Preparation of core-sheath nanofibers with high latent heat by thermal cross-linking and coaxial electrospinning

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F21%3A00009520" target="_blank" >RIV/46747885:24410/21:00009520 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0032386121005814?via=ihub#" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0032386121005814?via=ihub#</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polymer.2021.123958" target="_blank" >10.1016/j.polymer.2021.123958</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Preparation of core-sheath nanofibers with high latent heat by thermal cross-linking and coaxial electrospinning

Popis výsledku v původním jazyce

Stable energy storage materials have become the research focus today. Coaxial electrospinning can prepare core-sheath nanofibers loaded with phase change materials (PCMs). This method requires the sheath solution have good spinnability and encapsulation ability. Suitable solutions can be prepared by the thermal cross-linking method to improve the properties of nanofibers. Choose hexamethylene diisocyanate (HDI) and β-cyclodextrin (β-CD) as cross-linking agents to adjust the performance of polyvinyl butyral (PVB)/N, N-dimethylformamide (DMF) solution. The adjustment of β-CD addition amount and thermal cross-linking time prepared the best sheath solution as PVB/50CD/HDI. The latent heat of nanofibers prepared by using this sheath solution could be as high as 137.05 J/g. In the meantime, the properties of nanofibers in thermal decomposition, mechanical strength, and elongation rate were also improved. The thermal cycle test proved the good stability of core-sheath nanofibers. This work lays the foundation for the further development of temperature-regulating fibers with high latent heat and performance.

Název v anglickém jazyce

Preparation of core-sheath nanofibers with high latent heat by thermal cross-linking and coaxial electrospinning

Popis výsledku anglicky

Stable energy storage materials have become the research focus today. Coaxial electrospinning can prepare core-sheath nanofibers loaded with phase change materials (PCMs). This method requires the sheath solution have good spinnability and encapsulation ability. Suitable solutions can be prepared by the thermal cross-linking method to improve the properties of nanofibers. Choose hexamethylene diisocyanate (HDI) and β-cyclodextrin (β-CD) as cross-linking agents to adjust the performance of polyvinyl butyral (PVB)/N, N-dimethylformamide (DMF) solution. The adjustment of β-CD addition amount and thermal cross-linking time prepared the best sheath solution as PVB/50CD/HDI. The latent heat of nanofibers prepared by using this sheath solution could be as high as 137.05 J/g. In the meantime, the properties of nanofibers in thermal decomposition, mechanical strength, and elongation rate were also improved. The thermal cycle test proved the good stability of core-sheath nanofibers. This work lays the foundation for the further development of temperature-regulating fibers with high latent heat and performance.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Polymer

ISSN

0032-3861

e-ISSN

—

Svazek periodika

228

Číslo periodika v rámci svazku

123958

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

20

Strana od-do

1-20

Kód UT WoS článku

000672561500002

EID výsledku v databázi Scopus

2-s2.0-85108416624