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Encapsulation of Tetradecanal in Pol...

Chen, Jiahao.

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Encapsulation of Tetradecanal in Polystyrene Fibers Through Electrospinning for Thermal Energy Storage.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Encapsulation of Tetradecanal in Polystyrene Fibers Through Electrospinning for Thermal Energy Storage./
作者:	Chen, Jiahao.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
面頁冊數:	45 p.
附註:	Source: Masters Abstracts International, Volume: 81-10.
Contained By:	Masters Abstracts International81-10.
標題:	Environmental health. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27923589
ISBN:	9781658455916

Encapsulation of Tetradecanal in Polystyrene Fibers Through Electrospinning for Thermal Energy Storage.
Chen, Jiahao.

Encapsulation of Tetradecanal in Polystyrene Fibers Through Electrospinning for Thermal Energy Storage. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 45 p.

Source: Masters Abstracts International, Volume: 81-10.

Thesis (M.S.)--Long Island University, The Brooklyn Center, 2019.

This item must not be sold to any third party vendors.

This work demonstrates a facile approach to the fabrication of tetradecanol (TD)-containing polystyrene (PS) nanofibers with TD/PS weight ratios up to 3 to 1 in the final mass of composite nanofibers. Due to the high loading and light weight of encapsulated TD and the porous nature of PS matrix, the obtained TDPS fiber matrix had a great thermal energy storage capacity up to 60% of pristine TD that no one have ever achieved. According to the recently reported values, which were less than 50%, our result is higher than those of other peer groups. The direct optical microscopy (OM) observation, IR spectra, Raman spectra, and differential scanning calorimeter (DSC) thermograms of TDPS nanofibers showed that most of TD was encapsulated inside the composite nanofibers instead of cover on the surface. The X-ray diffraction (XRD) patterns indicated that the crystal size of TD in fiber matrix increased with the increase of TD loading in the composite nanofibers. Moreover, the DSC run in T4P mode unveiled that the released latent heat during crystallization could raise the temperature of TDPS composite nanofibers above the onset temperature of crystallization, which was greatly different from DSC run in the traditional TI mode. Also, as the weight percentage of TD in the composite nanofibers increased, the undesirable supercooling effect was greatly suppressed. Furthermore, the TDPS composite nanofibers showed robust cycling stability and reusability during 100 continuous heating-cooling cycles in the temperature range of 0-80 °C. The TDPS composite nanofibers demonstrated excellent structural stability after solvent extraction and prolonged heat treatment. The PS matrix with a higher weight percentage of TD have a lower rate of TD leaking than PS matrix with a lower weight percentage of TD.

ISBN: 9781658455916Subjects--Topical Terms:

543032
Environmental health.
Subjects--Index Terms:

Electrospinning

Encapsulation of Tetradecanal in Polystyrene Fibers Through Electrospinning for Thermal Energy Storage.
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520 $a This work demonstrates a facile approach to the fabrication of tetradecanol (TD)-containing polystyrene (PS) nanofibers with TD/PS weight ratios up to 3 to 1 in the final mass of composite nanofibers. Due to the high loading and light weight of encapsulated TD and the porous nature of PS matrix, the obtained TDPS fiber matrix had a great thermal energy storage capacity up to 60% of pristine TD that no one have ever achieved. According to the recently reported values, which were less than 50%, our result is higher than those of other peer groups. The direct optical microscopy (OM) observation, IR spectra, Raman spectra, and differential scanning calorimeter (DSC) thermograms of TDPS nanofibers showed that most of TD was encapsulated inside the composite nanofibers instead of cover on the surface. The X-ray diffraction (XRD) patterns indicated that the crystal size of TD in fiber matrix increased with the increase of TD loading in the composite nanofibers. Moreover, the DSC run in T4P mode unveiled that the released latent heat during crystallization could raise the temperature of TDPS composite nanofibers above the onset temperature of crystallization, which was greatly different from DSC run in the traditional TI mode. Also, as the weight percentage of TD in the composite nanofibers increased, the undesirable supercooling effect was greatly suppressed. Furthermore, the TDPS composite nanofibers showed robust cycling stability and reusability during 100 continuous heating-cooling cycles in the temperature range of 0-80 °C. The TDPS composite nanofibers demonstrated excellent structural stability after solvent extraction and prolonged heat treatment. The PS matrix with a higher weight percentage of TD have a lower rate of TD leaking than PS matrix with a lower weight percentage of TD.
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