DefinePK

Abstract

Catfish fat treated to refined Catfish oil (RCfO) by degum, dewax and neutralize. Catfish fat was chemical conversion to ester Catfish oil (ECfO) for the purpose of enhancing the oxidation stability of Catfish fat. Blending bio-lubricant from ECfO and RCfO was constructed base on the 20W-50 engine lubricants formula, replacing mineral base oil asmixture of ECfO and RCfO. The characteristics of material and products were determined by TCVN standard and ASTM standard. Thermo gravimetric analysis (TGA) measurements and Rancimat test were used in determination the oxidation resistance. The biodegradability of samples was analyzed by COD test and BOD test. From the analysis results show that, ECfO and RCfO can used as biobase oil. Blend of ECfO and RCfO in ratio (wt/wt) 75/25was not only able to meet the characteristics of 20W-50 engine lubricant but also high biodegradability. The preparation of bio-lubricant from Catfish fat can develop sustainably because of using alternative materials and environmentally friendly products.