Department of Chemical Engineering, University of Ilorin, PMB 1515, Ilorin, Nigeria; Department of Chemistry, University of Ilorin, PMB 1515, Ilorin, Nigeria
Odetoye, T.E., Department of Chemical Engineering, University of Ilorin, PMB 1515, Ilorin, Nigeria; Ogunniyi, D.S., Department of Chemical Engineering, University of Ilorin, PMB 1515, Ilorin, Nigeria; Olatunji, G.A., Department of Chemistry, University of Ilorin, PMB 1515, Ilorin, Nigeria
Jatropha curcas Linnaeus (JCL) seed oil was utilized in the preparation of four sets of alkyd resin (35%, 50%, 60% and 75% oil formulations) using a two-stage alcoholysis-polyesterification method. The rates of polyesterification depended on the amount of oil used during synthesis. The properties of the alkyds were evaluated. The range of solidification times was between 278 and 442s; also the range of film thickness was between 0.014 and 0.08mm, and the alkyds were readily soluble in turpentine, xylene and butanol. Inclusion of cobalt naphthenate as drier and outdoor temperature (37°C±2) improved the drying properties of all the alkyds. The colours of white gloss paints formulated from the alkyds, considering a pigment-volume concentration of 20.67% in the gloss paint formulation, compared well with that of a paint formulated using a commercial alkyd sample. 1H NMR analysis confirms the expected structure of the alkyds. © 2010 Elsevier B.V.
Alcoholysis; Alkyds; Jatropha curcas; Jatropha oil; NMR analysis; Oil formulations; Outdoor temperature; Paint formulation; Polyesterification; Seed oil; Two stage; Volume concentration; Alkyd resins; Aromatic hydrocarbons; Cobalt; Oils and fats; Paint; Xylene; Resins; alcohol; dicotyledon; nuclear magnetic resonance; pigment; resin; solidification; vegetable oil; volume; xylene; Jatropha; Jatropha curcas
