Defoaming agent with good water dispersibility and preparation method of defoaming agent

A technology with good dispersibility and defoaming agent, which is applied in separation methods, foam dispersion/prevention, chemical instruments and methods, etc., can solve the problems of slow defoaming speed, unfavorable promotion and use, poor defoaming effect, etc., to achieve Effect of improving high temperature and alkali resistance

Inactive Publication Date: 2017-09-01
合肥裕亿农业技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the defoamers produced in the existing market mostly have the problems of slow defoaming speed and poor defoaming effect
[0003] Currently existing defoamers, such as CN201180071397 disclosed in the Chinese patent database, a kind of defoamer, etc., its technological process is more complicated, it can not defoam and suppress foam at the same time, it is not conducive to popularization and use, and research shows The mass fraction and molecular structure of active agents such as silicone resin and sodium bentonite solution have traditional Chinese medicine effects on the main application performance of the defoamer. The defoamer emulsion is compounded with active agent components such as silicone resin and sodium bentonite solution. The defoaming time, water dispersibility, and high temperature resistance have been greatly improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A defoamer with good water dispersibility is characterized in that: it is made from the following raw materials in parts by weight:

[0016] Polyether 100-130, dimethylformamide 8-10, p-xylene 50-60, toluene 10-20, cyclopentane 25-35, hydrophobic silica 30-50, chloroplatinic acid 23-34, Powdered sodium silicate 10-11, waste concrete powder 12-13, methyl acrylate 10-12, paraffin wax 70-150, sodium bentonite solution 6-9, sodium secondary alkyl sulfonate 4-6, sorbitol 3 -4. Sodium hydroxide 50-60, polycarboxylate polyacrylic acid 9-10, silicone resin 12-13.

[0017] The preparation method of the defoamer with good water dispersibility is characterized in that: the preparation method comprises the following steps:

[0018] Process (1): add polyether and toluene into the container, stir with nitrogen for 10-13 min, heat up to 100-130 °C, dropwise add chloroplatinic acid solution, react under nitrogen protection for 2-3 h; pass nitrogen to remove air, The reaction is carri...

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PUM

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Abstract

The invention discloses a defoaming agent with good water dispersibility. The defoaming agent is characterized by being prepared from the following raw materials in parts by weight: 100-130 parts of polyether, 8-10 parts of dimethylformamide, 50-60 parts of paraxylene, 10-20 parts of methylbenzene, 25-35 parts of cyclopentane, 3-5 parts of hydrophobic silica, 23-34 parts of chloroplatinic acid, 10-11 parts of powdery sodium silicate, 12-13 parts of waste concrete micropowder, 10-12 parts of methyl acrylate and 70-150 parts of paraffin.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis, in particular to a defoamer with good water dispersibility and a preparation method thereof. Background technique [0002] Foam is a thermodynamically unstable system and cannot be stable. The thermodynamic instability of foam is due to the fact that the total liquid surface area of ​​the system is greatly reduced after the bubble is broken, so the system energy (free energy) is greatly reduced. Defoamers, also known as defoamers or foam breakers, will produce many foams that affect production during industrial production, and defoamers need to be added. It is widely used to remove harmful foam in the production process of latex, textile sizing, food fermentation, biomedicine, paint, petrochemical, papermaking, industrial cleaning, sewage treatment and other industries. However, most of the defoaming agents produced in the existing market have the problems of slow defoaming speed and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04
CPCB01D19/0409B01D19/0404
Inventor 不公告发明人
Owner 合肥裕亿农业技术开发有限公司
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