Mineral oil defoaming agent and preparation method thereof

• Main Authors: GUO YUANQIANG, CHEN HAO, YANG QIAO, QIU YUETAO, PAN ZHIFENG, FANG YUNHUI, YAO XIAOYANG, YAO LIANGKE, KE YULIANG, CHEN YONGZHONG
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2024
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention relates to the technical field of chemical materials, in particular to a mineral oil defoaming agent and a preparation method of the mineral oil defoaming agent. Comprising the following raw materials: 11%-21% of silicon paste, 3%-6% of fatty acid metallic soap, 3%-8% of an emulsifying component, 0.1%-4% of a digestion assisting component and the balance of mineral oil. The silicon paste is formed by compounding modified polysiloxane, silicone oil and hydrophobic white carbon black according to a mass ratio of (7.5-12): (3-5): (0.5-4). According to the mineral oil defoaming agent provided by the invention, silicon paste can be formed by compounding modified polysiloxane and silicone oil, the surface tension is effectively reduced and the compounding compatibility of the mineral oil defoaming agent and a polycarboxylic acid water reducing agent is improved by grafting polyether chain segments while fluorine is introduced into the mineral oil defoaming agent, and the mineral oil defoaming agent is