High-temperature-resistant organic silicon emulsion type defoaming agent and preparation method thereof

The invention discloses a high-temperature-resistant organic silicon emulsion type defoaming agent and a preparation method thereof, and relates to the technical field of defoaming agents. The high-temperature-resistant organic silicon emulsion type defoaming agent is prepared from the following components in parts by weight: 10 to 30 parts of silicone oil, 1 to 5 parts of hydrophobic particles, 10 to 20 parts of polyether, 50 to 300 parts of water, 2 to 10 parts of an emulsifier, 0.1 to 2 parts of a stabilizer and 0.1 to 2 parts of a preservative. The high-temperature-resistant organic silicon emulsion type defoaming agent has good defoaming and foam inhibition performance and stability, is self-emulsified and self-dispersed, stable in emulsifying property, not easy to demulsify and float oil, rapid in defoaming, lasting in foam inhibition, high-temperature-resistant, acid-alkali-resistant, safe and non-toxic, and meets the environment-friendly requirement; the quality is stable, the viscosity and the concen