Kinetic study of the novolac resin curing process using model fitting and model-free methods

Chao Zhang, Wieslaw K. Binienda, Liming Zeng, Xiaochuan Ye, Shuwen Chen

科研成果: 期刊稿件文章同行评审

63 引用 (Scopus)

摘要

The curing behavior of novolac type phenolic resin was studied through differential scanning calorimetry (DSC) using model fitting and model-free (isoconversion) kinetic methods. For the model fitting kinetic study, a piecewise fitting approach was developed to describe the dependence of cure reaction rate on temperature and curing degree. The piecewise model displayed excellent modeling ability. In the model-free kinetic study, Friedman, and Kissinger-Akahira-Sunose methods were used to calculate the curing activation energy. The dependence curve of activation energy on conversion and the piecewise model fitting results both displayed a change in the kinetic reaction mechanism from the autocatalytic to n-order regime. According to the isothermal prediction results, the model-free kinetic methods show much better prediction ability, compared with the model fitting methods. Also, Friedman and Kissinger-Akahira-Sunose methods were found to show similar results in predicting the isothermal curing behavior of this novolac resin.

源语言英语
页(从-至)63-69
页数7
期刊Thermochimica Acta
523
1-2
DOI
出版状态已出版 - 20 8月 2011
已对外发布

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