Insight into the role of amines in Metal Working Fluids

Autor: P. Pasqualin, Silvia Ardizzone, Valentina Pifferi, Andrea Lotierzo, Giuseppe Cappelletti
Rok vydání: 2016
Předmět:
Zdroj: Corrosion Science. 110:192-199
ISSN: 0010-938X
Popis: The influence of primary/tertiary amines in Oil-in-Water emulsions (as Metal Working Fluids (MWFs) towards brass) is evaluated in both pure water and 5% O/W emulsion. Physical properties, wetting, lubricating and corrosion behaviors are finely investigated. Experimental results show that the number of carbon atoms in amines plays a pivotal role in reducing the brass corrosion. Among the adopted amines, the cyclohexyldiethanolamine (CHDEA) seems to be the optimal one in both media: (i) it adsorbs easily onto the brass limiting corrosion and stain; (ii) it leads to stable emulsions; (iii) it does not affect the emulsion lubricant and wetting performances.
Databáze: OpenAIRE