Alkaline Weight Reduction and Physical Properties of 0.01d Polyester Ultramicro Fiber

0.01d 폴리에스테르 초극세 섬유의 알칼리 감량과 물성

  • Park, Jae-Min (Department of Textile Engineering, Pusan National University) ;
  • Jeong, Dong-Seok (Department of Textile Engineering, Pusan National University) ;
  • Rho, Hwan-Kown (Fiber & Textile Research Institute, Kolon Central Research Park) ;
  • Lee, Mun-Cheul (Department of Textile Engineering, Pusan National University)
  • 박재민 (부산대학교 섬유공학과) ;
  • 정동석 (부산대학교 섬유공학과) ;
  • 노환권 ((주)코오롱 중앙기술원 Fiber 연구소) ;
  • 이문철 (부산대학교 섬유공학과)
  • Published : 2006.08.27

Abstract

Two kinds of sea-island type polyester ultramicro fibers (fiber fineness : 0.01 and 0.05 denier) were treated with NaOH varying time and concentration. Surface morphology of the treated fibers with alkaline weight loss was observed by SEM. The treated effects were investigated by measuring density, melting temperature, and X-ray diffraction patterns. The surface morphology of the polyester ultramicro fiber was changed by NaOH concentration. Weight loss of 0.01d fiber was much larger than that of 0.05d fiber. Density and crystallinity were increased with weight loss of fiber. After the weight loss had finished, the density and crystallinity were decreased because of attack of island partition of the fiber. A melting temperature$(T_m)$ is $250^{circ}$ at untreated fiber on the whole and in 0.05d fiber the $(T_m)$ is $252^{circ}$ at untreated. In 0.01d fiber the $(T_m)$ was increased with weight loss of fiber.

Keywords

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