Encapsulated fatty acids in an acrylic resin as shape-stabilized phase change materials for latent heat thermal energy storage

K. Kaygusuz; C. Alkan; A. Sari; O. Uzun

doi:10.1080/15567030701258212

Encapsulated fatty acids in an acrylic resin as shape-stabilized phase change materials for latent heat thermal energy storage

K. Kaygusuz^*, C. Alkan, A. Sari, O. Uzun

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

This article aims to prepare novel shape-stabilized phase change materials (PCMs) by encapsulating fatty acids (stearic acid [SA], palmitic acid [PA], and myristic acid [MA]) as a PCM in an acrylic resin (Eudragit E) as supporting material and to determine latent heat thermal energy storage (LHTES) properties. The maximum percentage of all fatty acids in the shape-stabilized PCMs was found to be 70 wt% in which no fatty acid seepage was observed as the blends were heated over the melting points of the fatty acids. The optic microscope (OM) investigation demonstrated that fatty acid domains were coated by Eudragit E. Fourier transform infrared (FT-IR) results revealed that the interactions between Eudragit E and fatty acids were only adequate for adhesion of Eudragit E on fatty acid domains. Single phase was observed for the blends by OM, and interactions between the components were investigated by FT-IR spectroscopy. The melting and freezing temperatures and latent heats of the shape-stabilized PCMs were measured by the differential scanning calorimetry (DSC) method. Based on the results, it was concluded that Eudragit E/MA, Eudragit E/PA, and Eudragit E/SA blends (30/70 wt%) have good utility potential for LHTES purposes in terms of their satisfying thermal properties and advantages of easy preparation in desired dimensions, direct usefulness function in LHTES systems, and cost effectiveness.

Original language	English
Pages (from-to)	1050-1059
Number of pages	10
Journal	Energy Sources, Part A: Recovery, Utilization and Environmental Effects
Volume	30
Issue number	11
DOIs	https://doi.org/10.1080/15567030701258212
State	Published - Jan 2008
Externally published	Yes

Bibliographical note

Funding Information:
The authors would like to acknowledge the financial support (Project No. 2003K120510) by the Turkish State Planning Organization.

Keywords

Differential scanning calorimetry (DSC)
Eudragit E
FT-IR
Fatty acids
Thermal properties

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Nuclear Energy and Engineering
Fuel Technology
Energy Engineering and Power Technology

Access to Document

10.1080/15567030701258212

Cite this

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title = "Encapsulated fatty acids in an acrylic resin as shape-stabilized phase change materials for latent heat thermal energy storage",

abstract = "This article aims to prepare novel shape-stabilized phase change materials (PCMs) by encapsulating fatty acids (stearic acid [SA], palmitic acid [PA], and myristic acid [MA]) as a PCM in an acrylic resin (Eudragit E) as supporting material and to determine latent heat thermal energy storage (LHTES) properties. The maximum percentage of all fatty acids in the shape-stabilized PCMs was found to be 70 wt\% in which no fatty acid seepage was observed as the blends were heated over the melting points of the fatty acids. The optic microscope (OM) investigation demonstrated that fatty acid domains were coated by Eudragit E. Fourier transform infrared (FT-IR) results revealed that the interactions between Eudragit E and fatty acids were only adequate for adhesion of Eudragit E on fatty acid domains. Single phase was observed for the blends by OM, and interactions between the components were investigated by FT-IR spectroscopy. The melting and freezing temperatures and latent heats of the shape-stabilized PCMs were measured by the differential scanning calorimetry (DSC) method. Based on the results, it was concluded that Eudragit E/MA, Eudragit E/PA, and Eudragit E/SA blends (30/70 wt\%) have good utility potential for LHTES purposes in terms of their satisfying thermal properties and advantages of easy preparation in desired dimensions, direct usefulness function in LHTES systems, and cost effectiveness.",

keywords = "Differential scanning calorimetry (DSC), Eudragit E, FT-IR, Fatty acids, Thermal properties",

author = "K. Kaygusuz and C. Alkan and A. Sari and O. Uzun",

note = "Funding Information: The authors would like to acknowledge the financial support (Project No. 2003K120510) by the Turkish State Planning Organization.",

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number = "11",

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T1 - Encapsulated fatty acids in an acrylic resin as shape-stabilized phase change materials for latent heat thermal energy storage

AU - Kaygusuz, K.

AU - Alkan, C.

AU - Sari, A.

AU - Uzun, O.

N1 - Funding Information: The authors would like to acknowledge the financial support (Project No. 2003K120510) by the Turkish State Planning Organization.

PY - 2008/1

Y1 - 2008/1

N2 - This article aims to prepare novel shape-stabilized phase change materials (PCMs) by encapsulating fatty acids (stearic acid [SA], palmitic acid [PA], and myristic acid [MA]) as a PCM in an acrylic resin (Eudragit E) as supporting material and to determine latent heat thermal energy storage (LHTES) properties. The maximum percentage of all fatty acids in the shape-stabilized PCMs was found to be 70 wt% in which no fatty acid seepage was observed as the blends were heated over the melting points of the fatty acids. The optic microscope (OM) investigation demonstrated that fatty acid domains were coated by Eudragit E. Fourier transform infrared (FT-IR) results revealed that the interactions between Eudragit E and fatty acids were only adequate for adhesion of Eudragit E on fatty acid domains. Single phase was observed for the blends by OM, and interactions between the components were investigated by FT-IR spectroscopy. The melting and freezing temperatures and latent heats of the shape-stabilized PCMs were measured by the differential scanning calorimetry (DSC) method. Based on the results, it was concluded that Eudragit E/MA, Eudragit E/PA, and Eudragit E/SA blends (30/70 wt%) have good utility potential for LHTES purposes in terms of their satisfying thermal properties and advantages of easy preparation in desired dimensions, direct usefulness function in LHTES systems, and cost effectiveness.

AB - This article aims to prepare novel shape-stabilized phase change materials (PCMs) by encapsulating fatty acids (stearic acid [SA], palmitic acid [PA], and myristic acid [MA]) as a PCM in an acrylic resin (Eudragit E) as supporting material and to determine latent heat thermal energy storage (LHTES) properties. The maximum percentage of all fatty acids in the shape-stabilized PCMs was found to be 70 wt% in which no fatty acid seepage was observed as the blends were heated over the melting points of the fatty acids. The optic microscope (OM) investigation demonstrated that fatty acid domains were coated by Eudragit E. Fourier transform infrared (FT-IR) results revealed that the interactions between Eudragit E and fatty acids were only adequate for adhesion of Eudragit E on fatty acid domains. Single phase was observed for the blends by OM, and interactions between the components were investigated by FT-IR spectroscopy. The melting and freezing temperatures and latent heats of the shape-stabilized PCMs were measured by the differential scanning calorimetry (DSC) method. Based on the results, it was concluded that Eudragit E/MA, Eudragit E/PA, and Eudragit E/SA blends (30/70 wt%) have good utility potential for LHTES purposes in terms of their satisfying thermal properties and advantages of easy preparation in desired dimensions, direct usefulness function in LHTES systems, and cost effectiveness.

KW - Differential scanning calorimetry (DSC)

KW - Eudragit E

KW - FT-IR

KW - Fatty acids

KW - Thermal properties

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DO - 10.1080/15567030701258212

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JO - Energy Sources, Part A: Recovery, Utilization and Environmental Effects

JF - Energy Sources, Part A: Recovery, Utilization and Environmental Effects

IS - 11

ER -

Encapsulated fatty acids in an acrylic resin as shape-stabilized phase change materials for latent heat thermal energy storage

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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