Preparation and phase change performance of Na2HPO4·12H2O@poly (lactic acid) capsules for thermal energy storage

Na Fan; Lang Chen; Guoyong Xie; Donghong Yin; Chak-Tong Au; Shuangfeng Yin

doi:10.1016/j.cjche.2018.05.017

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Preparation and phase change performance of Na₂HPO₄·12H₂O@poly (lactic acid) capsules for thermal energy storage

Materials and Product Engineering | Updated：2026-01-06

- Preparation and phase change performance of Na₂HPO₄·12H₂O@poly (lactic acid) capsules for thermal energy storage
- Chinese Journal of Chemical Engineering Vol. 27, Issue 3, Pages: 695-700(2019)
- Affiliations：
  
  1. 2 Hunan Tobacco Industry Co., Ltd.,Changsha,China,410019
  2. 3 College of Chemistry and Chemical Engineering, Hunan Institute of Engineering,Xiangtan,China,411104
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.05.017
  CLC：
- Published：2019
- Accepted：
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DOI：

HPO DOI： 10.1016/j.cjche.2018.05.017.

摘要

Abstract

Micro-encapsulated phase-change materials (microPCMs) with Na

HPO

·12H

O encapsulated in poly(lactic acid) (PLA) shell were prepared by a solvent evaporation-precipitation method that involves the use of a coaxial needle. The effects of PLA concentration

stirring speed

injection rate of core and shell solutions

and polyvinyl alcohol (PVA) concentration on phase change properties were investigated. The thermal properties of microPCMs were characterized by differential scanning calorimetry (DSC). The capsules prepared under the optimal conditions are about 2 mm in diameter and show a latent heat of up to 122.2 J·g

-1

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