aliphatic water reducing agent, is characterized in that, it is prepared from by the raw material of following weight parts:
5 ~ 15 parts of pyrosulfites,
2 ~ 8 parts of ketone compounds,
5 ~ 40 parts of aldehyde compounds,
1 ~ 5 part of dispersion agent,
1 ~ 8 part of promoting agent,
2 ~ 15 parts of liquid caustic soda,
5 ~ 20 parts, water,
Wherein, described promoting agent is nonionogenic tenside.
2. high water reducing type modified aliphatic water reducing agent according to claim 1, is characterized in that, it is prepared from by the raw material of following weight parts:
6 ~ 10 parts of pyrosulfites,
3 ~ 6 parts of ketone compounds,
10 ~ 35 parts of aldehyde compounds,
1 ~ 3 part of dispersion agent,
1 ~ 5 part of promoting agent,
3 ~ 10 parts of liquid caustic soda,
7 ~ 18 parts, water,
Wherein, described promoting agent is nonionogenic tenside.
3. high water reducing type modified aliphatic water reducing agent according to claim 1 and 2, is characterized in that, described pyrosulfite is Sodium Pyrosulfite or potassium pyrosulfite.
4. high water reducing type modified aliphatic water reducing agent according to claim 1 and 2, is characterized in that, described dispersion agent is sulfonated lignin.
5. high water reducing type modified aliphatic water reducing agent according to claim 4, is characterized in that, described dispersion agent is sodium lignosulfonate.
6. high water reducing type modified aliphatic water reducing agent according to claim 1 and 2, is characterized in that, described promoting agent is Determination of Polyoxyethylene Non-ionic Surfactants.
7. high water reducing type modified aliphatic water reducing agent according to claim 1 and 2, is characterized in that, described ketone compounds is acetone, pentanone, pimelinketone or acrylketone, and described aldehyde compound is formaldehyde, acetaldehyde, phenyl aldehyde or crotonaldehyde.
8. a method of preparing the high water reducing type modified aliphatic water reducing agent of claim 1 or 2, is characterized in that, comprises the following steps:
First water, pyrosulfite, liquid caustic soda, dispersion agent being added in reaction vessel according to parts by weight, carry out heat temperature raising, is to add ketone compounds under 30 ~ 50 DEG C of conditions in temperature, stirs 20 ~ 40 min; Then drip aldehyde compound solution, control rate of addition, dropwise at 1 ~ 3 h; Finally add promoting agent, be warming up to 80 ~ 100 DEG C, polyreaction 2 ~ 4 h, can obtain high water reducing type modified aliphatic water reducing agent.
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| CN106396456B (en) * | 2016-08-26 | 2018-07-03 | 河南科之杰新材料有限公司 | A kind of preparation method of aliphatic powder water-reducing agent |
| CN109553326A (en) * | 2018-11-24 | 2019-04-02 | 南京福盛建材有限公司 | A kind of high-thin arch dam aliphatic water reducing agent and preparation method thereof |
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|---|---|---|---|---|
| CN1974467A (en) * | 2006-12-07 | 2007-06-06 | 华南理工大学 | Lignosulfonate series air entraining and water reducing admixture for concrete and its prepn process and application |
| CN101328037A (en) * | 2008-07-31 | 2008-12-24 | 华南理工大学 | Alkali lignose concrete air-leading water-reducing agent, preparation and use thereof |
| CN101665337A (en) * | 2009-09-03 | 2010-03-10 | 南京林业大学 | Modified aliphatic high-efficiency water-reducing agent by utilizing lignosulfonate and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1974467A (en) * | 2006-12-07 | 2007-06-06 | 华南理工大学 | Lignosulfonate series air entraining and water reducing admixture for concrete and its prepn process and application |
| CN101328037A (en) * | 2008-07-31 | 2008-12-24 | 华南理工大学 | Alkali lignose concrete air-leading water-reducing agent, preparation and use thereof |
| CN101665337A (en) * | 2009-09-03 | 2010-03-10 | 南京林业大学 | Modified aliphatic high-efficiency water-reducing agent by utilizing lignosulfonate and preparation method thereof |
Non-Patent Citations (2)
| Title |
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| 王子明等.脂肪族高效减水剂的吸附特征与作用机理.《武汉理工大学学报》.2005,(第09期), |
| 脂肪族高效减水剂的吸附特征与作用机理;王子明等;《武汉理工大学学报》;20050925(第09期);全文 * |
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Denomination of invention: High water reducing modified aliphatic water reducing agent and its preparation method Effective date of registration: 20230625 Granted publication date: 20140611 Pledgee: Guangdong Development Bank Co.,Ltd. Jiangmen branch Pledgor: GUANGDONG HONGQIU BUILDING MATERIALS TECHNOLOGY CO.,LTD. Registration number: Y2023980045531 |