Abstract
Vinylester resin of p-dihydroxybenzene (VER-HQ) was prepared by the reaction between diglycidyl ether of hydroquinone and acrylic acid. Novel unsaturated poly-urethane resin (UPU-HQ) from (VER-HQ) was synthesized by reacting VER-HQ with Toluene diisocyanate. The polyurethane resin (UPU-HQ) was coated on mild steel panels. The coated panels were tested for their impact strength, flexibility scratch hardness and chemical resistancy. The addition of vinyl monomer viz., styrene in the resin systems impacts the properties of coatings remarkably.
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