An efficient strategy triggered crosslinking of polyethylene and its application in degassing-free ultrahigh voltage power cables

被引：4

作者：

Sun, Wu-Ji ^{[1
,2
,3
]}

Liu, Xiong-Jun ^{[1
]}

Yuan, Li-Juan ^{[1
]}

Xiao, Han ^{[1
]}

Lu, Jian-Mei ^{[2
,3
]}

机构：

[1] Jiangsu Shangshang Cable Grp, Res Inst Rubber & Plast Mat Sci & Technol, Changzhou, Peoples R China

[2] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Natl United Engn Lab Functionalized Environm Adsor, Suzhou, Peoples R China

[3] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Natl United Engn Lab Functionalized Environm Adsor, Suzhou 215123, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2023年 / 140卷 / 20期

基金：

中国国家自然科学基金;

关键词：

crosslinked polyethylene; degassing-free; finite element analysis; ultrahigh voltage; LOW-DENSITY POLYETHYLENE; MOLECULAR-WEIGHT POLYETHYLENE; LINKED LOW-DENSITY; PHYSICAL-PROPERTIES; THERMAL-PROPERTIES; PEROXIDE; BEHAVIOR; MELT;

D O I：

10.1002/app.53844

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polyethylene has excellent electrical insulation, but its low thermal stability and breakdown strength limit its application in the field of high-voltage (HV) and ultrahigh voltage (UHV) power cables. In this work, we have developed a new organic peroxide, 2,5-dimethyl-2,5-di(tert-butylperoxy) hexane (Bi25), which can efficiently trigger the crosslinking of polyethylene (Bi25-XLPE). Bi25-XLPE does not produce gas byproducts and has a longer scorching time. All performance of Bi25-XLPE sheets fulfill the standard of the 500 kV power cable insulation due to the void-free nature, higher crosslinking density and crystallinity. In addition, one 500 kV power cable model was constructed by COMSOL, which confirmed the breakdown strength (up to 61.66 kV/mm) and stability of Bi25-XLPE.

引用

页数：9

共 29 条

[21] Research and development of ±250 kV DC XLPE cables [J].