비의류제품

electrostatic spraying with conductive liquids: thin, uniform polymer coatings can be applied in a water base normally impossible to charge. ntis tech note

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 544
this citation summarizes a one-page announcement of technology available for utilization. an electrostatic sprayer has been modified so that it can apply coating suspended or dissolved in electrically conductive liquids. the sprayer was developed to apply a water-base polyurethane coating to a woven, shaped polyester fabric. the coating provides a pressure seal for the fabric, which is part of a spacesuit. the sprayer may also be useful for applying waterproof, decorative, or protective coatings to fabrics for use on earth ordinarily, such a sprayer cannot handle water or other conductive liquids because the tip of the nozzle electrode tends to short-circuit; it cannot then impact a charge to the particles in the atomized liquid. in the modified sprayer, the nozzle and gun are constructed of nonconductive molded plastic. the liquid passageway is made long enough that electrical leakage through it is low. the coaxial hose for the liquid is built of a polytetrafluoroethylene tube, an insulating sleeve, and a polyurethane jacket