Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Characteristics of Surface Appearance of Zn Electrodeposits with Polyaniline and Additives

폴리아닐린과 첨가제에 따른 아연전기도금층의 표면 외관 특성

  • 이상백 (자동차부품 및 소재연구개발센터) ;
  • 박형호 (회유금속 소재 연구소) ;
  • 배인성 (회유금속 소재 연구소) ;
  • 윤재식 (회유금속 소재 연구소) ;
  • 김병일 (순천대학교 재료·금속공학과)
  • Published : 2002.02.01
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Abstract

Effect of polyaniline and additives on surface appearance of Zn electrodeposition was investigated by SEM and XRD analyzing. We carried out the experiment from sulfate Zinc bath containing sulfonated polyaniline, gelatin and thiourea by EG(Electrogalvanizing) simulator. Addition of polyaniline and gelatin in bath, crystal size and shape of hexagonal plane of Zn crystal reduced. Mixing of thiourea, however, brittle deposits were observed because of the difference between vertical growth and parallel growth. (1011) peak appeared with polyaniline and gelatin in XRD analysis. In case of mixing of polyaniline, gelatin and thiourea, (1011) peak appeared and intensity of Zn basal plane decreased. These results suggested that overpotential increased with addition of polyaniline and additives In bath.

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