This Article Full Text (PDF) All Versions of this Article: 0021998305057430v1 40/13/1215    most recent References Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Yiyun, C. Articles by Pingsheng, H. Search for Related Content Social Bookmarking                         What's this?

Cure Behavior of Epoxy Resin E51–Melamine Phosphate (MP)–MeTHPA–2,4-EMI Halogen-free Fire Retardant Composite by the Dynamic Torsional Vibration Method

School of Life Sciences, University of Science and Technology of China Hefei 230027, Anhui, PR China; Department of Polymer Science and Engineering University of Science and Technology of China Hefei, 230026, Anhui, PR China; yycheng{at}mail.ustc.edu.cn

He Pingsheng

Department of Polymer Science and Engineering University of Science and Technology of China Hefei, 230026, Anhui, PR China

The cure behavior of epoxy resin E51–melamine phosphate (MP)–methyltetrahydrophthalic anhydride (MeTHPA)–2-ethyl-4-methyl-imidazole (2,4-EMI) halogen-free fire retardant composite at varying temperatures and MP loading is investigated by the dynamic torsional vibration method (DTVM). The dynamic parameters, such as gelation time t_g, apparent activation energy E_a, and curing rate k are estimated as well. The theoretical prediction is in good agreement with the experimental results obtained by the DTVM. The results show that the rate of cure reactions depends distinctly on the cure temperature. At low MP loadings, the t_g for the systems does not change obviously, while at higher MP loadings, it has a remarkable increase. Furthermore, the Flory's gelation theory and the Avrami equation are used to describe the cure behavior of the halogen-free fire retardant composite system.

Key Words: epoxy resin • cure behavior • Flory's theory • Avrami equation • melamine phosphate • halogen-free fire retardant

This version was published on July 1, 2006

Journal of Composite Materials, Vol. 40, No. 13, 1215-1223 (2006)
DOI: 10.1177/0021998305057430


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?