Silica-coated poly(glycidyl methacrylate-ethylene dimethacrylate) beads containing organic phase change materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F16%3A00464020" target="_blank" >RIV/61389013:_____/16:00464020 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.tca.2016.08.016" target="_blank" >http://dx.doi.org/10.1016/j.tca.2016.08.016</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tca.2016.08.016" target="_blank" >10.1016/j.tca.2016.08.016</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Silica-coated poly(glycidyl methacrylate-ethylene dimethacrylate) beads containing organic phase change materials

Popis výsledku v původním jazyce

Macroporous sorbents differing in size were prepared by the 2,2ʹ-azobis(isobutyronitrile) (AIBN)-initiated suspension radical polymerization of glycidyl methacrylate and ethylene dimethacrylate in the presence of an inert porogen. The microspheres were loaded with paraffin and cetyl alcohol phase change materials (PCMs) and coated with silica by sol-gel method using trimethoxy(methyl)silane hydrolysate. The energy storing capacity of the PCM-containing composite particles was monitored by differential scanning calorimetry. Accelerated thermal cycling tests were carried out to determine the thermal reliability of the microencapsulated PCMs. Paraffin and cetyl alcohol content in the microcapsules was 42.9 wt.% and 48.9 wt.%, respectively. The microcomposites with higher PCM content showed correspondingly higher latent heat storage capacity (melting and solidification enthalpies were 96.1 J/g and 94.5 J/g, respectively). However, there was low enthalpy change observed after 1000 thermal cycles of cetyl alcohol-containing capsules, which indicated that PCM leakage from the microspheres was minimal.

Název v anglickém jazyce

Silica-coated poly(glycidyl methacrylate-ethylene dimethacrylate) beads containing organic phase change materials

Popis výsledku anglicky

Macroporous sorbents differing in size were prepared by the 2,2ʹ-azobis(isobutyronitrile) (AIBN)-initiated suspension radical polymerization of glycidyl methacrylate and ethylene dimethacrylate in the presence of an inert porogen. The microspheres were loaded with paraffin and cetyl alcohol phase change materials (PCMs) and coated with silica by sol-gel method using trimethoxy(methyl)silane hydrolysate. The energy storing capacity of the PCM-containing composite particles was monitored by differential scanning calorimetry. Accelerated thermal cycling tests were carried out to determine the thermal reliability of the microencapsulated PCMs. Paraffin and cetyl alcohol content in the microcapsules was 42.9 wt.% and 48.9 wt.%, respectively. The microcomposites with higher PCM content showed correspondingly higher latent heat storage capacity (melting and solidification enthalpies were 96.1 J/g and 94.5 J/g, respectively). However, there was low enthalpy change observed after 1000 thermal cycles of cetyl alcohol-containing capsules, which indicated that PCM leakage from the microspheres was minimal.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Thermochimica Acta

ISSN

0040-6031

e-ISSN

—

Svazek periodika

641

Číslo periodika v rámci svazku

10 October

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

24-28

Kód UT WoS článku

000385606000004

EID výsledku v databázi Scopus

2-s2.0-84983490063