Abstract
Waterborne alkyd resins based on Zanthoxylum bungeanum seed oil modified with epoxy resin were prepared by polyesterification reaction. The different base catalysts were examined on the alcoholysis reaction. Further, epoxy-modified waterborne alkyd resins were blended with hexamethoxy methyl melamine to improve the properties like curing time, chemical resistance and thermal stability. The properties of the prepared resins (acid value, drying time, pencil hardness, adhesion, flexibility, chemical resistance and thermal stability) were studied. The prepared polymers were characterized by FT-IR spectroscopy, particle size analysis and thermogravimetric analysis. ZSO-based alkyd resins modified epoxy resin and their blends with HMMM (EWA:HMMM = 3:1) showed enhanced chemical resistance, physical properties and thermal stability.
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