Influence of the cross-sectional shape on the structure and properties of polyester fibers

Karaca E., Ozcelik F.

JOURNAL OF APPLIED POLYMER SCIENCE, vol.103, pp.2615-2621, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 103
  • Publication Date: 2007
  • Doi Number: 10.1002/app.25350
  • Journal Name: JOURNAL OF APPLIED POLYMER SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2615-2621
  • Keywords: crystallization, fibers, mechanical properties, polyesters, HOLLOW FIBERS
  • Bursa Uludag University Affiliated: Yes

Abstract

The effects of the fiber cross-sectional shape on the structure and properties of polyester fibers were investigated. Fully drawn yarn (FDY) polyester fibers (167 dtex and 48 filaments) were produced under the same spinning conditions used in a spinning plant. The only difference between the fibers was their cross-sectional shapes. Four different cross-sectional shapes were chosen for the experimental work: round, hollow-round, trilobal, and hollow-trilobal. The crystallinity and values of the maximum stress, maximum strain, modulus, yield stress, shrinkage in boiling water, and unevenness of the fibers were deter-mined. The difference in the cross-sectional shapes influenced the modulus, maximum strain, yield stress, and shrinkage in boiling water. No effects on the crystallinity and maximum stress were observed. The results suggested that the hollow fibers had higher amorphous orientation than the full fibers. The hollow-round fiber had the highest unevenness value. (c) 2006 Wiley Periodicals, Inc.