Paper Title:
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.

  Info
Periodical
Advanced Materials Research (Volumes 150-151)
Edited by
Jinglong Bu, Zhengyi Jiang and Sihai Jiao
Pages
821-824
DOI
10.4028/www.scientific.net/AMR.150-151.821
Citation
J. G. Gao, B. B. Sun, X. Li, "Cure Kinetics and Thermal Property of UV-Curable Polyester Nanocomposites Coating Modified with MAP-POSS", Advanced Materials Research, Vols. 150-151, pp. 821-824, 2011
Online since
October 2010
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$32.00
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