Dielectric properties of Semi-IPN Poly(phenylene oxide) Blend/BaTiO 3 composites with type of cross-iinker

Yong Kyun Jang, Hoil Lee, Won Mo Seong, Sang Hoon Park, Ho Gyu Yoon

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The dielectric properties of semi-IPN poly (phenylene oxide) (PPO) blend/BaTiO3(BT) composites are investigated. The composites are fabricated via melt-mixing of crosslinker and peroxide in precursor PPO composite obtained by precipitating the suspension consisted of PPO, BT and toluene into methylethyl ketone, poor solvent of PPO. The permittivity of the precursor PPO composites shows higher value than that of integral-blended PPO composites by extruder and coincides with the theoretical value calculated by logarithmic rule of mixture. The blend of PPO and cross-linked triallyl isocyanurate is most effective for lowering the permittivity and loss tangent owing to the suppression of the orientation polarization of matrix. In contrast, 4,4'-(1,3-phenylene diisopropylidene) bisaniline, which has amine unit in its structure, increases the permittivity as well as loss tangent of the composite, but it has the ability to densify the matrix resin and the interfacial adhesion between the matrix and filler to improves flexural strength and modulus.

Original languageEnglish
Pages (from-to)224-229
Number of pages6
JournalPolymer (Korea)
Volume33
Issue number3
Publication statusPublished - 2009 May

Keywords

  • BaTiO
  • Cross-linker
  • Dielectric properties
  • Polarization
  • Poly (phenylene oxide) blend
  • Semi-interpenetrating polymer network

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics
  • Materials Chemistry

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