Hong, Giyoung Hong, Soon Man Koo, Chong Min Baek, Bum Ki Lee, Hong-shik Lee, Youn-Woo 2024-01-20T05:31:14Z 2024-01-20T05:31:14Z 2021-09-03 2015-12-09 0888-5885 https://pubs.kist.re.kr/handle/201004/124633 De-crosslinking of silme-cross-linked polyethylene (S-XLPE) in supercritical methanol was investigated. Changes in gel content and molecular weight with reaction temperature and reaction time were analyzed in a batch reactor, and kinetic parameters were calculated from the experimental data. The reaction time for de-crosslinking shortened as the reaction temperature increased and the complete de-crosslinking of S-XLPE was achieved at 320 degrees C and 20 min. The de-crosslinking rate of S-XLPE fit well with the first order reaction model. In addition, the molecular weight of de-cross-linked polyethylene (DXPE) decreased further as reaction temperature and reaction time increased when the reaction temperature exceeded 360 degrees C relative to that of the original polyethylene before being cross-linked. The decreasing molecular weight trend also fit well with the first order reaction model. English AMER CHEMICAL SOC DEPOLYMERIZATION A Kinetic Study on the De-Crosslinking and Decomposition of Silane-Cross-Linked Polyethylene in Supercritical Methanol Article 10.1021/acs.iecr.5b00377 1 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.54, no.48, pp.11961 - 11965 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 54 48 11961 11965 scie scopus 000366341800004 2-s2.0-84948971779 Engineering, Chemical Engineering Article DEPOLYMERIZATION