Enhanced breakdown strength and electrical tree resistance properties of MMT/SiO 2 /LDPE multielement composites | Zendy

Zhang Xiaohong | Zendy; Shi Zexiang | Zendy; Ma Lisha | Zendy; Gao Junguo | Zendy; Guo Ning | Zendy

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Enhanced breakdown strength and electrical tree resistance properties of MMT/SiO 2 /LDPE multielement composites

Author(s) -

Zhang Xiaohong,

Shi Zexiang,

Ma Lisha,

Gao Junguo,

Guo Ning

Publication year - 2019

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.47364

Subject(s) - low density polyethylene , materials science , composite material , polyethylene , nanocomposite , montmorillonite , composite number

Montmorillonite (MMT)/low‐density polyethylene (LDPE) nanocomposites have excellent partial discharge resistance and electrical tree resistance compared with pure LDPE. However, the MMT/LDPE nanocomposites have low breakdown strength due to the poor compatibility between nano‐MMT and LDPE. In order to improve the breakdown strength of the MMT/LDPE composites without changing the LDPE matrix, an MMT/SiO 2 /LDPE multielement composite was prepared by melt blending, and its breakdown strength and electrical tree resistance properties were investigated. The results show that the MMT/SiO 2 /LDPE multielement composite has excellent breakdown strength and electrical tree resistance properties compared with the MMT/LDPE composite. The reasons for the excellent insulation properties of the MMT/SiO 2 /LDPE multielement composites were analyzed by exploring the effects of MMT and SiO 2 on the microstructure and trap characteristics of LDPE. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47364.

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