Controllable large-scale processing of temperature regulating sheath-core fibers with high-enthalpy for thermal management

Ziye Chen; Zexu Hu; Shining Chen; Senlong Yu; Liping Zhu; Hengxue Xiang; Meifang Zhu

Nano Materials Science (Jun 2024)

Controllable large-scale processing of temperature regulating sheath-core fibers with high-enthalpy for thermal management

Ziye Chen,
Zexu Hu,
Shining Chen,
Senlong Yu,
Liping Zhu,
Hengxue Xiang,
Meifang Zhu

Affiliations

Ziye Chen: Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
Zexu Hu: Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China; College of Mechanical and Engineering, Donghua University, Shanghai, 201620, China; Corresponding author. Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China.
Shining Chen: Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
Senlong Yu: Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
Liping Zhu: Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
Hengxue Xiang: Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China; Corresponding author.
Meifang Zhu: Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China

Journal volume & issue: Vol. 6, no. 3
pp. 337 – 344

Abstract

Read online

Temperature regulating fibers (TRFs) with high enthalpy and high form stability are the key factors for thermal management. However, the enthalpies of most TRFs are not high, and the preparation methods are still at the laboratory scale. It remains a great challenge to use industrial spinning equipment to achieve continuous processing of TRFs with excellent thermal and mechanical properties. Here, polyamide 6 (PA6) based TRFs with a sheath-core structure were prepared by bicomponent melt-spinning. The sheath-core TRF (TRFsc) are composed of PA6 as sheath and functional PA6 as core, which are filled with the shape stable phase change materials (ssPCM), dendritic silica@polyethylene glycol (SiO2@PEG). With the aid of the sheath structure, the filling content of SiO2@PEG can reach 30 %, so that the enthalpy of the TRFs can be as high as 21.3 J/g. The ultra-high enthalpy guarantees the temperature regulation ability during the alternating process of cooling and heating. In hot environment, the temperature regulation time is 6.59 min, and the temperature difference is 12.93 °C. In addition, the mechanical strength of the prepared TRFsc reaches 2.26 cN/dtex, which can fully meet its application in the field of thermal management textiles and devices to manage the temperature regulation of the human body or precision equipment, etc.

Published in Nano Materials Science

ISSN: 2589-9651 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: https://www.keaipublishing.com/en/journals/nano-materials-science/

About the journal

Abstract

Keywords