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    Study of mechanical anisotropy of single walled carbon nanotube and polyvinyl alcohol polymer nanocomposite with a controlled alignment process

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    Type
    Article
    Authors
    Kalakonda, Parvathalu
    Banne, S.
    Kalakonda, P. B.
    KAUST Department
    Physical Science and Engineering (PSE) Division
    Date
    2022-09-29
    Embargo End Date
    2023-09-29
    Permanent link to this record
    http://hdl.handle.net/10754/682314
    
    Metadata
    Show full item record
    Abstract
    Single Walled Carbon Nanotube (SWCNT) and polyvinyl alcohol (PVA) Polymer nanocomposites with the controlled mechanical alignment process have been used for structural anisotropy applications due to their desirable thermal and mechanical properties as well as their tunable degradability. In this work, we fabricated the nanocomposite scaffolds from forming hydrogels of individually dispersed SWCNTs and then partial backfilling with PVA polymer. Our fabrication method helps to minimize the aggregation of SWCNT and improve the degree of uniform dispersion of SWCNT in the polymer matrix. We further compared the mechanical properties in both directions of nanocomposite with different SWCNTs concentration. We observed that the tensile modulus increases more in the aligned direction than the normal to direction of SWCNTs at optimum 12wt% nanotube loading. Further, the nanotube networks suppress the polymer glass transition and extend the mechanical integrity of the polymer. The controlling internal orientation order of nanotubes with the help of alignment process in nanocomposite scaffolds can bring interesting highly structural anisotropic properties to a wide range of smart material industries such as aerospace, defense, and healthcare.
    Citation
    Kalakonda, P., Banne, S., & Kalakonda, P. B. (2022). Study of mechanical anisotropy of single walled carbon nanotube and polyvinyl alcohol polymer nanocomposite with a controlled alignment process. Journal of Polymer Research, 29(10). https://doi.org/10.1007/s10965-022-03279-w
    Sponsors
    We thank to the Carnegie Mellon University, King Abdullah University of Science and Technology (KAUST) for financial support.
    Publisher
    Springer Science and Business Media LLC
    Journal
    JOURNAL OF POLYMER RESEARCH
    DOI
    10.1007/s10965-022-03279-w
    Additional Links
    https://link.springer.com/10.1007/s10965-022-03279-w
    ae974a485f413a2113503eed53cd6c53
    10.1007/s10965-022-03279-w
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division

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