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Characterization of Reinforcing Web Structures in Needle Punched Nonwoven Composites

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Authors
KANG, TAE JIN; LEE, SUNG HO
Issue Date
1999-11
Publisher
SAGE Publications
Citation
Journal of Composite Materials, 33:2116-2132
Abstract
The structural parameters of needle punched nonwoven composites have been examined using image analysis system. Fourteen plies of carded webs of E Glass fiber were stacked and needle punched at different punching densities of 15,30,45,60, and 90 penetrations per square centimeter. The needle punched webs were formed into composites with unsaturated polyester resin. The structural parameters examined include the fiber orientation distribution as well as the length changes during the punching process. The mean fiber length was substantially decreased up to 30% with increasing punching densities and the fibers were more randomly distributed at the high punching densities. The fiber orientation factor of the nonwoven composite was decreased with punching densities, which means more random distribution of fibers at higher punching densities.
ISSN
0021-9983
Language
English
URI
https://hdl.handle.net/10371/11836
DOI
https://doi.org/10.1177/002199839903302203
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Material Science and Engineering (재료공학부) Journal Papers (저널논문_재료공학부)
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