Preparation of hyperbranched polyester polyol-based urethane acrylates and applications on UV-curable wood coatings


Sabani S., Onen A. H. , Gungor A.

JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, cilt.9, ss.703-716, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 9 Konu: 6
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1007/s11998-012-9418-6
  • Dergi Adı: JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
  • Sayfa Sayıları: ss.703-716

Özet

In the present study, hyperbranched urethane acrylates (UA/HB-PEs) were synthesized by modifying the hydroxyl groups of hyperbranched polyester polyols (HB-PEs). The structure of oligomers were characterized by FTIR and H-1 NMR spectroscopic techniques. Formulations containing UA/HB-PEs, reactive diluents, and photoinitiator were applied onto wood substrates and successfully polymerized under UV-irradiation. The coating performances and thermal properties of UV-cured films were evaluated. The studies on film characteristics reveal that the incorporation of UA/HB-PE afforded coatings with good adhesion and high gloss properties. It is observed that UV-cured coatings originated from [2,2-bis(4-beta-hydroxyethoxy) phenyl propane] (HB-HEPA)- and [2,2-bis(4-beta-hydroxyethoxy) phenyl 6F propane] (HB-HEPFA)-based oligomers possessed better surface and mechanical properties.