Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Preparation and Characterization of PET Coating Yarns Filled with Inorganic Particle/Polyurethane by Twin-screw Melt Compounder

이축압출을 활용한 무기입자 폴리우레탄 용융혼련 PET 코팅사 제조 연구

  • Yu, Sung-Uk (Korea Dyeing & Finishing Technology Institute, Busan Textile Materials Promotion Center) ;
  • Lee, Gi-Bong (Korea Dyeing & Finishing Technology Institute, Busan Textile Materials Promotion Center) ;
  • Ahn, Ji-Hoon (Korea Dyeing & Finishing Technology Institute, Busan Textile Materials Promotion Center) ;
  • Choi, Joo-Hwan (Korea Dyeing & Finishing Technology Institute, Busan Textile Materials Promotion Center)
  • 유성욱 (DYETEC연구원 부산섬유소재진흥센터) ;
  • 이기봉 (DYETEC연구원 부산섬유소재진흥센터) ;
  • 안지훈 (DYETEC연구원 부산섬유소재진흥센터) ;
  • 최주환 (DYETEC연구원 부산섬유소재진흥센터)
  • Received : 2021.11.15
  • Accepted : 2021.12.14
  • Published : 2021.12.31
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Abstract

This study investigates the use of inorganic fillers (CaCO3, ZnO, ZrO2, and TiO2) with thermoplastic polyurethane (TPU) as polyethylene terephthalate (PET) coating yarns to improve their mechanical properties. TPU is the most widely used coating material for thermal melting because of its excellent mechanical properties, functionality, and processability. The mechanical properties (e.g., tensile strength and tensile strain) and thermal properties of prepared TPU compounds were investigated with different inorganic filler contents. TPU resin was melt-mixed using a twin-screw extruder for uniform mixing by filler type and inorganic particle concetration. The core PET yarns were melt-coated without thermal decomposition at approximately 200 ℃. The properties of the inorganic filler/TPU compound were analyzed by a universal testing machine, Fourier-transform infrared spectrometer, differential scanning calorimeter, and dynamic mechanical analysis. The dispersibility of inorganic fillers (ZnO and TiO2) in the TPUs was better than that of CaCO3 and ZrO2. The mechanical properties, thermal properties, and scanning electron microscopy images are ranked in the following order: TiO2 > ZnO > ZrO2 > CaCO3.

Keywords

Acknowledgement

본 연구는 2020년도 산업통상자원부 산업집적지경쟁력강화사업(RBS20002)의 연구비 지원을 받아 수행된 연구이며, 이에 감사드립니다.

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