• Effect of Ozone Treatment on Dyeability of Polyethylene Film
  • Park SJ, Shin JS, Kim HY, Lee DR
  • 오존 처리가 폴리에틸렌 필름의 염색성에 미치는 영향
  • 박수진, 신준식, 김학용, 이덕래
Abstract
The surface energy and the effect of functional groups on the surface of the ozone-treated low-density polyethylene (LDPE) film were studied. Treatment conditions were treatment conditions were treatment time, total amount of transferred ozone, and ozone concentration. The introduction of polar groups on the surface of LDPE film after ozone treatment was confirmed by FTIR-ATR and XPS analyses. Surface free energy of the LDPE film was examined by a contact angle method. The ozone treated-LDPE film showed a decreased water contact angles about 15° mainly due to the increased concentration of oxygen-containing functional groups, which was attributed to the increased surface free energy or O1S/C1S. Also, the concentrations of the oxygen-containing functional groups on the surface of LDPE film increased with ozone treatment time and concentration, whereas no significant effects were found for the total amount of transferred ozone. From the dyeability test using Kubelka-Munk equation, it was found that the ozone treatment plays an important role in the growth of oxygen-containing functional groups of LDPE film, resulting in the improvement of dyeability for basic dyeing agent.

오존 처리된 저밀도 폴리에틸렌 (LDPE) 필름의 표면 작용기와 표면 자유에너지에 대하여 고찰하였다. 오존 표면처리 조건을 각각 처리시간, 오존 생산량, 그리고 오존의 농도로 변화시켰으며, 오존 처리된 LDPE 필름 표면에 도입된 작용기는 FTIR-ATR과 XPS분석을 통하여 알아보았다. LDPE 필름의 표면 자유에너지는 접촉각 측정을 통하여 고찰하였다. 실험결과, 오존으로 표면처리된 LDPE 필름은 표면에 형성된 산소 함유 작용기로 인하여 물 접촉각이 15° 정도 감소하였고, 그 결과 표면 자유에너지의 증가 및 O1S/C1S의 증가를 확인할 수 있었다. 또한, 표면 자유에너지와 산소 함유 작용기는 오존 표면처리 시간과 오존의 농도에 비례하는 관계를 보인 반면, 오존의 총 발생량의 변화는 표면 자유에너지 및 O1S/C1S의 증가와는 무관하였다. Kubelka-Munk 식을 이용한 염색성 측정 결과로부터, 오존 표면처리는 LDPE 필름 표면에 산소 작용기를 형성시키는데 중요한 역할을 하는 것을 확인할 수 있었으며, 최종 염기성 염료에의 염색성을 향상시켰다.

Keywords: ozone treatment; low-density polyethylene; contact angle; surface free energy; dyeability

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2024 Impact Factor : 0.6
  • Indexed in SCIE

This Article

  • 2003; 27(2): 98-105

    Published online Mar 25, 2003

  • Received on Nov 27, 2002
  • Accepted on Jan 10, 2003