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Fatty alcohol emulsion defoamer stabilized by water-soluble homopolymer and preparation method thereof

A technology of water-soluble alcohol and fatty alcohol, which is applied in the preparation of fatty alcohol emulsion defoamer and in the field of fatty alcohol emulsion defoamer, which can solve the problems of less emulsion phase separation, less viscosity increase and gelling, and higher stability, and achieve Inhibition of gelation and thickening, excellent stability, and mild use conditions

Active Publication Date: 2018-10-19
HEFEI ALL PLUS ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the aforementioned method of adding a stabilizer to the emulsion still cannot obtain satisfactory effects of less phase separation, less viscosification and gelation, and high stability of the emulsion.

Method used

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  • Fatty alcohol emulsion defoamer stabilized by water-soluble homopolymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation method of the stable fatty alcohol emulsion defoamer of water-soluble homopolymer comprises the following steps:

[0032] (1) Prepare the oil phase:

[0033] Take an appropriate amount of fatty alcohol and organic hydrocarbons and mix them into the reaction vessel, heat and stir at a temperature t1 until an oil phase is formed, the temperature t1 is higher than the higher melting point of the fatty alcohol and organic hydrocarbons, and the temperature t1 is at least is 110°C.

[0034] in:

[0035] Fatty alcohol is selected lauryl alcohol, and its weight is 10g;

[0036] Organic hydrocarbons are diesel oil, the weight of which is 1g;

[0037] t1=100°C.

[0038] (2) Prepare the water phase:

[0039] Take an appropriate amount of water-soluble 2-acrylamide-2-methylpropanesulfonic acid homopolymer and / or its salt, water-soluble alcohols, and non-cationic surfactants, mix them, add them to the reaction kettle, heat and stir at temperature t2 Uniform unt...

Embodiment 2

[0048] The preparation method of the stable fatty alcohol emulsion defoamer of water-soluble homopolymer comprises the following steps:

[0049] (1) Prepare the oil phase:

[0050] Take an appropriate amount of fatty alcohol and organic hydrocarbons and mix them into the reaction vessel, heat and stir at a temperature t1 until an oil phase is formed, the temperature t1 is higher than the higher melting point of the fatty alcohol and organic hydrocarbons, and the temperature t1 is at least is 110°C.

[0051] in:

[0052] Fatty alcohol selects stearyl alcohol for use, and its weight is 15g;

[0053] Organic hydrocarbons select paraffin for use, and its weight is 2g;

[0054] t1=110°C.

[0055] (2) Prepare the water phase:

[0056] Take an appropriate amount of water-soluble 2-acrylamide-2-methylpropanesulfonic acid homopolymer and / or its salt, water-soluble alcohols, and non-cationic surfactants, mix them, add them to the reaction kettle, heat and stir at temperature t2 Un...

Embodiment 3

[0065] The preparation method of the stable fatty alcohol emulsion defoamer of water-soluble homopolymer comprises the following steps:

[0066] (1) Prepare the oil phase:

[0067] Take an appropriate amount of fatty alcohol and organic hydrocarbons and mix them into the reaction vessel, heat and stir at a temperature t1 until an oil phase is formed, the temperature t1 is higher than the higher melting point of the fatty alcohol and organic hydrocarbons, and the temperature t1 is at least is 110°C.

[0068] in:

[0069] Fatty alcohol selects C22 alcohol for use, and its weight is 90g;

[0070] Organic hydrocarbons select microcrystalline wax for use, and its weight is 6g;

[0071] t1=110°C.

[0072] (2) Prepare the water phase:

[0073] Take an appropriate amount of water-soluble 2-acrylamide-2-methylpropanesulfonic acid homopolymer and / or its salt, water-soluble alcohols, and non-cationic surfactants, mix them, add them to the reaction kettle, heat and stir at temperature ...

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Abstract

The invention discloses a stable water-soluble homopolymer fatty-alcohol emulsion defoaming agent. The dofoaming agent is prepared from the following components in percentage by weight: 10 percent to 90 percent of fatty alcohol, 1 percent to 40 percent of organic hydrocarbons, 0.01 percent to 10 percent of water-soluble 2-acrylamido-2-methylpropane sulfonic acid homopolymer and / or salt thereof, 0.01 percent to 10 percent of water-soluble alcohols and the balance of non-cationic surfactant. The defoaming agent disclosed by the invention has the advantages that latex phase separation during a storage period is less, the gelatinizing and tackifying operations are inhibited, and the emulsion stability is better. The invention further discloses a preparation method of the stable water-soluble homopolymer fatty-alcohol emulsion defoaming agent.

Description

technical field [0001] The invention relates to the technical field of chemical raw materials, in particular to a water-soluble homopolymer-stabilized fatty alcohol emulsion defoamer. The invention also relates to a preparation method of the water-soluble homopolymer-stabilized fatty alcohol emulsion defoamer. Background technique [0002] In many industrial processes, it is necessary to handle aqueous solutions and aqueous suspensions whose components have a tendency to foam, since the formation of foam is likely to make the process difficult. According to analysis, foams are mostly permanently formed by coalescence of gas bubbles, and the introduction of air into these systems in a finely dispersed, stable form has also proved problematic. Therefore, it is also important to reduce the air content in these systems. [0003] At present, defoaming operations are mostly completed by defoaming agents, and the commonly used defoaming agents are emulsified fatty alcohol defoami...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D19/04
CPCB01D19/0404
Inventor 杨明王建民李辉
Owner HEFEI ALL PLUS ENVIRONMENTAL TECH CO LTD
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