Synthesis of cottonseed oil water-based alkyd resin and its coating performance
Abstract
Purpose
The objective was to investigate the utility of cottonseed oil (CSO) as a raw material for the synthesis of CSO water-based alkyd resin. The synthesis involved the polymerization of CSO, trimethylolpropane, phthalic anhydride (PA) and trimellitic anhydride (TMA). The prepared resin coating material was subsequently applied to the surface of steel structure material.
Design/methodology/approach
This study aimed to synthesize water-based alkyd resins using CSO. Therefore, the alkyd resin was introduced with TMA containing carboxyl groups and neutralized with triethylamine (TEA) to form a water-soluble salt. Then, the esterification kinetics of CSO water-based alkyd resin were investigated, and finally, the basic properties of CSO water-based alkyd resin coating were evaluated.
Findings
It was demonstrated that CSO water-based alkyd resin exhibited excellent water solubility and that the esterification kinetic of the synthesis reaction could be described by a second-order reaction. The coating properties of the material were investigated and found to have good basic properties, with 40% resin addition having the best corrosion resistance. Consequently, it could be effectively applied to the surface of steel structural materials.
Originality/value
This study not only met the requirement of environmentally friendly development but also expanded the application of CSO through the synthesis of CSO water-based alkyd resin via alcoholysis. Compared to fatty acid process, the alcoholysis reduced the need for fatty acid pre-extraction, simplifying the alkyd resin synthesis process. Thus, economic costs are effectively reduced.
Keywords
Acknowledgements
First of all, I would like to give my heartfelt thanks to all the people who have ever helped me in this paper.
This work was supported by Xinjiang University-Enterprise Cooperation Project (202003140001), I would like to express my hearty thanks to Quansheng Ou, AbulaJiang Yusufu and Gangshan Ma for their support and help my experiments. My sincere thanks and appreciations go to my supervisor, Prof. Weijun Zhen, whose suggestions and encouragement have given me much insight into these polymer research. It has been a great privilege and joy to study under his guidance and supervision. Furthermore, it is my honor to benefit from his personality and diligence, which I will treasure my whole life. My gratitude to him knows no bounds. I am also extremely grateful to all my friends and classmates who have kindly provided me assistance and companionship in the course of preparing this paper.
In addition, many thanks go to my family for their unfailing love and unwavering support.
Finally, I am really grateful to all those who devote much time to reading this thesis and give me much advice, which will benefit me in my later study.
Citation
Zhang, Q., Zhen, W., Ou, Q., Abulajiang, Y. and Ma, G. (2024), "Synthesis of cottonseed oil water-based alkyd resin and its coating performance", Pigment & Resin Technology, Vol. ahead-of-print No. ahead-of-print. https://doi.org/10.1108/PRT-04-2024-0042
Publisher
:Emerald Publishing Limited
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