Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Structure and Physical Properties of PET Tire Cord Fibers Prepared with Drawing Conditions

타이어 코드용 PET 섬유의 연신 조건에 따른 구조와 물성

  • Kwon, Ji-Kwang (Department of Organic Material Science and Engineering, Pusan National University) ;
  • Hwang, Sung-Ho (Department of Organic Material Science and Engineering, Pusan National University) ;
  • Ju, Si-Hwan (Hyosung R&D Business Lab. Production R&D Center) ;
  • Park, Jin-Kyung (Hyosung R&D Business Lab. Production R&D Center) ;
  • Cho, Hyun-Hok (Department of Organic Material Science and Engineering, Pusan National University)
  • 권지광 (부산대학교 유기소재시스템공학과) ;
  • 황성호 (부산대학교 유기소재시스템공학과) ;
  • 주시환 ((주)효성 기술원 생산기술연구소) ;
  • 박진경 ((주)효성 기술원 생산기술연구소) ;
  • 조현혹 (부산대학교 유기소재시스템공학과)
  • Received : 2009.10.22
  • Accepted : 2009.12.10
  • Published : 2009.12.31
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Abstract

The effect of drawing ratio and drawing temperature on the structure and physical properties of PET tire cord filaments were investigated using wide-angle X-ray diffraction, density, quantity of meso-phase, tensile test and birefringence. PET tire cord filaments were drawn at 80, 90, and $100^{\circ}C$. WAXD equatorial profile results had shown that the reflection observed at $2\theta=17.4^{\circ}$ and $25.9^{\circ}$ are assigned to the (010) and (100) reflections, and the reflection peak was sharper at higher drawing temperature and ratio. The density increased as drawing temperature and drawing ratio increased. The amount of three phases in the filament; crystalline phase, oriented meso-phase and amorphous, was estimated through the X-ray intensity separation procedure. The amount of meso-phase estimated from X-ray peak using a Lorenzian peak width analysis program. It had been shown that the degree of meso-phase increased as drawing temperature decreased at above glass transition temperature. And the degree of meso-phase increased as drawing ratio increased. It tended to samples were drawn to ratio 7, most degree of meso-phase sample had higher tensile strength than others. The tensile strength and birefringence increased as the degree of meso-phase increased.

Keywords

References

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