A Study on Mechanical Properties of PBT/ABS Blends with Compatibilizers

PBT/ABS 블렌드의 상용화제에 따른 기계적 물성 연구

  • 윤기호 (전북대학교 대학원 고분자공학과) ;
  • 이중희 (전북대학교 신소재공학부) ;
  • 최재호 (㈜삼양사,화성연구소장)
  • Published : 2002.10.01


Poly-butylene-terephalate(PBT) can be impact-modified by blending with ABS material. The effects of compatibilizers and ABS content on the mechanical properties of PBT/ABS blend were examined in this study. EPDM-g-GMA and polycarbonate(PC) were used as a compatibilizer. As the GMA content in EPDM-g-GMA increased, the tensile strength of PBT/ABS blend increased and the impact strength decreased. With increasing the EPDM-g-GMA content in PBT/ABS blend, the tensile strength and impact strength decreased. With PC compatibilizer, the particle size of ABS in PBT/ABS blend became smaller than that of the blend without compatibilizer and the particles were more evenly dispersed in matrix. The maximum impact strength of the PBT/ABS blend was observed in the range of 20~30% ABS content.


Compatibilizer;Impact Strength;Blend;Mechanical Property;PBT/ABS


  1. Hale, W., Lee, J. -H., Keskkula, H., and Paul, D. R., 1999, 'Effect of PBT Melt Viscosity on the Morphology and Mechanical Properties of Compatibilized and Uncompatibilized Blends with ABS,' Polymer, Vol. 40, pp. 3621-3629
  2. Hale, W., Pessan, L. A., Keskkula, H., and Paul, D. R., 1999, 'Effect of Compatibilization and ABS Type on Properties of PBT/ABS Blends,' Polymer, Vol. 40, pp. 4237-4250
  3. Hage, E., Hale, W., Keskkula, H., and Paul, D. R., 1997, 'Impact Modification of Poly-butylene Terephthalate by ABS Materials,' Polymer, Vol. 38, No. 13, pp. 3237-3250
  4. Hale, W., Keskkula, H., and Paul, D.R., 1999, ''Fracture Behavior of PBT-ABS Blends Compatibilized by Methyl Methacrylate-Glycidyl Methacrylate-Ethyl Acrylate Terpolymers,' Polymer, Vol. 40, No. 12, pp. 3353 - 3365
  5. Hale, W., Keskkula, H., and Paul, D. R., 1999, 'Effect of Crosslinking Reactions and Order of Mixing on Properties of Compatibilized PBT/ABS Blends,' Polymer, Vol. 40, pp. 36653676
  6. Binsack, R., Rempel, D., Lindner, C., and Morbitzer, L., 1985, US Patent No. 4,535,124
  7. Wang, I., 1988, US Patent No. 4,753,986
  8. Pratt, C. F., Phadke, S. V., Oliver, E., 1988, US Patent No. 4,965,111
  9. Lee Joong-Hee and Lee Ho-Em, 2001, 'The Change of Mechanical Properties with Forming Conditions of Thermoplastic Composite in Compression Molding,' Transactions of the KSME A, Vol. 25, No.9, pp. 1416-1422
  10. Lee Joong-Hee, Lee Jeong-Kwon and Rhee Kyong-Yop, 2000, 'Effects of the Glass Fiber Characteristics on the Mechanical Properties of Thermoplastic Composite,' Transactions of the KSME A, Vol. 24, No.7, pp. 1697 - 1702
  11. Utacki, L. A., 1996, Commercial polymer blends, pp. 175 - 176
  12. Binsack, R., Rempel, D., Humme, G., and Ott, K.-H, 1981, US Patent No. 4,292,233