A kinetic study on the supercritical decrosslinking reaction of silane-crosslinked polyethylene in a continuous process

被引：9

作者：

Baek, Bum Ki ^{[1
,2
]}

La, Yun Ho ^{[1
,3
]}

Na, Won Jun ^{[1
,2
]}

Lee, Seung Hwan ^{[1
]}

Hong, Soon Man ^{[1
,4
]}

Han, Haksoo ^{[2
]}

Lee, Youn-Woo ^{[5
]}

Nam, Gi Joon ^{[6
]}

Koo, Chong Min ^{[1
,4
]}

机构：

[1] Korea Inst Sci & Technol, Ctr Mat Architecting, Hwarang Ro 14 Gil 5, Seoul 136791, South Korea

[2] Yonsei Univ, Dept Chem & Biomol Engn, Yonsei Ro 50, Seoul 120749, South Korea

[3] Hanyang Univ, Dept Organ & Nano Engn, 222 Wangsimni Ro, Seoul 133791, South Korea

[4] Univ Sci & Technol, Nanomat Sci & Engn, 176 Gajung Dong, Daejeon 305350, South Korea

[5] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151744, South Korea

[6] LS Cable & Syst Ltd, Platform Technol Res Ctr, Gunpo Si 435831, Gyeonggi Do, South Korea

来源：

POLYMER DEGRADATION AND STABILITY | 2016年 / 126卷

关键词：

Silane-crosslinked polyethylene; Supercritical methanol; Continuous decrosslinking; Kinetics; Recycling; LINKING; DEPOLYMERIZATION; DECOMPOSITION;

D O I：

10.1016/j.polymdegradstab.2016.01.019

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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 degrees C, respectively and activation energy of 132.36 kJ mol(-1). (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：75 / 80

页数：6

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