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http://dx.doi.org/10.12772/TSE.2022.59.055

Changes in the Physical Properties of PET Nonwovens Using Sheath-Core-type LM PET as a Binder Based on Manufacturing Conditions  

Lee, Jae Min (Department of Organic Materials Engineering, Chungnam National University)
Kim, Dong Eun (Department of Organic Materials Engineering, Chungnam National University)
Choi, Ji Beom (Department of Organic Materials Engineering, Chungnam National University)
Heo, Jeong Woo (Department of Organic Materials Engineering, Chungnam National University)
Kwon, MiYeon (Material & Component Convergence R&D Department, Korea Institute of Industrial Technology)
Lee, Seung Goo (Department of Organic Materials Engineering, Chungnam National University)
Publication Information
Textile Science and Engineering / v.59, no.1, 2022 , pp. 55-62 More about this Journal
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.
Keywords
thermal bonding; polyester; nonwoven; sheath-core; hot melt;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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