Yan Shan, Dong Keyi, Lu Jianwei, Song Wei, Xiao Ru
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.
Nanoscale. 2020 Feb 20;12(7):4527-4536. doi: 10.1039/c9nr09925e.
It is necessary to construct an amphiphobic triboelectric nanogenerator (TENG) since water, oil and other antistatic agents will have a great impact on its electrical output performance during practical applications. Herein, we put forward a high-performance TENG based on silica enhanced thermoplastic polymeric nanofiber membranes that possess outstanding droplet-repellency after being modified with fluorine-containing polymers. With in situ polycondensation of SiO2 nanoparticles on the surface of the raw materials of garment-thermoplastic nanofiber membranes fabricated by the melt-blending extrusion method, the electrical output performance of the prepared TENGs enhanced a lot, corresponding to an excellent peak power density of 2.14 W m-2 that was enough to supply several green LEDs. For improving its ability to resist moisture and antistatic agents existing in daily life, FAS/PTFE was dip-coated on the above modified membranes to achieve remarkable amphiphobicity that gave it another ability for self-cleaning. Considering the good stability of amphiphobicity and the excellent compatibility between the thermoplastic polymeric nanofiber membranes and garment, the developed TENG is believed to be the most suitable candidate for powering wearable electronics in the near future.
由于在实际应用中，水、油和其他抗静电剂会对其电输出性能产生重大影响，因此有必要构建一种两性疏液摩擦纳米发电机（TENG）。在此，我们提出了一种基于二氧化硅增强热塑性聚合物纳米纤维膜的高性能TENG，该膜在用含氟聚合物改性后具有出色的拒液滴性能。通过在采用熔喷挤出法制备的服装用热塑性纳米纤维膜原料表面原位缩聚二氧化硅纳米颗粒，所制备的TENG的电输出性能得到了很大提高，相应的峰值功率密度高达2.14 W m-2，足以点亮几个绿色发光二极管。为了提高其抵抗日常生活中存在的湿气和抗静电剂的能力，将FAS/PTFE浸涂在上述改性膜上，以实现显著的两性疏液性，从而赋予其自清洁能力。考虑到两性疏液性的良好稳定性以及热塑性聚合物纳米纤维膜与服装之间的优异相容性，预计所开发的TENG在不久的将来将成为为可穿戴电子产品供电的最合适候选者。
