CN109867477A - A kind of monoisopropanolamine slow setting air entraining agent - Google Patents
A kind of monoisopropanolamine slow setting air entraining agent Download PDFInfo
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- CN109867477A CN109867477A CN201711254824.1A CN201711254824A CN109867477A CN 109867477 A CN109867477 A CN 109867477A CN 201711254824 A CN201711254824 A CN 201711254824A CN 109867477 A CN109867477 A CN 109867477A
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- monoisopropanolamine
- air entraining
- entraining agent
- water
- slow setting
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of monoisopropanolamine slow setting air entraining agents and preparation method thereof, the product belongs to chemical building material field, produce the raw material that the product uses includes: monoisopropanolamine 13-15% by weight ratio, water 65%, water-soluble poval 10%, lauryl sodium sulfate air entraining agent 10%-12%, by blending at different temperatures come finished product, product has good slow setting and bleed effect, it is added in concrete the workability that can significantly improve concrete, pumpability, freeze-thaw resistance, durability, it is impervious, it also can be further improved the water-reducing rate of concrete or mortar, reduce the ratio of mud, achieve the purpose that further to improve concrete performance.
Description
Technical field
Product of the present invention category chemical building material field more particularly to a kind of monoisopropanolamine slow setting air entraining agent and preparation method thereof.
Background technique
The effect of concrete retarder be delay concrete coagulating time and to the additive that later strength has no significant effect,
Retarder is mixed in concrete, its purpose is to extend the hydration and hardening time of cement, concrete retarder is many kinds of,
Monoisopropanolamine in organic amine is exactly a kind of good material that can make concrete retarding, and single monoisopropanolamine is dissolved in water just
It is a kind of concrete retarder, also there is humidification.In order to meet the needs of concrete mortar is to bleed, slow setting can be re-dubbed
Air entraining agent.The present invention is a kind of monoisopropanolamine slow setting air entraining agent, with monoisopropanolamine, water, water-soluble poval, dodecane
Base sodium sulphate air entraining agent is raw material, using chemical reaction kettle as reaction vessel, to prepare monoisopropanolamine slow setting air entraining agent, this method
Simple process, reaction condition is mild, product have good slow setting and bleed effect, be added in concrete can significantly improve it is mixed
Coagulate workability, the pumpability, freeze-thaw resistance, durability, impermeability of soil, moreover it is possible to further increase the diminishing of concrete or mortar
Rate reduces the ratio of mud, achievees the purpose that further to improve concrete performance.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of monoisopropanolamine slow setting air entraining agents and preparation method thereof, produce the production
The raw material that product use includes: monoisopropanolamine 13-15%, water 65%, water-soluble poval 10%, dodecyl by weight ratio
Sodium sulphate air entraining agent 10%-12%.
The present invention can be achieved through the following technical solutions:
(1) water of formula ratio is sent into chemical reaction kettle, temperature is increased to 45-47 DEG C, starts to stir, be added while stirring
The monoisopropanolamine of formula ratio keeps temperature-resistant after mixing, and the water-soluble poval of formula ratio is added, and stirring is equal
Even, insulation reaction was cooled to room temperature after 1.0-1.2 hours.
(2) continue to stir, the lauryl sodium sulfate air entraining agent of formula ratio is added while stirring, obtains into after mixing evenly
Product.
Preferably, the purity of the monoisopropanolamine is 80%.
Preferably, the purity of the lauryl sodium sulfate air entraining agent is 70%.
The beneficial effects of the present invention are: providing a kind of monoisopropanolamine slow setting air entraining agent and preparation method thereof, the preparation
Method and process is simple, and reaction condition is mild, and product has good slow setting and bleed effect, and being added in concrete significantly to mention
Workability, pumpability, freeze-thaw resistance, durability, the impermeability of high concrete, moreover it is possible to further increase subtracting for concrete or mortar
Water rate reduces the ratio of mud, achievees the purpose that further to improve concrete performance.
Specific embodiment
Embodiment 1
The water that total amount is 65% will be accounted for be sent into chemical reaction kettle, temperature is increased to 45 DEG C, starts to stir, be added while stirring
The monoisopropanolamine that total amount is 13% is accounted for, keeps temperature-resistant after mixing, by the water solubility for accounting for total amount and being 10% of formula ratio
Polyvinyl alcohol is added, and stirs evenly, insulation reaction was cooled to room temperature after 1.2 hours；Continue to stir, is added accounts for total amount while stirring
For 12% lauryl sodium sulfate air entraining agent, finished product is obtained after mixing evenly.
Embodiment 2
The water that total amount is 65% will be accounted for be sent into chemical reaction kettle, temperature is increased to 46 DEG C, starts to stir, be added while stirring
The monoisopropanolamine that total amount is 14% is accounted for, keeps temperature-resistant after mixing, by the water solubility for accounting for total amount and being 10% of formula ratio
Polyvinyl alcohol is added, and stirs evenly, insulation reaction was cooled to room temperature after 1.1 hours；Continue to stir, is added accounts for total amount while stirring
For 11% lauryl sodium sulfate air entraining agent, finished product is obtained after mixing evenly.
Embodiment 3
The water that total amount is 65% will be accounted for be sent into chemical reaction kettle, temperature is increased to 47 DEG C, starts to stir, be added while stirring
The monoisopropanolamine that total amount is 15% is accounted for, keeps temperature-resistant after mixing, by the water solubility for accounting for total amount and being 10% of formula ratio
Polyvinyl alcohol is added, and stirs evenly, insulation reaction was cooled to room temperature after 1.2 hours；Continue to stir, is added accounts for total amount while stirring
For 10% lauryl sodium sulfate air entraining agent, finished product is obtained after mixing evenly.
Claims (3)
1. a kind of monoisopropanolamine slow setting air entraining agent, produce the raw material that the product uses includes: monoisopropanolamine by weight ratio
13-15%, water 65%, water-soluble poval 10%, lauryl sodium sulfate air entraining agent 10%-12%, it is characterized in that:
(1) water of formula ratio is sent into chemical reaction kettle, temperature is increased to 45-47 DEG C, starts to stir, be added while stirring
The monoisopropanolamine of formula ratio keeps temperature-resistant after mixing, and the water-soluble poval of formula ratio is added, and stirring is equal
Even, insulation reaction was cooled to room temperature after 1.0-1.2 hours；
(2) continue to stir, the lauryl sodium sulfate air entraining agent of formula ratio is added while stirring, obtains finished product after mixing evenly.
2. a kind of monoisopropanolamine slow setting air entraining agent according to claim 1, the first step are characterized in: described one is different
The purity of Propanolamine is 80%.
3. a kind of monoisopropanolamine slow setting air entraining agent according to claim 1, second step are characterized in: described 12
The purity of sodium alkyl sulfate air entraining agent is 70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711254824.1A CN109867477A (en) | 2017-12-02 | 2017-12-02 | A kind of monoisopropanolamine slow setting air entraining agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711254824.1A CN109867477A (en) | 2017-12-02 | 2017-12-02 | A kind of monoisopropanolamine slow setting air entraining agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109867477A true CN109867477A (en) | 2019-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711254824.1A Pending CN109867477A (en) | 2017-12-02 | 2017-12-02 | A kind of monoisopropanolamine slow setting air entraining agent |
Country Status (1)
| Country | Link |
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| CN (1) | CN109867477A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110963777A (en) * | 2019-12-28 | 2020-04-07 | 陕西凝远新材料科技股份有限公司 | Autoclaved aerated concrete block produced by dry soil silt and preparation method thereof |
-
2017
- 2017-12-02 CN CN201711254824.1A patent/CN109867477A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110963777A (en) * | 2019-12-28 | 2020-04-07 | 陕西凝远新材料科技股份有限公司 | Autoclaved aerated concrete block produced by dry soil silt and preparation method thereof |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190611 |