Core-Sheath Paraffin-Wax-Loaded Nanofibers by Electrospinning for Heat Storage

被引：85

作者：

Lu, Yuan ^{[1
,2
,3
,4
]}

Xiao, Xiudi ^{[1
,2
,3
]}

Zhan, Yongjun ^{[1
,2
,3
]}

Huan, Changmeng ^{[1
,2
,3
,4
]}

Qi, Shuai ^{[1
,2
,3
,5
]}

Cheng, Haoliang ^{[1
,2
,3
]}

Xu, Gang ^{[1
,2
,3
,6
]}

机构：

[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China

[2] Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China

[3] Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[5] Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China

[6] Tibet New Energy Res & Demonstrat Ctr, Lhasa 850000, Tibet, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2018年 / 10卷 / 15期

基金：

中国国家自然科学基金;

关键词：

phase change material; paraffin wax; electrospinning; core-sheath; heat storage; THERMAL-ENERGY STORAGE; PHASE-CHANGE MATERIALS; CARBON NANOTUBES; CONDUCTIVITY ENHANCEMENT; ULTRAFINE FIBERS; SHELL; ENCAPSULATION; PERFORMANCE; FABRICATION; COMPOSITES;

D O I：

10.1021/acsami.8b02057

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Paraffin wax (PW) is widely used for smart thermoregulation materials due to its good thermal performance. However, the leakage and low thermal conductivity of PW hinder its application in the heat storage field. Accordingly, developing effective methods to address these issues is of great importance. In this study, we explored a facile approach to obtain PW-loaded core-sheath structured flexible nanofibers films via coaxial electrospinning technique. The PW as the core layer was successfully encapsulated by the sheath-layer poly (methyl methacrylate). The diameter of the fiber core increased from 395 to 848 run as the core solution speed rate increased from 0.1 to 0.5 mL/h. In addition, it can be seen that higher core solution speed rate could lead to higher PW encapsulation efficiency according to the transmission electron microscopy results. The core-sheath nanofiber films, moreover, possessed the highest latent heat of 58.25 J/g and solidifying enthalpy of -56.49 J/g. In addition, we found that after 200 thermal cycles, there was little change in latent heat, which demonstrated that it is beneficial for the PW-loaded core-sheath structure to overcome the leakage issue and enhance thermal stability properties for the thermoregulation film.

引用

页码：12759 / 12767

页数：9