Emulsified oil layering? Do these things easily
July 23, 2022
Stratification Reasons 1. The balance of emulsified oil is not adjusted well, and the balance of oil and water is too large. The general reason for the stratification of emulsified oil is that the water and oil are not balanced. Here, water refers to H2O and hydrophilic substances. In the process of preparing emulsified oil, alkali is used to neutralize the carboxylic acid, and the reaction product is generally a hydrophilic salt. If the balance of the emulsified oil system is not adjusted well, that is, the HLB value (the lipophilic and hydrophilic balance value of the surfactant) is too large, or if it is not emulsified and dispersed into the oil phase system, it will stratify after static. 2. The anti-oxidation performance is poor and the storage time is too long. The Base Oil has poor anti-oxidation performance and poor storage. The best storage temperature of the emulsion is 4-30 degrees. The temperature has a great adverse effect on the cutting fluid. Long-term exposure to the sun can cause the oil components in the cutting fluid to separate. come out.
Solution 1. Choose a suitable emulsifier. The rational use of emulsifiers is more critical, not only to grasp the acidity and alkalinity, but also to grasp the basic HLB. 2. Select the appropriate base oil. In fact, the most direct method to determine whether a base oil can be used to make metalworking fluids is to determine the lipophilic-hydrophilic balance value of the base oil. If its HLB value is above 9, the emulsion has good stability, and if the HLB value is less than 9, it is not suitable. Even if the emulsion is adjusted for stability, it is not particularly ideal. 3. Reasonable storage. No matter how good the performance of the cutting fluid, if you do not pay attention to daily maintenance and management, it cannot maintain its performance for a long time.
