Open Access

ARTICLE

Preparation and Characterization of Alkyd Resins Based on Citrullus colocynthis Seed Oil

Hassen Mohamed Sbihi^1,*, Hamid Shaikh², Lahssen El Blidi², Imed Arbi Nehdi¹, Ubair Abdus Samad², Moufida Romdhani-Younes³, Saud Ibrahim Al-Resayes¹
1 King Saud University, College of Science, Chemistry Department, P.O. Box 2454, Riyadh 1145, Saudi Arabia
2 King Saud University, Chemical Engineering Department, P.O. Box 800, Riyadh 11421, Saudi Arabia
3 Laboratory of Structural Organic Chemistry, Department of Chemistry, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
*Corresponding author:

Journal of Renewable Materials 2018, 6(6), 651-661. https://doi.org/10.7569/JRM.2018.634105

Abstract

In this study, different samples of alkyd resins based on Citrullus colocynthis seed oil (CCSO)—which has a high content of linoleic acid—were prepared as a renewable raw material. Short (I), medium (II), and long (III) alkyd resins were synthesized using oil, glycerol, and phthalic anhydride (PA) in different proportions. Prunus mahaleb seed oil (PMSO), which contains conjugated linolenic acid, was blended with CCSO in different proportions to examine the effect of PMSO on the film properties of alkyd resins (IV and V). All synthesized resins were characterized by FTIR and 1H NMR spectroscopic analysis. These resins were also cured by an epoxy resin and their film properties (pencil hardness, adhesion, gloss, and chemical resistance) were determined. Analysis of these alkyds reveals that CCSO can be used as a new potential raw material for coating applications.

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Keywords

Citrullus colocynthis seed oil, Prunus mahalab seed oil, alkyd resin, alcoholysis-polyesterification, renewability

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