Annealing effects on molecular structures and physical properties of side-by-side conjugate fibers

Title
Annealing effects on molecular structures and physical properties of side-by-side conjugate fibers
Author(s)
오태환한성수류원석길명섭[길명섭]
Keywords
POLY(TRIMETHYLENE TEREPHTHALATE); SPEED; POLY(ETHYLENE-TEREPHTHALATE); IR
Issue Date
201111
Publisher
SAGE PUBLICATIONS LTD
Citation
TEXTILE RESEARCH JOURNAL, v.81, no.19, pp.2065 - 2071
Abstract
Poly(trimethylene terephthalate) (PTT)/poly(ethylene terephthalate) (PET) side-by-side conjugate fibers were heat-treated to investigate the effects of annealing on structure development and physical properties. The effects of annealing temperature and time were observed. Even though the drawn conjugate fibers were sufficiently drawn, X-ray profiles showed that the molecular orientation was insufficient. After annealing for more than 1 hour at 180AC, PET and PTT crystal structures developed sufficiently. Crimp contraction decreased from 29% to 22.6% by annealing due to the development of the crystalline structure of the annealed PTT part. Decrease in a shrinkage difference between PET and PTT leads to a decrease in crimp contraction. Thermal shrinkage was also reduced from 11.0% to 1.8% by annealing.
URI
http://hdl.handle.net/YU.REPOSITORY/24319http://dx.doi.org/10.1177/0040517511416278
ISSN
0040-5175
Appears in Collections:
공과대학 > 화학공학부 > Articles
섬유패션학부 > 섬유패션학부 > Articles
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