Hydrolyzed hexagonal boron nitride/polymer nanocomposites for transparent gas barrier film
- Authors
- Kim, Tan Young; Song, Eun Ho; Kang, Byung Hyun; Kim, Se Jung; Lee, Yun-Hi; Ju, Byeong-Kwon
- Issue Date
- 24-3월-2017
- Publisher
- IOP PUBLISHING LTD
- Keywords
- gas barrier; water vapor transmission rate (WVTR); oxygen transmission rate (OTR); hydroxyl-functional hexagonal boron nitride nanosheets (OH-BNNS); transparency; layer by layer
- Citation
- NANOTECHNOLOGY, v.28, no.12
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOTECHNOLOGY
- Volume
- 28
- Number
- 12
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/84113
- DOI
- 10.1088/1361-6528/aa5f2e
- ISSN
- 0957-4484
- Abstract
- A flexible thin gas barrier film formed by layer-by-layer (LBL) assembly has been studied. We propose for the first time that hexagonal boron nitride (h-BN) can be used in LBL assembly. When dispersed in water through sonication-assisted hydrolysis, h-BN develops hydroxyl groups that electrostatically couple with the cationic polymer polydiallyldimethylammonium chloride ( PDDA). This process produces hydroxyl-functional h-BN/PDDA nanocomposites. The nanocomposites exhibit well exfoliated and highly ordered h-BN nanosheets, which results in an extremely high visual clarity, with an average transmittance of 99% in the visible spectrum. Moreover, well aligned nanocomposites extend gas diffusion path that reduce water vapor transmission rate to 1.3 x 10(-2) g m(-2) d(-1). The simple and fast LBL process demonstrated here can be applied in many gas barrier applications.
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- Appears in
Collections - College of Science > Department of Physics > 1. Journal Articles
- College of Engineering > School of Electrical Engineering > 1. Journal Articles
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