부직포

Measurements of (and Explanations for) Changes in Permeabilities of Nonwoven Materials.

  • 출판일1996.10
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 340
The resistance to fluid passage of a porous barrier, such as a fibrous sheet, can be a critical performance property for many end use applications. In addition, measurement of the resistance at multiple locations can serve as a quality control monitor for evaluating product uniformity. Because permeability is not a constant property, any evaluation carried out at only a single driving pressure can produce misleading comparisons. Conventional test instruments for measuring air or liquid forced flow through porous sheets do not generally have the potential for covering a wide range of flow rates or applied pressures. The TRI/ART air flow resistance tester can supply flow rate versus applied pressure data covering a wide range, usually in less than 1 minute, without any adjustments or changes in specimen mounting.
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