Cure Kinetics and Thermal Property of UV-Curable Polyester Nanocomposites Coating Modified with MAP-POSS

Jun Gang Gao; Bei Bei Sun; Xing Li

doi:10.4028/www.scientific.net/AMR.150-151.821

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 150-151Cure Kinetics and Thermal Property of UV-Curable...

Cure Kinetics and Thermal Property of UV-Curable Polyester Nanocomposites Coating Modified with MAP-POSS

Abstract:

The UV-curable unsaturated polyester (UPR) was modified with glycidyl methacrylate and methylacryloylpropyl polyhedral oligomeric silsesquioxanes (MAP-POSS), and the cure kinetics of MAP-POSS/UPR system was investigated by non-isothermal DSC. The result shows that UPR, glycidyl methacrylate and MAP-POSS 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 average reaction activation energy Ea for 6% and 9% MAP-POSS content is 73 kJ/mol and is lower than 0% ( about 82kJ/mol). The mechanical loss peak temperature Tp of curing nanocomposites increase with increasing MAP-POSS content and has a highest value when MAP-POSS content is 9%, which is 114.1 oC and higher about 12 oC than pure UPR.

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Periodical:

Advanced Materials Research (Volumes 150-151)

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821-824

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.150-151.821

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Online since:

October 2010

Authors:

Jun Gang Gao, Bei Bei Sun, Xing Li

Keywords:

Composite, Curing Kinetics, Silsesquioxane (SSO), UV-Curable Polyester Coasting

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