UV-Curable Coating of Epoxy-Acrylate/Polyurethane-Acrylate Nanocomposites Modified with V-POSS

Abstract:

UV-curable bi-component coating of epoxy-acrylate/polyurethane-acrylate modified with polyhedral oligomeric silsesquioxane containing vinyl group (V-POSS), and UV-cured process and kinetics were investigated by FTIR, DSC, and DMA. The results show that this coating has a good UV-curable property, and the two components have very good compatibility and can co-cure in free radical polymerization. The curing reaction can be described by a two-parameter autocatalytic Šesták-Berggren (S-B) model. The modified UV-curable coating has good adhesive strength for steel and hardness. The mechanical loss peak temperature Tp is highest when the content of V-POSS is 60%, which is increased by 5.2 oC than the pure system.

• Periodical: Advanced Materials Research (Volumes 217-218)
• Pages: 559-563
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.217-218.559
• Online since: March 2011
• Authors: Jun Gang Gao, Ying Ying Ma, Hao Jie Lin
• Keywords: Epoxy-Acrylate, Polyurethane-Acrylate, Silsesquioxane (SSO), UV-Curable Coating

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