Journal of the Korean Society of Clothing and Textiles (한국의류학회지)
- Volume 11 Issue 3 Serial No. 25
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- Pages.33-40
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- 1987
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- 1225-1151(pISSN)
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- 2234-0793(eISSN)
The Microstructural Changes of Heat Set PET Fully Drawn Yarns
PET 완전배향사의 열처리에 따른 내부구조 변화
- Choi Jong Myoung (Dept. of Clothing and Textiles, College of Home Economics, Yonsei University) ;
- Cho Gil Soo (Dept. of Clothing and Textiles, College of Home Economics, Yonsei University) ;
- Kim Kap Jin (Dept. of Textile Engineering, College of Engineering, Kyunghee University)
- Published : 1987.12.01
Abstract
PET FDY was heat set at various temperatures and times and the microstructural changes was investigated through crystallinity, birefringence and melting behavior analyses. Crystallinity of heat set PET increased as the treatment temperature and time increased. Birefringence also increased as temperature and time increased. The melting behavior of heat set PET was as follows: In most cases, PET showed double melting peaks. As temperature and time increased, form II crystal became sharp and increased in size, and form I crystal decreased in size. The slower the heating rate, the higher the programmed heating effect during DSC analysis.
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