| abstract |
Today, there is a growing demand for products that offer higher energy efficiency and performance, and are environmentally sustainable, requiring less energy consumption and fewer inputs. These requirements have fostered research in various areas of nanoscience and nanotechnology (n & n), which aim to overcome these limitations or add the main advantages of nano oils. The present patent proposes to add with indium (in) nanoparticles of average diameters ranging from 20 nm to 2500 nm, oils used in refrigeration class 300, clavus-33, cp-46 rf and synthetic oils: polyalphaolefins ( polyalkylene glycols (pags), alkylbenzenes and polyesters (poles). In order to better meet the challenges outlined here, without changing the viscosity of fresh oil, the additive is achieved by including a volumetric fraction between 0.01% and 0.1% indium (in) particles, whose Mass concentration may range from 0.1 g / l to 1 g / l. |