https://scholars.lib.ntu.edu.tw/handle/123456789/406349
Title: | Composite of cyclic olefin copolymer with low graphene content for transparent water-vapor-barrier films | Authors: | Lai C.-L. Fu Y.-J. Chen J.-T. Wang D.-M. Sun Y.-M. Huang S.-H. Hung W.-S. Hu C.-C. Lee K.-R. |
Issue Date: | 2015 | Journal Volume: | 90 | Start page/Pages: | 85-93 | Source: | Carbon | Abstract: | 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 ?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 COC 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 ?65%. ? 2015 Elsevier Ltd. All rights reserved. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/406349 | ISSN: | 00086223 | DOI: | 10.1016/j.carbon.2015.04.006 |
Appears in Collections: | 化學工程學系 |
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