Article
  • Synthesis and Properties of Silicone Modified Polyamide
  • Park JJ, Park CK, Lee YM, Huh WS
  • 실리콘 변성 폴리아미드의 합성과 물성
  • 박정준, 박창규, 이영무, 허완수
Abstract
Siloxane group was introduced to polyamide in order to improve the resistance of water absorption characteristics. The hydrolyzed product reacted with siloxane diamines having different molecular weights. The structure of reaction product was confirmed by IR spectra. DSC thermograms showed that the Tg and the Tm of the silicone modified polyamides were reduced compared with virgin polyamide. X-ray diffraction experiment exhibited that as the siloxane diamine oligomer was added, the polymer became amorphous. Finally, it became fully amorphous when silicone diamine content exceeds 0.5%. Contact angle measurement of silicone modified polyamide showed an increase of hydrophobicity with introducing siloxane units. The moisture resistance of silicone modified polyamide was improved more than one hundred times compared with unmodified polyamides

폴리아미드의 흡습에 따른 문제를 개선하기 위하여 폴리아미드에 실론기를 도입하였다. 폴리아미드를 가수분해한 후 실록산 디아민과 반응시켜 실리콘변성 폴리아미드를 합성하였다. IR분석으로 반응이 진행되었음을 확인하였다. DSC 분석결과 폴리아미드와 가수분해물에 비해 실리콘 변성 폴리아미드는 Tg 및 Tm이 저하된는 것을 확인할 수 있었다. X-ray 회절 분석 결과 실록산 디아민 올리고머가 첨가됨에 따라 2θ=21°부근에서 결정성 피크가 감소하는 것으로 보아 나일론의 결정구조가 무정형화 되는 것을 확인할 수 있었다. 실록산 디아민 올리고머가 첨가됨에 따라 접촉각이 커짐을 확인하여 소수성의 증가를 확인할 수 있었으며, 흡습실험에서는 실리콘 함유량 증가에 따라 최고 100배 이상의 흡습도 저하를 가져왔다.

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1994; 18(2): 159-165

    Published online Mar 25, 1994