부직포

Characterizing Lateral Contraction Behavior of Spunbonded Nonwovens During Uniaxial Tensile Deformation.

  • 출판일1996.10
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 328
Researchers investigated an experimental method based on video recording and image analysis to characterize the lateral contraction of spunbonded nonwoven fabrics during uniaxial tensile deformation. A digital clock recorded the time signatures during the experimental procedure. The time signatures corresponded to 5, 10, 20, 30, 40, 50, and 60 seconds. The test used a constant strain rate of 40 percent per minute. Results indicated that beyond a limiting gage length of 15 centimeters, the lateral deformation at the center of the specimen was independent of the gage length. With decreasing width, however, edge effects became significant, and led to an overestimation of percent lateral contraction. 20 refs.
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