Abstract
Lagenariabreviflorus seed oil was used in the formulation of two grades of alkyd resins using a two-stage alcoholysis-polyesterification method. The oil was extracted with n-hexane and oil content of 29.50% was obtained. The physicochemical analysis of the seed oil revealed that L.breviflorus is semi-drying (iodine value, 110mg I2/100 g) containing74.40% unsaturated fatty acids with linoleic acid (61.12%), stearic acid (14.98%), oleic acid (13.01%) and palmitic acid (10.34%) being the most abundant. Properties of the alkyds having oil content of 40% (I) and 50% (II) were evaluated. The acid value of prepared alkyds was observed to decrease as the reaction progressed. The infra-red spectra peaks of the alkyds compared well with that of the commercial sample indicating that L. breviflorus seed oil has been successfully converted to alkyd resin. Evaluation of prepared alkyds by determination of acid values, iodine values, solubility in xylene, toluene and acetone resistance of dry film to acid, alkali and water; scratch and gouge film hardness and drying time revealed that L. breviflorus seed oil is a potential raw material for the coatings industry.
| Original language | English |
|---|---|
| Pages (from-to) | 1846-1855 |
| Number of pages | 10 |
| Journal | Journal of Materials and Environmental Science |
| Volume | 7 |
| Issue number | 6 |
| State | Published - 2016 |
| Externally published | Yes |
Keywords
- Alkyd resin
- Lagenaria breviflorus
- Linoleic acid
- Oleic acid
- Seed oil
ASJC Scopus subject areas
- Environmental Chemistry
- Waste Management and Disposal
- Pollution
- Materials Chemistry