Alginate-Sodium Sulfate Decahydrate Phase Change Composite with Extended Stability

被引：12

作者：

Meng, Lingyao ^{[1
]}

Ivanov, Alexander S. ^{[1
]}

Kim, Sungjin ^{[1
]}

Zhao, Xiao ^{[1
]}

Kumar, Navin ^{[2
,3
]}

Young-Gonzales, Amanda ^{[4
]}

Saito, Tomonori ^{[1
]}

Bras, Wim ^{[1
]}

Gluesenkamp, Kyle ^{[2
]}

Bocharova, Vera ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37830 USA

[2] Oak Ridge Natl Lab, Bldg & Transportat Sci Div, Oak Ridge, TN 37830 USA

[3] Gas Technol Inst, Energy Efficiency, Des Plaines, IL 60018 USA

[4] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

来源：

ACS APPLIED POLYMER MATERIALS | 2022年 / 4卷 / 09期

关键词：

polymeric phase change composites; sodium sulfate decahydrate; sodium alginate; thermal energy storage; 3D printing; THERMAL-ENERGY STORAGE; LATENT-HEAT; SALT; CRYSTALLIZATION; CONDUCTIVITY;

D O I：

10.1021/acsapm.2c00933

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study reports on the use of sodium alginate to effectively stabilize sodium sulfate decahydrate (Na(2)SO(4)middot10H(2)O, SSD) based phase change material (PCM) for application as a thermal energy storage material. Alginate/SSD composite PCMs were prepared by blending SSD with different concentrations of alginate polymer. The resulting composite PCMs demonstrate high phase change enthalpy similar to 160 J/g and extended cycling stability compared to existing PCM composites. The analysis carried out by optical microscopy, X-ray scattering, and periodic density functional theory (DFT) calculations demonstrated that the stabilization effect was caused by the interplay between ionic and hydrogen bond interactions between the alginate and SSD. Additionally, the variation in mechanical properties of PCM composites with polymer concentrations made it possible to formulate a composite that maintains stable performance after 3D printing. The advanced properties make this composite a promising candidate for application as a thermal energy storage material.

引用

页码：6563 / 6571

页数：9

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