Flexible polyethylene glycol/polyvinylpyrrolidone composite phase change fibres: Preparation, characterization, and thermal conductivity enhancement

被引：39

作者：

Zhang, Wuri ^{[1
]}

Zhang, Xiaoguang ^{[2
]}

Xu, Youguo ^{[1
]}

Xu, Yunfei ^{[1
]}

Qiao, Jiaxin ^{[1
]}

Shi, Tengteng ^{[1
]}

Huang, Zhaohui ^{[1
]}

Liu, Yan'gai ^{[1
]}

Fang, Minghao ^{[1
]}

Min, Xin ^{[1
]}

Wu, Xiaowen ^{[1
]}

机构：

[1] China Univ Geosci, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Sch Mat Sci & Technol, Natl Lab Mineral Mat, Beijing 100083, Peoples R China

[2] Peking Univ, Beijing Innovat Ctr Engn Sci & Adv Technol, Beijing Key Lab Magnetoelect Mat & Devices, Dept Mat Sci & Engn,Coll Engn, Beijing 100871, Peoples R China

来源：

POLYMER | 2021年 / 214卷

基金：

中国国家自然科学基金;

关键词：

Polyvinylpyrrolidone; Centrifugal spinning; Composite phase change fibres; Carbon nanotubes; ENERGY STORAGE; STEARIC-ACID; GLYCOL; PERFORMANCE; FABRICATION; PCM;

D O I：

10.1016/j.polymer.2020.123258

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Currently, electrospinning technology is the most used spinning technology. However, electrospinning exhibits low production rate and safety hazards, which has led to the development of the novel centrifugal spinning technology to extrude phase change fibres from composite solutions. The flexible composite phase change fibres based on Polyethylene glycol (PEG) and Polyvinylpyrrolidone (PVP) were prepared by centrifugal spinning. Moreover, carbon nanotubes acted as thermally conductive fillers to enhance the thermal conductivity of flexible composite phase change fibres. The microstructures of the fibres were observed with a scanning electron microscope (SEM). Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to determine the thermal properties of the fibres. The results showed that the concentrations of PEG and PVP had different influences on the diameter and smoothness of fibres, and the energy storage effect increased with the increasing PEG content. In summary, flexible composite phase change fibres based on PEG and PVP have very good application prospects for thermal insulation.

引用

页数：6

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