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Kinetic analysis and modeling of paper-laminated phenolic printed circuit board (PLP-PCB) pyrolysis using distributed activation energy models (DAEMs)

Shokri, A ; Sharif University of Technology | 2023

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  1. Type of Document: Article
  2. DOI: 10.1016/j.tca.2023.179513
  3. Publisher: Elsevier B.V , 2023
  4. Abstract:
  5. This work explores the pyrolysis characteristics and kinetic behavior of paper-laminated phenolic printed circuit boards (PLP-PCBs) using thermogravimetric analysis under non-isothermal linear heating programs. The initial estimation of the kinetic parameters during the pyrolysis was obtained from the analysis of the experimental data by three isoconversional kinetic models, i.e. Flynn-Wall-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS) integral methods, as well as the Friedman differential method. For all three methods, the apparent activation energy exhibited a strong dependence on the degree of the reaction conversion. To allow for the complexity of the reactions involved in the PLP-PCB pyrolysis, two distributed activation energy models (DAEMs) with a first-order reaction function were derived by assuming the discrete and multi-Gaussian distributions for the activation energies. A six pseudo-component Gaussian DAEM was able to accurately describe the PLP-PCB pyrolysis. By applying the discrete DAEM algorithm, the pyrolysis of PLP-PCB could be precisely characterized by 37 dominating reactions. © 2023 Elsevier B.V
  6. Keywords:
  7. Distributed activation energy model (DAEM) ; Kinetic modeling ; Paper-laminated phenolic printed circuit board ; Pyrolysis ; Thermogravimetric analysis (TGA)
  8. Source: Thermochimica Acta ; Volume 724 , 2023 ; 00406031 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0040603123000825