Effects of organically modified clay loading on rate and extent of cure in an epoxy nanocomposite system

Ingram, S.E. and Pethrick, R.A. and Liggat, J.J. (2008) Effects of organically modified clay loading on rate and extent of cure in an epoxy nanocomposite system. Polymer International, 57 (11). pp. 1206-1214. (http://dx.doi.org/10.1002/pi.2452)

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Abstract

BACKGROUND: Cloisite 30B was added to diglycidyl ether of bisphenol F and cured with diaminodiphenylsulfone to investigate how the organoclay influenced the extent of cure. RESULTS: A substantial increase in the extent of cure was found with the addition of Cloisite 30B, when lower cure temperatures were employed. Cloisite 30B at 2 wt% resulted in a 40 °C increase in glass transition temperature and an increase in the magnitude of the bending modulus even though a high level of intercalated material was detected. CONCLUSIONS: It was observed that the addition of Cloisite 30B to the epoxy system increased the level of cure in the polymer, and was particularly prominent at low cure temperatures. Copyright © 2008 Society of Chemical Industry (Taken from Wiley InterScience web site: http://www3.interscience.wiley.com/journal/121409993/abstract)