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Environment-friendly defoaming agent

A defoamer, environmentally friendly technology, applied in the field of fine chemical products, can solve the problems of high aquatic organisms, increased cumulative toxicity, skin allergies, etc., and achieve the effects of strong surface adsorption, large surface energy, and strong environmental protection.

Active Publication Date: 2014-04-02
惠州市华士德化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, nonylphenol polyoxyethylene ether has been considered as an important substance that is restricted in use. Nonylphenol polyoxyethylene ether is more irritating to the eyes than other substances, and long-term contact with the skin will cause skin allergies. The toxicity of the organism is moderately high, however, in the decomposition products, the toxicity and bioaccumulation toxicity will be increased accordingly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 The environment-friendly defoamer in this example is prepared using the following raw materials in parts by weight: 50 parts of higher fatty alcohol (monovalent higher fatty alcohol with 12 carbon atoms obtained by esterification of natural vegetable oil), polyether modified 4 parts of siloxane, 5 parts of Tween series emulsifier: Tween-60, 5 parts of Span series emulsifier: 5 parts of Span-80, 8 parts of nano-silica, 300 parts of deionized water; the following steps are used to prepare: In the reaction kettle, mix and stir the higher fatty alcohol and polyether modified siloxane evenly, then add Tween series emulsifier, Span series emulsifier, and nano-silica pre-dispersed in deionized water, and stir at low speed to make Mix all ingredients evenly.

Embodiment 2

[0018] Example 2 The environment-friendly defoamer of this example is prepared using the following raw materials in parts by weight: 20 parts of higher fatty alcohol (monovalent higher fatty alcohol with 15 carbon atoms obtained by esterification of natural vegetable oil), 20 parts of polyether modified 2 parts of siloxane, 3 parts of Tween series emulsifier: Tween-40, 1 part of Span series emulsifier: 1 part of Span-80, 5 parts of nano-silica, 100 parts of deionized water.

Embodiment 3

[0019] Example 3 The environment-friendly defoamer of this example is prepared using the following raw materials in parts by weight: 70 parts of higher fatty alcohol (monovalent higher fatty alcohol with 14 carbon atoms obtained by esterification of natural vegetable oil), polyether modified 6 parts of siloxane, 8 parts of Tween series emulsifier: Tween-20, 3 parts of Span series emulsifier: 3 parts of Span-20, 10 parts of nano-silica, 400 parts of deionized water.

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PUM

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Abstract

The invention discloses an environment-friendly defoaming agent which consists of the following components by weight: 20-80 parts of higher aliphatic alcohol, 1-10 parts of polyether modified silicone, 3-15 parts of a tween series emulsifier, 1-10 parts of a span series emulsifier, 5-20 parts of silicon dioxide and 100-500 parts of deionized water. The environment-friendly defoaming agent is prepared from the non-toxic and harmless raw materials; according to the formula, nano silicon dioxide is used as a carrier and an emulsification auxiliary ingredient, so that higher stability and higher reinforcement property can be achieved; under the dual action of the nano silicon dioxide, the stability and the foam suppression effect of the defoaming agent are higher and better.

Description

technical field [0001] The invention relates to a defoamer, in particular to an environment-friendly defoamer, which belongs to the technical field of fine chemical products. Background technique [0002] Many harmful foams produced in the process of industrial production will cause overflow of raw materials, greatly restrict the production capacity of equipment, cause waste of raw materials and products, prolong the reaction cycle, affect product quality, pollute the environment, cause accidents and other hazards, therefore, In the process of industrial production, defoamers need to be added. [0003] The defoamer is mainly composed of (1) active ingredients that have the functions of breaking foam, defoaming, and reducing surface tension; (2) dispersing the active ingredients into small particles, which are easy to disperse in water, and better defoaming and foam suppression (3) Contributes to the combination of the carrier and the foaming system, and is easy to disperse ...

Claims

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Application Information

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IPC IPC(8): B01D19/04
Inventor 张锦碧
Owner 惠州市华士德化工有限公司
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