INVESTIGATION OF TRIBOLOGICAL PROPERTIES OF POLYMER GREASE MANUFACTURED FROM PALM ESTER WITH BORON NITRIDE AND POLY ALPHA OLEFIN WITH BORON NITRIDE
Keywords:
Friction, greases, PAO, Palm esterAbstract
Greases are lubricants that are used to reduce friction, heating, distortion, torsion in gears and machines. General method of manufacturing grease is using mineral salts. As mineral salts become more expensive, research for alternative materials that can replace grease increased. A novel method for manufacturing grease is to use polymers as thickener agents. In this study, 12% polypropylene was used to produce grease from palm ester and poly alpha olefin, which are different greases from each other. In order to increase greases’ high-pressure properties, 2% hexagonal boron nitride was added. Manufactured palm ester greases were compared to poly alpha olefin greases which have been produced. Both samples were tested on ball-on-disc tribometer on mirror polished 4140 and results were discussed