Effect of annealing on charging properties of electret fibers


Kılıç A. , Shim E., Pourdeyhimi B.

JOURNAL OF THE TEXTILE INSTITUTE, vol.108, no.6, pp.987-991, 2017 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 108 Issue: 6
  • Publication Date: 2017
  • Doi Number: 10.1080/00405000.2016.1207269
  • Title of Journal : JOURNAL OF THE TEXTILE INSTITUTE
  • Page Numbers: pp.987-991

Abstract

In the present work, effect of annealing on charging and surface morphology of isotactic polypropylene (PP) filaments was reported. To enhance the surface crystallinity of the filaments, samples were annealed at 70 and 110 degrees C for 12 h. As expected, fiber surface crystallinity increased upon annealing which led more stable electret fibers. However, the change in the initial surface potential was not so remarkable. The same trend was also observed in filaments containing a commercial nucleating agent, NA11 (sodium 2,2'-methylene-bis(4,6-di-tertbutylphenyl)-phosphate). Surface crystallinity was analyzed using the intensity of specific peaks obtained from attenuated total reflection infrared spectroscopy analysis. The surface charge characteristics of fibers were determined using a modified surface potential decay test.