The Effect of Hydroxylated Multi-Walled Carbon Nanotubes on the Properties of Peg-Cacl 2 Form-Stable Phase Change Materials

Lingyu Zheng, Xuelai Zhang, Weisan Hua, Xinfeng Wu and Fa Mao
Additional contact information
Lingyu Zheng: Merchant Marine College 1, Shanghai Maritime University, Shanghai 200135, China
Xuelai Zhang: Merchant Marine College 1, Shanghai Maritime University, Shanghai 200135, China
Weisan Hua: Merchant Marine College 1, Shanghai Maritime University, Shanghai 200135, China
Xinfeng Wu: Merchant Marine College 1, Shanghai Maritime University, Shanghai 200135, China
Fa Mao: Merchant Marine College 1, Shanghai Maritime University, Shanghai 200135, China

Energies, 2021, vol. 14, issue 5, 1-17

Abstract: Calcium ions can react with polyethylene glycol (PEG) to form a form-stable phase change material, but the low thermal conductivity hinders its practical application. In this paper, hydroxylated multi-walled carbon nanotubes (MWCNTs) with different mass are introduced into PEG1500·CaCl 2 form-stable phase change material to prepare a new type of energy storage material. Carbon nanotubes increased the mean free path (MFP) of phonons and effectively reduced the interfacial thermal resistance between pure PEG and PEG1500·CaCl 2 3D skeleton structure. Thermal conductivity was significant improved after increasing MWCNTs mass, while the latent heat decreases. At 1.5 wt%, composite material shows the highest phase change temperature of 42 °C, and its thermal conductivity is 291.30% higher than pure PEG1500·CaCl 2 . This article can provide some suggestions for the preparation and application of high thermal conductivity form-stable phase change materials.

Keywords: MWCNTs; form-stable phase change materials; PEG; thermal conductivity (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/5/1403/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/5/1403/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:5:p:1403-:d:510105

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().