Theoretical Study on the Grafting Reaction of Maleimide to Polyethylene in the UV Radiation Cross-Linking Process

Polymers

Chunyang Li¹  Baozhong Han¹  Yan Shang¹  Hui Zhang²  Hong Zhao²  Xuan Wang²  Zesheng Li² 

[1] College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150080, China;;Key Laboratory of Engineering Dielectrics and Its Application of Ministry of Education &

关键词: UV radiation cross-linking polyethylene;    graft;    maleimide;    transition;   

DOI  :  10.3390/polym10091044

来源: DOAJ

【 摘 要 】

Theoretical investigation of the reaction of graft maleimide to polyethylene in the UV radiation cross-linking process is accomplished at the B3LYP/6-311+G(d,p) level for high-voltage cable insulation materials. The reaction potential energy surface of the nine reaction channels is identified. The results show that the N,N′-ethylenedimaleimide can connect two 4-methylheptane molecules and act as the cross-linking agent. The calculated reaction potential barrier of forming 4-methylheptane radical by maleimide is higher than that of maleic anhydride. The study is expected to provide a basis for optimizing the UV radiation cross-linking polyethylene process and development more than 500 kV high-voltage cable insulation materials in practical applications.

【 授权许可】

Unknown