초록 |
The encapsulation is an interesting technique to prevent the leakage of of PCMs, including in the coaxial electrospinning. In this study, the melt coaxial electrospinning method was used to encapsulate two kinds of phase change materials consisting of PEG and Eicosane with PVDF as the sheath material. The core-sheath fiber non woven mats of PEG/PVDF and Eicosane/PVDF were successful fabricated and confirmed by WCA measurements, XPS analysis and TEM. By DSC and TGA techniques, it was shown that the obtained non woven mats had good thermal stability and relative high latent heat. Finally, the mechanical property and thermal insulating property were evaluated and indicated the applicability of these materials as good PCMs. |