White oil is a colorless translucent oily liquid with no or almost no fluorescence. It is odorless and tasteless when cold, and has a slight petroleum-like smell when heated. It is insoluble in water and ethanol, soluble in volatile oils, and miscible in most non-volatile oils. It is stable to light, heat, acid, etc. White oil can be divided according to its use. It is cosmetic grade white oil, industrial grade white oil, pharmaceutical grade white oil and food grade white oil.
According to the understanding of white oil supply: Industrial grade white oil is made from base oil produced by hydrocracking as raw material, and is obtained after deep dewaxing, chemical refining and other processes. It is suitable for the processing of chemical fiber aluminum materials and other products, and can also be used as a compound oil for rubber plasticization. Generally, industrial-grade white oil has a wide range of uses. It is also widely used in some chemical fiber and synthetic fiber industries. It can be used as a lubricant, solvent and coolant in textiles, making fibers and fabrics softer and brighter. It can also be used as a wetting agent, solvent and lubricant in synthetic resin and plastic processing industries. In addition, it can also be used as a lubricant for some textile machinery, precision instruments, etc.
The role of industrial white oil as a lubricant in PVC:
Adding industrial white oil to PVC as an external lubricant makes the plastic easier to process. The surface of equipment, such as barrel, screw, mold cavity, etc. is separated to avoid manual coating of release agent during the injection molding process. It can not only meet the requirements of process processing and production efficiency, but also the product has good appearance brightness and resistance. Extractability. The amount of white oil precipitated is very small. Even if the amount is large, the amount of precipitation will not affect the surface brightness of the product.
First of all, white oil is liquid during processing and can migrate to the metal surface of the mold to the maximum extent under the action of shear force and temperature; secondly, it can also be proved through other usage conditions that at normal temperature, KW15 can infiltrate the inside of materials and products, and is better absorbed by the materials.
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