Dynamic Mechanical and Thermal Behavior of UV-Curable Coating of Glycidyl Methacrylate /Polyurethane-Acrylate Modified with MAP-POSS

Abstract:

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UV-curable bi-component coating of glycidyl methacrylate (GMA)/polyurethane –acrylate (PUA) modified with the methylacryloylpropyl polyhedral oligomeric silsesquioxanes (MAP-POSS) were prepared. The dynamic mechanical properties and thermal behavior of nano-hybrid coating (GMA/PUA/MAP-POSS) were characterized with dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA) and the Fourier transform infrared spectrometer (FTIR). The results indicate the three components have very good compatibility and can co-cure in UV-radialization by a free radical polymerization. The addition of MAP-POSS enhanced the thermal properties, the mechanical loss peak temperature Tp is 85.5°C when the amount of MAP-POSS is 10wt%, which is increased by 12.6 °C than the pure system. When the content of MAP-POSS is 20wt%, thermal decomposition temperature in the initial stages was increased by 7 °C than that of the pure GMA/ PUA.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

2077-2080

DOI:

10.4028/www.scientific.net/AMR.233-235.2077

Citation:

J. G. Gao et al., "Dynamic Mechanical and Thermal Behavior of UV-Curable Coating of Glycidyl Methacrylate /Polyurethane-Acrylate Modified with MAP-POSS", Advanced Materials Research, Vols. 233-235, pp. 2077-2080, 2011

Online since:

May 2011

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$35.00

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