Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Physical Properties and EMI Shielding Effect of Polypropylene Filled with Microencapsulated Aluminium Flake

표면처리 알루미늄 플레이크 충전 PP의 역학적 성질 및 EMI 차폐 효과

  • 임승순 (한양대학교 공과대학 섬유공학과) ;
  • 김두천 (한양대학교 공과대학 섬유공학과, 순천대학교 고분자공학과) ;
  • 정창남
  • Published : 1990.12.01

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Abstract

In order to improve mechanical properties of the Al flake/pp composite used EMI shielding materials, Al flake is microencapsulated with LONPLY by phase separation method using organic solvent to improve the adhesion of Al flake/pp interface and the dispersion of Al flake in PP matrix. We assumed that the decrease of tensile strength can be minimized by microencapsulated method for Al flacke/pp composite. Shielding effectness(SE) was found to be 30dB when 15-18 v % of Al flake was added to PP matrix, and the volume resistively was measured as 100-10-1cm in both PP filled microencapsulated and non - capsulated AA flakes. Especially, when the attenuation was measured in 8$^{\circ}$ 120Hz frequency range, for the sample with different thickness(1mm, 3mm) , we can be certainly observed reflection and transmittance.

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