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  • Chem Sci Trans., 2014, 3(4),  pp 1280-1287  

    DOI:10.7598/cst2014.866

    Research Article

    Rosinified Phenolic Polyurethane as Surface Coatings

  • M. PATEL BHAUMIK and S. PATEL HASMUKH*
  • Department of Chemistry, Vallabh Vidhayanagar, Sardar Patel University, Vallabh Vidhayanagar - 388 120, Gujarat, India
  • Abstract

    New novel surface coating formulations were prepared by blending of rosinified phenolic resin with castor oil of different % weight ratio was carried out. Thus obtained polyols were treated stoichiometrically with isophorone diisocyanate (IPDI) and toluene diisocyanate (TDI) to affoard polyurethane syrups. FT-IR analyses were monitoring for these polyurethane. These produced polyurethane syrups (i.e. resins) resins were casted into film. The result of polyurethane film were characterized for surface drying time, tack-free time, mechanical properties like scratch, impact, pencil hardness, adhesion and flexibility. The chemical properties like acid, alkalies and solvent resistance of these coats have also been checked.

    Keywords

    Castor oil, Rosinified phenolic resin, Polyurethane, Polyol, Isophorone diisocyanate, Toluene diisocyanate, Coating, Blend

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