Article
  • Physical Properties of Polyester Elastomer/Poly( vinyl chloride) Blends
  • Kim BS, Kim YS, Jang SH
  • Polyester Elastomer/poly(vinyl chloride) Blends의 물성
  • 김봉식, 김영식, 장상희
Abstract
Blends of poly(viny1 chloride) (PVC) and segmented polyester elastomer(PEL) in which a hard-segment is PBT and soft-segment is PTMG were prepared by a twin-screw extruder. Specimens were prepared by injection molding. Blend films were prepared by solid state extrusion with capillary rheometer at 50℃. Thermal, mechanical, and dynamic mechanical properties of these blends were investigated. It was found that the Tg of these blends decreased with increasing PEL content and increased with increasing draw ratio. The crystallinity of these blends increased with increasing draw ratio and PEL content. Storage modulus of these blends increased with increasing draw ratio and decreased with increasing temperature. The tensile strength of these blends increased with increasing draw ratio and PEL content.

폴리염화비닐(PVC)과 hard-세그먼트인 폴리부칠렌테레프탈레이트 (PBT)와 soft-세그먼트인 폴리테트라메틸렌에테르글라이콜 (PTMG)로 구성된 폴리에스테르 엘라스토머(PEL) 블렌드를 이축압출기를 사용하여 제조하였다. 이 블렌드를 사출성형하여 시편을 제조하고, 또한 다른 한편으로는 이 블렌드를 용융 압축시켜 블렌드 필름을 제조하고, 이 블렌드 필름을 모세관 레오메타로 고상압출시켜 연신필름을 제조하셨다. 이 블렌드의 열적, 기계적 및 동역학적 특성을 조사하였다. 블렌드의 Tg는 PEL 함량이 증가할수록 감소하였고, 연신비가 증가할수록 증가하였다. 블렌드의 결정화도는 PEL 함량 및 인신비 증가와 더불어 증가하였다. PEL/PVC 블렌드의 저장탄성율은 연신비의 증가와 더불어 증가하였고, 반면 온도의 증가와 더불어 감소하였다. 블렌드의 인장강도는 연신비와 PEL 함량의 증가와 더불어 증가하였다.

Keywords: physical properties; polyester elastomer; poly(vinyl chloride); blends

References
  • 1. Noolandi J, Polym. Eng. Sci., 24, 70 (1984)
  •  
  • 2. Blaga A, Feldman D, Banu D, J. Appl. Polym. Sci., 29, 3421 (1984)
  •  
  • 3. Hur DS, J. Korean Inst. Rubber, 24, 26 (1989)
  •  
  • 4. Lee SH, Lucky Polym. Technol., 10, 71 (1989)
  •  
  • 5. Inoue T, Snomura F, Ougizawa T, Miyasaka K, Rubber Chem. Technol., 58, 873 (1985)
  •  
  • 6. Cella RJ, J. Polym. Sci. C: Polym. Lett., 42, 727 (1973)
  •  
  • 7. Danesi S, Porter RS, Polymer, 19, 448 (1978)
  •  
  • 8. Dao KC, Polymer, 25, 1527 (1984)
  •  
  • 9. Baer M, J. Appl. Polym. Sci., 16, 1109 (1972)
  •  
  • 10. Bragaw CGAdvances in Chemistry, Ser. 99, 86, Am. Chem. Soc., Washington, D.C. (1971)
  •  
  • 11. Speri WM, Patrick GR, Polym. Eng. Sci., 15, 668 (1975)
  •  
  • 12. Riew CK, Rowe EH, Siebert ARAdvances in Chemistry, Ser. 154, Am. Chem. Soc., Washington D.C. (1976)
  •  
  • 13. Miller STIS Report 79MAL005, General Electric Company, Louisville, KY (1978)
  •  
  • 14. Miller SProceedings Inst. Conf. Toughening of Plastics, Paper 8, Plastics and Rubber Institute, London (1978)
  •  
  • 15. Nishi T, Kwei TK, Wang TT, J. Appl. Phys., 46, 4157 (1975)
  •  
  • 16. Hourston DJ, Hughes ID, Rubber Conf., 1, 13 (1977)
  •  
  • 17. Nishi T, Kwei TK, J. Appl. Polym. Sci., 20, 1331 (1976)
  •  
  • 18. Hytrel Bulletin 1-25, Blends of Hytrel Polyester Elastomer with PVC, E.I. du Pont de Nemours and Company, Delaware (1976)
  •  
  • 19. Thomas S, Kuriakose B, Gupta BR, De SK, Plast. Rubber Process Appl., 6, 85 (1986)
  •  
  • 20. Thomas S, Gupta BR, De SK, Radiat. Phys. Chem., 28, 283 (1986)
  •  
  • 21. Thomas S, Gupta BR, De SK, J. Vinyl Tech., 9, 77 (1987)
  •  
  • 22. Thomas S, Gupta BR, De SK, J. Appl. Polym. Sci., 34, 2053 (1987)
  •  
  • 23. Coleman MM, Zarian J, Varnell DF, Painter PC, J. Polym. Sci. C: Polym. Lett., 15, 745 (1977)
  •  
  • 24. Coleman MM, Varnell DF, Macromolecules, 13, 1403 (1980)
  •  
  • 25. Mead WT, Desper CR, Porter RS, J. Polym. Sci. B: Polym. Phys., 17, 859 (1979)
  •  
  • 26. Southern JH, Porter RS, J. Appl. Polym. Sci., 14, 2305 (1970)
  •  
  • 27. Takayanagi MViscoelastic Properties of Crystalline Polymers, Mem. of the Fac. of Eng., Kyushu University, 23, 1 (1963)
  •  
  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1995; 19(6): 903-912

    Published online Nov 25, 1995