Improving the Intrinsic Viscosity for Base Lubricating Oils mixed with OCP by using Some Polymeric Additives

The relative viscosity, specific viscosity and reduced viscosity were enumerated to evaluate the intrinsic viscosity for three types of base lubricating oils 40, 60 and 150 stock that were mixed with olefin copolymer of type Polyvinyl chloride-100XA at four temperature degrees of 40, 60, 80 and 100 oC and using of three different kinds of polymeric additives formulations named as Lubrizol 21001, HiTEC 8722B and HiTEC 340. Mixtures of base lubricating oils with proportions of 2, 4, 6, 8 and 10 wt% from the Polyvinyl chloride-100XA were blended with 4 and 8 wt% of the three additives. The results were remarkable and showed that the intrinsic viscosity for the base lubricating oils increase by increasing both temperature degrees and the proportions of Polyvinyl chloride-100XA and the additives.