TITLE:
Investigating the Effect of Catalyst Type and Concentration on the functional Group Conversion in Castor Seed Oil Alkyd Resin Production
AUTHORS:
Chigozie F. Uzoh, Joseph T. Nwabanne
KEYWORDS:
Alcoholysis, Alkyd Resin, Dehydrated Castor Seed Oil, Catalyst Type, GC-MS
JOURNAL NAME:
Advances in Chemical Engineering and Science,
Vol.6 No.2,
April
25,
2016
ABSTRACT: Significant scientific and
economic benefits may be derived from investigating the best choice of catalyst
in the alkyd resin synthesis. The effect of catalyst type and concentration on
the production of alkyd resin using castor seed oil (CSO) was evaluated.
Lithium hydroxide, lead (II) oxide, calcium carbonate, sodium hydroxide and
calcium oxide were investigated.The
fatty acid profile of the raw CSO was determined using GC-MS while structural
elucidation of the CSO based alkyd resins was determined using FTIR
spectrometry.The CSO modified
alkyd resin produced has acid values of 5.0, 5.61, 7.0 8.24 and 11 for lithium
hydroxide, lead (II) oxide, calcium carbonate, sodium hydroxide and calcium
oxide respectively. The extent of reaction was 95%, 95%, 91%, 89% and 88% for
lithium hydroxide, lead (II) oxide, calcium carbonate, sodium hydroxide and
calcium oxide respectively at the reaction time of 150 minutes. The alcoholysis
reaction completion time was fastest in LiOH followed by PbO, CaCO3,
NaOH and CaO catalyst.Physico-chemical
parameters of the oil and performance evaluation of the alkyd films suggest
that they are sustainable materials for surface coating. LiOH shows excellent
robustness to expanded process parameters.