Paper Title:
Novel Thermally Stable Epoxy-polyurethane Composites: Preparation, Characterization
  Abstract

A novel series of hydroxyl terminated bisphenol-A type novolac epoxy resins modified with propionic acid (MEP) were prepared by one-step ring-opening reaction process in the presence of tetramethylammonium bromide catalyst. The obtained MEP was characterized using FTIR, 1HNMR analyses. In addition, Intercross-linked epoxy-polyurethane composites networks were also obtained by curing reaction among MEP, cross linker polyisocyanate IL1351 and phthalic anhydride. The thermal characteristics of the epoxy-polyurethane composites were determined by thermogravimetric analysis (TGA). The thermal stability of the cured MEP with different ring-opening rate and cured alkyd polyol A450 were compared. The results showed that the obtained epoxy-polyurethane composites had much better thermal stability than the conventional polyurethane system A450/IL1351, and the thermal stability of them was correlated to the content of MEP.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Chapter
6 Functional Materials
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
2742-2747
DOI
10.4028/www.scientific.net/AMR.239-242.2742
Citation
J. Lin, Q. Z. Yang, X. F. Wen, Z. Q. Cai, P. H. Pi, J. Cheng, Z. R. Yang, "Novel Thermally Stable Epoxy-polyurethane Composites: Preparation, Characterization", Advanced Materials Research, Vols. 239-242, pp. 2742-2747, 2011
Online since
May 2011
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Price
$35.00
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