Affiliation:
1. Research Institute of Rubber and Plastic Materials Science and Technology Jiangsu Shangshang Cable Group Changzhou P. R. China
2. College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials Soochow University Suzhou P. R. China
Abstract
AbstractPolyethylene 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.
Funder
National Natural Science Foundation of China
Subject
Materials Chemistry,Polymers and Plastics,Surfaces, Coatings and Films,General Chemistry
Cited by
3 articles.
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