

FOLLOWUS
Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science & Engineering, Southwest Jiaotong University, Chengdu 610031, China
qxdjianhu@163.com (X.D.Q.)
yongwang1976@swjtu.edu.cn (Y.W.)
Received:19 February 2022,
Revised:2022-4-13,
Accepted:21 April 2022,
Online First:12 July 2022,
Published:01 November 2022
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Gao, M. H.; Feng, W.; Qi, X. D.; Wang, Y. Multistimuli responsive and thermoregulated capability of coaxial electrospun membranes with core-sheath structure and functional polypyrrole layer. Chinese J. Polym. Sci. 2022, 40, 1380–1388
Meng-Hang Gao, Wen Feng, Xiao-Dong Qi, et al. Multistimuli Responsive and Thermoregulated Capability of Coaxial Electrospun Membranes with Core-sheath Structure and Functional Polypyrrole Layer[J]. Chinese Journal of Polymer Science, 2022, 40(11): 1380-1388.
Gao, M. H.; Feng, W.; Qi, X. D.; Wang, Y. Multistimuli responsive and thermoregulated capability of coaxial electrospun membranes with core-sheath structure and functional polypyrrole layer. Chinese J. Polym. Sci. 2022, 40, 1380–1388 DOI: 10.1007/s10118-022-2773-6.
Meng-Hang Gao, Wen Feng, Xiao-Dong Qi, et al. Multistimuli Responsive and Thermoregulated Capability of Coaxial Electrospun Membranes with Core-sheath Structure and Functional Polypyrrole Layer[J]. Chinese Journal of Polymer Science, 2022, 40(11): 1380-1388. DOI: 10.1007/s10118-022-2773-6.
The layer of PPy has been uniformly deposited onto the PU@PEG coaxial electrospun membranes by electrochemical polymerization. Benefit from the outstanding light absorption and electrical conductivity of PPy
the PU@PEG-PPy membranes have good mechanical properties and respond quickly to sunlight or electric stimuli
displaying great application prospects in thermal management.
Developing thermal management fabrics with good energy storage and multistimuli responsive properties is important for regulating the body temperature in complex environment. Herein
the intelligent nonwoven membranes were fabricated
via
a coaxial electrospinning method
resulting in a core-sheath structure with poly(ethylene glycol) (PEG) as core and polyurethane (PU) as sheath. Additionally
polypyrrole (PPy) with good light absorption ability and electrical conductivity was deposited onto the surface of the PU@PEG electrospun fibers
via
electrochemical polymerization. The PPy layer enabled the membranes to respond quickly to sunlight and electrical stimuli. The membranes could heat up to 86 °C under simulated sunlight within 200 s or produce remarkable electrothermal effect under a low voltage input of only 1 V
exhibiting efficient energy conversion and storage performances. The photothermal and electrothermal conversion effect could be easily adjusted by controlling the polymerization time of PPy. Therefore
the multifunctional membranes with high latent heat
good mechanical properties as well as excellent photothermal/electrothermal conversion ability are promising in personal thermal management applications.
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