PTT/PET블렌드물의 흔화성과 열적 특성

Miscibility and Thermal Properties of PTT/PET Blends

  • 김영호 (숭실대학교 공과대학 섬유공학부) ;
  • 방경 (숭실대학교 공과대학 섬유공학부)
  • Kim, Young-Ho (School of Textile Engineering, Soongsil University) ;
  • Pang, Kyeong (School of Textile Engineering, Soongsil University)
  • 발행 : 2004.02.01

초록

Solution blends of poly(trimethylene terephthalate) (PTT) and poly(ethylene terephthalate) (PET) of various ratios were prepared and their miscibility and thermal properties were investigated. A single glass transition temperature (Tg), intermediate between those of two pure components, was observed at each composition in the PTT/PET blend system. This indicated that the blends of PTT/PET are completely miscible in the amorphous region. On the other hand, appearance of two melting points in the solution blends suggested that PTT and PET crystallize separately. With increase in heat treatment time in the melt state at 28$0^{\circ}C$ the two melting points became a single melting point, which decreased continuously due to the formation of copolymers. Especially, the melting point of the polymer of small content in the blends disappeared more rapidly by the transesterification reaction than that of the polymer of large content. The 50/50 PTT/PET blends converted into noncrystallizable random copolymers easily. The results also showed that in the PET-rich blends the crystallization of PTT was difficult, but in the PTT-rich blends the PET easily crystallized.

키워드

참고문헌

  1. J. Polym. Sci. : Polym. Phys. v.36 Heat Capacity of Poly(trimethylene terephthalate) M.Pyda;A.Boller;J.Grebowicz;H.Chuah;B.V.Lebedev;B.Wunderlich https://doi.org/10.1002/(SICI)1099-0488(199810)36:14<2499::AID-POLB4>3.0.CO;2-O
  2. J. Korean Fiber Soc. v.36 Dynamic Mechanical Analysis of Drawn and Annealed Poly(trimethylene terephthalate) Fiber P.R.Oh;K.J.Kim;Y.H.Kim
  3. Polymer v.23 Isothermal Crystallization Behavior and Some Physical Parameters of Poly(trimethylene terephthalate) K.M.Lee;K.J.Kim;Y.H.Kim
  4. J. Appl. Polym. Sci v.29 Blends of Poly(ethylene terephthalate) and a Polyarylate Before and After Transesterification M.Kimura;G.Salee;R.S.Porter https://doi.org/10.1002/app.1984.070290517
  5. Polymer v.36 Amorphous Poly(ethylene terephthalate)/Poly(butylene terephthalate) Blends: Miscibility and Properties N.Avramova https://doi.org/10.1016/0032-3861(95)93111-X
  6. Polym. Eng. Sci v.37 Crystallization in Blends of Poly(ethylene terephthalate) and Poly(butylene terephthalate) Y.Yu;K.J.Choi https://doi.org/10.1002/pen.11648
  7. J. Polym. Sci. : Polym v.24 Block Copolymers of Poly(ethylene terephthalate-polybutylene terephthalate). I. Preparetion and Crystallization Behavior A.Misra;S.N.Garg https://doi.org/10.1002/polb.1986.090240504
  8. Polymer v.38 Phase Behaviour and Transesterification in Poly(ethylene 2,6-naphthalate) and Poly(ethylene terephthalate) Blends S.C.Lee;K.H.Yoon;I.H.Park;H.C.Kim;T.W.Son https://doi.org/10.1016/S0032-3861(97)00010-4
  9. Polymer v.38 The Change of the Molecular Weight of Poly(ethylene 2,6-naphthalate) and Poly(ethylene terephthalate) Blend with Reaction Time K.H.Yoon;S.C.Lee;I.H.Park;H.M.Lee;O.O.Park;T.W.Son https://doi.org/10.1016/S0032-3861(97)00257-7
  10. J. Polym. Sci. : Polym. Chem. v.34 Miscibility of Poly(ethylene terephthalate)/Poly (ethylene 2,6-naphthalate) Blends by Transesterification D.W.Ihm;S.Y.Park;C.G.Chang;Y.S.Kim;H.K.Lee https://doi.org/10.1002/(SICI)1099-0518(199610)34:14<2841::AID-POLA1>3.0.CO;2-U
  11. Macromolecules Dynamic Mechanical Properties of Poly(ethylene terephthalate)/Poly (ethylene 2,6-naphthalate) Blends Y.Aoki;L.Li;T.Amari;K.Nishimura;Y.Arashiro
  12. Proc. Korean Textile Conference(Autumn) Thermal Analysis of PTMT/PET Blends K.Pang;P.R.Oh;J.C.Kim;Y.H.Kim
  13. Fibers and Polymers v.4 Thermal Properties of Poly(trimethylene terephthalate)/Poly(ethylene terephthalate) Melt Blends T.W.Son;K.I.Kim;N.H.Kim;M.G.Jeong;Y.H.Kim https://doi.org/10.1007/BF02899325