Ren Q, Pan J, Zhou J, Na Y, Chen C, Li W. Synthesis and Tribological Studies of Branched Alcohol Derived Epoxidized Biodiesel.
MATERIALS (BASEL, SWITZERLAND) 2015;
8:6623-6632. [PMID:
28793587 PMCID:
PMC5455368 DOI:
10.3390/ma8105326]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 08/25/2015] [Accepted: 09/21/2015] [Indexed: 06/07/2023]
Abstract
The optimization and kinetics of the ring-opening reaction of an epoxidized biodiesel (epoxidized rapeseed oil methyl ester) (EBD) with 2-ethyl hexanol (2-EH) were studied. The determined optimum conditions were 4:1 2-EH/oil molar ratio, 90 °C, 18 h, and 7 wt % of Amberlyst D001 (dry) catalyst; the product's oxirane oxygen content was 0.081% with 38.32 mm²/s viscosity at 40 °C. The catalyst retained its high catalytic power after recycling five times. Furthermore, the determined non-catalyzed activation energy was 76 kJ·mol-1 and 54 kJ·mol-1 with the D001 resin catalyst. The product's chemical structure was investigated through FT-IR and ¹H NMR. The viscosity, flash point, pour point, and anti-wear properties of the product were improved compared with those of epoxidized biodiesel.
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