纺织学报 ›› 2021, Vol. 42 ›› Issue (09): 46-51.doi: 10.13475/j.fzxb.20210305607

• 纤维材料 • 上一篇    下一篇

二硫化钼/聚氨酯复合纤维膜的制备及其光热转换性能

曹元鸣, 郑蜜, 李一飞, 翟旺宜, 李丽艳, 常朱宁子, 郑敏()   

  1. 苏州大学 纺织与服装工程学院, 江苏 苏州 215123
  • 收稿日期:2021-03-15 修回日期:2021-06-16 出版日期:2021-09-15 发布日期:2021-09-27
  • 通讯作者: 郑敏
  • 作者简介:曹元鸣(1996—),男,硕士生。主要研究方向为纳米材料在纺织领域的应用。
  • 基金资助:
    国家创新人才博士后计划项目(BX20190228);江苏省产学研前瞻项目(L211500410)

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 Published:2021-09-15 Online:2021-09-27
  • Contact: ZHENG Min

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摘要：

为制备具有高光热转换效率的纺织材料,采用水热合成法制备了近红外吸收能力强的三维二硫化钼(MoS2)纳米颗粒,然后添加至聚氨酯(PU)纺丝液中,通过静电纺丝方法制备MoS2/PU复合光热纤维膜。借助扫描电子显微镜、透射电子显微镜、X射线粉末衍射仪、傅里叶变换红外光谱仪等对MoS2纳米颗粒及MoS2/PU复合纤维膜的结构和性能进行表征。结果表明:经功率密度为0.8 W/cm2的近红外光照射1 min后,MoS2/PU复合纤维膜的温度上升10.48 ℃,光热效率达到了31.07%,且经长时间反复升降温后热效应无衰减现象,同时在阳光下照射5 min后,复合纤维膜温度上升比黑色纯PU纤维膜高31%;经高温以及模拟汗液浸渍24 h后,复合纤维膜仍可保持原有强力;该MoS2/PU复合纤维膜可将光能有效地转换成热能,并具有较好的力学稳定性。

关键词: 功能材料, 光热转换, 近红外光照射, 静电纺丝, 二硫化钼/聚氨酯复合纤维膜

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

中图分类号: 

  • TS102.5

图1

MoS2纳米颗粒的XRD图谱"

图2

MoS2及MoS2/PU复合纤维膜的微观形貌照片"

图3

MoS2、PU和MoS2/PU复合纤维膜的红外光谱图"

图4

MoS2分散液在近红外光下温度随时间的变化"

图5

MoS2分散液及MoS2/PU复合纤维膜的紫外-可见光谱图"

图6

MoS2/PU复合纤维膜在不同红外光照时间及固定光照时间下的温度变化"

图7

MoS2/PU复合纤维膜在自然日光照射下的温度变化"

图8

MoS2/PU复合纤维膜的应力-应变曲线"

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