Sandwich Fibrous Paraffin Wax Encapsulations for Selected Applications

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F23%3A00011976" target="_blank" >RIV/46747885:24410/23:00011976 - isvavai.cz</a>

Result on the web

<a href="https://www.ceec-tac.com/conf7/topics.html" target="_blank" >https://www.ceec-tac.com/conf7/topics.html</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Sandwich Fibrous Paraffin Wax Encapsulations for Selected Applications

Original language description

Phase change materials (PCMs) textiles have applied in various fields. Although there has a significant progress in PCM textiles, there are some problems (e.g., limited PCM loading amount, poor mechanical property of PCM capsules etc.) [1-2]. In our previous work, a sandwich fibrous encapsulation was successfully developed to store PCMs which was a result of weak interfacial adhesion between melting PW and PU nanofibrous membrane [3]. The sandwich fibrous PW encapsulation consisted of PU nanofibrous membrane as barrier layers and PW-coated viscose fabric as PCM-loaded layer. However, the working temperatures of the sandwich fibrous PW encapsulation was not adjusted. Besides, PU nanofibrous membranes are no suitable as outer layer due to their poor mechanical properties and protection layers covering barrier layers and PCM-loaded layers are necessary. In this work, the sandwich fibrous PW encapsulations were prepared, consisting of common cotton fabric as protection layer, PU nanofibrous membranes as barrier layers and PW-coated viscose fabrics as PCM-loaded layer. Seven different PWs were used, including n-tetradecane (TC), n-pentadecane (PC), n-heptadecane (HC), n-octadecane (OC), n-nonadecane (NC), n-eicosane (EC) and n-docosane (DC). The phase transition behaviour and thermal energy storage of different sandwich fibrous PW encapsulations were investigated. After obtaining working temperature ranges of various sandwich fibrous PW encapsulations, the visual-temperature property was then enriched by making a coating of thermochromic pigments on cotton fabric. We believe that the work not only contributes to fields related to thermal energy storage but also initiates the applications of nanofibrous membrane.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

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

Project

<a href="/en/project/GM21-32510M" target="_blank" >GM21-32510M: Advanced structures for thermal insulation in extreme conditions</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

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