مهندسی نساجی گیلان:. گیل تکس

سایت تخصصی نساجی و پوشاک

مهندسی نساجی گیلان:. گیل تکس

سایت تخصصی نساجی و پوشاک

Measurement of sound absorption coefficient of nonwoven fabrics

Measurement of sound absorption coefficient of nonwoven fabrics
 Fereshteh Shahani,Mohamad Zarebini
Abstract Nonwoven fabrics comprise a very significant proportion of total world textile output. This is due to their varied properties that have enabled these types of textiles to be used in wide range of applications. In application such as floor and wall covering or as automobile carpets; nonwoven fabrics not only must serve as carpets, but also must function as sound insulation materials. In this work the effect of fiber variables together with the influence of fabric production parameters on sound absorption properties of polypropylene needled floor covering having different surface effects have been investigated. An instrument to measure noise absorption coefficient (NAC) of the experimental samples has been designed and built. A commercial melt spinning line was used to manufacture staple polypropylene fibers of different fineness. A two swift carding machine together with a horizontal cross-lapper was employed to obtain the required batts of fibers.
Key words: Nonwoven, sound absorption, measurement of NAC


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مدیر سایت چهارشنبه 4 اردیبهشت‌ماه سال 1392 ساعت 04:20 ب.ظ
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