Metal cutting fluid based on maleated rosin ethanolamine and preparation method of metal cutting fluid

The invention relates to the technical field of metal cutting fluids, and discloses a metal cutting fluid based on maleated rosin ethanolamine and a preparation method of the metal cutting fluid. Themetal cutting fluid comprises the following components by mass: 30-50 parts of base oil, 8-12 parts of an emulsifier, 1-5 parts of a nonionic surfactant, 4-12 parts of a pH regulator, 2-8 parts of anoiliness agent, 2-6 parts of extreme pressure agent, 5-10 parts of antirust agent, 1-3 parts of corrosion inhibitor, 0-3 parts of bactericide and the balance water. The problems that an existing metalcutting fluid is not environmentally friendly, prone to stink, low in production efficiency and large in environmental pollution are solved. Meanwhile, the invention provides the preparation method of the metal cutting fluid, so that the metal cutting fluid can be conveniently prepared in batches at low cost through an industrial method. 本发明涉及金属切削液技术领域，公开了一种基于马来松香乙醇胺的金属切削液及其制备方法，包括按质量百分比计的如下各组分：基础油30-50质量份，乳化剂8-12质量份，非离子表面