Viscosity modeling in novolac-cured epoxies

Arturo Hale, Christopher W. Macosko

Research output: Contribution to journalConference articlepeer-review

9 Scopus citations

Abstract

The viscosity in an epoxy-novolac system was studied as a function of conversion and temperature. The viscosity of the thermosetting system showed to be proportional to a power of the calculated weight-average molecular weight; however, the exponent of the molecular weight varies with temperature. A better correlation is found if the viscosity is expressed as a product of molecular weight and a friction factor which depends on both temperature and Tg. Data of viscosity versus conversion at different temperatures can be described by one single straight line of slope 1 if this approach is employed.

Original languageEnglish (US)
Pages (from-to)1196-1201
Number of pages6
JournalPolymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Materials Science and Engineering
Volume59
StatePublished - Dec 1 1988
EventProceedings of the ACS Division of Polymeric Materials: Science and Engineering - Fall Meeting - Los Angeles, CA, USA
Duration: Sep 26 1988Sep 30 1988

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