High-alcohol defoaming agent and preparation method thereof

Abstract

The invention discloses a defoamer for high-carbon alcohols and a preparation method thereof. The raw materials of the defoamer include 2 to 5 parts of palmitic acid, 0.2 to 0.6 parts of propylene glycol, 4 to 10 parts of n-octanol, 6 to 20 parts of pentaerythritol ester stearate, and 5 to 12 parts of hexacane Alcohol, 12-30 parts of microcrystalline wax, 2.5-7.5 parts of emulsifier, 1-4 parts of aluminum tripalmitate, and water. The defoamer of the present invention is in the form of an emulsion containing multiple high-carbon alcohols and has defoaming effect. In addition, aluminum tripalmitate, as a hydrophobic particle, can cooperate with the oil phase components to further enhance the defoaming effect. In addition, it significantly reduces costs compared to silicone defoamers and polyether defoamers.

Description

technical field

[0001] The technical field of the defoamer of the present invention particularly relates to a defoamer of high carbon alcohols and a preparation method thereof. Background technique

[0002] Foam needs to be used in flotation, fire extinguishing, dust removal, washing, manufacturing foam ceramics and foam plastics, etc.; while in fermentation, coating, papermaking, printing and dyeing, removing flatulence of internal organs, boiler water, wastewater treatment and prism or glass manufacturing process It is necessary to eliminate foam in the environment, visible foam and foam are accompanied by people's production and life. The so-called "bubbles" or "bubbles" are formed by insoluble gases existing in liquids or solids or surrounded by their films. It is a dispersion system with gas / liquid, gas / solid, gas / liquid / solid interfaces , Dispersed bubbles at the gas / liquid / solid interface are commonly seen in ore dressing and oilfield systems. The accumulated state ...

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