재활용 폴리에스터 칩의 물성 향상 연구

최연주; 이중규; 김성훈; 임기섭; 이주형; 이준희

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자료유형: 학술저널

저자정보: 최연주 (한양대학교 유기나노 공학과) 이중규 (SKC 기술연구소) 김성훈 (한양대학교 유기나노 공학과) 임기섭 (한양대학교 유기나노 공학과) 이주형 (한양대학교 유기나노 공학과) 이준희 (한양대학교 유기나노 공학과)

저널정보: 한국섬유공학회 한국섬유공학회지 한국섬유공학회지 제48권 제2호

발행연도: 2011.1

수록면: 79 - 84 (6page)

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연구방법

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연구결과

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To improve the physical properties of recycled polyester chips, virgin PET chips were compounded with the ratio of 20 wt%, 40 wt%, and 70 wt%. Recycled PET chips blended with virgin PET chips exhibited decreased molecular weights and intrinsic viscosities compared with 100% recycled PET chips and virgin PET chips, and this was caused by thermal and hydrolytic decomposition. End-group contents and MFI both increased in the blended PET chips. As the virgin PET chip contents increased in the recycled PET chips, the melting temperature tended to increase. Recycled PET chips exhibited a higher crystallization temperature compared with virgin PET chips. Morphologies of recycled PET films were analyzed by scanning electron microscopy (SEM). Yellowing of recycled PET chips resulted from intramolecular cross-linking and oxidation reactions. As virgin PET chips were compounded with recycled PET chips, yellowing was reduced. The ash contents were increased in the recycled PET chips which were blended with virgin PET chips. As recycled PET chip contents were similar to those of virgin PET chips, the ash contents were the highest in the experimental materials.

#recycled PET chip #virgin PET chip #molecular weight #crystallization temperature #yellowing #ash content

참고문헌 (12)

참고문헌 신청

J. H. Kim / 1991 / Thermal Degradation Behavior of Poly(ethylene Terephthalate)/Poly(butylene Terephthalate) Blends System / J Korean Fiber Soc 28:55~64

김준호 / 2005 / 테레프탈레이트계 폴리에스터의 열분해 거동에 관한 연구 / 한국섬유공학회지 42(4):228~234

김성훈 / 2005 / 재활용 극세사 부직포의 기능화 처리 / 한국섬유공학회지 42(6):370~375

M. Paci / 1998 / Competition between Degradation and Chain Extension during Processing of Reclaimed Poly(ethylene terephthalate) / Polymer Degradation and Stability 61:417~420

Y. K. Son / 2008 / Recycle of Synthetic Fibers / Fiber Technol Ind 12:197~203