Abstract
De-crosslinking of silane-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 °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 °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.
| Original language | English |
|---|---|
| Pages (from-to) | 11961-11965 |
| Number of pages | 5 |
| Journal | Industrial and Engineering Chemistry Research |
| Volume | 54 |
| Issue number | 48 |
| DOIs | |
| Publication status | Published - 2015 Dec 9 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
- Industrial and Manufacturing Engineering
Cite this
A Kinetic Study on the De-Crosslinking and Decomposition of Silane-Cross-Linked Polyethylene in Supercritical Methanol. / Hong, Giyoung; Hong, Soon Man; Koo, Chong Min; Baek, Bum Ki; Lee, Hong Shik; Lee, Youn Woo.
In: Industrial and Engineering Chemistry Research, Vol. 54, No. 48, 09.12.2015, p. 11961-11965.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A Kinetic Study on the De-Crosslinking and Decomposition of Silane-Cross-Linked Polyethylene in Supercritical Methanol
AU - Hong, Giyoung
AU - Hong, Soon Man
AU - Koo, Chong Min
AU - Baek, Bum Ki
AU - Lee, Hong Shik
AU - Lee, Youn Woo
PY - 2015/12/9
Y1 - 2015/12/9
N2 - De-crosslinking of silane-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 °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 °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.
AB - De-crosslinking of silane-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 °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 °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.
UR - http://www.scopus.com/inward/record.url?scp=84948971779&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84948971779&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.5b00377
DO - 10.1021/acs.iecr.5b00377
M3 - Article
AN - SCOPUS:84948971779
VL - 54
SP - 11961
EP - 11965
JO - Industrial & Engineering Chemistry Research
JF - Industrial & Engineering Chemistry Research
SN - 0888-5885
IS - 48
ER -