Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (09): 46-51.doi: 10.13475/j.fzxb.20210305607

• Fiber Materials • Previous Articles     Next Articles

Preparation of MoS2/polyurethane composite fibrous membranes and their photothermal conversion properties

CAO Yuanming, ZHENG Mi, LI Yifei, ZHAI Wangyi, LI Liyan, CHANG Zhuningzi, ZHENG Min()   

  1. College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215123, China
  • Received:2021-03-15 Revised:2021-06-16 Online:2021-09-15 Published:2021-09-27
  • Contact: ZHENG Min E-mail:zhengmin@suda.edu.cn

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Abstract:

To prepare textile materials with high photothermal conversion efficiency, three-dimensional MoS2 nanoparticles with strong near-infrared absorption capacity were prepared by hydrothermal synthesis. MoS2 nanoparticles were added to polyurethane (PU) spinning solution, and MoS2/PU composite photothermal fibrous membranes was prepared by electrospinning. The structure and properties of MoS2 nanoparticles and MoS2/PU composite fibrous membranes were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffractometer powder diffraction and fourier transform infrared spectrometer. The results show that after 0.8 W/cm2 near-infrared light irradiation for 1 min, the temperature of MoS2/PU composite fibrous membranes rises by 10.48 ℃, and the photothermal conversion efficiency was increased up to 31.07%. After a long time of repeated temperature rises and falls, the thermal effect did not decay. At the same time, the temperature rose 31% higher than the black PU fibrous membranes under the sunlight irradiation for 5 min. After high temperature treatment and immersion in simulated sweat for 24 hours, the composite fiber membrane still maintain its original strength. In summary, the MoS2/PU composite fibrous membranes have excellent photothermal properties. It can effectively convert light energy into heat energy, and maintain excellent structural stability.

Key words: functional material, photothermal conversion, near-infrared radiation, electrospinning, MoS2/polyurethane composite fibrous membrane

CLC Number: 

  • TS102.5

Fig.1

XRD pattern of MoS2 nanoparticles"

Fig.2

Micromorphology of MoS2 (a) and MoS2/PU composite fibrous membranes (b)"

Fig.3

FT-IR of MoS2, PU and MoS2/PU composite fibrous membranes"

Fig.4

Temperature changes of MoS2 aqueous dispersion under near infrared"

Fig.5

UV-vis spectrum of MoS2 aqueous dispersion and MoS2/PU composite fibrous membranes"

Fig.6

Temperature changes of MoS2/PU composite fibrous membranes under different near infrared illumination time (a) and fixed illumination time (b)"

Fig.7

Temperature changes of MoS2/PU composite fibrous membranes under natural sunlight"

Fig.8

Stress-strain curves of MoS2/PU composite fibrous membranes under natural sunlight"

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