Controlling the kinetics of contact electrification with patterned surfaces

被引：0
|
作者：
Thomas III, Samuel W. [1 ]
Vella, Sarah J. [1 ]
Dickey, Michael D. [1 ]
Kaufman, George K. [1 ]
Whitesides, George M. [1 ]
机构：
[1] Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, United States
来源：
Journal of the American Chemical Society | 2009年 / 131卷 / 25期
关键词：
(Figure Presented) This communication describes a new approach for controlling static charging (contact electrification); and resulting electrical discharging; that occurs when two contacting materials separate. The prevention of contact electrification is an important problem; unwanted adhesion between oppositely charged materials; spark-initiated explosions; and damage to microelectronic circuitry are some of the deleterious effects of static charging. Current strategies for controlling contact electrification rely upon dissipating an accumulated charge by making contacting surfaces conductive and; therefore; can be difficult to implement with electrically insulating materials. Specifically; using our understanding of the ion-transfer mechanism of contact electrification; we patterned glass slides with negatively charging areas (clean glass) and positively charging areas (glass silanized with a cationic siloxane terminated with a quaternary ammonium group). The rate of charge separation due to a steel sphere rolling on the patterned glass surface correlated linearly with the percentage of the glass surface that was silanized; the rate of charge transfer was minimal when 50% of the glass surface area was silanized. Patterned surfaces also prevented electrical discharges between electrically conducting (bare steel) or insulating (acrylate-coated steel) spheres rolling on the glass; because the rate of charging was sufficiently slow to prevent electric fields greater than the dielectric strength of air to develop. This strategy for preventing static charging therefore does not require one of the two contacting surfaces to be electrically conductive. More generally; these results show that our enhanced understanding of the ion-transfer mechanism of contact electrification enables the rational design of chemically tailored surfaces for functional electrets. Copyright © 2009 American Chemical Society;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
页码：8746 / 8747
相关论文
共 50 条
  • [21] Flow of thin films on patterned surfaces: Controlling the instability
    Kondic, L
    Diez, J
    PHYSICAL REVIEW E, 2002, 65 (04):
  • [22] Evolution of surfaces and mechanisms of contact electrification between metals and polymers
    Wang, Lin-Feng
    Dong, Yi
    Hu, Min-Hao
    Tao, Jing
    Li, Jin
    Dai, Zhen-Dong
    CHINESE PHYSICS B, 2022, 31 (06)
  • [23] Contact electrification between randomly rough surfaces with identical materials
    Feshanjerdi, M.
    Malekan, A.
    JOURNAL OF APPLIED PHYSICS, 2019, 125 (16)
  • [24] Charge density on fracture surfaces and contact electrification of identical materials
    Kadono, Toshihiko
    Ogawa, Kazunori
    Shirai, Kei
    Kobayashi, Hideyuki
    PHYSICAL REVIEW E, 2025, 111 (01)
  • [25] Evolution of surfaces and mechanisms of contact electrification between metals and polymers
    王林锋
    董义
    胡旻昊
    陶静
    李进
    戴振东
    Chinese Physics B, 2022, (06) : 661 - 668
  • [26] Nematic liquid crystal in contact with periodically patterned surfaces
    Kondrat, S
    Poniewierski, A
    Harnau, L
    LIQUID CRYSTALS, 2005, 32 (01) : 95 - 105
  • [27] Advancing and receding contact lines on patterned structured surfaces
    Duursma, G. R.
    Sefiane, K.
    David, S.
    CHEMICAL ENGINEERING RESEARCH & DESIGN, 2010, 88 (5-6A): : 737 - 743
  • [28] Smooth polymers charge negatively: Controlling contact electrification polarity in polymers
    Verners, Osvalds
    Lapcinskis, Linards
    Germane, Liva
    Kasikov, Aarne
    Timusk, Martin
    Pudzs, Kaspars
    V. Ellis, Amanda
    Sherrell, Peter C.
    Sutka, Andris
    NANO ENERGY, 2022, 104
  • [29] Contact Electrification as an Emerging Strategy for Controlling the Performance of Metal Nanoparticle Catalysts
    Yang, Ling
    Grzeschik, Roland
    Schluecker, Sebastian
    Xie, Wei
    CHEMISTRY-A EUROPEAN JOURNAL, 2024, 30 (50)
  • [30] Controlling mammalian cell interactions on patterned polyelectrolyte multilayer surfaces
    Berg, MC
    Yang, SY
    Hammond, PT
    Rubner, MF
    LANGMUIR, 2004, 20 (04) : 1362 - 1368
12345