KH550‐SiO2/polyimide insulating paper preparation and characterisation
Minghe Chi,
Xue Sun,
Xiaorui Zhang
et al.
Abstract:Oil‐paper insulation material is an essential component for oil‐filled transformers, and polyimide (PI) insulation paper is a novel material in the field of electricity. The improvement of insulation class for insulation paper has gained significant attention in recent years. In this study, SiO2 nanoparticles were modified with a silane coupling agent (KH550), and the KH550‐SiO2 was added to the fibre membrane through in situ polymerisation. The chemical composition and microcosmic characteristics of the PI po… Show more
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