연신조건이 PBT/PTMGT계 탄성섬유 물성에 미치는 효과

이일재; 서무송; 최성욱; 김현택; 백두현

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자료유형: 학술저널

저자정보: 이일재 (충남대학교 유기소재.섬유시스템공학과) 서무송 (충남대학교 유기소재.섬유시스템공학과) 최성욱 (충남대학교 유기소재.섬유시스템공학과) 김현택 (충남대학교 유기소재.섬유시스템공학과) 백두현 (충남대학교 유기소재.섬유시스템공학과)

저널정보: 한국섬유공학회 한국섬유공학회지 한국섬유공학회지 제56권 제6호

발행연도: 2019.1

수록면: 424 - 432 (9page)

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연구결과

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Segmented block copolyetheresters based on poly(butylene terephthalate) (PBT) as a hard segment and poly(tetramethylene ether glycol) (PTMG) as a part of a soft segment were synthesized with varying hard segment content (HSC). The number average molecular weights of PTMG selected for use in this study were 650, 1000, 1800. The effects of the HSC and PTMG's molecular weight on the thermal properties of the copolyetheresters were examined, and five samples were selected for melt-spinning. From the results of the mechanical properties of the samples, we concluded that copolyetherester having 30 wt% of HSC with PTMGT 1800 is the best candidate among the copolymers tested for elastomeric fiber application. The fiber prepared from HSC 30 and PTMG 1800 was then drawn at various drawing temperatures and ratios. When the draw ratio was held constant, fibers drawn at higher temperature showed higher tenacity but lower elongation at break. This result is proposed to be due to the differences in the effectiveness of heat on the crystallinity, crystal size, and crystal orientation increments during the hot drawing process.

#segmented block copolyetheresters #elastomeric fiber #hot drawing #mechanical property

참고문헌 (18)

참고문헌 신청

Y. Su / 2015 / Effect of Hard Segment Length on the Properties of Poly(ether ester)Elastomer Prepared by One Pot Copolymerization of Poly(ethylene glycol)and Cyclic Butylene Terephthalate / J. Polym. Res 22:193~202

T. Y. Lee / 2011 / Enhancement of Physical Properties of Thermoplastic Polyether-ester Elastomer by Reactive Extrusion with Chain Extender / Polym. Bull 66:979~990

H. Ismail / 2002 / Thermoplastic Elastomers Based on Polypropylene/natural Rubber and Polypropylene/recycle Rubber Blends / Polym. Test 21:389~395

S. Cho / 2009 / High Molecular Weight Thermoplastic Polyether Ester Elastomer by Reactive Extrusion / Polym. Eng. Sci 49:1456~1460

A. Szymczyk / 2008 / New Multiblock Poly(ether-ester)s Based on Poly(trimethylene terephthalate)as Rigid Segments / Eur. Polym. J 44:436~443

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