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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/29658

    標題: Composite of cyclic olefin copolymer with low graphene content for transparent water-vapor-barrier films
    作者: Lai, Cheng-Lee
    Fu, Ywu-Jang
    Chen, Jung-Tsai
    Wang, Da-Ming
    Sun, Yi-Ming
    Huang, Shu-Hsien
    Hung, Wei-Song
    Hu, Chien-Chieh
    Lee, Kueir-Rarn
    貢獻者: 環境工程與科學系
    關鍵字: Super gas barrier
    日期: 2015-08
    上傳時間: 2016-04-19 19:03:36 (UTC+8)
    出版者: Pergamon-Elsevier Science Ltd
    摘要: This study fabricates a transparent cyclic olefin copolymer (COC)/thermally reduced graphene oxide (TRGO) composite film with low content of TRGO, which exhibits high water vapor barrier properties. With only 0.06 wt% (0.028 vol%) TRGO, the COC/TRGO composite film reduces the water vapor permeability by similar to 21%. The amount of TRGO in this work is 10-100 times lower than that in other polymer/clay or polymer/graphene composites that reduce the water vapor permeability at the same percentage. Low TRGO content has benefits of fabricating a film with low cost, high transparency, and truly excellent flexibility. The water vapor permeabilities of COC/TRGO composites are much lower than those predicted by Cussler or Nielsen model because of the significant rigidification of COG chains near TRGOs. The COC/TRGO composite film was annealed at different temperatures and then surface modified with amphiphilic polymer to further improve its barrier performance. By treating the film with 0.06 wt% TRGO, the water vapor permeability is greatly reduced by similar to 65%. (C) 2015 Elsevier Ltd. All rights reserved.
    關聯: Carbon, v.90, pp.85-93
    Appears in Collections:[環境工程與科學系(所)] 期刊論文

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