한국섬유공학회지 (Textile Science and Engineering)

  • 제48권6호
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  • Pages.364-370
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  • 2011
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
권호 표지

Annealing 조건이 Poly(1-oxotrimethylene) 섬유의 물리적 특성에 미치는 영향

Effects of Annealing Conditions on the Physical Properties of Poly(1-oxotrimethylene) Fibers

  • Bae, Won-Sik (Department of Organic and Nano Engineering, College of Engineering, Hanyang University) ;
  • Choi, Soo-Myung (Hyosung Corporation R&D Center) ;
  • Kim, Byoung-Chul (Department of Organic and Nano Engineering, College of Engineering, Hanyang University) ;
  • Chae, Dong-Wook (Department of Textile Engineering, Kyungpook National University)
  • 투고 : 2011.10.05
  • 심사 : 2011.12.08
  • 발행 : 2011.12.31
⟨ 이전 논문 다음 논문 ⟩

초록

The effects of annealing on the physical properties of poly(1-oxotrimethylene) (POTM) fibers were investigated in terms of draw ratio (DR). Annealing increased the degree of orientation with increasing DR. Analysis of wide angle X-ray diffraction patterns and Raman spectra suggested that annealing caused crystal structure transition from the ${\beta}$-form to the ${\alpha}$-form, which had a denser and more perfect crystal structure. The ${\beta}$-form and ${\alpha}$-form crystals were favorably formed for as-spun fibers and DR 13 fibers, respectively. In the fiber of DR 4, a combination of both ${\alpha}$- and ${\beta}$-form crystals was observed. Once the fiber was melted, no melt crystallization took place during cooling. Infrared spectra revealed that the melting process changed the chemical composition of POTM fibers by thermal decomposition, resulting in disappearance of the melt crystallization. In the stress-strain (SS) curve, the as-spun fibers exhibited yield behavior and a plateau region, while the drawn fibers gave a typical SS curve of brittle material without a plateau region. POTM fibers of DR 13 exhibited a significant increase in tensile modulus compared with as-spun and DR 4 fibers.

키워드

참고문헌

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