Water-in-oil emulsion defoaming agent

• Main Authors: CAO TIAN, WANG CHANGGUO, HUANG WEI, DONG FEI
• Format: Patent
• Language: Chinese; English
• Published: 02.07.2024
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

According to the water-in-oil emulsion defoaming agent provided by the invention, two different types of defoaming assistants are introduced, the defoaming and foam inhibition performance of the defoaming agent is improved, and a lipophilic surfactant mannitol fatty alcohol acid ester has a plurality of hydrogen bond acceptor and donor groups and can be tightly combined with a hydrophilic surfactant polyoxyethylene fatty acid ester substance, so that the defoaming effect is improved. Groups of a plurality of hydrogen bond donors and acceptors can better wrap emulsified active matters in the emulsifying process, so that the emulsifying efficiency is improved; in the preparation process, the carrier oil and the emulsifier are slowly and dropwise added into the system respectively by using high-shear equipment, so that the stability and compatibility of the emulsion are further improved. 本发明提供了一种油包水乳液消泡剂，引入两种不同类型的消泡助剂，提高消泡剂的消抑泡性能，亲油性表面活性剂甘露醇脂肪醇酸酯具有多个氢键受体和供体基团，可以与亲水性表面活性剂聚氧乙烯脂肪酸酯类物质紧密结合，形成稳定的乳化剂，乳化过程中多个氢键供体和受体的基团