Open AccessImproved dielectric properties achieved by blending PP and PVDF
Author(s) -
Fan Benhui,
He Delong,
Liu Yu,
Zhou Mingyu,
Zhang Chong,
Bai Jinbo
Publication year - 2019
Publication title -
iet nanodielectrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.23
H-Index - 9
ISSN - 2514-3255
DOI - 10.1049/iet-nde.2018.0038
Subject(s) - dielectric , materials science , low density polyethylene , polypropylene , composite material , dielectric loss , carbon black , polymer , extrusion , polyethylene , lubricant , ternary operation , optoelectronics , natural rubber , programming language , computer science
Polymer films composed of polypropylene (PP) and poly(vinylidene fluoride) (PVDF) have been fabricated by extrusion with filming system. Owing to the low content of crystallites and the lubricant of carbon black, the commercial product PVDF 370 can be compatible with PP by simply blending at the molten state and the obtained film has improved dielectric constant ( ɛ ′ = 4.5) and reduced dielectric loss (tan δ = 0.5%) at 1000 Hz. The modified dielectric properties result from the high dielectric constant of PVDF and low dielectric loss of PP. In addition, by introducing the third polymer, low‐density polyethylene (LDPE), the dielectric constant of the ternary blends (PP/PVDF 370/LDPE) can further be increased.