Journal
INDUSTRIAL CROPS AND PRODUCTS
Volume 61, Issue -, Pages 106-114Publisher
ELSEVIER
DOI: 10.1016/j.indcrop.2014.06.048
Keywords
Karanja seed oil; Millettia pinnate; Renewability; Alcoholysis-polyesterification; Alkyd resin
Categories
Funding
- University Grant Commission, India [F.7-64/2007-BSR]
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Non-edible vegetable oils are an important class of bio-resource for producing polymeric materials due to their large abundance, low cost and renewability. Karanja (Millettia pinnata) tree is an evergreen, drought resistant, nitrogen fixing tree belonging to Leguminaceae family. Karanja seed oil (similar to 27 wt%) mainly consisting of triglycerides is a good source of non-edible vegetable oil for synthesizing alkyd resin. Triglyceride was first converted to monoglyceride by glycerolysis process. The monoglyceride was then reacted with phthalic and/or maleic anhydride to produce alkyd resins. The synthesized resins were characterized by FT-IR and H-1 NMR spectroscopy. The surface characteristic of the cured resins was studied by SE microscopy. The physico-chemical properties of the resins such as colour, acid value, free fatty acid content and iodine value were evaluated. The coating performance of the cured resins was tested by measuring chemical resistance, thermal stability, pencil hardness, gloss and adhesion. (C) 2014 Elsevier B.V. All rights reserved.
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