Changes in the Physical Properties of PET Nonwovens Using Sheath-Core-type LM PET as a Binder Based on Manufacturing Conditions
Vol. 59, No. 1, pp. 55-62,
Feb. 2022
10.12772/TSE.2022.59.055
PDF
Abstract
Numerous studies have been conducted on the use of nonwoven fabrics for a
variety of automotive parts. In particular, thermally bonded polyethylene terephthalate
(PET) nonwoven fabrics, prepared from PET staple fibers, are widely used because of their
excellent heat insulation, sound absorption ability, moldability, morphological stability, and
low weight and cost. In this study, thermally bonded PET nonwoven fabrics were prepared
by using sheath-core-type low melting point (LM PET) staple fibers as binders. These fabrics
are composed of a sheath (LM PET) and a core (regular PET), which allow the fabrication
of the PET-only nonwoven composites without the use of any additional binders.
During the heat treatment of the nonwoven fabrics, the sheath portion melts easily at a
certain processing temperature and serves as a binder for the nonwoven composites. Furthermore,
the effects of the manufacturing conditions, such as the processing temperature,
time, and pressure, on the physical properties of the PET nonwoven fibers were
investigated. The macroscopic morphology, fracture behavior, shore hardness, and
dynamic properties of the PET nonwoven fabrics were analyzed as a function of the manufacturing
conditions.
Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.
