Characterizations of Flexible Clay-PVA Hybrid Films: Thermo-optical Properties, Morphology, and Gas Permeability
- Authors
- Shin, Jieun; Ham, Miran; Kim, Jeong Cheol; Chang, Jin-Hae
- Issue Date
- Sep-2011
- Publisher
- POLYMER SOC KOREA
- Keywords
- saponite; poly (vinyl alcohol); hybrid; clay film
- Citation
- POLYMER-KOREA, v.35, no.5, pp 402 - 408
- Pages
- 7
- Journal Title
- POLYMER-KOREA
- Volume
- 35
- Number
- 5
- Start Page
- 402
- End Page
- 408
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/26896
- DOI
- 10.7317/pk.2011.35.5.402
- ISSN
- 0379-153X
2234-8077
- Abstract
- To improve Na+-saponite(SPT) film flexibility, we prepared SPT hybrid clay films with various poly (vinyl alcohol) (PVA) concentrations(0 similar to 10 wt%) using the solution intercalation method. In this study, we investigated the thermo-optical properties, morphology, and gas permeability of the SPT hybrid films. We also examined the relationship between the film properties and PVA content using wide angle X-ray diffraction measurements (XRD), field emission scanning electron microscopy (FE-SEM), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), thermomechanical analysis (TMA), ultraviolet-visible(UV-vis) spectroscopy, and oxygen transmission rate(O2TR) testing. The properties of the clay hybrid films were strongly affected by PVA filler content. The presence of a small amount of PVA was sufficient to improve the flexibility of SPT hybrid films.
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