High-alcohol emulsion defoamer for liquid crystal field, and preparation method thereof

The invention discloses a high-alcohol emulsion defoamer for the liquid crystal field, and a preparation method thereof. The preparation method comprises the following steps: stirring and uniformly mixing, by mass, 15-30% of high alcohol, 2-5% of mineral oil, 3-12% of fatty alcohol polyether polyol, 3-12% of polyether modified silicone oil and 5-15% of a special emulsifier, performing heating andstirring, adding 40-60% of water at the same temperature to achieve emulsification, and cooling and discharging the obtained mixture to obtain the high-alcohol emulsion defoamer. The defoamer can be widely applied to the fields of liquid crystal materials and composite materials. The defoamer has the advantages of good defoaming effect, superior foam inhibition performance, good emulsion stability, no creaming phenomenon at a low temperature, no side effects on objects to be defoamed, great potential research and development values, and good market competitiveness. 本发明公开了种用于液晶领域的高碳醇乳液消泡剂及制备方法，将质量比为15-30％的高碳醇、2-5％的矿物油、