Diamine vapor treatment of viscoelastic graphene oxide liquid crystal for gas barrier coating.
作者： Ohchan Kwon , Dae Woo Kim , Ji Hoon Kim , Sung-Soo Kim , Eunji Choi
DOI: 10.1038/S41598-021-88955-5
关键词:
摘要: A layered graphene oxide/ethylenediamine (GO/EDA) composite film was developed by exposing aqueous GO liquid crystal (GOLC) coating to EDA vapor and its effects on the gas barrier performance of were systematically investigated. When a GO/EDA with thickness approximately 1 μm applied neat polyethylene terephthalate (PET) film, resultant highly impermeable molecules, particularly reducing permeance up 99.6% for He 98.5% H2 in comparison PET film. The properties can be attributed long diffusion length through stacked nanosheets. crosslink oxygen-containing groups GO, enhancing mechanical hardness elastic modulus values 1.14 28.7 GPa, respectively. By synergistic effect viscoelastic GOLC volatility EDA, this method complex geometries intercalation spontaneously achieved scaffold GOLC.
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