Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Changes in the Physical Properties of PET Nonwovens Using Sheath-Core-type LM PET as a Binder Based on Manufacturing Conditions

시스-코어형 LM PET를 바인더로 한 PET 부직포의 제조 조건에 따른 물성 변화 연구

  • 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)
  • 이재민 (충남대학교 유기재료공학과) ;
  • 김동은 (충남대학교 유기재료공학과) ;
  • 최지범 (충남대학교 유기재료공학과) ;
  • 허정우 (충남대학교 유기재료공학과) ;
  • 권미연 (한국생산기술연구원 소재부품융합연구부문) ;
  • 이승구 (충남대학교 유기재료공학과)
  • Received : 2022.02.05
  • Accepted : 2022.02.20
  • Published : 2022.02.28
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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

References

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