Nonionic emulsifier is environmentally friendly
Degussa has introduced TAGAT® V20, an environmentally friendly, vegetable-based, nonionic emulsifier for metalworking that requires no hazard warning labels and does not irritate the skin.
Developed by the company's subsidiary Goldschmidt Chemical Corp., the emulsifier's properties help ensure spontaneous formation of finely dispersed, stable oil-in-water emulsions, which reduces the total emulsifier content necessary for fluid emulsification.
The low-foaming product is derived from renewable castor oil, a naturally occurring glyceride. It is used primarily in formulating environmentally friendly metalworking fluids (MWFs) based on vegetable oils and ester oils, as well as these oils combined with mineral oil.
When used as the sole emulsifier in a MWF, a 10 to 15 percent usage level of the emulsifier is sufficient to ensure a stable emulsion. Hydrophobic co-emulsifiers, such as the company's TEGIN® OV co-emulsifier, can be used to adjust the hydrophilic/lypophilic balance (HLB).