For the first time, a kinetic study on the supercritical decrosslinking reaction of silane-crosslinked polyethylene (S-XLPE) in a continuous process was conducted. The decrosslinking reaction in a continuous process was corresponding to the first-order reaction model in which the reaction rate was linearly proportional to the gel content. The residual gel content exponentially decreased with reaction time. Reaction constant was observed exponentially related to the reaction temperature. The continuous decrosslinking reaction revealed kinetic constants of 1.355 ± 0.103, 2.715 ± 0.177, and 4.348 ± 0.218 min-1 at 360, 380 and 390 °C, respectively and activation energy of 132.36 kJ mol-1.
|Number of pages||6|
|Journal||Polymer Degradation and Stability|
|Publication status||Published - 2016 Apr 1|
Bibliographical noteFunding Information:
This study was supported by the R&D Center for Valuable Recycling (Global-Top R&BD Program) of the Ministry of Environment (Project No.: GT-11-C-01-240-0) and by grants from the Fundamental R&D Program for Core Technology of Materials and the Industrial Strategic Technology Development Program funded by the Ministry of Knowledge Economy , Republic of Korea , and partially supported by a grant from Materials Architecturing Research Center of Korea Institute of Science and Technology (KIST) .
© 2016 Elsevier Ltd.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Polymers and Plastics
- Materials Chemistry