Thermal energy is a very promising and widely existing energy source. However, the current heat storage method of phase change material not only has a long energy conversion time but also has low heat storage efficiency. Carbon nanotubes (CNTs) based phase change composite materials were prepared by using the carbon nanotubes foam as the highly 3D thermal conductive network and impregnated with phase change material by capillary forces. The morphology of the sample was studied by FIB/SEM focused ion/electron double beam microscopy, showing excellent dispersion quality of CNTs throughout the matrix. The latent heat and crystal structure of the sample were analyzed by DSC and XRD respectively, based on which the mechanisms for the improvement of energy storage capability were investigated. Further, the mechanical properties of the sample were tested by tensile testing machine, and revealed high structural robustness which was very important for their practical applications. This study shows that the CNT foamed based on nanocomposite not only possess very high thermal energy storage efficiency, also reduces the phase change material loss in the circulation phase.


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    Title :

    Composite of CNT foam and phase change material: nano pore structure and the packing of phase change material


    Contributors:
    SUN Wei (author) / ZHOU Guoxiang (author)


    Publication date :

    2019




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown





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