Gas barrier properties evaluation for boron nitride nanosheets-polymer (polyethylene-terephthalate) composites
APPLIED NANOSCIENCE(2020)
摘要
Hexagonal boron nitride nanosheets (BNNS) are dispersed in polyethylene-terephthalate (PET) via temperature-induced solution processing. The BNNS/PET composites are evaluated for carbon dioxide (CO 2 ) and oxygen (O 2 ) permeation reduction. The free-standing composite membranes have shown a maximum 96% permeation reduction at very minute filler loading (0.005 wt% BNNS) in comparison to the base polymer when subjected to an 8 h test run. Interestingly, BNNS loading beyond 0.005 wt% rendered complete permeation reduction. The inclusion of high aspect ratio BNNS, homogeneous dispersion inside PET and the wiggling effect around nanosheets per flake have increased the tortuous path for the gas flow. The experimental results have been verified through Bharadwaj’s, Neilson’s, Lape’s and Cussler’s models. The dispersion state is assessed via scanning electron microscope (SEM) while x-ray diffraction (XRD) has confirmed the formation of composites. Tensile testing results showed the enhanced mechanical robustness of BNNS/PET composites as a function of filler loading.
更多查看译文
关键词
Polymer composites,2D nanosheets,PET,Gas barrier properties,Liquid phase exfoliation
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要