The invention discloses a
copper wire drawing liquid and a preparation method thereof, and relates to the technical field of
metal drawing liquids.
Fatty alcohol-
polyoxyethylene ether and
triglyceride polyoxyethylene ether are compounded according to a ratio of 1: 1, and a nano-scale
microemulsion is formed through instantaneous negative interfacial tension, so that the problems of layering and
turbidity of a traditional product are thoroughly solved. And moreover, the
coating has the characteristics of
hard water resistance, acid and alkali resistance and low foam, and is biodegradable. The molecular weight of the natural
sodium sulfonate surfactant is optimized to balance emulsibility and anti-
rust property, three
layers of
chemical adsorption films are formed on the
metal surface, and efficient
rust prevention of the
copper wire is achieved; a high-
viscosity block polyether surfactant is adopted, a
block structure is endowed with super-strong
seepage force, a continuous lubricating film is separated out on a hot surface due to the inverse
solubility characteristic, and friction is remarkably reduced; the
tall oil and the
mineral oil are mixed to provide a low
viscosity index characteristic to adapt to high-speed drawing;
triethanolamine is matched with a
benzotriazole antirust agent to synergistically enhance surface adsorption of the
copper wire, and an alkaline environment inhibits microorganisms and passivates and prevents
rust; the
isothiazolinone bactericide is added at low temperature, so that the
coating is alkali-resistant,
chlorine-free, environment-friendly and long-acting in