• Nanocomposite of Ethyl Cellulose Using Environment-Friendly Plasticizer
  • Choi SH, Cho MS, Kim D, Kim JH, Lee DH, Shim SJ, Nam JD, Lee Y
  • 친환경 가소제를 첨가한 에틸 셀룰로오스 나노복합체
  • 최성헌, 조미숙, 김덕준, 김지흥, 이동현, 심상준, 남재도, 이영관
Abstract
In this study, ethyl cellulose (EC)/montmorilloniote (MMT) nanocomposite films plasticized with environmentalfriendly plasticizer (BET, EBN, ESO) were prepared by melt process using Hakke mixer. The Tg of plasticized EC films decreased from 122 to 71 ℃ with the increase in the BET content up to 30 wt%. The addition of 10 wt% epoxidized soybean oil (ESO) as the second plasticizer cause the further drop of Tg from 81 to 61 ℃. The plasticizer-effect of BET was better than that of EBN. When the plasticizer was added into the EC films, the mechanical properties of EC films was decreased, however the addition of montmorillonite (MMT) into the EC films or the ring opening reaction of ESO plasticizer cause enhancement of mechanical properties.

본 연구에서는 친환경 가소제(BET, EBN, ESO)를 첨가한 에틸 셀룰로오스 필름과 몬모릴로나이트(MMT) 나노입자를 이용한 생분해성 나노복합재료를 Hakke mixer를 이용하여 용융가공 공정으로 제조하였다. 제조한 에틸 셀룰로오스 필름의 유리전이온도는 BET의 함량을 30 wt%까지 증가시켰을 때 122 ℃에서 71 ℃로 감소하는 결과를 보였다. 여기에 2차 가소제로 에폭시화된 콩기름을 10 wt% 함량으로 첨가할 경우에 유리전이온도가 81 ℃에서 61 ℃로 감소하였다. 가소효과는 EBN보다 BET가 더 효과적이었다. 에틸 셀룰로오스 필름에 가소제를 첨가할수록 기계적인 물성은 감소하였으나, 몬모릴로나이트의 첨가와 ESO 가소제의 에폭시 개환중합을 통하여 기계적 물성을 증가시킬 수 있었다.

Keywords: ethyl cellulose; environmental-friendly plasticizer; montmorillonite

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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
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This Article

  • 2005; 29(4): 399-402

    Published online Jul 25, 2005

  • Received on Apr 13, 2005
  • Accepted on May 19, 2005