Preparation and Barrier Property of Graphene Oxide/Polyvinyl Alcohol Composites
Journal Title: 河南科技大学学报（自然科学版） - Year 2017, Vol 38, Issue 2
Abstract
Graphene oxide( GO) was prepared by flake graphite. Then,GO was introduced into polyvinyl alcohol matrix to fabricate GO / PVA composites. By means of X-ray diffraction analysis and differential scanning calorimetry analysis,the crystallization behaviors of the composites were investigated. Hydrogen gas barrier property of the composites was also determined by using a gas permeability tester. The results indicate that GO mass fraction plays an important role in the crystallization behavior of PVA. When the GO mass fraction is lower than 0. 5%,the layered GO leads to a increase in the crystallinity of PVA. However,When the GO mass fraction is higher than 0. 5%,the crystallinity of PVA is decreased. The hydrogen gas barrier property of composites is influenced by the synergistic effects of GO mass fraction and crystallinity of PVA.
Authors and Affiliations
Hongyu LIU, Hongguang WANG, Jichun LIU, Jinghui ZHANG, Qingshan NIU
Keywords
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