TY - JOUR
T1 - Preparation of hyperbranched polyester polyol-based urethane acrylates and applications on UV-curable wood coatings
AU - Şabani, Sümeyye
AU - Önen, Ayşen H.
AU - Güngör, Atilla
PY - 2012/11
Y1 - 2012/11
N2 - 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 1H 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-β-hydroxyethoxy) phenyl propane] (HB-HEPA)- and [2,2-bis(4-b-hydroxyethoxy) phenyl 6F propane] (HB-HEPFA)-based oligomers possessed better surface and mechanical properties.
AB - 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 1H 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-β-hydroxyethoxy) phenyl propane] (HB-HEPA)- and [2,2-bis(4-b-hydroxyethoxy) phenyl 6F propane] (HB-HEPFA)-based oligomers possessed better surface and mechanical properties.
KW - Coating performance
KW - Hyperbranched polyester polyol
KW - Mechanical properties
KW - UV-curing
UR - http://www.scopus.com/inward/record.url?scp=84870775859&partnerID=8YFLogxK
U2 - 10.1007/s11998-012-9418-6
DO - 10.1007/s11998-012-9418-6
M3 - Article
AN - SCOPUS:84870775859
SN - 1945-9645
VL - 9
SP - 703
EP - 716
JO - Journal of Coatings Technology and Research
JF - Journal of Coatings Technology and Research
IS - 6
ER -