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Organosilicon emulsion defoamer and preparation method thereof

A technology of silicone emulsion and defoamer, applied in the field of defoamer, can solve the problems of reduced production efficiency, slow defoaming efficiency, increased production steps, etc., and achieve the effects of improving production efficiency, reducing stirring steps, and improving dispersion speed

Inactive Publication Date: 2020-08-25
南京澳莉峰环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing silicone emulsion defoamer has a slow defoaming efficiency when used. At the same time, when the defoamer is poured into the material that needs to be defoamed, the material needs to be stirred continuously to speed up the defoaming efficiency. This method inadvertently increases the production steps, resulting in the problem of lower production efficiency.

Method used

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  • Organosilicon emulsion defoamer and preparation method thereof

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Embodiment 1

[0031] The invention provides a silicone emulsion defoamer, in proportion, the defoamer is prepared from the following materials:

[0032] 30% silicone oil, 10% stabilizer, 45% water, 3% dispersant, 6% liquid carbon dioxide and 6% catalyst.

[0033] Wherein, the silicone oil is methyl silicone oil, and the telomerization ratio between the preparation raw material ring body, the head agent and the catalyst in the silicone oil is 1:0.5:0.2.

[0034] Wherein, the stabilizer is preferably perchlorate.

[0035] Among them, the catalyst is preferably a liquid catalyst.

[0036] A kind of preparation method of organosilicon emulsion defoamer, the preparation method of this defoamer is as follows:

[0037] Step 1: Stir the silicone oil with stabilizer and water for 90 minutes;

[0038] Step 2: After the stirring is completed, let it stand for 2 days, and then stir again;

[0039] Step 3: Add dispersant while stirring, stir at ambient temperature between 45°C and 50°C, and stir for...

Embodiment 2

[0042] The invention provides a silicone emulsion defoamer, which is prepared from the following materials:

[0043] Silicone oil, stabilizer, water, dispersant, liquid carbon dioxide and catalyst.

[0044] As a preferred version of a silicone emulsion defoamer according to the present invention, wherein: in proportion, the defoamer is prepared from the following materials:

[0045] 35% silicone oil, 7% stabilizer, 42% water, 5% dispersant, 8% liquid carbon dioxide and 3% catalyst.

[0046] Wherein, the silicone oil is methyl silicone oil, and the telomerization ratio between the preparation raw material ring body, the head agent and the catalyst in the silicone oil is 1:0.5:0.2.

[0047] Wherein, the stabilizer is preferably hydrotalcite series.

[0048] Among them, the catalyst is preferably a liquid catalyst.

[0049] A kind of preparation method of organosilicon emulsion defoamer, the preparation method of this defoamer is as follows:

[0050] Step 1: Stir the silicone...

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Abstract

The invention belongs to the technical field of defoamers, and particularly relates to an organosilicon emulsion defoamer and a preparation method thereof. The preparation method of the defoamer comprises the following steps that 1, stabilizer mixed water is added into silicone oil, and stirring is conducted for 90-120 min; 2, after stirring is completed, standing is conducted for 2-5 days, and then stirring is conducted again; 3, a dispersing agent is added while stirring is conducted, stirring is conducted at an environment temperature ranging from 45 DEG C to 50 DEG C, and stirring time ranges from 60 min to 90 min; and 4, after the stirring is completed, liquid carbon dioxide and a catalyst are added in a pressurized state, and the defoamer is obtained pressurization is completed. According to the invention, the dispersing agent and the catalyst are added into the raw material silicone oil of the defoamer in a mixed manner, so the dispersing efficiency of the defoamer added into adefoaming material is improved, the dispersing speed of the defoamer is increased by utilizing the catalytic performance of the catalyst, the purpose of quickly defoaming the material is achieved, stirring steps are reduced, and production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of defoamers, in particular to a silicone emulsion defoamer and a preparation method thereof. Background technique [0002] Defoaming agent can reduce the surface tension of water, solution, suspension, etc., prevent the formation of foam, or reduce or eliminate the original foam. [0003] The defoamer should have the following properties: ①Strong defoaming power and less dosage; ②Adding to the foaming system does not affect the basic properties of the system, that is, it does not react with the defoaming system; ③Small surface tension; ④With the surface ⑤Good heat resistance; ⑥Good diffusivity and permeability, high positive spreading coefficient; ⑦Chemical stability, strong oxidation resistance; ⑧Good gas solubility and permeability; The solubility in the solution is small; ⑩ no physiological activity, high safety. [0004] Defoamers are widely used, such as food industry, paper industry, water treatment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04
CPCB01D19/0409
Inventor 李飞狄海燕
Owner 南京澳莉峰环保科技有限公司
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