Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Synchrotron SAXS Analysis of Poly(trimethylene terephthalate), Poly(trimethylene naphthalate), and PTT/PTN (50/50) Blend Films

Poly(trimethylene terephthalate), Poly(trimethylene naphthalate) 및 PTT/PTN (50/50) 블렌드 필름의 방사광 SAXS 분석

  • Choi, Jae-Won (Department of Textile Engineering, Soongsil University and Intelligent Textile System Research Center, Seoul National University) ;
  • Lee, Han-Sup (Department of Textile Engineering, Inha University) ;
  • Kim, Young-Ho (Department of Textile Engineering, Soongsil University and Intelligent Textile System Research Center, Seoul National University)
  • 최재원 (숭실대학교 섬유공학과 및 서울대학교 지능형텍스타일시스템 연구센터) ;
  • 이한섭 (인하대학교 공과대학 섬유공학과) ;
  • 김영호 (숭실대학교 섬유공학과 및 서울대학교 지능형텍스타일시스템 연구센터)
  • Published : 2006.12.31
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Abstract

Poly(trimethylene terephthalate) (PTT)/poly(trimethylene naphthalate) (PTN) (50/50, weight ratio) blend films (T5N5) with amorphous state were prepared by melt-pressing of solution blended powders at $260^{\circ}C$ for various times and quenching them in liquid nitrogen. Homo PTT and PTN films were also prepared by the same method. Small angle X-ray scattering (SAXS) measurements during the heating process were carried out using synchrotron X-ray source to investigate the changes in microcrystalline structure of the PTT, PTN and T5N5 films. From the electron density correlation functions obtained from SAXS patterns, long period (L), lamella thickness ($I_c$), and amorphous layer thickness ($I_a$) were calculated. Long periods of the amorphous films began to increase at around crystallization temperature of the samples. The increase in both $I_c\;and\;I_a$ attributed to the increase of L.L of PTN film is larger than that of PTT. L of T5N5 exhibited values between those of PTT and PTN film and it increased with heat treatment time at $260^{\circ}C$.

Keywords

References

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