Electrospun Polyethylene Glycol/Polyvinyl Alcohol Composite Nanofibrous Membranes as Shape-Stabilized Solid-Solid Phase Change Materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F20%3A00013342" target="_blank" >RIV/46747885:24410/20:00013342 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s42765-020-00038-8" target="_blank" >https://doi.org/10.1007/s42765-020-00038-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s42765-020-00038-8" target="_blank" >10.1007/s42765-020-00038-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrospun Polyethylene Glycol/Polyvinyl Alcohol Composite Nanofibrous Membranes as Shape-Stabilized Solid-Solid Phase Change Materials

Popis výsledku v původním jazyce

In this work, shape-stabilized solid-solid phase change materials (PCMs) were fabricated by simply electrospinning polyethylene glycol (PEG) and polyvinyl alcohol (PVA). Owing to the strong hydrogen bonds and entanglement between those molecular chains of PEG and PVA, PEG was packaged by PVA. The morphological structures, thermal stability and thermal energy storage properties of those fibers were investigated. SEM results showed that those electrospun PVA/PEG composite membranes hold a three-dimensional nonwoven web structure even the content of PEG as high as 70%. The thermal energy storage ability of those composite fibers increased with the increase of the content of PEG. The heat enthalpies of PEG/PVA=7/3 were as high as 78.806 J/g. Moreover, those composite fibers had excellent thermal stability. After 100 heating and cooling cycles, there was almost no obvious change in the melting enthalpy and crystallization enthalpy. Those fibers still maintained good thermal regulation. The simple preparation process, low cost of raw materials and excellent stability endow the PCMs great utilization potentiality in smart textile and energy storage systems.

Název v anglickém jazyce

Electrospun Polyethylene Glycol/Polyvinyl Alcohol Composite Nanofibrous Membranes as Shape-Stabilized Solid-Solid Phase Change Materials

Popis výsledku anglicky

In this work, shape-stabilized solid-solid phase change materials (PCMs) were fabricated by simply electrospinning polyethylene glycol (PEG) and polyvinyl alcohol (PVA). Owing to the strong hydrogen bonds and entanglement between those molecular chains of PEG and PVA, PEG was packaged by PVA. The morphological structures, thermal stability and thermal energy storage properties of those fibers were investigated. SEM results showed that those electrospun PVA/PEG composite membranes hold a three-dimensional nonwoven web structure even the content of PEG as high as 70%. The thermal energy storage ability of those composite fibers increased with the increase of the content of PEG. The heat enthalpies of PEG/PVA=7/3 were as high as 78.806 J/g. Moreover, those composite fibers had excellent thermal stability. After 100 heating and cooling cycles, there was almost no obvious change in the melting enthalpy and crystallization enthalpy. Those fibers still maintained good thermal regulation. The simple preparation process, low cost of raw materials and excellent stability endow the PCMs great utilization potentiality in smart textile and energy storage systems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20503 - Textiles; including synthetic dyes, colours, fibres (nanoscale materials to be 2.10; biomaterials to be 2.9)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

ADVANCED FIBER MATERIALS

ISSN

2524-7921

e-ISSN

—

Svazek periodika

2

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

167-177

Kód UT WoS článku

000672502500005

EID výsledku v databázi Scopus

2-s2.0-85097356435