Investigation of tribological properties of polymer grease manufactured from poly alpha olefin with boron nitride


Bayar A., Ay G. M.

BALTTRIB, Vilniaus, Litvanya, 22 - 24 Eylül 2022, ss.1-5

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.15544/balttrib.2022.1
  • Basıldığı Şehir: Vilniaus
  • Basıldığı Ülke: Litvanya
  • Sayfa Sayıları: ss.1-5
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Greases are a type of lubricant that has higher viscosity. Manufacturing greases are conducted by mixing

base oils with calcium, sodium, or lithium mineral salts. Manufacturing process is complex and changes in

parameters results significant change in Grease properties. The increase in mineral salts costs and their effect on

nature caused researchers to look for alternative materials that can replace mineral salts. A novel method for

manufacturing grease is to use polymers as thickener agents. In this study, 12% polypropylene was used to produce

grease from poly alpha olefin. In order to increase grease’s high-pressure properties, 2% hexagonal boron nitride

was added. Manufactured grease was compared to lithium grease with hexagonal boron nitride addition. Both

samples were tested on ball-on-disc tribometer on mirror polished 4140 and results were discussed.