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ARS Home » Midwest Area » Peoria, Illinois » National Center for Agricultural Utilization Research » Bio-oils Research » Research » Publications at this Location » Publication #409550
Research Project: Versatile Biobased Products with Multiple Functions

Location: Bio-oils Research

Title: Phosphonate from used cooking oil as a biobased lubricant

Author
item Bantchev, Grigor

Submitted to: Society of Tribologists and Lubrication Engineers
Publication Type: Abstract Only
Publication Acceptance Date: 11/27/2023
Publication Date: 5/23/2024
Citation: Bantchev, G.B. 2024. Phosphonate from used cooking oil as a biobased lubricant [abstract]. Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition.

Interpretive Summary:

Technical Abstract: Used cooking oil was collected form a local pizza restaurant and reacted with dibutyl phosphite to generate phosphonated used cooking oil. GC-MS, NMR, and FTIR confirmed that the radical-initiated reaction ran to a high degree of completion (no residual double bonds detected). The phosphonate was tested as an additive in polyalphaolefin (PAO6) in 1 to 5 wt.%. It improved the antiwear performance in both 4-ball (ASTM D4172) and high-frequency reciprocating rig (HFRR, modified ASTM D6079) tests. In the 4-ball test, the phosphonate additive resulted in an increase of the coefficient of friction (COF), and in the HFRR test, the COF decreased 20 to 50%. The cloud point and pour points were acceptable at low levels. These results suggest that the phosphonate has good potential for use as an additive up to 3 wt.%.